Results 81 to 90 of about 336,853 (296)
mm-Wave DRW Antenna Phase Centre Determination [PDF]
, 2010 This document presents an approach to the phase centre determination of a dielectric rod waveguide (DRW) antenna by means of measurements obtained with a planar measuring system at millimeter wave lengths.
Ala Laurinaho, J. +6 more
core +1 more source
Multipurpose High Frequency Electron Spin Resonance Spectrometer for Condensed Matter Research
, 2009 We describe a quasi-optical multifrequency ESR spectrometer operating in the 75-225 GHz range and optimized at 210 GHz for general use in condensed matter physics, chemistry and biology. The quasi-optical bridge detects the change of mm wave polarization
A Rockenbauer +31 more
core +1 more source
Advanced Engineering Materials, EarlyView.This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar +7 more
wiley +1 more source
A 5G NR FR2 Beamforming System with Integrated Transceiver Module
SensorsThis paper presents a 5G new radio (NR) FR2 beamforming system with an integrated transceiver module. A real-time operating module providing enhanced flexibility and capability has been proposed.
Ayush Bhatta +3 more
doaj +1 more source
Numerical Modeling of Tank Cars Carrying Hazardous Materials With and Without Composite Metal Foam
Advanced Engineering Materials, EarlyView.Large‐scale puncture models consisting of hazardous materials (HAZMATs) tank car with protective steel–steel composite metal foam (S–S CMF) are solved numerically. Tank car plate with added 10.91–13.33 mm thick S–S CMF layer does not puncture. Protective S–S CMF absorbs impact energy, reduces plate deformation, and prevents shear bands formation ...
Aman Kaushik, Afsaneh Rabiei
wiley +1 more source
MEASURING DEVICES OF 3-MM WAVE-LENGTH RANGE
Приборы и методы измерений, 2015 The problems of development as well as methods of construction of measuring devices of 3-mm wavelength range are examined, which allow to provide high degree of accuracy of frequency and power of an input signal measurement.
V. V. Murav’iov +2 more
doaj
Advanced Engineering Materials, EarlyView.Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov +4 more
wiley +1 more source
128-QAM Based mm-Wave Communication (5G) Architecture
International Journal of Electrical Engineering and Applied Sciences, 2019 Demand for bandwidth can never be fulfilled with any definite amount. Population is growing at a high speed which also causes an increase in the demand for bandwidth. Currently available bands ranging up-to 10 GHz is at the edge of saturation. So a newer
Abdullah Al-Mamun Bulbul +3 more
doaj
Demonstration of a Hybrid B5G System Integrating VLC and RF-Based Technologies with Access Networks
Applied SciencesVisible-light communication (VLC) has emerged as a promising technology to provide the very high-throughput wireless communications demanded by beyond-fifth-generation (B5G) applications.
Tomás Powell Villena Andrade +3 more
doaj +1 more source
Design of mm-wave slow-wave devices with sheet and hollow electron beams
EPJ Web of Conferences, 2018 The frequency increase of the slow-wave electron devices is accompanied by inevitable increase of the electron current density and ohmic losses which strongly restricts the attainable power.
Fedotov A.E. +3 more
doaj +1 more source