Results 51 to 60 of about 133,244 (304)

Simulation of main plasma parameters of a cylindrical asymmetric capacitively coupled plasma micro-thruster using computational fluid dynamics [PDF]

, 2015
Computational fluid dynamics (CFD) simulations of a radio-frequency (13.56 MHz) electrothermal capacitively coupled plasma (CCP) micro-thruster have been performed using the commercial CFD-ACE+ package. Standard operating conditions of a 10W, 1.5 Torr
Boswell, Roderick W., Charles, Christine, Greig, Amelia   +2 more
core   +2 more sources

Metastasis on pause: How dormant tumor cells stay hidden within the tumor microenvironment and evade immune surveillance

Molecular Oncology, EarlyView.
Dormant cancer cells can hide in distant organs for years, evading treatment and the immune system. This review highlights how signals from the surrounding tissue and immune environment keep these cells inactive or trigger their reawakening. Understanding these mechanisms may help develop therapies to eliminate or control dormant cells and prevent ...
Kanishka Tiwary, Jose Javier Bravo‐Cordero   +1 more
wiley   +1 more source

Overview of three-phase inverter topologies for distributed generation purposes [PDF]

, 2010
The increasing presence of single-phase distributed generators and unbalanced loads in the electric power system may lead to unbalance of the three phase voltages, resulting in increased losses and heating.
De Kooning, Jeroen, Degroote, Lieven, Meersman, Bart, Renders, Bert, Vandevelde, Lieven, Vandoorn, Tine   +5 more
core   +1 more source

Broken Symmetry and Coherence of Molecular Vibrations in Tunnel Transitions

, 2004
We examine the Breit-Wigner resonances that ensue from field effects in molecular single electron transistors (SETs). The adiabatic dynamics of a quantum dot elastically attached to electrodes are treated in the Born-Oppenheimer approach.
Dykhne, Alexander M., Rudavets, Alexander G.   +1 more
core   +3 more sources

The Breakdown of Alfven's Theorem in Ideal Plasma Flows [PDF]

, 2006
This paper presents both rigorous results and physical theory on the breakdown of magnetic flux conservation for ideal plasmas, by nonlinear effects. Our analysis is based upon an effective equation for magnetohydrodynamic (MHD) modes at length-scales $>\
Abraham, Alfvén, Ao, Arneodo, Axford, Bernard, Biskamp, Biskamp, Boldyrev, Boozer, Braginskii, Cadot, Celani, Chandrasekhar, Chaves, Constantin, Deam, Dere, Dryden, Duchon, Eyink, Eyink, Eyink, Eyink, Eyink, Friedlander, Frisch, Fung, Germano, Goldbart, Goldenfeld, Grauer, Grauer, Grauer, Greene, Gregory L. Eyink, Helmholtz, Hesse, Horbury, Hussein Aluie, Hörmander, Ilin, Kaneda, Kazantsev, Kestener, Kivotides, Kraichnan, Krause, Landau, Langer, Lau, Lau, Lazarian, Lazarian, Lazarian, Le Jan, Le Jan, Mandelbrot, Maron, McCumber, Meneveau, Mestel, Moffatt, Moffatt, Muzy, Müller, Newbower, Newcomb, Nicolleau, Onsager, Parker, Pearson, Politano, Politano, Priest, Richardson, Ruban, Schekochihin, Schindler, Schindler, Sreenivasan, Sreenivasan, Sreenivasan, Steenbeck, Stern, Sulem, Tassis, Villermaux, Vincenzi, Wilson, Wilson, Wilson, Young, Young, Zaikin, Zorawski   +95 more
core   +2 more sources

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

FEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon, Angéla Békesi, Latifa Kazzazy, Jázmin Mihály, Máté Varga, Beáta G. Vértessy, Kinga Nyíri   +6 more
wiley   +1 more source

Thermally Balanced DPWM Method With Neutral Point Voltage Balancing Capability for Single-Phase Five-Level T-Type NPC Inverters

IEEE Access
Discontinuous pulse width modulation (DPWM) is useful to improve the efficiency of a single-phase five-level T-type neutral-point-clamped (5LT-NPC) inverter and the reliability of the power devices.
Kyu-Jin Min, Ui-Min Choi
doaj   +1 more source

Smooth Switching Technique for Voltage Balance Management Based on Three-Level Neutral Point Clamped Cascaded Rectifier

Energies, 2016
This paper discussed the topology of in the three-level neutral point clamped cascaded rectifier (3LNPC-CR) for designing the Chinese Power Electronic Traction Transformer (PETT).
Xu Peng, Xiaoqiong He, Pengcheng Han, Aiping Guo, Zeliang Shu, Shibin Gao   +5 more
doaj   +1 more source

Redistribution of Synaptic Efficacy Supports Stable Pattern Learning in Neural Networks [PDF]

, 1999
Markram and Tsodyks, by showing that the elevated synaptic efficacy observed with single-pulse LTP measurements disappears with higher-frequency test pulses, have critically challenged the conventional assumption that LTP reflects a general gain increase.
Carpenter, Gail, Milenova, Boriana
core   +1 more source

Gamma radiation exposure of MCT diode arrays

, 2006
Investigations of electrical properties of long-wavelength infrared (LWIR) mercury cadmium telluride (MCT) arrays exposed to gamma-radiation have been performed.
F F Sizov, Gumenyuk-Sichevskaya J V, I O Lysiuk, J V Gumenjuk-Sichevska, Robinson H G, Rogalski A, S G Bunchuk, Sizov F F, Sizov F F, V V Zabudsky, Voitsekhovsky A V   +10 more
core   +1 more source