Results 21 to 30 of about 994,111 (289)
Tilting-Pad Journal Bearings—Frequency-Dependent Dynamic Coefficients and Pivot Flexibility Effects
Lubricants, 2022 Tribologists have generally accepted that the dynamic modeling of tilting-pad journal bearings (TPJB) must consider the frequency dependency of the dynamic properties.
Laurence F. Wagner, Paul E. Allaire
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Friction, 2017 In this paper, the material removal mechanism of copper chemical mechanical polishing was studied by the quasicontinuum method that integrated molecular dynamics and the finite element method. By analyzing the abrasive process of different particle sizes
Aibin Zhu +3 more
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Pediatric Blood &Cancer, EarlyView.Abstract Background Sickle cell disease (SCD) is an autosomal recessive hemoglobinopathy affecting millions of individuals worldwide. The clinical expression and psychosocial burden of SCD vary widely across geographical, cultural, and healthcare system contexts, underscoring the need for setting‐specific approaches to assessment.
Desiré Fantasia +7 more
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Analysis on the Dynamic Behavior of Space Shafting under Combined Load
Shock and VibrationThe space shafting is the core component of the momentum exchange attitude control actuator for spacecraft.The dynamic behavior of space shafting has an important impact on the performance of the actuators. Based on the dynamic theory of rolling bearing,
Yan Zhao +5 more
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Study of the Micropore Structure and Tribological Properties of PTFE-Modified Porous Polyimide
LubricantsTo address the challenges of regulating micropore properties and improving the tribological performance of porous polyimide (PPI), PPI/PTFE composites were fabricated via cold pressing–sintering.
Xiaobo Sun +6 more
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Cage stability of ball bearings under variable working conditions
工程科学学报, 2019 The momentum wheel is a key device used for orbiting satellite attitude control. Its controlling accuracy is strongly influenced by the cage stability of the ball bearings in momentum wheels.
Zhi-qiang ZHANG +4 more
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The Journal of Physical Chemistry, 1934 "A survey of the literature on bearing metals and bearings."--Pref. ; "Bibliography of bearing metals, sliding-contact bearings, friction, and lubrication": p. 41-147. ; History.--Bibliography of bearing metals, sliding-contact bearings, friction, and lubrication; literature references from 1900 to 1928 inclusive (p.
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Journal for Social Action in Counseling & Psychology, 2013 In this essay I critically examine the idea of race in light of the killing of Trayvon Martin, an African-American unarmed teenager, in Florida in February 2012. I utilize ideas from liberation psychology, including psychic colonization, and depth psychology, including cultural complex, to explore the racialized black as a colonized, traumatized other.
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Neuroblastoma is the most common extracranial solid tumor in early childhood. Its clinical behavior is highly variable, ranging from spontaneous regression to fatal outcome despite intensive treatment. The International Society of Pediatric Oncology Europe Neuroblastoma Group (SIOPEN) Radiology and Nuclear Medicine Specialty Committees ...
Annemieke Littooij +11 more
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Machines, 2022 The spindle and grinding wheel flange (GWF) adopt double positioning of a tapered surface and end face. Due to the processing quality, the contact state of the spindle–GWF interface cannot be determined accurately.
Qianqian Yuan +3 more
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