Results 21 to 30 of about 2,734,594 (261)

Molecular-based asphalt oxidation reaction mechanism and aging resistance optimization strategies based on quantum chemistry

open access: yesMaterials & Design, 2022
Understanding the oxidation reaction mechanism of asphalt is critical to improving its aging resistance. Here, quantum chemistry (QC) was used to study the oxidation reaction mechanism of 12 typical asphalt molecules.
Shuang Liu   +4 more
doaj   +1 more source

Experimental Study on the Cracking Resistance of Asphalt Mixture with Different Degrees of Aging

open access: yesApplied Sciences, 2023
The cracking resistance of asphalt mixture is a non-negligible issue. However, the cracking resistance evolution law, motivated by two factors (thermos-oxidative aging degree and test temperature), is not yet well understood.
Shuyao Yang, Zhigang Zhou, Kai Li
doaj   +1 more source

Study on Rheological and Temperature Sensitive Properties of Recycled Asphalt from Furfural Extraction Oil [PDF]

open access: yesZhengzhou Daxue xuebao. Gongxue ban, 2022
In order to find out the regeneration effect of furfural extraction oil as asphalt regeneration agent on asphalt with different aging degrees, the rheological properties and temperature sensitivity of furfural extraction oil recycled asphalt were ...
WU Wenliang, DAI Shenglin, SI Li
doaj   +1 more source

Insecticide resistance comes of age [PDF]

open access: yesGenome Biology, 2014
AbstractA new study integrates biochemistry, genetics and structural biology to reveal the mechanism of metabolic resistance in a vector mosquito in unprecedented detail.See related research http://genomebiology.com/2014/15/2 ...
openaire   +3 more sources

Aging news and perspective

open access: yes, 2012
Jan. 12, 2012-; "... A blog-like publication that connects interest Ohioans to news and information about issues affecting older Ohioans and the people who care for and serve them."; Not published Feb.-Nov. 2013.; Issue for Jan.

core   +4 more sources

Research Progress on Aging Resistance and Service Life Evaluation of Epoxy Resin Protective Repair Materials in Hydraulic Environment [PDF]

open access: yesCailiao Baohu, 2023
Epoxy resin is widely used in the surface protection and repair of hydraulic structures in water conservancy and hydropower engineering projects.However, with the extension of service time, the problem of aging failure of epoxy resin protective and ...
JIANG Lu, FENG Jing, XIONG Zebin, WANG Jinkai, WANG Yuanyi
doaj   +1 more source

Anti-peroxynitrite treatment ameliorated vasorelaxation of resistance arteries in aging rats: involvement with NO-sGC-cGKs pathway. [PDF]

open access: yesPLoS ONE, 2014
Declined vasorelaxation function in aging resistance arteries is responsible for aging-related multiple organ dysfunctions. The aim of the present study is to explore the role of peroxynitrite (ONOO-) in aging resistance arterial vasorelaxation ...
Lu Ma   +9 more
doaj   +1 more source

Quick evaluation of hot air ageing resistance for natural rubber

open access: yesHecheng xiangjiao gongye, 2021
The hot air ageing resistance of natural rubber vulcanizates was investigated with differential scanning calorimetry. The apparent activation energy, reaction rate constant(KT) and oxidative induction time(ti) for oxidation reaction were obtained by ...
WU Ling-ling1, WANG Xue-fei1, WANG Chang-ying2, LIU Quan1, HUANG Liang-ping1, YU Hai-wen1
doaj   +1 more source

Research on Enhancement of Toughness Performance in Polyurethane-Modified Epoxy Asphalt

open access: yesZhongwai Gonglu
To solve low toughness and high brittleness of epoxy asphalt under low-temperature conditions, in this study, polyether-type polyurethane (JMPU) and polyester-type polyurethane (JZPU) were employed to prepare modified epoxy asphalt.
LIANG Bo   +4 more
doaj   +1 more source

Synthesis of migration-resistant antioxidant and its application in natural rubber composites

open access: yese-Polymers
In this article, a novel migration-resistant antioxidant (CGE-g-PPDA) was synthesized using cardanol glycidyl ether (CGE) and p-aminodiphenylamine (PPDA) and characterized by infrared spectroscopy, indicating that the antioxidant has been successfully ...
Li Fade   +5 more
doaj   +1 more source

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