Results 81 to 90 of about 307,462 (308)
Dynamic analysis for planar multibody mechanical systems with lubricated joints [PDF]
, 2004 The dynamic analysis of planar multibody systems with revolute clearance joints, including dry contact and lubrication effects is presented here. The clearances are always present in the kinematic joints.
Ambrósio, Jorge +2 more
core +1 more source
3D Revolute Joint with Clearance in Multibody Systems [PDF]
, 2017 The aim of this paper is to understand the influence of radial and axial clearance in the revolute joints on the overall performance of a circuit breaker. A circuit breaker mechanism is made of seven links, seven revolute joints with clearance in both radial and axial direction, four unilateral contacts with friction, and it has forty-two degrees of ...
Akhadkar, Narendra +2 more
openaire +1 more source
DDX3X induces mesenchymal transition of endothelial cells by disrupting BMPR2 signaling
FEBS Open Bio, EarlyView.Elevated DDX3X expression led to downregulation of BMPR2, a key regulator of endothelial homeostasis and function. Our co‐immunoprecipitation assays further demonstrated a molecular interaction between DDX3X and BMPR2. Notably, DDX3X promoted lysosomal degradation of BMPR2, thereby impairing its downstream signaling and facilitating endothelial‐to ...
Yu Zhang +7 more
wiley +1 more source
Dynamics Simulation and Experiment of the Slider-crank Mechanism with Dry Friction Clearance Joint
Jixie chuandong, 2017 Based on dynamics simulation software,the dynamics analysis of the slider-crank mechanism with clearance joint is carried out and the effect of joint with different clearance size under dry contact and non-friction conditions on dynamic response of ...
Han Yuncheng, Xu Lixin, Huang Xiaoqiu
doaj
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background Apolipoprotein ε4 (APOE ε4) is a potent genetic risk factor for Alzheimer's disease (AD). However, its role in cerebral small vessel disease (CSVD) remains unclear. Given the clinical and pathological similarities between CSVD and AD, this study aimed to investigate the associations of APOE ε4 gene dosage with cognitive function and
Tingru Jin +6 more
wiley +1 more source
Jixie chuandong, 2001 This paper takes account of the boundary condition of elements of a joint with clearance when contact occur, by using the nonlinear spring damper formulation to model the resulting reaction force between the elements of clearance joint.
王国庆, 刘宏昭
doaj
, 2011 Effective lubrication performance of metal-on-metal hip implants only requires optimum conformity within the main loaded area, while it is advantageous to increase the clearance in the equatorial region.
Anissian H.L. +20 more
core +1 more source
Acoustic Measures Capture Speech Dysfunction in Spinocerebellar Ataxia
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Spinocerebellar ataxias (SCA) are hereditary cerebellar degenerative disorders with a common feature of dysarthria, involving impaired phonatory and articulatory control of speech, thereby affecting social communication. In this study, we investigated whether acoustic measures could objectively measure speech dysfunction and identify
Zena Fadel +5 more
wiley +1 more source
Shear joint capability versus bolt clearance [PDF]
The results of a conservative analysis approach into the determination of shear joint strength capability for typical space-flight hardware as a function of the bolt-hole clearance specified in the design are presented. These joints are comprised of high-
Lee, H. M.
core +1 more source
Dynamic Analysis of the Mechanism with Joint Clearance [PDF]
, 2015 随着工业水平的不断发展，含间隙机构的动力学及其控制的研究逐渐成为了一个热门课题。由于间隙的存在对机械机构的动力学特性造成了一定的影响，所以分析运动副间隙的影响对于机械机构设计和优化的意义就显得十分重大。本文中主要是以具有代表性的含间隙曲柄滑块机构和机械手臂机构为例，来分析间隙以及柔性因素给机械机构动力学特性带来的一些影响。 建立了机械系统的动力学方程，为含间隙机构动力学分析研究提供了理论基础；分析了基于弹簧阻尼模型的Impact接触碰撞函数，为研究轴与轴套间的接触碰撞过程提供了理论依据 ...
牟佳冬
core