Results 81 to 90 of about 98,816 (301)
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
High-Rate Space Coding for Reconfigurable 2x2 Millimeter-Wave MIMO Systems
, 2015 Millimeter-wave links are of a line-of-sight nature. Hence, multiple-input multiple-output (MIMO) systems operating in the millimeter-wave band may not achieve full spatial diversity or multiplexing.
Hua, Yingbo +3 more
core
Millimeter-wave atmospheric loss prediction method [PDF]
, 1969 Relationship between atmospheric attenuation and the ground temperature and humidity provides a reference from which changes in temperature and humidity will produce a corresponding atmospheric loss figure.
Stelzried, C. T.
core +1 more source
Millimeter Wave Communications with Reconfigurable Antennas
, 2018 The highly sparse nature of propagation channels and the restricted use of radio frequency (RF) chains at transceivers limit the performance of millimeter wave (mmWave) multiple-input multiple-output (MIMO) systems. Introducing reconfigurable antennas to
He, Biao, Jafarkhani, Hamid
core +1 more source
Advanced Engineering Materials, EarlyView.Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley +1 more source
Solid-state millimeter wave power generation and amplification Semiannual status report, 1 Sep. 1967 - 29 Feb. 1968 [PDF]
Solid state millimeter wave power generation and amplification ...
Rafuse, R. P.
core +1 more source
Robust Spot Melting by 3D Spot Arrangements in Electron Beam Powder Bed Fusion
Advanced Engineering Materials, EarlyView.This work proposes an approach to replace separately melted contours for spot melting in electron beam powder fusion. Adapting the spot arrangements close to the contour combined with stacking yields a comparable surface quality without the inherent challenges of separate contours, as demonstrated, by electron optical images and roughness measurements.
Tobias Kupfer +4 more
wiley +1 more source
RF Energy Harvesting for Ubiquitous, Zero Power Wireless Sensors
International Journal of Antennas and Propagation, 2018 This paper presents a review of wireless power transfer (WPT) followed by a comparison between ambient energy sources and an overview of different components of rectennas that are used for RF energy harvesting. Being less costly and environment friendly,
Warda Saeed +3 more
doaj +1 more source
A millimeter wave propagation experiment from the ATS-E spacecraft [PDF]
Millimeter wave propagation experiment from Applications Technology Satellite-
Dees, J. W., King, J. L., Wiltse, J. C.
core +1 more source
Novel Millimeter-Wave Electro-optic Modulator [PDF]
, 1990 A waveguide LiNbO_3 electro-optic modulator has been demonstrated with a novel wave-coupling technique which greatly reduces phase-velocity mismatch. An 8-12 GHz version produces 48° phase modulation with 126 mW of drive power.
Bridges, William B. +2 more
core