On June 29, BP released the Statistical Yearbook of World Energy 2022 (yearbook). According to the yearbook, "The past 2021 has seen the greatest challenges and uncertainties in the global energy system in nearly 50 years."…
The efficient polycarboxylate superplasticizer is a synthetic polymer used in the preparation of high strength concrete. They are also known as high range water reducers because their use in wet concrete can reduce the water content in wet concrete m…
New materials refer to newly developed or developing structural materials with excellent properties and functional materials with special properties. Structural materials mainly use their strength, toughness, hardness, elasticity, and other mechanica…
Entering 202 1 , what measures should the global economy take to meet the challenges under the influence of epidemic? And how can the recovery model be successfully launched? Global uncertainties and unstable factors are increasing. The complexity mu…