Results 31 to 40 of about 2,245,350 (289)
Near-Field Millimeter-Wave Imaging via Multi-Plane MIMO Arrays
IEEE Access, 2023 Multiple-input multiple-output (MIMO) array-based millimeter-wave (MMW) imaging has broad application prospects in concealed weapons detection due to its capability of high resolution at a reasonable cost.
Guangnan Xing +4 more
doaj +1 more source
Cylindrical dielectric resonator antenna array
Electronics Letters, 1995 A 1/spl times/2 linear cylindrical resonator antenna array is studied experimentally. The DR antenna is excited by an aperture-coupled source and is operated at the fundamental broadside TM/sub 110/ mode. The input impedance, the radiation pattern, the antenna gain, and the mutual coupling of the array are studied.
K.Y. Chow +3 more
openaire +1 more source
Hysteretic ac loss of polygonally arranged superconducting strips carrying ac transport current
, 2007 The hysteretic ac loss of a current-carrying conductor in which multiple superconducting strips are polygonally arranged around a cylindrical former is theoretically investigated as a model of superconducting cables.
Inada +5 more
core +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
IEEE Access, 2021 In the current work, for the first time, the design equations for an array of rectangular slots axially placed on a cylindrical waveguide are driven and presented, making it possible to attain asymmetrical and non-broadside patterns with higher ...
Mahmoud Sharafi Masouleh +2 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Phase‐changing liquids enable untethered pneumatic actuation in soft robotics but suffer from volatility and storage challenges. This work reports a simple method to encapsulate Novec 7000 within micron‐thin alginate shells via in situ injection and ionic crosslinking.
Rayan A. M. Basodan +3 more
wiley +1 more source
Zhongguo Jianchuan Yanjiu, 2017 The existing underwater noise source near-field location method usually assumes that the measurement plane is flat, which increases the difficulty of applying the underwater noise target test for cylindrical distribution. Simultaneously, the conventional
ZUO Xiang, CHEN Huan
doaj +1 more source
Motion and equilibrium of a spheromak in a toroidal flux conserver [PDF]
, 1991 A number of experiments have been performed on spheromaks injected into the empty vacuum vessel of the Caltech ENCORE tokamak (i.e., without tokamak plasma) [Phys. Rev. Lett. 64, 2144 (1990); Phys. Fluids B 2, 1306 (1990)].
Bellan, P. M. +2 more
core +1 more source
Advanced Engineering Materials, EarlyView.This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff +9 more
wiley +1 more source
Thermocouple, multiple junction reference oven [PDF]
, 1981 An improved oven for maintaining the junctions of a plurality of reference thermocouples at a common and constant temperature is described. The oven is characterized by a cylindrical body defining a heat sink with axially extended-cylindrical cavity a ...
Leblanc, L. P.
core +1 more source