Results 111 to 120 of about 260 (157)

Structural, chemical and technofunctional properties pectin modification by green and novel intermediate frequency ultrasound procedure. [PDF]

Ultrason Sonochem
Condezo-Hoyos L, Cortés-Avendaño P, Lama-Quispe S, Calizaya-Milla YE, Méndez-Albiñana P, Villamiel M.   +5 more
europepmc   +1 more source

Benchmarking of Multispectral Pansharpening: Reproducibility, Assessment, and Meta-Analysis. [PDF]

J Imaging
Alparone L, Garzelli A.
europepmc   +1 more source

Brain-implanted conductors amplify radiofrequency fields in rodents: Advantages and risks. [PDF]

Bioelectromagnetics
Vöröslakos M, Yaghmazadeh O, Alon L, Sodickson DK, Buzsáki G.   +4 more
europepmc   +1 more source

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A Novel Overmoded Slow-Wave High-Power Microwave (HPM) Generator

IEEE Transactions on Plasma Science, 2004
We present the design and experimental results of a novel overmoded slow-wave high-power microwave (HPM) generator that is featured by its compactness, low-operation magnetic field, and potentially high power and high efficiency. The device includes two slow-wave structure (SWS) sections, a resonant cavity, and a tapered waveguide.
Hui-Huang Zhong
exaly   +2 more sources

Pulsed beamless High Power Microwave (HPM) source with integrated antenna

2013 19th IEEE Pulsed Power Conference (PPC), 2013
Summary form only given. High-power beamless oscillator with phasing capability is described. An oscillator is integrated with the TEM horn antenna. Two separate exciters and phased in the common coaxial electrodynamic structure. The electrodynamic structure drives a mode converter and transformer integrated with TEM horn.
V A. Somov, Yu. Tkach, S. A. Mironenko, L. Altgilbers, Ya. Tkach   +4 more
exaly   +2 more sources

Investigation on Failure Mechanisms of GaN HEMT Caused by High-Power Microwave (HPM) Pulses

IEEE Transactions on Electromagnetic Compatibility, 2017
This study aims at studying thermal and stress breakdown of gallium nitride (GaN) high-electron-mobility transistors (HEMTs) with a high-power microwave (HPM) pulse injected. A thermal breakdown model, depending on its pulse width and duty cycle, is proposed at first, and an equation is derived for calculating power threshold when both geometrical and ...
Wen-Yan Yin
exaly   +2 more sources

HPM WBTS, a transportable high-power wide-band microwave source

2010 IEEE International Power Modulator and High Voltage Conference, 2010
HPM WBTS (High Power Microwave, Wide-Band Threat Systems) is a high power, repetitively pulsed, wide-band microwave generator. The HPM WBTS microwave capability covers the range of 200MHz to 6GHz in nine frequency bands. E-Field specification at target is 30–110 V/m/MHz depending on frequency.
D. Morton, J. Banister, T. DaSilva, J. Levine, T. Naff, I. Smith, H. Sze, T. Warren, D. V. Giri, C. Mora, J. Pavlinko, J. Schleher, C. E. Baum   +12 more
exaly   +2 more sources

Pulsed high power microwave (HPM) oscillator with phasing capability

2013 19th IEEE Pulsed Power Conference (PPC), 2013
A pulsed, beamless HPM oscillator is described. The oscillator operates in the frequency band of 120-600 MHz and has a peak RF power of 1.8 GW. The oscillator produces bursts of HPM pulses having a length of 8-10 ns, containing 3 individual pulses, each having rise times on the order of 200 ps. The oscillator uses a custom-designed dipole antenna array
V A. Somov, Yu. Tkach, S. A. Mironenko, L. Altgilbers, M. Rader, Ya. Tkach   +5 more
exaly   +2 more sources

A narrow‐band overmoded rectangular waveguide filter for high‐power microwaves (HPMs)

Microwave and Optical Technology Letters, 2023
AbstractAn overmoded rectangular waveguide filter with the advantages of narrowband and high power is presented in this paper. The transmission efficiency of each mode in the filter is analyzed based on mode‐matching techniques and optimized by combining it with the calculation method.
Meiling Li, Wensi He, Qi Zheng, Xuexia Yang, Zixuan Yi   +4 more
openaire   +1 more source