نتایج جستجو برای: parameterized by a curvature
تعداد نتایج: 14898719 فیلتر نتایج به سال:
background current surgical treatments in peyronie's disease are accompanied by complications such as penile shortening, loss of sensation, erectile dysfunction and recurrence of disease. the aim of this study was the evaluation of clinical results of intracavernosal plaque excision in peyronie's disease. methods the operation was performed on 35 men. it was consisted of incising the ...
Objective Increase in the normal sagittal curvature (hyper kyphosis) may occur in individuals after skeletal maturity due to the poor postural habits and muscular weaknesses. Failure of changing these postural habits or strengthening the postural muscles may lead to deformities that cause pain and discomfort. The current study aims at determining the effect of a novel mechanical reminder &ldquo...
with the increasing population and the need for more food, as well as with the development of science and technology, human approach to unnatural and often chemical inputs to increase agricultural production has been a great expansion and problems such as increased cancers, chronic diseases has created environmental pollution. implementation of organic organic is a solution to these problems . ...
A constant mean curvature (CMC) surface is a critical point of surface area with respect to variations that preserve the volume bounded by the surface. We present a simple and elegant method for constructing a triangle mesh approximation to a CMC surface by minimizing the discretized surface area subject to a fixed volume and other constraints such as fixed boundary curves. The key idea is an o...
This paper presents a numerical study of local mass transfer coefficients in a 90° bend using the RNG version of k–e model to include the influence of curvature on the turbulent transport. Simulations were performed for flow through a 90°, 3-D bend for Reynolds numbers of 13500, 90000, and 390000, Schmidt numbers of 2.53 and 700 and curvature ratios of 1.5, 2, and 2.5. The differences betwe...
terracing is an operator that is applied to potential field data to produce regions of constant field amplitude that are separated by sharp boundaries. magnetic data are usually transformed into pseudo-gravity data (baranov, 1957) prior to the application of terracing. the objective of terracing is ‘to recast potential field maps into a geologic map like format’ (cordell and mccafferty 1989). t...
from 1950s onward, new theories and critical approaches burgeoned across humanities. these theories were context-oriented; as a result, the analysis of discursive practices gained significance. thus, social, political, historical and cultural discourses that have been hitherto marginalized and considered inferior to literary texts, were introduced as important texts to be analyzed by critics. o...
in this project, 4,4?-methylenebis(3-chloro-2,6-diethyl trimellitimidobenzene) as a diacid, was prepared by the reaction of trimellitic anhydride (tma) with 4,4?-methylenebis(3-chloro-2,6-diethylaniline) (mcdea). the novel poly(amide-imide) (pai) was synthesized from the reaction of 4,4?-methylenebis(3-chloro-2,6-diethyl trimellitimidobenzene) as a diacid with mcdea under green condition using ...
In visual homing tasks, animals as well as robots can compute their movements from the current view and a snapshot taken at a home position. Solving this problem exactly would require knowledge about the distances to visible landmarks, information , which is not directly available to passive vision systems. We propose a homing scheme that dispenses with accurate distance information by using pa...
Abstract. An elimination problem in semidefinite programming is solved by means of tensor algebra. It concerns families of matrix cube problems whose constraints are the minimum and maximum eigenvalue function on an affine space of symmetric matrices. An LMI representation is given for the convex set of all feasible instances, and its boundary is studied from the perspective of algebraic geomet...
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