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Wyświetlanie 1-15 z 321
Tytuł:
Characteristics of sorbent products obtained by the alkaline activation of waste from waste incineration plants
Autorzy:
Grela, Agnieszka
Łach, Michał
Bajda, Tomasz
Mikuła, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/127590.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Mineralogiczne
Tematy:
alkali-activated
ash from waste incineration
slag from waste incineration
Opis:
Poland, by 2020 430,000 Mg of hazardous waste will be formed annually by the combustion of waste. This waste must be properly managed so as not to endanger the environment. One promising way to manage selected waste is to process it in the synthesis of materials characterised by sorption properties. The results presented in this paper concern the possibility of producing sorbents from waste materials marked with codes 190112 and 190114, which came from two waste incineration plants in Poland. Alkaline activation was performed using two methods: a) hydrothermal, in a solution of 8 M NaOH at 75°C for 24 h; and b) in an autoclave, using a solution of 2 M NaOH at 140°C for 6 h. XRD analyses led to the identification of materials after synthesis of the following zeolite phases: analcime, chabazite and thomsonite. chabazite and analcime can be valuable absorbent materials.
Źródło:
Mineralogia; 2017, 48, 1/4; 87-105
1899-8291
1899-8526
Pojawia się w:
Mineralogia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Freedom from fear
Autorzy:
Koba, Laura
Powiązania:
https://bibliotekanauki.pl/articles/40406045.pdf
Data publikacji:
2023-12-31
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
Freedom from fear
human rights
individual security
flight from freedom
Opis:
Freedom from fear is one of the four freedoms (along with freedom of speech, freedom of religion, freedom from want) that President Franklin D. Roosevelt presented first to the US Congress on 6 January 1941, and later to the entire world in the fight against Germany, Italy and Japan. They covered all areas of human life, guaranteeing security in the private and family spheres, in public life and in relations with other people and, above all, with any authority (especially the State). These freedoms became the basis of the human rights enshrined in the Universal Declaration of Human Rights, proclaimed on 10 December 1948, and other national and international documents. Freedom from fear has become a symbol of the protection of human rights and a guarantee of a safe life for every person everywhere in the world. The vast majority of conflicts in the world originate within national borders and their main victims are innocent civilians. States have a primary duty to protect everyone. They must create strong security instruments to prevent a repetition of the crimes of the Second World War. The quest for universal and individual security is constantly intertwined with new threats that grow with the development of civilisation, in particular through the evolution of technology and information. Today, we are also confronted with various aggressors - bandit states, cruel terrorists and populist governments on the verge of enslavement and incitement to violence. Education, cooperation, human rights and shared responsibility for others build respect for every human being - not only fellow citizens, but other people from distant parts of the global village. This shared responsibility began in the Congress of the United States of America on 6 January 1941.
Źródło:
Reality of Politics; 2023, 26; 45-57
2082-3959
Pojawia się w:
Reality of Politics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simulations of fuels consumption in the CHP system based on modernised GTD-350 turbine engine
Autorzy:
Hryniewicz, Marek
Roman, Kamil
Powiązania:
https://bibliotekanauki.pl/articles/2048532.pdf
Data publikacji:
2021
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
biomass
cogeneration
electricity production from biomass
heat production from biomass
mathematical modelling
turbine engine
Opis:
There were done simulations of fuels consumption in the system of electrical energy and heat production based on modernised GTD-350 turbine engine with the use of OGLST programme. In intention the system based on GTD-350 engine could be multifuel system which utilise post-fying vegetable oil, micronised biomass, sludge, RDF and fossil fuels as backup fuels. These fuels have broad spectrum of LHV fuel value from 6 (10 6 J•kg -1 ) (e.g. for sludge) to 46 (10 6 J•kg-1) (for a fuel equivalent with similar LHV as propan) and were simulations scope. Simulation results showed non linear dependence in the form of power function between unitary fuel mass consumption of simulated engine GTD-350 needed to production of 1 kWh electrical energy and LHV fuel value (10 6 J•kg -1). In this dependence a constant 14.648 found in simulations was multiplied by LHV raised to power - 0.875. The R2 determination coefficient between data and determined function was 0.9985. Unitary fuel mass consumption varied from 2.911 (kg•10 -3•W -1•h -1) for 6 (10 6 J•kg -1) LHV to 0.502 (kg•10 -3 •W -1 •h -1) for 46 (10 6 J•kg -1) LHV. There was assumed 7,000 (h) work time per year and calculated fuels consumption for this time. Results varied from 4,311.19 (10 3 kg) for a fuel with 6 (10 6 J•kg -1) LHV to 743.46 (10 3 kg) for a fuel with 46 (10 6 J•kg -1) LHV. The system could use fuels mix and could be placed in containers and moved between biomass wastes storages placed in many different places located on rural areas or local communities.
Źródło:
Journal of Water and Land Development; 2021, 51; 250-255
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Flue gas cleaning in municipal waste-to-energy plants - Part 1
Autorzy:
Jurczyk, M.
Mikus, M.
Dziedzic, K.
Powiązania:
https://bibliotekanauki.pl/articles/101644.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
waste incineration
gas cleaning
environmental protection
solid residues from APC
solid residues from HM
Opis:
All plants based on combustion of the fuel generate a large number of flue gases, which contain variety of pollutants. These include particulates, heavy metals (Hg, Cd, Tl, As, Ni, Pb), carbon compounds (CO, hydrocarbons (VOCs), (PCDD / F, PCB), acid and other gases (HCl, HF, HBr, HI, SO2 , NOx , NH3 ), whose emissions are controlled, and subjected to the European and regional limits. In municipal waste-to-energy plants large diversity of fuel results in a considerable concentration of the individual compounds which can be dangerous for the environment. Due to these facts, it is necessary to take into account a flue gas cleaning stage in every waste-to-energy plant. The article divided into two parts shows technologies and processes that can be used at this stage. It describes methods used to deal with all kinds of pollutants at flue gases treatment stage. The paper presents emission limits imposed by the European Union with examples of emissions at working municipal waste-to-energy plants, and the limits that are to be expected in the future. Some topics, as costs and residual handling, are only briefly mentioned and for more information a reader is advised to use literature which will allow him to learn more about technology, processes and problems presented in the text. The aim of the study is to present the current state of flue gas cleaning in Waste-to-Energy plants.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2016, IV/1; 1179-1193
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of SPE for selective fractionation of essential oils constituents from plant materials
Autorzy:
Szewczyk, Joanna
Dybowski, Michał P.
Dawidowicz, Andrzej L.
Powiązania:
https://bibliotekanauki.pl/articles/764050.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
SPE
essential oils from herbs
fractionation
Opis:
Solid-phase extraction (SPE) is simple and inexpensive sample preparation procedure which can be applied for the isolation/fractionation of essential oil compounds from wide variety of samples, such as foodstuffs, biological and environmental. Due to the complex nature of the examined matrices and frequently low concentration level of target components, analytical procedures require the use of initial sample preparation stage. The paper shows the possibility of essential oil components fractionation from different plant materials using SPE method. The results presented in this paper shows that the proposed SPE procedure allows for easy and total fractionation of essential oil constituents (especially low-molecular oxygen compounds) from the sample matrix.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia; 2015, 70, 2
2083-358X
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A decision on permanent inability for service as a basis for obligatory discharge from service in the Police
Autorzy:
GACEK, PAWEŁ
Powiązania:
https://bibliotekanauki.pl/articles/1798803.pdf
Data publikacji:
2020-08-28
Wydawca:
Wyższa Szkoła Policji w Szczytnie
Tematy:
Police
dismissal from service in the Police
administrative decision
Police officer
discharge from official duties
Opis:
This article is entirely devoted to the issue of discharge from ser-vice in the Police under Article 41(1)(1) of the Police Act. Exemption on this legal basis requires that a medical committee must issue a medical certifi cate to the police offi cer, which states that he/she is totally incapable of serving in the Police. This must be a fi nal decision. Issuing a fi nal ruling requires the superior in charge of personal matters to discharge the police offi cer from offi cial duties in the Police, before he/she is dismissed from service. During the period of dismissal from offi cial duties, the police offi cer retains the right to full salary despite not performing service duties.
Źródło:
Przegląd Policyjny; 2020, 138(2); 147-172
0867-5708
Pojawia się w:
Przegląd Policyjny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Economic Integration and Migrant Networks: The Case of Ukrainian Migrants in the Warsaw Agglomeration
Autorzy:
Maruszewski, Wojciech
Kaczmarczyk, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/1356317.pdf
Data publikacji:
2020-12-31
Wydawca:
Uniwersytet Warszawski. Wydział Nauk Ekonomicznych
Tematy:
economic integration
earnings
immigration from Ukraine
Opis:
In the past years, Poland has been not only a country of (mass) immigration but also a country where foreigners have begun to play a much larger role in the domestic labour market than ever before. This makes the analyses of foreigners’ integration increasingly important both to understand the situation of immigrants in Poland and their impact on the national economy and social processes. In this context, this article aims to quantify one of the dimensions of the economic integration of immigrants. We look at the level of earnings as one of the indicators of their integration process. Additionally, we refer to the impact of social capital (in the form of migrant networks) on the economic situation of immigrants. We focus on immigrants from Ukraine—the most numerous group of foreigners in Poland. Based on a unique data set, we empirically identify the key dimensions that have an impact on their incomes, including gender, employment sector and legal status. We also point to the statistically significant effects of migrant networks on migrants’ earnings.
Źródło:
Central European Economic Journal; 2020, 7, 54; 258 - 278
2543-6821
Pojawia się w:
Central European Economic Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Parametric method applicable in assessing breakout force and time for lifting slender bodies from seabed
Autorzy:
Michalski, Jan P.
Powiązania:
https://bibliotekanauki.pl/articles/258500.pdf
Data publikacji:
2020
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
lifting objects from the seabed
breakout force
force needed to extricate the object from the seabed
Opis:
The article presents a parametric method applicable in assessing the suction force of a slender body to the seabed, and prognosing the body extrication time. Along with the body weight in water, the information on the suction force is essential for assessing the force needed to lift the object from the seabed. Based on the Foda theory and the resulting integral equation, which relates the maximum suction force with basic parameters of the issue of concern, the parametric method has been developed which can be widely applied in engineering practice of lifting objects. A set of discrete values of parameters selected from the range of typical values for engineering practice was the basis for developing algebraic formulas approximating the integral Foda equation for slender bodies. The included results of tests present the variability of suction force characteristics and the envelopes of maximum forces needed to extricate the body from the seabed.
Źródło:
Polish Maritime Research; 2020, 2; 69-75
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Utopian Elements in Porphyry’s De abstinentia
Autorzy:
Di Serio, Chiara
Powiązania:
https://bibliotekanauki.pl/articles/1032071.pdf
Data publikacji:
2020-12-23
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
golden age
abstinence from meat
sexual abstinence
remoteness from civilization
familiarity with the sacred
utopian lifestyle
Opis:
In the long passage of De abstinentia, IV, 2–18, Porphyry mentions a series of “groups” (ἔθνη) as examples of abstinence from animal food: the ancient Greeks of the “golden age”, the Lacedaemonians of Lycurgus’ era, the Egyptian priests, the Essenes among the Jews, the Magi among the Persians and the gymnosophists among the Indians. Such an association does not seem at all accidental, since Porphyry refers to a tradition in which these communities have similar habits of life, including the prohibition of eating meat and drinking wine, sexual abstinence, absence of diseases and wars, separation from the civil sphere, devotion to the sacred. All these elements constitute the specific connotation of a human existence that evokes the “time of the origins”, substantially a paradisiac dimension, far from history. It is a deliberate symbolic shift. This brief research will investigate the reasons and the deep meaning of the connection based on utopian life traits.
Źródło:
Studia Ceranea; 2020, 10; 47-61
2084-140X
2449-8378
Pojawia się w:
Studia Ceranea
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of Emergencies Threatening a Particular Region
Autorzy:
Végsöová, Oľga
Straka, Martin
Šofranko, Marian
Powiązania:
https://bibliotekanauki.pl/articles/1811797.pdf
Data publikacji:
2019
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
floods from precipitation
floods from watercourses
natural disasters
landslides
slope movement
earthquakes
volcanic eruptions
natural fires
Opis:
The paper focuses on emergencies in a particular region of the Slovak Republic. The focus is mainly on describing the emergencies to which the region is most vulnerable and classifying them, as well as specific locations or businesses where there is a high risk of an emergency occurring. From the point of view of the effects of possible emergencies on the district of Bratislava, the most likely situations are natural disasters (floods from precipitation and watercourses, hailstorms, storms, landslides, ice) and accidents (fires, explosions and releases of dangerous substances). When planning rescue work, it is necessary to start from the worst-case scenario of the emergency, while the most important measure to protect the population is issuing warnings and possible evacuation. Special attention should be paid to the following measures: checking the safety measures around hydrological structures and watercourses, carrying out checks on legal entities and natural persons – entrepreneurs who manufacture, store and handle hazardous substances, preparing controlling organizations, forces and resources to carry out rescue work, preparing the population for self-protection and mutual assistance in the event of emergencies, mutual cooperation of rescue teams in preparation for emergencies, exchange of experience and knowledge with neighbouring districts.
Źródło:
Rocznik Ochrona Środowiska; 2019, Tom 21, cz. 1; 52-68
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Pollutants Emission into the Air at the Stage of an Electric Vehicle Operation
Autorzy:
Marczak, Halina
Droździel, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/1955495.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
electric car
efficiency of thermal power plants
emissions from vehicles
electricity from coal
vehicle operation stage
Opis:
The article discusses the research on CO2 emissions at the stage of electric engine vehicle operation. The operation stage includes, among others use of the vehicle as well as maintenance and charging for the vehicle’s propulsion. The origin of the electricity consumed during charging has an impact on the vehicle’s emissions balance. The scope of considerations concerns coal as the main energy carrier in Poland. The obtained results can be a benchmark for comparing other primary energy sources used for electricity production. Based on the collected technical data of electric cars, the values of CO2 emission factors from electricity production in thermal power plants and data on the state and structure of electricity production in Poland, an analysis of CO2 emissions from electric vehicles in the operational stage was performed. The vehicle’s electricity consumption of 0.14–0.16 kWh/km is accompanied by CO2 emissions of 100.94–115.36 g/km. The calculated CO2 exceeds the EU limit value from 01/01/2020 (95 g/km) for average CO2 emissions from new passenger vehicles. The main message of the work is the statement that increasing the efficiency of the electricity generation process in commercial thermal power plants in Poland will translate into a reduction in the emission of electric cars consuming this energy for propulsion. The research shows that the change in the efficiency of energy transformations in a thermal power plant from 38% to 46% leads to a reduction in the emission of an electric vehicle by over 17%. The emission of CO2 from a passenger car with a compression-ignition engine is discussed. The considerations include the stage of the use of the vehicle and the stage of production of diesel oil, which is consumed during the use of the vehicle.
Źródło:
Journal of Ecological Engineering; 2021, 22, 8; 182-188
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Situation of Forced Migrants from Ukraine in Europe after Russian Military Aggression and the Problems of Ukraine’s Migration Policy in These New Conditions
Autorzy:
Pozniak, Oleksiy
Powiązania:
https://bibliotekanauki.pl/articles/2233814.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Ukraine
forced migrants from Ukraine
Russian war against Ukraine
forced migrants from Ukraine in Europe
migration policy
Opis:
This article assesses the situation of forced migrants from Ukraine in European countries. I use data from the Statistical Bureaux and sociological institutions of Ukraine and recipient countries and from international organisations. Semi-structured interviews with experts were conducted in order to expand the information base of the research and obtain more substantiated analytical results and the trends of forced migration from Ukraine since 24 February 2022 were investigated. An attempt was made to explain the difference between the data from various sources regarding the migration of Ukrainians caused by the Russian war against Ukraine. The hierarchy of problems of forced migrants from Ukraine is determined on the base of in-depth interviews of experts. An attempt was made to estimate the impact of the forced migration of Ukrainians on local markets of goods and services. The recommendations for minimising the irreversible migration losses of the population of Ukraine are developed.
Źródło:
Central and Eastern European Migration Review; 2023, 12, 1; 159-181
2300-1682
Pojawia się w:
Central and Eastern European Migration Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tourist development between security and terrorism: empirical evidence from Europe and the United States
Autorzy:
Stankova, Mariya
Tsvetkov, Tsvetomir
Ivanova, Lyubov
Powiązania:
https://bibliotekanauki.pl/articles/19090919.pdf
Data publikacji:
2019
Wydawca:
Instytut Badań Gospodarczych
Tematy:
terrorism
revenues from international tourism
managing uncertainty
Opis:
Research background: Today's world is torn between extreme conservatism and duality, in opposition, trying to break the classical framework of freedom in the movement of people. In the context of complex global relations, this impulse, especially related to the travels for tourism purposes, raises new issues concerning the safety and security. The tourism industry has a priority for the economic development of many countries in the world and is a large source of export earnings and, at the same time, an important factor in the balance of payments of a significant part of the national economies in the world. The growing importance of the tourism industry, however, puts tourist destinations worldwide at the forefront of new challenges, one of which is terrorism. In this environment, new relationships are emerging and this reflects on the development strategies, as well as on the financial outcomes of tourism industry which are also largely affected. Purpose of the article: Respecting the new realities, the study explores the link between the risk of terrorism and the revenues from international tourism. Its main purpose is to investigate the impact of terrorism on the financial revenues from tourism in the European countries and the United States. The research is deter-mined by the perception that the financial flows from the international tourism are the quantitative manifestation of the hidden effects of the terrorism. Methods: The research method includes a regression cross-section analysis and Granger Causality test. The survey is panel and includes 37 countries from Europe tourism region and the United States from Americas' tourism region (according UNWTO) for the period 2012?2017. Findings & Value added: In conclusion, the effects of terrorism on the studied regions have been summarized, establishing dependence between terrorism and tourism, which illustrates a specific creative-destructive reflections of terrorism on tourism with regions particularities.
Źródło:
Oeconomia Copernicana; 2019, 10, 2; 219-237
2083-1277
Pojawia się w:
Oeconomia Copernicana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes of Fluoride Content in Sand From Sandboxes Located on Playgrounds in Police (West Pomerania, Poland)
Autorzy:
Telesiński, A.
Człaczyńska-Podolska, M.
Węgrzynowski, Z.
Biczak, R.
Telesińska, N.
Powiązania:
https://bibliotekanauki.pl/articles/123733.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
distance from emitter
fluoride
risk assessment
sandboxes
Opis:
The aim of the study was to determine fluoride content in sand from sandboxes in Police town (West Pomerania, Poland). This area is exposed to excessive emissions of fluoride compounds because of the proximity of chemical plants. The sand samples were collected five times in a period from March to November in 2016. Fluoride content was determined using the potentiometric method with an ion-selective fluoride electrode. The obtained results showed that fluoride content was ranged from 0.09 to 1.48 mg·kg-1 dm. The lowest fluoride content was recorded in the sand collected in place, which was the closest to the emitter, and the largest in the samples from sandbox, which was furthest from the emitter. Analyzing the changes in the content of this element over time, the largest fluoride concentration of sand occurred in July or September depending on location. Pearson correlation coefficient at p < 0.05 (r = 0.925) showed a significant positive correlation between fluoride content and the distance from fluoride emitter.
Źródło:
Journal of Ecological Engineering; 2017, 18, 5; 168-172
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 321

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