Results 1 to 10 of about 12,679 (50)
Influence of Chemical Heterogeneity and Third Body on Adhesive Strength: Experiment and Simulation
Frontiers in Mechanical Engineering, 2021 We investigate experimentally and numerically the influence of chemical heterogeneity and of third-body particles on adhesive contact. Chemical heterogeneity is generated by chemical treatment of the contacting bodies changing locally the surface energy.
Iakov A. Lyashenko +4 more
doaj +1 more source
Period Change of the Contact Binary AH Tauri [PDF]
Journal of Astronomy and Space Sciences, 2004 New BVRI photometric observations of the contact binary AH Tau were performed with the 61 cm reflector and a 2K CCD camera at the Sobaeksan Optical Astronomy Observatory during seven nights from September to December, 2001. A total of 144 times of minima
Dongjoo Lee +5 more
doaj +1 more source
REDISCUSSION OF PER100 CHANGE OF THE CLOSE BINARY V65l CASSIOPEIAE [PDF]
Journal of Astronomy and Space Sciences, 2002 Observations of times of minimum lights of the eclipsing binary V65l Cas were carried out on the three nights from November 21-23, 2000. From our observations a total of seven new times of minimum lights was obtained.
Chun-Hwey Kim +4 more
doaj +1 more source
Machines, 2023 A tamping machine is the key equipment of large coking coal cake forming in the steelmaking industry, where the loose coal is compacted into a coal cake by the reciprocating movement of its tamping hammer.
Lin Huang +4 more
doaj +1 more source
Friction transitions and connections to third bodies for a Cd coating on steel substrate
Friction, 2020 Cd coating is used in aerospace industries from last five decades due to its sacrificial protection and lubrication properties. Although Cd coating is primarily used due to its sacrificial corrosion protection when applied on steel substrate, the added ...
Priyadarshi Behera +4 more
doaj +1 more source
Resonance Capture for a Mercurian Orbiter in the Vicinity of Sun
Journal of Astronomy and Space Sciences, 2021 In this work, the problem of resonance caused by some gravitational potentials due to Mercury and a third body, namely the Sun, together with some non-gravitational perturbations, specifically coronal mass ejections and solar wind in addition to ...
Elamira Hend Khattab +2 more
doaj +1 more source
Semi-analytical orbital model around an oblate body with an inclined eccentric perturber
Frontiers in Astronomy and Space Sciences, 2023 The semi-analytical model (based on the averaging technique) for long-term orbital evolution has proven to be useful in both astrophysical and astrodynamical contexts.
Tao Fu, Yue Wang, Weiduo Hu
doaj +1 more source
Friction and Wear Properties of Wheat Straw Powder Third Body on Steel-Steel Friction Pair
Agriculture, 2022 Third body plant fibers have an important influence on the friction and wear properties of metal friction pairs. In this study, wheat straw powder with different particle sizes was prepared, and a pin-on-disk friction tester was employed to evaluate the ...
Chenglong Lian +5 more
doaj +1 more source
Thermodynamical Description of Running Discontinuities: Application to Friction and Wear
Entropy, 2010 The friction and wear phenomena appear due to contact and relative motion between two solids. The evolution of contact conditions depends on loading conditions and mechanical behaviours.
Claude Stolz
doaj +1 more source
Aluminum and alumina/MoS2/cellulose derivative composite: design and performance
Materials Research Express, 2022 Nanoparticles were added to improve the tribological performance of the biopolymer-based composite films. Aluminum and alumina were used as additives. The matrix of the composite was MoS _2 /hydroxypropyl methylcellulose (HPMC).
Shih-Chen Shi +2 more
doaj +1 more source