Results 61 to 70 of about 333,895 (294)
A Frequency-Tunable SRR-Adopted Two-Pole Waveguide Filter Operating below the Cutoff Frequency
International Journal of Antennas and Propagation, 2017 A frequency-tunable filter operating below the cutoff frequency of a metallic hollow waveguide is proposed, which has two-pole bandpass characteristics and incorporates a split-ring resonator (SRR). The tuning procedure is achieved by inserting two metal
Wook-Ki Park +3 more
doaj +1 more source
Arthritis &Rheumatology, EarlyView.Objective To assess the efficacy and safety of deucravacitinib, an oral, selective tyrosine kinase 2 inhibitor, in patients with psoriatic arthritis (PsA) who were naive to biologic disease‐modifying antirheumatic drugs or received tumor necrosis factor inhibitors. Methods In the 52‐week, double‐blind, placebo‐controlled, phase 3 Program for Evaluation
Philip J. Mease +20 more
wiley +1 more source
A Wideband Beam Forming Antenna Array for 802.11ac and 4.9 GHz [PDF]
, 2019 In this work, a wideband high gain 1×4 beamforming (BF) antenna array has been proposed for 5.17 - 5.85 GHz ISM band and extended coverage for 4.92 - 4.98 GHz licensed band. The key antenna performances of 13.6 dBi realized gain, 24.4° Beamwidth, 12.9 dB Sidelobe at 0° beam and ±40° beam steering capability has been achieved.
Tan, Moh Chuan +3 more
openaire
A 4.9-dB NF 53.5-to 62-GHz MICROMACHINED CMOS WIDEBAND LNA WITH SMALL GROUP-DELAY-VARIATION
, 2020 [[abstract]]A 53.5- to 62-GHz wideband low-noise amplifier (LNA) with excellent phase linearity property using standard 0.13 mu m CMOS technology is reported. To achieve sufficient gain, the LNA is composed of six cascade common-source stages.
Chen, CC, 陳志成
core +1 more source
Biotechnology and Applied Biochemistry, EarlyView.ABSTRACT Lignocellulosic residues are non‐cost, non‐edible, renewable feedstocks that can be used in polyhydroxybutyrate (PHB) production. PHB is a bioplastic synthetized by microorganisms, formed intracellularly under stressful growth conditions; however, its production costs are high, representing the major drawback for fossil‐based plastics ...
Clara Matte Borges Machado +8 more
wiley +1 more source
Supercontinuum generation with GHz repetition rate femtosecond-pulse fiber-amplified VECSELs [PDF]
, 2013 We report supercontinuum generation using a mode-locked VECSEL emitting 400-fs pulses at a 3-GHz repetition rate, amplified with a cascaded ytterbium-doped fiber amplifier system up to 40 W of average power.
Tropper, Anne C. +10 more
core +1 more source
Biofuels, Bioproducts and Biorefining, EarlyView.Abstract The search for alternative and sustainable energy sources becomes urgent as energy demand increases and fossil fuels become less available, especially in water‐scarce regions such as the Brazilian semi‐arid region, where current projections of global warming and the expansion of arid and semi‐arid zones point to a future of desertification ...
Wallysson K. P. Barros +10 more
wiley +1 more source
A mini-survey of ultracool dwarfs at 4.9 ghz
, 2018 Context. A selection of ultracool dwarfs are known to be radio active, with both gyrosynchrotron emission and the electron cyclotron maser instability being given as likely emission mechanisms. Aims.
Doyle, J. G. +4 more
core
Biofuels, Bioproducts and Biorefining, EarlyView.Abstract Energy security and sustainability drive the exploration of innovative conversion strategies for abundant biomass waste into energy‐dense products (solid, liquid, and gaseous biofuels). This study demonstrated the catalytic potential of a coal fly ash (CFA)‐derived ZSM‐5 zeolite in enhancing biomass pyrolysis, focusing on lignocellulosic ...
Januario Da Costa Hossi, Kevin Harding
wiley +1 more source
Scientific ReportsWith the rapid development of 5G networks, the influence of the radiofrequency field (RF) generated from 5G communication equipment on human health is drawing increasing attention in public.
Xing Wang +10 more
doaj +1 more source