نتایج جستجو برای: central plane

تعداد نتایج: 584066  

2015
Andreas Meyer Jennifer Wiecek Gregor Schnakenburg Olav Schiemann

The terpyridine group of the title compound, C31H27N4O, assumes an all-transoid conformation and is essentially planar with the dihedral angles between the mean planes of the central pyridine and the two outer rings amounting to 3.87 (5) and 1.98 (5)°. The pyrroline-N-oxyl group commonly seen in such nitroxyls is found in the title structure and the mean plane of the pyrroline ring subtends a d...

Journal: :نشریه دانشکده فنی 0
کارن ابری نیا رحیم تحریری ماسوله

many metal forming problems have been solved using the slip line field method but all of them have either been two-dimensional (plane strain or plain stress) or axisymmetric problems. in this paper a procedure has been proposed by which the slip line field solution to three dimensional problems of metal forming becomes possible. for this purpose the extrusion of shaped sections has been taken a...

Journal: :Cell motility and the cytoskeleton 2003
David R Mitchell

Thin section electron micrographs of rapidly fixed Chlamydomonas cells were used to establish a relationship between flagellar bends and orientation of the central pair microtubule complex. Using conditions that preserve flagellar waveforms during both forward swimming (asymmetric bends) and backward swimming (symmetric bends), we found that central pair orientation differs in bent regions and ...

2014
Mostafa Ajallooeian Steve W. Heim Peter Eckert Massimo Vespignani Auke Ijspeert

In this thesis we explore the use of a tail for terrestrial locomotion of animals and robots. We focus on steady-state locomotion in the sagittal plane over smooth terrain, with an emphasis on the exploitation of natural dynamics. We approach the problem in three ways: first we analyze the equations of motion to find the effect on the dynamics of the control input associated with the tail. From...

Ahmadi, Hamid, Kordkarimi, Majid,

In this paper, results extracted from a set of stress analyses performed on 46 FE models for unstiffened gap tubular KT-joints are presented and discussed. The main objective of the FE analyses, validated against experimental data, was to run a parametric investigation on the effects of geometrical characteristics of the joint on the values of the stress concentration factors (SCFs). The SCF is...

2014
Darryl Naidoo Thomas Godin Michael Fromager Kamel Aït-Ameur Andrew Forbes

We explore an interferometric beam shaping technique that considers the coaxial superposition of two Gaussian beams. This technique is traditionally implemented in a Mach-Zehnder interferometer; however, to avoid phase shift drift due to vibrations and thermal effects we employ amplitude and phase modulation with a spatial light modulator (SLM) to achieve the beam shaping. We consider two Gauss...

2009
Shuai Shao Jie Sun

In the title compound, C(14)H(12)ClNO, the central acetamide plane forms dihedral angles of 76.0 (2) and 64.0 (2)° with the phenyl rings and the phenyl rings form a dihedral angle of 71.8 (2)° with each other.

2005
Afshin Sepehri Rama Chellappa

An approach for estimating the 3D absolute position and orientation of the hand in space using parametric modelling of the central region of the hand and some of its applications are presented. A stereo camera is used to first build a preliminary disparity map of the hand. Then, the best fitting plane to the disparity points is computed using robust estimation. Next, the 3D hand plane is calcul...

2006
James E. Harvey Martina Atanassova Andrey Krywonos

James E. Harvey Martina Atanassova Andrey Krywonos University of Central Florida Center for Research and Education in Optics and Lasers CREOL P.O. Box 162700 4000 Central Florida Boulevard Orlando, Florida 32826 Abstract. Most imaging systems today include a mosaic detector array in the focal plane. Optical designers of astronomical telescopes typically produce a design that yields a superb on-...

1998
S. Cho

The h-deformed quantum plane is a counterpart of the q-deformed one in the set of quantum planes which are covariant under those quantum deformations of GL(2) which admit a central determinant. We have investigated the noncommutative geometry of the h-deformed quantum plane. There is a 2-parameter family of torsion-free linear connections, a 1-parameter sub-family of which are compatible with a...

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