نتایج جستجو برای: transport system
تعداد نتایج: 2451761 فیلتر نتایج به سال:
چکیده : نظام انتخاباتی قواعد و چار چوب های به رسمیت شناخته شده ای است که بیانگر چگونگی تبدیل آرای مردم به مناصب و پست های سیاسی است. این نظام انتخابات باید به گونه ای عمل کند که نتیجه آن فراهم شدن مکانیسم و ساز و کار مطلوب و مناسب برای برگزاری انتخابات سالم و رقابتی باشد. به نظر می رسد نظام انتخاباتی جمهوری اسلامی ایران دارای ضعف ها و نواقصی است که به سبب آن ها نمی توان انتخابات مطلوب را برگزا...
Introduction: Pre-hospital emergency services in Iran need to move towards evidence-based services. The aim of this study was to evaluation the physiological early warning scoring system (PEWS) for transport management of internal patients. Methods: This is a cross sectional study. The study populations are internal patients that transport by pre-hospital emergency of Semnan province. Physiol...
an important need in radiation therapy is a fast and accurate treatment planning system. this system using ct data and characteristics of the radiation beam, calculates the dose in all points of the patient’s volume. two main factors in planning system are “accuracy” and “speed”. according to these factors, various generation of treatment planning systems are developed. this article is the re...
urbanization development followed by increase in travel demand in recent years made some problems for cities such as traffic, lack of suitable parking, environmental issues, economic and social etc. meanwhile, public transport, especially bus services are very important in the development of urban functions thus, paying attention to different aspects of the transport in order to increase its ef...
objective: most previous retrospective studies failed to show a consistent association between pre-hospital time intervals and mortality in trauma patients, bringing the recommendation of “transport fast to increase survival” under question. the aim of this study was to evaluate the association of response time, scene time, and transport time with 24-hour in-hospital mortality. methods: in th...
In this research, a thermodynamic model used to describe the growth of single crystals by chemical vapor transport technique with iodine as the transporting agent. The optimum growth condition in the system has been predicted theoretically based on partial of different components. Some experiments were carried out for growing crystals by the chemical vapor transport method using iodine as a ...
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