Results 71 to 80 of about 286,943 (345)
Fiber Optic Acoustic Vibration Sensors for Ultrasound Measurement in Low-Pressure CO₂ Environment
IEEE Access, 2020 The detection of acoustic signals in the Martian environment is significant to understand the issues such as the evolution of the universe, structure of matter, origin of life, and future migration of humans.
Jingchuan Zhang, Yifei Pei, Xiyuan Li
doaj +1 more source
Common approach to solving SGEMP, DEMP, and ESD survivability [PDF]
, 1977 System Generated Electromagnetic Pulse (SGEMP) and Dispersed Electromagnetic Pulse DEMP) are nuclear generated spacecraft environments. Electrostatic discharge (ESD) is a natural spacecraft environment resulting from differential charging in magnetic ...
Ling, D.
core +1 more source
Mathematical Methods in the Applied Sciences, EarlyView.ABSTRACT This paper develops a mathematical framework for interpreting observations of solar inertial waves in an idealized setting. Under the assumption of purely toroidal linear waves on the sphere, the stream function of the flow satisfies a fourth‐order scalar equation.
Tram Thi Ngoc Nguyen +3 more
wiley +1 more source
Sensitive characteristics of ZnO nano gas sensor based on dynamic temperature modulation
Results in Physics, 2020 In this paper, nano ZnO gas sensing materials and sensors are designed and fabricated by hydrothermal method. Focus on the selectivity problem of metal oxide gas sensors, a novel dynamic temperature modulation test method is proposed, and six ...
Yue Wu, Nianzhi Huang, Jing Wang
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Thermal recoil force, telemetry, and the Pioneer anomaly
, 2009 Precision navigation of spacecraft requires accurate knowledge of small forces, including the recoil force due to anisotropies of thermal radiation emitted by spacecraft systems.
D. Mihalas +5 more
core +1 more source
Designing displaced lunar orbits using low-thrust propulsion [PDF]
, 2010 The design of spacecraft trajectories is a crucial task in space mission design. Solar sail technology appears as a promising form of advanced spacecraft propulsion which can enable exciting new space science mission concepts such as solar system ...
Colin R. McInnes +9 more
core +1 more source
Development of NMP‐001, A Nitromethane‐Based Green Propellant
Propellants, Explosives, Pyrotechnics, EarlyView.ABSTRACT This paper discusses the development of a model monopropellant that is aimed at exploring the applicability of nitromethane‐based propellants as an alternative to hydrazine. This approach addresses the challenges faced by HAN‐, ADN‐based propulsion by being more cost‐effective while providing similar performance figures.
Maxim Kurilov +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
Medicane characteristics from high‐resolution satellite radar observations
Quarterly Journal of the Royal Meteorological Society, EarlyView.This study uses high‐resolution observations from satellite synthetic aperture radar (SAR) to reveal that medicanes, cyclones with tropical features in the Mediterranean basin, have dynamical characteristics with attributes comparable with those of tropical cyclones of similar intensities, but smaller outer sizes and Rossby numbers.
Arthur Avenas +6 more
wiley +1 more source
Effect of Atomic Oxygen on Electric Properties of Graphene Films
Cailiao gongcheng, 2017 The resistance and the surface morphology of the graphene films were studied after atomic oxygen exposure. The graphene films can be etched away during atomic oxygen exposure, the resistance of graphene films decreases at first and then increases.
LIU Yu-ming +4 more
doaj +1 more source