Results 91 to 100 of about 94,991 (291)

Accuracy Analysis of a Multi-Closed-Loop Truss Antenna with Clearance

open access: yesAerospace
Surface accuracy is one of the most crucial indicators for evaluating the performance of a large deployable antenna. It depends on the accuracy of the truss structure of the truss antenna.
Di Wu   +4 more
doaj   +1 more source

Effect of Brazing Clearance on Microstructure and Strength of Welded Joint of 316L Stainless Steel

open access: yes, 2011
To study the effect of brazing clearance and temperature on strength and microstructure, vacuum brazing of 316L stainless steel was carried out with BNi-2 nickel-based solder. Choose the different brazing clearance to be processed at 1070°C, analyzed the
Ming Wang, Zhuo Jun Chen, Long Long Feng
core   +1 more source

Differential Item Functioning on the Patient Health Questionnaire 8 by Disease Subtype, Language, Sex, and Age Among People With Systemic Sclerosis: A Scleroderma Patient‐Centered Intervention Network Cohort Study

open access: yesArthritis Care &Research, EarlyView.
Objective Somatic items used in depression assessments can potentially overlap with symptoms related to physical illness, including systemic sclerosis (SSc). No studies have looked at whether somatic depression items may be influenced by diffuse versus limited SSc disease subtypes, which are associated with varying degrees of symptom presentation.
Sophie Hu   +110 more
wiley   +1 more source

Modeling and Analysis of the Flap Actuation System Considering the Nonlinear Factors of EMA, Joint Clearance and Flexibility

open access: yesAerospace
The performance of the flap actuation system directly affects the control effect and the flight quality of an aircraft. The electromechanical actuator (EMA) and the linkage mechanism are important components of the system.
Qi Wan   +5 more
doaj   +1 more source

Does Long‐Term Lower Extremity Strength Training in Adults With Knee Osteoarthritis and Varus Alignment Reduce Knee Joint Loading During Gait?

open access: yesArthritis Care &Research, EarlyView.
Objective We examined whether 18 months of strength training in individuals with knee varus alignment and medial tibiofemoral osteoarthritis (OA) reduced knee joint loads during walking compared to an attention control group. Methods This study was a secondary analysis of a randomized clinical trial that compared the effects of strength training to a ...
Stephen P. Messier   +12 more
wiley   +1 more source

High Health Care Utilization Preceding Diagnosis With Juvenile Idiopathic Arthritis

open access: yesArthritis Care &Research, EarlyView.
Objective Although early diagnosis improves long‐term outcomes, patients with juvenile idiopathic arthritis (JIA) often experience prolonged, circuitous paths to diagnosis. To inform diagnostic improvement, we sought to characterize health care utilization in the year preceding diagnosis. Methods We identified 10,021 patients with an incident diagnosis
Anna Costello   +5 more
wiley   +1 more source

Dynamic analysis of crank slider mechanism considering 3D translational joint clearance based on variable contact area

open access: yesMechanics & Industry
This study investigates the influence of joint clearance on the motion accuracy of the slider in the 3D translational pair of the crank slider mechanism.
Wang Yuan   +5 more
doaj   +1 more source

Cumulative Social Disadvantage and Disease Activity in Juvenile Idiopathic Arthritis: A Childhood Arthritis and Rheumatology Research Alliance Registry Study

open access: yesArthritis Care &Research, EarlyView.
Objective Social determinants of health (SDOH) contribute to juvenile idiopathic arthritis (JIA) disparities, but most studies have assessed SDOH independently rather than cumulatively across individual, family, and neighborhood levels. Using a socioecological framework, we investigated the relationship among cumulative social disadvantage ...
William Daniel Soulsby   +448 more
wiley   +1 more source

Dynamic analysis of planar multibody system with a lubricated revolute clearance joint using an improved transition force model

open access: yesAdvances in Mechanical Engineering, 2017
The article introduces a general solution for dynamic analysis of a planar multibody system with revolute lubricated clearance joint. An improved transition force model is established, which includes dry contact force and hydrodynamic forces, accounts ...
Tao Zhang   +3 more
doaj   +1 more source

A DOE and kriging-based model for studying on the dynamics of multibody mechanical systems with revolute joint clearance : draft

open access: yes, 2013
Over the last two decades, extensive work has been done to study the dynamic effect of the joint clearances in multibody mechanical systems. In contrast, little work has been devoted to optimize the performance of these systems.
Flores, Paulo   +8 more
core   +1 more source

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