Results 21 to 30 of about 2,928,100 (241)

Far Off Equilibrium Dynamics in Clusters and Molecules

Frontiers in Physics, 2020
This brief review illustrates on a few typical applications fully fledged dynamical simulations of finite electronic systems (atoms, molecules, clusters) using time-dependent density-functional theory (TDDFT).
Phuong Mai Dinh, Marc Vincendon, Jordan Heraud, Eric Suraud, Paul-Gerhard Reinhard   +4 more
doaj   +1 more source

Field-emission electron gun for a MEMS electron microscope

Microsystems & Nanoengineering, 2021
This article presents a field-emission electron gun intended for use in a MEMS (microelectromechanical system) electron microscope. Its fabrication process follows the technology of a miniature device under development built from silicon electrodes and ...
Michał Krysztof
doaj   +1 more source

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

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

Generalized Electron Emission Theory for One-Dimensional Conducting Materials

Applied Sciences
This research focuses on exploring generalized electron emissions in one-dimensional conducting materials, specifically examining field emission and thermionic emission. Additionally, this study investigates one-dimensional thermal radiation. The current
Heetae Kim, Chang-Soo Park, Soon Jae Yu
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

Mutant p53R273H disrupts PDPK1 homodimerization and contributes to PDPK1 activation

Molecular Oncology, EarlyView.
How mutant p53R273H drives AKT signaling is unclear. We show that p53R273H, but not wild‐type, directly binds PDPK1 via a mutation‐dependent conformational change. This interaction disrupts inhibitory PDPK1 homodimerization and enhances AKT phosphorylation.
Mei Chee Lim, Alvin Kunyao Guo, Yoko Itahana, Srinivasaraghavan Kannan, Valerie Goh, Mingmin Ong, Terina Yan Wen Tay, Weiying Ye, Sabhashina Radha Krishnan, Jun Nishiyama, Chandra S Verma, Koji Itahana   +11 more
wiley   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source

Runaway Electrons in Gas Discharges: Insights from the Numerical Modeling

Plasma
This paper reviews the state of the art of our understanding of the mechanisms of runaway electron generation in pressurized gases from the numerical modeling perspective.
Dmitry Levko
doaj   +1 more source