نتایج جستجو برای: hazard spectrum
تعداد نتایج: 287829 فیلتر نتایج به سال:
This study compares two different approaches for estimating the probability of earthquake damage to typical residential structures. The first is an empirical approach using intensity-based hazard and insurance claims data from the 1989 ML 5.6 Newcastle earthquake, the most costly in Australian history. The second is an engineering-based approach that defines hazard in terms of spectral accelera...
the waiting time between children births are called tempo. this phenomenon plays a crucial role in the child and mother health. the purpose of the present study is determination of factors which influence this variable of interest. a significance level of 5% and power of 80% considered to calculate the required sample size for this cross sectional study. the sample size of 124 women determined ...
moral hazards are the result of an expansive range of factors mostly originating in the patients’ roles. the objective of the present study was to investigate patient incentives for moral hazards using the experiences of experts of basic iranian insurance organizations. this was a qualitative research. data were collected through semi-structured interviews. the study population included all exp...
risk assessment and management techniques are used in industrial activities to reduce accidents by applying preventive and protective methods. in this article a preventive approach called hazard and operability study (hazop) was used. the application of hazop, a process hazard identification and control method, has been demonstrated in the fatty acid unit of golnar oil company, northwest of teh...
objective: tempo is the average waiting time to next birth for a woman. role of fertility as the most important phenomenon determining population fluctuations due to the studies of it compared with other demographic phenomena be important and review the multifarious socioeconomic factors of it share a large effective population studies. general purpose of this study is fitting the cox model to...
Interaction of a high intensity laser with matter may generate an ionizing radiation hazard. Very limited studies have been made, however, on the laser-induced radiation protection issue. This work reviews available literature on the physics and characteristics of laserinduced X-ray hazards. Important aspects include the laser-to-electron energy conversion efficiency, electron angular distribut...
We introduce a new design style called extended burst-mode. The extended burst-mode design style covers a wide spectrum of sequential circuits ranging from delay-insensitive to synchronous. We can synthesize multiple-input change asynchronous finite state machines, and many circuits that fall in the gray area (hard to classify as synchronous or asynchronous) which are difficult or impossible to...
با افزایش دانش بشر در باره پدیده زلزله و نحوه رفتار سازه ها در زمان زلزله، راهکارهای افزایش ایمنی در مقابل این پدیده نیز به روز می شوند. لذا هدف از این تحقیق ، ارائه دو روش تحلیل شبه استاتیکی غیرخطی به نام ، الف: روش تحلیل طیف ظرفیت capacity spectrum method و ب:روش تحلیل استاتیکی فزاینده غیرخطی مودی modal pushover analysis و مقایسه خطای آنها نسبت به روش تحلیل دینامیکی تاریخچه زمانی غیر ...
BACKGROUND Before 1971, several million women were exposed in utero to diethylstilbestrol (DES) given to their mothers to prevent pregnancy complications. Several adverse outcomes have been linked to such exposure, but their cumulative effects are not well understood. METHODS We combined data from three studies initiated in the 1970s with continued long-term follow-up of 4653 women exposed in...
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