Results 21 to 30 of about 3,939,893 (294)

Study on optimization method of the modular reconfigurable UAV's wing structure

Hangkong gongcheng jinzhan, 2023
The design of the modular reconfigurable unmanned aircraft vehicle (UAV) has complex conditions and multiple constraints, and it is necessary to obtain the optimal scheme by means of the research on suitable optimiza-tion method according to different ...
LUO Lilong, GUO Wenjie, CHANG Liang
doaj   +1 more source

Acute and delayed effects of a resistance training session leading to muscular failure on mechanical, metabolic, and perceptual responses

, 2018
Párraga-Montilla, JA, García-Ramos, A, Castaño-Zambudio, A, Capelo-Ramírez, F, González-Hernández, JM, Cordero-Rodríguez, Y, and Jiménez-Reyes, P. Acute and delayed effects of a resistance training session leading to muscular failure on mechanical ...
Capelo Ramírez, Fernando, Cordero Rodríguez, Yaiza Adela, Párraga Montilla, Juan A, García Ramos, Amador, Castaño Zambudio, Adrián, Jiménez Reyes, Pedro, González Hernández, Jorge M   +6 more
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An Image Case of Lepromatous Leprosy in a Patient With Parkinson Disease

Annals of Internal Medicine: Clinical Cases
A 72-year-old man with Parkinson disease presented with 18 months of diffuse blotchiness without associated pain or pruritis. Fite stain and Mycobacterium leprae polymerase chain reaction of a skin biopsy specimen were positive, and he was diagnosed with
Rachel E. Strength, Shirin Mazumder
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Heat flux calculation method of modular quartz lamp based on ray tracing method

Xibei Gongye Daxue Xuebao
In order to solve the problem that the heat flow calculation time is so long of modular quartz lamp with reflective screen, a ray tracing method is proposed to calculate the radiant heat flow of modular quartz lamp.
LI Xinxin, WANG Binwen, WU Jingtao, ZHANG Xiaoxiao, LIU Ningfu   +4 more
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Literature Survey of Experiment of Vibration and Response for Rotating Blade with Dry Friction Damper

Hangkong gongcheng jinzhan, 2018
It is of important significance to study the vibration characteristics and vibration suppression technology of aero-engine rotating blades to improve the engine performance, structural integrity and working reliability.
Qin Jie, Yan Qun, Huang Wenchao
doaj   +1 more source

Computational analysis of deformation and fracture in composite materials and coatings [PDF]

EPJ Web of Conferences, 2019
Deformation and fracture of metal-ceramic composites and coatings under quasistatic tension, compression, shear, and during cooling from the melt to room temperatures are numerically investigated.
Balokhonov Ruslan, Bakeev Rustam, Romanova Varvara, Emelianova Evgenia, Sergeev Maksim, Zinoviev Aleksandr, Zinovieva Olga, Batukhtina Ekaterina, Schwab Eugene   +8 more
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Extreme thermal load generation method for high-temperature structures in atmospheric environment

Xibei Gongye Daxue Xuebao
For addressing the severe aerodynamic thermal load simulation challenge of hypersonic aircraft in ground tests, an extreme thermal load generation method based graphite for high-temperature structures in atmospheric environment is proposed.
WANG Binwen, ZHANG Yi, QIN Qiang, CHEN Hong, WU Jingtao   +4 more
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Multidisciplinary Optimization Design of Low-Noise Propellers

Aerospace, 2023
In this paper, a multidisciplinary optimization design method and its verification of low-noise aircraft propellers considering aerodynamics, noise, and structural strength were carried out to further reduce the aerodynamic noise of the aircraft ...
Dongwen Xue, Qun Yan, Zhuohan Li, Kai Wei   +3 more
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Calculation method of radiation heat flux field for quartz lamp array for the constant diameter cabins of missile

Xibei Gongye Daxue Xuebao
A rapid calculation method was proposed for the heat flux field of the cylindrical quartz lamp array for the ground thermal test of the constant diameter cabin of missile under multi-elements mesh for the semi-cylinder of the filament.
ZHANG Xiaoxiao, WANG Binwen, YAO Chisen, LI Xinxin, WU Jingtao   +4 more
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Structure design of variable camber wing trailing edge based on multi-block rotating mechanism

Xibei Gongye Daxue Xuebao, 2023
The variable camber trailing edge enables the aircraft to maintain the best aerodynamic performance throughout the flight envelope, so as to achieve the ultimate goal of reducing aircraft fuel consumption and air pollutant emissions.
SHI Xintong, YANG Yu, GE Wenjie, WANG Zhigang, SUN Xiasheng   +4 more
doaj   +1 more source