Suggested Topics within your search.
Suggested Topics within your search.
- Physics 1
-
101
Multi-physical field null medium: new solutions for the simultaneous control of EM waves and heat flow
Published 2024-11-01“…This work introduces a structure that can control simultaneously both electromagnetic waves and heat flow. For the first time, a single structure capable of cloaking both electromagnetic waves and heat flow was experimentally demonstrated. …”
Get full text
Article -
102
Intelligent Target Detection in Synthetic Aperture Radar Images Based on Multi-Level Fusion
Published 2025-01-01Get full text
Article -
103
-
104
Tuning a SAM-Based Model With Multicognitive Visual Adapter to Remote Sensing Instance Segmentation
Published 2025-01-01Get full text
Article -
105
-
106
On an initial-boundary value problem for the nonlinear Schrödinger equation
Published 1979-01-01“…We study an initial-boundary value problem for the nonlinear Schrödinger equation, a simple mathematical model for the interaction between electromagnetic waves and a plasma layer. We prove a global existence and uniqueness theorem and establish a Galerkin method for solving numerically the problem.…”
Get full text
Article -
107
The Exact Absorbing Conditions Method in the Analysis of Open Electrodynamic Structures: Circular and Coaxial Waveguides
Published 2014-01-01“…The exact absorbing conditions (EAC) have been constructed and used for truncating an unbounded domain of computation in open initial boundary value problems, which describe space-time transformations of electromagnetic waves in axially symmetrical waveguides. …”
Get full text
Article -
108
Electromagnetic Field Analysis and Shielding Method of Underground Variable Frequency Power Cable
Published 2022-01-01“…The transmission and radiation of underground variable frequency electromagnetic waves will seriously interfere with the operation of the power cable and its surrounding environment. …”
Get full text
Article -
109
Resonances in Reverse Vavilov-Cherenkov Radiation Produced by Electron Beam Passage over Periodic Interface
Published 2015-01-01“…For the first time, several physical peculiarities owing to these effects are considered in the conditions of possible resonant scattering of electromagnetic waves.…”
Get full text
Article -
110
Comparison Analysis of Single Loop Resonator Based Miniaturized Triple-Band Planar Monopole Antennas
Published 2015-01-01“…Two feed techniques (coplanar waveguide and microstrip feeds) are performed to couple the electromagnetic waves. The conventional planar monopole antennas without the SLRs are also analyzed comparatively. …”
Get full text
Article -
111
Au sujet du besoin d’un niveau de preuve robuste pour évaluer le risque
Get full text
Article -
112
Uniqueness in Inverse Electromagnetic Conductive Scattering by Penetrable and Inhomogeneous Obstacles with a Lipschitz Boundary
Published 2012-01-01“…This paper is concerned with the problem of scattering of time-harmonic electromagnetic waves by a penetrable, inhomogeneous, Lipschitz obstacle covered with a thin layer of high conductivity. …”
Get full text
Article -
113
Overview of reconfigurable intelligent surface for new-generation mobile communication
Published 2022-10-01“…Reconfigurable intelligent surface technology, which features low cost, low energy consumption and easy deployment, is the potential key technology of 6G.By intelligently regulating electromagnetic waves in space, RIS can assist in building an intelligent and controllable wireless electromagnetic environment, thus providing a new paradigm for the development of mobile communications.Firstly, the basic principle, main technology advantages and application scenarios were analyzed.Then, the key technologies such as channel estimation and beamforming in RIS aided communication transmission were discussed, and relevant research suggestions were given.Finally, the main challenges of RIS technology in practical application were analyzed from the aspects of hardware implementation, algorithm design and network deployment.…”
Get full text
Article -
114
An Underwater Wireless Sensor Network with Realistic Radio Frequency Path Loss Model
Published 2013-03-01“…We propose an Underwater Wireless Sensor Network (UWSN) for near-shore applications using electromagnetic waves (EM). We also introduce a realistic path loss model for estimating the attenuation encountered by EM waves in underwater environments. …”
Get full text
Article -
115
NONCONVENTIONAL TECHNIQUE FOR PRODUCING HIGH MECHANICAL STRENGTH GLASS FOAM FROM GLASS WASTE
Published 2019-06-01“…By replacing the usual conventional energy source with a nonconventional energy (electromagnetic waves) the heating efficiency allows a fast and economical manufacturing process. …”
Get full text
Article -
116
APPLICATION OF MILLIMETER WAVE′S RADIOMETRIC SYSTEM FOR DETECTION OF MALIGNANT NEW GROWTHS OF MAMMARY GLANDS
Published 2015-03-01“…This phenomenon appears to altered tissue the presence of slumps that due to the interaction of electromagnetic waves with the tissue samples may be explained by the so-called stochastic resonance effect.…”
Get full text
Article -
117
Abundant Soliton Structures to the (2+1)-Dimensional Heisenberg Ferromagnetic Spin Chain Dynamical Model
Published 2023-01-01“…The results obtained in this study are helpful to explain some physical meanings of some nonlinear physical models in electromagnetic waves.…”
Get full text
Article -
118
Subwavelength Plasmonic Waveguides and Plasmonic Materials
Published 2012-01-01“…The oscillation of free electrons, when properly driven by electromagnetic waves, would form plasmon-polaritons in the vicinity of metal surfaces and potentially result in extreme light confinement. …”
Get full text
Article -
119
Evolutionary Algorithm Geometry Optimization of Optical Antennas
Published 2016-01-01“…This work presents the results of using a genetic algorithm (GA) for obtaining an optimized geometry (unconventional geometries) that may be used as optical regime antennas to capture electromagnetic waves. The radiation patterns and optical properties of the GA generated geometries were compared with the conventional dipole geometry. …”
Get full text
Article -
120
Application of reconfigurable intelligent surface in beamforming and information modulation
Published 2021-09-01“…In modern mobile communications, the randomness, uncertainty, and uncontrollability of wireless channels are the pivotalfactors that affect the communication quality, which often leads to the deterioration of the signal quality at the receiving terminal, and thereby limiting the rate and range of information transmission.In the emerging study of 6G technology, reconfigurable intelligent surface is one of the research directions under active discussions, which is an ultra-thin artificial surface composed of sub-wavelength structures with field programmability and spatiotemporal information modulation capabilities.The reconfigurable intelligent surface can manipulate electromagnetic waves accurately and efficiently, thus providing the possibility for reshaping the wireless propagation environment.In this review, the concept of the reconfigurable intelligent surface, the beam forming method based on spatiotemporal modulation, the wireless relay and the communication system based on the reconfigurable intelligent surface were reviewed and discussed.It demonstrates the great potential of reconfigurable intelligent surface in assisting mobile communication, and provides new ideas for the development of 6G.…”
Get full text
Article