Results 21 to 30 of about 286,943 (345)

Accelerated Discovery‐to‐Unveiling of High‐Performance and Affordable Ammonia Electrode Process by Human–Machine Collaboration Framework

Angewandte Chemie, EarlyView.
By employing dimensionally reduced reaction descriptors, a human–machine collaboration framework for efficient electrochemical nitrate reduction to NH3 electrocatalysts screening is established and drastically shorten the discovery timeframe. A new kinetic model is established in combination with a rotating ring‐disk electrode, unveiling the pivotal ...
Yingying Cheng, Masaki Takeguchi, Abraham Castro Garcia, Ken Sakaushi   +3 more
wiley   +2 more sources

Research on nanosatellite thermal cycling test applicability

MATEC Web of Conferences, 2017
In order to verify the spacecraft performance in extreme temperature and vacuum, and to screen spacecraft early defect, generally spacecraft TV (Thermal Vacuum) test should be carried out before launch.
Li Xiyuan, Yang Xiaoning, Shang Yonghong, Bi Yanqiang, Wang Jing, Lin Guiping   +5 more
doaj   +1 more source

Relativistic analysis of the LISA long range optical links [PDF]

, 2005
The joint ESA/NASA LISA mission consists in three spacecraft on heliocentric orbits, flying in a triangular formation of 5 Mkm each side, linked by infrared optical beams.
Bertrand Chauvineau, H. S. Ruse, H. S. Ruse, J. L. Synge, J. L. Synge, Jean-Yves Vinet, Sophie Pireaux, Tania Regimbau   +7 more
core   +3 more sources

Thermal Characteristic of Novel Insulation Materials Designed for Solar Simulator

Energies, 2022
The solar simulator is an important device for simulating solar irradiation in cold black and vacuum environments and has a wide range of application prospects.
Wenjing Ding, Ying Zhou, Miao Gu, Jie Gong, Jinghao Xu   +4 more
doaj   +1 more source

Precise Model for Small-Body Thermal Radiation Pressure Acting on Spacecraft [PDF]

, 2017
A precise representation of small-body surface thermal radiation pressure effects acting on orbiting spacecraft is discussed. The proposed framework takes advantage of a general Fourier series expansion to compute small-body surface thermal radiation ...
Hesar, Siamak G., McMahon, Jay W., Rozitis, Benjamin, Scheeres, Daniel J.   +3 more
core   +1 more source

An Analytical Method for Solar Heat Flux in Spacecraft Thermal Management Under Multidimensional Pointing Attitudes

Energies
In order to provide a theoretical basis for the thermal analysis and management of spacecraft/payload interstellar pointing attitudes, which are used for inter-satellite communication, this paper develops an analytical method for solar heat flux under ...
Xing Huang, Tinghao Li, Hua Yi, Yupeng Zhou, Feng Xu, Yatao Ren   +5 more
doaj   +1 more source

Active control of spacecraft charging on ATS-5 and ATS-6 [PDF]

, 1977
Effects on spacecraft ground potential of active emission of charged particles are being investigated through experiments using the ATS-5 and ATS-6 spacecraft.
Bartlett, R. O., Deforest, S. E., Purvis, C. K.   +2 more
core   +1 more source

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

Advanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan, Thomas D. Small, Gregory F. Metha, Mahmoud Adel Hamza, Thomas J. O'Dea, Yideng Shen, Cameron J. Shearer   +6 more
wiley   +1 more source

Research of the Technology and Application of 3D Model Based Assembly Structural Process Design for Spacecraft

MATEC Web of Conferences, 2016
In order to implement spacecraft assembly based on MBD, this article proposes a method of structural process design based on 3D model. First, an Assembly Digital Mock-up (ADMU) is constructed.
Wan Bi Le, He Wen Xing, Chen Chang Yu
doaj   +1 more source

Active control of potential of the geosynchronous satellites ATS-5 and ATS-6 [PDF]

, 1977
The ATS-6 geosynchronous satellite carries two cesium ion thrusters as part of the technology experiment package. Their effectiveness in controlling the spacecraft potential was shown during normal operation of the thrusters.
Goldstein, R.
core   +1 more source