Results 21 to 30 of about 1,455,399 (244)

Study on the Propagation Characteristics of Terahertz Waves in Dusty Plasma with a Ceramic Substrate by the Scattering Matrix Method

Sensors, 2021
The propagation characteristics of terahertz (THz) waves incident vertically into inhomogeneous and collisional dusty plasma with a ceramic substrate are studied using the scattering matrix method (SMM).
Qingwen Rao, Guanjun Xu, Pengfei Wang, Zhengqi Zheng   +3 more
doaj   +1 more source

Multidimensional Bosonization

, 2000
Bosonization of degenerate fermions yields insight both into Landau Fermi liquids, and into non-Fermi liquids. We begin our review with a pedagogical introduction to bosonization, emphasizing its applicability in spatial dimensions greater than one ...
Houghton, A., Kwon, H. -J., Marston, J. B.   +2 more
core   +1 more source

A Novel Photonic-Based MIMO Radar Architecture With All Channels Sharing a Single Transceiver

IEEE Access, 2019
A novel photonic-based multiple-input multiple-output (MIMO) radar architecture is reported based on optical frequency combs and dispersion induced wavelength-dependent time delay.
Yang Chen, Beiyue Weng, Jialin Liu
doaj   +1 more source

Study of the Propagation Characteristics of Terahertz Waves in a Collisional and Inhomogeneous Dusty Plasma with a Ceramic Substrate and Oblique Angle of Incidence

International Journal of Antennas and Propagation, 2021
In this paper, the propagation properties of a terahertz (THz) wave in a collisional and inhomogeneous dusty plasma with a ceramic substrate and oblique angle of incidence are studied using the scattering matrix method.
Qingwen Rao, Guanjun Xu, Pengfei Wang, Zhengqi Zheng   +3 more
doaj   +1 more source

Multiple multidimensional morse wavelets [PDF]

, 2007
This paper defines a set of operators that localize a radial image in space and radial frequency simultaneously. The eigenfunctions of the operator are determined and a nonseparable orthogonal set of radial wavelet functions are found. The eigenfunctions
Metikas, G, Olhede, SC
core   +1 more source

Stochastic Differential Equations Driven by Fractional Brownian Motion and Standard Brownian Motion

, 2008
We prove an existence and uniqueness theorem for solutions of multidimensional, time dependent, stochastic differential equations driven simultaneously by a multidimensional fractional Brownian motion with Hurst parameter H>1/2 and a multidimensional ...
David Nualart, Hamadouche D., João Guerra, Kolmogorov A.N., Lyons T., Lyons T., Nualart D., Samko S.G., Skorokhod A.V., Yamada T.   +9 more
core   +2 more sources

Research on the direction estimation algorithm of vector hydrophones under near-field and Far-field Reflecting Boundary

International Journal of Metrology and Quality Engineering
To address the impact of reflection boundaries and port and starboard ambiguity on passive sonar positioning, a method of vector hydrophone hybrid source positioning under different reflection boundaries is proposed. When the reflection boundary is close
Shang Zhenzhen, Zhang Xiaoyong, Kou Hairong, Yang Libo, Zhang Guojun   +4 more
doaj   +1 more source

Relativistic Bistatic Scattering of a High-Speed Moving Plasma Coated Object

International Journal of Antennas and Propagation, 2023
Accurate modeling of relativistic electromagnetic scattering characteristics from high-speed motion of plasma coated objects is crucial for the development of hypersonic aircraft and their applications in the identification and surveillance of moving ...
Pengcheng Ren, Lei Kuang, Jianjun Gao, Qing Huo Liu   +3 more
doaj   +1 more source

Synthesis and properties of mirror-like large-grain graphite films

Nature Communications
Graphite films with large grain sizes have been reportedly obtained by using metal as catalysts, but the obtained graphite is mostly heavily wrinkled, thus containing defects that degrade its properties.
Liyuan Zhang, Meihui Wang, Dongho Jeon, Yongqiang Meng, Sun Hwa Lee, Myeonggi Choe, Yunqing Li, Mengran Wang, Sherilyn J. Lu, Zonghoon Lee, Won Kyung Seong, Rodney S. Ruoff   +11 more
doaj   +1 more source

Multidimensional operator multipliers

, 2008
We introduce multidimensional Schur multipliers and characterise them generalising well known results by Grothendieck and Peller. We define a multidimensional version of the two dimensional operator multipliers studied recently by Kissin and Shulman. The
Juschenko, K., Todorov, I. G., Turowska, L.   +2 more
core   +1 more source