نتایج جستجو برای: thermoelastic dislocation

تعداد نتایج: 30528  

2015
Mikhail M. Shvartsman Stuart S. Antman MIKHAIL M. SHVARTSMAN STUART S. ANTMAN

We determine the detailed qualitative behavior of radially symmetric equilibrium states with two or more phases for general classes of nonlinear thermoelastic materials. We treat the cases of structured and non-structured interface. Methods are based on a combination of geometric constructions with phase-plane analyses of the governing equations. A special feature of the solutions is that they ...

2001
H. Tsukamoto J. M. Woodall

The carrier profile for InAs films grown on GaP is modeled as a first-order approximation which assumes that 90° edge dislocation intersections and the threading dislocation intersections act as shallow donors. Due to dislocation annihilation during growth, the threading dislocation intersection density decreases as the inverse of the distance x from the InAs/GaP interface, D(x)5D0x0 /(x0 1x), ...

2016
Jinlu Yu Yongning Xia Bin Zhao Dong Zhu Tiecheng Yu

One of the most frequently overlooked injuries is neglected radial head dislocation, which is currently known as Monteggia fracture dislocation. Chronic radial head dislocation can result in elbow stiffness, deformity, persistent pain, and instability. In this report, we described an unusual case involving chronic radial head dislocation that was neglected for 15 years and secondary ulnocarpal ...

2016
G. A. FRANCFORT

Introduction. The derivation of the mechanical behavior of a flat plate as the limit behavior of a three-dimensional flat solid whose thickness tends to zero is a well-established theory since the works of Goldenveizer [G] or Ciarlet and Destuynder [CD1], Due attention has been paid to the static response of such plates for various linear or nonlinear mechanical behaviors (Ciarlet-Destuynder [C...

Journal: :Annals of emergency medicine 2013
Saeed Abbasi Hooshyar Molaie Peyman Hafezimoghadam Mohammad Amin Zare Mohsen Abbasi Mahdi Rezai Davood Farsi

STUDY OBJECTIVE Emergency physicians frequently encounter shoulder dislocation in their practice. The objective of this study is to assess the diagnostic accuracy of ultrasonography in detecting shoulder dislocation and confirming proper reduction in patients presenting to the emergency department (ED) with possible shoulder dislocation. We hypothesize that ultrasonography could be a reliable a...

2015
Jaafar A. El-Awady

Size-affected dislocation-mediated plasticity is important in a wide range of materials and technologies. Here we develop a generalized size-dependent dislocation-based model that predicts strength as a function of crystal/grain size and the dislocation density. Three-dimensional (3D) discrete dislocation dynamics (DDD) simulations reveal the existence of a well-defined relationship between str...

2008
I-Kuan Lin Yanhang Zhang Xin Zhang

Uncooled microcantilever-based infrared (IR) detectors have recently gained interest due to their low noise equivalent temperature difference (NETD), while concurrently maintaining low costs. These properties have made them available for a wider range of applications. However, the curvature induced by residual strain mismatch severely compromises the device’s performance. Therefore, to meet per...

2016
Xiaohua Niu Tao Luo Jianfeng Lu Yang Xiang

We develop a mesoscopic dislocation dynamics model for vacancy-assisted dislocation climb by upscalings from a stochastic model on the atomistic scale. Our models incorporate microscopic mechanisms of (i) bulk diffusion of vacancies, (ii) vacancy exchange dynamics between bulk and dislocation core, (iii) vacancy pipe diffusion along the dislocation core, and (iv) vacancy attachment-detachment k...

  Background: Trans-scaphoid perilunate fracture-dislocation and perilunate dislocations are among uncommon injuries, most commonly seen in young patients due to high energy trauma. The treatment can be achieved either surgically by open reduc tion and internal fixation or closed reduction and casting.   Methods: To compare surgical versus non-operative results of treatment of trans-scaphoid pe...

Journal: :Revista espanola de cirugia ortopedica y traumatologia 2015
I J Jiménez-Jiménez J R Caballero-Martel J Ojeda-Castellano

Radiocarpal dislocation is an extremely uncommon injury in Traumatology, and is usually produced by high energy trauma. There are two types of dislocation, type I: pure radiocarpal dislocation and type II: fracture-dislocation. The gold standard treatment according to the literature is surgical treatment fixing the fractures and repairing the injured ligaments. We report a clinical case of radi...

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