A railway monitoring system firstly includes an optical fiber. A first part of the fiber is attachable to one of a pair of tracks of a rail, and a characteristic of the first part of the fiber is variable in correspondence to variance of a characteristic of said one track where the first part of fib.....
[更多]
The invention concerns a lock for preventing monkeys from opening a litter stockade
[更多]
An magnetorheological damper useful in structural vibration control has a damper body and a moveable portion relative to the damper body. The damper includes an magnetorheological material contained within the damper body for resisting movement of the moveable portion. Rheology changes can be genera.....
[更多]
| |<首頁 <-上一頁 下一頁-> 末頁>| |
