نتایج جستجو برای: systems analysis

تعداد نتایج: 3758357  

Journal: :international journal of agricultural management and development 2011
olajide o. adeola w. doppler

this study focused on the income generating capacity of farm family’s own resources and examined the vulnerability to financial risk among the remote and peri-urban farming systems of imo state. primary data was collected using the farming and rural systems approach to randomly select and interview 120 households. descriptive statistics and mann whitney test were used in assessing between group...

ژورنال: پژوهش های ریاضی 2018
Sadri, Nasrin, Gazor, Majid ,

This paper aims to introduce the original ideas of normal form theory and bifurcation analysis and control of small amplitude limit cycles in a non-technical terms so that it would be comprehensible to wide ranges of Persian speaking engineers and physicists. The history of normal form goes back to more than one hundreds ago, that is to the original ideas coming from Henry Poincare. This tool p...

In this article, we survey the asymptotic stability analysis of fractional differential systems with the Prabhakar fractional derivatives. We present the stability regions for these types of fractional differential systems. A brief comparison with the stability aspects of fractional differential systems in the sense of Riemann-Liouville fractional derivatives is also given. 

Journal: :International Journal of Disaster Risk Science 2013

Journal: :علوم رفتاری 0
رقیه آتشکار roqaye atashkar department of psychology, tarbiat modares university, tehran, i.r. iran.گروه روانشناسی، دانشگاه تربیت مدرس، تهران – ایران علی فتحی آشتیانی ali fathi-ashtiani‎ استاد مرکز تحقیقات علوم رفتاری، دانشگاه علوم پزشکی بقیه اله(عج) پرویز آزادفلاح parviz azadfallah دانشیار گروه روانشناسی، دانشگاه تربیت مدرس

introduction: this paper investigates the relationships between extraversion, neuroticism and psychoticism dimensions with brain / behavioral systems. methods: randomly selected 128 female university students in tehran completed gray-wilson personality questionnaire and eysenck personality questionnaire-reversion, using pearson correlation coefficiency and regression analysis, result: the resul...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده ادبیات و علوم انسانی 1391

nowadays enhancing critical thinking in learners is considered one of the foreign language teachers’ tasks due to its high position in foreign language classrooms. when it comes to selecting materials for language classrooms, there are obviously some criteria that teachers should apply. the present study aimed at a critical thinking based analysis of ten picture story books and ten folktales th...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یاسوج - دانشکده ادبیات و علوم انسانی 1392

an investigation into oral interaction in language classes: a conversation analytic point of view the aim of this thesis is to analyze the interaction between language teachers and students in english language institutes. this work is done in the context of yasuj city. learning another language, which is in most cases english, involves many variables. one of these variables is the linguistic...

ژورنال: علوم آب و خاک 2003
محمدرضا علیرضایی, , ابراهیم صالحی, , محمدجواد منعم, ,

Recent studies have shown poor performance of irrigation systems, which indicates the requirement for special attention to performance improvement. The first step for improving the performance of irrigation systems is evaluation of the present situation. Performance evaluation methodologies presented so far are either qualitative such as DA (Diagnostic Analysis), RA (Rapid Appraisal) and FA (Fr...

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

in reality, most structures involved in geotechnical engineering are three dimensional in nature, and although in many, plane strain or axisymmetric approximations are reasonable, there are some, for which 3-d treatment is required. the quantity of data, and the size of the various vectors and matrices involved in such analysis, increase dramatically. this has sever implications for computer r...

Journal: :Journal of Computational and Nonlinear Dynamics 2019

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