Results 11 to 20 of about 4,801,265 (322)

Overview of Signal Processing Techniques for Automotive Millimeter-wave Radar

Leida xuebao, 2023
As one of the core components of Advanced Driver Assistance Systems (ADAS), automotive millimeter-wave radar has become the focus of scholars and manufacturers at home and abroad because it has the advantages of all-day and all-weather operation ...
Yan HUANG, Hui ZHANG, Lyuhongkang LAN, Kun DENG, Yang YANG, Ruizhe ZHANG, Jiang LIU, Yanjun ZHANG, Yunxuan WANG, Rui ZHOU, Jun XU, Xinsuo XI, Xia ZHANG, Kaihang ZHENG, Yuming LIU, Wei HONG   +15 more
doaj   +1 more source

Combined Antenna-Channel Modeling for the Harsh Horse Hoof Environment

Sensors, 2022
This paper describes the exploration of the combined antenna–channel model for a horse hoof. An antenna of 25 mm × 40 mm is designed in the ISM 868 MHz band.
Jasper Goethals, Denys Nikolayev, Arno Thielens, Günter Vermeeren, Leen Verloock, Margot Deruyck, Luc Martens, Wout Joseph   +7 more
doaj   +1 more source

Paralinearization of the Dirichlet to Neumann operator, and regularity of three-dimensional water waves [PDF]

, 2009
This paper is concerned with a priori $C^\infty$ regularity for three-dimensional doubly periodic travelling gravity waves whose fundamental domain is a symmetric diamond.
Guy Métivier, Thomas Alazard, Water Waves   +2 more
core   +5 more sources

Characteristics and Outcomes of Hospitalized Patients in South Africa During the COVID-19 Omicron Wave Compared With Previous Waves.

Journal of the American Medical Association (JAMA), 2021
Characteristics and Outcomes of Hospitalized Patients in South Africa During the COVID-19 Omicron Wave Compared With Previous Waves On November 24, 2021, a SARS-CoV-2 variant of concern, Omicron (B.1.1.529), was identified in South Africa as responsible ...
C. Maslo, R. Friedland, M. Toubkin, A. Laubscher, Teshlin Akaloo, Boniswa Kama   +5 more
semanticscholar   +1 more source

Numerical modelling of wave penetration in Ostend Harbour [PDF]

, 2010
The initial Ostend harbour entrance at the North Sea coast of Belgium is being modified and extended with two new rubble-mound breakwaters. Through an integrated study of the wave penetration in Ostend harbour, the waves are being acquired by prototype ...
Gysens, Stefaan, Stratigaki, Vicky, Troch, Peter, Vanneste, Dieter, Willems, Marc   +4 more
core   +3 more sources

Wave attenuation in mangrove forests; field data obtained in Trang, Thailand [PDF]

, 2012
Mangroves thrive in sheltered intertidal areas in the tropics and sub-tropics. Due to this position at the interface between land and sea, mangroves play an important role in the attenuation of waves.
Balke, Thorsten, Bouma, Tjeerd, Dohmen-Janssen, Marjolein, Horstman, Erik, Hulscher, Suzanne J.M.H., Lynett, Patrick, McKee Smith, Janet, Narra, Pedro, Siemerink, Martijn, van den Berg, Niels-Jasper   +9 more
core   +3 more sources

Recent advances and perspectives on space-time coding digital metasurfaces

EPJ Applied Metamaterials, 2020
Within the overarching framework of space-time metastructures, digital metasurfaces based on spatio-temporal coding are emerging as powerful and versatile architectures for complex field manipulations, also in view of their inherently programmable nature.
Zhang Lei, Dai Jun Yan, Moccia Massimo, Castaldi Giuseppe, Cui Tie Jun, Galdi Vincenzo   +5 more
doaj   +1 more source

Linear and nonlinear waves

Scholarpedia, 2009
The study of waves can be traced back to antiquity where philosophers, such as Pythagoras (c.560-480 BC), studied the relation of pitch and length of string in musical instruments.
G. Griffiths, W. Schiesser
semanticscholar   +1 more source

Active odd-mode-metachannel for single-conductor systems

Opto-Electronic Advances, 2022
Although tremendous efforts have been devoted to investigating planar single-conductor circuits, it remains challenging to provide tight confinement of electromagnetic field and compatibility with active semi-conductor components such as amplifier ...
Pei Hang He, Ling Yun Niu, Yi Fan, Hao Chi Zhang, Le Peng Zhang, Dayue Yao, Wen Xuan Tang, Tie Jun Cui   +7 more
doaj   +1 more source

Space-time-coding digital metasurfaces

Nature Communications, 2018
Current digital coding metasurfaces are only space-encoded. Here, the authors propose space-time modulated digital coding metasurfaces to obtain simultaneous manipulations of electromagnetic waves and present harmonic beam steering, beam shaping, and ...
Lei Zhang, Xiao Qing Chen, Shuo Liu, Qian Zhang, Jie Zhao, Jun Yan Dai, Guo Dong Bai, Xiang Wan, Qiang Cheng, Giuseppe Castaldi, Vincenzo Galdi, Tie Jun Cui   +11 more
doaj   +1 more source