Results 111 to 120 of about 922,426 (306)

Formal and Informal Social Care in People With Rheumatic and Musculoskeletal Diseases: A Cross‐Sectional Multicenter Survey

open access: yesArthritis Care &Research, EarlyView.
Objective Rheumatic and musculoskeletal diseases (RMDs) are leading causes of physical disability, necessitating support with activities of daily living. This study describes social care received by patients with RMDs in two disparate regions of England: Salford (urban) and Norfolk (rural).
Mehreen Somro   +6 more
wiley   +1 more source

Influence of Embankments with Parapets on the Cross-Wind Turbulence Intensity at the Contact Wire of Railway Overheads

open access: yes, 2010
Winds as an environmental factor can cause significant difficulties for the railway system operation. The railway overhead has been particularly vulnerable to cross-winds related problems, such as development of undamped oscillations due to galloping ...
Meseguer Ruiz, José   +5 more
core   +1 more source

Method of calculation and test of dynamic tooth root strain for high-contact-ratio spur gears

open access: yesJixie chuandong
ObjectiveAiming at the difference of load sharing and dynamic characteristics between high-contact-ratio spur gears and conventional spur gears, a method for calculating the dynamic tooth root strain was proposed considering the dynamic characteristics ...
YU Pengfei   +4 more
doaj  

Multi-Condition Wear Simulation and Parametric Analysis of VL-Type Seals for Aviation Hydraulic Actuators

open access: yesLubricants
To elucidate the wear evolution and failure mechanisms of VL-type composite seals in aviation hydraulic actuators under multiple operating conditions, a two-dimensional plane-strain finite element model was developed for a VL seal consisting of a PTFE L ...
Zhihui Cai   +3 more
doaj   +1 more source

Clinical Significance of Therapeutic Drug Level Monitoring for Mycophenolate in Patients With Extrarenal Systemic Lupus Erythematosus—A Systematic Review and Meta‐Analysis

open access: yesArthritis Care &Research, EarlyView.
Objective Clinical response to mycophenolic acid (MPA) is highly heterogeneous; thus, therapeutic drug level monitoring (TDM) may help improve treatment efficacy. This systematic review and meta‐analysis examined therapeutic ranges for MPA levels associated with better outcomes and safety in patients with systemic lupus erythematosus (SLE ...
Zahraa Qamhieh   +5 more
wiley   +1 more source

Triangular Index Ratio as an Alternative Method to the Alpha Angle for Defining the Presence of Cam Morphology: A Prospective Cohort Study

open access: yesArthritis Care &Research, EarlyView.
Objective Cam morphology, which is a significant risk factor for hip osteoarthritis, is commonly quantified by the alpha angle (AA). This study aims to explore the potential of the triangular index ratio (TIR) to quantify cam morphology on anteroposterior radiographs by assessing the association between TIR‐defined cam morphology and the development of
Jinchi Tang   +7 more
wiley   +1 more source

Optimization of transmission ratios in a three-stage spur-helical gearbox using an analytical sizing algorithm and differential evolution

open access: yesResults in Engineering
Designing three-stage gearboxes that combine a high overall transmission ratio with a compact envelope remains a notable challenge for both manufacturers and design engineers.
Duy Huu Huynh, Loc Huu Nguyen
doaj   +1 more source

Cracking the Code: Which Ocular Symptoms Predict Dry Eye Signs? Insights From a Large International Sicca Registry

open access: yesArthritis Care &Research, EarlyView.
Objective The study aimed to identify symptom‐based predictors of dry eye disease (DED) signs in the Sjögren's International Collaborative Clinical Alliance (SICCA) cohort. Methods We performed a retrospective analysis examining 16 ocular symptoms (most graded 0–4) and artificial tear (AT) use (graded 0–3) as predictors of DED signs (abnormal ocular ...
Pragnya R. Donthineni   +7 more
wiley   +1 more source

Dissipation of vibration energy using viscoelastic granular materials [PDF]

open access: yes, 2013
This work addresses the way in which a viscoelastic granular medium dissipates vibration energy over broad ranges of frequency, amplitude and direction of excitation.
Darabi, Babak
core  

Geometry Design and Contact Ratio Analysis for Circular Arc Parallel-Axis Helical Gears

open access: yes, 2016
Based on space curve meshing theory, in this paper, we present a novel geometric design of a circular arc helical gear mechanism for parallel transmission with convex-concave circular arc profiles.
Z. Chen, Q. Zhao, B. Lei
core   +1 more source

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