Results 91 to 100 of about 336,853 (296)

Efficient and Accurate hybrid GO-Spectral Algorithm to Design Conformal Serrated-Edge Reflectors Operating as Collimators in Millimeter Wave Compact Ranges [PDF]

open access: yes, 2010
This paper presents a hybrid analysis algorithm, which is used at Radiation Group (UPM) to carry out the design of a conformal serrated-edge reflector for the mm-Wave compact range UPM facility.
Besada Sanmartin, Jose Luis   +2 more
core   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced 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

Robust Spot Melting by 3D Spot Arrangements in Electron Beam Powder Bed Fusion

open access: yesAdvanced 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

Wideband Waveguide-to-Microstrip Transition for mm-Wave Applications

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2019
Introduction. Increased data rate in modern communication systems can be achieved by raising the operational frequency to millimeter wave range where wide transmission bands are available.
Andrey V. Mozharovskiy   +4 more
doaj   +1 more source

Star formation in clusters: a survey of compact mm-wave sources in the Serpens core

open access: yes, 1998
We report the results of a millimeter interferometric survey of compact 3 mm continuum sources in the inner 5.5'x5.5' region of the Serpens core. We detect 32 discrete sources above 4.0 mJy/beam, 21 of which are new detections at millimeter wavelengths ...
Andre P.   +16 more
core   +2 more sources

MM-wave dielectric ring resonators

open access: yes1985 Tenth International Conference on Infrared and Millimeter Waves, 1985
Ring resonators fabricated by filling a rectangular cross-section groove in a polypropylene substrate with a dielectric powder exhibit Q's as high as 2400 at 94 GHz in an 8 cm diameter ring. Directional coupling from adjacent straight dielectric guides was used to form a transmission filter.
Bruno, W. M., Bridges, W. B.
openaire   +2 more sources

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

open access: yesAdvanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai   +6 more
wiley   +1 more source

Waveguide divider 10 mm wave band with isolated outputs

open access: yesТехнологія та конструювання в електронній апаратурі, 2007
The results of the development and experimental study of a waveguide divider in the E‑plane of a waveguide with a cross section of 7.2×3.4 mm are presented.
I. V. Yakovlev   +2 more
doaj  

Multiview mm-Wave Imaging With Augmented Depth Camera Information

open access: yesIEEE Access, 2018
This paper introduces a hybrid method that combines two 3-D imaging methods of very different nature but complementary. On the one hand, a depth camera, also known as RGB-D camera, is used in order to obtain a 3-D scan of the target under test.
Jaime Laviada   +3 more
doaj   +1 more source

Enhanced Strength and Corrosion Resistance of Ti‐13Nb‐12Ta‐10Zr‐4Sn Alloy by Aging Treatment

open access: yesAdvanced Engineering Materials, EarlyView.
This work systematically investigates the effect of aging treatment on mechanical properties and corrosion behavior of vacuum arc‐melted Ti‐13Nb‐12Ta‐10Zr‐4Sn alloy. Owing to the increased α″ martensite, strength and corrosion resistance were significantly enhanced by aging treatment.
Yuhua Li   +5 more
wiley   +1 more source

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