Results 81 to 90 of about 361,087 (295)

Phase characteristics of the superficial impedance of the plasma-like anisotropic environment in the mode of frequency modulated signals

Доклады Белорусского государственного университета информатики и радиоэлектроники, 2019
The analysis of the interaction of anisotropic plasma-type layer with electromagnetic waves in the mode of frequency modulated signals is made. The propagation of electromagnetic waves in anisotropic plasma-type layer conducted on the basis of studies of
V. F. Yanushkevich, E. Yu. Zayats
doaj  

Wideband finite difference time domain implementation of surface impedance boundary conditions for good conductors [PDF]

Surface impedance boundary conditions are used to reduce the solution volume during the analysis of scattering from lossy dielectric objects. In a finite difference solution, they also can be used to avoid using small cells, made necessary by shorter ...
Beggs, John H., Kunz, Karl S., Luebbers, Raymond J., Yee, Kane S.   +3 more
core   +1 more source

Investigation of sound propagation in a duct with a mean temperature gradient [PDF]

, 2014
This paper presents an analytical and numerical investigation of an impedance tube in the presence of a mean temperature gradient. Full Navier-Stokes simulation of the acoustic wave propagations through an impedance tube in the presence of a mean ...
Aygun, Haydar
core  

Impedance of a sphere oscillating in an elastic medium with and without slip

, 2006
The dynamic impedance of a sphere oscillating in an elastic medium is considered. Oestreicher's formula for the impedance of a sphere bonded to the surrounding medium can be expressed simply in terms of three lumped impedances associated with the ...
Abramowitz M., Andrew N. Norris, Stokes G. G., von Gierke H. E.   +3 more
core   +1 more source

COMP–PMEPA1 axis promotes epithelial‐to‐mesenchymal transition in breast cancer cells

Molecular Oncology, EarlyView.
This study reveals that cartilage oligomeric matrix protein (COMP) promotes epithelial‐to‐mesenchymal transition (EMT) in breast cancer. We identify PMEPA1 (protein TMEPAI) as a novel COMP‐binding partner that mediates EMT via binding to the TSP domains of COMP, establishing the COMP–PMEPA1 axis as a key EMT driver in breast cancer.
Konstantinos S. Papadakos, Gilar Gorji‐bahri, Lejla Gradjan, Julia Zajac, Kacper Gil, Yvonne Thokozile Nduku, Anna M. Blom   +6 more
wiley   +1 more source

Half-Space Sound Field Reconstruction Based on the Combination of the Helmholtz Equation Least-Squares Method and Equivalent Source Method

Sensors
In practical conditions, near-field acoustic holography (NAH) requires the measurement environment to be a free sound field. If vibrating objects are located above the reflective ground, the sound field becomes non-free in the presence of a reflecting ...
Laixu Jiang, Yingqi Xi, Yingying Hu, Guo Wang, Jingqiao Liu   +4 more
doaj   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

Molecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau, Leonor Garcia, Hugo Arnold, Antonija Hanžek, Maialen Arrieta, Laurent R Gauthier, Christine Granotier‐Beckers, François D Boussin, Amaury Herbet, Marie Hautière, Valentin Asei‐Ceschino, Clémentin Jacques, Laura Brard, Thomas Harnois, Valérie Coronas, Bruno Constantin, Aurélien Chatelier, Jean Chemin, Serge Urbach, Martial Seveno, Szimonetta Hideg, Chantal Ripoll, Kasandra Aguilar‐Cázarez, Min Zheng, Guo‐Hao Huang, Sheng‐Qing Lv, Lei Zhang, Philippe Rondard, Laurent Prezeau, Jean‐Philippe Pin, Hugues Duffau, Luc Bauchet, Valérie Rigau, Franck Denat, Charles Truillet, Didier Boquet, Jean‐Philippe Hugnot   +36 more
wiley   +1 more source

METHOD OF ESTIMATION FREQUENCY PROPERTIES OF THE PREINSULATED PIPES FOR MONITORING THE STATUS OF HEATING NETWORKS

Приборы и методы измерений, 2015
Proposed approximate method for the preliminary assessment of the frequency properties unadapted guiding system for monitoring the status of the organization of preinsulated pipes. Guide system elements  formed  tubes  placed  in  a  lossy  medium  (soil)
E. N. Taletskiy
doaj  

Influence of Source Propagation Direction and Shear Flow Profile in Impedance Eduction of Acoustic Liners [PDF]

The acoustic impedance of liners is a key parameter for their design, and depends on the flow conditions, i.e., the sound pressure level and the presence of a grazing flow. The surface impedance of a locally reacting liner is defined as a local intrinsic
Jones, M. G., Mery, F., Nark, D. M., Piot, E., Roncen, R., Simon, F.   +5 more
core   +1 more source

Surface Structural Disordering in Graphite upon Lithium Intercalation/Deintercalation

, 2010
We report on the origin of the surface structural disordering in graphite anodes induced by lithium intercalation and deintercalation processes. Average Raman spectra of graphitic anodes reveal that cycling at potentials that correspond to low lithium ...
Hardwick, Laurence J., Kostecki, Robert, Sethuraman, Vijay A., Srinivasan, Venkat   +3 more
core   +2 more sources