Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "impacts" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-7 z 7
    Tytuł:
    Consequences of climate change for spatial organization of Poland
    Autorzy:
    Starkel, Leszek
    Kundzewicz, Zbigniew W.
    Powiązania:
    https://bibliotekanauki.pl/articles/703436.pdf
    Data publikacji:
    2008
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    climate change
    climate change impacts
    spatial organization
    projections
    Opis:
    Climate changes have been observed in Poland the recent decades and more pronounced climate changes are projected for the future. They impact on the natural and built environment of Poland, which has been shaped by both circulation of energy and matter, typical for moderate latitudes, and the properties of the landscape, inherited from the geological past. In the present paper, consequences of climate change (corresponding to model-based projections) for spatial organization of Poland have been reviewed.
    Źródło:
    Nauka; 2008, 1
    1231-8515
    Pojawia się w:
    Nauka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impacts from transportation measures in national appraisal guidelines: coverage and practices
    Autorzy:
    Holmen, Rasmus Bøgh
    Biesinger, Benjamin
    Hindriks, Ivo
    Powiązania:
    https://bibliotekanauki.pl/articles/2173930.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    transportation planning
    decision-making
    economic impacts
    social impact
    environmental impacts
    planowanie transportu
    podejmowanie decyzji
    wpływ ekonomiczny
    wpływ społeczny
    wpływ na środowisko
    Opis:
    Transportation appraisal has a potential important role in prioritization of transportation investment projects and other transportation measures. Appraisal practices vary much over countries and time, but these differences are not fully known. More knowledge on the variation in practices may contribute to smoother knowledge exchange between countries and more informed choices in the further development of each national practice. In this paper, we present both an updated mapping and a meta-analysis of impact coverage in national appraisal guidelines for transportation measures and spatial measures more generally. Our updated mapping of impact coverage covers 18 national and regional guideline sets and 44 sorts of impact. It shows rather similar overall impact coverage in the reviewed guidelines for economic, social and environmental impacts. The most advanced appraisal practices are found in Northern and Western Europe and Oceania. We find that supplementary quantitative analyses are most common for economic impacts, while multi-criteria analyses are most common for environmental impacts. Our meta-analysis covers ours and 15 earlier impact mappings, jointly covering 42 countries and regions. In this examination, we show how impact coverage in appraisal practices has improved over time, particularly for environmental, user and wider economic impacts. The meta-analysis also reveals that Western and Northern European and Oceanian countries and dependencies have had the widest impact coverage from 1998 to 2020, both in CB and overall. To examine what characterize countries with broad and narrow impact coverage, we have applied econometric regression models that are linear (i.e. linear least squares), quasi-linear (i.e. Tobit) and fractional response-based (i.e. fractional probit and fractional logit). In these regression analyses, we control for study-specific characteristics and clustering the standard errors on countries. Our results show that the CB impact coverage tends to increase with economic wealth, equality and population size in developed countries, while we find no such patterns for overall impact coverage.
    Źródło:
    Archives of Transport; 2022, 63, 3; 67--111
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Impacts of global climate change
    Autorzy:
    Kundzewicz, Zbiniew W.
    Powiązania:
    https://bibliotekanauki.pl/articles/703434.pdf
    Data publikacji:
    2008
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    climate change
    climate change impacts
    greenhouse effect
    mitigation
    projections
    Opis:
    The warming of the climate of the Earth has been unequivocal, most notably due to the mancaused increase of atmospheric concentration of greenhouse gases, leading to intensification of the greenhouse effect. Projections for the future explain that we are commited to further, possibly even more intense, warming, whose rate depends on the scenario of socio-economic development and effective climate change mitigation policy. If the global emissions grow in uncontrolled way and carbon sequestration potential decreases, the warming can attain a dangerous dimension. Global warming induces change in all variables of hydroclimatic systems. As demonstrated in the present contribution, the impacts of global climat change – both advantageous and (more often) adverse can be noted in all regions of the globe and in all systems and sectors, some of which are particularly vulnerable. Yet, many of these impacts can be avoided, reduced, or delayed, by effective climate change mitigation.
    Źródło:
    Nauka; 2008, 1
    1231-8515
    Pojawia się w:
    Nauka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Understanding the urbanization impacts of high-speed rail in China
    Autorzy:
    Perl, Anthony
    Deng, Taotao
    Correa, Leandro
    Wang, Dandan
    Yan, Yulin
    Powiązania:
    https://bibliotekanauki.pl/articles/1832929.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    High-Speed Rail
    high-speed rail's impacts
    China
    urbanization
    industry
    population
    Kolej Dużych Prędkości
    wpływ kolei dużych prędkości
    Chiny
    urbanizacja
    przemysł
    Opis:
    Advances in transport technology have been shown to play a vital role in urban development over millennia. From the engineering and pavement innovations of the Roman road network to the aerospace breakthroughs that enabled jet aircraft, cities have been reshaped by the mobility changes resulting from new designs for moving people and goods. This article explores the urbanization impacts of High-Speed Rail’s introduction in China, which has built the world’s largest High-Speed Rail network in record time. Since High-Speed Rail was launched in Japan in 1964, this technology has worked to reshape intercity travel as a revolutionary transportation alternative. High-Speed Rail has developed steadily across Japan, France, Germany, Italy, Switzerland during the 1970s and 1980s. It expanded to Russia, Spain, the United Kingdom, and Sweden in the 1990s. In the 21st century, China began developing High-Speed Rail on an unprecedented scale, and now has a national network that is longer than the totality of the rest of the world’s High-Speed Rail operations combined. China’s High-Speed Rail operation is exerting a transformative influence on urban form and function. This article synthesizes secondary research results to analyse the impacts of HSR on urbanization. These effects include population redistribution, urban spatial expansion and industrial development. We offer a typology that considers the urban effects of High-Speed Rail at three spatial levels: the station area, the urban jurisdiction, and the regional agglomeration. When organized through our typology, research findings demonstrate that High-Speed Rail influences urban population size, urban spatial layout and industrial development by changing the accessibility of cities. We highlight the processes by which High-Speed Rail ultimately affects the urbanization process for people, land use, and industrial development. However, High-Speed Rail’s impacts on urbanization are not always positive. While leveraging the development opportunity enabled by High-Speed Rail, governments around the world should also avoid potential negative impacts by drawing lessons from the experience of High-Speed Rail’s rapid deployment in China.
    Źródło:
    Archives of Transport; 2021, 58, 2; 21-34
    0866-9546
    2300-8830
    Pojawia się w:
    Archives of Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A preliminary assessment of climate change impacts – implications for mining activity in Polish coal regions
    Autorzy:
    Janson, Ewa
    Markowska, Małgorzata
    Łabaj, Paweł
    Wrana, Aleksander
    Zawartka, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/1853841.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    zmiany klimatyczne
    działalność górnicza
    wydobycie węgla
    climate change
    mining activity
    extreme weather events
    climate change impacts on coal mining
    transition of coal regions
    Opis:
    It is widely known and accepted that the global climate is changing with unprecedented speed. Climate models project increasing temperatures and changes in precipitation regimes which will alter the frequency, magnitude, and geographic distribution of climate-related hazards including flood, drought and heat waves. In the mining industry, climate change impacts are an area of research around the world, mostly in relation to the mining industry in Australia and Canada, where mining policies and mitigation actions based on the results of this research were adopted and applied. In Poland, there is still a lack of research on how climate change, and especially extreme weather events, impacts mining activity. This impact may be of particular importance in Poland, where the mining industry is in the process of intensive transition. The paper presents an overview of hazardous events in mining in Poland that were related to extreme weather phenomena. The needs and recommended actions in the scope of mitigating the impact of future climate change on mining in all stages of its functioning were also indicated. The presented analyses and conclusions are the results of the first activities in the TEXMIN project: The impact of extreme weather events on mining activities, identifying the most important factors resulting from climate change impact on mining.
    Źródło:
    Archives of Mining Sciences; 2020, 65, 3; 703-717
    0860-7001
    Pojawia się w:
    Archives of Mining Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Predicting and minimizing the blasting cost in limestone mines using a combination of gene expression programming and particle swarm optimization
    Autorzy:
    Bastami, Reza
    Bazzazi, Abbas Aghajani
    Shoormasti, Hadi Hamidian
    Ahangari, Kaveh
    Powiązania:
    https://bibliotekanauki.pl/articles/1853861.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    kopalnia wapienia
    wybuch detonacyjny
    regresja nieliniowa
    blasting cost
    limestone mine
    gene expression programming
    non-linear multivariate regression
    particle swarm optimization algorithm
    environmental impacts
    Opis:
    Blasting cost prediction and optimization is of great importance and significance to achieve optimal fragmentation through controlling the adverse consequences of the blasting process. By gathering explosive data from six limestone mines in Iran, the present study aimed to develop a model to predict blasting cost, by gene expression programming method. The model presented a higher correlation coefficient (0.933) and a lower root mean square error (1088) comparing to the linear and nonlinear multivariate regression models. Based on the sensitivity analysis, spacing and ANFO value had the most and least impact on blasting cost, respectively. In addition to achieving blasting cost equation, the constraints such as frag-mentation, fly rock, and back break were considered and analyzed by the gene expression programming method for blasting cost optimization. The results showed that the ANFO value was 9634 kg, hole dia-meter 76 mm, hole number 398, hole length 8.8 m, burden 2.8 m, spacing 3.4 m, hardness 3 Mhos, and uniaxial compressive strength 530 kg/cm2 as the blast design parameters, and blasting cost was obtainedas 6072 Rials/ton, by taking into account all the constraints. Compared to the lowest blasting cost among the 146-research data (7157 Rials/ton), this cost led to a 15.2% reduction in the blasting cost and optimal control of the adverse consequences of the blasting process.
    Źródło:
    Archives of Mining Sciences; 2020, 65, 4; 835-850
    0860-7001
    Pojawia się w:
    Archives of Mining Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The impact of the estimation of the parameters values on the accuracy of predicting the impacts of mining exploitation
    Wpływ oszacowania wartości parametrów modelu na dokładność prognozowania wpływów eksploatacji górniczej
    Autorzy:
    Niedojadło, Z.
    Gruszczyński, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/219662.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    protective pillars
    shaft
    vertical strains
    mean errors
    predicting the impacts of exploitation
    Monte Carlo method
    filary ochronne
    szyb
    odkształcenia pionowe
    błąd średni
    prognozowanie wpływów eksploatacji
    metoda Monte Carlo
    Opis:
    The possibility of the assessment of the probability that the acceptable values of deformation indexes will be exceeded and the introduction of the coefficient of safety are more and more seriously considered in case of predicting the impacts of exploitation both on the surface and the shaft tube. This article presents the mentioned above issue focusing on the authors’ project of the exploitation in the protective pillars of the shafts of the Legnica and Głogów Copper Area (LGOM). To assess the accuracy of the predicted deformation indexes Monte Carlo method (often used in statistics) was proposed as well as the strict and approximate analysis using the law of error propagation. The values of vertical strains were analysed, as the most important at the assessment of the state of deformation of the shaft tube. The comparison of the results obtained with different methods confirmed the correctness of the carried out calculations. The applied methods allowed the analysis of the impact of individual parameters of the model on the prediction of the accuracy of forecast. This article makes the continuation of the solutions of the article (Niedojadło & Gruszczyński, 2010) thus some contents essential for the continuity of understanding were repeated here.
    Możliwość oceny prawdopodobieństwa przekroczenia dopuszczalnych wartości wskaźników deformacji oraz wprowadzenie współczynnika bezpieczeństwa coraz częściej są brane pod uwagę w przypadku prognozowania wpływów eksploatacji tak na powierzchnię jak i rurę szybową. W niniejszym artykule przedstawiono powyższe zagadnienie na przykładzie autorskiego projektu eksploatacji w filarach ochronnych szybów LGOM. Do oceny dokładności prognozowanych wskaźników deformacji zaproponowano wykorzystywaną w statystyce metodę Monte Carlo oraz analizę ścisłą i przybliżoną wykorzystującą prawo przenoszenia się błędów średnich. Analizowano wartości odkształceń pionowych, jako najistotniejsze przy ocenie stanu deformacji rury szybowej. Porównanie wyników uzyskanych różnymi metodami potwierdziły poprawność wykonanych obliczeń. Zastosowane metody pozwoliły na analizę wpływu poszczególnych parametrów modelu na dokładność prognozy. Niniejszy artykuł stanowi kontynuację rozważań zawartych w artykule (Niedojadło & Gruszczyński, 2010) stąd pewne treści niezbędne dla zachowania ciągłości rozumowania zostały powtórzone.
    Źródło:
    Archives of Mining Sciences; 2015, 60, 1; 173-193
    0860-7001
    Pojawia się w:
    Archives of Mining Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies