نتایج جستجو برای: system dynamics model scenario

تعداد نتایج: 4164202  

Journal: :medical journal of islamic republic of iran 0
salime goharinezhad school of health management and information sciences, iran university of medical sciences, tehran, iran, & research center for health services management, institute for futures studies in health, kerman university of medical sciences, kerman, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی کرمان (kerman university of medical sciences) mohammadreza maleki health management and economics research center, iran university of medical sciences, tehran, iran, & department of health services management, school of health management and information sciences, iran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences) hamid reza baradaran endocrine research center, institute of endocrinology and metabolism, iran university of medical sciences tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences) hamid ravaghi health management and economics research center, iran university of medical sciences, tehran, iran, & department of health services management, school of health management and information sciences, iran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences)سازمان های دیگر: health management and economics research center

background: the number of people aged 60 and older is increasing faster than other age groups worldwide. iran will experience a sharp aging population increase in the next decades, and this will pose new challenges to the healthcare system. since providing high quality aged-care services would be the major concern of the policymakers, this question arises that what types of aged care services s...

2015
John P. Ansah Dirk De Korne Steffen Bayer Chong Pan Thiyagarajan Jayabaskar David B. Matchar Nicola Lew Andrew Phua Victoria Koh Ecosse Lamoureux Desmond Quek

BACKGROUND Singapore's population, as that of many other countries, is aging; this is likely to lead to an increase in eye diseases and the demand for eye care. Since ophthalmologist training is long and expensive, early planning is essential. This paper forecasts workforce and training requirements for Singapore up to the year 2040 under several plausible future scenarios. METHODS The Singap...

Journal: :تحقیقات مهندسی کشاورزی 0
فرزاد پاسیار کارشناس ارشد دانشگاه تربیت مدرس محمدجواد منعم دانشیار دانشکدة کشاورزی دانشگاه تربیت مدرس

an important problem in performance evaluations of irrigation systems is the difficulty of the determining share of structural and operational elements and determining improvement solutions. in most studies, the combined impact of structural and operational elements on the performance of irrigation systems is assessed. some researchers try to separate the effects of structural and operational e...

A. Yadav J. Dash M. Padhee S. Bhattacharya

Human language, over its evolutionary history, has emerged as one of the fundamental defining characteristic of the modern man. However, this milestone evolutionary process through natural selection has not left any ’linguistic fossils’ that may enable us to trace back the actual course of development of language and its establishment in human societies. Lacking analytical tools to fathom the cr...

Journal: :international journal of industrial engineering and productional research- 0
yahia zare mehrjerdi department of ie maryam dehghan

abstract in the dynamic and competitive market, managers seek to find effective strategies for new products development. since there has not been a thorough research in this field, this study is based on a review on the risks exist in the npd process and an analysis of risks through fmea approach to prioritize the existent risks and a modeling behavior of the npd process and main risks using sy...

Torque control strategy is a common strategy to control robotic manipulators. However, it becomes complex duo to manipulator dynamics. In addition, position control of Permanent Magnet Synchronous Motors (PMSMs) is a complicated control. Therefore, tracking control of robots driven by PMSMs is a challenging problem. This article presents a novel tracking control of electrically driven robots wh...

B. Tarvirdizadeh k. Alipour, m. Ghiasvand

In this paper, the important formation control problem of nonholonomic wheeled mobile robots is investigated via a leader-follower strategy. To this end, the dynamics model of the considered wheeled mobile robot is derived using Lagrange equations of motion. Then, using ADAMS multi-body simulation software, the obtained dynamics of the wheeled system in MATLAB software is verified. After that, ...

2012
Hiren H. Patel Michael J. Ramsey-Musolf

Abstract We study the dynamics of electroweak symmetry-breaking in an extension of the Standard Model where the Higgs sector is augmented by the addition of a real (Y = 0) isospin triplet. We show that this scenario exhibits a novel, two-step electroweak phase transition, wherein the first step provides the strongly first order transition as required for electroweak baryogenesis followed by a s...

2006
Yulin Ding Yan Zhang

Minimal change is a fundamental principle for modeling system dynamics. In this paper, we study the issue of minimal change for Computational Tree Logic (CTL) model update. We first propose five primitive operations which capture the basic update of the CTL model, and then define the minimal change criteria for CTL model update based on these primitive operations. We provide essential semantic ...

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