Results 91 to 100 of about 87,553 (311)
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
doaj +1 more source
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
openaire +1 more source
Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm +6 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
doaj +1 more source
IEEE Access, 2020 The incomplete Hankel functions (IHFs) are employed to evaluate the scattered field from thin truncated cylinders excited by uniform plane waves or by arbitrarily oriented elemental current sources. Metallic and dielectric lossy structures are modeled by
Renato Cicchetti +3 more
doaj +1 more source
Ultra-sensitive and Wide Bandwidth Thermal Measurements of Graphene at Low Temperatures
, 2012 Graphene is a material with remarkable electronic properties and exceptional thermal transport properties near room temperature, which have been well examined and understood.
Fong, Kin Chung, Schwab, Keith
core +2 more sources
Advanced Engineering Materials, EarlyView.The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu +8 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin +5 more
wiley +1 more source
Physical Review Accelerators and Beams, 2016 We have developed a conceptual design of a next-generation pulsed-power accelerator that is optimized for megajoule-class dynamic-material-physics experiments.
W. A. Stygar +30 more
doaj +1 more source