Results 51 to 60 of about 33,101 (293)
Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study
Advanced Engineering Materials, EarlyView.This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud +7 more
wiley +1 more source
Fault Tolerant Control of Satellite Orbital Maneuvering Based on Virtual Actuator [PDF]
علوم، فناوری و کاربردهای فضاییIn this article, a fault tolerant control based on a virtual actuator is used for the maneuvering of low earth orbit satellites that are subject to the loss of the effectiveness and additive actuator faults as well as natural disturbances such as ...
Masoud Dehnad +2 more
doaj +1 more source
Review of Plasma-Induced Hall Thruster Erosion
Applied Sciences, 2020 The Hall thruster is a high-efficiency spacecraft propulsion device that utilizes plasma to generate thrust. The most common variant of the Hall thruster is the stationary plasma thruster (SPT).
Nathan P. Brown, Mitchell L. R. Walker
doaj +1 more source
Advanced Engineering Materials, EarlyView.This article presents the NFDI‐MatWerk Ontology (MWO), a Basic Formal Ontology‐based framework for interoperable research data management in materials science and engineering (MSE). Covering consortium structures, research data management resources, services, and instruments, MWO enables semantic integration, Findable, Accessible, Interoperable, and ...
Hossein Beygi Nasrabadi +4 more
wiley +1 more source
Concept Study of Radio Frequency (RF) Plasma Thruster for Space Propulsion [PDF]
INCAS Bulletin, 2016 Electric thrusters are capable of accelerating ions to speeds that are impossible to reach using chemical reaction. Recent advances in plasma-based concepts have led to the identification of electromagnetic (RF) generation and acceleration systems as ...
Anna-Maria Theodora ANDREESCU +4 more
doaj +1 more source
, 1995 " A satellite thruster system capable of creating a high velocity plasma jet is disclosed. The plasma accelerator, or ""railthruster,"" features a high energy current pulse source and a geometrically configured coaxial or parallel dual-rail ignitor system for higher velocity, and thus more fuel efficient, satellite attitude control. A ratio of a length
William F. Weldon, Steven P. Nichols
openaire +2 more sources
Transfer of Energy and Momentum Between Magnetoactive Surface Microstructure and a Solid Object
Advanced Engineering Materials, EarlyView.We demonstrate that magnetoactive multilamellar arrays subjected to a rotating magnetic field can function as platforms for controlled transport of physical objects. Through systematic experimental investigation, we elucidate the underlying physical mechanisms determining the upper limit of the achievable transportation speed in such magnetic “conveyor‐
Arne Geldof +9 more
wiley +1 more source
Havacılık ve Uzay Teknolojileri Dergisi, 2020 The script in this paper describes the use of propellant for plasma thrusters based on electrostatic accelerator. The generation and control of plasma is essential for the ion thrusters.
Alexander Norbach
doaj
A review of the literature on the issues and roles of E-Learning in UAE higher education [PDF]
, 2019 E-Learning is becoming a popular delivery method across various universities and colleges in UAE as the region is experiencing a rapid growth of e-Learning in higher education.
Abd Hamid, Nor Aziati, Alblooshi, Saeed
core +1 more source
Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma
Advanced Engineering Materials, EarlyView.The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie +4 more
wiley +1 more source