Results 21 to 30 of about 1,190,582 (247)
Bandwidth and Center Frequency Reconfigurable Waveguide Filter Based on Liquid Crystal Technology
IEEE Journal of Microwaves, 2022 This paper presents for the first time a fully electronically reconfigurable waveguide filter tunable in bandwidth and center frequency based on liquid crystal (LC) technology.
Fynn Kamrath +10 more
doaj +1 more source
Flash microwave pressing of zirconia [PDF]
Journal of the American Ceramic Society, Wiley, 2020, 2020 Microwave Pressing is a promising way to reduce microwave sintering temperatures and stabilize microwave powder materials processing. A multi-physics simulation was conducted of the regulated pressure-assisted microwave cavity. This simulation took into consideration resonance phenomena and the nonlinear temperature-dependent material parameters of ...
arxiv +1 more source
Assessment of Efficiency of Drying Grain Materials Using Microwave Heating [PDF]
, 2019 We present results of experimental work on studying the drying of a dense layer of grain using microwave heating. We investigated a series of techniques to supply heat to grain to assess energy efficiency of a microwave field.
Boshkov, L. (Leonid) +4 more
core +5 more sources
Current Developments of Sparse Microwave Imaging
Leida xuebao, 2014 The sparse microwave imaging combines the sparse signal processing theory with radar imaging to obtain new theory, new system, and new methodology of microwave imaging.
Wu Yi-rong +5 more
doaj +1 more source
Angle-Dependent Synthesis Method for Holographic Multi-Feed Antennas
IEEE Open Journal of Antennas and Propagation, 2023 A novel synthesis method for holographic multi-feed antennas is presented to combine all sub-holograms into an angle-dependent shared holographic aperture.
Thomas Frey +4 more
doaj +1 more source
Acrylic denture base repair (Part II): St-rength of acrylic denture base cured by four different techniques [PDF]
Al-Rafidain Dental Journal, 2006 Aim: To investigate the effect of repair techniques, surface treatment, and repair space design (3 mm space and no repair space) on the transverse, and tensile strengths of repaired denture base. Materials and methods: Four hundred and sixteen samples of
Repair acrylic denture base, microwave, thermo press. +1 more
doaj +1 more source
Fundamental issues in antenna design for microwave medical imaging applications [PDF]
, 2010 This paper surveys the development of microwave medical imaging and the fundamental challenges associated with microwave antennas design for medical imaging applications. Different microwave antennas used in medical imaging applications such as monopoles,
Busawon, Krishna +3 more
core +1 more source
IEEE Photonics Journal, 2014 An equivalent-asymmetric coupling coefficient (EACC) distributed feedback laser (DFB) semiconductor laser with equivalent-half apodization grating (EHAG) structure is proposed and experimentally demonstrated for the first time; the EHAG profile is ...
Junshou Zheng +7 more
doaj +1 more source
System Performance of a 79 GHz High-Resolution 4D Imaging MIMO Radar With 1728 Virtual Channels
IEEE Journal of Microwaves, 2022 Future driver assistance and autonomous driving systems require high-resolution 4D imaging radars that provide detailed and robust information about the vehicle's surroundings, even in poor weather or lighting conditions.
Dominik Schwarz +3 more
doaj +1 more source
Estimating Significant Wave Height from SAR with Long Integration Times
Applied Sciences, 2022 Synthetic aperture radar (SAR) is an important means of estimating significant wave height with obvious advantages of all-day, all-weather, high resolution and wide swath coverage.
Yawei Zhao +4 more
doaj +1 more source