نتایج جستجو برای: keywords gravity model

تعداد نتایج: 3802081  

Journal: :Small Axe: A Caribbean Journal of Criticism 2022

This essay introduces a new featured section, to be published in Small Axe annually, that explores the critical vocabulary of field Caribbean studies.

Journal: :فیزیک زمین و فضا 0
مهروز خادمی کارشناس ارشد ژئودزی، گروه مهندسی نقشه برداری، دانشکده نقشه برداری، دانشگاه صنعتی خواجه نصیرالدین طوسی، تهران، ایران مهدی نجفی علمداری دانشیار، گروه مهندسی نقشه برداری، دانشکده نقشه برداری، دانشگاه صنعتی خواجه نصیرالدین طوسی، تهران، ایران محمدعلی شریفی استادیار، گروه مهندسی نقشه برداری، پردیس دانشکده های فنی، دانشگاه تهران، ایران

the recent dedicated satellite gravimetry missions have provided huge amount of high quality gravity data with global coverage. from computational point of view, estimation of the unknown gravity field parameters is a highly demanding task due to the sheer number of observations and the unknown coefficients. different computational schemes have been proposed to tackle the problem. since the ear...

1998
J. Navarro - Salas M. Navarro

We give an explicit canonical transformation which transforms a generic chiral 2D dilaton gravity model into a free field theory.

2008
Štefan BOJNEC

The effects of the institutional determinants on trade in agricultural and food products are analyzed using a gravity model approach. We focus on the impact of the quality of governance and the similarity of institutions in explaining variation in bilateral agricultural and food trade patterns among the OECD countries. Results confirmed the separate effects for the institutional similarity and ...

2004
Jonas Vlachos Mark Aguiar Tore Ellingsen Gita Gopinath

By combining new data on bilateral asset holdings with data on securities regulation in an empirical gravity model, it is found that bilateral differences in securities regulation lead to decreased portfolio holdings. Hence, regulatory harmonization can foster financial integration. The results are especially strong for equity holdings. It is verified that the results do not just reflect genera...

2006
S. Brock Blomberg

This paper provides an original study into how democratization and globalization in‡uence transnational terrorism — examining the motives of terrorists and how democratic institutions and international integration in‡uence non-state economic actors. We employ a gravity model to investigate the relative importance of globalization and democratization on transnational terrorism and external con‡i...

Journal: :journal of physical and theoretical chemistry 0
farideh keshavarz rezaei department of chemistry, faculty of science, arak branch, islamic azad university

using gaussian 03, software the thermodynamic functions such as gibbs free energy, g, enthalpy, h, and entropy, s, of alanine and valine amino acids were theoretically studied at different solvents. first, the density functional theory (b3lyp) level with 3-21g, 6-31g and 6-31+g basis sets were employed to optimization of isolated alanine and valine amino acids in the gas phase. moreover, vib...

Journal: :Complex & Intelligent Systems 2021

Abstract For large amount of patent texts, how to extract their keywords in an unsupervised way is a very important problem. In existing methods, only the own information texts analyzed. this study, improved TextRank model proposed, which prior public knowledge effectively utilized. Specifically, two following points are first considered: (1) network constructed for each text, (2) based on dict...

Journal: :JCP 2010
Liping Wang

Firstly, the paper reviews the study situation of trade gravity model at home and abroad, and points out that the trade gravity model is not widely applied in the industrial trade flow. Secondly, the paper takes the export of China’s textile industry as an example to put forward export trade gravity model, and analyzes the influence of trade protection upon export of our textiles and other infl...

2016
Toshihiro Okubo

The purpose of this paper is to discuss the trading system in the inter-war period concerning the Japanese Empire by means of border effect analysis in the gravity model. The results show sizeable and steadily increasing trading bloc border effects from the 1910s through the 1930s. This sizeable border effect might have resulted from many possible factors: trade diversion and creation due to in...

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