摘要：股骨头坏死发生塌陷,进而导致髋关节退变,需要行全髋关节置换术。有报道称二磷酸盐疗法可预防股骨头坏死发生塌陷,作者持怀疑态度,设计了一个前瞻性随机对照研究,纳入110例SteinbergⅠ或Ⅱ期股骨头坏死患者,随机分为唑来膦酸组（55例）和对照组（55例）,唑来膦酸组患者每年静脉注射5mg唑来膦酸,为期2年,对照组无此药物治疗。

摘要：Numerical simulation technology was applied for optimizing the casting design and conditions in large cast iron castings for marine engine. By the simulation of mold filling and solidification sequences the problems of the previous casting conditions were analyzed and marked improvements for large cylinder liner parts were derived from these results. Especially the amount and positions of chills were optimized to increase the mechanical properties and to minimize the shrinkage and microporosity in the castings. Ultrasonic testing, penetration testing and mechanical property testing were carried out for the parts with the modified casting conditions. It showed that no defects in the castings were found and the productivity could be distinctly increased. The mechanical properties satisfied also the specification demanded.

摘要：In semiconductor manufacturing process, probe station that is testing equipment is important. Inspection step is for detecting defects on semiconductor before the packaging. Probe card is a part of probe station and contains probe tip that contacts to semiconductor. Through probe tip, it can inspect defects of semiconductor. In this paper, optimization method is used with response surface analysis to design MEMS type probe tip. And fabricating probe tip uses maskless lithography, electro-plating and lapping process.

摘要：汽车轮胎胎面由许多花纹块和沟槽构成复杂图案,以提供轮胎的各项行驶性能,如牵引性能、制动性能、乘坐舒适性及排水性。轮胎与地面直接接触的面积有明信片大小,造成胎面磨耗的原因是轮胎与地面不可避免的滑动摩擦。轮胎磨耗不仅降低了行驶性能以及缩短轮胎寿命,

摘要：在中国和印度边远地区，治疗心血管病的经济负担十分沉重，但是这些地区经济落后，医疗保健资源有限。该研究旨在设计和评估由社区医护人员（community health workers，CHW）实施，