To design a team of robots which is able to perform given tasks is a great concern of many members of robotics community. There are many problems left to be solved in order to have the fully functional robot team. Robotics community is trying hard to solve such problems (navigation, task allocation, communication, adaptation, control, ...).
The car-sharing concept originated in Switzerland in 1987, and one of the largest car-sharing opera-
tions in the world is still run by Mobility Switzerland, in close partnership with the Swiss Federal
Railway. It runs a fleet of 1,650 cars in more than 930 locations, and has enrolled more than 58,000
members. As well as its size, the Swiss program has enjoyed enormous success in influencing travel
behavior. Surveys show that members who gave up their car after joining the car-sharing program
increased their transit usage by 35%, from 3,560 miles per year to 4,810 miles per year.
Engineering is a subject that ranges from large collaborations to small individual projects. Almost all engineering projects are beholden to some sort of financing agency: a company, a set of investors, or a government. The few types of engineering that are minimally constrained by such issues are pro bono engineering and open design engineering.
Engineering, much like other science, is a broad discipline which is often broken down into several sub-disciplines. These disciplines concern themselves with differing areas of engineering work. Although initially an engineer will usually be trained in a specific discipline, throughout an engineer's career the engineer may become multi-disciplined, having worked in several of the outlined areas. Engineering is often characterized as having four main branches:
Composites or composite materials are a combination of materials which provide different physical characteristics than either material separately. Composite material research within mechanical engineering typically focuses on designing (and, subsequently, finding applications for) stronger or more rigid materials while attempting to reduce weight, susceptibility to corrosion, and other undesirable factors. Carbon fiber reinforced composites, for instance, have been used in such diverse applications as spacecraft and fishing rods....
Bài 1: Khoanh tròn vào đáp án đúng.
1. A. my B. two C. five D. four
2. A. father B. mother C. ruler D. brother
3. A. ball B. fish C. robot D. ship
4. A. bedroom B. bathroom C. living room D. classroom
5. A. book B. pen C. big D. eraser