نتایج جستجو برای: spatial variations modeling

تعداد نتایج: 891204  

Journal: :معماری و شهرسازی آرمان شهر 0
mohammadereza pourmohammadi professor of geography & urban planning, faculty of geography, university of tabriz, tabriz, iran. mahshid ghorbanian ph.d candidate in geography & urban planning, faculty of geography, university of tabriz, tabriz, iran.

crime is the product of an interaction between the person and the setting. understanding crime has been the focus of researchers in both design and social fields for a few decades. the empirical research within the design field on the issue of crime has mainly focused on site-specific and situational features of a place. in the past decade, a considerable body of design research begun to devote...

Journal: :آب و خاک 0

so far several methods have been developed for mapping and interpolation of isohyets.one of the recently accepted methods is geographically weighting regression which is suitable for evaluation of spatial heterogeneity of dependent variable by using local regressions. in order to evaluate annually precipitation spatial variation, this study was conducted in gilan province which precipitation is...

2011
Bin Zou J. Gaines Wilson F. Benjamin Zhan Yongnian Zeng Kongjiang Wu

An understanding of the complexity of spatial-temporal variations in regional air quality and its respective source contributors is one of the priority research areas due to the adverse effects of air pollution on human health and the environment. In this paper, we integrate air dispersion modeling and Geographic Information System (GIS) based spatial analysis methods to characterize regional a...

Argani, M, Ezimand, K, Javanbakht, M, Saghafipour, A,

  Background and Objectives: Environmental conditions in different geographical areas provide a basis for the spread of some diseases. Cutaneous leishmaniasis is a serious threat to public health and is one of the arthropod-borne diseases. The prevalence and distribution of this disease is affected by environmental and climatic factors. The aim of this study was to model the Spatio-temporal va...

The traditional approaches of modeling and estimation of highly skewed deposits have led to incorrect evaluations, creating challenges and risks in resource management. The low concentration of the rare earth element (REE) deposits, on one hand, and their strategic importance, on the other, enhances the necessity of multivariate modeling of these deposits. The wide variations of the grades and ...

Journal: :international journal of environmental research 2011
b. zou f.b. zhan y. zeng ch. yorke x. liu

this study investigates the effectiveness of the kriging interpolation model and the emission weighted proximity model (ewpm) in assessing relative exposure risk of air pollution using results from the american meteorological society/epa regulatory model (aermod) as benchmarks. we used simulated exposure risk to so2 in the dallas area in texas in this evaluation. results suggest that the relati...

Journal: :iranian journal of mechanical engineering transactions of the isme 0
j. hamedi department of mechanical engineering, science and research branch, islamic azad university, tehran, iran h. zohoor distinguished professor and member, center of excellence in design, robotics and automation, school of mechanical engineering, sharif university of technology

modeling and wrench feasible workspace analysis of a spatial cable suspended robots is presented. a six-cable spatial cable robot is used the same as stewart robots. due to slow motion of the robot we suppose the motion as pseudostatic and kinetostatic modeling is performed. various workspaces are defined and the results of simulation are presented on the basis of various workspaces and applied...

Journal: :journal of sciences, islamic republic of iran 2013
s.s. mousavi m. mohammadzadeh

spatial-temporal modeling of air pollutants, ground-level ozone concentrations in particular, has attracted recent attention because by using spatial-temporal modeling, can analyze, interpolate or predict ozone levels at any location. in this paper we consider daily averages of troposphere ozone over tehran city. for eliminating the trend of data, a dynamic linear model is used, then some featu...

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