Results 41 to 50 of about 24,799 (117)

Field analysis for a highly overmoded iris line with application to THz radiation transport

open access: yesPhysical Review Accelerators and Beams, 2022
Vector field analysis is presented for a highly overmoded iris-line structure that can act as a medium of transportation for THz radiation. The axisymmetric structure is capable of supporting hybrid modes with desirable features such as low propagation ...
Adham Naji   +3 more
doaj   +1 more source

Preliminary Serial Femtosecond Crystallography Studies of Myoglobin from Equine Skeletal Muscle

open access: yesCrystals
Myoglobin (Mb), a heme-containing protein, plays crucial roles in storing and transporting oxygen in muscle cells. Various Mb structures have been extensively determined using conventional cryogenic crystallography, providing valuable information for ...
Jaehyun Park, Sehan Park, Ki Hyun Nam
doaj   +1 more source

Quelques aspects de la propagation des ondes radioélectriques

open access: yesTerritoire en Mouvement, 2012
This paper deals with the scattering of electromagnetic wave in space, especially for radio frequency waves used for broadcasting, TV and telecommunication devices.
Bernard Démoulin
doaj   +1 more source

Effects of Radiation Damage on Metal-Binding Sites in Thermolysin

open access: yesCrystals
Radiation damage is an inherent problem in macromolecular crystallography because it impairs the diffraction quality of crystals and produces inaccurate structural information.
Ki Hyun Nam
doaj   +1 more source

Some Aspects of the Inverse Problem of Determination of Cr 4+ :YAG Absorption Cross Sections Using Experimental Data of Transmission

open access: yesNonlinear Analysis, 2001
Mathematical modelling of nonlinear transmission of Cr4+:YAG crystals excited by Nd:YAG laser pulses of different duration are reported. Numerical simulation of transmission using a five-level scheme which included finite excitation lifetimes in Cr4+:YAG,
A. Dement’ev, R. Navakas
doaj   +1 more source

Electromagnetic Behavior of Cu and Ni Nanofilms in the X-band

open access: yesJournal of Aerospace Technology and Management, 2023
Currently, the presence of spurious microwave radiation is increasing in the environment, which has caused concern due to possible health problems in living beings and electromagnetic interference in electronic systems.
Vitor Fernando de Melo Gonçalves   +7 more
doaj  

A Simplified Method for the Evaluation of Floating-Body Motion Responses over a Sloping Bottom

open access: yesJournal of Marine Science and Engineering
Recently, many floating renewable energy platforms have been deployed in coastal regions, where sloping bottoms are an important factor when evaluating their safety. In this article, a simplified method coupling an eigenfunction matching method (EMM) and
Xiaolei Liu   +6 more
doaj   +1 more source

Comparison of two approaches to the design of interference optical elements on photonic crystal structures

open access: yesКомпьютерная оптика
Using examples of photonic crystal interference optical elements such as bends of waveguide structures, an intersection of three waveguides, a radiation input node, a Y-shaped logical gate NOT, and a logical gate NOT on a crystal with self-collimation ...
Yu.Yu. Krivosheeva   +2 more
doaj   +1 more source

The task of detecting inconspicuous flying objects based on recording changes in the radiation characteristics of the Starlink satellite network

open access: yesВестник Самарского государственного технического университета. Серия: Технические науки
This work is devoted to the detection of inconspicuous flying objects (unmanned aerial vehicles) by ground-based means. The analysis of traditional methods of solving the problem under consideration, based on the use of active radar, is carried out.
Vladimir N. Vorozheikin   +1 more
doaj   +1 more source

Application of method of separation of variables for analyzing floating breakwaters

open access: yesنشریه مهندسی دریا, 2016
In this article, a rectangular cross section breakwater in water of finite depth and infinite domain is studied using the separation of the variables method in regular, sinusoidal waves.
Esmaeel Masoodi, hamid Zeraatgar
doaj  

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