Results 31 to 40 of about 20,239 (157)

Comparaison des modèles numériques tridimensionnels de diffraction-radiation Comparison of Three-Dimentional Numerical Diffraction-Radiation Models

open access: yesOil & Gas Science and Technology, 2006
Le but de cet article est de présenter le bilan des études effectuées jusqu'à présent sur le problème de la diffraction-radiation. II fait suite au séminaire qui a eu lieu sur ce sujet en avril 1977 à Paris et qui a réuni les principaux chercheurs ...
Susbielles G., Berhault C.
doaj   +1 more source

Study the effect of gamma radiation on the some properties of glass and glass-ceramic immobilize nuclear waste

open access: yesIraqi Journal of Physics, 2019
Vitrifications process one of the important methods to immobilize nuclear waste.  In this research nuclear waste (Strontium Oxides) with molecular weight (5%) was immobilized by vitrification methods in two types of borosilicate glass (c-type) which are
Asia H. Al-Mashhadani
doaj   +1 more source

Multi-DOF WEC Performance in Variable Bathymetry Regions Using a Hybrid 3D BEM and Optimization

open access: yesEnergies, 2019
In the present work a hybrid boundary element method is used, in conjunction with a coupled mode model and perfectly matched layer model, for obtaining the solution of the propagation/diffraction/radiation problems of floating bodies in variable ...
Markos Bonovas   +2 more
doaj   +1 more source

Hydrodynamic Efficiency of a Wave Energy Converter in Front of an Orthogonal Breakwater

open access: yesJournal of Marine Science and Engineering, 2021
In the present study, the hydrodynamic efficiency of a cylindrical wave energy converter (WEC) of vertical symmetry axis and arranged in front of a reflecting orthogonal breakwater is explored.
Dimitrios N. Konispoliatis   +1 more
doaj   +1 more source

Mean Drift Forces on Vertical Cylindrical Bodies Placed in Front of a Breakwater

open access: yesFluids, 2020
This paper presents a numerical and experimental investigation of the second-order steady horizontal and vertical drift forces acting on cylindrical bodies in regular waves. The examined bodies are either kept restrained in front of a vertical breakwater
Dimitrios Konispoliatis   +1 more
doaj   +1 more source

EXCITATIONS OF WAVEGUIDES AND CAVITIES BY ELECTRON FLOWS [PDF]

open access: yesРадиофизика и электроника, 2015
The equations of excitation of waveguides and resonators by foreign sources are used for solving problems in electrodynamics, microwave and terahertz electronics.
A. A. Kurayev, V. D. Yeryomka, A. O. Rak
doaj   +1 more source

REFOS: A Renewable Energy Multi-Purpose Floating Offshore System

open access: yesEnergies, 2021
The present paper deals with the development of a multi-purpose floating tension leg platform (TLP) concept suitable for the combined offshore wind and wave energy resources exploitation, taking into account the prevailing environmental conditions at ...
Dimitrios N. Konispoliatis   +7 more
doaj   +1 more source

Perspectives of XRF and XANES Applications in Cryospheric Sciences Using Chinese SR Facilities

open access: yesCondensed Matter, 2018
As an important part of the climate system, the cryosphere, can be studied with a variety of techniques based on laboratory-based or field-portable equipment in order to accumulate data for a better understanding of this portion of the Earth’s ...
Wei Xu   +5 more
doaj   +1 more source

Linear diffraction and radiation theory of water waves by a truncated vertical circular cylinder with heave plate in deep and shallow drafts

open access: yesInternational Journal of Naval Architecture and Ocean Engineering
A first-order analytical theory on a truncated and surface-piercing vertical circular cylinder with a circular plate mounted at the bottom of the cylinder was generalized to solve the linear wave diffraction and radiation problems based on potential flow
Seung-Yoon Han   +3 more
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  

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