Results 31 to 40 of about 27,598 (296)

Relationships between posterior shoulder muscle stiffness and rotation in patients with stiff shoulder

open access: yesJournal of Rehabilitation Medicine, 2010
The aim of this study was to investigate differences in muscle stiffness between subjects with stiff shoulders and controls, and to determine the correlation between posterior shoulder muscle stiffness and range of motion of rotation.Prospective, cross-sectional study.Twenty subjects with stiff shoulder and 20 healthy subjects.Range of motion of ...
Hung, Cheng-Ju   +3 more
openaire   +4 more sources

Spectral Assessment of the Effects of Base Flexibility on Seismic Demands of a Structure

open access: yesAdvances in Civil Engineering, 2016
Base flexibility of structures changes and can increase the demands on structural elements during earthquake excitation. Such flexibility may come from the base connection, foundation, and soil under the foundation. This research evaluates the effects of
J. Borzouie   +4 more
doaj   +1 more source

A design method for an unbalance vibration compensator of five-axes active magnetic bearing systems

open access: yesNihon Kikai Gakkai ronbunshu, 2015
In one of the problems of the rotary machine, unbalance vibration synchronized with rotational frequency is well known. This vibration is caused by the unbalance of the mass of the rotor, the electromagnetic force of the active magnetic bearing (AMB ...
Taiki NAKAMURA, Shinji WAKUI
doaj   +1 more source

An Algebraic Approach for Identification of Rotordynamic Parameters in Bearings with Linearized Force Coefficients

open access: yesMathematics, 2021
In this work, a novel methodology for the identification of stiffness and damping rotordynamic coefficients in a rotor-bearing system is proposed. The mathematical model for the identification process is based on the algebraic identification technique ...
José Gabriel Mendoza-Larios   +6 more
doaj   +1 more source

Seismic Performance Analysis of Middle Column Joints with T-Stub Steel Connections Considering Cumulative Damage

open access: yesBuildings
In this paper, the quasi-static reciprocating loading test was carried out for the T-stub steel middle column joints with blind-bolt connections. As the thickness of the T-stub steel increased, the damage failure modes were different.
Huanhuan Liu   +4 more
doaj   +1 more source

Stiffness and arthroscopic rotator cuff repair: a literature review

open access: yesAnnals of Joint, 2023
Tendon retear is the most common complication following rotator cuff repair surgery. Understanding the factors that are associated with greater risks of retear is important so surgeons can provide accurate prognostic information to patients. Advanced age and larger tear size have been shown to be associated with greater risk of retear at 6 months using
Guo, Allen A.   +2 more
openaire   +2 more sources

Rotation-joint stiffness modeling for industrial robots considering contacts

open access: yesAdvances in Mechanical Engineering, 2018
Joint flexibility has a major impact on the motion accuracy of a robotic end effector, particularly at high speeds. This work proposes a technique of precisely modeling the torsional stiffness of the rotational joints for the industrial robots.
Zhifeng Liu   +4 more
doaj   +1 more source

Parameter Effects on Dynamic Characteristics Analysis of Multi-Layer Foil Thrust Bearing

open access: yesLubricants
The paper studies the dynamic characteristics of a multi-layer foil thrust bearing (MLFTB). A modified efficient dynamic characteristic model is established, and the revised Reynolds equation coupled with the thick plate element and the boundary slip ...
Yulong Jiang   +3 more
doaj   +1 more source

The rotational stiffness of cross-laminated timber half-lap joints

open access: yes, 2018
Half-lap joints in cross-laminated timber are often conservatively assumed to have no rotational stiffness, preventing applications where the cross-joint stiffness could be utilised.
McRobie, A   +5 more
core   +1 more source

Biophysical approaches for studying viral entry

open access: yesFEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

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