Results 111 to 120 of about 4,005,914 (318)

Radiation behaviour of mm‐wave on‐wafer probes in H‐band and the influence on antenna measurements

Electronics Letters
This letter presents a comprehensive analysis of the radiation behaviour exhibited by nine distinct on‐wafer radio‐freqeuncy (RF) probes used for device characterization in the mm‐wave bands of integrated circuits and antennas.
Joachim Hebeler, Thomas Zwick, Akanksha Bhutani   +2 more
doaj   +1 more source

Experimental comparison of millimetre wave power monitor designs [PDF]

EPJ Web of Conferences
The ASDEX Upgrade electron cyclotron resonance heating system [1] uses multi-hole waveguide couplers integrated into the matching mirrors ‘M2’ for power monitoring. While the full Gyrotron output power (105 or 140 GHz, typ.
Schubert Martin, Kasparek Walter, Stober Jörg, Leuterer Friedrich   +3 more
doaj   +1 more source

Compact high‐power millimetre wave sources driven by pseudospark‐sourced electron beams

IET Microwaves, Antennas & Propagation, 2019
This article presents the demonstration of several compact millimetre wave sources driven both by a pencil or sheet electron beam from a pseudospark (PS) discharge. The millimetre wave sources include two pencil beam extended interaction oscillators (EIO)
Hua-Bi Yin, Liang Zhang, Jie Xie, K. Ronald, Wen-Long He, G. Shu, Jun-Ping Zhao, Yong Yin, Xiao-dong Chen, Y. Alfadhl, A. Phelps, A. Cross   +11 more
semanticscholar   +1 more source

OntOMat: Toward Ontology‐Based Product and Process Design Engineering and Optimization Solutions Fueling Circular Value Chains

Advanced Engineering Materials, EarlyView.
The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ, Jörg Hohe, Martin Kördel, Michael Giese, Niklas Toffert, Christian Seidel, Olaf Rehme, Patrik Schneider, Oliver Focke, Elie Abi Aoun, Claas Falldorf, Beñat Gutierrez, Alexandra Kühn, Sven Torstrick-von der Lieth, Christoph Herden, Erik Johannsen, Jan‐Uwe R. Schmidt, Felix Winkelmann, Andreas Schott, Daniel Schott   +19 more
wiley   +1 more source

2010 Annual Report

Oregon Wave Energy Trust (OWET) is a nonprofit public-private partnership funded by the Oregon Innovation Council. Its mission is to support the responsible development of wave energy in Oregon. OWET emphasizes an inclusive, collaborative model to ensure
Oregon Wave Energy Trust
core   +6 more sources

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

Advanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Interlaboratory Comparison of Power Measurements at Millimetre- and Sub-Millimetre-Wave Frequencies

Metrology
The aim of this paper is to compare the power measurement capabilities in millimetre- and sub-millimetre-wave frequency bands of several national metrology institutes and one research institute.
Murat Celep, Daniel Stokes, Erkan Danacı, François Ziadé, Przemysław Zagrajek, Marcin Wojciechowski, Gia Ngoc Phung, Karsten Kuhlmann, Alireza Kazemipour, Steven Durant, Jeffrey Hesler, Ian Instone, Handan Sakarya, Djamel Allal, Jürgen Rühaak, James Skinner, Daniel Stalder   +16 more
doaj   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

Advanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn, Sarah Kaden, Andrea Barz, Daniel Störzner, Jens Bliedtner, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Enhancement of the Through‐Thickness Electrical Conductivity of Carbon‐Fiber‐Reinforced Plastics Using Large Graphite Particles

Advanced Engineering Materials, EarlyView.
To enhance through‐thickness conductivity without sacrificing impregnation, large spherical graphite particles are intentionally employed in a low‐viscosity resin. Unlike finer conductive fillers, these particles remain outside the fiber bundles and accumulate in resin‐rich interlaminar regions during molding.
Keito Hosoe, Yu Zhou, Shintaro Kamiyama, Takao Okada, Tomohiro Yokozeki, Ryoma Tokonami, Tatsuhiro Takahashi   +6 more
wiley   +1 more source

Impact of Rain Attenuation on Path Loss and Link Budget in 5G mmWave Wireless Propagation Under South Africa’s Subtropical Climate

Telecom
Accurate estimation of path loss is essential for evaluating the impact of the propagation medium, determining transmission power requirements, and optimizing cell layouts for effective 5G millimetre wave coverage.
Sandra Bazebo Matondo, Pius Adewale Owolawi   +1 more
doaj   +1 more source