نتایج جستجو برای: hybrid front capturing and tracking method

تعداد نتایج: 17113333  

2005
Franklin Génin Bruce Fryxell Suresh Menon

The present study focuses on the simulation of highly reactive two-phase flows associated with detonations. A hybrid scheme, that combines a high-order shock-capturing method and a second/fourth-order accurate, low dissipation scheme is first validated by simulating blast wave discharges and shock-vortex interaction. The Large-Eddy Simulation model used in the present formulation is considered ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان همدان - دانشکده ادبیات و علوم انسانی 1390

abstract this study is an attempt to determine the effect of nano- technology education on science lesson for fifth grade in primary school in the city of kermanshah. this research is experimental and is conducted in the from of pre-test and post- test for the control group. an achievement test was administered to determine the rate of learning in the students. the research is an applied one. ...

Journal: :international journal of hospital research 2013
nima riahi seyyed-mahdi hosseini-motlagh babak teimourpour

background and objectives: efficient cost management in hospitals’ pharmaceutical inventories have thepotential to remarkably contribute to optimization of overall hospital expenditures. to this end, reliable forecasting models for accurate prediction of future pharmaceutical demands are instrumental. while the linear methods are frequently used for forecasting purposes chiefly due to their sim...

1998
HELGE HOLDEN NILS HENRIK RISEBRO

We discuss how to combine a front tracking method with dimensional splitting to solve numerically systems of conservation laws in two space dimensions. In addition we present an adaptive grid reenement strategy. The method is unconditionally stable and allows for moderately high cfl numbers (typically 1{4), and thus it is highly eecient. The method is applied to the Euler equations of gas dynam...

2010
Isao MIYAGAWA Shigeru NAGAI Kazuhiro SUGIYAMA

We are developing shape recovery technology that can semi-automatically process image sequences using the idea of ” Shape from Motion” . In this paper, we investigate an acquisition and recovery method that processes hybrid feature points extracted from both high-resolution images and video images using the factorization method. The 3D object models are assumed to have N-point column shape, and...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی و مهندسی 1390

magnetic resonance imaging (mri) is a notable medical imaging technique that makes of phenomenon of nuclear magnetic resonance. because of the resolution and the technology being harmless, mri has considered as the most desirable imaging technique in clinical applications. the visual quality of mri plays an important role in accuracy of medical delineations that can be seriously degraded by exi...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2004
Esteban Moro

We study the propagation of pulled fronts in the A<--> A+A microscopic reaction-diffusion process using Monte Carlo simulations. In the mean field approximation the process is described by the deterministic Fisher-Kolmogorov-Petrovsky-Piscounov equation. In particular, we concentrate on the corrections to the deterministic behavior due to the number of particles per correlated volume Omega. By ...

In this paper, the novel application of organic/inorganic perovskite hybrid materials isproposed for grid-connected Photo-voltaic (PV) cells. The perovskite hybrid cells attracted a lot of interest due to their potential in combining advantages of both components. Looking to the future, there is no doubt that these new generations of hybrid materials, born from the very fruitful activitie...

2009
James Malcolm Yogesh Rathi Allen Tannenbaum

Many techniques for tracking based on gradient descent cannot follow objects as they undergo large movements or deformation. On the other hand, multi-hypothesis trackers capable of handling such behavior are computationally expensive. The standard graph cut technique offers a middle ground, quickly capturing objects anywhere in the image; however, because of its global nature, it is prone to ca...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی عمران 1391

today, scouring is one of the important topics in the river and coastal engineering so that the most destruction in the bridges is occurred due to this phenomenon. whereas the bridges are assumed as the most important connecting structures in the communications roads in the country and their importance is doubled while floodwater, thus exact design and maintenance thereof is very crucial. f...

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