in the present paper, employing a complete model of a passenger car, contribution of various components and assemblies in the frontal crash energy absorption is determined. thickness of components with more remarkable contribution is increased to improve the occupant safety. furthermore, effects of substituting the metallic bumper with one fabricated from gmt materials on the frontal crash beha...

Errors in the perception of mean-reversion expectations can cause stockmarket crashes. This view was proposed by Fischer Black after the stockmarket crash of 1987. I discuss this concept and specify a stock-price model with mean-reversion in returns. Using daily data of the Dow Jones Industrial Average and the S&P500 index I show that mean-reversion in returns is a transient but recurring pheno...

Many distributed applications have a strong requirement for efficient dissemination of large amounts of information to widely spread consumers in large networks. These include applications in e-commerce and telecommunication. Publish/subscribe is considered one of the most important interaction styles to model communication at large scale. Producers publish information for a topic and consumers...

Specialized topics on financial data analysis from a numerical and physical point of view are discussed. They pertain to the analysis of crash prediction in stock market indices and to the persistence or not of coherent and random sequences in fluctuations of foreign exchange currency rates. A brief historical introduction to crashes is given, including recent observations on the DJIA and the S...

OBJECTIVE Signalized intersections are accident-prone areas especially for rear-end crashes due to the fact that the diversity of the braking behaviors of drivers increases during the signal change. The objective of this article is to improve knowledge of the relationship between rear-end crashes occurring at signalized intersections and a series of potential traffic risk factors classified by ...

OBJECTIVE To provide updated estimates of the relationship between the number and ages of passengers present in a vehicle and the crash risk per mile driven of 16- and 17-year-old drivers. METHODS Data on crashes that occurred in years 2007-2010 and data on the number of miles driven in years 2008-2009 were examined. Rates of crash involvement and driver death per mile driven were estimated f...

background and objectives: in many studies, chronic diseases are associated with incidence of driving accident. the main objective of the present study is investigation the effect of physical and mental disorders status of bus drivers on the occurrence of crashes. materials and methods: this research is a cross-sectional and descriptive-analytical study that was performed on 665 bus drivers' pu...

background and objectives: in many studies, chronic diseases are associated with incidence of driving accident. the main objective of the present study is investigation the effect of physical and mental disorders status of bus drivers on the occurrence of crashes. materials and methods: this research is a cross-sectional and descriptive-analytical study that was performed on 665 bus drivers' pu...