نتایج جستجو برای: and model structure

تعداد نتایج: 17306162  

جدی‌چروده, مهناز, ذوالفقارپور, فرهاد, موسوی, میرحمید,

 In this paper, we calculate nuclear structure function and EMC effect of 40Ca and 56Fe nuclei. To achive the goals, we consider Fermi motion and binding energy contrbiution in the harmonic oscillator model. In this model, harmonic oscillator parameter ħω related to shells root mean square radius and for free nucleon structure functions, is obtained from GRV’s free nucleon structure functions. ...

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...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده منابع طبیعی و علوم دریایی 1393

روابط بین مراحل زندگی (لاروی، گذر و بلوغ) شانه دار mnemiopsis leidyi و شاخصه های فیزیکوشیمیایی و زیستی با استفاده از مدل های مختلف بر اساس تغییرات زمانی (ماه) و مکانی (ترانسکت، ایستگاه و لایه) در امتداد سواحل مازندران طی سال 1391 ارزیابی شد. به منظور بالا بردن عملکرد مدل ها، از گونه های غالب پلانکتونی در هر فصل (90% تراکم کل) برای مدل سازی استفاده گردید. برای درک بهتر از وضعیت اکولوژیکی شانه ...

Journal: :مدیریت دولتی 0
حمیدرضا حسن زاده دانشیار دانشگاه تهران، پردیس قم، ایران حسین خنیفر دانشیار دانشگاه تهران، پردیس قم، ایران حسن کولیوند کارشناس ارشد مدیریت دولتی دانشگاه تهران، پردیس قم، ایران ناصر عسگری عضوهیات علمی دانشگاه شهید ستاری. تهران، ایران

the basic goal of this research is recognition of losses of organizational structure of iranian central insurance and secondary importance are recognition of losses of organizationalcomplexity, organizational formalization and organizational centralization. for data collecting is designed aquestionnaire that is measuring organizational structure situation in robin’s structural dimension’s model...

Ghajar, M., Kakaee, A.H., Mashhadi, B.,

Nowadays, due to increasing the complexity of IC engines, calibration task becomes more severe and the need to use surrogate models for investigating of the engine behavior arises. Accordingly, many black box modeling approaches have been used in this context among which network based models are of the most powerful approaches thanks to their flexible structures. In this paper four network base...

Journal: :مکانیک سیالات و آیرودینامیک 0
محمد تشکری بافقی محمدرضا الهامی علیرضا ربیعی

in this paper, the fluid-structure interaction phenomenon and the research history are described. then due to the complex and specific working conditions of a turbine blade, we have investigated the phenomenon on this subject. the fluid-structure interaction on a turbine blade model has been simulated by using structural and fluid flow section of ansys software. a model of turbine blade with ai...

Journal: :فصلنامه بین المللی مطالعات اقتصاد و مدیریت 0
ali nazemi ali souri kazhal rashidi

abstract: the main goal of this paper is to modeling of producers’ strategic suggestions for each electricity manufacturer in an oligopolistic structure. according to the proposed structure of the electricity market modeling; this paper uses a dynamic model based on cournot equilibrium. due to the large volume of required information, the implementation of the model is limited to a regional ele...

Mehrdad Hossein Panahi Mohammad Bagher Tajeddin

This study attempts to reveal the effect of family structure on social participation of  Payame Noor university students, it consists of 339 students. The theoretical framework of this investigation is based on two hypotheses. Hegen personality structure theory and Parsons action theory.  One hypotheses is on satisfactoriness in the family structure were based on personality structure theory an...

Journal: :تحقیقات مهندسی کشاورزی 0
سیدمجتبی رضوی نبوی دانشجوی دکتری سازه های آبی محمود شفاعی بجستان استاد هیدرولیک، دانشکده مهندسی و علوم آب، دانشگاه شهید چمران سیدمحمود کاشفی پور استاد هیدرولیک، دانشکده مهندسی و علوم آب، دانشگاه شهید چمران

grade control structures are hydraulic structures used to stabilize a river bed. scour downstream of this structure is the main cause of its failure. studies have developed numerous empirical relations for scour depth prediction that designers must choose between to decide the most effective equation for a specific application. this study tested the condition of submerged jets over beds of sedi...

Since the structure and foundation are built on soil, the soil is the major platform by which seismic vibrations are transmitted to the structure, and has noticeable effects on the response and behavior of structure during earthquakes. In this research, the recently introduced Performance-based plastic design (PBPD) and its modified Performance-based plastic design (MPBPD) method in which soil ...

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