Informacja

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

Wyszukujesz frazę "PER" wg kryterium: Temat


Wyświetlanie 1-5 z 5
Tytuł:
Threshold effect of economic growth on domestic waste production : evidence from China
Autorzy:
Yang, Li
Wang, Hong-Yan
Yi, Lan
Shi, Xiang-Zhen
Deng, Wei
Powiązania:
https://bibliotekanauki.pl/articles/2203127.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
domestic waste
per capita GDP
source reduction
panel threshold regression model
Opis:
Since the implementation of the compulsory sorting of domestic waste policy in China, the participation rate of residents is low, which leads to the unsatisfactory result of terminal reduction of domestic waste. Therefore, the problem of domestic waste reduction still needs to rely on source reduction. Based on the panel data of 29 provincial capitals in China from 2009 to 2018, this study conducts a comprehensive threshold effect test on per capita GDP and other influencing factors of domestic waste production, conducts panel threshold regression for the factors with threshold value, and explores the nonlinear relationship between per capita GDP and domestic waste production under the influence of different threshold variables. The results show that when the urban population density is less than 272 people/km2, the increase of 1% of per capita GDP will lead to a decrease of 0.251% in the domestic waste production, otherwise, it will lead to an increase of 0.249%; when the per capita consumption expenditure is less than the threshold value of 10,260 yuan/year, the influence coefficient of per capita GDP is 0.155, which increases to 0.207 above the threshold. When the share of tertiary industry is taken as the threshold variable, the two threshold values are 61% and 71% respectively. Through the analysis of control variables, it has been found that population size and amount of courier per capita have significant positive effects on domestic waste production, while gas permeability and the number of non-governmental organizations have significant negative effects.
Źródło:
Archives of Environmental Protection; 2022, 48, 4; 13--24
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Relationship Between Middle Income Trap and Structural Transformation: The Case of Selected Countries
Autorzy:
Soyyiğit, Semanur
Powiązania:
https://bibliotekanauki.pl/articles/2076006.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
middle-income trap
structural transformation
economic complexity index
per capita GDP
random coefficient panel regression model
Opis:
Many studies on middle income trap draw attention to the product trap that can be expressed as the fact that countries are stuck in the production and export of unsophisticated products. In this sense, it is stated that the role of a country in the production and export of sophisticated goods is one of the determinant factors to increase the level of income. In the literature, the concept of economic complexity, which is expressed as gaining competitiveness of complex products in terms of production and export, is noteworthy in recent years. In this framework, relationship between the per capita GDP and the economic complexity is examined with regression analysis in this study for selected countries with high-level of income. In the analysis, in which random coefficient panel regression model is applied, a significant relationship was found between the two variables for Austria, Finland, Hong Kong, Japan, Norway, Singapore and Sweden.
Źródło:
Central European Journal of Economic Modelling and Econometrics; 2019, 4; 217-235
2080-0886
2080-119X
Pojawia się w:
Central European Journal of Economic Modelling and Econometrics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
O tożsamości osobowej. Leibnizjańskie wątki koncepcji Rodericka M. Chisholma
Autorzy:
Grygianiec, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/2103612.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
G.W. Leibniz
R.M. Chisholm
osoba
identyczność
kryteria
mereologiczny esencjalizm
monada
substancja
ens per se
ens
successivum
Opis:
W dociekaniach filozoficznych Rodericka M. Chisholma (1916–1999) myśl Leibniza zdaje się odgrywać rolę szczególną. W niniejszym tekście skupiam się na drobnym wycinku metafizycznego dorobku Chisholma, w którym inspiracje Leibnizjańskie są najłatwiejsze do identyfikacji. Przedstawiam, po pierwsze, zręby Chisholmowej doktryny metafizycznej na temat osoby i tożsamości osobowej, po drugie, wyliczam i analizuję te elementy wspomnianej doktryny, które czerpią swe inspiracje z myśli Leibniza, po trzecie zaś, wskazuję zasadnicze różnice pomiędzy Chisholmem i Leibnizem w kwestii tożsamości osobowej. Ponieważ dokładne ustalenia na temat wpływu koncepcji Leibniza na doktrynę Chisholma w odniesieniu do tożsamości osobowej wymagałyby dodatkowych, żmudnych badań historycznych, wyniki przedstawione w niniejszym tekście powinny być traktowane jedynie jako hipotezy robocze.
Źródło:
Przegląd Filozoficzny. Nowa Seria; 2016, 4; 405-419
1230-1493
Pojawia się w:
Przegląd Filozoficzny. Nowa Seria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Performance Evaluation of NOMA for 5G Systems Using Automatic Deployment of Multi Users
Autorzy:
Suprith, P. G.
Ahmed, Mohammed Riyaz
Powiązania:
https://bibliotekanauki.pl/articles/2074144.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
NOMA
OMA
ergotic sum rate
bits per channel use
BPCU
outage performance
successive interference cancellation
channel state information
CSI
Opis:
Non-Orthogonal Multiple Access (NOMA) in the fifth generation (5G) system is one of the optimistic technologies for wireless radio access networks. Compared to orthogonal multiple accesses (OMA) reduce the spectral efficiency; NOMA provides the best solution by increasing the data rates. This study evaluates NOMA with a downlink in the automatic deployment of multiusers. The outage performance and ergotic sum-rate gain give the NOMA better performance can be concluded at the final results. NOMA provides the Quality of Service (QoS) to the multi-users by considering the power allocation and data rate factors. Here is considered the outage probability will be 1 when it identifies the different user and allocates the data rate and power.
Źródło:
International Journal of Electronics and Telecommunications; 2022, 68, 2; 337--342
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparisons Between 2D and 3D MPFEM Simulations in Modeling Uniaxial High Velocity Compaction Behaviors of Ti-6Al-4V Powder
Autorzy:
Zhou, Jian
Xu, Hongkun
Zhu, Chenyu
Wang, Bin
Liu, Kun
Powiązania:
https://bibliotekanauki.pl/articles/2048874.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
multi-particle finite element method
Ti-6Al-4V
powder compaction
relative green density
impact energy per unit mass
Opis:
Multi-particle finite element method (MPFEM) simulation has been proven an efficient approach to study the densification behaviors during powder compaction. However, comprehensive comparisons between 2D and 3D MPFEM models should be made, in order to clarify which dimensional model produces more accurate prediction on the densification behaviors. In this paper, uniaxial high velocity compaction experiments using Ti-6Al-4V powder were performed under different impact energy per unit mass notated as Em. Both 2D and 3D MPFEM simulations on the powder compaction process were implemented under displacement control mode, in order to distinguish the differences. First, the experimental final green density of the compacts increased from 0.839 to 0.951 when Em was increased from 73.5 J/g to 171.5 J/g. Then detailed comparisons between two models were made with respect to the typical densification behaviors, such as the density-strain and density-pressure relations. It was revealed that densification of 2D MPFEM model could be relatively easier than 3D model for our case. Finally, validated by the experimental results, 3D MPFEM model generated more realistic predictions than 2D model, in terms of the final green density’s dependence on both the true strain and Em. The reasons were briefly explained by the discrepancies in both the particles’ degrees of freedom and the initial packing density.
Źródło:
Archives of Metallurgy and Materials; 2022, 67, 1; 57-65
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

    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