Design of Wideband High-Gain Patch Antenna Array for High-Temperature Applications
A low-profile, wideband, and high-gain antenna array, based on a novel double-H-shaped slot microstrip patch radiating element and robust against high temperature variations, is proposed in this work.
Ruibo Li+7 more
doaj +1 more source
Progress and Challenges in Electromechanical Coupling of Radio Telescopes
Radio astronomy is a discipline of dynamics and wonders. The vast universe has many secrets to unravel. As one of the important facilities in this discipline, radio telescopes play a key role in collecting astronomical data and unraveling mysteries. With
Yuefei Yan+9 more
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Miniaturised element frequency selective surface design for high power microwave applications
A third‐order miniaturised element frequency selective surface (MEFSS) for high‐power microwave (HPM) systems is proposed. The MEFSS design is characterised by the excellent capability to handle high‐power waves and the stable frequency response at large
Kai Wu+4 more
doaj +1 more source
Effectiveness of Two Techniques in Removal of Calcium Hydroxide Medicament from Root Canals: An in-vitro Assessment [PDF]
Introduction: Calcium Hydroxide {Ca(OH)2 } is widely used as intracanal medicament. However, complete removal of Ca(OH)2 is very difficult from canal walls resulting in its residues on canal wall which interfere with bonding of sealers and reduce success
Ravi Gupta+5 more
doaj +1 more source
Tribological and dry drilling performance of WS2/Cr-AlCrN coatings
Dry drilling gives a higher request to the anti-friction property of cutting tools. However, most tool coatings commonly have less lubricant effect. In present paper, WS2/Cr layer was deposited on AlCrN layer by a radio frequency magnetron sputtering ...
Shipeng LI+4 more
doaj +1 more source
Development of a Safe Syringe Disposal System Moving towards Automated Syringe Data Collection [PDF]
ObjectivesAn automatic needle destroyer (ANDY) was developed to prevent needlestick injuries, and usability tests were conducted in several hospitals.
Youhwa Kim+3 more
doaj +1 more source
Current-injected photovoltaic array for concentrated space solar power station
In this article, the power generation of a concentrated space solar power station (SSPS) is enhanced by current-injected total-cross-tied (TCT-CI) photovoltaic (PV) array.
Xintong Li+6 more
doaj +1 more source
Sustainability and resilience are major challenges for the building sector in order to meet energy efficiency and low carbon emissions goals. Based on the defined and quantified targets of the EU climate change policy, Renewable Energy Systems (RESs) are
Effrosyni Giama+3 more
doaj +1 more source
Design and Optimization of a Micron-Scale Magnetoelectric Antenna Based on Acoustic Excitation
The development of antenna miniaturization technology is limited by the principle of electromagnetic radiation. In this paper, the structure size of the antenna is reduced by nearly two orders of magnitude by using Acoustic excitation instead of ...
Na Li+4 more
doaj +1 more source
SAFER DESIGN OF ANAESTHETIC EQUIPMENT
Peter Thompson
openaire +4 more sources