Results 61 to 70 of about 2,323,028 (381)
Advanced Functional Materials, EarlyView.This study introduces a self‐powered real‐time ionic TENG temperature sensing system for flexible thermal management with high and real‐time temperature monitoring. Ionic liquids and elastomer chains are investigated under temperature via electrochemical and physical analysis, resulting in enhancing thermal sensitivity and output performance on TENG ...
Hee Jae Hwang +9 more
wiley +1 more source
ELECTROSTATIC ION THRUSTERS - TOWARDS PREDICTIVE MODELING
Acta Polytechnica, 2015 For satellite missions, thrusters have to be qualified in large vacuum vessels to simulate space environment. One caveat of these experiments is the possible modification of the beam properties due to the interaction of the energetic ions with the ...
Julia Duras +5 more
doaj +1 more source
International Journal of Multiphysics, 2022 An electrostatic ion thruster, modelled on Busek’s BIT-3 [5], is simulated numerically using the open-source software “Starfish”. It is assumed that the thruster is in vacuum conditions propelling a CubeSat in low Earth orbit.
I Gomez, C Toomer
doaj +1 more source
A new ion–ion plasma thruster with an annular geometry
The European Physical Journal D, 2017 The concept of ion-ion plasma thruster relies on a magnetic filter to create an electron-free plasma in the ion current extraction region. However, experiments and computer simulations show that a transverse magnetic field makes the discharge asymmetrical due to electron drift and instabilities in the region of strong magnetic field. The drift drives a
Mazouffre, Stéphane, Renaud, Denis
openaire +3 more sources
Ion Collection in Hall Thruster Plumes [PDF]
Journal of Propulsion and Power, 2006 HE Hall effect thruster’s (HETs) combination of high specific impulse, efficiency, and thrust density has increased its popularity for use as spacecraft propulsion. Currently, the widespread use of HETs is hindered by the limited understanding of plume interaction with the spacecraft.
Walker, Mitchell L. R. +2 more
openaire +3 more sources
Synthetic Strategy for mRNA Encapsulation and Gene Delivery with Nanoscale Metal‐Organic Frameworks
Advanced Functional Materials, EarlyView.This research utilizes the ZIF‐8 for the encapsulation and intracellular delivery of nucleic acids, specifically mRNA, for applications in gene delivery. Integrating PEI addresses the issue of mRNA leakage from ZIF‐8, resulting in the delivery and expression of green fluorescent protein (GFP) in vitro and firefly luciferase in vivo.
Harrison Douglas Lawson +12 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth +8 more
wiley +1 more source
Substrate Engineering for Durable Omniphobic Liquid‐Like Surfaces
Advanced Functional Materials, EarlyView.The significant yet less investigated role of substrates in determining the liquid‐repellency and mechanical durability of liquid‐like surfaces (LLSs) is explored. Thick and crack‐free sol–gel silica intermediary layers are developed that can smoothen substrate asperity roughness even at the micron scale, enabling omniphobic polydimethylsiloxane‐based ...
Tao Wen +6 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp +7 more
wiley +1 more source
EPJ Techniques and Instrumentation, 2021 We present a non-invasive approach for determining plasma parameters such as electron temperature and density inside a radio-frequency ion thruster (RIT) using optical emission spectroscopy (OES) in conjunction with principal component analysis (PCA ...
Benny T. Nauschütt +3 more
doaj +1 more source