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Wyszukujesz frazę "hydrocarbon" wg kryterium: Temat


Tytuł:
Povyshenie nadezhnosti morskikh truboprovodov pri ehksperimentalnykh vozdejjstvijakh
Increase of reliability of marine pipelines at extreme influences
Autorzy:
Azhermachjov, S.
Powiązania:
https://bibliotekanauki.pl/articles/76974.pdf
Data publikacji:
2014
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
pipeline
reliability
loading
exploitation
hydrocarbon
transport
risk
Źródło:
Motrol. Motoryzacja i Energetyka Rolnictwa; 2014, 16, 5
1730-8658
Pojawia się w:
Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Removal of Hydrocarbons from Contaminated Soils Using Bioremediation by Aerobic Co-composting Methods at Ship Dismantle Locations
Autorzy:
Syawlia, Rizki Mona
Titah, Harmin Sulistiyaning
Powiązania:
https://bibliotekanauki.pl/articles/1838323.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
aerobic
co-composting
hydrocarbon
kitchen waste
slaughterhouse waste
Opis:
This research focused on hydrocarbon removal from contaminated soil, using co-composting methods on a laboratory scale. The soil samples were taken from ship demolition sites in Tanjung Jati, Bangkalan Regency, Madura Island. Therefore, this study aimed to investigate the efficiency of bioremediation process using the co-composting method for hydrocarbon removal. The co-composting was treated under aerobic conditions, and manual stirring for aeration was performed every 2 days. Moreover, the values of hydrocarbon and total bacterial population levels were measured on day 0, 30, and 60. The results of the study at location 1 showed that for 60 days, the cocomposting of contaminated soil in the control reactor was 33.36%, kitchen waste (34.99%), local cattle rumen waste (59.41%), and soil mixed kitchen and cattle rumen waste (61.01%). Meanwhile, at location 2, they were 28.50%, 64.18%, 42.67%, and 67.03% respectively. The largest total bacterial population was in the nutrient agar media with stratification of up to 10-8.
Źródło:
Journal of Ecological Engineering; 2021, 22, 6; 181-190
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Removal of Hydrocarbons from Contaminated Soils Using Bioremediation by Aerobic Co-composting Methods at Ship Dismantle Locations
Autorzy:
Syawlia, Rizki Mona
Titah, Harmin Sulistiyaning
Powiązania:
https://bibliotekanauki.pl/articles/1838348.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
aerobic
co-composting
hydrocarbon
kitchen waste
slaughterhouse waste
Opis:
This research focused on hydrocarbon removal from contaminated soil, using co-composting methods on a laboratory scale. The soil samples were taken from ship demolition sites in Tanjung Jati, Bangkalan Regency, Madura Island. Therefore, this study aimed to investigate the efficiency of bioremediation process using the co-composting method for hydrocarbon removal. The co-composting was treated under aerobic conditions, and manual stirring for aeration was performed every 2 days. Moreover, the values of hydrocarbon and total bacterial population levels were measured on day 0, 30, and 60. The results of the study at location 1 showed that for 60 days, the cocomposting of contaminated soil in the control reactor was 33.36%, kitchen waste (34.99%), local cattle rumen waste (59.41%), and soil mixed kitchen and cattle rumen waste (61.01%). Meanwhile, at location 2, they were 28.50%, 64.18%, 42.67%, and 67.03% respectively. The largest total bacterial population was in the nutrient agar media with stratification of up to 10-8.
Źródło:
Journal of Ecological Engineering; 2021, 22, 6; 181-190
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Researches of noxious components of exhaust gases conversion occurs in catalytic converter during a start-up of compression ignition engine in lowered temperature
Autorzy:
Koliński, K.
Powiązania:
https://bibliotekanauki.pl/articles/244570.pdf
Data publikacji:
2011
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
engine start-up
catalytic reactor
testing station
carbon
hydrocarbon
Opis:
This article presents the results of the tests of catalytic reduction of carbon oxide and hydrocarbon emission during the self-ignition engine start-up. The tests were performed at the station in the climate chamber at lowered ambient temperatures: –7 ,-15 and –20 centigrade. A heated three-function platinum-palladium catalytic reactor with a metal monolith was used in the tests. The test methodology included a measurement of toxic fume concentraction upstream and downstream the catalytic reactor at simultaneous measurement of the start-up parameters and measurement of temperatures in selected engine and catalytic reactor locations. A period of the cold engine start-up is characterized by a relatively high carbon oxide and hydrocarbon emission. The level of that emissions increases as the ambient temperature gets lower. As a result of the tests the influence of heating up the reactor on its operation during the selfignition engine start-up was identified.Carbon oxide and hydrocarbon emission during the start-up period can be reduced by initial heating up the catalytic reactor before the start-up by means of an electric heater. When heating up the reactor surface up to 400 centigrade at ambient temperature of –7 centigrade, CO concentration can be reduced by 80...90 per cent and the hydrocarbon concentration can be reduced by app. 70 per cent on the average.
Źródło:
Journal of KONES; 2011, 18, 1; 253-262
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distribution and fate of polycyclic aromatic hydrocarbons (PAHs) in recent sediments from the Gulf of Gdańsk (SE Baltic)
Autorzy:
Lubecki, L.
Kowalewska, G.
Powiązania:
https://bibliotekanauki.pl/articles/48378.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Baltic Sea
Gdansk Gulf
Vistula River
anthropogenic stress
distribution
environment parameter
hydrocarbon
marine area
organic carbon
pollution
polycyclic aromatic hydrocarbon
sediment
water
Źródło:
Oceanologia; 2010, 52, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Laminar burning velocity predictions of single-fuel mixtures of C1-C7 normal hydrocarbon and air
Autorzy:
Jach, A.
Żbikowski, M.
Teodorczyk, A.
Powiązania:
https://bibliotekanauki.pl/articles/243965.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
laminar burning velocity
hydrocarbon
machine learning
LOGEsoft
alkane
MATLAB
Opis:
The numerical modelling of combustion phenomena is an important task due to safety issues and development and optimization of engines. Laminar burning velocity (LBV) is one of the most important physical properties of a flammable mixture. Knowing its exact value if crucial for assessment of flame stabilization, turbulent flame structure. It influences strongly safety, probability of knocking combustion and it is one of parameters used for assessment and development of detailed chemical kinetic mechanisms. Hence, the goal of this work is to develop models by means of Machine Learning algorithms for predicting laminar burning velocities of single-fuel C1-C7 normal hydrocarbon and air mixtures. Development of the models is based on a large experimental data set collected from literature. In total more than 1000, LBVs were accumulated for hydrocarbons from methane up to n-heptane. The models are developed in MATLAB 2018a with use of Machine Learning toolbox. Algorithms taken into account are multivariate regression, support vector machine, and artificial neural network. Performance of the models is compared with most widely used detailed chemical kinetics mechanisms’ predictions obtained with use of LOFEsoft. These kind of models might be efficiently used in CFD combustion models based on flamelet approach. The main advantage in comparison to chemical kinetics calculation is much shorter computational time needed for computations of a single value and comparable performance in terms of R2 (coefficient of determination), RMSE (root-mean-square error) and MAE (mean absolute error).
Źródło:
Journal of KONES; 2018, 25, 3; 227-235
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cover of Cylinder Lattice Plastic Convert into Fuel
Autorzy:
Sarker, M.
Rashid, M. M.
Powiązania:
https://bibliotekanauki.pl/articles/412122.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
plastic lattice
conversion
fuel
hydrocarbon
waste plastics material
GC-MS
Opis:
Waste plastic of cylinder lattice to liquid fuel production process was performing two step processes. 1st step process was perform muffle furnace with ceramic crucible and 2nd step process was perform glass reactor with condensation unit. Thermal degradation process was performing with furnace and temperature was 410 ?C and reactor temperature was 420 ?C. Muffle furnace was use for solid hard shape of plastic melting purpose and glass reactor was use for liquid slurry to produce vapor purpose. Liquid slurry to produce vapor was condensed and collected liquid fuel and fuel density is 0.75 g/ml. Liquid fuel production conversation rate was 71.05 %. Fuel was analysis by GC/MS and carbon chains obtain C3 to C23 from GC/MS chromatogram. Fuel color is light yellow and fuel is ignited.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2013, 6; 17-30
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrocarbons on sea water: steady-state spreading signatures determined by an optical method
Autorzy:
Boniewicz-Szmyt, K.
Pogorzelski, S.
Mazurek, A.
Powiązania:
https://bibliotekanauki.pl/articles/49155.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
oil pollution
optical method
sea water
hydrocarbon
contamination
petroleum derivative
Opis:
The spreading properties of several hydrocarbons (vegetable, engine, gear and crude oils) on distilled and artificial sea water were determined under laboratory conditions using a novel optical method. With the aid of Langmuir’s equation, the geometrical signatures of a discrete lens of each hydrocarbon droplet floating on a water tank served to calculate the entering E (31.30–94.18 mN m−1) and spreading S (−3.50 to −57.49 mN m−1) coefficients, and equilibrium thicknesses t∞ (0.20–1.25 cm). They appeared to be in agreement with the values derived from direct interfacial tension measurements (Wilhelmy plate and stalagmometer methods). Empirical relations of the normalized lens radius rL/rdrop and S on the water surface tension γAW were postulated as being of significant value in oil spill assessment studies at sea. The parameters obtained together with the surface properties of a natural surfactant-containing water body represent the principal input data required for modelling the spreading of a surface-tension-gradient-driven oil spill at sea.
Źródło:
Oceanologia; 2007, 49, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Jet fuels diversity
Autorzy:
Sarnecki, J.
Powiązania:
https://bibliotekanauki.pl/articles/245076.pdf
Data publikacji:
2014
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
jet fuel
composition
hydrocarbon
jet engine
fossil fuels
surrogate fuels
Opis:
Term “jet fuel” is well known and recognized worldwide - it applies to aviation product used to power all turbine engines in aircrafts and helicopters. Its’ properties are clearly and strictly defined in international specifications. However, in the discussion concerning jet fuels, and in most research material, many people seem to forget that this fuel is a mixture of different hydrocarbons, is produced from different feedstock (crude oil from different sources available worldwide) and as a final product is obtained with different production processes. Thus, however jet fuel must meet the requirements defined in international standards, these fuels differ each other and as a result, differences can be observed in logistic chain and in combustion process. This paper points out some differences between jet fuels and its aim is to convict users, researchers and all people in aviation industry dealing with jet engines operation, that - when talking about jet fuel - many factors and details about final product must be considered, and this type of product should not be seen as single-type fuel, as most people see it now. The article has been prepared within the research project funded by the National Science Centre in Poland and granted with decision no. DEC-2011/01/D/ST8/06567.
Źródło:
Journal of KONES; 2014, 21, 4; 433-438
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geospatial Assessment of Regression Analysis Between the Hydrocarbon Content in Surface Waters and Snow Cover on the Example of the Territories of the Far North of Russia
Autorzy:
Martynova, Natalia
Budarova, Valentina
Kravchenko, Victoria
Powiązania:
https://bibliotekanauki.pl/articles/2068459.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
regression analysis
hydrocarbon
surface water
snow cover
GIS mapping service
ecology
Opis:
The article presents the generalized results obtained from the analysis of oil pollution of surface waters in the fields of the Far North. The research considered the administrative territorial division of the Russian Federation, the territory of the Khanty-Mansi Autonomous Okrug – Yugra (KhMAO). The results of the study performed on the basis of field data on sampling for the year were presented. The influence of the hydrocarbon content in surface waters and snow cover was assessed. The aim of the work was to consider the snow cover as a natural source of pollutants, affecting the accumulation in surface waters and snow cover. The results obtained can be used for subsequent observations of snow cover and surface waters. The data obtained can serve as a basis for planning further research and developing the solutions for environmental protection in the Far North. The analysis of the dependencies between the indicators of hydrocarbon pollution in surface waters and snow cover was carried out using the methods of correlation and parametric multivariate regression analysis. The methods of geoinformation analysis and GIS technologies were also used in the work. It was revealed that the problem of the state of snow cover and its role as an indicator of atmospheric and soil pollution require further research. On the one hand, the snow cover detains metals, and polluted soil areas are formed locally, on the other hand, after the snow melts, the pollutants remaining on the surface with surface runoff enter rivers and are carried by the wind for quite long distances.
Źródło:
Journal of Ecological Engineering; 2022, 23, 3; 74--83
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cavitation reactor installation for processing hydrocarbon
Kavitacionnaja ustanovka pererabotki uglevodorodov
Autorzy:
Tselischev, A.
Loirya, M.
Ijagbuji, A.
Powiązania:
https://bibliotekanauki.pl/articles/792824.pdf
Data publikacji:
2016
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
methanol
cavitation
hydroxyl radical
propane-butane gas
hydrogen peroxide solution
hydrocarbon
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2016, 16, 2
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biosurfactant Produced by Indigenous Bacteria During Composting Process of Crude Oil Polluted Soil: Properties and Role
Autorzy:
Sari, Gina Lova
Trihadiningrum, Yulinah
Ni'matuzahroh
Putra, Suhendra Amka
Kasasiah, Ahsanal
Alim, Muhammad Syahirul
Powiązania:
https://bibliotekanauki.pl/articles/2086413.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
bioremediation
biosurfactant
composting
hydrocarbon
in-situ bio-based surfactant
polluted soil
Opis:
Bacterial co-metabolism in composting process has been widely used to remove hydrocarbons, aided by in-situ production of bio-based surfactants, in terms of compost humic acid-like substances and biosurfactants. The properties of compost humic acid-like substances have been shown in previous studies as potential surface tension reducers and emulsifiers for hydrocarbons. The current study aimed to analyze the properties of biosurfactant of surface tension decrease, emulsification activity, and hydrocarbon solubilization ability. Four indigenous bacteria consortia were isolated from composted materials of yard waste, rumen residue, crude oil-polluted soil, and the mixture of polluted soil with organic waste (1:1, w/w) at day 0th, 20th, 40th, and 60th. Organic waste consists of yard waste and rumen residue in the ratio of 1:1. The isolated indigenous bacteria consortia were incubated for 7 days in different media, i.e., organic waste extract, 6.00% of crude oil, and a mixture of organic waste extract with 6.00% crude oil. The results indicated that the surface tension decrease and emulsification activity of biosurfactants were 8.35–52.90 mN m-1 and 0.00–12.00%, respectively, which showed the potential as surface tension reducers with low emulsification activity. The higher hydrocarbon solubility was shown by the biosurfactant from the rumen residue (13 620 µg g-1) and the mixture (10 998 µg g-1) at day 40th, which was comparable to 1.50% of Tween 80. The biosurfactants in the current research were produced with the same materials, process, and time as compost humic acid-like substances which acts as in-situ bio-based surfactants. The respective ability to solubilize hydrocarbon might be combined and estimated to be higher than Tween 80 of 24 329 µg g-1 and 21 619 µg g-1 for rumen residue and the mixture, respectively. Therefore, it was concluded that the best composition for in-situ bio-based surfactant production to assist the degradation of hydrocarbon through composting process is polluted soil with organic waste (1:1, w/w). The solubility of hydrocarbons can be increased without synthetic surfactants addition, but through providing nutrients to maintain in-situ bio-based surfactant production with intermittent addition of organic waste every 40 days. This method is expected to be an appropriate approach in composting development as a cost-effective sustainable bioremediation technique for polluted soil.
Źródło:
Journal of Ecological Engineering; 2022, 23, 4; 297--314
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ecological Implications and Source Apportionment of Heavy Metal and Hydrocarbon Contaminants in the Soil of a Poorly Crude Oil Remediated Site in Nigeria: A Case of Ikot Ada Udo Community
Autorzy:
Joseph, Akaninyene
Udofia, Udeme
Edet, Uwem
Iwok, Eno
Ivara, Vivian
Powiązania:
https://bibliotekanauki.pl/articles/2027897.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
ecological risk
source apportionment
heavy metals
hydrocarbon
oil spill
Ikot Ada Udo
Opis:
The ecological risk and source apportionment of heavy metals and hydrocarbons in soil from the study site was carried out. Composite soil samples (n = 48) were collected from 3 sampling points (SP 1, SP 2, SP 3) within the site at 50, 200, and 500 meters, respectively, from the oil well and from a control site (Ibagwa, Abak) at 10,000 meters from the study site, using a hand-held auger. The samples were analyzed for heavy metals using inductively coupled plasma atomic emission spectrometry (ICP–AES, Yobin Yvon JY-24) and total petroleum hydrocarbon (TPH) using Agilent 6890N Gas Chromatography - Flame Ionization Detector (GC– FID model, Japan). Mean levels of heavy metals and TPH were higher in the study site compared to the control. The mean levels of heavy metals were 0.748 mg/kg (Pb), 0.754 mg/kg (Cd), 1.577 mg/kg (Ni), 0.274 mg/kg (Cr), 4.749 mg/kg (Fe), 0.020 mg/kg (V), 0.103 mg/kg (Co), 0.181 mg/kg (As), 5.544 mg/kg (Mn), and 5.187 mg/kg (TPH). The heavy metals in the soil had an increasing sequence of V
Źródło:
Journal of Ecological Engineering; 2021, 22, 10; 275-286
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studium petrologiczno-mineralogiczno-geochemiczne skał w profilu dolomitu głównego w otworze Mo-1
A petrological, mineralogical and geochemical study of the Main Dolomite in the Mo-1 borehole
Autorzy:
Jarmołowicz-Szulc, Katarzyna
Kozłowska, Aleksandra
Kuberska, Marta
Matyasik, Irena
Powiązania:
https://bibliotekanauki.pl/articles/2076008.pdf
Data publikacji:
2020
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
inkluzje fluidalne
węglowodór
zbiornik oleju
zbiornik gazu
fluid inclusions
hydrocarbon
oil basin
gas basin
Opis:
Rocks from the Mo-1 well from the Barnówko-Mostno-Buszewo (BMB) oil and gas field have been studied aiming at constructive results for application in exploration for oil and gas. The study focuses on carbonate deposits from the Main Dolomite horizon, commonly diagenetically altered, where the pore space has been filled by dolomite and anhydrite. Standard petrological analysis was conducted, wide fluid inclusion analyses performed and geochemical character of bitumen determined. Based on microscopic fluorescence studies, three types of fluid inclusions have been distinguished in the vertical column of the well: one-phase non-fluorescent (methane), two-phase non-fluorescent (brine), and two-phase fluorescent inclusions (oil). These three types, further studied microthermometrically, display characteristics of fluid fillings present in the basin and closed as the inclusions in minerals.
Źródło:
Przegląd Geologiczny; 2020, 68, 10; 780--792
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy Sector in Georgia and the Export Policy of Azerbaijan’s Fuels and Hydrocarbon Resources
Energetyka w Gruzji a polityka eksportowa paliw i surowców węglowodorowych Azerbejdżanu
Autorzy:
Kwiatkiewicz, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/2163372.pdf
Data publikacji:
2022-12-31
Wydawca:
Wydawnictwo Adam Marszałek
Tematy:
Azerbaijan
Georgia
energy sector
crude oil
natural gas
fuel
hydrocarbon
resource
Azerbejdżan
Gruzja
sektor
energetyczny
ropa naftowa
gaz ziemny
rurociągi
Opis:
Georgia, deprived of its own hydrocarbon resources, relies exclusively on the import. It has abstained from purchasing those from the Russian Federation for political reasons, which, combined with the lack of LNG terminal infrastructure, has led to the factual monopolization of crude oil and natural gas supplies from Azerbaijan. For geopolitical reasons, Georgia remains the only export route for Azerbaijan for these resources. Easy access to those resources due to its position as a transit state has an impact on the tempo of energy transformation in Georgia. On the one hand, the significantly lower than expected dynamics of the development of renewable energy sources, and on the other hand, the growing role of Azerbaijani national companies in the market of liquid fuels and natural gas in Georgia, are visible consequences of the emergent status quo.
Pozbawiona własnych złóż surowców węglowodorowych Gruzja zdana jest na import. Zaniechanie z przyczyn politycznych ich zakupów w Federacji Rosyjskiej oraz braki infrastrukturalne (w tym brak terminalu LNG) doprowadziły do faktycznej monopolizacji dostaw ropy naftowej i gazu ziemnego z Azerbejdżanu. Z powodów geopolitycznych Gruzja pozostaje dla Azerbejdżanu jedyną drogą eksportową tych surowców. Łatwy dostęp do nich – z racji zajmowania pozycji państwa tranzytowego – nie pozostaje bez wpływu na tempo transformacji energetycznej w Gruzji. Znacząco niższa niż należałoby się tego spodziewać dynamika rozwoju OZE z jednej strony, a z drugiej rosnąca na znaczeniu rola azerbejdżańskich spółek narodowych na rynku paliw ciekłych i gazu ziemnego w Gruzji są dostrzegalną konsekwencją powstałego status quo.
Źródło:
Athenaeum. Polskie Studia Politologiczne; 2022, 76; 30-49
1505-2192
Pojawia się w:
Athenaeum. Polskie Studia Politologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł

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