Results 101 to 110 of about 387,752 (254)

Performance of large-bore tapered-roller bearings under combined radial and thrust load at shaft speeds to 15,000 rpm [PDF]

open access: yes
The performance of 120.65-mm bore tapered roller bearings was investigated at shaft speeds up to 15,000 rpm. Temperature distribution and bearing heat generation were determined as a function of shaft speed, radial and thrust loads, lubricant flow rate ...
Parker, R. J., Signer, H. R.
core   +1 more source

Tape reading fixture [PDF]

open access: yes, 1969
Commercially available roller type desk pad provides an efficient and orderly manner of handling rolled paper tapes for proofreading. The fixture, which is modified to accept Flex-O-Writer or similar tapes and roll them in either direction, reduces the ...

core   +1 more source

Local Thermal Conductivity Patterning in Rotating Lattice Crystals of Anisotropic Sb2S3

open access: yesAdvanced Functional Materials, EarlyView.
Microscale control of thermal conductivity in Sb2S3 is demonstrated via laser‐induced rotating lattice crystals. Thermal conductivity imaging reveals marked thermal transport anisotropy, with the c axis featuring amorphous‐like transport, whereas in‐plane directions (a, b) exhibit 3.5x and 1.7x larger thermal conductivity.
Eleonora Isotta   +13 more
wiley   +1 more source

Comprehensive Failure Analysis of Rollers Screen Used in Iron Ore Pelletizing Plants [PDF]

open access: yesJournal of Advanced Materials in Engineering
Introduction and Objectives: This study investigates the failure mechanisms of three types of rollers used in iron ore pelletizing plants, namely 304 stainless steel, 1.4313 steel, and hard chrome-coated St52 steel.
Maryam Karbasi   +4 more
doaj   +1 more source

Development of small bore, high speed tapered roller bearing [PDF]

open access: yes
The performance of four rolling bearing configurations for use on the input pinion shaft of a proposed commercial helicopter transmission was evaluated.
Bovenkerk, R. L.   +2 more
core   +1 more source

Reconfigurable Magnetic Soft Microrobot for Acoustically Triggered Targeted Bacterial Sterilization

open access: yesAdvanced Functional Materials, EarlyView.
Reconfigurable magnetic soft microrobots integrate in situ‐grown piezoelectric zinc oxide nanorods that produce reactive oxygen species upon acoustic excitation. Combining magnetically guided transport with thermally induced planar reconfiguration, the microrobots achieve targeted delivery and enhanced bacterial sterilization through efficient on ...
Quan Gao   +12 more
wiley   +1 more source

Luxation obturatrice de la hanche: un traumatisme rare en pratique sportive

open access: yesThe Pan African Medical Journal, 2015
Les luxations antérieures traumatiques de la hanche sans fracture du cotyle ou de la tête fémorale sont rares. Elles sont souvent secondaires à des accidents de haute énergie cinétique. La prise en charge thérapeutique nécessite un chirurgien vigilant et
Issam Elouakili   +10 more
doaj   +1 more source

Monitoring ocean dumping with ERTS-1 data [PDF]

open access: yes
The results of an analysis of ERTS-1 data for the New York Bight collected on 16 August 1972 are described. Results are presented which show acid-iron wastes, sewage sludge, suspended solids, and major water mass boundary features in the study area.
Roller, N., Wezernak, C. T.
core   +1 more source

Electronic skewing circuit monitors exact position of object underwater [PDF]

open access: yes, 1967
Linear Variable Differential Transformer /LVDT/ electronic skewing circuit guides a long cylindrical capsule underwater into a larger tube so that it does not contact the tube wall.
Roller, R., Yaroshuk, N.
core   +1 more source

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