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Tytuł:
Natural hazard and disaster tourism
Autorzy:
Rucińska, Dorota
Lechowicz, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/2037015.pdf
Data publikacji:
2014-04-10
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
Tourism
natural hazards
natural catastrophes
natural disasters
Opis:
An observed trend, which can be defined as tourist interest in natural hazards and disasters, has persuaded the authors to attempt to research several issues, including tourist motivations and specific tourism properties and functions of this form of activity. The objective also covered the allocation of this social and natural process in the general structure of tourism. This interest has a long history, and a new stage is currently forming, which partly results from factors affecting society, such as information and education, which provoke antagonistic reactions. Extreme natural phenomena entail a common reduction of tourist interest in the destination which hosted the event; however, it never drops to zero. Differences are visible depending on the type of phenomenon. On the other hand, natural hazards and disasters are considered to hold a specific tourism value. This article discusses the allocation of this human activity in the tourism forms known to scientists, accounting for its diversity and relating to ethics.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2014, 18, 1; 17-25
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Innovative solutions in natural gas engineering
Autorzy:
Łaciak, M.
Włodek, T.
Powiązania:
https://bibliotekanauki.pl/articles/298695.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
natural gas
natural gas sector
Natural Gas Engineering
innovative solutions
Opis:
The role of natural gas increases in the world energy mix. Natural gas is an ecologic fuel and is used as an energy source in various industries, primarily in transportation. The increased role of natural gas causes the research for innovations and technology development. In modern industry technological innovations should not be presented only as a simple laboratory activities to develop a new tools, solutions and technological processes in natural gas sector. With the rapid development of the natural gas sector in the world in many countries the process of transformation of the national industrial base with the use of natural gas has begun. Natural gas can also be considered as an important bridge to other alternative sources of energy derived from fuel and effective for the environment. In this article the latest trends in the natural gas sector are collected and presented.
Źródło:
AGH Drilling, Oil, Gas; 2017, 34, 1; 259-271
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of ORC systems at natural gas compression station
Autorzy:
Kowalski, R.
Łaciak, M.
Liszka, K.
Oliinyk, A.
Paszylk, P.
Powiązania:
https://bibliotekanauki.pl/articles/299125.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
natural gas
transmission pipelines
natural gas composition
contamination of natural gas
Opis:
Natural gas is a mixture of hydrocarbons with combustible methane as the main component, the content of which usually exceeds 90. Among the remaining components of natural gas are ethane, propane, butane, nitrogen, carbon dioxide, sulfur compounds. Helium can be also found in some natural gas fields. The composition of natural gas depends on, e.g. the field from which the gas comes, and also way in which it is transported, i.e. pipelines, LNG technology. The quality of natural gas is regulated by respective standards. Gas transmission pipelines are the most popular method, dominating on the international gas market, though LNG technology has recently started to play the more and more prominent role. The intensive development of renewable energy sources is accompanied by the development of the Power to gas technology - the electric energy excess is used for the hydrogen production, which can be directed to the existing natural gas network and such a mixture of natural gas and nitrogen is transmitted. At present transmission pipelines for nitride natural gas Ls and Lw exist in Poland. The aim of this paper is analyzing the influence of natural gas admixtures on the operation parameters of transmission pipelines.
Źródło:
AGH Drilling, Oil, Gas; 2017, 34, 2; 513-530
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the participation of various components in natural gas transport
Autorzy:
Apostol, R.
Kowalski, R.
Liszka, K.
Łaciak, M.
Olijnyk, A.
Szurlej, A.
Powiązania:
https://bibliotekanauki.pl/articles/299297.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
natural gas
transmission pipelines
natural gas composition
contamination of natural gas
Opis:
Natural gas is a mixture of hydrocarbons with combustible methane as the main component, the content of which usually exceeds 90%. Among the remaining components of natural gas are ethane, propane, butane, nitrogen, carbon dioxide and sulfur compounds. Helium can be also found in some natural gas fields. The composition of natural gas depends on, e.g. the field from which the gas comes, and also way in which it is transported, i.e. pipelines, LNG technology. The quality of natural gas is regulated by respective standards. Gas transmission pipelines are the most popular and dominant method of gas transport on the international gas market, though LNG technology has recently started to play an increasingly prominent role. The intensive development of renewable energy sources is accompanied by the development of the Power to gas technology – the electric energy excess is used for the hydrogen production, which can be directed to the existing natural gas network and such a mixture of natural gas and nitrogen is transmitted. At present, transmission pipelines for nitride natural gas Ls and Lw exist in Poland. The aim of this paper is to analyze the influence of natural gas admixtures on the operational parameters of transmission pipelines.
Źródło:
AGH Drilling, Oil, Gas; 2017, 34, 4; 883-894
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Technological and safety aspects of CNG home fast refueling units
Autorzy:
Kuczyński, S.
Liszka, K.
Łaciak, M.
Oliinyk, A.
Strods, R.
Szurlej, A.
Powiązania:
https://bibliotekanauki.pl/articles/298681.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
CNG
natural gas
safety
natural gas vehicles
Opis:
Despite all global economic shifts and the fact that natural gas is recognized worldwide as the main and the leading alternative to oil products in transportation sector, there is a huge barrier to switch passenger vehicle segment to natural gas – the lack of refueling infrastructure for natural gas vehicles. The key to solving that problem and providing barrier breaking refueling infrastructure solution for natural gas vehicles (NGV) is home fast refueling units. It operates using natural gas (methane), which is being provided through gas pipelines at client’s home, and electricity connection point. It enables an environmentally friendly NGV’s home refueling just in minutes. The underlying technology is one stage hydraulic compressor (instead of multistage mechanical compressor technology) which provides the possibility to compress low pressure gas from residential gas grid to 200 bar for its further usage as a fuel for NGVs. More than efficiency and convenience, the direct hydraulic compressor technology provides compelling cost and lifetime advantages as well as superior convenience over other solutions. Aims of this article is to compare technical, technological and safety aspects of home refueling units and estimate a perspectives of natural gas vehicles as an alternative for regular vehicles.
Źródło:
AGH Drilling, Oil, Gas; 2016, 33, 2; 425-432
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Natural gas consumption by cookers in multi-family houses
Autorzy:
Jasiewicz, M.
Nadolna, M.
Stec, M.
Słobodzian-Ksenicz, O.
Powiązania:
https://bibliotekanauki.pl/articles/299044.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
natural gas
natural gas consumption
simultaneity coefficient
Opis:
This article presents the results of research on the natural gas consumption of cookers in two multi-family houses located in a large housing estate in a city with a population of 100,000 people. Monthly, daily, and hourly variations in natural gas consumption were analyzed. The actual maximum consumption was determined and compared with the calculated demand for natural gas.
Źródło:
AGH Drilling, Oil, Gas; 2018, 35, 3; 413-421
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kapitał naturalny jako kategoria socjologiczna
NATURAL CAPITAL AS A SOCIOLOGICAL CATEGORY
Autorzy:
Górnicki, Konrad
Powiązania:
https://bibliotekanauki.pl/articles/597765.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet w Białymstoku. Wydawnictwo Uniwersytetu w Białymstoku
Tematy:
CONSTRUCTIVISM
ECOLOGICAL CONSCIOUSNESS
INTERESTS
NATURAL ENVIRONMENT
NATURAL CAPITAL
NATURAL RESOURCES
VALUE
WILDLIFE
Opis:
Te article outlines the notion of natural capital and its usefulness in a sociological analysis. It presents the perspectives on the environment, including the social constructionist approach. Te work emphasizes the meaning of natural capital (and associated interests) within ecological consciousness research. It also explores the problem of evaluating the social value of natural capital. Te author attempts to present the possible linkages between natural capital research and sociology of borderlands.
Źródło:
Pogranicze. Studia Społeczne; 2012, 20; 297-320
1230-2392
Pojawia się w:
Pogranicze. Studia Społeczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Natural Resources, Classification of Natural Potential, Sustainable Development
Autorzy:
Rajović, Goran
Bulatović, Jelisavka
Powiązania:
https://bibliotekanauki.pl/articles/1119185.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Natural resources
classification
natural potential
sustainable development
Opis:
Natural resources are limited, whether as a non-renewable or renewable. Planet Earth has a natural capacity and it is given for the human community. The current pace of development of the world economy and the accelerated population growth are threatened and may soon lead to exhaustion of non-renewable energy resources and exceed the speed of regeneration of renewable resources (water, energy, food), thus leading into questioning the survival of human communities and future generations. Only through the application of the principles of sustainable development (sustainable use of resources) and implementation of logic survival one can assure safe and steady growth to be followed by present and future needs of human being.
Źródło:
World News of Natural Sciences; 2017, 6; 12-27
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Acoustic Influence of Vehicles on a Protected Natural Area in the Southwest of the Iberian Peninsula
Autorzy:
Sánchez-Sánchez, R.
Fortes-Garrido, J. C.
Bolívar, J. P.
Powiązania:
https://bibliotekanauki.pl/articles/176775.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
natural sounds
soundscapes
noise
protected natural area
Opis:
Natural sounds are essential elements for ecosystems, and therefore necessary for many ecological functions, forming what is called “natural soundscapes”. The Natural Reserve Laguna del Portil (NRLP), located in the southwest of the Iberian Peninsula, is an ecosystem which was declared by Spanish authorities as Protected Natural Reserve. In the south area of the NRLP, there is a regional road with high traffic intensity, which affects the soundscapes of this natural reserve. In this study, the road potential noise impact on the natural sounds of the NLRP is analysed. This analysis was done both in winter and summer, and also using two independent methods: 1) spatial sampling measures in 43 different points of the NRL; and 2) noise mapping using noise levels prediction software. From the comparison of the results of both methods and seasons the following conclusions were reached: 1) an approach to the natural soundscape of NRLP both in winter and summer, 2) the acoustic impact of the road on the NRLP, and 3) the variation of the traffic noise depending on the distance to the road, and its seasonal variation. This study could be to improve the management of the NRLP and to help to preserve the natural soundscape of the reserve.
Źródło:
Archives of Acoustics; 2018, 43, 2; 177-185
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anti-tubercular substances produced by plants
Autorzy:
Polak, Żaneta
Kapka-Skrzypczak, Lucyna
Powiązania:
https://bibliotekanauki.pl/articles/972532.pdf
Data publikacji:
2017
Wydawca:
Instytut Medycyny Wsi
Tematy:
tuberculosis
endophytes
plant medicines
natural drugs
natural compounds
Opis:
Tuberculosis is one of the common causes of death worldwide, and according to the World Health Organization, in 2015, about 10.4 mln people globally is suffering from that disease. Despite great development in medicine and discovery of many antimycobacterial drugs, tuberculosis remains an unsolved problem. The populations of countries in Africa, Asia and South America have difficult access to hygiene, medical care and medicines, and they therefore resort to consulting traditional practitioners who mainly use drugs from natural sources which they prepare themselves. Plants are the biggest source of such medicines and are used as extracts, decoctions or powders, often without any evidence of their actual activity. Isolates from plants sometimes contain unknown substances or some second metabolites of microorganisms. In vitro studies have shown that some of these medicines have effective antimycobacterial properties, even against clinical, resistant strains. This is hopeful in the situation where more and more cases of tuberculosis prove to be resistant to standard drugs. Extracts of medicinal plants are often synergistic with synthetic drugs. Substances with insufficient MIC can be a basis for derivatives which have better properties. This thesis summarizes the current international knowledge of the use of plant substances used in the treatment of tuberculosis that could be potential new antituberculous drugs.
Źródło:
Journal of Pre-Clinical and Clinical Research; 2017, 11, 2; 147-152
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Connections from trivializations
Autorzy:
Kurek, Jan
Mikulski, Włodzimierz
Powiązania:
https://bibliotekanauki.pl/articles/747288.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
Gauge natural bundle
gauge natural operator
principal connection
Opis:
Let P be a principal fiber bundle with the basis M and with the structural group G. A trivialization of P is a section of P. It is proved that there exists only one gauge natural operator transforming trivializations of P into principal connections in P. All gauge natural operators transforming trivializations of P and torsion free classical linear connections on M into classical linear connections on P are completely described.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska, sectio A – Mathematica; 2016, 70, 2
0365-1029
2083-7402
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska, sectio A – Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The retrograde condensation problem in natural gas pipeline transportation system
Autorzy:
Włodek, T.
Powiązania:
https://bibliotekanauki.pl/articles/298771.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
natural gas
reverse condensation
pipelines
natural gas pipelines
Opis:
Natural gas prepared for pipeline transportation must have appropriate parameters described in norms and standards. This entails a restrictive approach to acceptable changes in the composition of the natural gas in pipeline transmission system. The greater number of entry points to the pipeline transmission system causes a greater probability of natural gas diversity in terms of the content of its individual components. It particularly concerns the natural gas sources in which treatment methods are not sufficiently accurate and also imported gas. In specific cases where natural gas with a higher content of heavier hydrocarbons such as propane and butane will enter the transportation system, it is possible for the phenomenon of retrograde (reverse) condensation to occur. The occurrence of the two-phase system significantly worsens the pipeline transport conditions, causing significant pressure drops of transported natural gas. The article examines cases where the phenomenon of retrograde (reverse) condensation occurred in the pipeline transportation of natural gas.
Źródło:
AGH Drilling, Oil, Gas; 2017, 34, 3; 701-713
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
In the face of the rising importance of natural gas to the Polish economy
Autorzy:
Skrzyński, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/904318.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Ekonomiczny w Krakowie, Małopolska Szkoła Administracji Publicznej
Tematy:
natural resource security
national security
energy policy
natural gas
pipelines
transportation investment
natural resources
Opis:
Objective: The purpose of this text is to determine ways of diversifying the sources of origin and directions for importing natural gas to Poland until the agreement for the supply of Russian gas expires in 2022. In so doing, the growth of extraction in Poland, deliveries from other countries and the partial replacement of gas in the economy with raw materials available in Poland are all analys ed. Research design and methods: A reasonable approach to energy policy, factor analysis and elements of multidimensional comparative analysis were adopted. Findings: It is important that gas imports to the country are substantially increased in winter and it is essential that the capacity of gas storage facilities, in particular cavity facilities, is increased as well. Furthermore, it is necessary to attempt to reduce energy consumption, with different preferences that facilitate the growth of the share of renewable sources of energy (RSE) in the energy mix. Implications / Recommendations: This article presents arrangements which may prove to be useful for implementation of Polish energy policy. Contribution / Value Added: Considerable political changes and alterations to the gas market have superseded a number of researchers’ arrangements and forecasts concerning Poland. What is missing is a comprehensive analysis, based on data from 2017 and 2018, of increasing the diversification of gas supplies to Poland.
Źródło:
Zarządzanie Publiczne / Public Governance; 2019, 1(47); 48-60
1898-3529
2658-1116
Pojawia się w:
Zarządzanie Publiczne / Public Governance
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of hydrogen transported through a gas pipeline on the functioning of gas compression station work
Autorzy:
Zabrzeski, Ł.
Janusz, P.
Liszka, K.
Łaciak, M.
Szurlej, A.
Powiązania:
https://bibliotekanauki.pl/articles/298659.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
natural gas pipelines
natural gas
hydrogen
gas compression stations
Opis:
The production of hydrogen based on excess electricity and transporting it by pipeline as a mixture with natural gas may be an excellent completion of an energy system. When dealing with gas transmission over long distances, gas compression stations become an integral part of the natural gas grid, providing desired pressure of this source of power in pipes. In this paper the effect that hydrogen admixture has on the main parameters of the operation of gas compression stations was described.
Źródło:
AGH Drilling, Oil, Gas; 2017, 34, 4; 959-968
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Continuity of projections of natural bundles
Autorzy:
Mikulski, Włodzimierz
Powiązania:
https://bibliotekanauki.pl/articles/1312025.pdf
Data publikacji:
1992
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
natural bundle
quasi-natural bundle
regular quasi-natural bundle
locally determined associated space
quasi-prolongation functor
Opis:
This paper is a contribution to the axiomatic approach to geometric objects. A collection of a manifold M, a topological space N, a group homomorphism E: Diff(M) → Homeo(N) and a function π: N → M is called a quasi-natural bundle if (1) π ∘ E(f) = f ∘ π for every f ∈ Diff(M) and (2) if f,g ∈ Diff(M) are two diffeomorphisms such that f|U = g|U for some open subset U of M, then E(f)|π^{-1}(U) = E(g)|π^{-1}(U). We give conditions which ensure that π: N → M is continuous. In particular, if (M,N,E,π) is a quasi-natural bundle with N Hausdorff, then π is continuous. Using this result, we classify (quasi) prolongation functors with compact fibres.
Źródło:
Annales Polonici Mathematici; 1992, 57, 2; 105-120
0066-2216
Pojawia się w:
Annales Polonici Mathematici
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An English neural network that learns texts, finds hidden knowledge, and answers questions
Autorzy:
Ke, Y.
Hagiwara, M.
Powiązania:
https://bibliotekanauki.pl/articles/91771.pdf
Data publikacji:
2017
Wydawca:
Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
Tematy:
natural language processing
neural network
question answering
natural language understanding
Opis:
In this paper, a novel neural network is proposed, which can automatically learn and recall contents from texts, and answer questions about the contents in either a large corpus or a short piece of text. The proposed neural network combines parse trees, semantic networks, and inference models. It contains layers corresponding to sentences, clauses, phrases, words and synonym sets. The neurons in the phrase-layer and the word-layer are labeled with their part-of-speeches and their semantic roles. The proposed neural network is automatically organized to represent the contents in a given text. Its carefully designed structure and algorithms make it able to take advantage of the labels and neurons of synonym sets to build the relationship between the sentences about similar things. The experiments show that the proposed neural network with the labels and the synonym sets has the better performance than the others that do not have the labels or the synonym sets while the other parts and the algorithms are the same. The proposed neural network also shows its ability to tolerate noise, to answer factoid questions, and to solve single-choice questions in an exercise book for non-native English learners in the experiments.
Źródło:
Journal of Artificial Intelligence and Soft Computing Research; 2017, 7, 4; 229-242
2083-2567
2449-6499
Pojawia się w:
Journal of Artificial Intelligence and Soft Computing Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Global optimal vessel capacity for LNG production and transportation
Autorzy:
Igboanusi, Cninemerem
Amuji, Harrison Obiora
Onukwube, Obioma G.
Chikadibia, Nwosu Azuwueze
Powiązania:
https://bibliotekanauki.pl/articles/2141225.pdf
Data publikacji:
2022
Wydawca:
Fundacja Centrum Badań Socjologicznych
Tematy:
natural gas
liquefied natural gas
vessel capacity
transportation
linear programming
Opis:
In this paper, developed a linear programming model to determine the volume of vessels that will give an optimal return on investment. The solution to the developed model was carried out using the Interior Point algorithm with the help of the MATLAB package. The analysis observed that the production and transporting of the LNG with a vessel of capacity 178,5006m3 would give an optimal profit of 633,640 million USD. And from the results of the analysis, we observed that the decision to take the maximum modern capacity instead of lower capacities yields the highest profit.
Źródło:
Journal of Sustainable Development of Transport and Logistics; 2022, 7, 1; 82-89
2520-2979
Pojawia się w:
Journal of Sustainable Development of Transport and Logistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of attitudes of local communities towards the creation of protected areas on the example of national parks in Austria and Germany
Autorzy:
Szalast-Piwińska, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/26917708.pdf
Data publikacji:
2023
Wydawca:
Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
Tematy:
precious natural areas
national park
conflicts in precious natural areas
Opis:
The aim of this study was to present the attitudes of local communities in the process of creating a national park – a precious natural area with a high protection regime. The study takes into account the actions of the authorities and legal regulations concerning, among other things, the possibility of agricultural and economic activities in the park. The considerations were based on the presentation of the cases of the establishment of the National park Donau-Auen in Austria and the National park Schwarzwald in Germany. Among others, official documents, publications, reports, studies, online information (e.g. on websites) and legal acts concerning nature conservation and national parks were analysed. The factor that mobilised communities in the process of establishing the two national parks was the decisions of the public authorities. The Donau-Auen National park is an example of effective community action in defence of nature. Its creation was preceded, among other things, by the ‘Hainburg Aubsetz’ campaign,a community initiative demonstrating the importance of nature conservation in Austria. The creation of the Schwarzwald National park, on the other hand, is an example of the NIMBY (not in my back yard) phenomenon, where the local community accepts nature conservation but opposes it when its rights are curtailed. The dialogue between the authorities and the public has shown in both cases that awareness-raising activities on decisions related to the creation of a protected area are necessary. The approval of local communities in the creation of protected areas is linked to the expectation that these areas will provide social and economic benefits. The creation of a protected area can mean profits for businesses in the area or a worsening of the living situation of landowners excluded from production, indicating a link between nature conservation and living standards and poverty. In the cases discussed, there is no data on the level of poverty and its impact on the attitudes of local communities towards protected areas. It seems important to carry out relevant research in this regard in the future.
Źródło:
Polish Journal of Agronomy; 2023, 52; 22-30
2081-2787
Pojawia się w:
Polish Journal of Agronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quality analysis in the supply chain of transported LNG
Autorzy:
Czerwińska, Karolina
Pacana, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/101776.pdf
Data publikacji:
2019
Wydawca:
Instytut Polityki Energetycznej im. Ignacego Łukasiewicza
Tematy:
supply chain
natural gas
liquefied natural gas
LNG
quality control
Opis:
The natural gas market has changed over the last few years. The approach to commercial relations hitherto was conditioned by the method of supply of this raw material, which was mainly carried out using gas pipelines. Taking into account the fact that natural gas has a six hundred times higher energy density in the form of LNG than in uncompressed form, it is economically justified to transport the resource by more than just traditional gas pipelines. Maritime transport of LNG has become an alternative means of delivering volumes to areas with insufficient gas resources. The article presents general methods of settlement and quality control of LNG in marine loading and receiving terminals. The types of measurements used in LNG settlements carried out on ships and on land are analysed. The aim of the paper was to analyse the way of ensuring and supervising the quality of LNG transported to the ship and to design an assessment form and monitor the stability of the quality level of LNG supplies with the use of a single measurement control card. It is proposed to use a two-track numerical stabilisation control card for single measurements and a mobile range IX-MR (Xi-MR).
Źródło:
Energy Policy Studies; 2019, 2 (4); 3-18
2545-0859
Pojawia się w:
Energy Policy Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
CNG - a new way of maritime natural gas supplies
CNG - nowy sposób morskich dostaw gazu ziemnego
Autorzy:
Żuchowicki, J.
Lelonek, T.
Powiązania:
https://bibliotekanauki.pl/articles/1819563.pdf
Data publikacji:
2011
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
gaz ziemny
CNG
transport morski
natural gas
compressed natural gas
Opis:
Among other conventional energy sources, on the present level of technology development, natural gas is a primary energy source, which has the lowest level of harmful substances emission both for humans and the environment. Comparing to coal - in the burning process of the natural gas there is a very low emission of pollutants: trace amounts of sulphur and carbon dioxide, which established natural gas' position as an environmentally friendly fuel. CO2 emission expressed in CO2 kg/kWh of fuel during burning process of lignite amounts to 0.40; of hard coal - 0.33; of heavy fuel oil - 0.28; of light fuel oil - 0.26 and 0.20 of gas. The use of natural gas as a fuel instead of other kinds of fossil fuels, e.g.: coal, results in decreasing harmful substances emission. Therefore, CO2 emission or sulphur dioxide emission is much smaller. What's more, lower CO2 emission means decreasing the greenhouse effect and lower sulphur dioxide emission reduces the amount of acid rains. Natural gas system is different than networks, such as water supply, heat or electricity in such way that, in Poland it is necessary to acquire most of the distributed medium from the sources located outside Polish borders.
Zastosowanie gazu ziemnego jako paliwa w miejsce innych rodzajów paliw kopalnych, takich jak, np. węgiel, przynosi efekt w postaci ograniczenia emisji szkodliwych substancji do atmosfery. Zmniejszeniu ulega bowiem, między innymi, emisja dwutlenku węgla, dwutlenku siarki. Zmniejszanie wielkości emisji dwutlenku węgla do atmosfery wpływa na obniżenie skali zjawiska cieplarnianego. Natomiast zmniejszenie emisji dwutlenku siarki skutkuje redukcją ilości kwaśnych deszczy Podstawowym problemem zaopatrzenia w gaz ziemny odbiorców w Polsce jest to, że zasoby tego surowca energetycznego zlokalizowane na terenie naszego kraju nie są w stanie zaspokoić istniejących zapotrzebowań. Koniczne jest więc importowanie gazu ziemnego. Dostawy gazu ziemnego, w zależności od dostępnej infrastruktury gazowej, wielkości danego rynku zbytu, odległości od źródła gazu oraz innych uwarunkowań, mogą być realizowane z wykorzystaniem rurociągów (gazociągów) lub też drogą morską (statki dostarczające LNG z ang. Liquefied Natural Gas, statki dostarczające CNG z ang. Compressed Natural Gas). Podstawową zaletą łańcucha dostaw CNG są stosunkowo niewielkie nakłady związane z infrastrukturą załadunkową i rozładunkową. Niemniej największym nakładem kapitałowym jest flota statków CNG (około 80%). Inne elementy łańcucha dostaw związane z wydobyciem i obróbką gazu ziemnego jak również z rozprowadzeniem gazu do odbiorców końcowych gazociągami są tożsame z innymi sposobami dostaw gazu ziemnego. W pracy przedstawiono przegląd proponowanych rozwiązań umożliwiających transport morski gazu ziemnego w postaci CNG. Przedstawione rozwiązania to w chwili obecnej koncepcje, a załączone rysunki statków przedstawiają możliwy wygląd statków CNG z zastosowaniem różnych technologii.
Źródło:
Rocznik Ochrona Środowiska; 2011, Tom 13; 137-148
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ways of increasing natural gas storage capacity in underground gas storages in the Czech Republic
Autorzy:
Bujok, Petr
Klempa, Martin
Kunz, Antonin
Porzer, Michal
Rado, Robert
Roček, Erik
Ryba, Jakub
Powiązania:
https://bibliotekanauki.pl/articles/299243.pdf
Data publikacji:
2019
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
natural gas
storage of natural gas
geological structures
Czech Republic
Opis:
Natural gas fields are usually located far away from the end users and industrially developed countries, where the gas demand is highest. In such cases, natural gas is transported from the production site to the receiver mainly with gas pipelines. Such pipelines may transmit a definite volume of natural gas. Most of the time gas transport is stable in time, unless the demand changes, e.g. in winter or in the case of pipeline failure. In such a case the pipeline system cannot cover the increased demand and supply sufficient amounts of gas. One of the ways to solve the problem of varying demand and limited potential as far as gas transmission over long distances is concerned, are underground gas storages, thanks to which the operational gas deliveries can be regulated, i.e. it can be stored in periods of lower demand and used in the high demand situations. This safety buffer provides the stability and reliability of the entire natural gas distribution system. The methods of increasing the natural gas storage capacity of UGS were discussed in this paper with special emphasis on the primary and secondary tightness of geological structures hosting UGS. Authors also analyzed how laboratory tests conducted at VŠB-TU Ostrava can be broadened to verify the possibilities of increasing natural gas storing capacity, depending of the geological horizons and structures in which the UGS is located.
Źródło:
AGH Drilling, Oil, Gas; 2019, 36, 1; 113-123
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Importance of sonar surveying in the monitoring and operation of natural gas caverns
Autorzy:
Reitze, A.
Krieter, M.
Tryller, H. von
Powiązania:
https://bibliotekanauki.pl/articles/183565.pdf
Data publikacji:
2010
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
natural gas caverns
sonar survey
thermodynamics of natural gas storage
Opis:
It is becoming increasingly important to carry out thermodynamic calculations starting from the very first stage of storage planning and continuing right on up to the actual storage operation in gas caverns. The reason for this is that on the one hand the availability of gas quantities and the efficiency of the storage facilities need to be determined and on the other hand these have to be predicted as reliably and as quickly as possible. History match methods and particularly the predictions (on a daily or hourly basis) of pressures, temperatures and operating gas amounts in relation to the existing storage situation are therefore important tools for the storage operator to enable him to react to short and medium-term market needs. SOCON Sonar Control Kavernenvermessung GmbH recognized the need for and so developed a software package that, based on the SOCON sonar survey in caverns under gas with the accompanying logs, answers the remaining thermodynamic and rock mechanics questions. This provides the cavern operator with the opportunity to increase operational safety and at the same time allows the capacities and performance profiles during injection and extraction to be assessed (history match) and predicted.
Źródło:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie; 2010, 36, 3; 419-430
0138-0974
Pojawia się w:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Natural radioactivity of coastal sediments as tracer in dynamic sedimentology
Autorzy:
Thereska, J.
Powiązania:
https://bibliotekanauki.pl/articles/146496.pdf
Data publikacji:
2009
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
gamma natural radioactivity
coastal sediments
natural tracer
lithology
sediment dynamics
Opis:
Natural radioactivity of coastal sediments could provide interesting information on sediment dynamics. Natural radioactivity measurements were performed in two areas of the Adriatic Sea littoral of Albanian cost, in the gulfs of Durres and Vlora, where complex studies were carried out in the framework of the maintenance of existing Durres harbour and the design of a new harbour in Vlora. Dynamic mapping of the gamma total radioactivity at the sea bottom sediment was carried out using a 2" × 2" NaI probe. Radiometric data were converted to lithological map, and the sand and silt distribution configuration was interpreted in terms of sediment transport. The obtained results have shown that the natural radioactivity of sediments provides qualitative data about the sediment dynamics. This cost-effective method is recommended to be used as complementary to other tracer techniques for sediment transport in coastal engineering investigations.
Źródło:
Nukleonika; 2009, 54, 1; 45-50
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Opodatkowanie dochodów z kapitałów pieniężnych
Autorzy:
Kosidłowska, Anna
Powiązania:
https://bibliotekanauki.pl/articles/630050.pdf
Data publikacji:
2015
Wydawca:
Szkoła Główna Handlowa w Warszawie
Tematy:
natural person capital gains tax, natural persons, state budget revenues
Opis:
The aim of the paper was to present issues related to the natural person capitalgains tax, in particular legal conditions underpinning the tax and issues relatedto the impact of the tax on state budget revenues. Natural person capital gainstax value in Poland was also analyzed. The study covered the period from 2006until 2013.
Źródło:
Kwartalnik Kolegium Ekonomiczno-Społecznego Studia i Prace; 2015, 3, 4; 103-113
2082-0976
Pojawia się w:
Kwartalnik Kolegium Ekonomiczno-Społecznego Studia i Prace
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Czy Gottlob Frege pierwszy zdefiniował liczby naturalne?
Was Gottlob Frege First to Define Natural Numbers?
Hat Gottlob Frege als erster die natürlichen Zahlen definiert?
Autorzy:
Dadaczyński, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/2015917.pdf
Data publikacji:
2002
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
Tematy:
liczby naturalne
definicje liczb naturalnych
natural numbers
definition of natural numbers
Opis:
Powszechnie mówi się, że liczby naturalne po raz pierwszy zdefiniował G. Frege (1884), a niezależnie B. Russell (1903). Artykuł ten, oparty na spostrzeżeniach słynnego badacza twórczości życiowej B. Bolzano, J. Berga, udowadnia, że filozof i matematyk z Pragi już w latach trzydziestych XIX wieku posługiwał się swoją definicją liczb naturalnych - tak zwanych liczb abstrakcyjnych, nienazwanych. Definicja B. Bolzano znajduje się na tej samej linii rozwoju, co koncepcja G. Frege i B. Russella, ponieważ opiera się na koncepcji równości zbiorów. Koncepcja liczb naturalnych B. Bolzano pozostaje nieznana, ponieważ nie oparł on swojej arytmetyki na pojęciach abstrakcyjnych, nienazwanych liczb. Ponadto manuskrypt Pure Numbers został opublikowany dopiero w 1976 roku.
It is commonly thought that natural numbers were first defined by G. Frege (1884), and independently, by B. Russell (1903). This article based on the J. Berg's observations (who was a famous researcher of B. Bolzano's life's work)  proves that the philosopher and mathematician from Prague, as early as the 1830s applied his definition of the natural numbers - the so-called abstract, unnamed numbers. Bolzano's definition follows the same line of development as  the conception of G. Frege and B. Russell because it is based on the concept of equality of sets. Bolzano's concept of natural numbers has remained unknown because he did not base his arithmetic on the concept of abstract, unnamed numbers. In addition, the manuscript Pure Numbers was not published until 1976.
Gewöhnlich wird es behauptet, daß die natürlichen Zahlen zum ersten Male von G. Frege (1884) und unabhängig davon, von B. Russell (1903) definiert wurden. Dieser Artikel, welcher auf den Wahrnehmungen des berühmten Forschers des Lebenswerks von B. Bolzano, J. Berg, basiert, erweist, daß der Philosoph und Mathematiker aus Prag, schon in der dreißiger Jahren des XIX. Jahrhunderts über seine Definition der natürlichen Zahlen − der sogenannten abstrakten, unbenannten Zahlen − verfügt hat. Die Begriffsbestimmung von B.Bolzano steht auf derselben Entwicklungslinie wie die Konzeption von G. Frege und B.Russell, weil sie auf dem Begriff der Gleichzähligkeit der Mengen basiert. Die Konzeption von B.Bolzano, bezüglich der natürlichen Zahlen, ist aber unbekannt geblieben, weil er seine Arithmetik nicht auf dem Begriff der abstrakten unbenannten Zahlen gestützt hat. Außerdem wurde das Manuskript Reine Zahlenlehre bis zum Jahre 1976 nicht publiziert.
Źródło:
Roczniki Filozoficzne; 2002, 50, 3; 241-247
0035-7685
Pojawia się w:
Roczniki Filozoficzne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sign Language – A Real and Natural Language
Autorzy:
Mizak, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/605496.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
Sign language
natural languages
Opis:
We sometimes hear opinions that sign language is not a real or a natural language like English or Polish. In this paper, the views that sign language is not a real or a natural language are considered to be mistaken. The aim of this article, therefore, is to provide evidence in support of the thesis that sign language is as real and as natural a language as spoken languages, such as English or Polish.
Źródło:
Lublin Studies in Modern Languages and Literature; 2011, 35; 50-67
0137-4699
Pojawia się w:
Lublin Studies in Modern Languages and Literature
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Applicability of equations for pressure losses in transmission gas pipelines
Autorzy:
Janusz, P.
Liszka, K.
Łaciak, M.
Smulski, R.
Oiinyk, A.
Susak, O.
Powiązania:
https://bibliotekanauki.pl/articles/298585.pdf
Data publikacji:
2015
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
natural gas
transmission system
Opis:
Transmission pipelines for gas have large a diameter and high pressure. Gas pump stations are built along the pipeline and their main task is to increase gas pressure to the technologically and economically justified level. Determining the exact value of pressure drop in the pipeline is the major problem in gas pipeline transport. The drop of pressure is a result of external and internal frict ion. The pressure can be lowered in the gas pipeline but this depends on the geometric parameters of the latter, i.e. le ngth, inner diameter, full-length profile, quantity and temperature of transmitted gas and its thermodynamic properties. The technical condition of the transmission pipe- line and the character of gas flow in the pipeline have a great infl uence on the pressure variations. A number of mathematical models focus on determining the drop of pressure in a pipeline section. The value of deviations of calculated values from the real data in each mode l strictly depends on the conditions in the pipeline. The aim of this paper is an analysis of applicability ranges of various equations for pressure losses in transmission pipelines.
Źródło:
AGH Drilling, Oil, Gas; 2015, 32, 3; 525-538
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of using project based learning in Natural Gas Engineering
Autorzy:
Duse, D.-M.
Duse, C. S.
Powiązania:
https://bibliotekanauki.pl/articles/298665.pdf
Data publikacji:
2013
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
Natural Gas Engineering
learning
Opis:
This paper sets out to present an application of learning by cooperation in a bachelor study program of Natural Gas Engineering. Starting from the idea that students' abilities to understand new things are enhanced when they are tied to significant problem solving tasks and students are helped to understand why, when and how these facts become relevant competencies, we have organized the didactic activities of the last study year of the bachelor level, specializing in Natural Gas Engineering, using the projects method. The goal was to see how students perceive the efficiency of learning by applying this method and if an increase in learning efficiency has been noticed. Having these goals in mind, the students were organized into groups, each group having the task of presenting a project with a certain theme. Inside the group, roles were cast and then the strategy for doing the project was discussed. The research was done over a period of 3 semesters. In the first semester, traditional teaching was used, while the second and third semesters were dedicated to projects. In the traditional teaching part, students were encouraged to discover critical thinking methods. For this purpose, they were presented with the thinking hats method, the cube, the "I know - I want to know - I have learned" technique etc., but also methods to assist learning (mind map, cluster etc.). Doing the projects also involved presenting and defending them in front of the class, which has led to highlighting the pros and cons of the project. Also, students have received an evaluation questionnaire on evaluating key aspects during the presentation. Teamwork was evaluated by each student team member. The final evaluation of the students was comprised (in various proportions) by the contribution of the students during the semester (as a method of formative evaluation), as well as a final exam (summative evaluation). The general conclusion of applying this method highlights the fact that students have become aware of the pros and cons of their behavior, have gained new motivational support for learning and have managed to increase their performance in the field of Transporting Natural Gas.
Źródło:
AGH Drilling, Oil, Gas; 2013, 30, 1; 57-64
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An analysis of the changes of the composition of natural gas transported in high-pressure gas pipelines
Autorzy:
Janusz, P.
Liszka, K.
Łaciak, M.
Oliinyk, A.
Susak, A.
Powiązania:
https://bibliotekanauki.pl/articles/299187.pdf
Data publikacji:
2015
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
natural gas
transmission system
Opis:
Natural gas is one of the major fuels covering home demand for energy. Natural gas consumption has been observed to systematically increase over the last five years. Intensive works are conducted on the development of the national gas network leading to the diversifi cation of directions and sources of blue gas. Natural gas consists of various components. Its composition depends on the source of origin and has a decisive influence on thermodynamic and hydraulic properties. The content of heavy hydrocarbon gases increases the calorific value of the gaseous fuel, whereas the high content of inorganic components lowers the amount of energy obtained in the course of natural gas combustion, and environmentally hazardous chemical compounds are formed. As far as gas transport is concerned, too high content of heavy hydrocarbon gases (propane, butane, pentane) is disadvantageous. In high pressure conditions the C3-C5 class gases change to a liquid phase. This results in the change of the calorific value, lower hydraulic efficiency of the pipeline diameter and potentially faster corrosion processes on the inner surface of the pipeline.This paper is aimed at presenting results of changes of natural gas composition in a function of distance at which the fuel is transported. The respective analyses will be conducted with the use of analytical methods and commercial pipeline simulators.
Źródło:
AGH Drilling, Oil, Gas; 2015, 32, 4; 713-722
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Historyczne drzewa Puszczy Bukowej pod Szczecinem
Historical trees of the Beech Forest near Szczecin
Autorzy:
Jankowski, Krzysztof
Mincel, Marta
Powiązania:
https://bibliotekanauki.pl/articles/1186031.pdf
Data publikacji:
2020-02-19
Wydawca:
Polskie Towarzystwo Dendrologiczne
Tematy:
pomnik przyrody
natural monument
Opis:
Puszcza Bukowa pod Szczecinem stanowi niezwykle cenny pod względem przyrodniczym i historycznym obszar, na którym w roku 1991 ustanowiono Szczeciński Park Krajobrazowy „Puszcza Bukowa”. Na jego terenie i w otulinie można spotkać sędziwe okazy drzew, które ze względu na swoje rozmiary, a niekiedy także okoliczności posadzenia, stanowią istotny element dziedzictwa przyrodniczego i historycznego tego terenu. W latach 2017–2018 przebadano dwanaście historycznych drzew – osiem egzemplarzy dębu szypułkowego (Quercus robur) oraz po jednym: lipy drobnolistnej (Tilia cordata), holenderskiej (T. ×europaea), szerokolistnej (T. platyphyllos) i cisa pospolitego (Taxus baccata). Przeprowadzono szczegółową analizę źródeł historycznych zawierających informacje o badanych drzewach, opisano ich parametry dendrologiczne oraz oceniono stan zdrowotny według skal stosowanych we współczesnej dendrologii. Najgrubszym okazem z badanych drzew była lipa szerokolistna nazywana Lipą św. Ottona, o obwodzie 875 cm. Stan zdrowotny większości drzew był zadowalający pomimo dużej konkurencji w drzewostanach leśnych. Poza dwoma przypadkami w pobliżu drzew nie stwierdzono tablic informacyjnych, które przedstawiałyby walory historyczne i przyrodnicze okazów.
The Beech Forest near Szczecin is an extremely valuable area in terms of nature and history, where in 1991 the Szczecin Landscape Park ‘Puszcza Bukowa’ was established. In the park and a separate protection area around it, you can find old specimens of trees, which due to their size and sometimes the circumstances of planting are an important element of the natural and historical heritage of this area. In 2017–2018, twelve historic trees were examined: eight specimens of pedunculate oak (Quercus robur), one small-leaved lime (Tilia cordata), one common lime (T. ×europaea), one large-leaved lime (T. platyphyllos) and one common yew (Taxus baccata). A detailed analysis of historical sources containing information about the examined trees, their dendrological parameters and health status according to scales used in modern dendrology was carried out. The thickest specimen among the examined trees was the large-leaved lime called the Linden of St. Otton, the circumference of which was 875 cm. The health condition of most trees was satisfactory despite the high competition in forest stands. With the exception of two specimens, in the vicinity of the trees, there were no information boards showing the historical and natural values of the specimens being the subject of the research.
Źródło:
Rocznik Polskiego Towarzystwa Dendrologicznego; 2019, 67; 69-79
2080-4164
2300-8326
Pojawia się w:
Rocznik Polskiego Towarzystwa Dendrologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Two criticisms of natural theology
Autorzy:
Gębura, Błażej
Powiązania:
https://bibliotekanauki.pl/articles/690676.pdf
Data publikacji:
2014
Wydawca:
Copernicus Center Press
Tematy:
theism
natural theology
God
Opis:
The article aims at considering two general criticisms often formulated against the natural theology. First criticism is based on the thesis that the conclusions of the natural theology are not adequate with the religious beliefs of non-philosophers. It is widely known as opposition between God of Religion and God of Philosophers. One can find that argument in the writings of Blaise Pascal. I’m arguing for the thesis, that the natural theologian cannot fulfill the criteria given by the proponents of this argument. This is because the argument of the natural theology cannot contains the premises taken from the Revelation. If the argument of the natural theology would contain the premises taken from the Revelation, then it would be the argument of religion. But philosopher of religion (natural theologian) can’t do this, if he wants to formulate an philosophical argument. The second criticism is based on the notion of a rational person. In the light of this argument, the natural theology is successful only, if every rational person will accept the conclusion “God exist”. I’m trying to show that there is no philosophical argument that can guarantee it’s acceptance by some rational persons. The acceptance of the conclusion of the argument of the natural theology is a matter of personal decision. There is no logical argument, which can “force” rational persons (rational subjects) to accept it’s conclusion. But if this is true, the arguments for the existence of God are no worse than other philosophical arguments.
Źródło:
Zagadnienia Filozoficzne w Nauce; 2014, 54; 127-154
0867-8286
2451-0602
Pojawia się w:
Zagadnienia Filozoficzne w Nauce
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Filozofia przyrody po niemiecku
Natural Philosophy in German Style
Autorzy:
Piotrowski, Robert
Powiązania:
https://bibliotekanauki.pl/articles/553304.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Zielonogórski. Instytut Filozofii
Tematy:
filozofia przyrody
natural philosophy
Opis:
Recenzja książki: Hans-Dieter MUTSCHLER, Wprowadzenie do filozofii przyrody. Wybrane zagadnienia, przeł. Józef Bremer, Wydawnictwo WAM, Kraków 2005, s. 238.
Review of: Hans-Dieter MUTSCHLER, Wprowadzenie do filozofii przyrody. Wybrane zagadnienia, przeł. Józef Bremer, Wydawnictwo WAM, Kraków 2005, s. 238.
Źródło:
Filozoficzne Aspekty Genezy; 2012, 9; 271-276
2299-0356
Pojawia się w:
Filozoficzne Aspekty Genezy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Soils in the memory of world nations
Autorzy:
Pozniak, S.P.
Havrysh, N.S.
Powiązania:
https://bibliotekanauki.pl/articles/971566.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
soil
chernozem
natural monuments
Opis:
The most important feature of the primary accumulation of different facts about the properties of soils, their fertility and ways of cultivation is the human awareness of soil as the environment of growth and development of plants, as well as the existence of a large variety of soils and the need for their differentiated use in the agriculture and different taxation systems. Monuments are important in the case of careful treatment and conservation of natural objects, including soils. Monuments to soils have been preserved in ancient writings – Egyptian papyri and steles, chronicles, maps, etc. Taking into account the importance of chernozem for nature and for humans as well, a number of monuments, scientifi works, fition, or poems are devoted to this particular type of soil. There are also announced “years of chernozem”, indicating it as the standard of excellence in the world soils. Analysis of the development of soil science has shown that it has a long history, from ancient times to the present day. The main idea is that soil plays an important role both for nature and humanity. An important task of modern society is a reasonable approach towards the soil and preservation of natural soil objects.
Źródło:
Polish Journal of Soil Science; 2019, 52, 1; 13-24
0079-2985
Pojawia się w:
Polish Journal of Soil Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gaz ziemny na świecie, w Europie i w Polsce : zasoby, handel, dywersyfikacja
Natural gas in the world, Europe and Poland : reserves, trade and diversification
Autorzy:
Rychlicki, S.
Siemek, J.
Powiązania:
https://bibliotekanauki.pl/articles/299809.pdf
Data publikacji:
2006
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
gaz ziemny
natural gas
Opis:
W artykule autorzy przedstawili sytuację w zakresie handlu gazem ziemnym oraz jego zasobów w świecie. Pokazano także prognozy dla przemysłu gazowniczego z podziałem na poszczególne regiony. Oprócz tego autorzy wskazali kierunki dywersyfikacji dostaw gazu do Polski. Ponadto przedstawiono wykorzystanie gazu ziemnego i węgla do produkcji energii elektrycznej.
In the paper are presented the actual situation in natural gas trade and gas reserves. Also are shown the prognosis in gas industry in different world's regions. Else it the authors indicate the direction of gas supply diversification to Poland. The utilization of natural gas and coal in the electric power station is also presented.
Źródło:
Wiertnictwo, Nafta, Gaz; 2006, 23, 2; 715-732
1507-0042
Pojawia się w:
Wiertnictwo, Nafta, Gaz
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of the supporting spring stiffness on the vibrations and stability of geometrically non-linear column
Autorzy:
Przybylski, J.
Powiązania:
https://bibliotekanauki.pl/articles/280637.pdf
Data publikacji:
2001
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
natural vibrations
divergence
flutter
Opis:
In the paper, the non-linear vibrations and stability of a compound tworod column with different bending rigidities of its members are investigated. The support of the column is pinned and has a rotational spring the stiffness of which can be either constant or dependent on the applied load. A perturbation technique is chosen to solve the problem. As the column is loaded by a partially follower load it loses its stability via divergence or flutter. For the case of the nonconservative load an adjoint system is formulated for finding the amplitude-frequency relation. The linear part of the natural frequency for adjoint systems is the same, but the non-linear terms differ for each system because they depend on the vibration modes. The support stiffening may lower the critical load of the column.
Wpływ sztywności sprężyny podpierającej geometrycznie nieliniową kolumnę na jej drgania i stateczność. W pracy analizowane są drgania i stateczność kolumny złożonej z dwóch prętów i podpartej na sprężynie rotacyjnej, której sztywność jest stała lub zależna od przyłożonego obciążenia zewnętrznego. Ponieważ siła zewnętrzna jest częściowo śledząca, to kolumna może tracić stateczność przez dywergencję lub flatter. Celem znalezienia relacji amplituda-częstość dla obciążenia niezachowawczego znaleziono układ sprzężony. Wykazano, że liniowy składnik rozwinięcia częstości drgań obu układów jest taki sam, natomiast składowe nieliniowe są różne. Przeprowadzono badania numeryczne, na podstawie których stwierdzono m.in., że wzrost sztywności sprężyny podpierającej kolumnę może obniżać wartość jej siły krytycznej.
Źródło:
Journal of Theoretical and Applied Mechanics; 2001, 39, 1; 129-152
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterization of natural gas by Raman spectroscopy and its application for in-situ measurements
Autorzy:
Dąbrowski, K.
Kuczyński, S.
Włodek, T.
Smulski, R.
Barbacki, J.
Powiązania:
https://bibliotekanauki.pl/articles/298619.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
natural gas
Raman spectroscopy
Opis:
Gaseous hydrocarbons and nitrogen mixtures are characterized with an own designed portable Raman system equipped with a high pressure autoclave and fiber-optic probe. Backscattered radiation is collected through a sapphire window with a probe and transferred to the spectrometer. Samples are measured for a set of pressures in the range of 1–150 bar in ambient temperature. Measurement conditions are set to maintain an one-phase system. Spectra are collected in a wide range of wavenumber 350–3500 cm–1. Initial composition of measured samples is measured be means of gas chromatography. Design computer algorithms automatically detects and characterizes Raman bands for given species and their peak areas. The influence of both pressure and concentration of a given element on given band position and area are demonstrated.
Źródło:
AGH Drilling, Oil, Gas; 2018, 35, 1; 125-138
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An Alternative Natural Deduction for the Intuitionistic Propositional Logic
Autorzy:
Ilić, Mirjana
Powiązania:
https://bibliotekanauki.pl/articles/749978.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
natural deduction
intuitionistic logic
Opis:
A natural deduction system NI, for the full propositional intuitionistic logic, is proposed. The operational rules of NI are obtained by the translation from Gentzen’s calculus LJ and the normalization is proved, via translations from sequent calculus derivations to natural deduction derivations and back.
Źródło:
Bulletin of the Section of Logic; 2016, 45, 1
0138-0680
2449-836X
Pojawia się w:
Bulletin of the Section of Logic
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
ARISTOTLE ON NATURAL JUSTICE
Autorzy:
Simpson, Peter
Powiązania:
https://bibliotekanauki.pl/articles/507324.pdf
Data publikacji:
2014
Wydawca:
International Étienne Gilson Society
Tematy:
justice
natural justice
Aristotle
Opis:
The article discusses the problem of natural justice which has been considered by Aristotle in his (1) Nicomachean and Eudemian Ethics and (2) Magna Moralia. In his Nicomachean and Eudemian Ethics Aristotle says of natural justice that it is changeable and not the same everywhere. The implication seems to be that no action, not even murder, is always wrong. But, as is evident especially from his Magna Moralia, Aristotle distinguishes justice into the “what” (equality), the “in what” (proportion between persons and things), and the “about what” (what things are exchanged with which persons). The article concludes that Aristotle allows for variability only in the “about what,” while in the “what” and the “in what” he allows for no variability.
Źródło:
Studia Gilsoniana; 2014, 3; 367-376
2300-0066
Pojawia się w:
Studia Gilsoniana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Inwestycje na obszarach chronionych – racjonalne kształtowanie przestrzeni w województwie podlaskim
Popularisation of Biofuels in Poland – Effectiveness of Public Administration Activities
Autorzy:
Ambrozik, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/416472.pdf
Data publikacji:
2015-04
Wydawca:
Najwyższa Izba Kontroli
Tematy:
Spatial Management
natural environment
investments in the areas subject to natural protection
Opis:
At the time of raising environmental protection standards, the economic development makes it necessary to use energy coming from sources other than oil and gas. Biofuels are an alternative here. Thanks to biofuels, carbon dioxide emissions can be reduced in a natural way. The article attempts to present and assess the activities of the public administration undertaken to make biofuels derived from plants more popular in Poland. These activities have been examined during the audit on the use of biofuels and bio-components in transportation. The authors of the article, on the basis of the audit findings and literature related to the topic, present why the forecast results have not been achieved, and the role of performance auditing.
Źródło:
Kontrola Państwowa; 2015, 60, 2 (361); 64-73
0452-5027
Pojawia się w:
Kontrola Państwowa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Methods of assessment of the natural environment in examining the relationship between its diversity, values and tourism in Western Australia’s National Parks
Autorzy:
Bednarek, Małgorzata
Miłaszewska, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2032509.pdf
Data publikacji:
2006-06-01
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
diversity of the natural environment
natural values
tourism
Western Australia
national parks
Opis:
In 2004, the author studied the impact of the diversity of the environment and natural values in national parks of Western Australia on the number of tourists visiting them. The research indicates that the highest correlation is between natural values and number of tourists, a smaller one is between the diversity of the environment and natural values and the lowest correlation is between the diversity of the environment and the number of tourists. Such studies reąuire proper methods for evaluation of the natural environment. This paper discusses differences between the two main methods. The first, which describes diversity of the environment in national parks, is based on the evaluation made for the whole continent, where six main features of the environment were measured in the grid of sąuares. The natural values were studied with a greater accuracy on the basis of the descriptions and maps concerning the parks' territory. Attractiveness in respect to natural values is presented by the sum of points. Each park received from 0 to 2 points for each of the 18 natural values.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2006, 12; 261-268
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Uwarunkowania rozwoju bazy surowcowej kruszyw naturalnych w regionie Małopolsko-Podkarpackim
Development conditions of the resource base of natural aggregate in the region of Małopolska and Podkarpacie
Autorzy:
Kozioł, W.
Machniak, Ł.
Łochańska, D.
Powiązania:
https://bibliotekanauki.pl/articles/170754.pdf
Data publikacji:
2011
Wydawca:
Poltegor-Instytut Instytut Górnictwa Odkrywkowego
Tematy:
kruszywo naturalne
górnictwo kruszyw naturalnych
Małopolska
Podkarpacie
natural aggregates
natural aggregates mining
Opis:
W Małopolsce i na Podkarpaciu wydobywa się rocznie prawie 25 mln ton kruszyw naturalnych, w tym około 18 mln Mg kruszyw żwirowo-piaskowych. W artykule przedstawiono charakterystykę górnictwa kruszyw naturalnych uwzględniającą stan obecny oraz perspektywę rozwoju branży. Zarysowane zostały również problemy związane z konfliktem lokalizacji udokumentowanych złóż względem obszarów przyrodniczo cennych.
In Małopolska and Podkarpacie almost 25 million tons of natural aggregate is mined annually, including about 18 tons of sand-gravel aggregate. The article presents characteristics of natural aggregate mining including current state and prospects for future development. Problems connected with conflicts of the localization of evidenced deposits in respect of naturally valuable areas were also outlined.
Źródło:
Górnictwo Odkrywkowe; 2011, 52, 6; 19-25
0043-2075
Pojawia się w:
Górnictwo Odkrywkowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
LA OFERTA NATURAL Y LA DEMANDA SOCIAL: UN ESPACIO DE POSIBILIDADES PARA EL DESARROLLO SOSTENIBLE. UN ESTUDIO DE CASO
The Natural Offer and the Social Demand: A Space of Possibilities for Sustainable Development. A Case Study
Autorzy:
SERNA MENDOZA, Ciro Alfonso
Powiązania:
https://bibliotekanauki.pl/articles/486367.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
Tematy:
Río Porce
oferta natural
demanda social
River Porce
natural supply
social demand
Opis:
El presente trabajo se ha propuesto como objetivo fundamental: explorar y analizar de una manera crítica la oferta natural y la demanda social para la cuenca del río Porce, municipio de Amalfi-Antioquia; caso de estudio vereda Mangos Calentura. De igual manera como objetivos específicos: 1. Develar las percepciones e imaginarios sociales y culturales que se dan en la cuenca del río Porce-Municipio de Amalfi; caso de estudio vereda Mangos Calentura y 2. Explicar y definir cuáles son los sistemas simbólicos, organizacionales, tecnológicos y de conocimiento que se dan en la cuenca del río Porce-Municipio de Amalfi, Vere¬da Mangos Calentura, como posibilitadores del Desarrollo Sostenible. Se ha tomado como punto de referencia esta región debido a que en ella se dan muchos conflictos ambientales y socioeconómicos, que dificultan el desarrollo de una región con recursos estratégicos para el Departamento de Antioquia, y Colombia en general. En esta área hay un sector de minería que está generando grandes problemas socioambientales que se constituyen en externalidades negativas para la región. En esta cuenca se dan diferentes tipos de usos del suelo entre ellos agrícola, pecuario, protector, productor y urbano. Es una zona con un gran potencial minero asociado con materiales para la construcción y los minerales preciosos como el oro. El río Porce a lo largo de la historia ha tenido varias intervenciones económicas, las actividades más sobresalientes son los proyectos hidroeléctricos de Empresas Públicas de Medellín, cuyos estudios de aprovechamiento se hicieron desde 1974 y 1976. En la actualidad se encuentra en operación Porce II y Porce III, el proyecto hidroeléctrico Porce IV se encuentra suspendido. Es necesario, entonces, emprender acciones a escala local que permitan la interrelación entre la oferta natural y la demanda social, es decir entre los procesos naturales y los procesos humanos, para así garantizar relaciones de sostenibilidad tanto en el presente como para el futuro
This work has been proposed as main objective to explore and analyze critically the Natural Supply and Social Demand for Porce river basin, municipality of Amalfi-Antioquia; case study Mangos Calentura sidewalk. Similarly as Specific Objectives: 1. Unveiling perceptions and imaginary social and cultural rights that occur in the basin of the river Porce-Municipality Amalfi; case study Mangos Calentura sidewalk; 2. Explain and define what organizational, technological knowledge and symbolic systems, which occur in the basin of Porce-Municipality of Amalfi, Mangos Calentura, as enablers of sustainable development river. It has been taken as a benchmark this region because there are many environmental and socioeconomic conflicts which hinder the development of a region with strategic resources for the Department of Antioquia, and Colombia in general are given. In this area there is a mining sector that is generating great socio-environmental problems that constitute negative externalities for the region. In this basin different types of land uses including agriculture, livestock, protector, producer and urban are given. It is an area with a large mining potential associated with building materials and precious minerals like gold. The Porce river throughout history has had several economic interventions, the most outstanding activities are hydroelectric projects Empresas Publicas de Medellin (Public Companies of Medellin) whose studies use were made from 1974 to 1976. He is currently in operation Porce II and Porce III, the Porce IV hydroelectric project is suspended.
Źródło:
Revista del CESLA. International Latin American Studies Review; 2016, 19; 105-124
1641-4713
Pojawia się w:
Revista del CESLA. International Latin American Studies Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wiedza polskich studentów o środowisku naturalnym i jego ochronie – porównanie studentów różnych kierunków i uczelni
The knowledge of Polish students about the natural environment and its protection – comparison between students of different faculties
Autorzy:
Ciążela, A.
Powiązania:
https://bibliotekanauki.pl/articles/326525.pdf
Data publikacji:
2018
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
studenci
środowisko naturalne
zanieczyszczenie środowiska
ochrona środowiska w Polsce
students
natural environment
pollution of natural environment
protection of natural environment
Opis:
Celem artykułu jest prezentacja wyników badań na temat wiedzy polskich studentów dotyczącej środowiska naturalnego, jego stanu, przyczyn i skutków zanieczyszczenia oraz sposobów ochrony. Badania przeprowadzono w 2016 roku na grupie 642 osób, studentów różnych wydziałów i uczelni. Uczestnicy wykazali największą wiedzę na temat sposobów ochrony środowiska, znajomość stanu środowiska i jego przyczyn okazała się jednak mniej powszechna. Grupa została dobrana tak, by możliwe było również porównanie wiedzy osób studiujących różne kierunki studiów. Z rezultatów badania wynika, że różnice w poziomie wiedzy między studentami różnych kierunków są stosunkowo niewielkie.
The aim of the article is to present the results of a study concerning the knowledge of polish students about the natural environment and its condition, the reasons and the consequences of the pollution, and the methods of protection of the environment. The study was conducted in 2016. The research group consisted of 642 students of different faculties and universities. The participants demonstrated the knowledge about methods of protection of environment. The level of the knowledge about the condition of natural environment, the reasons and the consequences of the pollution appeared to be lower. The aim of the selection of the participants was to compare the results of students of different faculties. The results of the study show, that the differences between students of different faculties are relatively small.
Źródło:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska; 2018, 123; 73-88
1641-3466
Pojawia się w:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Komin słoneczny – studium przypadku
Solar chimney – a case study
Autorzy:
Nakielska, M.
Powiązania:
https://bibliotekanauki.pl/articles/372608.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
wentylacja grawitacyjna
komin słoneczny
wspomagania wentylacji
natural ventilation
solar chimney
assisted natural ventilation
Opis:
Celem polityki państw na świecie jest zmniejszenie energochłonności oraz zwiększenie udziału odnawialnych źródeł energii w wielu gałęziach przemysłu. Dotyczy to także budownictwa. Poszukuje się zatem nowych rozwiązań materiałowych i technologicznych m.in. z zakresu ogrzewania, chłodzenia czy wentylacji. W artykule przedstawiono problematykę systemów wentylacji, w których zastosowano komin słoneczny. Przed-stawiono na konkretnym przykładzie sposób funkcjonowania wentylacji grawitacyjnej z kominem słonecznym.
The policy of countries in the world, is reduce energy intensity and in-creasing the share of renewable energy sources in many industries. This also applies to the construction industry. Therefore looking for new materials and technology, heating, cooling and ventilation. The article presents the problem of ventilation systems that use solar chimney. The article presents the problem of ventilation systems, using solar chimney, shown in the example of the functioning of the natural ventilation of the solar chimney.
Źródło:
Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski; 2015, 160 (40); 88-95
1895-7323
Pojawia się w:
Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The natural transformations between r-th order prolongation of tangent and cotangent bundles over Riemannian manifolds
Autorzy:
Plaszczyk, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/746994.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
Riemannian manifold
higher order prolongation of a vector bundle
natural tensor
natural operator
Opis:
If (M, g) is a Riemannian manifold then there is the well-known base preserving vector bundle isomorphism TM → T*M given by v → g(v, –) between the tangent TM and the cotangent T*M bundles of M. In the present note first we generalize this isomorphism to the one JrTM → JrT*M between the r-th order prolongation JrTM of tangent TM and the r-th order prolongation JrT*M of cotangent T*M bundles of M. Further we describe all base preserving vector bundle maps DM(g) : JrTM → JrT*M depending on a Riemannian metric g in terms of natural (in g) tensor fields on M.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska, sectio A – Mathematica; 2015, 69, 1
0365-1029
2083-7402
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska, sectio A – Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka, właściwości, perspektywy i trudności stosowania niebieskich barwników naturalnych do barwienia produktów spożywczych
Characterization, properties, prospects and difficulties in the use of blue natural dyes for food colouring
Autorzy:
Krępska, M.
Lasoń-Rydel, M.
Jagiełło, J.
Powiązania:
https://bibliotekanauki.pl/articles/412740.pdf
Data publikacji:
2016
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Skórzanego
Tematy:
barwniki naturalne
Gardenia blue
Fikocyjanina
antocyjan
Indygo naturalne
natural dyes
Phycocyanin
Natural indigo
Opis:
Wskutek zmian na rynku barwników spożywczych, w ostatnim czasie wzrasta zainteresowanie barwnikami pochodzącymi z naturalnych źródeł. Barwniki syntetyczne koloru żółtego, pomarańczowego, czy czerwonego łatwo jest zastąpić barwnikami naturalnymi o wystarczającej trwałości. Natomiast zamiana barwników syntetycznych w kolorze niebieskim na barwniki naturalne staje się już większym wyzwaniem dla producentów żywności. W przyrodzie występuje kilka niebieskich barwników naturalnych, jednak nie jest to barwa występująca powszechnie. Niniejszy artykuł zawiera charakterystykę kilku niebieskich barwników naturalnych, z uwzględnieniem ich właściwości tj. rozpuszczalności, odporności na działanie światła, temperaturę, czy pH środowiska. Wszystkie te czynniki jak również istniejące uregulowania prawne mogą determinować ich użycie jako barwników spożywczych.
Interest of natural dyes have been increasing for the few years. Synthetic colors like yellow, orange or red is easy to replace by natural dyes of sufficient stability. By replacing synthetic colors in blue on natural dyes it is becoming a greater challenge for food producers. In nature, there are several natural-blue dyes but this is not a commonly occurs colour. This article contains characteristics of several blue natural dyes, with their properties, ie. solubility, lightfastness, temperature or pH of the environment. All these factors as well as existing legislation may determine their use as food colorants.
Źródło:
Technologia i Jakość Wyrobów; 2016, 61; 63-68
2299-7989
Pojawia się w:
Technologia i Jakość Wyrobów
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
O prawie cywilnym i karnym od Wieku Światła i Rozumu do spustoszonego stulecia
Autorzy:
Lityński, Adam
Powiązania:
https://bibliotekanauki.pl/articles/621933.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet w Białymstoku. Wydawnictwo Uniwersytetu w Białymstoku
Tematy:
Utopias, Ravaged Century, natural law
Opis:
In the 18th century the rule of ratio was supposed to rebuild the world and to make an order in it. The philosophers followed many illusions then. One of them was the belief that the ideal law is almighty and it may give happiness to the mankind. The revolution was also supposed to be a great project for the mankind. Liberty, Equality, Property (by Jan Baszkiewicz) were placed on revolutionary banners. Liberty, equality, property are the most important natural laws, which were supposed to be transformed into codes. The 20th century has inherited many different ideas, also utopian – coming from the Age of Enlightenment. The starting point – as usual in the utopias – was to destroy the old order, especially legal order. Two tragic totalitarian systems tried to realize these utopias. The 20th century is called the Ravaged Century (Robert Conquest). But when the last totalitarian state in Europe fell down in the end of this century, we returned to the Enlightenment roots in penal and civil law.
Źródło:
Miscellanea Historico-Iuridica; 2008, 6; 13-25
1732-9132
2719-9991
Pojawia się w:
Miscellanea Historico-Iuridica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The sorption capability of halloysite
Autorzy:
Skibińska, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/763919.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
natural mineral
halloysite
sorption
aluminosilicate
Opis:
Halloysite is commonly occuring in Poland a natural mineral which, due to its structure is very popular among researchers. First of all, the large number of sorption areas and their various selectivity makes the material capable of adsorbing the compounds of different nature at the same time. As a result, there is a lot of possible applications. In addition, ease of functionalization of the surface of the material increases its sorption capacity and makes its more attractive. 
Źródło:
Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia; 2017, 72, 1
2083-358X
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Role of underground gas storage in the EU gas market
Autorzy:
Janusz, P.
Kaliski, M.
Szurlej, A.
Powiązania:
https://bibliotekanauki.pl/articles/299269.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
natural gas
underground gas storage
Opis:
One of the main intentions of the European Union is to create common and liberalizated market of natural gas in Europe. Actions has been taken in this area for a few years, however achived effects do not reach the aims that were assumed at the beginning. The quantity of natural gas consumption in the European Union during last years is characterized by a declining tendency (decreasing usage of natural gas in power sector, higher temperature during autumn and winter season also infulences on limiting of natural gas demand), in 2012 the consumption was forming on the level of 444 billion m3, and for example in 2008 it amounted to 497 billion m3. The regulations concerning the natural gas market embrace all of the elements which have an impact on building consolidated and liberalizated market, it means: transfer, distribution and LNG, storage. The authors of this article wants to draw one's attention to the particular role of underground gas storages and depict change of the tasks, which they have to fulfill on the liberalizating market of natural gas in Europe (ie. Price arbitration). The purpose of this article is to presentthe current situation on the market of storage services, which means available storage capacities, the level of their usage and plans regarding extension and constructing of new capacities.
Źródło:
AGH Drilling, Oil, Gas; 2014, 31, 1; 11-23
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The acoustic excitation of newly-formed bubbles
Autorzy:
Deane, G.
Czerski, H.
Stokes, D.
Powiązania:
https://bibliotekanauki.pl/articles/331506.pdf
Data publikacji:
2008
Wydawca:
Polskie Towarzystwo Akustyczne
Tematy:
gas bubbles
hydroacoustics
natural frequency
Opis:
Gas bubbles in water act as oscillators with a natural frequency inversely proportional to their radius and a quality factor determined by thermal, radiation, and viscous losses. Newly-formed gas bubbles are excited into breathing mode oscillations immediately after creation, causing them to radiate a pulse of sound. Although the linear dynamics of spherical gas bubbles are well-understood, the mechanism driving the sound production has not been unambiguously identified. Using bubbles released from a nozzle as a model system, it can be shown that sound production is consistant with the rapid change in volume associated with the collapse of an air neck formed immediately after bubble pinch-off. The model is able to adequately describe the production of sound by bubbles released from a nozzle, and can also explain some of the acoustic properties of bubbles fragmenting in fluid turbulence. Laboratory experiments and model calculations of the mechanism are presented. [Work supported by ONR and NSF].
Źródło:
Hydroacoustics; 2008, 11; 71-78
1642-1817
Pojawia się w:
Hydroacoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling the location and routing problem for the distribution of liquefied natural gas
Autorzy:
Chłopińska, Ewelina
Gucma, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/320657.pdf
Data publikacji:
2019
Wydawca:
Polskie Forum Nawigacyjne
Tematy:
liquid natural gas
distribution
routing
Opis:
Programming methods, such as dynamic heuristic search or search and limit techniques are used for solving the problems of routing. Many of the problems to be solved require huge computing effort, some of them are NP-hard. Other optimization algorithms that may be used for solving vehicle routing problems are methods based on genetic algorithms, neural networks and ant algorithms. The problem of LNG distribution system is closely related to the problem of route planning. These problems are characterised by a simple definition of the problem, unlike finding the solution. Finding the optimal outcome for a great number of points is a hard and work-consuming task. Genetic algorithms are an alternative for the methods most often used so far.
Źródło:
Annual of Navigation; 2019, 26; 59-63
1640-8632
Pojawia się w:
Annual of Navigation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamics of thermally activated shape memory alloy reinforced laminated beams
Dynamika termicznie uaktywnianej belki laminowanej wzmocnionej włóknami z pamięcią kształtu
Autorzy:
Pietrzakowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/281096.pdf
Data publikacji:
1998
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
laminate
thermal activation
natural frequencies
Opis:
A way of use of shape memory alloy (SMA) fibers for dynamics response modification of laminated beams is presented in the paper. The considered concept of adaptive control is based on the ability to change the Young modulus during a temperature activated, reversible, martenstic transition that is specific to SMAs. It is assumed that the laminate is midplane symmetric and the corresponding layers of the same fiber orientation are activated simultaneously, and the SMA fibers can freely elongate in the matrix. A cantilever laminated beam with mass distributed on its free edge is subject to numerical analysis. Due to the quasi-steady one-dimensional model of heat conduction, martensite fraction and natural frequency time relations for the phase transition of SMA have been obtained. The influence of temperature on natural frequencies of the system has been analysed for some different locations of activated plies and directions of SMA fibers. The frequency response functions varying with the material phase transformation for a harmonic load acting on the free end of the beam have also been presented.
W pracy przedstawiono zastosowanie włókien ze stopu z pamięcią kształtu (SMA) do modyfikacji właściwości dynamicznych belek laminowanych. Koncepcję adaptacyjnego sterowania oparto na unikalnej zdolności stopów SMA do wyraźnej zmiany wartości modułu Younga w procesie odwracalnej przemiany martenzytycznej wywołanej temperaturą. Założono, że warstwy laminatu są ułożone i uaktywniane symetrycznie względem powierzchni środkowej, a włókna SMA mogą swobodnie odkształcać się w osnowie. Symulacja numeryczna dotyczy belki laminowanej utwierdzonej wzdłuż jednego brzegu, z masą równomiernie rozłożoną na swobodnym, przeciwległym brzegu. Zgodnie z przyjętym stacjonarnym, jednowymiarowym modelem przewodnictwa cieplnego, wyznaczono przebiegi czasowe temperatury i zawartości martenzytu we włóknach SMA, oraz przebiegi podstawowej częstości własnej w zakresie przemiany fazowej. Zbadano wpływ temperatury na częstości własne zmieniając położenie warstw uaktwnianych a także kierunek ułożenia włókien SMA. Zakładając wymuszenie harmoniczne działające na swobodny brzeg belki, wyznaczono charakterystyki amplitudowo-częstotliwościowe odpowiadające pełnemu zakresowi transformacji fazy materiałowej.
Źródło:
Journal of Theoretical and Applied Mechanics; 1998, 4; 879-893
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A comparison of burning characteristics of iso-octane and ethanol fuels in an optical SI engine
Autorzy:
Moxey, B.
Cairns, A.
Zhao, H.
Powiązania:
https://bibliotekanauki.pl/articles/242661.pdf
Data publikacji:
2013
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
ethanol
natural light imaging
isooctane
Opis:
Over the next few decades the automotive industry will be faced with a number of challenging decisions as the world’s supply of oil reduces and the global population increases beyond 7 billion. These factors have driven some researchers to look at blending fossil fuels with alternatives such as crop-produced alcohols (or so-called biofuels). The currently reported study was concerned with the combustion characteristics of ethanol-isooctane blended fuels in a specially designed, single cylinder, spark ignition research engine equipped with full bore overhead optical access. The testing was undertaken using port fuel injection (PFI) and was focused on the behaviour of differing ethanol concentrations under varied internal exhaust gas re-circulation levels (IEGR). Simultaneous high speed imaging and in-cylinder pressure data analysis was used to understand the fundamental influence of varying ethanol content on turbulent flame propagation and subsequent mass burning. The resulting images were analysed looking at the speed of the advancing flame and the shape factor of the burning velocity. The initial evidence suggested that under the moderate speeds and loads tested, poor charge mixture preparation associated with ethanol was leading to fast but unstable burn rates. This could be avoided and combustion improved by using increased valve overlap settings, with the hot residuals entering the intake port aiding the full evaporation of the fuel.
Źródło:
Journal of KONES; 2013, 20, 2; 299-305
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Natural first order Lagrangians for immersions
Autorzy:
Konderak, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/1294257.pdf
Data publikacji:
1998
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
natural Lagrangians
Riemannian immersions
jets
Opis:
We define natural first order Lagrangians for immersions of Riemannian manifolds and we prove a bijective correspondence between such Lagrangians and the symmetric functions on an open subset of m-dimensional Euclidean space.
Źródło:
Annales Polonici Mathematici; 1998, 69, 3; 207-215
0066-2216
Pojawia się w:
Annales Polonici Mathematici
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Knowledge of young women concerning the impact of natural feeding on the growth and state of health of a baby
Autorzy:
Trojanowska, Alina
Brodowicz-Król, Magdalena
Trojanowska, Paulina
Powiązania:
https://bibliotekanauki.pl/articles/990868.pdf
Data publikacji:
2017
Wydawca:
Instytut Medycyny Wsi
Tematy:
natural feeding
young women
knowledge
Opis:
Introduction. Proper nutrition in childhood has a huge significance for the optimal physical and psychical growth and good state of health of a baby. Natural feeding is admittedly the healthiest method of feeding infants. In spite of increased knowledge about the short and long-term benefits of feeding babies with human milk, the percentage of infants nourished only by breastfeeding is still too low. Knowledge about the health benefits of breast milk should be spread among young women. Objective. The aim of the study was to attempt to discover how much knowledge young women have about the impact of natural feeding on the growth and state of health of a baby, as well as estimating the need for education in this area. Materials and method. Questionnaire study conducted in 2013 among 155 young women (average age 25.43±5.98 years) in Poland and in Belgium. Results. Own studies show that natural feeding still needs promotion and support. Knowledge about this among respondents varied and was incomplete. Often, they did not know all the benefits of natural feeding. The majority of respondents were aware that breastfeeding influenced the growth and health of the baby, but they did not have full knowledge about it. The respondents also did not have sufficient knowledge about the advantages of natural feeding in subsequent adult life. Only a small percentage of respondents (15%) had good knowledge about the benefits of breastfeeding. A higher level of knowledge occurred among women living in Poland who were older, better educated, lived in cities, and had breastfed earlier. Conclusions. A quite varied and not too high level of knowledge among young women about the benefits of natural feeding was observed, which points to the necessity of intensification of educational activities among them in this area.
Źródło:
Annals of Agricultural and Environmental Medicine; 2017, 24, 3
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Cold Gas War : the Strategies of Russia and the USA in Europe
Autorzy:
Tati, Valerio
Powiązania:
https://bibliotekanauki.pl/articles/1818419.pdf
Data publikacji:
2020
Wydawca:
Instytut Polityki Energetycznej im. Ignacego Łukasiewicza
Tematy:
natural gas
LNG
USA
Russia
Opis:
The main purpose of this article is to analyse the European situation in the field of natural gas supply. The article mainly focuses on the energy behaviour of two countries: Russia and the United States of America. Different countries but with similar purposes, as they both aim to limit the power of control of the other in the old continent, using natural gas (Russia) and LNG (USA) as a weapon. This document, in order to arrive at describing the current situation of the "cold gas war", starts from an historical excursus of how and when the two energy powers began to impose themselves on the world level until today, the current "clash" for the search of dominance over Europe. For the writing of this article, since these are very topical topics, several articles from organizations and journals (e.g. The Economist"), specialized in energy and also geopolitics, have been used. The use of papers from the International Energy Agency (IEA), the Oxford Institute for Energy Studies, was also of fundamental importance in achieving the aim of the article.
Źródło:
Energy Policy Studies; 2020, 1 (5); 56--69
2545-0859
Pojawia się w:
Energy Policy Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Cold Gas War : the Strategies of Russia and the USA in Europe
Autorzy:
Tati, Valerio
Powiązania:
https://bibliotekanauki.pl/articles/1818426.pdf
Data publikacji:
2020
Wydawca:
Instytut Polityki Energetycznej im. Ignacego Łukasiewicza
Tematy:
natural gas
LNG
USA
Russia
Opis:
The main purpose of this article is to analyse the European situation in the field of natural gas supply. The article mainly focuses on the energy behaviour of two countries: Russia and the United States of America. Different countries but with similar purposes, as they both aim to limit the power of control of the other in the old continent, using natural gas (Russia) and LNG (USA) as a weapon. This document, in order to arrive at describing the current situation of the "cold gas war", starts from an historical excursus of how and when the two energy powers began to impose themselves on the world level until today, the current "clash" for the search of dominance over Europe. For the writing of this article, since these are very topical topics, several articles from organizations and journals (e.g. The Economist"), specialized in energy and also geopolitics, have been used. The use of papers from the International Energy Agency (IEA), the Oxford Institute for Energy Studies, was also of fundamental importance in achieving the aim of the article.
Źródło:
Energy Policy Studies; 2020, 1 (5); 56--69
2545-0859
Pojawia się w:
Energy Policy Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rola krajowej infrastruktury gazowej w kształtowaniu współczesnego bezpieczeństwa energetycznego Polski
Autorzy:
Mróz, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/2050787.pdf
Data publikacji:
2020-12-30
Wydawca:
Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:
natural gas
energy security
infrastructure
Opis:
Electricity is one of the factors shaping the quality of life of society. The Polish Energy sector is to a large extent identified with fossil fuel used in conventional energy, based mainly on hard coal, which is not fully in line with the current energy policy of the European Union. Therefore, today it is necessary to use renewable energy more efficiently, which, in addition to the clearly indicated economic effect, also accentuates environmental effects. The purpose of the work is to show the opinions of young people aged 15–24 in terms of their awareness of the interpretation of myths about renewable energy, which is a key problem in the development of the modern energy sector, and to indicate the directions of development of the energy policy in Poland
Źródło:
Polityka i Społeczeństwo; 2020, 18, 3; 16-32
1732-9639
Pojawia się w:
Polityka i Społeczeństwo
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The vitamin B1 release from collagen, chitosan and hyaluronic acid blends
Autorzy:
Kaczmarek, B.
Sionkowska, A.
Bladzich, A.
Powiązania:
https://bibliotekanauki.pl/articles/286151.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
natural polymers
biomedical materials
vitamins
Źródło:
Engineering of Biomaterials; 2016, 19, 138; 44
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
International Scientific Conference “Availability of Natural Resources. Legal Issues”, Lublin, 27 September 2018
Międzynarodowa Konferencja Naukowa „Dostępność do zasobów naturalnych. Zagadnienia prawne”, Lublin, 27 września 2018 r.
Autorzy:
Haładyj, Anna
Spasowska-Czarny, Hanna
Powiązania:
https://bibliotekanauki.pl/articles/2014496.pdf
Data publikacji:
2018
Wydawca:
Fundacja Inicjatyw Akademickich
Tematy:
reference
report
conference
natural resources
Źródło:
Przegląd Prawa Administracyjnego; 2018, 1; 133-138
2545-2525
2657-8832
Pojawia się w:
Przegląd Prawa Administracyjnego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The natural operators of general affine connections into general affine connections
Autorzy:
Kurek, Jan
Mikulski, Włodzimierz M.
Powiązania:
https://bibliotekanauki.pl/articles/747278.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
General affine connection
natural operator
Opis:
We reduce the problem of describing all \(\mathcal{M} f_m\)-natural operators  transforming general affine connections on \(m\)-manifolds into general affine ones to the known description of all \(GL(\mathbf{R}^m)\)-invariant maps \(\mathbf{R}^{m*}\otimes \mathbf{R}^m\to \otimes^k\mathbf{R}^{m*}\otimes\otimes ^k\mathbf{R}^m\) for \(k=1,3\).
Źródło:
Annales Universitatis Mariae Curie-Skłodowska, sectio A – Mathematica; 2017, 71, 1
0365-1029
2083-7402
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska, sectio A – Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Book review : the natural gas exports of Turkmenistan. energy and geopolitical interests in the caspian region
Autorzy:
Unkauf, U.
Powiązania:
https://bibliotekanauki.pl/articles/101752.pdf
Data publikacji:
2017
Wydawca:
Instytut Polityki Energetycznej im. Ignacego Łukasiewicza
Tematy:
natural gas
geopolitics
Caspian region
Opis:
After the decline of the Soviet Union and the emergence of independent states, the southern Soviet republics opened their resources to international markets and began to develop their own political ambitions at the same time. Turkmenistan, as the country with the fourth largest reserves of natural gas (2014 estimated with 9.93 % of worldwide natural gas reserves) and as the most important supplier to China of this energy source takes a special place in the political configuration of post-Soviet Central Asia. In his recently published doctoral thesis, Heinrich Schulz analyses the questions why the country hasn’t realized the export of natural gas to Turkey and Europe yet, and how Turkmenistan is influenced by energy political interests and geopolitics in the Caspian Region. The monograph also introduces general political issues regarding natural gas, pipeline infrastructure, and foreign trade of fossil fuels in Central Asia.
Źródło:
Energy Policy Studies; 2017, 1 (1); 48-51
2545-0859
Pojawia się w:
Energy Policy Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Natural frequencies and modes shapes of two rigid bladed discs on the shaft
Autorzy:
Rządkowski, R.
Sokołowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/1955709.pdf
Data publikacji:
2004
Wydawca:
Politechnika Gdańska
Tematy:
natural frequencies
bladed disc-shaft
Opis:
The dynamic behavior of a rotor consisting of two bladed discs on a solid shaft is considered. The effect of shaft flexibility on the dynamic characteristics of the bladed discs and the coupling effects between the shaft and bladed disc modes are investigated. Results presented for various cases with differing blade flexibility show clearly the coupling effects in a bladed disc-shaft system. Interference diagrams are developed, from which the dynamic behavior of a system can be predicted for differing flexibility relationships between the solid shafts and the bladed discs. In this study, the global rotating mode shapes of flexible bladed disc-shaft assemblies have been calculated. Rotational effects such as centrifugal stiffening have been accounted for, and all the possible couplings between the flexible parts have been allowed. Gyroscopic effects have been included in the shaft with two discs. Calculated natural frequencies obtained from the blade, shaft, bladed disc and shaft with two discs have been checked to determine resonance conditions and coupling effects. The calculations have shown the influence of the shaft on the natural frequencies of the bladed discs up to one nodal diameter frequencies. The torsional frequency of the shaft with two discs is coupled with the zero nodal diameter modes of the single bladed discs. The bending modes of the shaft are coupled with one nodal diameter modes of the bladed discs. It is shown that including the shaft in the bladed discs model is important from a designer's point of view and can change the spectrum of frequencies considerably.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2004, 8, 1; 51-69
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Map of Degraded Areas and Areas of Increased Natural Hazard Risk - as an environmental database for spatial planning
Autorzy:
Sikorska-Maykowska, M.
Strzelecki, R.
Powiązania:
https://bibliotekanauki.pl/articles/2065886.pdf
Data publikacji:
2005
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
soils
natural hazards
mining damage
Źródło:
Przegląd Geologiczny; 2005, 53, 10/2; 984-985
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
U podstaw myśli etycznej Leszka Kołakowskiego
The foundation of Leszek Kołakowski’s ethical thought
Autorzy:
Olczyk, Adam
Powiązania:
https://bibliotekanauki.pl/articles/950081.pdf
Data publikacji:
2016-06-04
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
ethics
natural law
justification
dignity
Opis:
The article discusses primary matters of Leszek Kołakowski’s ethical thought. For that purpose, the analysis focuses on the need to justify the content of natural law. Kołakowski maintains that the development of communication and growth of cities are foundations of the justification process. In line with this idea the intuition of evil (related with such terms like tabu, sacrum, profanum or sin) is the major determinant for the distinction between good and evil. Kołakowski’s theory also explores a connection between the experience of evil and human dignity.
Źródło:
Filozofia Publiczna i Edukacja Demokratyczna; 2016, 5, 1; 219-242
2299-1875
Pojawia się w:
Filozofia Publiczna i Edukacja Demokratyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
CO2-CH4 mixtures phase equilibrium analysis
Autorzy:
Dorosz, P.
Kopczyński, A.
Wojcieszak, P.
Powiązania:
https://bibliotekanauki.pl/articles/1818158.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
natural gas
mixtures
phase equilibrium
Opis:
Carbon dioxide removal is crucial step during natural gas processing, as CO2 is highly corrosive in presence of water. There are natural gas sources around the world with very high carbon dioxide content that cannot be developed. In order to design the effective CO2 removal process, properties of methane-carbon dioxide mixtures has to be determined. Authors have investigated thermodynamic properties of CH4-CO2 mixtures. Extended Peng-Robinson equations were used to determine the phase equilibrium of CH4-CO2 systems of different compositions.
Źródło:
Zeszyty Energetyczne; 2017, 4; 89--97
2658-0799
Pojawia się w:
Zeszyty Energetyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sémantique lexicale et corpus : l’étude du lexique transdisciplinaire des écrits scientifiques
Autorzy:
Tutin, Agnès
Powiązania:
https://bibliotekanauki.pl/articles/605411.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
corpus linguistics
natural language processing
Opis:
This paper deals with a corpus-based linguistic study in lexical semantics. Our topic is the general scientific lexicon, the cross-disciplinary lexicon peculiar to the academic genre. We show how the use of a large corpus enables to develop an inventory of this vocabulary and present the first semantic treatments performed with the help of the corpus, with a first experiment in natural language processing..
Źródło:
Lublin Studies in Modern Languages and Literature; 2008, 32; 242-260
0137-4699
Pojawia się w:
Lublin Studies in Modern Languages and Literature
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sztuka i dobór naturalny
Autorzy:
Dutton, Denis
Powiązania:
https://bibliotekanauki.pl/articles/645149.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
art
natural selection
Darwin
evolutionism
Opis:
The relation between art and the idea of natural selection makes the key issue of this paper. The author examines how Charles Darwin's conc ept of evolution might have affected the sphere of aesthetics. However, the author arguments against understanding of art as a side product of human progress and takes it as an independent form of human agency. The critique of various evolutionary standpoints laid out in this article holds to the standpoint that we cannot recreate with other means the moments of pleasure delivered by art. Thus it is extremely important to understand art as a form of human creativity and a neces sary part of our existence beyond biological determinism stressed out by many evolutionary thinkers.
Źródło:
Kultura-Społeczeństwo-Edukacja; 2015, 8, 2; 163-181
2300-0422
Pojawia się w:
Kultura-Społeczeństwo-Edukacja
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Czym jest i dokąd sięga rodzaj (nie)naturalny?
Autorzy:
Wojdak, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/777048.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
linguistics
grammatical gender
natural gender
Opis:
The article presents considerations concerning the essence and the scope of the concept of the natural gender of nouns. The author advocates its grammatical categorisation – instead of the semantic categorisation dominating in the literature. This means that the superior category in natural gender should be grammatical gender (hence the proposed compound term: natural grammatical gender), and not a semantic feature. In a simple (prototypical) categorisation, natural gender pertains to masculine nouns with male meaning and feminine nouns with female meaning. The article identifies five types of possible extension of this concept:1. the isolation of the neuter natural gender;2. the attribution of natural gender to nouns with inconsistent semantics of sex;3. the recognition of the natural gender which is incompatible with grammatical gender (this extension is onlypossible when natural gender is treated as a semantic feature);4. the analysis of all nouns that denote sexual beings with regard to natural gender;5. the isolation of subcategories of natural masculine nouns (natural genders of the second degree).Complimentary to the narrow understanding of natural gender, the author proposes to use an antonymous term – “unnatural gender” to designate such kind of grammatical gender of personal (or animate) nouns that is not in compliance with their semantic feature of sex (e.g., CHŁOPISKO [A CHAP], BABSZTYL [A HAG]).
Źródło:
Slavia Occidentalis; 2016, 73/1; 175-191
0081-0002
Pojawia się w:
Slavia Occidentalis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ulga z tytułu klęski żywiołowej czy ulga z tytułu szkody wywołanej niekorzystnym zjawiskiem atmosferycznym – analiza problemu
Relief for natural disaster or relief for damage caused by an adverse weather event – an analysis of the problem
Autorzy:
Burzec, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/2216004.pdf
Data publikacji:
2020
Wydawca:
Kancelaria Sejmu. Biuro Analiz Sejmowych
Tematy:
agricultural tax
relief
natural disaster
Opis:
The article concerns the natural disaster relief occurring in the construction of the agricultural tax. The author analysed the legitimacy of the above relief in the context of a specific character of the agricultural tax. This allowed for an assessment to be made of both the current legal provisions regulating the relief and those in force in the former state of law. On this basis, de lege ferenda conclusions were drawn.
Źródło:
Zeszyty Prawnicze BAS; 2020, 3(67); 35-53
1896-9852
2082-064X
Pojawia się w:
Zeszyty Prawnicze BAS
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The concept of the natural system and its importance for the development of integrated research on the natural environment
Autorzy:
Richling, Andrzej
Mikulska, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2028871.pdf
Data publikacji:
2004-06-01
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
holistic approach to nature
ecosystems and geosystems
partial natural systems
taxonomy of natural units
Opis:
The development of the concept of an areal natural unit as a result of the needs of the economic practice and the popularisation of the general systems theory. Ecosystems and geosystems. Hierarchy of the natural system. Topological and chorological units. The issue of a universal natural unit. Applications. The influence of the concept under discussion on the development of the integrated research on the natural environement.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2004, 11; 5-11
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aktualna sytuacja na rynku gazu ziemnego – perspektywy rozwoju
Current situations on the natural gas market – development perspectives
Autorzy:
Janusz, P.
Powiązania:
https://bibliotekanauki.pl/articles/282824.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:
gaz ziemny
ceny gazu ziemnego
bezpieczeństwo energetyczne
natural gas
price natural gas
energy security
Opis:
W artykule przedstawiono prognozę Międzynarodowej Agencji Energii w zakresie wzrostu zużycia gazu ziemnego w okresie do 2035 roku. Gaz ziemny jest jedynym paliwem kopalnym, na który popyt światowy rośnie w każdym z przyjętych scenariuszy. MAE przewiduje, że wzrost zużycia będzie wynosił od 3,3 bln m3 w 2010 r. do 4,0–5,2 bln m3 w 2035 roku. Zaprezentowano również strukturę bilansu energetycznego Polski w okresie ostatnich 12 lat ze szczególnym uwzględnieniem gazu ziemnego, którego udział w strukturze bilansu energetycznego kształtuje się na poziomie około 12%. Z punktu widzenia bezpieczeństwa energetycznego kraju niezmiernie ważna jest struktura i kierunki dostaw tego paliwa. Obecna struktura bilansu dostaw gazu ziemnego powoduje, że Polska należy do grupy państw najmniej uzależnionych od jego importu. W 2011 roku zależność od importu gazu ziemnego wynosiła 75%, natomiast całkowita zależność od importu nośników energii wynosiła 34%. Od 1990 do 2011 roku systematycznie wzrasta całkowita zależność Polski od importu nośników energii, w roku 1990 wynosiła ona tylko 2%. Natomiast zależność od importu gazu ziemnego w tym czasie waha się od 64% do 76%. Mając na uwadze zapewnienie nieprzerwanych dostaw błękitnego paliwa prowadzone są prace, których celem jest rozbudowa istniejącego systemu przesyłowego gazu ziemnego. W roku 2011 dzięki realizowanym inwestycjom zdolności importowe gazu ziemnego do Polski wzrosły o ponad 30%. Biorąc pod uwagę wzrastające znaczenie gazu ziemnego niezmiernie istotne dla krajowej gospodarki są jego ceny. W artykule przedstawiono zmiany cen tego paliwa jakie miały miejsce w okresie od 2000 roku. Ceny gazu ziemnego typu E zawarte w taryfach krajowego monopolisty – tj. PGNiG S.A., zatwierdzonych przez Prezesa URE w latach 2000–2013 wzrosły o 205%. W przypadku gazu ziemnego zaazotowanego typu Ls, wzrost cen wyniósł 221%. Analizując ceny gazu ziemnego według parytetu siły nabywczej w Polsce i wybranych krajach Unii Europejskiej należy stwierdzić, że Polska plasuje się na trzecim miejscu pod względem wysokości wzrostu cen wśród analizowanych państw.
The article presents the forecast of the International Energy Agency as to the increase in the natural gas consumption in the period up to 2035. Natural gas is the only fossil fuel for which the global demand rises in each of the scenarios. IEA predicts that the consumption growth will be between 3.3 bln m3 in 2010 to 4.0–5.2 bln m3 in 2035. The article also presents the structure of energy balance in Poland over the last 12 years with a special focus on natural gas, whose share in the structure of energy balance amounts to 12%. Taking into consideration the country’s energy security, the structure and the supply directions of the fuel to the country are of significant importance. The current structure of natural gas supply balance makes Poland belong to the group of countries which are the least dependent upon natural gas import. In 2011 the dependence on natural gas import amounted to 75% while the total dependence on energy carriers import was 34%. In the period from 1990 to 2011 the total dependence of Poland on energy carriers import increased systematically, in 1990 it amounted only to 2%. However, the dependence on natural gas import ranged from 64% to 76% in that period. In order to ensure the uninterrupted supply of blue fuel, the works has been conducted aiming at the expansion of the existing natural gas transmission system. In 2011, thanks to the investments in hand, the Poland’s natural gas import capacities increased by over 30%. Taking into account the growing importance of natural gas, its price is vital for the domestic economy. The article shows the price changes of the fuel that have taken place in the period since 2000. Prices of natural gas type E included in the tariffs of the national monopolist, i.e. PGNiG, approved by the President of ERO, in the period of 2000 to 2013 has increased by over 205%. In the case of low caloric gas type Ls, the growth in price amounted to 221%. Analyzing the natural gas price according to the purchasing power parity in Poland and selected countries of the European Union, it should be noted that Poland is in third place in terms of price increase among the analyzed countries.
Źródło:
Polityka Energetyczna; 2013, 16, 2; 33-52
1429-6675
Pojawia się w:
Polityka Energetyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simultaneous synthesis-immobilization of nano ZnO on perlite for photocatalytic degradation of an azo dye in semi batch packed bed photoreactor
Autorzy:
Khani, A.
Sohrabi, M.R.
Powiązania:
https://bibliotekanauki.pl/articles/778943.pdf
Data publikacji:
2012
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
Natural gas vehicle
driving range
compressed natural gas (CNG)
thermodynamic properties
CNG fuelling station
Opis:
A novel, simple and simultaneous synthesis-immobilization of nano ZnO on perlite (nZnO-P) as a photocatalyst for photocatalytic degradation of Acid orange 7 (AO7) in aqueous solution was investigated. The effect of operational parameters such as initial dye concentration, initial pH, flow rate, photocatalyst granule size, temperature and the kinetic of the removal of AO7 in terms of the Langmuir-Hinshelwood model in a designed semi batch packed bed photoreactor connected to an on-line sampling UV-Vis spectrophotometer was studied. The results showed that AO7 removal efficiency increased with nZnO-P using the designed setup and the proposed photocatalyst was more efficient than TiO2 as a standard catalyst. Our results confirmed the pseudo-first-order kinetics model. The values of the adsorption equilibrium constant, KAO7, the kinetic rate constant of surface reaction, kc, and the activation energy (Ea) were found to be 0.57 (mg.l-1)-1, 0.41 mg.l-1.min-1 and 11.44 kJ/mol, respectively.
Źródło:
Polish Journal of Chemical Technology; 2012, 14, 4; 69-76
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of important parameters on the natural gas vehicles driving range
Autorzy:
Farzaneh-Gord, M.
Rahbari, H.R.
Nikofard, H.
Powiązania:
https://bibliotekanauki.pl/articles/778945.pdf
Data publikacji:
2012
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
Natural gas vehicle
driving range
compressed natural gas (CNG)
thermodynamic properties
CNG fuelling station
Opis:
One of the most important issues regarding Natural Gas Vehicles (NGVs) is the Driving Range, chich is defi ned as capability of a NGV to travel a certain distance after each refueling. The Driving Range is a serious obstacle in the development and growth of NGVs. Thus the necessity of studying the effects of various parameters on the Driving Range could be realized. It is found that the on-board storage capacity and the natural gas heating value have the greatest effect on the Driving Range. The charge mass of NGV cylinders is varied due to the natural gas composition and the fi nal in-cylinder values (temperature and pressure). Underfi lling of NGV cylinders, during charging operations, is a result of the elevated temperature which occurs in the NGV storage cylinder, due to compression and Rother processes could be overcome by applying extensive over-pressurization of the cylinder during the fuelling operation. Here, the effects of the most important parameters on the Driving Range have been investigated. The parameters are natural gas composition, engine effi ciency and fi nal NGV on-board in-cylinder temperature and pressure. It is found that, the composition has big effects on the Driving Range. The results also show that as fi nal in-cylinder pressure decreases (or temperature increases), the Driving Range will be increased.
Źródło:
Polish Journal of Chemical Technology; 2012, 14, 4; 61-68
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Corporate social responsibility of business in the natural and urban areas of the Lublin province
Społeczna odpowiedzialność przedsiębiorstw w działalności gospodarczej na terenach cennych przyrodniczo i zurbanizowanych województwa lubelskiego
Autorzy:
Mazurek-Kusiak, A.
Powiązania:
https://bibliotekanauki.pl/articles/2051609.pdf
Data publikacji:
2019
Wydawca:
Akademia Bialska Nauk Stosowanych im. Jana Pawła II w Białej Podlaskiej
Tematy:
corporate social responsibility
business
entrepreneurship
natural area
urban area
natural valuable area
Lublin province
Opis:
Subject and purpose of work: The purpose of the study was to compare the behavior of companies located in the areas of nature value and in their proximity with companies located in urbanized areas in the Lublin Region in terms of Corporate Social Responsibility (CSR). Materials and methods: The study was conducted by means of the diagnostic survey method, using direct interviews. Results and conclusions: Companies located in valuable natural or close to natural areas tend to undertake ecological and environmental investments (27.68%), care for the common good (54.46%), and treat employees well (54.46%) as compared with the companies located in urban areas (10.72%, 25.89% and 25.89%, respectively). Sensitivity to nature is primarily the result of the company’s direct contact with nature, the recognition of the importance of protecting it, as well as of good treatment of employees, that is it results mainly from the combination of business and personal relationships with employees. Firms located in urban areas are much more likely to support charitable donations (22.33%), which is a result of higher returns by these companies and more frequent requests for financial assistance. Further research in this regard should concern factors that make the entrepreneurs more willing to implement CSRs in their companies.
Przedmiot i cel pracy: Celem badań było porównanie zachowań przedsiębiorstw zlokalizowanych na obszarach cennych przyrodniczo i w ich pobliżu z przedsiębiorstwami zlokalizowanymi na terenach zurbanizowanych pod kątem społecznej odpowiedzialności (CSR). Materiały i metody: Badania przeprowadzoną metodą sondażu diagnostycznego, przy pomocy wywiadów bezpośrednich. Wyniki i wnioski: Przedsiębiorstwa zlokalizowane na terenach cennych przyrodniczo lub w ich pobliżu zdecydowanie częściej podnajmują inwestycje ekologiczne i na ochronę środowiska (27,68%), dbają o dobro wspólne (54,46%) i dobrze traktują pracowników (54,46%), niż przedsiębiorstwa zlokalizowane na terenach zurbanizowanych (odpowiednio: 10,72%; 25,89% i 25,89%). Wrażliwość przyrodnicza wynika głównie z faktu bezpośrednich kontaktów przedsiębiorstwa z przyrodą i zauważenia jak ważna jest jego ochrona, podobnie dobre traktowanie pracowników głównie wynika z łączenia relacji biznesowych i osobistych z pracownikami. Przedsiębiorstwa zlokalizowane na terenach zurbanizowanych zdecydowanie częściej natomiast wspierają akcje charytatywne (22,33%), co jest wynikiem osiągania wyższych zysków przez te przedsiębiorstwa i częstszymi prośbami o taką pomoc. Dalsze badania w tym zakresie powinny dotyczyć czynników jakie wpływają na to, że przedsiębiorcy chętniej będą w rozwoju swoich firm wprowadzać CSR.
Źródło:
Economic and Regional Studies; 2018, 11, 4; 81-98
2083-3725
2451-182X
Pojawia się w:
Economic and Regional Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Strategia kształtowania poziomu cen CNG w oparciu o analizę rentowności granicznej dystrybutora gazu i operatora floty pojazdów
Strategy of shaping the CNG prices level based on the break-even analysis of the gas distributor and the vehicles fleet operator
Autorzy:
Kwaśniewski, K.
Sas, J.
Powiązania:
https://bibliotekanauki.pl/articles/300305.pdf
Data publikacji:
2006
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
gaz ziemny
cena gazu ziemnego
paliwa alternatywne
natural gas
natural gas price
alternative fuels
Opis:
Spośród paliw alternatywnych gaz ziemny ma największy potencjał rynkowy, pozwalający zmniejszyć wysoki stopień uzależnienia sektora transportowego od ropy naftowej oraz ograniczyć szkodliwość jego oddziaływania na środowisko. W artykule przedstawiono perspektywy rozwoju rynku paliw alternatywnych - w tym rynku CNG w Polsce. Omawiając ekonomiczne aspekty substytucji paliw tradycyjnych alternatywnymi, autorzy przeprowadzają analizę rentowności granicznej inwestycji - budowy stacji sprężania oraz wymiany części floty pojazdów. Na tej podstawie próbują oszacować cenę CNG zapewniającą rozwój rynku NGV przy spełnieniu warunku efektywności inwestycji. Aby warunek ten mógł być spełniony w długim horyzoncie czasowym i tym samym stymulować szybszy rozwój sektora NGV, konieczna jest odpowiednia polityka podatkowa państwa
From among alternative fuels, in the nearest future it is the natural gas that will have big enough economic potential which may reduce the highest level dependency of the transport sector on fuel oil, additionally reducing its harmful influence on the environment. The article presents the perspectives of market development of alternative fuels including CNG in Poland. Discussing the economic aspects of substitution of fuel, the authors do the BEP (Break-Even Analysis) investment i.e. the building of a compression station as well as the replacement of the fleet of vehicles. On this basis they look for the best price assuring development of the NGV market under fulfilment of the condition of effectiveness of investment. In order to fulfil this condition in the long-term perspectives and at the same time stimulate the faster development of the NGV sector, the appropriate tax policy is necessary in our country
Źródło:
Wiertnictwo, Nafta, Gaz; 2006, 23, 1; 293-300
1507-0042
Pojawia się w:
Wiertnictwo, Nafta, Gaz
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The process of creation and the values of the Wzgorza Strzelinskie Natural-Landscape Complex
Autorzy:
Jawecki, B.
Powiązania:
https://bibliotekanauki.pl/articles/60175.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
nature
landscape
monument
nature conservation
Wzgorza Strzelinskie Natural-Landscape Complex zob.Strzelin Hills Natural-Landscape Complex
Strzelin Hills Natural-Landscape Complex
natural value
cultural value
protected area
geological structure
location
historical building
Opis:
This paper presents the process of creation of the Wzgórza Strzelińskie (Strzelin Hills) Natural-Landscape Complex. It describes the rationale, the idea and the process of consultations and work on the resolution to establish the Complex, from the concept, through consultations to the adoption of the resolution. The paper discusses elements of natural and cultural values of the Complex that were the reason behind making Wzgórza Strzelińskie a legally protected site. Recommendations are presented concerning nature protection as well as prohibitions in force in the Complex. The paper lists potential threats to the natural environment, landscape and cultural resources of the Wzgórza Strzelińskie Natural-Landscape Complex.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2011, 11
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wymagania i metody badań dla wybranych wyrobów z kamienia naturalnego
Requirements and test methods for selected natural stone products
Autorzy:
Strzałkowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/170817.pdf
Data publikacji:
2018
Wydawca:
Poltegor-Instytut Instytut Górnictwa Odkrywkowego
Tematy:
kamień naturalny
wymagania dla wyrobów z kamienia naturalnego
metody badań kamienia naturalnego
natural stone
requirements for natural stone products
testing methods of natural stone
Opis:
Rozwój górnictwa skalnego eksploatującego złoża surowców blocznych powoduje potrzebę usystematyzowania i określenia niezbędnych wymagań jakie stawia się wyrobom z kamienia naturalnego. W publikacji dokonano zestawienia rodzaju wymaganych badań dla wybranych produktów z kamienia naturalnego oraz przedstawiono wykaz norm, na podstawie których przeprowadza się te badania. Na podstawie wymagań określonych w normach dla produktów z kamienia naturalnego wykonywane są badania parametrów fizycznych i mechanicznych kopalin skalnych, z których produkowane są różne elementy kamienne. Właściwości te są ściśle związane z zapewnieniem trwałości oraz odporności na czynniki zewnętrzne produkowanych elementów kamiennych. Znajomość fizycznych i mechanicznych cech pozwala projektantowi lub inwestorowi przedsięwzięcia określić czy materiał budowlany z kamienia naturalnego będzie odpowiednim produktem, spełniającym wszystkie wymagania określone w specyfikacji technicznej inwestycji.
The development of the dimension stone mining causes the need to systematise and define the necessary requirements for natural stone products. The publication presents a list of tests required for selected natural stone products and a list of standards on the basis of which these tests are conducted. On the basis of standards defining the requirements for natural stone products, the physical and mechanical parameters of rock raw materials from which various stone elements are produced should be determined. These properties are closely related to ensuring durability and resistance to external factors of the produced stone elements. Knowledge of physical and mechanical properties allows the designer or investor to determine whether the building material of natural stone meet the requirements defined in the technical specification of the in
Źródło:
Górnictwo Odkrywkowe; 2018, 59, 5; 34-40
0043-2075
Pojawia się w:
Górnictwo Odkrywkowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aspects of recreational and tourist activity in Yavoriv National Natural Park
Autorzy:
Kadnichanska, Myroslava
Powiązania:
https://bibliotekanauki.pl/articles/1201802.pdf
Data publikacji:
2016-12-07
Wydawca:
Uniwersytet Gdański. Instytut Geografii
Tematy:
natural reserve fund
Yavoriv national natural park
tourist resources of Ukraine
ecotourism potential of Rostochchia
Opis:
The peculiarities of the development of tourism at Yavoriv National Natural Park (YNNP) are highlighted, tourist and resource potential of the park is evaluated. YNNP – nature-protected, recreational, cultural and educational, scientific and research institution of national importance, established to preserve, reproduce and efficiently use of natural complexes and objects of Roztochchia which have special ecological, healthy, historical and cultural, scientific, educational and aesthetic value. The problems and perspectives of tourist development and recreation at this ecological territory. Yavoriv national park has significant recreational potential for the development of eco-educational, historical, cultural, and sacral tourism, and sports (equestrian, cycling and skiing) tourism, and at the surrounding areas – qualified tourism (hunting, fishing). The park already operates a number of walking and bus routes, ecological and cognitive trails fixed places for rest are equipped.
Źródło:
Journal of Geography, Politics and Society; 2016, 6, 4; 52-56
2084-0497
2451-2249
Pojawia się w:
Journal of Geography, Politics and Society
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bilans stanu zasobów gazu ziemnego na przykładzie złóż Niżu Polskiego
The balance of the state of natural gas resources on the example of the south-western Polish deposits
Autorzy:
Piesik-Buś, W.
Powiązania:
https://bibliotekanauki.pl/articles/1835250.pdf
Data publikacji:
2018
Wydawca:
Instytut Nafty i Gazu - Państwowy Instytut Badawczy
Tematy:
bilans zasobów
złoże gazu ziemnego
gaz ziemny
balance of resources
natural gas resources
natural gas
Opis:
Głównym regionem występowania złóż gazu ziemnego w naszym kraju jest Niż Polski. Złoża tego surowca są znane z przedgórza Karpat, jak również z Karpat i polskiej strefy ekonomicznej Bałtyku, gdzie niewielkie zasoby gazu występują w małych złożach. Około 75% zasobów gazu znajduje się w utworach miocenu i czerwonego spągowca, a pozostałe w utworach kambru, dewonu, karbonu, cechsztynu, jury i kredy. Monoklina przedsudecka jest megastrukturą zbudowaną z kilku kompleksów strukturalnych: kaledońskiego, waryscyjskiego, laramijskiego oraz pokrywy polaramijskiej. Z punktu widzenia rozpoznania warunków akumulacji interesujące są kompleksy waryscyjski oraz laramijski. Kompleks waryscyjski, stanowiący podłoże dla utworów permu, zbudowany jest w swej najwyższej części z utworów karbońskich, wykazujących wysoki stopień zaangażowania tektonicznego. Utwory te uległy silnym procesom erozyjno-denudacyjnym, w wyniku których ukształtowała się ich powierzchnia morfologiczna. W 2015 roku stan wydobywalnych zasobów gazu ziemnego w Polsce wynosił 125,04 mld m3 (zasoby bilansowe i pozabilansowe) i w porównaniu z rokiem poprzednim zasoby te zmniejszyły się o 4,7 mld m3 . Ubytek powstał głównie w wyniku wydobycia. W 2015 roku udokumentowano złoże Sieraków (udokumentowano zasoby wydobywalne – 93,91 mln m3 ). Zasoby wydobywalne zagospodarowanych złóż gazu ziemnego wynoszą 102,34 mld m3 , co stanowi 82% ogólnej ilości zasobów wydobywalnych. Zasoby przemysłowe w 2015 roku wynosiły 54,91 mld m3 . Biorąc pod uwagę poszczególne regiony geologiczne Polski zasobne w gaz ziemny, przeprowadzono analizę wielkości zasobów wydobywalnych, przemysłowych i wydobycia na przestrzeni lat 2007–2015.
The main region of occurrence of natural gas deposits in our country is Niż Polski. These deposits are known from the Carpathian Foreland as well as from the Carpathians and the Polish Baltic Sea Region, where inconsiderable gas resources are found in small deposits. Approximately 75% of the gas resources are found in the Miocene and red spade, and the remaining in Cambrian, Devonian, Carboniferous, Zeissstein, Jurassic and Cretaceous. The Fore-Sudon Monoclinic is a megastructure built of several structural complexes: Caledonian, Variscan, Laramie and the Polar Cap. From the point of view of the recognition of the conditions of accumulation, of interest are the Variscan and Larameric complexes. The Vicar Scale, which forms the backbone of the Permian Formations, is built in the highest part of the Carboniferous, with a high degree of tectonic involvement. These works underwent strong erosion-denuding processes as a result of their morphological surface. In 2015, the state of extraction of natural gas resources amounted to 125.04 billion m3 (balance sheet and off-balance sheet resources) and decreased by 4.7 billion m3 as compared to the previous year. The depletion of resources was mainly due to extraction. In 2015, the Sieraków deposit was documented (93.91 million m3 was documented). The extracted resources of the developed natural gas fields are 102.34 billion m3 , which accounts for 82% of the total amount of extracted resources. Industrial production in 2015 was 54.91 billion m3 . Taking into account the various geological regions of Poland, which are rich in natural gas, an analysis of the volume of recoverable, industrial and extracted natural resources from 2007 to 2015 was done.
Źródło:
Nafta-Gaz; 2018, 74, 7; 543-551
0867-8871
Pojawia się w:
Nafta-Gaz
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zapotrzebowanie na gaz ziemny w Polsce i możliwości jego zaspokojenia
Natural Gas Demand in Poland and Possibilities of Its Fulfillment
Autorzy:
Kaliski, M.
Szurlej, A.
Powiązania:
https://bibliotekanauki.pl/articles/282708.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:
gaz ziemny
zasoby gazu ziemnego
wydobycie krajowe
LNG
natural gas
natural gas reserves
domestic production
Opis:
W artykule przedstawiono popyt na gaz ziemny w ostatnich latach w Polsce oraz strukturę podaży gazu ze szczególnym uwzględnieniem wydobycia tego surowca z rodzimych złóż. Porównano stan dywersyfikacji dostaw gazu ziemnego do Polski na tle wybranych państw UE w 2008 r. Następnie przybliżono wpływ kryzysu gazowego z początku 2009 r. na krajowy rynek gazu oraz podjęto próbę określenia struktury dostaw tego surowca do Polski w perspektywie do 2022 r. Przewidywane wielkości dostaw z uwzględnieniem odbioru LNG odniesiono do prognozy zapotrzebowania na gaz z projektu Polityki energetycznej Polski do 2030 r.
The article explains the meaning of natural gas in the structure of primary energy consumption in Poland compared to some EU states. Natural gas demand in the last years in Poland and the structure of natural gas supplies considering its extraction from domestic sources were also presented in the article. Furthermore, the article shows the influence of the gas crisis, from the beginning of the year of 2009, on the home market of gas (the origin of the crisis, the course, actions of energy enterprises and the government civil service aiming at the minimization of its effects). Actions taken within the scope of the diversification of natural gas supplies with special focus on building of LNG gas port in Świnoujście were characterised. Next, an attempt to determine the structure of natural gas supplies to Poland in the perspective until 2022 was made. Predicted natural gas supply scale, considering the receipt of this natural resource as LNG from 2014, was related to the forecast of natural gas demand taken from the project of the Poland's Energy Policy until 2030. The increase in the magnitude of the demand for natural gas in the perspective of the next few years will considerably depend on dynamics of the development of investments in the gas power industry.
Źródło:
Polityka Energetyczna; 2009, T. 12, z. 2/2; 217-227
1429-6675
Pojawia się w:
Polityka Energetyczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Airborne allergenic pollen in natural areas: Hornachuelos Natural Park, Cordoba, Southern Spain
Autorzy:
Garcia-Mozo, H
Dominquez-Vilches, E.
Galan, C.
Powiązania:
https://bibliotekanauki.pl/articles/51975.pdf
Data publikacji:
2007
Wydawca:
Instytut Medycyny Wsi
Tematy:
pollen
aerobiology
atmospheric pollen
natural area
meteorology
Cordoba
Hornachuelos Natural Park
rural area
allergy
Spain
Opis:
The present study shows the results of monitoring the atmospheric pollen in the atmosphere of an area of natural vegetation, the Hornachuelos Natural Park, Cordoba, southern Spain, during a six years (1998-2003). Special attention was paid in the seasonal and intra-diurnal characteristics of airborne allergenic pollen. During this period, 31 pollen types were described, some of them rare in aerobiological analysis. High concentrations of allergenic pollen from entomophilous species and from areas at a long distance were found. Signifi cant differences between pollen spectrum and pollen concentration of the natural study area and the surrounding cities were detected. Intra-diurnal pattern from trees surrounding the trap presented a clear peak at midday/afternoon. Pollen from taxa comprising many species and from species at far locations showed a smoother intra-diurnal pattern. The correlation with meteorological parameters was positive with maximum and mean temperatures, and negative with humidity and rainfall.
Źródło:
Annals of Agricultural and Environmental Medicine; 2007, 14, 1
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biodegradation of TPS mouldings enriched with natural fillers
Biodegradacja wyprasek skrobi termoplastycznej wzbogaconych naturalnymi wypelniaczami
Autorzy:
Oniszczuk, T.
Wojtowicz, A.
Mitrus, M.
Moscicki, L.
Combrzynski, M.
Rejak, A.
Gladyszewska, B.
Powiązania:
https://bibliotekanauki.pl/articles/792614.pdf
Data publikacji:
2012
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
thermoplastic starch
biodegradation
extrusion-cooking
natural fibre
potato starch
moulding technique
natural filler
storage time
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2012, 12, 2
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of wood flour addition and modification of its surface on the properties of rotationally molded polypropylene composites
Wpływ dodatku mączki drzewnej i jej modyfikacji powierzchniowej na właściwości kompozytów polipropylenowych otrzymywanych w procesie odlewania rotacyjnego
Autorzy:
Barczewski, M.
Szostak, M.
Nowak, D.
Piasecki, A.
Powiązania:
https://bibliotekanauki.pl/articles/945810.pdf
Data publikacji:
2018
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Chemii Przemysłowej
Tematy:
rotational molding
polypropylene
natural filler
natural composites
WPC
odlewanie rotacyjne
polipropylen
napełniacz naturalny
kompozyty naturalne
Opis:
The aim of this study was to assess the effect of wood flour addition and the treatment of its surface on the properties and structure of rotationally molded (rotomolded) polypropylene. In this study, a random polypropylene copolymer (rPP) micropellet was rotationally molded with the direct addition of 5 wt % of commercial grade of wood flour Lignocel C120, untreated (WF) and chemically treated (mWF). Part of the natural filler was chemically modified by a silanization process using 3-aminopropyltriethoxysilane (3-APS). The structure, quality and mechanical properties of the polypropylene and composite rotomolded parts were discussed in terms of changes in the material’s thermal properties, evaluated by differential scanning calorimetry (DSC), thermomechanical properties, obtained by dynamic mechanical-thermal analysis (DMTA), and dynamic rheological properties, assessed by oscillatory rheometry. The structure of composites and fillers was analyzed by means of a scanning electron microscopy (SEM), while the analysis of the chemical structure of materials and final products was carried out by a Fourier transform infrared spectrometry (FT-IR). It was found that adding the natural filler, despite the application of a preliminary drying and chemical treatment caused creation of the pores and decreased the overall mechanical properties of the composites. The lower processing ability of the composites was ascribed to a higher complex viscosity and an increase in the elastic behavior of molten composite materials in comparison to pure rPP.
Kompozyty polipropylenowe napełniane mączką drzewną otrzymywano metodą odlewania rotacyjnego. Rotowaniu poddawano kopolimer polipropylenowy (rPP) w postaci mikrogranulatu wraz z dodatkiem 5 % mas. niemodyfikowanej (WF) oraz modyfikowanej chemicznie (mWF) mączki drzewnej Lignocel C120, wprowadzonej razem z polipropylenem bezpośrednio do formy. Mączkę drzewną modyfikowano chemicznie w procesie silanizacji z zastosowaniem 3-aminopropylotrietoksysilanu (3-APS). Strukturę, jakość oraz właściwości mechaniczne odlewów polipropylenowych i kompozytowych omówiono w odniesieniu do zmodyfikowanych właściwości cieplnych ocenianych metodą różnicowej kalorymetrii skaningowej (DSC), właściwości termomechanicznych badanych za pomocą dynamiczo-mechanicznej analizy termicznej (DMTA) oraz właściwości reologicznych określanych techniką reometriirotacyjnej. Strukturę kompozytów oraz napełniaczy badano z zastosowaniem skaningowej mikroskopii elektronowej (SEM). Zmiany struktury chemicznej napełniaczy oraz odlewów oceniano na podstawie rejestrowanych widm spektroskopii w podczerwieni z transformatą Fouriera (FT-IR). Stwierdzono, że mimo wstępnego suszenia i modyfikacji chemicznej napełniaczy naturalnych, ich dodatek dopolipropylenu spowodował powstanie porowatej struktury w odlewach kompozytowych. Ograniczenie przetwarzalności kompozytów polipropylenowych napełnionych mączką drzewną przypisano zmianom ich właściwości reologicznych.
Źródło:
Polimery; 2018, 63, 11-12; 772-784
0032-2725
Pojawia się w:
Polimery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wskazanie w firmie statusu przedsiębiorcy będącego osobą fizyczną oraz przedsiębiorcy będącego fundacją
Indication in the company of the status of an entrepreneur being a natural person and an entrepreneur being a foundation
Autorzy:
Zaporowski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/476349.pdf
Data publikacji:
2014
Wydawca:
Krakowska Akademia im. Andrzeja Frycza Modrzewskiego
Tematy:
business name
natural person
foundation
confusion
Opis:
Th e business name of an entrepreneur who is a natural person may be composed of its sole name and surname. Th e business name of an entrepreneur, who is the foundation, is the name of the foundation. Th is can sometimes lead to confusion as it is not always possible to determine whether the name and surname is a business name of an entrepreneur who is a physical or the name and surname refer to that entrepreneur in circumstances not related to her business activities. Similarly, there might be doubts whether the name of the foundation is its business name as an entrepreneur or is it her name in circumstances not related to its business activities. Author approves and proposes other solutions to prevent such threats.
Źródło:
Studia Prawnicze: rozprawy i materiały; 2014, 2(15); 158-168
1689-8052
2451-0807
Pojawia się w:
Studia Prawnicze: rozprawy i materiały
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Plants – a source of therapeutic material?
Autorzy:
Bober, Zuzanna
Stępień, Agnieszka
Aebisher, David
Ożóg, Łukasz
Bartusik-Aebisher, Dorota
Powiązania:
https://bibliotekanauki.pl/articles/454997.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:
plants
natural products
drug
therapeutic material
Opis:
Introduction. The use of plants with therapeutic or medicinal properties is as ancient as human civilization and for many years prior to the 20th century, plants and animal products were the main source of therapeutic medicinal drugs. Aim. The discovery of new plant-derived drugs continues to be an active field of research in medical science today. The aim of this article is to describe several main classes of natural products currently under investigation. Material and methods. Analysis of literature.
Źródło:
European Journal of Clinical and Experimental Medicine; 2018, 1; 34-36
2544-2406
2544-1361
Pojawia się w:
European Journal of Clinical and Experimental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Thomistic Perception of the Person and Human Rights
Autorzy:
Procopiou, Eleni
Powiązania:
https://bibliotekanauki.pl/articles/507268.pdf
Data publikacji:
2017-03-30
Wydawca:
International Étienne Gilson Society
Tematy:
Aquinas
person
rights
natural law
justice
Opis:
The idea of human rights is connected to the modern perception of law founded on subjectivity, in the context of which rights are authorizations of individual action versus a higher authority, resulting in a subjectivity of law. The huge importance of the thomistic perception of the person is connected with the issue of relations between the individual and society, as well as relations between law and state, since Thomas Aquinas foresaw what we call ‘rights of man’. Thus, the person, in a metaphysical context, is associated with natural order, since natural sociability forms the basis of a person’s supernatural fulfillment. Because of his social nature, the person is also a carrier of social relations and a product of his own encounter with other persons. In this way, Thomas Aquinas makes a synthesis of man per se, as part of mankind, and man as a person vis-à-vis others in the sphere of justice, consisting ‘in rendering to each one his right’. Ius is a relation of justice concerning what is right (iustum) from the point of view of the other, “to whom something is due.” Aquinas can be considered a forerunner of human rights of the modern era, as demonstrated by the issue of natural equity, the issue of unjust law and obedience and the issue of political legitimization. In this framework, “human” or “natural” rights are considered moral rights. However, in the sphere of law they are perceived only within the community and common good, by no means constituting exclusive and absolute rights but only rights corresponding with duties and obligations. The Thomistic approach expresses both the free side of man vis-à-vis the state and its structures (in the spiritual level) and the egalitarian demand of law within social relations. Furthermore, it places the sphere of law on the background of common good and common interest. The Thomistic approach of the human person is a response to the modern perception of legal subjectivity and the priority of individuals, associated with the ideology of rights and leading to a confrontation of individual and society and a division of man to natural man and citizen, a product of the antithesis between society and state.
Źródło:
Studia Gilsoniana; 2017, 6, 1; 131-152
2300-0066
Pojawia się w:
Studia Gilsoniana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The role of oil and natural gas in the context of low-emission transport by 2030
Autorzy:
Prugar, J.
Węgrzyn, P.
Powiązania:
https://bibliotekanauki.pl/articles/101741.pdf
Data publikacji:
2017
Wydawca:
Instytut Polityki Energetycznej im. Ignacego Łukasiewicza
Tematy:
natural gas
oil
low-emission transport
Opis:
Fossil fuels, mainly petroleum and natural gas, are dominant in the transport sector. The occurring climate changes, which are largely the result of exhaust emissions, must be slowed down. To achieve this, legal regulations have been introduced determining the development of alternative drives in transport while reducing the share of those present. The development of electromobility and clean gas technologies is a chance to reduce the share of diesel drives in the transport sector. The purpose of this article is to present the role of natural gas and crude oil in the perspective of 2030.
Źródło:
Energy Policy Studies; 2017, 1 (1); 35-47
2545-0859
Pojawia się w:
Energy Policy Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Występowanie pestycydów w wodach naturalnych
Pesticides in natural water
Autorzy:
Jankowska, M.
Powiązania:
https://bibliotekanauki.pl/articles/237091.pdf
Data publikacji:
1998
Wydawca:
Polskie Zrzeszenie Inżynierów i Techników Sanitarnych
Tematy:
wody naturalne
pestycydy
pesticides
natural water
Opis:
The draft of the standard required by the Polish Drinking Water Directive for pesticides has specified the maximum admissible levels of 27 species.By now,12 out of the 27 pesticides have been recalled from the market.The probability of occurance in natural waters for the other 15 pesticides varies according to the type and acreage of the crop in the catchment area,and also according to the formula used by the manufacturer.This paper gives an account of the pest control products which ware in use in the district of Bydgoszcz(north of Poland) in 1995 and contained pesticide levels recommended by the Drinking Water Directive.The pesticides in question ware also analyzed for toxicity.
Źródło:
Ochrona Środowiska; 1998, 1; 13-16
1230-6169
Pojawia się w:
Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vibrations and stability of a two-rod column loaded by a sector of a rolling bearing
Drgania i stateczność dwuprętowej kolumny obciążonej poprzez wycinek łożyska tocznego
Autorzy:
Tomski, L.
Szmidla, J.
Gołębiowska-Rozanow, M.
Powiązania:
https://bibliotekanauki.pl/articles/281840.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
elastic column
divergence instability
natural frequency
Opis:
In this work, a new type of loading of slender systems, which is a follower force directed towards a positive or a negative pole is presented. Constructional models of loading heads, which realize this type of loading, are also presented. The variant of theoretical investigations concerning formulation of boundary conditions is shown. It results from the energetic formulation. Dependently on constructional variants of both the loading and receiving heads, values of the critical force and courses of the natural frequency as a function of the external loading for the applied geometry and physical constants of the column are determined. Theoretical results are compared with those from an experiment.
W pracy prezentuje się nowe obciążenie układów smukłych, które jest obciążeniem siłą śledzącą skierowaną do bieguna dodatniego lub ujemnego. Przedstawia się rozwiązania konstrukcyjne głowic obciążonych, które realizują to obciążenie. Prezentuje się rozważania teoretyczne dotyczące sformułowania warunków brzegowych na podstawie całkowitej energii układu. W zależności od rozwiązania konstrukcyjnego głowicy obciążającej i przejmującej obciążenie określa się wartość siły krytycznej oraz przebieg częstości drgań własnych w funkcji obciążenia zewnętrznego dla zadanej geometrii i stałych fizycznych kolumny. Wyniki badań teoretycznych porównuje się z wynikami badań eksperymentalnych.
Źródło:
Journal of Theoretical and Applied Mechanics; 2004, 42, 4; 905-926
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preliminary evaluation of effective vibration analysis for the fault diagnosis of natural gas engine-driven compressor
Autorzy:
Listewnik, K.
Polanowski, S.
Dereszewski, M.
Żukowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/247212.pdf
Data publikacji:
2011
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
natural gas motor compressors
vibration diagnostics
Opis:
In this paper were presented results of preliminary research of the fault diagnosis of natural gas engine-driven compressor by vibration analysis. Natural gas engine-driven compressors are heavily exploited during delivering natural gas to the transmission network of Poland. Every failure brings about interferences to gas system, furthermore it causes notably cost of maintenances. The major failures are piston seizures and overly level of vibration causes by exceedingly wear, an unbalanced engine after repairs and dry friction. During research investigated three natural gas engine-driven compressors. Acceleration of engine cylinders was measured in cylinder axis and perpendicularly axis and acceleration of compressor cylinders, engine fundament and gas receiver in three axes. Results obtain during investigation of engine cylinders one gas engine-driven compressor collates with results of validation of engine cylinders after their stripping. Preliminary results of investigation indicate proper trend to set up diagnostic symptoms. It was found that for increasing of information amount is necessary to carry out synchronous measurements and its envelops in domain of crankshaft rotation angle. Very important source of diagnostic information can be shaft acceleration, determined basing on existing system of signals generation. The investigation is to be continued.
Źródło:
Journal of KONES; 2011, 18, 4; 243-250
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of Natural Geographic Features on the Manufacturing Industry in Sanliurfa, Turkey
Autorzy:
Şahinalp, Mehmet Sait
Powiązania:
https://bibliotekanauki.pl/articles/438288.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
Tematy:
geography
industry
natural environment
Sanliurfa
Turkey
Opis:
Geographical features of a place have an important effect on distribution, location, aglomeration and a variety of industrial activities. Social and economical features, along with natural geographic features such as geology, geomorphology, climate, natural vegetation, soil properties and hydrographic features also have a significant effect on industry. This study aims at determining how physical geographic features affect categories of industrial activities in Sanliurfa. For this purpose, firstly, physical geographic features of Sanliurfa and statistical data on agricultural and industrial activities in Sanliurfa were obtained. Then, effects of these physical features on other economic activities and the influence of those features on the distribution of industrial plants and industrial activities were analysed in terms of distribution, relation and casuality principles. Geological formations in Sanliurfa province occured in Neogene and also in Quaternary. These formations mostly consist of Neogene limestone, Quaternary basaltic volcanic rocks and alluvial soils. Geomorfically Sanliurfa is a slightly hilly place with plateaus and plains. The main river in Sanliurfa is the Euphrates – the biggest river of Turkey. Naural vegatation of Sanliurfa consists of steppe. These physical geographic fetaures of Sanliurfa cause intensive agricultural activites all across the province. Sanliurfa province covers 18,584 km² and 60% of this area is convenient for agriculture. As a consequence, the majority of manucturing industry in Sanliurfa is agro-based, such as food, textile, mill and apparel industries. While these categories constitute 65.43% of all industrial enterprises, the share of enterprises involving stone, clay, glass, and concrete industry is 11%, and lumber and wood industry share is only 2%.
Źródło:
Prace Komisji Geografii Przemysłu Polskiego Towarzystwa Geograficznego; 2019, 33, 1; 89-105
2080-1653
Pojawia się w:
Prace Komisji Geografii Przemysłu Polskiego Towarzystwa Geograficznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Extracting limestone: How to interpret the city through ammonites and belemnites
Autorzy:
Sadowska, Monika
Powiązania:
https://bibliotekanauki.pl/articles/914198.pdf
Data publikacji:
2020-10-09
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
aestheticization
natural history
stone
city
museum
Opis:
The paper analyzes the presence of the remains of ammonites and belemnites in the stones used to build the elevations of houses in modern Polish cities. The process of aestheticizing buildings is the reason for fossilized cephalopods being moved from the natural environment into urban space. I consider whether the use of such materials leads merely to making the buildings look more attractive or if this process provides an opportunity to interpret these buildings in an alternative way, which goes beyond aesthetic categories and is related to the fact that the fossils have been moved from the natural world into the cultural sphere. The limestone elements of architecture also allow one to look at the city as a unique museum of cultural and natural history.
Źródło:
Polish Journal of Landscape Studies; 2020, 3, 6; 83-95
2657-327X
Pojawia się w:
Polish Journal of Landscape Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Suzuki-Miyaura reaction in the chemical transformations of vindoline
Autorzy:
Ruszkowska, Joanna
Chrobak, Robert
Żero, Paweł
Maurin, Jan
Szawkało, Joanna
Czarnocki, Zbigniew
Powiązania:
https://bibliotekanauki.pl/articles/1040884.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
alkaloids
chemotherapy
bioorganic chemistry
natural products
Opis:
Vindoline and its analogues are important constituents of the Madagascan periwinkle Catharanthus roseus, and some of them are valuable chemotherapy drugs used in treatment for some types of cancer, including leukaemia, lymphoma, breast and lung cancer. The search for semi-synthetic congeners of natural substances is still an important task for organic chemistry. In this communication we report the synthesis of five new vindoline derivatives, 15-(2-methoxyphenyl)vindoline 11, 15-(3-methoxyphenyl)vindoline 12, 15-(2-nitrophenyl)vindoline 13, 15-(3-cyanophenyl)vindoline 15, and 15-(4-cyanophenyl)vindoline 16 using the Suzuki-Miyaura reaction as the key step. X-Ray analysis of compound 16 is also reported.
Źródło:
Acta Biochimica Polonica; 2007, 54, 4; 857-861
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A common gas market for Visegrad Group countries
Autorzy:
Kumor, Michał
Porada, Stanisław
Powiązania:
https://bibliotekanauki.pl/articles/1628383.pdf
Data publikacji:
2020-12-30
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
gas market
natural gas
Visegrad Group
Opis:
The construction of the North-South Gas Corridor, regional energy integration and international cooperation in the Visegrad Group (Poland, Hungary, Czech Republic and Slovakia) can be determinants for the creation of a common gas market for four Eastern Europe countries (V4). The starting point for this work is concerned with the technical possibilities, chances, threats and necessary steps for the development of the existing infrastructure. The import capacities of countries neighbouring the V4 territory and the internal gas transmission potential inside the indicated group of countries have been presented in this paper. Special attention was paid to the international possibilities of using underground gas storage. The V4 countries, in particular, were examined due to their location between the Russian Federation and Western European gas consumers, and due to the need to ensure the security of supply, volumes and directions of import and export for each from. The bringing online of the gas connection between Norway and Poland, along with the construction of the Croatian LNG terminal, and the establishment of a common gas market for deliveries inside V4 may significantly contribute to determining a new physical direction of the gas flow in this part of Europe.
Źródło:
Eastern Review; 2020, 9; 131-148
1427-9657
2451-2567
Pojawia się w:
Eastern Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Position of County Government in the Security Space
Autorzy:
Karpiuk, Mirosław
Powiązania:
https://bibliotekanauki.pl/articles/1374978.pdf
Data publikacji:
2019
Wydawca:
Wyższa Szkoła Policji w Szczytnie
Tematy:
security
county
crisis management
natural disaster
Opis:
Security is a very important human need, which is addressed at all levels of local governance both by the central and local government bodies. As regards local government, the scope of tasks involving the provision of security on the local and regional levels has been adjusted to the capabilities (including financial) of individual local government units. Basic tasks are carried out at the municipal district level, supra-municipal tasks — at the county level, and regional tasks — at the provincial level, except that in the province there is a dualism of administration, meaning that administrative authority is shared between a central government-appointed governor, called the provincial governor, and an elected assembly called the regional council. In the case of the county, security-related tasks, as well as the competences relevant to this area, must be clearly defined in the act. At this level of public administration there is no presumption of competence for the benefit of the county authority. The county council performs the public tasks of a supra-municipal character set out by statute rather than the tasks not reserved for other entities. In order to ensure public order and safety of citizens, as well as fire and flood protection, the legislator authorises the county council to use technical means to record what is happening (CCTV cameras) in the area of public space, with the consent of the area manager or an entity holding a legal title to this area, or on the property and in civil structures constituting the property of the county or organisational units of the county, as well as in the area around such premises and structures, if it is necessary to ensure public order and the safety of citizens or provide fire and flood protection.
Źródło:
Internal Security; 2019, 11(1); 147-158
2080-5268
Pojawia się w:
Internal Security
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Natural and cultural lands capes of Equatorial Africa
Autorzy:
Gilarowski, Jerzy
Mikulska, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2032459.pdf
Data publikacji:
2006-06-01
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
natural landscape
cultural landscape
transformation
prediction
Opis:
This paper attempts to characterise various cultural landscapes in the area of Eąuatorial Africa. To achieve this, the contents of various thematic maps and satellite photos representing: areas covered with forests (mostly secondary forests), naturę reserves, areas of extensive and intensive agriculture and urban-industrial areas were overlaid with the contents of map of potential vegetation (which represent, to use a simplification, the natural, primeval landscape). The method applied allowed for distinguishing five types of cultural landscape that correspond to five levels of transformation of the primeval landscape. The resulting map shows a mosaic-like structure of landscapes. This structure changes constantly. The surface area of regions with a certain landscape type increases or decreases, or else the regions change their locations. A detailed analysis of socio-economic processes (and the related changes in the natural environment) can constitute a basis for a prediction of cultural landscape transformation. It is the author's opinion that such prediction could be applied in various planning projects.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2006, 12; 155-163
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Syntax in Pantomimic Re-enactments of Events Among Polish Participants
Autorzy:
Boruta, Monika
Placiński, Marek
Powiązania:
https://bibliotekanauki.pl/articles/1996831.pdf
Data publikacji:
2017-06-30
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
pantomime
natural word order
transitive events
Opis:
What appears to be a key question in recent studies on language evolution is the notion of natural word order-a hypothesis propounding word order to be innate in a phylogenetic and cognitive sense (Dryer, 2005; Pagel, 2009; Gell-Mann & Ruhlen, 2011). Gesture and sign studies provide a sound base for the topic. The primary idea for the study comes from Goldin-Meadow et al. (2008) research, which proposed the silent gesture paradigm, in which participants communicate simple events with the aid of their hands. The result of their research suggests that when participants communicate via gestures, notwithstanding their native language, they apply the SOV (subject-object-verb) word order-a finding which has been largely substantiated, but also discussed by following studies (e.g., Gibson et al., 2013; Hall et al., 2013). The purpose of our study was to verify whether the SOV order is prevalent in the experimental environment when participants are instructed to use whole-bodily pantomime rather than hand-and-arm gesture only. The actors in the study were instructed to perform reversible events from the pictures. Reversible events means that both the actor and the patient can perform an action. There exists an exciting opportunity for our study to shed a new light on research into natural word order.
Źródło:
Kultura i Edukacja; 2017, 2(116); 106-117
1230-266X
Pojawia się w:
Kultura i Edukacja
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Left and Right-Libertarianism
Autorzy:
Juruś, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/2010391.pdf
Data publikacji:
2016-06-30
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
libertarianism
property
equality
natural resources
redistribution
Opis:
In the paper I discuss theoretical differences between left and rightlibertarianism. (I will skip the specific and practical issues which differ left and rightlibertarians, including among others the minorities and immigration policies or affirmative action. I assume that practical solutions suggested by the followers of both positions stem from their theoretical assumptions.) I will focus on two issues which determine the fundamental difference between left and rightlibertarianism. These are property and equality. I compare standpoints of some leftlibertarians with the positions of rightlibertarians represented by Murray Rothbard, concerning property and equality. I conclude that the main and fundamental difference between leftand rightlibertarians concerns equality. Leftlibertarians are egalitarians whereas rightlibertarians are antiegalitarians. I also argue that egalitarian position is not compatible with the notion of full selfownership, which leftlibertarians advocate for.
Źródło:
Kultura i Edukacja; 2016, 2(112); 91-101
1230-266X
Pojawia się w:
Kultura i Edukacja
Dostawca treści:
Biblioteka Nauki
Artykuł

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