نتایج جستجو برای: and model structure

تعداد نتایج: 17306162  

Journal: :journal of mathematical modeling 0
debasis mukherjee department of mathematics, vivekananda college, thakurpukur, kolkata-700063, india

the predator-prey model with stage structure for predator is generalized in the context of ecoepidemiology, where the prey population is infected by a microparasite and the predator completely avoids consuming the infected prey. the intraspecific competition of infected prey is considered. all the equilibria are characterized and the existence of a hopf bifurcation at the coexistence equilibriu...

Journal: :iranian journal of toxicology 0
فرزانه محمدی فارسانی farzaneh mohammadi farsani department of genetics, university of shahrekord, shahrekord, ir iran. هدا آیت hoda ayat department of genetics, university of shahrekord, shahrekord, ir iran. علی محمد احدی ali mohammad ahadi department of genetics, university of shahrekord, shahrekord, ir iran.

background: meict is the first chlorotoxin-like peptide isolated from the iranian scorpion mesobuthus eupeus. chlorotoxin (ctx) is a neurotoxin that specially binds to (mmp-2) on ma-lignant cells and now is used in treatment of glioma. in the present study, we have used homology modeling to propose the 3d structure of meictand analyze its interaction with mmp-2 and its snp types. methods:the st...

Vahid Taghizadeh Khanqah Younes Badavar Nahandi

The aim of this empirical study is to explore the trade-off model and pecking order model of capital structure. The investigation is performed using panel data procedures for a sample of 76 firms listed in Tehran Stock Exchange during 2007-2010.The study employs OLS regression model in examining the capital structure of firms in Iran. The study employs variables reflecting differing theoretical...

Redesigning Bazaar Physical Structure According to its Dealing Culture Structure Case Study: Arab Bazaar in Ahvaz City The Bazaar physical structure is formed from the arrangement syntax of division units, Interfaces, joints and boundaries to each other and the Arabic Bazaar also follows this example. This structure is the result of arrangement syntax of division units with linear pattern a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده ادبیات و زبانهای خارجی 1392

abstract while task-based instruction is considered as the most effective way to learn a language in the related literature, it is oversimplified on various grounds. different variables may affect how students are engaged with not only the language but also with the task itself. the present study was conducted to investigate language and task related engagement on the basis of the task typolog...

ژورنال: مهندسی دریا 2006
بهزاد, مهدی, سلماسی, حمید, سیف, محمدسعید, کاظم زاده حنانی, سیامک,

In this paper, several models of structure-fluid coupling are employed to investigate on the vibration behavior of the structure. Using basic equations of vibration and employing a mathematical model, a single degree of freedom system is analyzed. Some parameters of the mathematical model are obtained from test. To examine structure-flow interaction, coupled system of nonlinear second-order dif...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم انسانی 1394

اگرکیفیت معلم کلاس برای بهبودیادگیری دانش آموزحیاتی است،پس کیفیت اساتیددانشجو-معلمان، یابه عبارتی معلمین معلمان نیزبرای پیشرفت آموزش بسیارمهم واساسی است.ناگفته پیداست که یک سیستم مناسب آموزش معلمان ،معلمین با کیفیتی را تربیت خواهدکرد.که این کار منجربه داشتن مدارس خوب، ودرنتیجه نیروی کارماهرتروشهروندبهتربرای جامعه خواهدشد. اساتیددانشجو-معلمان نقشی بسیارمهم را در سیستم اموزش معلمان درسراسرجهان ای...

In this study, through series of shaking table tests and statistical analysis, the efficiency of Uniform Tuned Liquid Column Damper (UTLCD) in structures resting on loose soils, considering soil-structure interaction was investigated. The soil beneath the structure is loose sandy soil. The Laminar Shear Box (LSB) as a soil container was adopted and the scaled form of the prototype structure nam...

ژورنال: مدیریت سلامت 2008
آصف زاده, سعید, طبیبی, سید جمال الدین, محبی فر, رفعت,

Introduction: One of the most important challenges of our time is the need to have a system of disaster management to confront the natural and man made disasters. In order to set in place such a system in a country, there is an essential necessity to design a special organizational structure in the areas of disaster management. The main objective of this study...

Journal: :research in pharmaceutical sciences 0

p2x 7 antagonist activity for a set of 49 molecules of the p2x 7 receptor antagonists, derivatives of purine, was modeled with the aid of chemometric and artificial intelligence techniques. the activity of these compounds was estimated by means of combination of principal component analysis (pca), as a well-known data reduction method, genetic algorithm (ga), as a variable selection technique, ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید