نتایج جستجو برای: dynamic spatial linear model

تعداد نتایج: 2980347  

Journal: :The Annals of Statistics 2014

2010

This paper proposes the GMM estimation of the spatial dynamic panel data model with …xed e¤ects when n is large, and T can be large, but small relative to n. By eliminating …xed e¤ects to begin with, we investigate asymptotic properties of the estimators, where exogenous and predetermined variables are used as instruments. For the spatial dynamic panel data model, as compared with the dynamic p...

Journal: :اکو هیدرولوژی 0
مهری کاکی کارشناس ارشد مهندسی منابع آب، دانشگاه تبریز فرخ اسدزاده استادیار گروه علوم خاک، دانشکدۀ کشاورزی، دانشگاه ارومیه احمد فاخری فرد استاد گروه مهندسی آب، دانشکدۀ کشاورزی، دانشگاه تبریز

dam reservoirs supplies water resources for drinking, agriculture, and industry almost in all parts of iran. lack of proper utilization rules and unbalanced demands versus available water has led to many problems regarding to ineffective use of the water resources. precipitation and flow rate are stochastic phenomena. therefore, multi-step processes related to the water use efficiency should be...

2000
Brian Arthur

Any interesting model of economic geography must involve a tension between “centripetal” forces that tend to produce agglomerations and “centrifugal” forces that tend to pull them apart. This paper explores one such model, and shows that the model links together a number of themes in the geography literature. These include: the role of market access, as measured by a measure of “market potentia...

D. Sun, G. White, M. Schootman,

In this paper, a Bayesian hierarchical model is used to anaylze the female breast cancer mortality rates for the State of Missouri from 1969 through 2001. The logit transformations of the mortality rates are assumed to be linear over the time with additive spatial and age effects as intercepts and slopes. Objective priors of the hierarchical model are explored. The Bayesian estimates are quite ...

2008
JEFF HARRISON

In time series analysis using dynamic linear models, retrospective analysis involves the calculation of filtered, or smoothed, distributions for state parameters in the past. We develop and illustrate novel results that are useful in retrospective assessment of the influence of individual observations on such distributions. In particular, new and computationally simple filtering equations are d...

Journal: :آب و خاک 0
فتحی فتحی محمدی محمدی همایی همایی

abstract prediction of input flow into water resources is regarded as one of the most important issues in optimum planning and management in producing electro-water energy and optimum allocation of water into different consumption sources. different parameters affect on input discharge into dams. climate variables including temperature and rainfall have the most effect on input runoff rate to w...

Journal: :civil engineering infrastructures journal 0
seyed mehdi zahrai associate professor, center of excellence for engineering and management of civil infrastructures, school of civil engineering, college of engineering, university of tehran, p.o.box: 11155-4563, tehran, iran. alireza ezoddin ph.d. student, faculty of civil engineering, university of semnan, semnan, iran.

progressive collapse is a chain reaction of failures propagating throughout a portion of the structure disproportionate to the original local failure occurring when a sudden loss of a critical load‐bearing element initiates a structural element failure, eventually resulting in partial or full collapse of the structure. both general services administration (gsa) and united states department of d...

Journal: :دانش علف های هرز ایران 0
المیرا محمد وند دکتری محمد حسن راشد محصل دکتری محمد نصیری محلاتی دکتری نرگس پور طوسی دکتری

distribution and stability of purple nutsedge (cyperus rotundus) population within four fields under corn-fallow rotation were analyzed over two growing seasons in 2005 and 2006 at the agricultural research station of ferdowsi university, mashhad, iran. in 2005, n-fertilizer (urea) was applied at two different application methods (whole and split application). as a result of applying or not app...

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