Results 71 to 80 of about 269,980 (281)
AIP Advances, 2016 The luminescence evolution phenomena from alumina ceramic surface in vacuum under high voltage of direct and alternating current are reported, with the voltage covering a large range from far below to close to the flashover voltage. Its time resolved and
Guo-Qiang Su +6 more
doaj +1 more source
Metrology and Measurement Systems, 2020 Scanning electron microscopy (SEM) is a perfect technique for micro-/nano-object imaging [1] and movement measurement [2, 3] both in high and environmental vacuum conditions and at various temperatures ranging from elevated to low temperatures.
Orłowska Karolina +10 more
doaj +1 more source
Advanced Functional Materials, EarlyView.In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund +6 more
wiley +1 more source
Metamaterial-Inspired Vacuum Electron Devices and Accelerators
IEEE Transactions on Electron Devices, 2019 Metamaterials (MTMs) are structured materials with subwavelength features that can be engineered to have some unique properties not found in nature, such as negative refractive index, reversed Doppler effect, and reversed Cherenkov radiation. Based on these novel MTMs, several important research groups have made great attempts to develop novel MTM ...
Zhaoyun Duan +7 more
openaire +1 more source
An Underappreciated Radiation Hazard from High Voltage Electrodes in Vacuum
, 2016 The use of high voltage (HV) electrodes in vacuum is commonplace in physics laboratories. In such systems, it has long been known that electron emission from an HV cathode can lead to bremsstrahlung X-rays; indeed, this is the basic principle behind the ...
DeMille, David +8 more
core
Synthesis and characterization of bulk and thin film antimony-selenium phase change alloys
, 2008 Phase change alloys have recently gained increasing attention due to their application in developing phase change random memory (PRAM) devices, as Flash memory based devices are rapidly approaching their technological limitations.
Bandaru, Nirup
core +1 more source
Analyzing Electronic Excitations and Exciton Binding Energies in Y6 Films
Advanced Functional Materials, EarlyView.The Y6 molecule is used for increasing the efficiency of organic solar cells. The exciton binding energy is calculated for ensembles of Y6 molecules that are representative of the typically used films. The calculations show that the excitons typically spread out over many molecules.
Sahar Javaid Akram +2 more
wiley +1 more source
, 2017 One of the fundamental problems is the understanding of physics of electrostatic and electromagnetic fluctuations in multi-scale plasma turbulence. Especially so, in continuously connected plasma regions with varying degree of magnetization.
Chattopadhyay, P. K. +4 more
core +1 more source
Advanced Functional Materials, EarlyView.The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal +10 more
wiley +1 more source
Electron beam evolution in high-frequency electronic vacuum devices
Izvestiya VUZ. Applied Nonlinear Dynamics, 1995 Properties of electron beam, focusing by uniform or periodic magnetic fields, are investigated in the case when initial state of beam is quite different from equilibrium. It is shown, that nonlinear space charge field provides conditions for beam’s selforganisation in spite of chaotic oscillations of individual electrons.
Valentina Zhurawleva +3 more
openaire +1 more source