Recently, Professor Zhan Dongping's group and Professor Tan Yuanzhi's group at Xiamen University collaborated to experimentally demonstrate that graphene can achieve a carbon-hydrogen atomic ratio of 1:1 and a theoretical capacity of 7.7% by weight b…
After Russia pledged to scale back its military operations around Kyiv and in northern Ukraine, the prices of most industrial metals fell, led by aluminum, showing people's concerns for supply shortage eased.At an earlier time, the West imposed sweep…
Under the premise of ensuring the quality of concrete, early strength agent can greatly shorten its final setting time, make it as early as possible, and then accelerate the turnover of template, save template dosage.…
The impact of the economy facing the risk of a technical recession on superplasticizer high strength concrete The latest bout of the coronavirus outbreak could tip the German economy into a technical recession in the first quarter of this year. In th…