Results 11 to 20 of about 7,692,155 (296)
Bilateral and Unilateral Asymmetries of Strength and Flexibility in Young Elite Sailors: Windsurfing, Optimist and Laser Classes [PDF]
, 2020 In sport sailing, performance is related to the sailor’s ability to maintain the stability of the boat, and the boat class determines the variables involved in such ability.
Alías, Antonio +2 more
core +3 more sources
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 +8 more
doaj +1 more source
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 +3 more
doaj +1 more source
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
An Image Case of Lepromatous Leprosy in a Patient With Parkinson Disease
Annals of Internal Medicine: Clinical CasesA 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
doaj +1 more source
Heat flux calculation method of modular quartz lamp based on ray tracing method
Xibei Gongye Daxue XuebaoIn 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 +4 more
doaj +1 more source
Xibei Gongye Daxue XuebaoA 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 +4 more
doaj +1 more source
Relation between the strength and dimensionality of defect-free carbon crystals [PDF]
, 2015 On the basis of ab-initio simulations, the value of strength of interatomic bonds in one-, two- and three-dimensional carbon crystals is obtained. It is shown that decreasing in dimensionality of crystal gives rise to nearly linear increase in strength ...
Kolyvoshko, Eugene +3 more
core +2 more sources
Extreme thermal load generation method for high-temperature structures in atmospheric environment
Xibei Gongye Daxue XuebaoFor 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 +4 more
doaj +1 more source
Kinetics of Plastic Deformation Localization Bands in Polycrystalline Nickel
Metals, 2021 Jerky flow has recently aroused interest as an example of complex spatiotemporal dynamics resulting from the collective behavior of defects in Al- and Mg-based alloys under loading.
Svetlana A. Barannikova +1 more
doaj +1 more source