Results 71 to 80 of about 95,310 (311)

Design and realization of microstrip filters with new defected ground structure (DGS)

open access: yesEngineering Science and Technology, an International Journal, 2017
In this paper, various microstrip filters, such as bandpass (narrow/wideband) filters, dual band bandpass filter and lowpass filters, are designed with new metal strips loaded defected ground structure (DGS).
Arjun Kumar, M.V. Kartikeyan
doaj   +1 more source

dg-Methods for Microlocalization

open access: yesPublications of the Research Institute for Mathematical Sciences, 2011
For a complex manifold X the ring of microdifferential operators \mathcal{E}_X acts on the microlocalization \mu hom(F ...
openaire   +4 more sources

Risk of Retinopathy Associated with Long‐Term Use of Hydroxychloroquine in Patients with Rheumatic Diseases: A Systematic Review and Meta‐Analysis

open access: yesArthritis Care &Research, Accepted Article.
Objective We aimed to estimate the prevalence and cumulative incidence of hydroxychloroquine retinopathy (HCQ‐R) and its risk factors among long‐term HCQ users with rheumatic diseases through a systematic review and meta‐analysis of observational studies that used spectral‐domain OCT (SD‐OCT) for screening. Methods A systematic search of PubMed, Scopus,
Narsis Daftarian   +4 more
wiley   +1 more source

Association between direct government subsidies and service scope of primary care facilities: a cross-sectional study in China

open access: yesInternational Journal for Equity in Health, 2020
Background Comprehensive primary care practices, through preconception, preventive, curative, and rehabilitative care, have been a global priority in the promotion of health. However, the scope of primary care services has still been in decline in China.
Zhong Li   +3 more
doaj   +1 more source

Developing and Evaluating a Laboratory‐Based Frailty Index (FI‐Lab) for the Prediction of Long‐Term Health Outcomes in Systemic Lupus Erythematosus

open access: yesArthritis Care &Research, Accepted Article.
Objective We aimed to construct and evaluate the first laboratory‐based frailty index (FI‐Lab) for predicting adverse outcomes in systemic lupus erythematosus (SLE) and to compare its predictive ability to that of an existing clinical frailty index (FI).
Grace Burns   +2 more
wiley   +1 more source

A Serial Feeding Network with Defected Ground Structure

open access: yesLeida xuebao, 2014
A novel serial feeding network with Defected Ground Structure (DGS) is proposed in this paper. The stripline feed network uses multilayer board laminated structure and DGS on the surface.
Xi Song-tao, Wu Xiao-po
doaj   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

open access: yesAdvanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin   +4 more
wiley   +1 more source

Defected Ground Structure: Fundamentals, Analysis, and Applications in Modern Wireless Trends

open access: yesInternational Journal of Antennas and Propagation, 2017
Slots or defects integrated on the ground plane of microwave planar circuits are referred to as Defected Ground Structure. DGS is adopted as an emerging technique for improving the various parameters of microwave circuits, that is, narrow bandwidth ...
Mukesh Kumar Khandelwal   +2 more
doaj   +1 more source

Dirac neutrinos and anomaly-free discrete gauge symmetries

open access: yes, 2014
Relying on Dirac neutrinos allows an infinity of anomaly-free discrete gauge symmetries to be imposed on the Supersymmetric Standard Model, some of which are GUT-compatible.Comment: 24 pages, minor changes, existence of flipped discrete gauge ...
Christoph Luhn   +3 more
core   +1 more source

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