Results 41 to 50 of about 2,565,572 (381)

Reinforcement mechanism of nano-SiO2 and polypropylene fibers on concrete abrasion resistance subject to dynamic sandy water

Journal of Materials Research and Technology, 2023
Abrasion resistance of concrete is essential for the safety assessment of hydraulic structures subject to sandy water scouring. In this study, ten types of concrete specimens were designed to investigate the effect of nano-SiO2 (NS) and polypropylene ...
Jinjun Guo, Xing Xia, Peng Zhang, Kun Wang   +3 more
doaj  

Influence of Ageing on Abrasion Volume Loss, Density, and Structural Components of Subfossil Oak

Applied Sciences, 2022
Subfossil oak wood has spent centuries or millennia in the aquatic medium (rivers, lakes, bogs, etc.) and, due to water anoxic conditions, its decomposition is very slow.
Vera Rede, Sara Essert, Martina Kocijan, Tomislav Dubravac   +3 more
doaj   +1 more source

ABRASIVE WEAR MECHANISM

, 2023
Wear - is a change in the size, shape, mass or condition of the surface of a product or structure due to destruction (wear) of the surface layer. Abrasive wear is the destruction of the surface by hard abrasive grains. There are two possible types of impact of abrasive grains on the surface.
openaire   +2 more sources

Review of Research on Hydraulic Mechanical Abrasion

Renmin Zhujiang, 2021
In the working process of hydraulic machinery,it is inevitable to suffer from the abrasion of fluid containing impurities.This paper introduces abrasion systematically and comprehensively from the following five aspects:the formation mechanism and ...
LI Xiaochao, XIE Weiwei, ZHANG Hao, QIN Rong, WANG Xiaoli   +4 more
doaj  

Solid particle erosion and viscoelastic properties of thermoplastic polyurethanes [PDF]

, 2015
The wear resistance of several thermoplastic polyurethanes (TPUs) having different chemical nature and micronscale arrangement of the hard and soft segments has been investigated by means of erosion and abrasion tests.
ACIERNO, DOMENICO, ARENA, GAETANO, FILIPPONE, GIOVANNI, Friedrich, K., Padenko, E., Russo, P., Wagner, J.   +6 more
core   +3 more sources

Mechanical Properties and Durability of Geopolymer Recycled Aggregate Concrete: A Review

Polymers, 2023
Geopolymer recycled aggregate concrete (GPRAC) is a new type of green material with broad application prospects by replacing ordinary Portland cement with geopolymer and natural aggregates with recycled aggregates.
Peng Zhang, Xiao-yan Sun, Fei Wang, Juan Wang   +3 more
semanticscholar   +1 more source

Investigation of Fragmentation and Abrasion Resistance of Basalt and Limestone Aggregates in Bitlis Region and the Relationship between MgSO4 and Flatness Index Values

Firat University Journal of Experimental and Computational Engineering
The mechanical characteristics of aggregates have a direct impact on the performance of asphalt mixtures. The aggregates used in road construction must possess certain essential qualities; they should be clean, hard, durable, resistant to abrasion, of ...
Alev Akıllı El
doaj   +1 more source

Mechanical compatibility of sol–gel annealing with titanium for orthopaedic prostheses [PDF]

, 2015
Sol–gel processing is an attractive method for large-scale surface coating due to its facile and inexpensive preparation, even with the inclusion of precision nanotopographies.
Brydone, Alistair S., Gadegaard, Nikolaj, Greer, Andrew I. M., Lim, Teoh S.   +3 more
core   +1 more source

Protonophore activity of short‐chain fatty acids induces their intracellular accumulation and acidification

FEBS Letters, EarlyView.
The protonated form of butyrate, as well as other short‐chain fatty acids (SCFAs), is membrane permeable. In acidic extracellular environments, this can lead to intracellular accumulation of SCFAs and cytosolic acidification. This phenomenon will be particularly relevant in acidic environments such as the large intestine or tumor microenvironments ...
Muwei Jiang, Frans Bianchi, Geert van den Bogaart   +2 more
wiley   +1 more source

Novel Artificial Biofilm Equivalent for Denture Surfaces: A Pilot Study

International Journal of Polymer Science, 2022
The microbial population of the dental biofilm is embedded in an extracellular matrix that contains organic polymers such as polysaccharides. The extracellular matrix promotes biofilm adhesion on surfaces of dental prostheses and acts as a protective ...
Jan-Philipp Kunze, Klaus Boening, Heike Meissner, Katarzyna Kresse-Walczak   +3 more
doaj   +1 more source