Results 41 to 50 of about 4,543,511 (303)

Formation of Surface Profile in Controlled Pulse Modes of Electrolytic-Plasma Treatment

Механика машин, механизмов и материалов
To improve the efficiency of electrolytic-plasma treatment methods, modes based on the use of controlled pulses have been developed. The modes are implemented by alternating high-voltage pulses corresponding to the electrolytic-plasma region and current ...
Aleksandr Yu. Korolyov, Vyacheslav A. Tomilo, Vladimir S. Niss   +2 more
doaj   +1 more source

Analytical–Numerical Solution for the Skin and Proximity Effects in Two Parallel Round Conductors

Energies, 2019
This paper describes an analytical-numerical method for the skin and proximity effects in a system of two parallel conductors of circular cross section—a system very frequently encountered in various applications.
Paweł Jabłoński, Tomasz Szczegielniak, Dariusz Kusiak, Zygmunt Piątek   +3 more
doaj   +1 more source

DELP Treatment on Vision and Retinal Microcirculation in Patients With Acute Ischemic Stroke: Report of Five Cases and Literature Review

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background The delipid extracorporeal lipoprotein filter from plasma (DELP) treatment can effectively reduce blood lipid, increase blood flow, and improve neurological deficits in patients with acute ischemic stroke (AIS). However, its effect on vision and retinal microcirculation in stroke patients has never been reported.
Ning Li, Ronghua Hong, Hua You, Feiping Xu, Qingjun Zhang, Yiwen Lin, Yuting Su, Danmei Lan, Lingjing Jin, Junhui She   +9 more
wiley   +1 more source

Description of spin transport and precession in spin-orbit coupling systems and a general equation of continuity

, 2007
By generalizing the usual current density to a matrix with respect to spin variables, a general equation of continuity satisfied by the density matrix and current density matrix has been derived.
Chengshi Liu, E. I. Rahsba, E. I. Rahsba, E. I. Rashba, H. Haug, Hua-Tong Yang, L. P. Kadanoff, M. I. D’yakonov, M. I. D’yakonov, Y. Kato   +9 more
core   +1 more source

A Comparative Study of Cerebral Oxygenation During Exercise in Hemodialysis and Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou, Konstantina Dipla, Danai Faitatzidou, Fotini Iatridi, Areti Georgiou, Artemios Karagiannidis, Erasmia Sampani, Chrysostomos Dimitriadis, Aggelos Koutlas, Andreas Zafeiridis, Pantelis Sarafidis   +10 more
wiley   +1 more source

Simulation of Single-event Irradiation Damage Effects on GaN-based LEDs

Yuanzineng kexue jishu
Light-emitting diodes (LEDs) as keydevices in the fields of space exploration and nuclear technology hold broad application prospects. However, in space applications, LEDs face challenges from the radiation environment, which poses a serious threat to ...
JIANG Rongyu1, WANG Zujun2, YANG Xin1, CHEN Minglei3, WANG Pensheng2
doaj   +1 more source

PARAMETERS AND FACTORS OF PROCESSING THROUGH COMPLEX EROSION [PDF]

Fiabilitate şi Durabilitate, 2017
The process of processing through complex erosion is influenced by a large number of parameters and factors, acting in close interdependence and influencing each other in order to achieve the stability of the process of processing and the achievement ...
Alin NIOAŢĂ, Florin CIOFU
doaj  

Numerical Investigation of the Effect of Gas Diffusion Layer with Semicircular Prominences on Polymer Exchange Membrane Fuel Cell Performance and Species Distribution [PDF]

Journal of Renewable Energy and Environment, 2015
A three-dimensional computational fluid dynamics model of a proton exchange membrane fuel cell (PEMFC) with both gas distribution flow channels and Membrane Electrode Assembly (MEA) is developed.
Nima Ahmadi, Sajad Rezazadeh, Abdolrahman Dadvand, Iraj Mirzaee   +3 more
doaj   +1 more source

Conductance characteristics of current-carrying d-wave weak links [PDF]

, 2009
The local quasiparticle density of states in the current-carrying d-wave superconducting structures was studied theoretically. The density of states can be accessed through the conductance of the scanning tunnelling microscope.
Kulik O., Kulik O., Omelyanchouk A. N., S. N. Shevchenko   +3 more
core   +2 more sources

Ultrasound Current Source Density Imaging [PDF]

IEEE Transactions on Biomedical Engineering, 2008
Surgery to correct severe heart arrhythmias usually requires detailed maps of the cardiac activation wave prior to ablation. The pinpoint electrical mapping procedure is laborious and limited by its spatial resolution (5-10 mm). We propose ultrasound current source density imaging (UCSDI), a direct 3-D imaging technique that potentially facilitates ...
Ragnar, Olafsson, Russell S, Witte, Sheng-Wen, Huang, Matthew, O'Donnell   +3 more
openaire   +2 more sources