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Tytuł:
A statistical study of climate change in Ukraine under martial law
Autorzy:
Kobylynska, Тetiana
Legan, Iryna
Motuzka, Olena
Powiązania:
https://bibliotekanauki.pl/articles/10096948.pdf
Data publikacji:
2023-02-24
Wydawca:
Główny Urząd Statystyczny
Tematy:
climate change statistics
environmental and economic accounting
natural environment
statistical evaluation
ecological processes
Opis:
The article concentrates on the development of theoretical and methodological foundations of statistical research in the field of national environmental and economic accounting, which forms the basis for the development of indicators of climate change under martial law and shapes the adaptation to these changes. Given Russia's military aggression against Ukraine, the national statistical system is faced with an urgent task of ensuring the continuity of the production of complete and high quality statistical information. The issue of forming a methodology for the production of statistical information in the field of ecology, i.e. climate change statistics, remains unresolved. Outlining ways to address this issue is an important condition for the improvement of modern state statistics of Ukraine and the development of statistical theory and practice, as this largely determines the quality of the information-related support for environmental management at all levels. The statistical estimation of the dynamics and structure of greenhouse gas emissions on the basis of the economic activity of enterprises was performed. It was pointed out that among the various related branch methods of obtaining information, the system of environmental and economic accounting is the most relevant and source of high quality data. One of the aspects of solving the complex problem of forming methodological bases for collecting statistical environmental information is the creation of a national system of indicators of climate change and preparing statistical informational products using administrative data sources. The paper studies issues of producing ecological information relating to Ukraine according to statistical data. Moreover, the main problems which arise during the construction of national environmental accounts were characterised. Finally, the paper identified the key factors which influence to the largest extent the quality of statistical data and calculations, and which are necessary for the transformation and development of the statistical estimation of climate change under Russian military aggression.
Źródło:
Statistics in Transition new series; 2023, 24, 1; 63-87
1234-7655
Pojawia się w:
Statistics in Transition new series
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Processes of Natural Self-Cleaning of Small Watercourses with Increasing Anthropogenic Load in the Dniester River Basin
Autorzy:
Hnativ, Roman
Cherniuk, Volodymyr
Khirivskyi, Petro
Kachmar, Natalia
Lopotych, Natalia
Hnativ, Ihor
Powiązania:
https://bibliotekanauki.pl/articles/2202373.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
mountain river
surface waters
small river
natural self-cleaning
hydrodynamically active area
channel processes
Opis:
Small river basins are complex self-regulatory systems, as well as indicators of the state of the environment due to the level of anthropogenic pressure. Since any changes in the regime of small rivers are reflected in the entire hydrographic chain, the problem of estimating the anthropogenic load on small rivers of Ukraine is relevant for modern hydrochemistry and hydroecology. The main sources of water pollution are industrial and domestic effluents, which increase the inflow of pesticides, heavy metal ions, etc. Aquatic ecosystems of small rivers are subject to intense mechanical and biochemical effects, and about 80% of pollutants are washed into water bodies. Water bodies located on the territory or near large cities and urban areas are particularly exposed to man-made pollution. In the territory of the Dniester river basin, natural landscapes are maximally preserved in comparison with other regions of Western Ukraine, but in modern conditions we observe an increase in the negative anthropogenic impact on the quality of natural waters. Hydrodynamic barriers or hydrodynamically active areas (HAA) of mountain rivers, which are significantly saturated with oxygen in the water flow, which activates the processes of biochemical and biological self-cleaning of natural waters, are important to increase the efficiency of self-purification processes. Natural biological cleaning of pollutants in small rivers is highly effective due to the overgrowth of aquatic vegetation. The aim of the work was to establish the ability of the aquatic ecosystem of a small river to self-purify on the basis of hydrochemical indicators of water quality. The compliance with sanitary and hygienic requirements of hydrochemical indicators of Kolodnytsia river water of the right tributary of the Dniester was analyzed and possible regularities of their changes were established, as well as the main factors of anthropogenic impact on a small river and the possibility of laboratory modeling of such rivers. It was found that in the Kolodnytsia River the processes of self-cleaning are quite active, which are caused by the hydrological characteristics of the river and the presence of hydrodynamically active areas in the foothills of the basin. Therefore, at present there is no steady excess of pollutants relative to the MPC.
Źródło:
Journal of Ecological Engineering; 2023, 24, 2; 12--18
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Środowiskowe aspekty projektów rewitalizacyjnych na przykładzie Łodzi
Environmental Aspects of Revitalization Projects on the Example of Łódź
Autorzy:
Michaś, Rafał
Powiązania:
https://bibliotekanauki.pl/articles/17922460.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Opolski
Tematy:
rewitalizacja
zarządzanie procesami rewitalizacji
eko-miasto
sozologia
środowiskowe i przyrodnicze aspekty rewitalizacji miast
revitalization
management of revitalization processes
eco-city
sozology
environmental and natural aspects of urban regeneration
Opis:
Tematyka artykułu dotyczy środowiskowego aspektu procesów rewitalizacji, obecnie prowadzonych przez polskie miasta. Celem artykułu jest przedstawienie oraz analiza rozwiązań, które potrafią przystosować rewitalizowane obszary miast do aktualnych i przyszłych problemów klimatycznych, z którymi zmagają się miasta a także do zasad zrównoważonego rozwoju. Artykuł również dokona przedstawienia oraz oceny standardów projektowania i realizacji projektów rewitalizacyjnych na przykładzie Łodzi w kontekście przygotowania miast do drastycznie zmieniających się warunków klimatycznych oraz poprawy warunków rozwoju istniejącej zieleni miejskiej oraz określenia metod zwiększenie ilości zieleni w miastach i większości stref zurbanizowanych. Wybrane projekty rewitalizacyjne realizowane w Łodzi poddane zostaną szczegółowej analizie pod kątem zastosowanych rozwiązań ekologicznych oraz realizacji projektów zgodnie z zasadami zrównoważonego rozwoju. Obecnie można również odnotować słabe przygotowanie do zarządzania procesami rewitalizacji miast, w szczególności w wymiarze środowiskowym władz samorządowych jak i podmiotów prywatnych, co stanowi znaczący problem i barierę w rozwoju miast, a dla nauk w zakresie zarządzania publicznego – wyzwanie badawcze.
The subject of the article concerns the environmental aspect of revitalization processes currently carried out by Polish cities. The aim of the article is to present and analyze solutions that can adapt the revitalized areas of cities to the current and future climate problems that cities are struggling with, as well as to the principles of sustainable development. The article will also present and evaluate the standards of designing and implementing revitalization projects on the example of Łódź in the context of preparing cities for drastically changing climatic conditions and improving the conditions for the development of existing urban greenery and determining methods for increasing the amount of greenery in cities and most urbanized zones. Selected revitalization projects implemented in Łódź will be subject to a detailed analysis in terms of the applied ecological solutions and implementation of projects in accordance with the principles of sustainable development. Currently, there is also a poor preparation for the management of urban regeneration processes, in particular in the environmental dimension of local authorities and private entities, which is a significant problem and barrier to the development of cities, and for public management sciences - a research challenge.
Źródło:
Studia Miejskie; 2023, 45; 25-38
2543-5302
2082-4793
Pojawia się w:
Studia Miejskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative Study of Carvones from Various Essential Oils and Their Ability to Increase the Stability of Fat-Containing Products
Autorzy:
Frolova, Nataliia
Yushchenko, Nataliia
Korablova, Olga
Voitsekhivskyi, Volodymyr
Ocheretna, Alona
Synenko, Tetiana
Powiązania:
https://bibliotekanauki.pl/articles/1839130.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
essential oil
preparative isolation
carvone isomer
oxidation processes
natural antioxidants
Opis:
Carvone is a key component of essential oils from the Anethum graveolens L. (dill) and Mentha spicata L. (mint) plants. It was obtained in pure form by preparative isolation from the Mentha spicata essential oils. It has been established that essential oils contain carvone in various optically active forms. The essential oil of dill contains d-(R)-carvone (right-rotating isomer form) with a specific rotation of the plane of polarization [α]D + 62.5 + 0.05; mint essential oil from Mentha spicata contains l-(S)-carvone (left-rotating isomer form) with a specific rotation of the plane of polarization [α]D – 63.2 + 0.05. An organoleptic analysis reliably determined the aromatic characteristics of carvone: (S)-carvone of dill essential oil has a spicy aroma of fresh dill, in turn (R)-carvone of mint essential oil from Mentha spicata – has the aroma of cumin with menthol tones. The research of the method of accelerated oxidation proved that the introduction of antioxidants in the form of optical isomers into sunflower oil leads to an increase in the concentration of fat-containing products by 2.4–3.0 times by the values of peroxide number and 1.5–1.7 times by the values of acid number, in comparison with control. Comparing the effect of carvone optical isomers among themselves by the oxidation dynamics of fat-containing products, it was found that in general their protection effect is similar. However, the leftward carvone shows a higher effect on the resistance of sunflower oil as compared with the rightward carvone. Except for the protection from oxidation, the optical isomers of carvone can have a physiological effect on a human body. Thus, the optical isomers of carvone can add certain aromas to foodstuffs, and when functional fat-containing products are created, it is possible to use both optical forms of carvone, depending on the orientation of a new functional product.
Źródło:
Journal of Ecological Engineering; 2021, 22, 3; 239-248
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Konstruktywistyczna perspektywa wczesnej edukacji przyrodniczej
Constructivist perspective of early science education
Autorzy:
Michalak, Renata
Powiązania:
https://bibliotekanauki.pl/articles/1387049.pdf
Data publikacji:
2020-12-31
Wydawca:
Uniwersytet Gdański. Wydawnictwo Uniwersytetu Gdańskiego
Tematy:
early natural education
constructivism
research processes
outdoor education
scientific inquiry
Opis:
This article reflects on how to use children’s natural curiosity in early science education and make learning a meaningful, joyful and useful experience for them. Therefore, an attempt was made to show the essence of the constructivist model of teaching natural science to the youngest students by referring to the strategy of teaching through inquiry and outdoor education.
Źródło:
Problemy Wczesnej Edukacji; 2020, 51, 4; 99-113
1734-1582
2451-2230
Pojawia się w:
Problemy Wczesnej Edukacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Main elements of investigation of measures of vibration energy propagation in structures
Elementy główne badania miar rozpływu energii drgań w konstrukcjach
Autorzy:
Jeleniewicz, K.
Zółtowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/2084027.pdf
Data publikacji:
2020
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
modal analysis
natural vibrations
modeling of vibration processes
Opis:
The paper indicates the possible range of applications of investigation of measures of vibration energy propagation, used in modeling of vibration processes and methods of modal analysis in the area of research methodology and detailed methodologies of technical sciences. Theoretical analyzes and practical verification of results of testing of many different materials and structures indicate a wide range of applications of the described achievements. Recognizing the need to improve methods of testing of building structures in order to assess their degradation state, this work presents generalized, significant results of a research procedure within the scope of verification of the effectiveness of the developed methodologies for detailed application of vibration measures in simulation, bench and operation tests.
Źródło:
Acta Scientiarum Polonorum. Architectura; 2021, 20, 1; 77-86
1644-0633
Pojawia się w:
Acta Scientiarum Polonorum. Architectura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Czysto ludzka sprawa? Archeologiczne przywracanie pamięci o trudnej przeszłości przez tropienie naturo-kulturowych przemian cmentarzy wojennych
Simply human case? Archaeological revival of the memory about the difficult past, through the tracing of nature-cultural transformations of the war cemeteries
Autorzy:
Zalewska, Anna
Cyngot, Dorota
Czarnecki, Jacek
Kiarszys, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/1023862.pdf
Data publikacji:
2019-09-16
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
war cemeteries
the Great War
central Poland
creation
transformation
decay
destruction
history
archaeology
remote sensing
natural-cultural phenomena and processes
difficult past
material warnings
contemporaneous archaeology
Opis:
In this article the outcomes of historical, archaeological, spatial and anthropological research concerning material remnants of the war cemeteries left by the Great War in Central Poland, in the area of Rawka and Bzura are presented. On the example of one of the four communes (Nowa Sucha) subjected to research under the project Archaeological Revival of Memory of the Great War (ARM), the processes of creation, transformation, decay, destruction and re-making present the resting places of the soldiers fallen between December 1914 and July 1915 are shown. In the first part, we sketch the output atmosphere that accompanied the primary context in which war cemeteries were established and place the war cemeteries in the network of social, formal and legal determinants. In the second part, we frame the historical and social contexts in which the resting places of the fallen soldiers of the German and Russian armies were massively created. Than, we show the difficulties associated with locating particular war cemeteries and signal strengths and obstacles in correlating results of archival research and use of remote sensing and archaeological methods in order to restore the memory of war cemeteries and establish their current and future condition as material warnings. Also we stress the looping of cultural and natural factors both in the process of protecting and destroying material condition of war cemeteries. Finally, on the example of one of the cemeteries we show how slow and arduous but at the same time promising can be the process of transformation from a forgotten/plowed cemetery into a place of/in memory, and as an agent struggling with the continuous nature-cultural transformations.
In this article the outcomes of historical, archaeological, spatial and anthropological research concerning material remnants of the war cemeteries left by the Great War in Central Poland, in the area of Rawka and Bzura are presented. On the example of one of the four communes (Nowa Sucha) subjected to research under the project Archaeological Revival of Memory of the Great War (ARM), the processes of creation, transformation, decay, destruction and re-making present the resting places of the soldiers fallen between December 1914 and July 1915 are shown. In the first part, we sketch the output atmosphere that accompanied the primary context in which war cemeteries were established and place the war cemeteries in the network of social, formal and legal determinants. In the second part, we frame the historical and social contexts in which the resting places of the fallen soldiers of the German and Russian armies were massively created. Than, we show the difficulties associated with locating particular war cemeteries and signal strengths and obstacles in correlating results of archival research and use of remote sensing and archaeological methods in order to restore the memory of war cemeteries and establish their current and future condition as material warnings. Also we stress the looping of cultural and natural factors both in the process of protecting and destroying material condition of war cemeteries. Finally, on the example of one of the cemeteries we show how slow and arduous but at the same time  promising can be the process of transformation from a forgotten/plowed cemetery into a place of/in memory, and as an agent struggling with the continuous nature-cultural transformations.
Źródło:
Folia Praehistorica Posnaniensia; 2018, 23
0239-8524
2450-5846
Pojawia się w:
Folia Praehistorica Posnaniensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the tribology processes of control valves of medium speed marine internal combustion engines
Analiza procesów tribologicznych zaworów rozrządu średnioobrotowych okrętowych silników spalinowych
Autorzy:
Monieta, J.
Powiązania:
https://bibliotekanauki.pl/articles/190237.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
marine internal combustion engine
inlet and outlet valves
tribological nodes
natural exploitation
tribological processes
evolution of wear
okrętowe silniki spalinowe
zawory dolotowe i wylotowe
węzły tribologiczne
naturalna eksploatacja
procesy tribologiczne
ewolucja zużycia
Opis:
The article presents an analysis of phenomena of selected elements of piston internal combustion engines cooperating with the combustion chamber and issues related to tribological aspects. It shows an attempt to assess the state of the tribological nodes: the valve stem – valve guide and valve head – valve seat in random natural conditions. Passive and passive-active experiments were conducted in the conditions of the operation of sea ships. The effects of complex and changeable inputs were examined on the value of the normal and pathological wear in the operation of medium-speed engines. Images of wear and damaged items of tribological nodes were studied. Analysis was conducted of digital images of real objects and using an optical microscope and measurements of macro- and micro-geometry. An identification of basic processes of wear was taken.
Artykuł prezentuje analizę zjawisk wybranych elementów tłokowych silników spalinowych współpracujących z komorą spalania oraz zagadnienia tribologiczne. Przedstawiono próbę oceny stanu węzłów tribologicznych: trzon – prowadnica i grzybek – gniazdo zaworu w losowych warunkach naturalnej eksploatacji. Prowadzono bierny i bierno-czynny eksperyment w warunkach eksploatacji statków morskich. Badano skutki złożonych i zmiennych wymuszeń na wartości normalnego i patologicznego zużycia w eksploatacji silników średnioobrotowych. Badano obrazy zużycia i uszkodzonych elementów węzłów tribologicznych. Wykonano analizy obrazów cyfrowych rzeczywistych obiektów i z zastosowaniem mikroskopu optycznego oraz pomiary makro- i mikrogeometrii. Podjęto identyfikację elementarnych procesów zużycia.
Źródło:
Tribologia; 2017, 274, 4; 55-63
0208-7774
Pojawia się w:
Tribologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Puszcza Białowieska - obiekt światowego dziedzictwa UNESCO - priorytety ochronne
The Bialowieza Forest – a UNESCO Natural Heritage Site – protection priorities
Autorzy:
Kujawa, A.
Orczewska, A.
Falkowski, M.
Blicharska, M.
Bohdan, A.
Buholz, L.
Chylarecki, P.
Gutowski, J.M.
Latałowa, M.
Mysłajek, R.W.
Nowak, S.
Walankiewicz, W.
Zalewska, A.
Powiązania:
https://bibliotekanauki.pl/articles/1294308.pdf
Data publikacji:
2016
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
Puszcza Bialowieska
Swiatowe Dziedzictwo Kulturowe i Przyrodnicze UNESCO
wartosc przyrodnicza
las naturalny
ochrona przyrody
roznorodnosc gatunkowa
siedliska przyrodnicze
specjalne obszary ochrony siedlisk
natural forests
nature protection
biodiversity
natural ecological processes
forest management
Opis:
Despite the fact that only parts of the Białowieża Forest are protected as a national park and nature reserves, the forest is nevertheless as a whole considered a U NESCO Natural Heritage Site, Biosphere Reserve and an integrated Natura 2000 site. In the presently ongoing debate on the conservation priorities regarding the natural value of this forest and the current bark beetle outbreak, two distinct approaches can be recognized: (1) management assumed to involve considerable interference with the forest ecosystems; (2) maintenance of ecological processes and spontaneous restoration of the forest communities. The Białowieża Forest – especially its strictly protected parts – is a “bastion” where species characteristic of ancient forests (including so-called primeval forest relicts) have survived until today. This has been achieved by maintaining the forest’s complexity in areas with considerably reduced human influence, but most of all by maintaining a full spectrum of forest communities, naturally developing forests diverse in age, species composition and spatial structure including stand dieback and breakdown. The following factors need to be taken into account in the protection of the Natural Heritage Site: (1) the internationally recognized value of the Białowieża Forest including its biodiversity, the level of preservation of forest communities and the ongoing natural processes; (2) existing documents and policies concerning nature conservation; (3) research findings from the Białowieża Forest and other natural forest complexes. The key priority is to limit any activities in this forest to an indispensable minimum, mostly concerning security close to roads and tourist tracks as well as collection of fire wood by locals. Without this strict protection, successive and slow anthropogenic transformation will result in the Białowieża Forest sharing the same fate as other forest complexes of the temperate climate zone in Europe or America and lose its globally appreciated value.
Źródło:
Leśne Prace Badawcze; 2016, 77, 4
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Puszcza Białowieska: czym była, czym jest, czym ma być w przyszłości?
Bialowieza Forest: what it used to be, what it is now and what we want it to be in the future
Autorzy:
Szwagrzyk, J.
Powiązania:
https://bibliotekanauki.pl/articles/1294650.pdf
Data publikacji:
2016
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
Puszcza Bialowieska
las naturalny
ochrona przyrody
gospodarka lesna
natural processes
nature conservation
old-growth stands
Opis:
For many centuries, management of the Białowieża Forest has not focused on timber production. Therefore, despite hunting, grazing by domestic animals and sporadic cutting of valuable trees the forest has retained its natural character. After World War I, a small part of the Białowieża Forest was protected as a reserve that later became a national park, while the remainder was managed for timber. After World War II, the protection status of the Polish part of the Białowieża Forest was maintained with the national park at the center surrounded by managed stands. During the last few decades, the national park was enlarged and new reserves were established. However, the majority of the Białowieża Forest is still managed for timber. The forest management has been sustainable for decades and in the last few years logging has even been strongly reduced, to a level comparable with some national parks. In recent years the Białowieża Forest, like many areas in Central Europe, has been plagued by a high spruce mortality caused by bark beetles. In managed forests, cutting the infested spruces and removing them from the forest is a standard practice aimed at reducing the growth rate of the bark beetle population. This, however, raises the question of whether we expect the Białowieża Forest to remain a managed forest, in which case the fight against bark beetles would be justified, or whether we want it to be converted into a large national park? In the latter case, cutting trees to fight bark beetles would be inconsistent with the aim of conservation. Recent discussions concerning the Białowieża Forest have been dominated by two different ideologies for nature protection. The first approach aims at protecting nature to make it sustainable, beautiful and healthy. In the second approach, protecting nature is achieved by removing any direct human influence, even if the resulting natural environment does not meet our expectations.
Źródło:
Leśne Prace Badawcze; 2016, 77, 4
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in the flotation kinetic of bituminous coal before and after natural weathering processes
Autorzy:
Xia, W.
Peng, Y.
Ren, C.
Xie, G.
Liang, C.
Powiązania:
https://bibliotekanauki.pl/articles/951864.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
flotation kinetic
classical first-order rate constant
natural weathering processes
XPS
contact angle
Opis:
Natural weathering processes can make coal surface more hydrophilic due to the increase of content of hydrophilic functional groups (C-O, C=O, and COOH) and the decrease of content of hydrophobic functional groups (C-C and C-H) on coal surface, and hence the flotation recovery of fine coal is reduced. In this paper, a series of flotation tests were conducted in order to investigate the changes in the flotation kinetic of bituminous coal before and after natural weathering processes. Additionally, XPS was used to indicate the changes in surface properties of bituminous coal. In the investigations the flotation kinetic was changing. The classical first-order rate constant (k) of bituminous coal flotation was reduced after the natural weathering processes. A relationship between the classical first-order rate constant (k) and the hydrophilicity ability (HA) was given.
Źródło:
Physicochemical Problems of Mineral Processing; 2015, 51, 2; 401-410
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ekonomia ewolucyjna jako jeden z nurtów współczesnej ekonomii – zarys problematyki
Evolutionary Economics as a Trend in Modern Economics: An Overview
Autorzy:
Zalega, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/1810867.pdf
Data publikacji:
2015-11-15
Wydawca:
Uniwersytet Warszawski. Wydawnictwo Naukowe Wydziału Zarządzania
Tematy:
ewolucja
ewolucjonizm
ekonomia ewolucyjna
procesy ewolucyjne
dobór naturalny
teoria ewolucji
evolution
evolutionism
evolutionary economics
evolutionary processes
natural selection
theory of evolution
Opis:
Ekonomia ewolucyjna zaliczana jest do ekonomii heterodoksyjnej, której obszar zainteresowań koncentruje się na zagadnieniach związanych ze zmianami zachodzącymi w systemie ekonomicznym oraz ich przesłankami i konsekwencjami. Współczesna ekonomia ewolucyjna, akceptując, że rzeczywistość jest dynamiczna, skupia się na badaniu tego, w jaki sposób ewoluuje gospodarka, szukając źródeł i mechanizmów dynamiki. W tych stwierdzeniach można zawrzeć podstawowy wyróżnik ontologiczny i metodologiczny ekonomii ewolucyjnej. Celem artykułu jest zdefiniowanie ekonomii ewolucyjnej, a także przedstawienie jej historycznych korzeni, współczesnych poglądów oraz perspektywy rozwoju. Zagadnienia przedstawione w opracowaniu nie opisują całego jej spektrum, a jedynie wybrane elementy. Artykuł ma charakter teoretyczny i składa się z pięciu części. W pierwszej części tekstu skupiono się na wyjaśnieniu pojęcia i kluczowych założeń ewolucjonizmu w naukach społecznych. W dalszej części artykułu omówiono istotę ekonomii ewolucyjnej, a także przedstawiono jej korzenie. Z uwagi na wymogi objętościowe czasopisma skoncentrowano się wyłącznie na prezentacji poglądów najważniejszych przedstawicieli tej dyscypliny naukowej. W końcowej części artykułu, w sposób syntetyczny, przybliżono najważniejsze słabości ekonomii ewolucyjnej oraz perspektywy jej rozwoju.
Evolutionary economics is considered to be part of heterodox economics, which focuses on developments in the economic system, their reasons and consequences. Accepting that the reality is dynamic, contemporary evolutionary economics examines the ways in which the economy evolves, seeking origins and mechanisms of its dynamics. These statements reflect the fundamental ontological and methodological characteristics of evolutionary economics. This article aims at defining evolutionary economics and presenting its historical roots, current views and prospects for development. The issues put forward do not describe its entire range, but only selected elements. This paper is theoretical and consists of five parts. The first part concentrates on explaining the concept and key assumptions of evolutionism in social sciences. Further, the essence of evolutionary economics and its origins are discussed. Owing to the length requirements, the focus is exclusively on presenting the views of the most prominent representatives of this scientific discipline. The final part synthesises fundamental weaknesses of evolutionary economics and prospects for its development.
Źródło:
Studia i Materiały; 2015, 2/2015 (19); 157-177
1733-9758
Pojawia się w:
Studia i Materiały
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phase equilibria for liquefi eld natural gas (LNG) as a multicomponent mixture
Autorzy:
Włodek, T.
Powiązania:
https://bibliotekanauki.pl/articles/299072.pdf
Data publikacji:
2015
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
LNG
liquefied natural gas
thermodynamic processes
cryogenics
VLE calculations
phase equilibria
Opis:
Liquefied natural gas (LNG) has an increasingly important role in the global natural gas market. Global demand for natural gas will grow over the coming years. LNG is transported by ships to unloading points on the storage terminals. During the LNG unloading and storage processes some part of LNG evaporates into gas phase and causes changes in the composition of stored LNG. The main component of LNG is methane, the remaining components are primarily ethane, propane, butane and nitrogen. Depending on the participation of these components the basic thermodynamic parameters of LNG can significantly change. LNG is also product sensitive to changes of temperature. In order to better prediction of changes of individual paramete rs of stored LNG caused by changes of temperature and LNG composition vapor-liquid equilibrium (VLE) calculations are performed for cryogenic conditions using equations of state.
Źródło:
AGH Drilling, Oil, Gas; 2015, 32, 3; 539-550
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selected thermodynamic aspects of liquefied natural gas (LNG) pipeline flow during unloading process
Autorzy:
Włodek, T.
Łaciak, M.
Powiązania:
https://bibliotekanauki.pl/articles/299121.pdf
Data publikacji:
2015
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
LNG
liquefied natural gas
unloading operations
thermodynamic processes
cryogenics
LNG terminal
Opis:
Liquefied natural gas (LNG) is transported by ships to unloading points on the LNG terminals, where the LNG is transported by above-ground superinsulated pipelines to storage tanks. Storage tanks are located a few hundred meters to several kilometers away from the unloading point. The article shows the changes in the basie thermodynamic parameters of liquefied natural gas during the flow in the pipeline modeled for an exemplary unloading process for different variants using Peng-Robinson equation of state.
Źródło:
AGH Drilling, Oil, Gas; 2015, 32, 2; 275-287
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Combined heat and power systems in liquefied natural gas (LNG) regasification processes
Autorzy:
Łaciak, M.
Nagy, S.
Włodek, T.
Powiązania:
https://bibliotekanauki.pl/articles/299133.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
LNG
liquefied natural gas
unloading operation
thermodynamic processes
cryogenics
LNG terminal
combined heat and power systems
Opis:
Adaptation of liquefied natural gas (LNG) to the quality requirements for natural gas transportation pipeline system is a high energy intensive process. The energy for this process can be obtained include from waste heat in the industry processes, steam power blocks or sea water in LNG unloading terminal. Another way of obtaining the heat is burning of gas or other fuels. A large temperature difference between the heat sources in each of these cases, and the low temperature of LNG can be used to control of the pumping engine operation, it can pro vi de optimization and reduction of the costs. Liquefied natural gas (LNG) can be used as a source of cold to the increasing power of the cogeneration process. The article examines some practical cogeneration solutions (combined heat and called power - CHP), which can improve the efficiency of the process of regasification of LNG.
Źródło:
AGH Drilling, Oil, Gas; 2014, 31, 1; 91-98
2299-4157
2300-7052
Pojawia się w:
AGH Drilling, Oil, Gas
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 22

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