Results 71 to 80 of about 197,560 (308)

Tester for study of rolling element bearings [PDF]

, 1967
Five-ball fatigue tester makes possible the study of rolling element phenomena. The device consists of a driven test ball pyramided upon four lower balls positioned by a separator and free to rotate in an angular contact ...
Zaretsky, E. V.
core   +1 more source

Chirotherium barthii Kaup 1835 from the Triassic of the Isle of Arran, Scotland [PDF]

, 2002
The mould of a track from SE Arran, and several in situ trackways and individual tracks, as well as a partial trackway on a loose block of Triassic sandstone, from western Arran, represent the first verifiable fossil tracks of Chirotherium from the ...
BENTON, BUCKMAN, CLARK, CLARK, CLARK, DELAIR, GREGORY, HARKNESS, HAUBOLD, HAUBOLD, HOPKINS, HORNE, KARL, PEABODY, POLLARD   +14 more
core   +1 more source

Ammonium Salts as Curing Agents to Obtain Ionic Epoxy Resins With a Thermoplastic‐to‐Thermoset Transition

Advanced Materials, EarlyView.
Ionic epoxy networks are prepared using ammonium salts as hardeners, leading to a two‐stage curing process with a thermoplastic‐like intermediate. This uncommon behavior enables extrusion and fabrication of thermoplastic prepregs that can be cured into thermoset composites.
Izabela Kurowska, Leire Unanue, Itxaso Calafel, Dorleta Otaegui, Jorge L. Olmedo‐Martínez, Lourdes Irusta, Daniel Vinagre, Nora Aranburu, Nerea Casado, Ibon Odriozola, David Mecerreyes   +10 more
wiley   +1 more source

Creep Characteristic of Rubber on Elastohydrodynamic Lubrication of Water-lubricated Rubber Bearing

Jixie chuandong, 2018
Considering the creep characteristics of the rubber bearing material,the infinite line contact model of the water-lubricated bearing is established,based on the Kelvin model and the three-parameter model,the elastohydrodynamic lubrication of water ...
Zhou Yabo, Wang Youqiang, Long Shenwen, Wei Cong   +3 more
doaj  

Liquids as Reinforcements for Anisotropic and Tough Soft Matter Composites

Advanced Materials, EarlyView.
Liquid metal droplets are shaped and oriented within soft elastomers to create all‐soft matter composites with programmable mechanical anisotropy. These liquid inclusions act as fiber‐like reinforcements, enabling directional stiffness, enhanced toughness, and controlled crack steering under extreme deformation, offering new routes to resilient soft ...
Gwyneth M. Schloer, Ohnyoung Hur, Ravi Tutika, Aaron Haake, Eric J. Markvicka, Michael D. Bartlett   +5 more
wiley   +1 more source

Study on static and dynamic mechanical properties and microstructure of silica fume-polypropylene fiber modified rubber concrete

Scientific Reports
Through tests and micro-observations, the static and dynamic mechanical properties and microstructure of rubber concrete samples modified with varying amounts of silica fume and polypropylene fiber content were explored.
Chenyue Han, Jianyong Pang, Shi Hu, Chunchun Yang   +3 more
doaj   +1 more source

Damage detection of bearing in gear case by using piezoelectric element incorporated in hanging rubber for gear case of rolling stock (Evaluation of defection performance by bench test)

Nihon Kikai Gakkai ronbunshu, 2020
A gear case used at a bogie of a rolling stock is an important part to pack a small gear and a large gear that pass the driving force from a main mortar to a wheel.
Shogo MAMADA, Hiroyuki TAKENAKA, Tatsuya OHTA, Ken TAKAHASHI, Daisuke SUZUKI   +4 more
doaj   +1 more source

A statistical theory of polymer network degradation [PDF]

, 2014
A statistical theory was proposed for the degradation (random scission of chains) of a network having f-functional nodes in the case where all chains contain equireactive groups and a chain scission event does not create new groups or suppress more than ...
GILORMINI, Pierre, RICHAUD, Emmanuel, VERDU, Jacques   +2 more
core   +6 more sources

A Comprehensive Review of Waste‐Derived Materials for Solar Still Performance Enhancement

Advanced Materials Interfaces, EarlyView.
ABSTRACT Solar desalination reduces energy use and produces freshwater sustainably, but its productivity is limited and cannot meet rising demand. Thus, solar desalination system improvements are sought to boost water productivity. Waste materials are abundantly available and burden the environment, making them low‐cost enhancers for solar desalination
A. S. Abdullah, Abanob Joseph, Wissam H. Alawee, Gamal B. Abdelaziz, Mohammed El Hadi Attia, Swellam W. Sharshir, Ahmed El‐Harairy   +6 more
wiley   +1 more source

On the Design and Lubrication of Water-Lubricated, Rubber, Cutlass Bearings Operating in the Soft EHL Regime

Lubricants, 2020
All propeller-driven ships employ a drive shaft supported by journal bearings. To avoid water pollution, these bearings are generally lubricated by the surrounding water, removing the need for a rear seal.
Edward H. Smith
doaj   +1 more source