In this article, principle and mathematical method of determining the phase fractions of multiphase flows by using a dual-energy γ-ray system have been describ
Security of wireless sensor networks has received considerable attention. It is a critical challenge to find out suitable encryption schemes for wireless sensor
Narrow gap welding has merits of lower residual stress and distortion, and superior mechanical properties of joints.A major problem of this process is the lack
With surface- and bulk-micromachining, an 8 × 8 mirrors array is designed, fabricated and tested,which is based on electro-thermal actuators and can be address
In order to estimate the motion errors of 5-axis machine center, the double ball bar (DBB)method is adopted to realize the diagnosis procedure. The motion error
A robust progressive image transmission scheme over broadband wireless fading channels is developed for 4th generation wireless communication systems (4G) in th
我科在2000年1月至2002年12月两年时间,共收治早产儿38例.其中体重2500克以上3例,1500克至2500克的26例,小于1500克的9例.硬肿症5例,窒息8例,肺炎6例,黄疸8例,缺血缺氧性脑病
目的:对于髋关节置换手术后的病人关节稳定性差,用自制防脱位支架限制可能造成脱位的各种危险动作,从而避免脱位及其他并发症的发生.方法:通过对20例人工关节置换病人术后使