Results 91 to 100 of about 113,868 (281)
FEATURES OF TRAINING TEACHERS OF INFORMATICS TO CARRY OUT A LESSON IN MUSEUM
RUDN Journal of Informatization in Education, 2016 At the Moscow city pedagogical university (further MGPU) within experiment carried out training of teachers of informatics for carrying out a lesson of informatics on the basis of the Museum of Astronautics (Moscow).
O Yu Zaslavskaya
doaj
Publications of the Jet Propulsion Laboratory July 1965 through July 1966 [PDF]
Bibliography on Jet Propulsion Laboratory technical reports and memorandums, space programs summary, astronautics information, and literature ...
Woods, R. L.
core +1 more source
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT The supercritical drive shaft is becoming increasingly popular in helicopter transmission system. Dry friction dampers are specially employed to ensure the supercritical shafts crossing the critical speed safely. Due to design tolerances, manufacturing errors and time‐varying factors, the parameters of the damper are inherently uncertain ...
Liyao Song +4 more
wiley +1 more source
SensorsThis research unveils a cutting-edge navigation system for deep space missions that utilizes cosmic microwave background (CMB) sensor readings to enhance spacecraft positioning and velocity estimation accuracy significantly.
Pedro Kukulka de Albuquerque +3 more
doaj +1 more source
UAV autonomous path optimization simulation based on radar tracking prediction
EURASIP Journal on Wireless Communications and Networking, 2018 In the UAV path planning study, due to the relative movement of multiple targets and the UAV, long-term and large-scale UAV, autonomous tracking has not been achieved.
Bo Wang +3 more
doaj +1 more source
Nutrition During Long Flight [PDF]
The nutrition of astronautics during long flights is discussed, especially with respect to the changes brought about in the body by the condition of ...
Ushakov, A. S.
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International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT Because of the surging demand for clean energy, the performance and safety of lithium‐ion batteries (LIBs) for energy storage and conversion have received much attention. This study presents a battery thermal management system (BTMS) that combines air cooling with microchannel liquid cooling.
Xiaolu Yuan +4 more
wiley +1 more source
Implications of Output Impedance Mask Stability on Power Bus Architectures Used in Space Platforms
AerospaceThe European Power Standard, used when designing and implementing spacecraft power buses, imposes stringent impedance requirements for high reliability and robustness, unlike other standards such as those from the American Institute for Aeronautics and ...
José A. Carrasco +7 more
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Effect of Variations in the Ring Thickness on the Dynamic Performance of the Bimetal Gears
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT This study used a six‐degrees‐of‐freedom dynamic model to analyze the dynamic response of bimetal spur gears. Aluminum alloy forms the core of the bimetal gears, and a uniform‐thickness steel ring surrounds the teeth. Gear mesh stiffness of bimetal gears and the transmission error have been assessed using a numerical approach based on finite ...
Bikramjit Singh +2 more
wiley +1 more source