نتایج جستجو برای: plastic section
تعداد نتایج: 211377 فیلتر نتایج به سال:
Performing music at a professional level is probably the most demanding of human accomplishments. Making music requires the integration of multimodal sensory and motor information and precise monitoring of the performance via auditory feedback. In the context of Western classical music, musicians have to reproduce highly controlled movements almost perfectly with a high reliability. These speci...
This report describes the design and development of a plastic scintillating high energy neutron detector to be implemented as a micro-class satellite payload. The primary function of this detector is to identify and characterize the energy distribution of solar accelerated neutrons resulting from massive solar events. Accelerated neutrons will be identified by a pulse counting system using the ...
Did I really have to go through 3 years of general surgery training and 2 years of plastic surgery training in residency programs approved by the Accreditation Council for Graduate Medical Education (ACGME) to become a plastic surgeon? After recently graduating from the Grand Rapids Plastic Surgery Residency program and an aesthetic plastic surgery fellowship with Dr. Richard Ellenbogen in Los ...
This paper reviews a cyclic scheduling model of repetitive manufacturing environments consisting of exible machines and multi-stage jobs. We explicitly model two system performance measures, throughput and ow time, while incorporating variability arising from uncertainty in operation processing times. We present an iterative approximation scheme to estimate the two moment behavior of our perfor...
OBJECTIVE The aim of this work is to analyse the origin of phenotypic plastic changes into a biologic structure, in this case the hip. As a hypothesis of the work, the possibility that changes could be explained following the Lamarckian paradigm, opposed to the Darwinian paradigm, is shown. The section material and methods of this work have been published in part I. Studies in plants and fish h...
Gradient nano-grained (GNG) metals are a unique class of materials with spatial gradients in grain size, typically from the surface to the bulk. Here the gradient mechanical behavior inGNG copper is studied by a crystal plasticity finite elementmodel that accounts for grainsize-dependent yield strengths. The associated finite element simulations reveal both the gradient stress and gradient plas...
Steel beam cross sections are normally classified according to the effect of local buckling on the moment capacity of the section. This is achieved by defining slenderness limits for the flange and the web. This paper describes a series of bending tests on cold-formed RHS to examine these limits. The resulting experimental relationship between web slenderness and plastic rotation capacity is gi...
Despite the large and growing literature on microplastics in the ocean, little information exists on microplastics in freshwater systems. This study is the first to evaluate the abundance, distribution, and composition of pelagic microplastic pollution in a large, remote, mountain lake. We quantified pelagic microplastics and shoreline anthropogenic debris in Lake Hovsgol, Mongolia. With an ave...
Localization of plastic strain induced by softening can be objectively described by a regularized plasticity model that postulates a dependence of the current yield stress on a nonlocal softening variable defined by a differential (gradient) expression. This paper presents analytical solutions of the one-dimensional localization problem under certain special nonuniform stress distributions. The...
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