نتایج جستجو برای: time systems

تعداد نتایج: 2826591  

Journal: :physiology and pharmacology 0
صالح زاهدی اصل saleh zahediasl endocrine physiology research center, research institute for endocrine sciences,shahid beheshti university of medical sciences, tehran, iran

during the recent decades, substantial changes are made in the borders and contents of physiology as a basic course for the students in medicine. here some strategies are presented to preserve the classical and integrative approaches in teaching physiology, while these approaches extent our knowledge to molecular, sub-cellular and cellular levels.

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده ادبیات و زبانهای خارجی 1390

abstract this research is about a longitudinal case study of english morpheme acquisition by a persian speaking child l2 learner of english (2 .9-3).the goal of this research has been discovery of the child ‘s ability in acquiring of english morphemes in a persian context while only one person (the child’ s father)has been talking to her.this child has also been exposed to english languag...

ژورنال: کنترل 2020

In this paper, the problem of finite-time stability and finite-time stabilization for a specific class of dynamical systems with nonlinear functions in the presence time-varying delay and norm-bounded uncertainty terms is investigated. Nonlinear functions are considered to satisfy the Lipchitz conditions. At first, sufficient conditions to guarantee the finite-time stability for time-delay nonl...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده ریاضی و کامپیوتر 1389

چکیده در این پایاننامه ابتدا فضاهای متریک فازی را به صورت مشاهدهگرایانه بررسی میکنیم. فضاهای متریک فازی و توپولوژی تولید شده توسط این متریک معرفی شدهاند. سپس بر اساس فضاهایی که در فصل اول معرفی شدهاند آشوب توپولوژیکی، مینیمالیتی و مجموعههای متقاطع در شیوههای مختلف بررسی شده- اند. در فصل سوم مفهوم مجموعههای جاذب فازی به عنوان یک مفهوم پایهای در سیستمهای نیم-دینامیکی نسبی، تعریف شده است. ...

Journal: :international journal of smart electrical engineering 0

this paper is concerned with the problem of synchronization for complex dynamic networks with state and coupling time-delays. therefore, larger class and more complicated complex dynamic networks can be considered for the synchronization problem. based on the lyapunov-krasovskii functional, a delay-independent criterion is obtained and formulated in the form of linear matrix inequalities (lmis)...

Journal: :iranian red crescent medical journal 0
mahmoudreza peyravi prehospital and disaster medicine centre, sahlgrenska academy, gothenburg university, gothenburg, sweden; medical schools, shiraz university of medical sciences, shiraz, ir iran; prehospital and disaster medicine centre, regionens hus se-40544, gothenburg, sweden, tel: +46-704005074 per örtenwal prehospital and disaster medicine centre, sahlgrenska academy, gothenburg university, gothenburg, sweden ahmadreza djalali center for research and education in emergency and disaster medicine, università degli studi del piemonte orientale novara, italy amir khorram-manesh prehospital and disaster medicine centre, sahlgrenska academy, gothenburg university, gothenburg, sweden

background advanced ambulance service (emergency medical services/ems) is considered to be an integral part of emergency medical care as the first assets responding to emergencies and disasters in the prehospital setting in most developed countries. objectives the aim of this study was to evaluate the current situation of shiraz’s ems by comparing data obtained during two different time periods...

Journal: :journal of sciences, islamic republic of iran 2011
n. elyasi

in this paper mathematical structure of time-dependent lagrangian systems and their symmetries are extended and the explicit relation between constants of motion and infinitesimal symmetries of time-dependent lagrangian systems are considered. starting point is time-independent lagrangian systems ,then we extend mathematical concepts of these systems such as equivalent lagrangian systems to the...

Journal: :international journal of electrical and electronics engineering 0
ala shariati hamid d. taghirad

this paper presents h∞ control problem for input-delayed systems. a neutral system approach is considered to the design of pd controller for input delay systems in presence of uncertain time-invariant delay. using this approach, the resulting closed-loop system turns into a specific time-delay system of neutral type. the significant specification of this neutral system is that its delayed coeff...

N. Elyasi

In this paper Mathematical structure of time-dependent Lagrangian systems and their symmetries are extended and the explicit relation between constants of motion and infinitesimal symmetries of time-dependent Lagrangian systems are considered. Starting point is time-independent Lagrangian systems ,then we extend mathematical concepts of these systems such as equivalent lagrangian systems to th...

Journal: :Journal of Dynamic Systems, Measurement, and Control 1974

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