Results 51 to 60 of about 2,878,811 (302)

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

Downlink multi-user algorithms for millimeter-wave wideband linear arrays on PD-NOMA-based squint steering beams

EURASIP Journal on Advances in Signal Processing, 2021
This article investigates using a phased linear antenna array instead of the planar array to circumvent the problem that two frequency squint steering main beams cannot cover any two beam directions simultaneously.
Xiaoliang Pan, Luxi Yang
doaj   +1 more source

A wide-beam NCS algorithm for multi-receiver SAS based on azimuth spectrum superposition

Frontiers in Marine Science, 2023
The existing multi-receiver synthetic aperture sonar (SAS) imaging algorithms are suitable for narrow-beam width, which will lead to a decrease in imaging quality under wide-beam condition and are not in line with the development needs of SAS. We propose
Mingqiang Ning, Heping Zhong, Han Li, Mengbo Ma, Lili Dai, Jinsong Tang   +5 more
doaj   +1 more source

Brillouin Optical Correlation Domain Analysis in Composite Material Beams [PDF]

Sensors, 2017
Structural health monitoring is a critical requirement in many composites. Numerous monitoring strategies rely on measurements of temperature or strain (or both), however these are often restricted to point-sensing or to the coverage of small areas. Spatially-continuous data can be obtained with optical fiber sensors.
Yonatan Stern, Yosef London, Eyal Preter, Yair Antman, Hilel Hagai Diamandi, Maayan Silbiger, Gadi Adler, Eyal Levenberg, Doron Shalev, Avi Zadok   +9 more
openaire   +5 more sources

Absolute beam position monitoring using HOM-damper signals [PDF]

, 2005
To preserve the required beam quality in an e+/e- collider it is necessary to have a very precise beam position control at each accelerating cavity. An elegant method to avoid additional length and beam disturbance is the usage of signals from existing ...
Schreiber, Gerald, Hülsmann, Peter, Klein, Horst, Peschke, Claudius   +3 more
core  

Dual-domain network with transfer learning for bowtie-filter induced artifacts in half-fan cone-beam CT

, 2022
In a cone-beam CT system, the use of bowtie-filter may induce artifacts in the reconstructed images. Through a Monte-Carlo simulation study, we confirm that the bowtie filter causes spatially biased beam energy difference thereby creating beam-hardening ...
Jeong, Uijin, Yun, Sungho, Kim, Donghyeon, Kim, Hyeongseok, Cho, Seungryong   +4 more
core  

Concatenated Beam- and Antenna-domain Layered Belief Propagation for Large MIMO Detection [PDF]

, 2019
This paper proposes concatenated beam- and antenna-domain belief propagation (BP) based signal detector for realizing low-complexity large multi-user multi-input multi-output (MU-MIMO) detection. As a low-complexity strategy for large-scale MU detection (
Sampei, Seiichi, Seiichi Sampei, Takahashi, Takumi, Shinsuke Ibi, Takumi Takahashi, Tölli, Antti, Ibi, Shinsuke, Antti Tolli   +7 more
core   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Beam-Tracing Domain Decomposition Method for Urban Acoustic Pollution [PDF]

2014 13th International Symposium on Distributed Computing and Applications to Business, Engineering and Science, 2014
This paper covers the fast solution of large acoustic problems on low-resources parallel platforms. A domain decomposition method is coupled with a dynamic load balancing scheme to efficiently accelerate a geometrical acoustic method. The geometrical method studied implements a beam-tracing method where intersections are handled as in a ray-tracing ...
Gbikpi-Benissan, G., Magoules, F.
openaire   +3 more sources

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source