نتایج جستجو برای: displacement

تعداد نتایج: 54986  

Journal: :international journal of nanoscience and nanotechnology 2014
a. h. korayem a. k. hoshiar n. n. ashtiani m. h. korayem

with the rise in the use of afm (atomic force microscope), we have witnessed a growing use of atomic microscope based nanorobots in the precise displacement of various particles. there are certain limitations to the application of nanorobots in the moving of nanoparticles. one of the most important of these limitations is the lack of an appropriate image feedback concurrent with the displaci...

Journal: :caspian journal of environmental sciences 2010
a. najafi

the effects of traffic frequency and skid trail slope on dry bulk density, litter mass and rutting are examined. treatments included a combination of four different traffic frequencies (3, 7, 14, and 20 passes of a rubber skidder) and three levels of slope ( 20%.) the results showed that dry bulk density, rut depth and soil displacement increased with the increase of traffic frequency and slope...

2001
Taehong Cho Bruce Hayes Jody Kreiman Peter Ladefoged

Effect of V2 Accent on relationships (a) between duration and displacement/velocity ratio, and (b) between peak velocity and displacement for /i/-to-/a/ tongue lowering gestures in the y dimension.. Figure 6.6. Effect of V2 Accent on relationships (a) between duration and displacement/velocity ratio, and (b) between peak velocity and displacement for /a/-to-/i/ tongue fronting gestures in the x...

2014
Ashleen Knutsen Tigran Avoian Sean L. Borkowski Edward Ebramzadeh Lewis E. Zionts Sophia N. Sangiorgio

PURPOSE Determining the magnitude of displacement in pediatric lateral humeral condyle fractures can be difficult. The purpose of this study was to (1) assess the effect of forearm rotation on true fracture displacement using a cadaver model and to (2) determine the accuracy of radiographic measurements of the fracture gap. METHODS A non-displaced fracture was created in three human cadaveric...

2016
Alireza Ashofteh Yazdi Ali Esteki Mohammad Mehdi Dehghan Farhad Tabatabai Ghomsheh

Quantitative measurement of mechanical properties of cervix is an effective tool to diagnose cervical insufficiency, specifically in the last trimester of pregnancy when preterm birth is mostly probable to occur. The objective of this study was to characterize the viscoelastic behavior of rat cervix at different displacement levels and rates early in the last trimester of pregnancy. Distinct di...

Journal: :Evolution; international journal of organic evolution 2005
Karin S Pfennig David W Pfennig

Character displacement has long been considered a major cause of adaptive diversification. When species compete for resources or mates, character displacement minimizes competition by promoting divergence in phenotypes associated with resource use (ecological character displacement) or mate attraction (reproductive character displacement). In this study, we investigated whether character displa...

Journal: :Physics in medicine and biology 2007
Hairong Shi Tomy Varghese

A large number of the strain estimation methods presented in the literature are based on the assumption of tissue continuity that establishes a continuous displacement field. However, in certain locations in the body such as the arteries in vivo scanning may produce displacement fields that are discontinuous between the two walls of the artery. Many of the displacement or strain estimators fail...

2008
E. Kumamoto Y. Takao D. Kokuryo A. Okada T. Murakami T. Kaihara K. Kuroda

one respiratory cycle. Figure 4 Relationship of displacement of the edge point of LR direction. ‘Respective’ is displacement from the image before that. ‘Accumulated’ is displacement from the base image(#1). Figure 1 The vessels of interested #1 #3, the branch and the endmost point of branch vessel for displacement analysis. Three Dimensional Targeting for Liver MRgFUS Based on Vessel Tree Trac...

1999
Eyvind Aker Knut Jørgen Måløy Alex Hansen

Immiscible displacement of one fluid by another fluid in porous media has important applications in a wide range of different technologies. Most often mentioned is hydrology and and oil recovery. From a theoretical point of view, the displacement process is very complex and hard to describe in detail. Especially, much attention has been paid to the rich variety of displacement structures that i...

2000
Brian Smits Peter Shirley Michael M. Stark

We present an algorithm for ray tracing displacement maps that requires no additional storage over the base model. Displacement maps are rarely used in ray tracing due to the cost associated with storing and intersecting the displaced geometry. This is unfortunate because displacement maps allow the addition of large amounts of geometric complexity into models. Our method works for models compo...

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