Results 21 to 30 of about 390,595 (315)

THE EFFECT OF LOW TEMPERATURES ON ENZYME SYSTEM OF THE CELLS OF THE FRUIT AND VEGETABLE RAW MATERIALS

Современная наука и инновации, 2022
The article discusses one of the key issues that affect the duration of storage of fruit and vegetable raw materials - the choice of a temperature mode of storage, confirmed the experimental data taking into account the changes of the thermophysical ...
Nicholay G. Scheglov
doaj  

DIGITAL APPROACH TO THERMIONIC EMISSION CURRENT TO VOLTAGE CONVERSION FOR HIGH-VOLTAGE SOURCES OF ELECTRONS

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2022
The thermionic emission current is used in many vacuum devices such as evaporators, rare gas excimers, or electron beam objects for high-energy physics. The stability of the thermionic emission current is a very important requirement for the accuracy of
Bartosz Kania
doaj   +1 more source

Fabrication of Stable Carbon Nanotube Cold Cathode Electron Emitters with Post-Growth Electrical Aging

Micromachines, 2018
We fabricated carbon nanotube (CNT) cold cathode emitters with enhanced and stable electron emission properties and long-time stability with electrical aging as a post-treatment.
Jung Hyun Kim, Jung Su Kang, Kyu Chang Park   +2 more
doaj   +1 more source

Discrete electron emission

Journal of Vacuum Science & Technology B
Analysis of space-charge effects on electron emission typically makes some assumption of continuity and smoothness, whether this is continuity of charge as in the classical derivation of the Child–Langmuir current or the mean-field approximation used in particle-in-cell simulations.
A. Jónsson, K. Torfason, A. Manolescu, Á. Valfells   +3 more
openaire   +2 more sources

Low secondary electron yield engineered surface for electron cloud mitigation [PDF]

, 2014
Secondary electron yield (SEY or δ) limits the performance of a number of devices. Particularly, in high-energy charged particle accelerators, the beam-induced electron multipacting is one of the main sources of electron cloud (e-cloud) build up on the ...
Oleg B. Malyshev, Zolotovskaya, Svetlana A.; id_orcid, Valizadeh, Reza, W. Allan Gillespie, Amin Abdolvand, Malyshev, Oleg B., Reza Valizadeh, Gillespie, W. Allan, Sihui Wang, Wang, Sihui, Svetlana A. Zolotovskaya, Abdolvand, Amin, Zolotovskaya, Svetlana, Abdolvand, Amin; id_orcid, Malyshev, Oleg   +14 more
core   +1 more source

Broadband Electromagnetic Emission from PZT Ferroelectric Ceramics after Shock Loading

Medžiagotyra, 2013
It was experimentally registered pulsed electromagnetic (EM) radiation in frequency range higher than television one using wideband horns with coaxial and waveguide outputs.
Fiodoras ANISIMOVAS, Steponas AŠMONTAS, Oleg KIPRIJANOVIČ, Andrius MANEIKIS, Bonifacas VENGALIS   +4 more
doaj   +1 more source

Laboratory astrophysics : investigation of planetary and astrophysical maser emission

, 2013
This paper describes a model for cyclotron maser emission applicable to planetary auroral radio emission, the stars UV Ceti and CU Virginus, blazar jets and astrophysical shocks.
Ronald K, Phelps, A.D.R., Phelps, Alan, Kellett BJ, McConville SL, Phelps ADR, Speirs DC, Ronald, Kevin, McConville, S.L., Cross, Adrian, Cairns RA, Speirs, D.C., Cairns, R Alan, Cross, A.W., Cross AW, Kellett, Barry, McConville, Sandra, Cairns, R.A., Bingham, Robert, Vorgul I, Vorgul, Irena, Kellett, B.J., Ronald, K., Bingham R, Spiers DC, Vorgul, I., Speirs, David, Bingham, R.   +27 more
core   +1 more source

Electron Trajectories and Critical Current in a Two-Dimensional Planar Magnetically Insulated Crossed-Field Gap

IEEE Access
The critical current in a one-dimensional (1D) crossed-field gap is defined by the transition from a cycloidal flow to a near-Brillouin (nB) state characterized by electron flow orthogonal to both the electric and magnetic fields and uniform virtual ...
Xiaojun Zhu, Jack K. Wright, N. R. Sree Harsha, Jim Browning, Allen L. Garner   +4 more
doaj   +1 more source

Spectra of Low Energy Electrons Emitted in the Interaction of Slow Ne⁺ Ions with Mg Surfaces

Surfaces, 2023
We measured spectra of low energy electrons emitted in the interaction of singly charged Ne+ ions with the Mg surface at incident ion energies ranging from 50 eV to 4 keV.
Pierfrancesco Riccardi, Catherine A. Dukes   +1 more
doaj   +1 more source

An interferometer experiment to explore the aspect angle dependence of stimulated electromagnetic emission spectra [PDF]

, 2005
International audienceWhen the Earth's ionosphere is irradiated by a radiofrequency (RF) electromagnetic wave of sufficiently high power density and tuned to match a natural E- or F-region plasma frequency, ionospheric magnetoionic wave modes may be ...
Khudukon, B. Z., Rietveld, Michael T., Yurik, R.Yu, Brekke, A., Belyey, Tereshchenko, Tereshchenko, E., Khudukon, B., Rietveld, M., Hoz, C. La, Belyey, Vasyl, Tereshchenko, E.D., Hagfors, Yurik, R. Yu., Khudukon, Yu. Yurik, Heinselman, C., Grill, Brekke, Belyey, V., Isham, B., Rietveld, Hagfors, T., Heinselman, Brekke, Asgeir, Rietveld, M. T., La Hoz, C., Isham, null La Hoz, Grill, M., Yurik, Yu., null null, Yurik, R. Yu., Yurik, R., La Hoz, Cesar, Tereshchenko, E. D., La Hoz   +36 more
core   +1 more source