نتایج جستجو برای: state model

تعداد نتایج: 2771903  

Journal: :iranian economic review 0

in this paper, we introduce non-interest profit/loss sharing (pls) banks into a three-period overlapping generations model. two types, (low- and high quality) investments are assumed and capital accumulation and level of output in the steady state is considered. then, administrative rationing is introduced to the model. it is shown that the level of capital accumulation and output in equilibriu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1389

run-out-table (rot) is located between last finishing stand and down coiler in a hot strip mill. as the hot steel strip passes from rot, water jets impact on it from top and bottom and strip temperature decreases approximately from 800-950 °c to 500-750°c. the temperature history that strip experience while passing through rot affects significantly the metallurgical and mechanical properties, s...

A. Ebrahimzadeh, M. Mirzaie, M. Sefidgaran,

Reliability of a power system is considerably influenced by its equipments. Power transformers are one of the most critical and expensive equipments of a power system and their proper functions are vital for the substations and utilities. Therefore, reliability model of power transformer is very important in the risk assessment of the engineering systems. This model shows the characteristic...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1382

‏‎the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...

Journal: :journal of physical & theoretical chemistry 2010
m.h. ghorbani r. fazaeli a. ghoorchian

in this work, we investigated the stability of molybdate-phosphonic acid (mpa) complex by density functionaltheory (dft) computations in six solvents with the dielectric constant ranging from 1.92 to 10.36. the methodsare used for calculations are b3lyp and b3pw9 i that have been studied in two series of basis sets: d95nand6-31+g (d,p) for hydrogen and oxygen atoms; lanl2dz for mo and phosphoru...

Journal: :basic and clinical neuroscience 0
abbas pourhedayat school of engineering-emerging technologies, university of tabriz, tabriz, iran. yashar sarbaz school of engineering-emerging technologies, university of tabriz, tabriz, iran.

introduction: huntington disease (hd) is a progressive neurodegenerative disease which affects movement control system of the brain. hd symptoms lead to patient’s gait change and influence stride time intervals. in this study, we present a grey box mathematical model to simulate hddisorders. this model contains main physiological findings about bg. methods: we used artificial neural networks (a...

ژورنال: پژوهش در پزشکی 2013
اشرفی حافظ, اصغر, الماسی, اسحاق, امینی, یاسمن, ساروخانی, دیانا, سایه میری, روح الله, سایه میری, کورش, علی مقدم, کامران,

Abstract Background: Semi-Markov multi-state models are very important to describe regression and progression in chronic diseases and cancers. Purpose of this research was to determine the prognostic factors for survival after acute leukemia using multi-state models. Materials and Methods: In this descriptive longitudinal research, a total of 507 acute leukemia patients (206 acute lymphocyt...

In this paper, a single-product, single-machine system under Markovian deterioration of machine condition and demand uncertainty is studied.  The objective is to find the optimal intervals for inspection and preventive maintenance activities in a condition-based maintenance planning with discrete monitoring framework. At first, a stochastic dynamic programming model whose state variable is the ...

The impact of monetary policy on nominal and real variables in the economy is very important and controversial issues in monetary economics. Thus, the interaction between the real and monetary sectors, are the questions that different schools of economic have different responses and assumptions in this design is neutral and super-neutral of money in the long run. Accordingly, the acceptance or ...

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