Results 61 to 70 of about 16,196 (251)
Electronics Letters, 2016 The impedance bandwidth (BW) improvement property of a self‐resonant folded spherical helix electric dipole and a spherical split ring (SSR) magnetic dipole is compared when a negative reactance element is loaded on the parasitic resonator of the antennas. They have the same electrical size of ka
I.‐J. Yoon +4 more
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Advanced Engineering Materials, EarlyView.In situ synchrotron high‐energy X‐ray diffraction reveals the real‐time high‐temperature phase evolution of a ternary V‐9Si‐6.5B alloy. The study uncovers a kinetically delayed V5SiB2 → V8SiB4 transformation governed by massive structural and chemical barriers.
Zahra Sabeti +4 more
wiley +1 more source
Electrical Characterization of 65 W Cubic Sonoreactor with Horizontally Stacked Transducers
Archives of Acoustics, 2017 A sonoreactor was assembled with stacked lead zirconate titanate transducers. These transducers were attached on one side of a 10×10×10 cm$^3$ chamber and driven by an integrated circuit power amplifier. The impedance of the reactor was analyzed in order
Pansak KERDTHONGMEE +3 more
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Advanced Engineering Materials, EarlyView.This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari +4 more
wiley +1 more source
Design of L-Shaped Open-Slot Antenna Used in UAV Airborne Communication System
International Journal of Antennas and Propagation, 2018 According to the communication demands of communication system used in the UAV (Unmanned Aerial Vehicle) communication system, a ladder-shaped open-slotted antenna design is presented.
Zhang Wei, Yang Junfeng
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Optimization of Piezoelectric Flexible Ultrasonic Sensors Based on Backing Layer Matching [PDF]
Zhengzhou Daxue xuebao. Gongxue banEven with the advantages of small size, light weight, and easy matrixing, flexible ultrasonic sensors based on polyvinylidene fluoride (PVDF) piezoelectric film are susceptible to back clutter and impedance mismatching, resulting in a complex frequency
YU Yongjie +3 more
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Multilayer Self‐Limiting Electrospray Deposition via Stepped Voltage Bias
Advanced Engineering Materials, EarlyView.Self‐limiting electrospray deposition (SLED) uses a high voltage to generate and deposit a charged payload on a target surface. The coating retains its charge, repelling newly arriving material. SLED thickness can be decreased by applying a secondary bias to the target.
Madhuri Deb +3 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Controlling the Field Assisted Sintering Technology (FAST) parameters, dwell temperature and cooling rate, significantly influences the microstructural evolution in titanium aluminide GE4822. Significant γ‐lamellar colonies develop only upon cooling through the α‐transus.
Jack Krohn, James Pepper, Martin Jackson
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Advanced Engineering Materials, EarlyView.Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt +5 more
wiley +1 more source
MicromachinesDual-frequency ultrasounds have demonstrated significant potential in augmenting thermal ablation efficiency for tumor treatment. Ensuring proper impedance matching between the dual-frequency transducer and the power amplifier system is imperative for ...
Wenchang Huang +6 more
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