Liquid metal imbalance of the surface tension induces a pressure difference between the rear and the head, which produces a thrust to drive the droplet toward the head; at the same time, the hydrogen produced in the electrochemical reaction process also further raises the thrust. The discovery of this phenomenon laid the technical foundation for the development of intelligent motors, vascular robots, fluid pumping systems, flexible actuators and even more complex liquid metal robots. Liquid metal Liquid metal consists of alloys with very low melting points which form a eutectic that is liquid at room temperature. The standard metal used to be
Common Technical Document Pharmaceuticals for Human Use (ICH). The Common Technical Document is divided into five modules: Detailed subheadings for each Module are specified for all jurisdictions. The contents of Module 1 and certain subheadings of other Modules will differ, based on national requirements. After the United States, European Union and Japan, the CTD has been adopted by several other countries including Canada and Switzerland. The Paper CTD is destined to be replaced by its electronic counterpart, the eCTD. Common Technical Document The Common Technical Document (CTD) is a set of specification for application dossier for the registration of Medicines and designed to