نتایج جستجو برای: discrete eventsystems

تعداد نتایج: 160234  

Journal: :international journal of health policy and management 2015
paul jacob robyn zubin shroff omer ramses zang samuel kingue sebastien djienouassi

background nearly every nation in the world faces shortages of health workers in remote areas. cameroon is no exception to this. the ministry of public health (moph) is currently considering several rural retention strategies to motivate qualified health personnel to practice in remote rural areas.   methods to better calibrate these mechanisms and to develop evidence-based retention strategies...

Journal: :international journal of civil engineering 0
s. mohammadi a. bebamzadeh

explosion has always been regarded as one of the most complicated engineering problems. as a result, many engineers have preferred rather simplified empirical approaches in comparison to extremely complex deterministic analyses. in this paper, however, a numerical simulation based on the combined finite/discrete element methodology is presented for analyzing the dynamic behavior of fracturing r...

Journal: :ecopersia 0
seyed parviz jalili kamju assistant professor in economics, humane sciences faculty, university of ayatollah borujerdi (r.a), borujerd, iran rahman khoshakhlagh professor in economics, administrative and economics faculty, university of isfahan, isfahan, iran yashar shirinkhah m.a. in management, management faculty, islamic azad university, kish international branch, kish, iran saeed samadi associate professor in economics, administrative and economics faculty, university of isfahan, isfahan, iran gholam hossein kiani assistant professor in economics, administrative and economics faculty, university of isfahan, isfahan, iran

wetlands as a situ for the growth of native plants, as a habitat for certain species of fish and aquatic birds, and because of their potential economic, cultural and recreational services, are valuable heritage so their protection and conservation is very essential. mostly due to the absence of wetlands services’ valuation, lack of special regulations, and lack of guarantee for these properties...

Journal: :journal of nanostructures 2013
v. fallahi a. khaledi-nasab

in this paper, the interaction between an oscillating dipole moment and a silver nanoparticle has been studied. our calculations are based on mie scattering theory and discrete dipole approximation(dda) method.at first, the resonance frequency due to excitingthe localized surface plasmons has been obtained using mie scattering theory and then by exciting a dipole moment in theclose proximity of...

Journal: :iranian journal of science and technology (sciences) 2014
r. farnoosh

in this article, the discrete time state space model with first-order autoregressive dependent process noise is considered and the recursive method for filtering, prediction and smoothing of the hidden state from the noisy observation is designed. the explicit solution is obtained for the hidden state estimation problem. finally, in a simulation study, the performance of the designed method ...

2011
Wilfrid Gangbo

We prove that any discrete equilibrated system of forces can be decomposed into finitely many bars. We provide an estimate on the cost and the norm of the endpoints of the bars of that decomposition. The questions we address here are of interest in elasticity theory, optimal designs, as well as in functional analysis.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - پژوهشکده فیزیک 1393

امروزه سالیتون ها بعنوان امواج جایگزیده ای که تحت شرایط خاص بدون تغییر شکل در محیط منتشر می-شوند، زمینه مطالعات گسترده ای در حوزه اپتیک غیرخطی هستند. در این راستا توجه به پدیده پراش گسسته، که بعنوان عامل پهن شدگی باریکه نوری در آرایه ای از موجبرهای جفت شده، ظاهر می گردد، ضروری است، زیرا سالیتون های گسسته از خنثی شدن پراش گسسته در این سیستم ها بوسیله عوامل غیرخطی بوجود می آیند. گسستگی سیستم عامل...

داوودی, نادر, مرادلو, امیر جواد,

In this research, nonlinear dynamic analysis of concrete shear wall using a new nonlinear model based on damage mechanics approach and considering bond slip effects is presented. Nonlinear behavior of concrete is modeled by a rotational smeared crack model using damage mechanics approach. The proposed model considers major characteristics of the concrete subjected to two and three dimensional l...

E. Pouriyanezhad, H. Rahami, S. M. Mirhosseini,

In this paper, the discrete method of eigenvectors of covariance matrix has been used to weight minimization of steel frame structures. Eigenvectors of Covariance Matrix (ECM) algorithm is a robust and iterative method for solving optimization problems and is inspired by the CMA-ES method. Both of these methods use covariance matrix in the optimization process, but the covariance matrix calcula...

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