The Dynamics And Motions Of Dust Particles In Two And Three Negatively Charged Particle System: Theory And Modelling

Snowfall process is analyzed from the perspective of computer simulation in this paper, the dynamic properties and the static properties of snow particles are abstracted based on particle system theory. The snow particles movement is simulated with wind and no wind. To solve the problems of the blur of snowing environment and firn phenomena, the paper puts forward a method of applying pulverization to snowing virtual environment. The tests show that the simulation methods of snowfall and pulverization are effective and real, which are suit for real-time virtual environment.

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The influence of finite masses on the threshold behaviour of scattering in a three charged particle system

Journal of Physics B Atomic and Molecular Physics ◽

10.1088/0022-3700/15/19/012 ◽

1982 ◽

Vol 15 (19) ◽

pp. 3423-3440 ◽

Cited By ~ 15

Author(s):

M Gailitis

Keyword(s):

Charged Particle ◽

Particle System ◽

Threshold Behaviour

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Diffusional mechanism of emission from a charged particle in dust particles

Astrophysics ◽

10.1007/bf03036098 ◽

1998 ◽

Vol 41 (3) ◽

pp. 289-298

Author(s):

Zh. S. Gevorkian ◽

V. V. Hambarian ◽

A. A. Akopian

Keyword(s):

Charged Particle ◽

Dust Particles ◽

Diffusional Mechanism

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Effective interaction in three-charged-particle system

Annals of Physics ◽

10.1016/0003-4916(91)90032-4 ◽

1991 ◽

Vol 209 (2) ◽

pp. 306-326

Author(s):

V.E Kuzmichev ◽

A.V Efetov ◽

V.V Peresypkin

Keyword(s):

Charged Particle ◽

Particle System ◽

Effective Interaction

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Software Tools for Abstract Prototyping of Design Support Tools

Volume 1: 20th Computers and Information in Engineering Conference ◽

10.1115/detc2000/cie-14613 ◽

2000 ◽

Author(s):

Eliab Z. Opiyo ◽

Imre Horváth ◽

Joris S. M. Vergeest

Keyword(s):

System Theory ◽

Particle System ◽

Software Tool ◽

Levels Of Abstraction ◽

Design Support ◽

Support Tools ◽

Modeling Software ◽

Multistage Design ◽

Computer Based ◽

Definition Of

Abstract Systematic design, user centered implementation and testing to requirements can contribute significantly to assuring quality of design support tools. The problem is that disorganized requirements elicitation and testing is generally time consuming and can sometimes lead to formulation of incomplete specification requirements. Furthermore, current software testing techniques involve usage of partially or fully implemented prototypes and thus provide feedback for the developers too late. These problems can be avoided through the application of a novel computer based pre-implementation testing technique, called abstract prototyping. It comprises structured multistage design and evaluation cycles, involving both the developers and the potential end-users as the evaluation subjects. This technique introduces quality improvement cycles early in the development process, well before the implementation of prototypes, and provides a structured framework for defining requirements and testing of design support tools. In this paper we first introduce the abstract prototyping technique. Then we describe the architecture and functionality of the software developed for abstract prototyping. We also give an example on the application of this software tool for evaluation of the particle system theory for vague modeling of shapes in conceptual design. This software tool facilitated definition of requirements and testing to the formulated requirements. In this case the particle system theory represented the highest level of abstraction of the vague modeling software tool. The same procedure can be used in the subsequent levels of abstraction of methods, algorithms and pilot implementations. We can argue that the abstract prototyping technique helps to achieve the kinds of improvement and quality gains that are expected in the development of new design support tools and in upgrading the existing tools.

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