نتایج جستجو برای: crash

تعداد نتایج: 9632  

2016
Seyed Taghi Heydari Kamran B. Lankarani Mehrdad Vossoughi Kazem Javanmardi Yaser Sarikhani Kourosh Mahjoor Mojtaba Mahmoodi Mohammad Khabaz Shirazi Maryam Akbari

BACKGROUND Crash helmet plays an important role in protecting the deriver's head during crashes and reduces the rate of severe injuries and fatalities. Although it has been proved that wearing the crash helmet can save the deriver's life by around 42%; previous studies showed that the rate of wearing crash helmet has not been acceptable in Iran. Due to the huge number of motorcyclists on the ro...

2011
Anurag Pande Mohamed Abdel-Aty Liang Hsia

Research into the application of freeway loop detector data for traffic safety has gained momentum in recent years. The incompleteness of data from loop detectors has been a common problem in both the development and the implementation of models. The effect of individual crash precursors, obtained one at a time from a series of loop detectors, on relative risk of crash occurrence was examined t...

Journal: :JAMA pediatrics 2013
Alexandra L C Martiniuk Teresa Senserrick Serigne Lo Ann Williamson Wei Du Ronald R Grunstein Mark Woodward Nick Glozier Mark Stevenson Robyn Norton Rebecca Q Ivers

IMPORTANCE Short sleep duration is common in adolescents and young adults, and short sleep duration is a risk factor for motor vehicle crash. OBJECTIVE To assess the association between hours of sleep and the risk for motor vehicle crash, including the time of day of crash and types of crash (single, multiple vehicle, run off road, and intersection). DESIGN Prospective cohort study. SETTI...

Journal: :BMC Emergency Medicine 2009
Davoud Khorasani-Zavareh Hamid Reza Khankeh Reza Mohammadi Lucie Laflamme Ali Bikmoradi Bo JA Haglund

BACKGROUND Road traffic injuries are a major public health problem, especially in low- and middle-income countries. Post-crash management can play a significant role in minimizing crash consequences and saving lives. Iran has one of the highest mortality rates from road traffic injuries in the world. The present study attempts to fill the knowledge gap and explores stakeholders' perceptions of ...

حسن چناری بوکت, رویا دارابی مرجان محمودی خاتمی

هدف این مقاله مطالعه‌ی تأثیر برخی ویژگی‌های کیفی حسابرسی بر ریزش قیمت سهام در شرکت‌های پذیرفته شده در بورس اوراق بهادار تهران است. اطلاعات مورد نیاز برای این پژوهش از صورت‌های مالی 81 شرکت در دوره‌ی زمانی 1393-1389 گردآوری شده است. در این پژوهش کیفیت حسابرسی از طریق معیارهای تخصص حسابرس در صنعت، دوره‌ی تصدی حسابرس، استقلال حسابرس و اندازه‌ی موسسه‌ی حسابرسی اندازه‌گیری شده است. یافته‌های حاصل از...

This paper investigates the parametric study of the empty and foam-filled end-capped tubes under quasi static and dynamic loadings. The numerical crash analysis of the empty and foam-filled tubes was performed using the explicit finite element code ABAQUS- explicit. Satisfactory agreements were generally achieved between the numerical and experimental results. In order to determine the crash be...

2013
Dongxi Zheng David A. Noyce DONGXI ZHENG XIAO QIN ROSS TILLMAN DAVID A. NOYCE

This article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date...

2016
Carole Delporte Hugues Fauconnier Sergio Rajsbaum Michel Raynal

An immediate snapshot object is a high level communication object, built on top of a read/write distributed system in which all except one processes may crash. It allows each process to write a value and obtains a set of pairs (process id, value) such that, despite process crashes and asynchrony, the sets obtained by the processes satisfy noteworthy inclusion properties. Considering an n-proces...

2003
Peter Broadwell Matthew Harren Naveen Sastry

This paper presents Scrash, a system that safeguards user privacy by removing sensitive data from crash reports that are sent to developers after program failures. Remote crash reporting, while of great help to the developer, risks the user’s privacy because crash reports may contain sensitive user information such as passwords and credit card numbers. Scrash modifies the source code of C progr...

1996
Malcolm H. Ray

This paper describes a method of comparing two acceleration time histories to determine if they describe similar physical events. The method can be used to assess the repeatability of full-scale crash tests and it can also be used as a criterion for assessing how well a finite element analysis of a collision event simulates a corresponding full-scale crash test. The method is used to compare a ...

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