Results 81 to 90 of about 1,380,112 (215)

Thermo‐Kinetic Design of Magnesiothermic Reduction for Morphology‐Retaining Porous Si@C Anodes

Small, Volume 22, Issue 55, 1 October 2026.
Balancing Mg‐vapor supply and surface consumption during magnesiothermic reduction suppresses particle aggregation and preserves monodisperse morphology in porous Si@C spheres. The resulting architecture improves transport uniformity and reduces degradation within the electrode, leading to more stable high‐capacity cycling than aggregated counterparts ...
Chaeheon Woo, Yeongjin Kim, Xue Dong, Byung Joo Jeong, Xiaojie Zhang, Hyeon‐Seok Bang, Kyung In Kim, Minjae Kim, Donghyeon Lee, Junyoung Mun, Hak Ki Yu, Jae‐Young Choi   +11 more
wiley   +1 more source

Performance analysis of layered random beamforming OFMDA with feedback reduction [PDF]

, 2007
This paper presents a downlink performance analysis of a Layered Random Beamforming (LRB) - MIMO-OFDMA Physical Layer (PHY) with feedback reduction as applicable to future generation wireless communication systems.
Joe McGeehan, Yong Sun, Angela Doufexi, Doufexi, A, McGeehan, JP, Han, C, Sun, Y, Armour, SMD, Simon Armour, Congzheng Han   +9 more
core   +1 more source

Sideband Suppression and Power Efficient Hybrid Beamforming Using Time-Modulated Arrays for Millimeter Wave Communications

IEEE Access
Hybrid beamforming is an essential technique to overcome the high path-loss of millimeter wave (mmWave) communications and allows a design trade-off between complexity and performance of fully digital and analog beamforming.
Yuchen Huang, Mohammed El-Hajjar, Lie-Liang Yang   +2 more
doaj   +1 more source

A Global Centroid Catalog of S‐Wave Microseisms: Insights Into the Role of Sedimentary Layers

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 10, October 2026.
Abstract Although centroid catalogs of P‐wave microseisms have been established, a corresponding centroid catalog of S‐wave sources has been lacking. In this study, we constructed a centroid catalog of S‐wave microseisms. We generalized the autofocusing method to radial and transverse components to estimate the source locations of SV‐ and SH‐wave ...
Shota Kato, Kiwamu Nishida, Ryota Takagi
wiley   +1 more source

Beamforming method: suppression of spatial aliasing using moving arrays

, 2008
In the scientific and industrial community a growing interest is nowadays devoted to sound source localization techniques. Among all the existing methods, the use of the beamforming algorithm in sound source localization problems is increasing, thanks ...
LURATI M., RIPAMONTI F., VANALI, Marcello, CIGADA A   +3 more
core  

An efficient scheme for broadband adaptive beamforming [PDF]

, 1999
This paper introduces an oversampled subband approach to linearly constrained minimum variance adaptive broadband beamforming. This method is motivated by the considerable reduction in computation over fullband implementation and resulting large ...
S. Weiss, I.K. Proudler, Weiss, S., R.W. Stewart, Stewart, R.W., M.W. Hoffman, Schabert, Marion, Hoffman, Michael, Weiss, Stephan, Proudler, I., Schabert, M., M. Schabert, Hoffman, M.W., Stewart, Robert   +13 more
core   +1 more source

Beamforming With Hybrid Reconfigurable Parasitic Antenna Arrays

IEEE Transactions on Wireless Communications
A parasitic reconfigurable antenna array is a low-power approach for beamforming using passive tunable elements. Prior work on reconfigurable antennas in communication theory is based on ideal radiation pattern abstractions. It does not address the problem of physical realizability.
Nitish Vikas Deshpande 0001, Miguel Rodrigo Castellanos, Saeed R. Khosravirad, Jinfeng Du, Harish Viswanathan, Robert W. Heath Jr.   +5 more
openaire   +2 more sources

Energy efficient hybrid beamforming for millimeter wave massive MIMO wireless communication system

Scientific Reports
In this paper, we propose an energy efficient hybrid beamforming architecture for millimeter-wave (mmWave) massive MIMO communication systems operating at 28 GHz, utilizing a 16 × 16 antenna array.
Girija Shankar Sahoo, Anumoy Ghosh, Monali Bordoloi, Priyanka Singh, Jayendra Kumar   +4 more
doaj   +1 more source

A review of beamforming microstrip patch antenna array for future 5G/6G networks

Frontiers in Mechanical Engineering
With the increase in demand for high data rates and high bandwidth because of multiple users all over the globe, the technology has moved toward the next-generation of wireless communication.
Muhammad Asfar Saeed, Augustine O. Nwajana   +1 more
doaj   +1 more source

Adaptive beamforming assisted receiver

, 2007
Adaptive beamforming is capable of separating user signals transmitted on the same carrier frequency, and thus provides a practical means of supporting multiusers in a space-division multiple-access scenario.
Sheng Chen, Chen, Sheng
core