نتایج جستجو برای: collision analysis

تعداد نتایج: 2862863  

Sadreddin Hosseini Timoty Su

Classical trajectory (Monte Carlo) calculation is used to calculate collision rate constants of ion-quadrupolar molecule interactions for the H¯+C2H2 system. The method presented here takes into account the effect of the induced dipole-induced dipole potential on ion-quadrupolar molecule collision rate constants. It is also assumed that the colliding particles have a d...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 1998
sadreddin hosseini timoty su

classical trajectory (monte carlo) calculation is used to calculate collision rate constants of ion-quadrupolar molecule interactions for the h¯+c2h2 system. the method presented here takes into account the effect of the induced dipole-induced dipole potential on ion-quadrupolar molecule collision rate constants. it is also assumed that the colliding particles have a definite size. the thermal ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2013
behzad shahbazi bahram rezai sayed mohammad javad koleini mohammad noparast

in this research, the effect of bubble surface area flux, sb, and particle size on flotation rate constant, k, of pyrite (fes2) particles was studied using bubble-particle interactions. the bubble-particle collision, attachment and detachment efficiencies were calculated under different flow regimes. the k increased with increase in the collision efficiency and decrease in the detachment effici...

2017
Nengchao Lyu Gang Huang Chaozhong Wu Zhicheng Duan Pingfan Li

In road traffic accidents, the analysis of a vehicle's collision angle plays a key role in identifying a traffic accident's form and cause. However, because accurate estimation of vehicle collision angle involves many factors, it is difficult to accurately determine it in cases in which less physical evidence is available and there is a lack of monitoring. This paper establishes the mathematica...

Journal: :Journal of neurophysiology 2010
Hideki Nakagawa Kang Hongjian

In this study, we examined the neuronal correlates of frog collision avoidance behavior. Single unit recordings in the optic tectum showed that 11 neurons gave selective responses to objects approaching on a direct collision course. The collision-sensitive neurons exhibited extremely tight tuning for collision bound trajectories with mean half-width at half height values of 0.8 and 0.9° (n = 4)...

2012
Chien-Min Su Ki-Yin Chang Chih-Yung Cheng

This article proposes a new collision avoidance decision method for ships, allowing ships at risk of collision to take timely collision avoidance measures to ensure safe passage. Through vessel traffic service (VTS) collision alert system, an analysis can be made for the probability of a ship collision and an early warning can be issued. For ships in potential collision danger, the proposed met...

ژورنال: مهندسی دریا 2009
دارایی, جواد, مصطفی قره باغی, احمدرضا, چناقلو, محمدرضا,

In this paper, the behavior of a typical jack-up platform under accidental loading of ship collision was investigated. The studied platform was modeled using ANSYS software and analyzed dynamically under ship impact. The platform was also analyzed dynamically under secondary ship impact. The initial collision results showed that the main energy absorption mechanism in impact to jack-up platform...

In this paper, the initiation and propagation of structural damage in a building due to the truck collision to one of its corner columns were investigated. For this purpose, a three-dimensional 4-story moment resisting steel frame with intermediate ductility was considered. The structure was designed using ETABS software under standard dead, live, and earthquake loads, and then impact loading w...

Esmaeel Ayati Masoud Ghasemi Noughabi Seyed Saber Naseralavi,

Development of disaggregate models for estimating different property damage collision type frequencies in urban intersections has rarely been studied, particularly in Iran. It seems very little research work being implemented for studying the effect factors on collision type frequency at intersections. The main objective of this paper is to develop suitable statistical models to predict types o...

2007
Ran Canetti Ronald L. Rivest Madhu Sudan Luca Trevisan Salil P. Vadhan Hoeteck Wee

We initiate a complexity-theoretic treatment of hardness amplification for collision-resistant hash functions, namely the transformation of weakly collision-resistant hash functions into strongly collision-resistant ones in the standard model of computation. We measure the level of collision resistance by the maximum probability, over the choice of the key, for which an efficient adversary can ...

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