Results 51 to 60 of about 6,525,998 (141)

Vacuum Thermal Evaporation for OLEDs: Fundamentals, Optimization, and Implications for Perovskite LEDs

Advanced Electronic Materials, Volume 11, Issue 19, November 18, 2025.
Vacuum thermal evaporation (VTE) is the dominant method for manufacturing high‐performance small‐molecule organic light‐emitting diodes (OLEDs). Its mature application in OLEDs offers valuable guidance for emerging perovskite light‐emitting diodes (PeLEDs).
Chenxi Shen, Ying Hu, Siqian Zhou, Ziquan He, Junchao Han, Daquan Zhang, Lei Lu, Xiaoliang Mo, Qianpeng Zhang   +8 more
wiley   +1 more source

Application limits of molecular gas film lubrication equation against surface roughness (The characteristics and the effect of transverse flow for shear flow)

Nihon Kikai Gakkai ronbunshu, 2022
The effects of surface roughness on the molecular gas lubrication characteristics have been studied for defining the application limits of Molecular gas film lubrication (MGL) equation against the roughness.
Jun-ichi ICHIHARA
doaj   +1 more source

Can Spacecraft‐Borne Contamination Compromise Our Understanding of Lunar Ice Chemistry?

Journal of Geophysical Research: Planets, Volume 130, Issue 11, November 2025.
Abstract Recent detections of water ice in the permanently shadowed regions (PSRs) at the lunar poles have reignited scientific and commercial interest in the exploration of Earth's closest neighbor. The frigid temperatures in PSRs operate as cold traps for volatiles and may represent large reservoirs of materials, including water ice and prebiotic ...
Francisca S. Paiva, Silvio Sinibaldi
wiley   +1 more source

Pantera: A PIC-MCC-DSMC software for the simulation of rarefied gases and plasmas

SoftwareX
We present Pantera, an open-source, parallel, particle-based code for the simulation of rarefied gases and plasmas. The code uses the Particle-in-Cell (PIC) method for the solution of ionized flows in the electrostatic approximation, coupled to the ...
P. Parodi, S. Boccelli, F. Bariselli, T.E. Magin   +3 more
doaj   +1 more source

Carbon Fiber Oxidation in 4D

Advanced Materials, Volume 37, Issue 42, October 23, 2025.
The oxidation of porous carbon fiber heat shield material at high temperatures is imaged using time‐resolved synchrotron X‐ray microtomography. Resolving the interplay between species diffusion and carbon‐oxygen reaction rate reveals spatially and temporally varying degradation across oxidation regimes, with profound implications for in‐depth material ...
Benjamin M. Ringel, Federico Semeraro, Joseph C. Ferguson, Harold S. Barnard, Bruno Dias, Christian M. Schlepütz, Edward S. Barnard, Sam Schickler, Kara Levy, Shawn Shacterman, Talia Benioff‐White, Julian Davis, Alastair A. MacDowell, Dilworth Y. Parkinson, Francesco Panerai   +14 more
wiley   +1 more source

Enceladus Water Plume Modeling Using DSMC

Journal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.
Abstract This study investigates the water plumes of Saturn's moon, Enceladus, using Direct Simulation Monte Carlo (DSMC) modeling to analyze venting dynamics and plume structures. Building on prior research, we employ a parametrized DSMC approach to model water vapor and ice particle flows, leveraging Cassini spacecraft data from instruments such as ...
A. Mahieux, D. B. Goldstein, P. L. Varghese, L. M. Trafton, G. Portyankina, L. W. Esposito, M. E. Perry, J. H. Waite, B. S. Southworth, S. Kempf   +9 more
wiley   +1 more source

Detection of ammonia gas by Knudsen thermal force in micro gas actuator

Case Studies in Thermal Engineering, 2018
Direct Simulation Monte Carlo (DSMC) method is applied to evaluate the performance of a new micro gas sensor (MIKRA) for mass analysis of ammonia in the rarefied gas.
Ahmadreza Mahyari, M. Barzegar Gerdroodbary, M. Mosavat, D.D. Ganji   +3 more
doaj   +1 more source

Icarus: A 2D direct simulation Monte Carlo (DSMC) code for parallel computers. User`s manual - V.3.0 [PDF]

, 1996
Icarus is a 2D Direct Simulation Monte Carlo (DSMC) code which has been optimized for the parallel computing environment. The code is based on the DSMC method of Bird and models from free-molecular to continuum flowfields in either cartesian (x, y) or axisymmetric (z, r) coordinates.
Bartel, T., Plimpton, S., Johannes, J., Payne, J.   +3 more
openaire   +2 more sources

Neutrals Ejected From Io's Plasma/Atmosphere Interaction Region by Physical Chemistry Processes

Journal of Geophysical Research: Space Physics, Volume 130, Issue 8, August 2025.
Abstract Neutrals ejected from Io's atmosphere are the source of many important structures of the jovian magnetosphere: they feed giant neutral clouds, which extend along Io's orbit and nebulae, which extend beyond 500 jovian radii. The neutral loss rate is casually claimed to be ∼1 ton/s, but the processes leading to this loss, their quantitative ...
V. Dols
wiley   +1 more source

Limits on the Efficacy of Wave‐Particle Interaction on the Energization and Transport of Atomic and Molecular Heavy Ionospheric Ions

Journal of Geophysical Research: Space Physics, Volume 130, Issue 4, April 2025.
Abstract Ionospheric molecular ions, such as N2+ ${\mathrm{N}}_{2}^{+}$, NO+, and O2+ ${\mathrm{O}}_{2}^{+}$, have been observed in Earth's high‐altitude ionosphere and the magnetosphere by several spacecraft missions. Their presence not only indicates that they obtain sufficient energy through effective energization mechanisms, predominantly during ...
Mei‐Yun Lin, Raluca Ilie, Alex Glocer
wiley   +1 more source