Results 11 to 20 of about 150,666 (188)

Suspensory materials for surgery of blepharoptosis: a systematic review of observational studies [PDF]

open access: yes, 2016
Background Frontalis suspension surgery is considered the procedure of choice in cases of blepharoptosis. Among all the materials used in this type of surgery, ophthalmic and plastic surgeons prefer to use autologous Fascia Lata.
Amorelli, Giulia Maria   +7 more
core   +3 more sources

Effect of hydrophilized PTFE brush structure on seizure resistance in water

open access: yesNihon Kikai Gakkai ronbunshu, 2014
To prepare exhaustion of oil supplies, alternative lubricant which is good for environment will be required. Water is expected to be a suitable lubricant. However in water lubrication, high wear and seizure come to be problems because of water's low
Shingo KAWARA   +5 more
doaj   +1 more source

Cryogenic Tribology of High-Speed Bearings and Shaft Seals in Liquid Hydrogen

open access: yesTribology Online, 2011
Liquid hydrogen (LH2) is excellent in extensive storage and transportation systems, such as being used as fuel in highly efficient liquid-rocket engines.
Masataka Nosaka
doaj   +1 more source

Effect of thermal aging on the crystal structural characteristics of poly(tetra fluoro ethylene) [PDF]

open access: yes, 2007
The residual effects of cumulative thermal aging on the crystal structural characteristics of the fluoro carbon poly(tetra fluoro ethylene) (PTFE) have been studied by X-ray diffraction methods.
Jain, Anjana, Vijayan, Kalyani
core   +1 more source

The influence of surface morphology and wettability on the inflammatory response against poly(L-lactic acid): A semi-quantitative study with monoclonal antibodies [PDF]

open access: yes, 1995
In this study, the influence of surface morphology and wettability of both degradable and nondegradable polymer films on the inflammatory response after subcutaneous implantation in the rat was investigated.
Baier   +46 more
core   +3 more sources

Cooperation of the PTFE sealing ring with the steel ball of the valve subjected to durability test

open access: yesOpen Engineering, 2019
The paper presents an quantitative assessment of the wear process of the sealing ring made of pure PTFE cooperating with steel ball of the industrial valve. The three variants of the sealing PTFE ring differing in shape were taken into consideration.
Romanik Grzegorz   +2 more
doaj   +1 more source

The Effect of Simultaneous Incorporation of PTFE Nanoparticles and Carbon Nanotubes on the Tribological Behavior of Ni-P Coating [PDF]

open access: yesIranian Journal of Oil & Gas Science and Technology, 2016
In some engineering fields, wear resistance and a low friction coefficient are required at the sametime. In this research, PTFE nanoparticles and carbon nanotubes were co-deposited within Ni-Pmatrix to obtain an Ni-P-PTFE-CNT hybrid coating for wear ...
Hamid Rahmati, Farzad Mahboobi
doaj   +1 more source

Repairing rat calvarial defects by adipose mesenchymal stem cells and novel freeze-dried three-dimensional nanofibrous scaffolds [PDF]

open access: yesBioImpacts, 2023
Introduction: Treatment of critical-sized bone defects is challenging. Tissue engineering as a state-of-the-art method has been concerned with treating these non-self-healing bone defects.
Maryam Sadat Khoramgah   +7 more
doaj   +1 more source

Oil film measurement in polytetrafluoroethylene-faced thrust pad bearings for hydrogenerator applications [PDF]

open access: yes, 2006
There is a growing trend in the replacement of the babbit facing in thrust pad bearings with a composite polytetrafluoroethylene (PTFE) surface layer. The PTFE-faced bearings have been shown to allow a greater specific pressure, reduce thermal crowning ...
Drinkwater, B.W.   +3 more
core   +1 more source

Characterization of solid residues emerging during ultrasonic cleaning treatments of tyre moulds [PDF]

open access: yesFME Transactions, 2017
The present paper aims at the investigation of the nature and possible origin of solid residues found in the washing basins of Ultrasonic Mould Cleaning System (UMCS) plants.
Zattini Giorgio   +3 more
doaj  

Home - About - Disclaimer - Privacy