نتایج جستجو برای: anion agglomeration

تعداد نتایج: 39596  

2007
Jed Kolko

Economic research on industry location and agglomeration has focused nearly exclusively on manufacturing. This paper shows that services are prominent among the most agglomerated industries, especially at the county level. Because traditional measures of knowledge spillovers, natural resource inputs, and labor pooling explain little of agglomeration in services industries, this paper takes an a...

Journal: :Chemphyschem : a European journal of chemical physics and physical chemistry 2017
Enno Kätelhön Stanislav V Sokolov Thomas R Bartlett Richard G Compton

Agglomeration processes in non-interacting particle systems can be understood from a thermodynamic point of view. If the enthalpy of agglomeration is negligible, the distribution of agglomeration states adopts the state of highest entropy. Herein, we provide the exact analytical solution to the mole fractions of agglomerates comprising i monomers, xi =2-i .

2004
Rainald Borck Michael Pflüger DIW Berlin

Tax competition for a mobile factor is different in ‘new economic geography settings’ compared to standard tax competition models. The agglomeration rent which accrues to the mobile factor in the core region can be taxed. Moreover, a tax differential between the core and the periphery can be maintained. The present paper reexamines this issue in a setting which, in addition to the core-peripher...

Journal: :JCP 2011
Huayin Yu Weiping Gu

Industrial agglomeration has gradually become an economic focus in recent years. Scholars has done a lot of research about the formation mechanism of industry agglomeration and its influencing factors, but the spatial correlation of variables has still been neglected. Firstly this paper gives a brief introduction about Geoda software and Matlab neural network toolbox, then use spatial statistic...

2003
Ying Ge John Bonin Fang Cai Shi Li Justin Lin

How do foreign trade and foreign direct investment affect regional inequality? Foreign trade and investment may affect internal economic geography, and the resulting industry agglomeration may contribute to regional inequality. This paper provides empirical evidence supporting this linkage. The results indicate that the increasing regional inequality in China has been accompanied by an increase...

2015
Marion Drut Aurélie Mahieux

This paper aims to correct standard measures of agglomeration economies to account for air pollution generated by commuting. This paper examines the impact of nitrogen oxide (NOX) a pollutant mainly released by transportation on worker productivity. Literature on agglomeration economies highlights the positive role of employment density on productivity, without accounting for the environmental ...

Journal: :علوم و تکنولوژی پلیمر 0
سپهر رواتی میرحمیدرضا قریشی غلامرضا بخشنده فرود عباسی سورکی

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Journal: :journal of paramedical sciences 0
maliheh hasan nia biotechnology research center, semnan university of medical sciences, semnan, iran mostafa rezaei-tavirani proteomics research center, shahid beheshti university of medical sciences, tehran, iran ali reza nikoofar department of radiation oncology, iran university of medical sciences, tehran, iran hamed masoumi department of medical physics, semnan university of medical sciences, semnan, iran reza nasr 1 biotechnology research center, semnan university of medical sciences, semnan, iran hadi hasanzadeh department of medical physics, semnan university of medical sciences, semnan, iran

tio 2 nanoparticles (nps) might be considered as the most important photosensitizer due to high photocatalytic and sonocatalytic efficiency, low toxicity, excellent biocompatibility, low cost and high chemical stability. tio 2 -nps normally tend to aggregate in physiological medium and which results to decreased cell viability and inducing expression of stress-related genes. thus dispersion and...

2008
Ryohei Nakamura

Urban agglomeration economies are usually divided into two categories: urbanization economies and localization economies. In the 1970s and 1980s, a number of attempts were made to estimate urbanization economies and/or localization economies directly in the production function. Since the work by Glaeser et al. in 1992, however, historical effects on agglomeration called dynamic externalities in...

2011
Youngho Kang

Unlike policy makers‟ belief that geographical proximity to incumbent exporters encourages non-exporters to start exporting through positive information externalities, the empirical evidence in early studies is mixed. To make a contribution to fill the gap, this paper reexamines the relationship between the spatial and industrial agglomeration of exporting firms and the probability of being an ...

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