2: Implementing a GPU-Only Particle-Collision System with ASTC 3D Textures and OpenGL ES 3.0

GPU Pro 6 ◽  
2015 ◽  
pp. 387-404
Keyword(s):  
Particle Collision ◽  
Collision System ◽  
Opengl Es ◽  
3D Textures

Screened Collision-Induced Quantum Interference in Collisional Plasmas

2009 ◽  
Vol 64 (3-4) ◽  
pp. 233-236 ◽  
Author(s):  
Sang-Chul Na ◽  
Young-Dae Jung
Keyword(s):  
Cross Section ◽  
Quantum Interference ◽  
Potential Model ◽  
Collision Cross Section ◽  
Electron Collision ◽  
Particle Collision ◽  
Interference Effects ◽  
Particle Collisions ◽  
Collision System ◽  
Electron Collisions

Abstract The effects of neutral particle collisions on the quantum interference in electron-electron collisions are investigated in collisional plasmas. The effective potential model taking into account the electronneutral particle collision effects is employed in order to obtain the electron-electron collision cross section including the total spin states of the collision system. It is found that the collision effects significantly enhance the cross section. In addition, the collision-induced quantum interference effects are found to be significant in the singlet spin state. It is shown that the quantum interference effects decrease with increasing the thermal energy of the plasma. It is also shown that the quantum interference effects increase with an increase of the collision energy

Effect of particle collision behavior on heat transfer performance in a down-flow circulating fluidized bed evaporator

2021 ◽  
Vol 381 ◽  
pp. 55-67
Author(s):  
Feng Jiang ◽  
Hongyu Wang ◽  
Yi Liu ◽  
Guopeng Qi ◽  
Ahmed Esmail Al-Rawni ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Fluidized Bed ◽  
Heat Transfer Performance ◽  
Circulating Fluidized Bed ◽  
Particle Collision ◽  
Transfer Performance

scholarly journals CFD-DEM Simulation of Spouted Bed Dynamics under High Temperature with an Adhesive Model

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2276
Author(s):  
Zhao Chen ◽  
Lin Jiang ◽  
Mofan Qiu ◽  
Meng Chen ◽  
Rongzheng Liu ◽  
...  
Keyword(s):  
High Temperature ◽  
Particle Surface ◽  
Particle Collision ◽  
Gas Velocity ◽  
Spouted Bed ◽  
Dem Simulation ◽  
Linear Spring ◽  
Adhesion Model ◽  
Adhesive Model ◽  
Damping Model

Particle adhesion is of great importance to coating processes due to its effect on fluidization. Currently, Computational Fluid Dynamics-Discrete Element Method (CFD-DEM) has become a powerful tool for the study of multiphase flows. Various contact force models have also been proposed. However, particle dynamics in high temperature will be changed with particle surface properties changing. In view of this, an adhesion model is developed based on approaching-loading-unloading-detaching idea and particle surface change under high temperature in this paper. Analyses of the adhesion model are given through two particle collision process and validated by experiment. Effects of inlet gas velocity and adhesion intensity on spouted bed dynamics are investigated. It is concluded that fluidization cycle will be accelerated by adhesion, and intensity of fluidization will be marginally enhanced by slight adhesion. Within a certain range, increasing inlet gas velocity will lead to strong intensity of particle motion. A parameter sensitivity comparison of linear spring-damping model and Hertz-Mindlin Model is given, which shows in case of small overlaps, forces calculated by both models have little distinction, diametrically opposed to that of large overlaps.

The Anabar collision system as an element of the Columbia supercontinent: 600 Ma of compression (2.0–1.3 Ga)

2007 ◽  
Vol 417 (2) ◽  
pp. 1355-1358 ◽  
Author(s):  
O. M. Rosen ◽  
L. K. Levsky ◽  
D. Z. Zhuravlev ◽  
Z. V. Spetsius ◽  
A. Ya. Rotman ◽  
...  
Keyword(s):  
Collision System ◽  
Columbia Supercontinent

PLATELET AGGREGATION DOES NOT CONFORM TO SIMPLE PARTICLE COLLISION THEORY

1987 ◽  
Author(s):  
Moideen P Jamaluddin
Keyword(s):  
Platelet Aggregation ◽  
Rate Equation ◽  
Rate Constants ◽  
Kinetic Scheme ◽  
Order Type ◽  
Second Order ◽  
Particle Collision ◽  
Collision Theory ◽  
Rate Law ◽  
First Order

Platelet aggregation kinetics, according to the particle collision theory, generally assumed to apply, ought to conform to a second order type of rate law. But published data on the time-course of ADP-induced single platelet recruitment into aggregates were found not to do so and to lead to abnormal second order rate constants much larger than even their theoretical upper bounds. The data were, instead, found to fit a first order type of rate law rather well with rate constants in the range of 0.04 - 0.27 s-1. These results were confirmed in our laboratory employing gelfiltered calf platelets. Thus a mechanism much more complex than hithertofore recognized, is operative. The following kinetic scheme was formulated on the basis of information gleaned from the literature.where P is the nonaggregable, discoid platelet, A the agonist, P* an aggregable platelet form with membranous protrusions, and P** another aggregable platelet form with pseudopods. Taking into account the relative magnitudes of the k*s and assuming aggregation to be driven by hydrophobic interaction between complementary surfaces of P* and P** species, a rate equation was derived for aggregation. The kinetic scheme and the rate equation could account for the apparent first order rate law and other empirical observations in the literature.

Auditory Icons as Impending Collision System Warning Signals in Commercial Motor Vehicles

1998 ◽  
Vol 42 (15) ◽  
pp. 1127-1131 ◽  
Author(s):  
Steven M. Belz ◽  
Gary S. Robinson ◽  
John G. Casali
Keyword(s):  
Motor Vehicle ◽  
Visual Display ◽  
Motor Vehicles ◽  
Collision System ◽  
Collision Warning ◽  
Multiple Modalities ◽  
Driver Performance ◽  
Driving Task ◽  
Side Collision ◽  
Simulated Driving Task

This simulator-based study examined the use of conventional auditory warnings (tonal, non-verbal sounds) and auditory icons (representational, non-verbal sounds), alone and in combination with a dash-mounted visual display to warn commercial motor vehicle operators of impending front-to-rear and side collision situations. Driver performance was measured in the simulated driving task via brake response time in the front-to-rear collision scenarios and via a count of accident occurrence in the side collision scenarios. For both front-to-rear and side collision scenarios, auditory icons elicited significantly improved driver performance over conventional auditory warnings. Driver performance improved when collision warning information was presented through multiple modalities.

Clothing color of surrogate Bicyclist for Pre-Collision System evaluation

2017 ◽  
Author(s):  
Qiang Yi ◽  
Stanley Chien ◽  
Li Fu ◽  
Lingxi Li ◽  
Yaobin Chen ◽  
...  
Keyword(s):  
System Evaluation ◽  
Collision System
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