Results 101 to 110 of about 655 (203)

Development and Testing of ø299.0 mm Monohole Expandable Casing

open access: yesShiyou jixie
In order to solve the problem of formation leakage in Shahejie Formation in Bohai Oilfield, it is necessary to develop expandable casings with large diameter, high compressive strength and good sealing performance to seal the cracks or faults in complex ...
Yang Baojian   +5 more
doaj   +1 more source

Influence of the natural radon radiation on the spread of the COVID 19 pandemic. [PDF]

open access: yesSci Rep, 2023
Yelizarov M   +3 more
europepmc   +1 more source

Fatigue du HNBR - effet de la formulation et du vieillissement thermique

open access: yes, 2018
The present PhD thesis is devoted to investigation of fatigue in elastomers, andmore particularly of carbon black-filled hydrogenated nitrile butadiene rubber (HNBR).HNBR is a high performance elastomer classically used for high temperature industrial ...
Narynbek Ulu, Kubat
core  

Estudo exploratório do efeito de diferentes cargas em borrachas de hnbr [PDF]

open access: yes, 2018
Neste projeto realizou-se um estudo exploratório sobre o efeito de diferentes cargas numa matriz de HNBR (borracha nitrílica hidrogenada) com destaque ao efeito de fibras de aramida, em comparação com nanofibras de carbono, à carga tradicional negro de ...
Barros, Ítalo Ribeiro de
core  

Development of Carbon Nanofiber Reinforced HNBR Composite for Sealing Applications

open access: yes, 2018
Carbon nanofiber(CNF) as a novel filler has been studied by researchers with huge enthusiasm owe to its special properties, like light weight, sustainability of large deformation, chemical stability, corrosion and fatigue resistance, vibration and noise ...
Sun, Yang
core  

Radioprotective Effects of Sulfurcontaining Mineral Water of Ramsar Hot Spring with High Natural Background Radiation on Mouse Bone Marrow Cells

open access: yesJournal of Biomedical Physics and Engineering, 2017
Background: We intend to study the inhibitory effect of sulfur compound in Ramsar hot spring mineral on tumor-genesis ability of high natural background radiation.
Heidari A. H.   +4 more
doaj  

Research on the Material Compatibility of Elastomer Sealing O-Rings. [PDF]

open access: yesPolymers (Basel), 2022
Müller M, Šleger V, Čedík J, Pexa M.
europepmc   +1 more source

Influence of Single-Wall Carbon Nanotube Suspension on the Mechanical Properties of Polymeric Films and Electrospun Scaffolds. [PDF]

open access: yesInt J Mol Sci, 2023
Dokuchaeva AA   +12 more
europepmc   +1 more source

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