Results 141 to 150 of about 58,652 (311)
Arthritis Care &Research, EarlyView.Objective To investigate the association between rheumatoid arthritis (RA) and coronary artery calcium (CAC) prevalence, incidence, and progression over four years in adults without prior cardiovascular disease. Methods A case‐cohort study within the Brazilian Longitudinal Study of Adult Health (ELSA‐Brasil) included 585 participants (86 patients with ...
Patrícia Fonseca Estrada +7 more
wiley +1 more source
Integrated Metric-Based Frequency Optimization for eVTOL PMSM Propulsion Systems
IEEE AccessRapid advancement of electric vertical take-off and landing (eVTOL) aircraft has increased the demand for electric propulsion systems that deliver high efficiency and high reliability. Among the available technologies, permanent magnet synchronous motors
Dong-Gyu Seong +2 more
doaj +1 more source
The Formation Mechanism of the Ripple Dislocation and Application of the Ripple Dislocation-Free Films with Dual-Scale Surface Roughness [PDF]
, 2012 計畫編號：NSC100-2221-E032-020 研究期間：20110801~20120731 研究經費：515,000本研究將聚二甲基矽氧烷薄膜給予拉伸及固定應變後，於薄膜表面濺鍍沈積一層 金鍍層，經應變回復後，於薄膜表面會形成漣漪結構及漣漪差排。由於目前較少文獻 探討漣漪差排的形成機制及孤立漣漪差排的滑移行為，其中孤立漣漪差排的定義，係 100 個漣漪結構只有單一顆漣漪差排，選定100 個漣漪結構的理由係此孤立漣漪差排的 滑移不受其他漣漪差排交互作用的影響。本研究第一年主要探討:(1)晶格漣漪差排、
林清彬
core
International Journal of Adaptive Control and Signal Processing, EarlyView.This article proposes a convergent adaptive observer for a damped wave PDE and an infinite‐dimensional ODE coupled in cascade using sampled‐in‐space ODE state measurements. The proposed observer estimates the distributed states of the PDE and ODE along with unknown PDE parameters and spatial input.
Zehor Belkhatir +2 more
wiley +1 more source
Earth and Planetary PhysicsIn this study, we investigate the source and dynamics of a mesoscale gravity wave (MGW) observed over northern China. On January 12, 2010, an OH airglow imager at the Xinglong station (40.2°N, 117.4°E) detected an MGW propagating from southwest to ...
QinZeng Li +5 more
doaj +1 more source
Towards a regional assessment of self supply potential in SNNPR, Ethiopia [PDF]
, 2012 This study uses a mapping approach to assess whether readily available spatial datasets and expert knowledge can be used to assess regional potential for self supply in Southern Nations, Nationalities and People’s Region (SNNPR), Ethiopia.
Macdonald, David M.J.
core
Advanced Engineering Materials, Volume 27, Issue 6, March 2025.ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source
A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection
Advanced Engineering Materials, EarlyView.A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan +9 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.A flexure‐based variable stiffness structure is developed by integrating phase‐change modulation and adhesive interfacial locking of gallium. The design enables a wide stiffness variability, transitioning from soft, flexible behavior to rigid, load‐supporting performance.
Sungjin Kim +2 more
wiley +1 more source