Results 61 to 70 of about 271,699 (362)
Orbit Design Elements of Chang’e 5 Mission
Space: Science & Technology, 2021 The three key orbit design technologies employed in the Chang’e 5 mission are identified and discussed in this paper: orbit design for lunar orbit rendezvous and docking, orbit design for precision lunar landing and inclination optimization, and orbit ...
Zhong-Sheng Wang +3 more
doaj +1 more source
Docking and retrieval mechanism [PDF]
, 1977 An engineering prototype docking and retrieval mechanism (DRM) which enables two spacecraft to dock and be structurally joined on-orbit is described.
Spencer, R. A., Tewell, J. R.
core +2 more sources
Thermal Characterization of Ultrawide Bandgap Semiconductor Devices: A Review
Advanced Physics Research, EarlyView.This review outlines advanced thermal characterization methods essential for ultrawide bandgap semiconductors like β‐Ga₂O₃, AlN, and diamond. It critically compares optical and electrical techniques, highlights their applications in power and RF systems, and evaluates recent innovations.
Hassan Irshad Bhatti, Xiaohang Li
wiley +1 more source
Air dehumidification by membrane with cold water for manned spacecraft environmental control
MATEC Web of Conferences, 2017 The traditional condensation dehumidification method requires additional gas-liquid separation and water recovery process in the manned spacecraft humidity control system, which would increase weight and complexity of systems.
Shang Yonghong +6 more
doaj +1 more source
Archaeological Prospection, EarlyView.ABSTRACT Temperate river floodplains present a significant challenge for archaeologists, as cultural and palaeoenvironmental remains are often difficult to locate but can be exceptionally well preserved, especially where groundwater levels are high. In these alluvial environments, the deposition of thick, fine‐grained sediments has potential to deeply ...
Nicholas Crabb +3 more
wiley +1 more source
Unraveling the Effects of Redox‐Active Electrolytes on Carbon Electrodes in Li‐Ion Capacitor
Batteries &Supercaps, EarlyView.This article explores lithium‐ion capacitors and the benefits of redox‐active electrolytes. It discusses the experimental use of lithium thiocyanate and its influence on electrode behavior. The study details electrochemical techniques, analyses capacity, and resistance changes, highlights improved ion diffusion and intercalation, and concludes with ...
Adam Mackowiak +3 more
wiley +1 more source
Design of Real-Time Database for the Vacuum Cold-Black Environment Simulator
MATEC Web of Conferences, 2018 There is an urgent need to develop a real-time database (RTDB) to handle large amounts of real-time data, to realize process monitoring of vacuum cold-black environment simulation, cold-black environment data acquisition, fault processing, data storage ...
Shao Jingyi, Ning Juan, Liu Yangyang
doaj +1 more source
Batteries &Supercaps, EarlyView.A model for blend electrodes is developed, parameterized, and validated using experimental data from a SiOx/Gr electrode. The model provides information about local states, such as the degree of lithiation or material‐specific C‐rates, distinguishing between the two active materials.
Maximilian Schamel +3 more
wiley +1 more source
Journal of Aeronautical Materials, 2016 Damage effects of electron irradiation with different energy on mechanical properties of polyethylene heat-shrinkable sleeves were studied by irradiating the sleeves with 45 keV, 1 MeV and 2 MeV electrons respectively.
LIU Yuming +4 more
doaj +1 more source
, 1974 A turnstile slot antenna is disclosed, the antenna being for and integral with a spacecraft having a substantially cylindrical body portion. The antenna comprises a circumferential slot about the periphery of the spacecraft body portion with an annular ...
Munson, R. E.
core +1 more source