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Wyświetlanie 1-15 z 133
Tytuł:
Cumulative Industrial Noise Impact on the Environment
Autorzy:
Wszołek, T.
Powiązania:
https://bibliotekanauki.pl/articles/178090.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
industrial noise
cumulative impact
noise indicators
cumulative noise levels
Opis:
The paper presents basic legal conditions, applicable to the calculation of cumulative noise levels in the environment with indication mainly on lack of detailed regulations both in formal and methodological approach for evaluating those levels. The paper is focused on methodological approach with the emphasis on analysis of existing case studies in the industry. The main subject of the analysis is the cumulation of industrial noise sources: newly designed and existing ones, together with a proposal of accumulate other types of the noise. Evaluation of cumulative noise levels for new (designed) objects is realised by computational methods, and for existing objects, by measurements or by combination of measurement and computational methods. It is assumed that the cumulative level is an energetic sum of the rating levels for all installations and it will not exceed the limit value in a given place. For the cumulation of different noise sources, the weighting for criterion values of these sources will be applied in aggregation.
Źródło:
Archives of Acoustics; 2017, 42, 2; 169-174
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
gC-Studio – the environment for automated filter design
Autorzy:
Katarzynski, P.
Melosik, M.
Handkiewicz, A.
Powiązania:
https://bibliotekanauki.pl/articles/201387.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
gyrator-capacitor prototype circuits
filter approximation
EDA
CAE
Opis:
The paper presents the idea of software suite integrating the tools supporting the analog filter design. It uses the prototype circuits that are composed of gyrators and capacitors. The essential, behavioral parameters are characterised for the filtering structures. The basic assumptions formulated before the implementation are also mentioned. The structure of the software suite is discussed, its functional properties and the implementation issues are mentioned. The resulting software brings the automation of designing SISO filters as well as the filter pairs. In the proposed solution the VHDL-AMS language is assumed as the formal method of hardware description.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2013, 61, 2; 541-544
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Human impact upon the environment in the vicinity of Arctowski Station, King George Island, Antarctica
Autorzy:
Chwedorzewska, Katarzyna J.
Korczak, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/2051623.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctica
King George Island
human impact
Źródło:
Polish Polar Research; 2010, 1; 45-60
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Economical Lighting of Highways in the Environment of SMOL Language
Autorzy:
Kowalczuk, Z.
Wszołek, J.
Powiązania:
https://bibliotekanauki.pl/articles/220666.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
lighting systems
economical factors
engineering systems
monitoring
domain languages
modelling and simulation environment
Opis:
The paper puts forward and implements a method of designing and creating a modelling simulation environment for extensive and complete analysis of economical lighting on highways. From a general design viewpoint, the proposed solution explores the concept of a network description language (SMOL), which has been designed to describe the necessary network functions, mechanisms, and devices for the purpose of their computer simulation and verification. The presented results of the performed research confirm the usability of intelligent lighting on highways, both in the sense of the design concept and in the aspect of saving energy.
Źródło:
Metrology and Measurement Systems; 2017, 24, 3; 473-488
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New Approach to the Uncertainty Assessment of Acoustic Effects in the Environment
Autorzy:
Batko, W.
Pawlik, P.
Powiązania:
https://bibliotekanauki.pl/articles/177204.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
interval arithmetic
uncertainty
railway noise
Opis:
The acoustic climate assessment needed for the selection of solutions (technical, legal and organisa- tional), which will help to minimise the acoustic hazards in the analysed areas, is realised on the basis of acoustic maps. The reference computational algorithms, assigned to them, require very thorough prepa- ration of input data for the considered noise source model representing – in the best possible way – the acoustic climate. These input data are burdened with certain uncertainties in this class of computational tasks. The uncertainties are related to the problem of selecting proper argument values (from the inter- val of their possible variability) for the modelled processes. This situation has a direct influence on the uncertainty of acoustic maps. The idea of applying the interval arithmetic for the assessment of acoustic models uncertainty is formulated in this paper. The computational formalism assigned to the interval arithmetic was discussed. The rules of interval estimations for the model solutions determining the sound level distribution around the analysed noise source – caused by possible errors in the input data – were presented. The application of this formalism was illustrated in uncertainty assessments of modelling acoustic influences of the railway noise linear source on the environment.
Źródło:
Archives of Acoustics; 2012, 37, 1; 57-61
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Merely a threat? Worldwide transformation as a chance of development – psychological reflection
Autorzy:
Ledzińska, Maria
Powiązania:
https://bibliotekanauki.pl/articles/430143.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
globalisation
effects of worldwide transformations
heterogeneity of the environment
development
Opis:
The author considers the psychological aspects of globalisation, drawing attention to the possible effects of worldwide transformations. She presents definition problems and characterises the main currents and mechanisms of globalisation at the turn of the 20th and 21st century. Several standpoints of contemporaneity researchers concerning the evaluation of the effects of undergoing transformations have also been recalled. Noticing the diverse effects for development and the functioning of individuals and groups, she concentrates on a selected aspect of the living environment, namely, on diversity. She formulates the thesis that the heterogeneity of the environment, which constitutes a characteristic of globalisation, stimulates development in its various phases and fields, optimising particularly the functioning of reflective persons who enter into dialogue with contemporaneity.
Źródło:
Polish Psychological Bulletin; 2011, 42, 4; 235-246
0079-2993
Pojawia się w:
Polish Psychological Bulletin
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of former industrial waste landfill in central Poland on PCBs content in the environment
Autorzy:
Gabryszewska, Marta
Gworek, Barbara
Powiązania:
https://bibliotekanauki.pl/articles/1845410.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
polychlorinated biphenyls
industrial waste landfill
groundwater
Opis:
The aim of this study was to investigate the impact of industrial waste landfill on the release of polychlorinated biphenyls (PCBs) on the environment with reference to water flow directions. 10 study plots were designated around the landfill site. Soil samples were taken from different soil layers. Plants: Solidago canadensis (leaves, stem), Quercus L. (leaves), and Poaceae were tested on PCBs contents. Groundwater samples were taken from piezometers. PCBs in the samples were determined by gas chromatography with an electron capture detector (GC/ECD). The highest accumulation of PCBs congeners was observed in the topsoil layers and decreased with the sampling depth. The dominant PCBs congeners in soil were PCB 28 and PCB 138, in plants PCB 28 and PCB 52. The most significant PCBs accumulation in the topsoil layer occurred in the research area on which the largest amount of waste was deposited and was equal to 14.2 ng/g. The largest sum of determined PCBs congeners was found in Solidago canadensis leaves – 3.26 ng/g and Quercus L. leaves – 3.32 ng/g. PCB 28 and PCB 52 were capable of translocation from soil to plants. It was found that the water flow direction did not affect PCB content in soils.
Źródło:
Archives of Environmental Protection; 2021, 47, 2; 61-69
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of the Acoustical Environment of the Elderly’s Living Place
Autorzy:
Zeng, Y.
Peng, J.
Zhao, L.
Powiązania:
https://bibliotekanauki.pl/articles/177262.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
elderly
hearing impairment
living space
acoustical environment
noise
Opis:
A questionnaire survey was conducted in the residential quarters of Guangzhou, for which 582 elderly people over 60 years old were randomly recruited. The hearing impairment of the participants was evaluated using the Hearing Handicap Inventory for the Elderly (HHIE). The participants’ subjective responses to the acoustical environment of their living place and the impact of the living acoustical environment (LAE) on the participants were investigated. The results show that the participants with a low HHIE score and no hearing impairment evaluated their LAE more favourably, and they considered that the effect of the LAE on their daily life was weak. However, those with a high HHIE score and severe hearing impairment evaluated their LAE poorly, and considered its effect on their daily lives to be significant. For the elderly, the worse the hearing is, the higher their demand for a better LAE. Traffic noise, construction noise, noise from residential quarters, and noise from next door or upstairs neighbours were the main noise sources in the elderly’s living places, and traffic noise, construction noise, and noise from next door and upstairs were the most influential sources. 28.9% of the respondents had trouble hearing what their family said in their living place. The elderly without hearing impairment considered that continuous noise was the main reason that they could not hear what their family said in their living place, while those with hearing impairment believed that their own hearing problem was a contributing factor.
Źródło:
Archives of Acoustics; 2018, 43, 3; 531-536
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Technical Possibilities of Reducing the Sound Pressure Level Emitted into the Environment by a Power Transformer
Autorzy:
Borucki, S.
Boczar, T.
Cichoń, A.
Powiązania:
https://bibliotekanauki.pl/articles/177473.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
power transformer
corrected sound pressure level
noise
modernization
Opis:
The subject presented in this paper refers to measurements and assessment of the corrected sound pressure level values (noise) occurring around a medium-power transformer. The paper presents the values of noise accompanying the operation of the power object before and after its modernization, which consisted in repeated core pressing and replacement of the cooling system. The main aim of the research work was the assessment of the influence of the repair work on the noise level emitted into the environment.
Źródło:
Archives of Acoustics; 2011, 36, 1; 49-56
0137-5075
Pojawia się w:
Archives of Acoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wrocław i jego relacje z otoczeniem – wybrane obszary
Wrocław and Its Relationship with the Environment - Selected Areas
Autorzy:
Korenik, Stanisław
Powiązania:
https://bibliotekanauki.pl/articles/2027978.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Źródło:
Studia komitetu przestrzennego zagospodarowania kraju PAN; 2016, 170; 336-345
0079-3507
Pojawia się w:
Studia komitetu przestrzennego zagospodarowania kraju PAN
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Natural and anthropogenic transformations of the natural environment in the “Kępa Redłowska” reserve
Autorzy:
Marek, Aneta
Olszak, Ireneusz J.
Powiązania:
https://bibliotekanauki.pl/articles/2024719.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Kępa Redłowska
Gdynia
Polska
cliff
fortification
Opis:
The “Kępa Redłowska” reserve is located in the southern part of Kępa Redłowska. The location of the reserve is quite unique. Its eastern border runs along the coastline of the Baltic Sea, while on the other sides it is surrounded by highly urbanized districts of Gdynia. Its coastal location means that it is exposed to natural factors that operate in the coastal zone, whereas its urban surroundings are a threat to the natural environment through more or less controlled human activity. The landscape of the reserve owes its attractiveness mainly to the cliff coast it encompasses. Diversified geological structure of this area, both in terms of lithology and age, combined with progressive erosion, causes a continuous change in its appearance. It is this part of the reserve that is most exposed to the destructive activity of natural factors, mainly coast erosion as well as aeolian processes. The intensity of these processes is closely related to climate changes over the centuries, e.g. a significant reduction in the number of winters, during which there is ice cover in the shore zone means that cliffs are not protected against erosion by winter storms. A spectacular effect of winter storms in this area was a large landslide in the southern part of the cliff on February 15, 2018. The retreat of cliffs is a common phenomenon, however observations in recent decades clearly indicate its acceleration. The remaining part of the reserve area, not directly connected with the shore zone, is subjected to continuously growing anthropopressure. As mentioned above, the “Kępa Redłowska” reserve is located in Gdynia. The expansion of the Redłowo district has resulted in the housing development being located directly adjacent to the eastern border of the reserve. An additional element of anthropopressure is the creation of interpretive trails and tourist routes within the reserve. On the one hand, this is an attempt to “channel” tourist traffic in this area, on the other hand, it causes an increase in tourist traffic with all the negative phenomena associated with it, mainly for vegetation. Human interference in the reserve began already at the end of the 1930s. At that time, military facilities, such as bunkers and artillery positions, were built there. This process continued uninterrupted until the 1960s. Post-military objects are on the one hand an attraction for tourists, on the other hand they attract the attention of various types of seekers of military remnants who, during their explorations, cause additional damage to the surface of the area and vegetation.
Źródło:
Studia Quaternaria; 2020, 37; 5-14
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
GEOPOL®. The Innovated Environment Friendly Inorganic Binder System
Autorzy:
Vykoukal, M.
Burian, A.
Prerovska, M.
Powiązania:
https://bibliotekanauki.pl/articles/381696.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
geopolymer binder
GEOPOL®
inorganic binder
environment
mould and core
spoiwo geopolimerowe
spoiwo nieorganiczne
środowisko
Opis:
This paper deals with the complete technology of inorganic geopolymer binder system GEOPOL® which is a result of long term research and development. The objective of this paper is to provide a theoretical and practical overview of the GEOPOL® binder system and introduce possible ways of moulds and cores production in foundries. GEOPOL® is a unique inorganic binder system, which is needed and welcomed in terms of the environment, the work environment, and the sustainable resources. The GEOPOL® technology is currently used in the foundries for three basic production processes/technologies: (1) for self-hardening moulding mixtures, (2) sand mixtures hardened by gaseous carbon dioxide and (3) the hot box technology with hot air hardening. The GEOPOL® technology not only solves the binder system and the ways of hardening, but also deals with the entire foundry production process. Low emissions produced during mixing of sand, moulding, handling, and pouring bring a relatively significant improvement of work conditions in foundries (no VOCs). A high percentage of the reclaim sand can be used again for the preparation of the moulding mixture.
Źródło:
Archives of Foundry Engineering; 2019, 1; 109-116
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The degree of tundra degradation in the surroundings of the Hornsund Polar Station (Spitsbergen) — reaction of the environment to human impact
Autorzy:
Krzyszowska, Anna
Powiązania:
https://bibliotekanauki.pl/articles/2058177.pdf
Data publikacji:
1981
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Spitsbergen
tundra
human impact
Źródło:
Polish Polar Research; 1981, 2, 1-2; 73-86
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Revealing the Invisible: The Heritagization Process of the Underwater Environment
Autorzy:
De Vivo, Caterina
Powiązania:
https://bibliotekanauki.pl/articles/2015864.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
heritagization
underwater heritage
narrative
Opis:
Cultural heritage is not a given concept, it is a social construct. Thanks to the development of the SCUBA diving techniques, the XXth century saw the gradual heritagization of the underwater environment, with the emergence of the concept of "underwater cultural heritage" whose most relevant outcome is the 2001 UNESCO Convention on the Protection of the Underwater Heritage. However, the analysis of six case studies from the Mediterranean context shows how the process of institutionalization of underwater archaeology is not completed yet. Moreover, the general public still does not perceive ancient objects lying beneath the water as their heritage. The case of the invisible underwater heritage was the perfect example which showed how, in order to build a powerful cultural object (Griswold, 1987: 4), it is necessary to make it really accessible to people and, especially, linked to a powerful narrative. The analysis was developed using the Cultural Diamond (Griswold, 2004: 16) as a descriptive model and Schudson's (Schudson, 1989) five dimensions as an analytical tool.
Źródło:
Roczniki Socjologii Morskiej; 2015, 24; 4-20
0860-6552
Pojawia się w:
Roczniki Socjologii Morskiej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ecological role of the current and abandoned penguin rookeries in the land environment of the maritime Antarctic
Autorzy:
Myrcha, Andrzej
Tatur, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/2052848.pdf
Data publikacji:
1991
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctica
ornithogenic soils
penguins
ecological role
Źródło:
Polish Polar Research; 1991, 12, 1; 3-24
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 133

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