Results 31 to 40 of about 173,785,883 (337)

Effect of molybdenum oxide addition on the durability and structure of iron phosphate glasses

Journal of the Ceramic Society of Japan, 2021
Molybdenum oxide (MoO 3 )-containing iron phosphate (Fe ­ P) glasses with an analyzed Fe / P molar ratio of 0.41 ­ 0.43 and 0 ­ 43 mol % MoO 3 were prepared via a conventional melt-quenching method.
H. Takebe, M. Fujisawa, Y. Maeda, A. Saitoh   +3 more
semanticscholar   +1 more source

Switch and crossing for single line operation at double track section

Nihon Kikai Gakkai ronbunshu, 2020
This study aims to develop the switch and crossing for a single line operation at the double track section. First, the authors design and produce the simplified structure of the switch and crossing for passenger trains which can be installed without the ...
Shingo TAMAGAWA, Saki SHIMIZU, Teruhisa MIHARA, Yuya OIKAWA   +3 more
doaj   +1 more source

Experimental Study on the Effect of Carbon Graphitization Degree and Pore Structure on the Electrochemical Durability of Gas Diffusion Layers

Energies, 2023
Gas diffusion layers (GDLs) in high-temperature, high-humidity, and high-electric-potential environments can be affected by the carbon corrosion and degradation of Polytetrafluoroethylene (PTFE) network structures, resulting in reduced reliability and ...
Jianan Wang, Lingfeng Gao, Tianshu Liao, Feng Cheng, Daming Zhou, Shiyang Hua   +5 more
doaj   +1 more source

Explicit Modeling of Compressive Strength in Manufactured Sand Concrete Based on Integrated Machine Learning Approaches

Buildings
To address the limitations of traditional BP neural networks in predicting manufactured sand concrete strength, specifically their susceptibility to local optima and “black-box” opacity, this study developed an integrated framework combining improved ...
Juanjuan Quan, Kunlin Liu, Hao Su, Shaojun Fu, Kaifeng Zhang, Peiyu Wang, Yufei Zhang   +6 more
doaj   +1 more source

Mechanism of SCMs on the hydration, pore structure, and durability of UHPFRC

Journal of Sustainable Cement-Based Materials
To mitigate cement overuse and associated CO2 emissions, incorporation of supplementary cementitious materials (SCMs) offers a sustainable strategy for producing eco-friendly ultra-high-performance fiber-reinforced concrete (UHPFRC).
Jia He, Tao Liu, Weiwei Wu, Xuan Ling, Qing-Liang Yu   +4 more
semanticscholar   +1 more source

Investigation of the role of Mg and Ca in the structure and durability of aluminoborosilicate glass

Journal of Non-Crystalline Solids, 2019
The structure and dissolution behaviour of Na 2 O·CaO·(15–x)Al 2 O 3 ·xB 2 O 3 ·SiO 2 and Na 2 O·MgO·(15–x)Al 2 O 3 ·xB 2 O 3 ·SiO 2 glasses, relevant to compositions of UK nuclear waste glass, have been investigated using nuclear magnetic resonance (NMR)
D. Backhouse, C. Corkhill, N. Hyatt, R. Hand   +3 more
semanticscholar   +1 more source

Durability design and construction enhancing of concrete structures in mesoscopic approach: A case study of a large-scale anchorage structure

Case Studies in Construction Materials, 2023
The durability challenges in concrete infrastructure are complex, with difficulties in considering the multiscale material variation and multiphysics deterioration mechanism during long-term service.
Yue Li, Xin Ruan, Taike Zhang, Baiyong Fu, Hongzhou Zeng   +4 more
doaj   +1 more source

Boosted electrocatalytic activity and durability of CuFe/NC by modulating the interfacial composition and electronic structure for efficient oxygen reduction reaction.

Journal of Colloid and Interface Science
Oxygen reduction reaction (ORR) serves as the foundation for various electrochemical energy storage devices. Fe/NC catalysts are expected to replace commercial Pt/C as oxygen electrode catalysts based on the structural tunability at the atomic level ...
Sheng-Zhi He, Jingyu Wang, Chun-Jing Sun
semanticscholar   +1 more source

Critical review of the South African Concrete Durability Index tests [PDF]

, 2014
Includes bibliographical references.The Durability Index (DI) approach is a performance-based approach used in South Africa for specifying the durability of reinforced concrete structures with regard to service life and concrete quality.
Mukadam, Zaahir
core   +1 more source

High strength concrete using ground granulated blast-furnace slag with Alccofine and with silica fume

Mehran University Research Journal of Engineering and Technology, 2022
High strength concrete (HSC) is highly promising building material widely used in large scale concrete constructions that require high strength, high flow ability and high durability.
Geena George, Arjun Kumar
doaj   +1 more source