资讯

Abstract: Hand-drawn diagrams have been a standard visual communication tool in many disciplines, including architectural design, engineering, and education. The inherent diversity and absence of ...
Abstract: As future hydrogen networks will be strongly linked to the electricity system via electrolysers and hydrogen power plants, challenges will arise for their operation. A suitable response to ...
Background: A large population of women have intrauterine contractive devices (IUCDs) as a result of China’s national family planning policy; this has created a significant economic burden and raised ...