نتایج جستجو برای: separation angle

تعداد نتایج: 250711  

Journal: :journal of mechanical research and application 2012
m norouzi a amiri deloui m seilsepour

this paper presents an exact analytical solution for two-dimensional conductive heat transfer in spherical composite pressure vessels .the vessels are in spherical shape and fibers are winded in circumferential direction. the analytical solution is obtained under the general boundary conditions which consist of convection, conduction and radiation inside/outside of vessel. the heat transfer equ...

2005
Paul Sava Sergey Fomel

We formulate angle decomposition, during and after wavefield extrapolation, independent of the choice of coordinate systems. The key idea is to describe the source-receiver separation during wavefield extrapolation as a vector quantity. This formulation links the reflection angle to the magnitude of the offset vector, thus reducing the cost and storage associated with angle decomposition. This ...

2012
Michael R. Christy John Apostolides Eduardo D. Rodriguez Paul N. Manson David Gens Thomas Scalea

OBJECTIVE Reconstruction of traumatic ventral hernias often requires additional techniques to the abdominal wall component separation, such as the use of interpositional reconstruction with an acellular dermal matrix or other mesh to bridge the defect. METHODS We have developed a new value termed the "Component Separation Index" to evaluate ventral hernia defects. Choosing a fixed point on a ...

Journal: :Vision research 1990
D M Levi S A Klein

We measured two- and three-line spatial interval and alignment thresholds for a wide range of separations and eccentricities. In order to avoid confounding the role of separation and eccentricity, the test lines were presented on iso-eccentric arcs, with radii between 0.625 and 10 deg. The iso-eccentric paradigm allows separation to be varied over a large range while holding eccentricity consta...

2007
Javier Lopera Mehul P. Patel Srikanth Vasudevan Ed Santavicca

Wind-tunnel experimentswere conducted on a 47-deg sweep, scaled 1303unmanned air vehiclemodel to assess the performance of an innovative windward-surface plasma actuator design for flight control at low angles of attack. Control was implemented by altering the flow past an aft separation ramp on the windward side using a single dielectric barrier discharge plasma actuator. The influence of ramp...

Journal: :Physical chemistry chemical physics : PCCP 2014
H Mendil-Jakani I Zamanillo Lopez P M Legrand V H Mareau L Gonon

The structure of a commercial sulfonated poly(ether ether ketone) (sPEEK) membrane was analyzed by Small-Angle X-Ray Scattering (SAXS) for different water uptakes obtained after immersion in liquid water at various temperatures. For low membrane swelling, the SAXS profile displays only a wide-angle peak in the 0.2-0.3 Å(-1) region. As the membrane swells, two supplementary correlation peaks ari...

Journal: :journal of membrane science and research 0
y. mansourpanah membrane research laboratory, lorestan university, khorramabad, iran e. momeni habili membrane research laboratory, lorestan university, khorramabad, iran

the purpose of this study was to compare the presence or absence of uv irradiation on the separation performance and morphology of the tio2-assembled thin film membranes (in different concentrations). furthermore, an attempt was made to show and compare the effect of the presence of tio2 nanoparticles in aqueous and organic phases during the interfacial polymerization process. sem, zeta potenti...

Journal: :Physical chemistry chemical physics : PCCP 2015
Jian Li Long Yan Yuzhu Zhao Fei Zha Qingtao Wang Ziqiang Lei

In this work, a facile and inexpensive one-step sonochemistry irradiation method was developed for the fabrication of SiO2 nanoparticles functionalized with octadecyltrimethoxysilane and their in situ incorporation into cotton fabrics. The double sides of as-prepared fabrics show both superhydrophobic and superoleophilic properties simultaneously with a high water contact angle of 159 ± 1° and ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید