نتایج جستجو برای: longitudinal direction

تعداد نتایج: 275619  

G. A. Barani, M. J. Khanjani and J. Ahmad- Auli,

In recent years, installation of plates in canal beds have been considered for sedimentation control and bed load reduction at canal intake. These planes, called submerged vanes, are different in dimensions. They are installed at intakes in-group with reasonable distance from each other. Presence of these vanes at intakes initiate transverse shear stress on river bed and causes sediment transpo...

G. A. Barani, M. J. Khanjani and J. Ahmad- Auli,

In recent years, installation of plates in canal beds have been considered for sedimentation control and bed load reduction at canal intake. These planes, called submerged vanes, are different in dimensions. They are installed at intakes in-group with reasonable distance from each other. Presence of these vanes at intakes initiate transverse shear stress on river bed and causes sediment transpo...

2009
Luca Salasnich

Starting from the three-dimensional Gross-Pitaevskii equation (3D GPE) we derive a 1D generalized nonpolynomial Schrödinger equation (1D g-NPSE) which describes the dynamics of Bose-Einstein condensates under the action of a generic potential in the longitudinal axial direction and of an anisotropic harmonic potential in the transverse radial direction. This equation reduces to the familiar 1D ...

2008
S. Euphrasie P. Vairac B. Cretin

We investigated the influence of using a conical end on the longitudinal electrical nearfield generated by a coaxial cable. Simulations with Finite Integration Technique show that this influence greatly varies along the longitudinal axis. Experimental measurements were also carried out. To that purpose, we designed a new set-up to measure the electrical field in one direction with a spatial res...

Journal: :Physical review. B, Condensed matter 1996
Dekorsy Kim Cho Kurz Kuznetsov Förster

Coherent longitudinal-optical phonons are generated in semiconductor heterostructures. The coupling of the coherent, longitudinal-optic ~LO! phonons to collective carrier excitations oscillating parallel to the growth direction of GaAs/Al0.36Ga0.64As quantum wells is investigated with femtosecond time-resolution. This coupling is found to be weak for small well widths and evolves towards the bu...

2010
Megumu Suzuki

The stress distributions of filament in bent yarn have never been seen experimentally.So the stress distributions in the cross section and the longitudinal direction of bent undrawn Tetron filaments are studied photoelastically in this paper.As the results,it is known that when the curvature is small,the compressible stress is equal to the tensile stress and when it is large, the compressible o...

2010
S. Langius Raymond A. de Callafon

Abstract: In this paper a three dimensional non-linear model has been derived to describe the dynamics of an unstable moment exchange unicycle robot. The robot uses a driving wheel to provide stabilization in longitudinal direction, while a second moment exchange wheel with a large inertia is used for stabilization in lateral direction. For validation purposes, the resulting equations of motion...

2010
Hui Zhan Rajind Mendis Daniel M. Mittleman

We experimentally characterize the field confinement properties of various parallel-plate waveguide (PPWG) geometries in the terahertz spectral range. In contrast to infinite-width PPWGs with free-space diffraction along the unshielded direction, finite-width (and also tapered) PPWGs showwell-confined THz fields at the output facet. Both the transverse field component, perpendicular to the insi...

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