Results 41 to 50 of about 3,064,124 (312)

Series-hybrid bearing - An approach to extending bearing fatigue life at high speeds [PDF]

open access: yes, 1971
Fluid film bearing of hybrid device consists of orifice compensated annular thrust bearing and self-acting journal bearing. In series hybrid bearing, both ball bearing and annular thrust bearing carry full system thrust load, but two bearings share speed.
Anderson, W. J.   +3 more
core   +1 more source

Laman Graphs are Generically Bearing Rigid in Arbitrary Dimensions

open access: yes, 2017
This paper addresses the problem of constructing bearing rigid networks in arbitrary dimensions. We first show that the bearing rigidity of a network is a generic property that is critically determined by the underlying graph of the network. A new notion
Ahn, Hyo-Sung   +4 more
core   +1 more source

Design and application of squeeze film dampers for turbomachinery stabilization [PDF]

open access: yes, 1975
The steady-state transient response of the squeeze film damper bearing was investigated. Both the steady-state and transient equations for the hydrodynamic bearing forces are derived; the steady-state equations were used to determine the damper ...
Allaire, P. E.   +2 more
core   +2 more sources

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source

Cage stability of ball bearings under variable working conditions

open access: yes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
doaj   +1 more source

Bearing material [PDF]

open access: yes, 1976
A composite material is described which will provide low friction surfaces for materials in rolling or sliding contact and is self-lubricating and oxidation resistant up to and in excess of about 930 C.
Sliney, H. E.
core   +1 more source

Bear essentials

open access: yesTrends in Genetics, 2023
Strangely, American black bears come in many colours. New work by Puckett et al. shows that a missense alteration in the gene encoding tyrosinase-related protein 1 (TYRP1) likely interferes with melanin synthesis and is responsible for the cinnamon colour variant in the southwest USA.
openaire   +2 more sources

Personalized Selumetinib Dosing in Pediatric Neurofibromatosis Type 1: Insights From a Pilot Therapeutic Drug Monitoring Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Objective To evaluate selumetinib exposure using therapeutic drug monitoring (TDM) in pediatric patients with neurofibromatosis type 1 (NF1) and plexiform neurofibromas (PN), assess interpatient pharmacokinetic variability, and explore the relationship between drug exposure, clinical response, and adverse effects.
Janka Kovács   +8 more
wiley   +1 more source

Energy Evolution and Acoustic Emission Precursors for Coal–Rock Instability Under Uniaxial Compression

open access: yesAdvances in Civil Engineering
The prevention of coal–rock dynamic disasters is crucial for ensuring sustainable and safe mining operations, necessitating a precise understanding of crack propagation and precursor signals for accurate hazard prediction.
Gang Jing   +5 more
doaj   +1 more source

Study of the Micropore Structure and Tribological Properties of PTFE-Modified Porous Polyimide

open access: yesLubricants
To 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
doaj   +1 more source

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