Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Donghui Miao"'
Publikováno v:
Frontiers in Environmental Science, Vol 10 (2022)
With the rapid development of China’s economy and the acceleration of urbanization, the rapid expansion of urban space has led to a growing demand for land that has resulted in the destruction and expropriation of a large amount of ecological land
Externí odkaz:
https://doaj.org/article/9066fca648204e86aefb74faf50f33c2
Publikováno v:
E3S Web of Conferences, Vol 233, p 01099 (2021)
Machine-made sand was significantly different from natural sand in terms of particle gradation, morphology, composition and structure. The concrete composed of mechanical sand and natural sand was greatly influenced by the physical and chemical prope
Publikováno v:
Journal of Physics: Conference Series. 2194:012035
In this paper, a low molecular weight polycarboxylate superplasticizer was designed and synthesized by using low molecular weight polyether macromonomer with molecular weight of 800 as the side chain of polycarboxylate superplasticizer; The ratio of
Publikováno v:
E3S Web of Conferences, Vol 179, p 01021 (2020)
In this paper, a polycarboxylic water reducing agent was synthesized by using Methylallyl polyethylene glycol (HPEG) with molecular weight of 1200, 2400, 2800 and 3400 under the same conditions, C80 concrete tests were performed on these four molecul
Publikováno v:
Journal of Physics: Conference Series. 1635:012089
Which is composed of crystalline silica, a small amount of mica and molybdenum ore salts, and is non-radioactive. As a fine aggregate of concrete, the water demand of fresh concrete will be increased. By increasing the dosage of water-reducing agent,
Publikováno v:
2018 2nd IEEE Advanced Information Management,Communicates,Electronic and Automation Control Conference (IMCEC).
T358 article analyzed the type of the induction-coil target's signal of velocity measurement and the principle of its generation and parameterized the signal combined with engineering practice. The idea of using speed signal generation circuit to sim