Results 11 to 20 of about 1,323,875 (234)

Rolling contact fatigue of silicon nitride. [PDF]

open access: yes
Silicon Nitride has traditionally been used as rolling contact bearing material owing to its superior performance compared to bearing steels. Its successful application as a bearing element has led to the development of Silicon Nitride in other rolling ...
Wang, W.
core   +9 more sources

Comparison of 4-ball and 5-ball rolling contact fatigue tests on lubricated Si3N4/steel contact [PDF]

open access: yes, 2003
Accelerated four-ball and five-ball rolling tests were performed on HIPed Si3N4 ball samples (rough lapped with surface roughness value Ra0.08 μm and Rq0.118 μm) in fully lubricated condition.
Kang, J, Hadfield, M
core   +6 more sources

Some problems in hot rolling of al-alloys solved by the finite element method [PDF]

open access: yes
This thesis is focused on employing the finite element method (FEM) to simulate hot flat rolling process. The relevant work involves selecting a suitable constitutive equation, predicting the rolling load and roll torque, computing temperature changes ...
Duan, X.
core   +9 more sources

The effects of foam rolling on ankle dorsiflexion range of motion in healthy adults: A systematic literature review [PDF]

open access: yes, 2022
Background: Reduced ankle dorsiflexion is associated with lower limb injury and dysfunction, with static stretching mostly used to increase ankle range of motion.
Durrant, Edward   +5 more
core   +1 more source

Contact Pressure Measurement System in Cross Wedge Rolling [PDF]

open access: yes, 2010
In the cross wedge rolling process (CWR), plastic deformation is geared by a driving torque transmitted by friction on die surface. Friction plays a role which has to be further identified in this metal forming process. The local contact pressure between
MANGIN, Philippe   +2 more
core   +1 more source

Rolling Shutter Motion Deblurring [PDF]

open access: yes, 2015
Although motion blur and rolling shutter deformations are closely coupled artifacts in images taken with CMOS image sensors, the two phenomena have so far mostly been treated separately, with deblurring algorithms being unable to handle rolling ...
Shuochen Su   +3 more
core   +2 more sources

Numerical Study on Thermal-hydraulic Characteristics of Lead-bismuth Loop System under Rolling Motion

open access: yesYuanzineng kexue jishu, 2023
Lead-bismuth reactor has the advantages of high inherent safety, strong natural circulation capacity, long operation life and rapid transient response, and has a good application prospect in special applications such as ocean engineering.
YUAN Lanfei;WANG Chenglong;LIU Zhipeng;SU Guanghui;QIU Suizheng;TIAN Wenxi
doaj  

Unsteady aerodynamics simulation for the road vehicle in combined roll and yaw motion

open access: yesNihon Kikai Gakkai ronbunshu, 2016
Unsteady aerodynamic forces and flow structures around a road vehicle in dynamic motion were investigated in this study. The special focus was on the aerodynamic rolling moment acting on the vehicle in multiple degrees of freedom motion, namely, roll ...
Jun IKEDA   +2 more
doaj   +1 more source

Dual camera testing method for 3D velocity field of rolling and grinding blocks

open access: yesJin'gangshi yu moliao moju gongcheng
ObjectivesThe motion speed of the rolling and polishing block is one of the key factors affecting the overall machining effect of rolling polishing. However, the traditional method for measuring the flow velocity of rolling and polishing blocks has many ...
Chunyue TIAN   +4 more
doaj   +3 more sources

Motion and Muscle Activity of Synchronized Rolling-Type Double-Leg Circles on a Pommel Horse

open access: yesProceedings, 2020
Experimental analyses of motions of a double-leg circle were conducted for a smooth and dynamic movement. A motion capture system provided the data for two different gymnasts; one is well trained and the other has an average skill level.
Motoyuki Nawa   +6 more
doaj   +1 more source

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