نتایج جستجو برای: particle movement

تعداد نتایج: 329358  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1995
L L Evans P C Bridgman

Organelle movement along actin filaments has been demonstrated in dissociated squid axoplasm [Kurznetsov, S. A., Langford, G.M. & Weiss, D. G. (1992) Nature (London) 356, 722-725 and Bearer, E.L., DeGiorgis, J.A., Bodner, R.A., Kao, A.W. & Reese, T.S. (1993) Proc. Natl. Acad. Sci. USA 90, 11252-11256] but has not been shown to occur in intact neurons. Here we demonstrate that intracellular tran...

Journal: :Cytometry 1997
A H de Win M Worring J Derksen E S Pierson

A method based on analysis of the region of movement and the functioning of the acto-myosin cytoskeleton has been elaborated to quantify and classify patterns of organelle movement in tobacco pollen tubes. The trajectory was dilated to the region of movement, which was then reduced to give a one-pixel-wide skeleton, represented by a graph structure. The longest line in this skeleton was hypothe...

Background: clean room is an environment fully enclosed where parameters such as airborne particles under control and is requirement in the pharmaceutical industries to produce quality products. The aim of this study was to assessment and simulation of airflow and particle of clean room by CFD method in a pharmaceutical industry. Materials and Methods: This study used an experimental study tha...

2012
Shiwei Song

Collision avoidance is useful in a wide range of applications including artificial intelligence, autonomous vehicle navigation, robotics, behavioral simulation, and video games. This paper explores techniques for achieving realistic collision-free movement in a 2-D environment using continuous motion planning. The underlying construct used in this process is a priori information from obstacles ...

2016
Kamil Szewc Katarzyna Walczewska-Szewc Michal Olejnik

In recent years the Smoothed Particle Hydrodynamics (SPH) approach gained popularity in modeling multiphase and free-surface flows. In many situations, due to certain reasons, interface and free-surface fragmentation occurs. As a result single SPH particle solids/droplets of one phase can appear and travel through other phases. In this paper we investigate this issue focusing on a movement of s...

Journal: :Physical review letters 1996
Zhou Chen

A simple model is devised to show that an enzymatic Brownian particle in a static electric field can undergo directional movement when coupled with a nonequilibrium chemical reaction which the particle catalyzes, if at least one of the intermediate states of the catalytic cycle is charged. The direction of the movement depends not only on the asymmetry of the electric field, but also on the dir...

2015
Jianmin Zhu Youfa Xu Tongchao Zhang

Particle Swarm Optimization (PSO) algorithm is a new optimization approach, which has been widely used to solve various and complex optimization problems. However, there are still some imperfections, such as premature convergence and low accuracy. To address such defects, an improved PSO is proposed in this paper. The improved PSO algorithm introduces a uniform search strategy that makes partic...

2011
Ahmad Naebi Moharam Habibnejad Korayem Farhoud Hoseinpour Sureswaran Ramadass Mojtaba Hoseinzadeh

Avoiding collision of nano-particles during manipulation operations and selecting the best route and lowest Atomic Force Microscopy (AFM) movement are major concerns in the area of nano-space. To apply the lowest force on the cantilever from fluid environment forces, we try to minimize AFM movements. Our proposed method calculates the optimum routing for AFM probe movement for nano-particles tr...

2013
Shruti Gupta

To prevent the pilgrims or local people before falling of landslides we create an alert system for it by using modified particle filtering algorithm.in this we detect the change in position and velocity in the video image of rocks of mountain using modified particle filtering algorithm by tracking the movement of particles by using its likelihoods.

Journal: :Computers & Mathematics with Applications 1994

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