نتایج جستجو برای: dynamics approach Complex systems

تعداد نتایج: 3168737  

M. Srinivasa Rao V. N. A. Naikan

Repairable standby system’s study and analysis is an important topic in reliability. Analytical techniques become very complicated and unrealistic especially for modern complex systems. There have been attempts in the literature to evolve more realistic techniques using simulation approach for reliability analysis of systems. This paper proposes a hybrid approach called as Markov system ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1392

the importance of writing as a complex skill in applied linguistics has drawn the attention of many researchers to evaluate textbooks in order to help learners gain self-sufficiency and autonomy in the field of language use and communication. investigations have shown that developments in textbooks evaluation can promote the quality of pedagogies and consequently the learning. this study attemp...

Journal: :international journal of supply and operations management 2014
mohammad reza zali mina najafian amir mohammad colabi

system dynamics is a strategic approach for modeling complex systems and analyzing their behavior. dynamic behavior in entrepreneurial system can be modeled using system dynamics approach and dynamic hypotheses about the system`s behavior can be proposed and tested using simulation and computer aided tools. however, as the review of literature shows, studies which link system dynamics modeling ...

ژورنال: آبخیزداری ایران 2021
Rostami Khalaj, Mohamad, Soleimani Sardoo, Farshad, Vakili, Farzaneh,

Integrated water resources management is recognized as one of the main needs of any society due to population growth and technological advancement. To implement integrated water resources management, modeling of this system is essential. On the other hand, water resources systems are highly complex and affected by various factors that are very difficult to identify and determine their role in w...

Journal: :Information 2016
Eduardo B. Fernández

Recent security breaches show the need to secure large, distributed, complex systems. A fundamental, but little discussed aspect of security is how to evaluate when a complete system is secure. Purely formal methods cannot handle this level of complexity. Code checking does not consider the interaction of separate modules working together and is hard to scale. Model-based approaches, such as pa...

Journal: :تحقیقات مهندسی کشاورزی 0
حامد نوذری دانشجوی دکتری دانشکده آب و خاک پردیس کشاورزی و منابع طبیعی دانشگاه تهران عبدالمجید لیاقت دانشیار گروه آبیاری و آبادانی دانشکده آب و خاک پردیس کشاورزی و منابع طبیعی دانشگاه تهران مجید خیاط خلقی دانشیار گروه آبیاری و آبادانی دانشکده آب و خاک پردیس کشاورزی و منابع طبیعی دانشگاه تهران عسگر صدیقی کارشناس ارشد مهندسی صنایع مؤسسه پژوهش در مدیریت و برنامه ریزی انرژی

the system dynamics technique is an object-oriented approach that studies and manages complex feedback systems. its merits include the friendly and easy development and improvement of a model. it is also used as a decision tool for engineering problems. in this paper, the system dynamics technique was used to simulate the performance of a subsurface drainage system in an unsteady state. the mod...

System dynamics is a strategic approach for modeling complex systems and analyzing their behavior. Dynamic behavior in entrepreneurial system can be modeled using System Dynamics Approach and dynamic hypotheses about the system`s behavior can be proposed and tested using simulation and computer aided tools. However, as the review of literature shows, studies which link system dynamics modeling ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تحصیلات تکمیلی علوم پایه زنجان - دانشکده فیزیک 1392

in the first part of this thesis we explored wetting and its dynamics for small droplets. first, we showed how a simple feature of water droplets on a surface, i.e. laplace pressure, can be exploited to build a micropump. we investigated capillary pumping in microchannels both experimentally and numerically. putting two droplets of different sizes at the in/outlet of a microchannel, will ge...

Journal: :international journal of robotics 0
payam zarafshan department of agro-technology, college of aburaihan, university of tehran, pakdasht, tehran, iran ali a. moosavian center of excellence in robotics and control, advanced robotics and automated systems lab, department of mechanical engineering, k. n. toosi university of technology, tehran, iran

cooperative object manipulation control of rigid-flexible multi-body systems in space is studied in this paper. during such tasks, flexible members like solar panels may get vibrated that in turn may lead to some oscillatory disturbing forces on other subsystems, and consequently produces error in the motion of the end-effectors of the cooperative manipulating arms. therefore, to design and dev...

Journal: :international journal of health policy and management 2015
russell mannion huw to davies

‘whistleblowing’ has come to increased prominence in many health systems as a means of identifying and addressing quality and safety issues. but whistleblowing – and the reactions to it – have many complex and ambiguous aspects that need to be considered as part of the broader (organisational) cultural dynamics of healthcare institutions.

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