Research of the active reflector antenna using laser angle metrology system

Active reflector is one of the key technologies for constructing large telescopes, especially for the millimeter/sub-millimeter radio telescopes. This article introduces a new efficient laser angle metrology system for the active reflector antenna of the large radio telescopes, with a plenty of active reflector experiments mainly about the detecting precisions and the maintaining of the surface shape in real time, on the 65-meter radio telescope prototype constructed by Nanjing Institute of Astronomical Optics and Technology (NIAOT). The test results indicate that the accuracy of the surface shape segmenting and maintaining is up to micron dimension, and the time-response can be of the order of minutes. Therefore, it is proved to be workable for the sub-millimeter radio telescopes.Comment: 10 pages, 15 figure

Operative coordination in one case of Intracranial hematoma removal combined with resection of spleen surgery

Objective: the authors summarized the operative coordination means which operated on the the same patients with Intracranial hematoma removal combined with resection of spleen surgery at the same time. Methods: From the perspectives of preoperotive preparation, hand-washing nurses and visiting nurse respectively, the paper elaborated the placement of sterile towels, personnel reasonable stance, the check and management of sterile items, etc. Results:The surgery was finished smoothly. Conclusion:To assist the surgery is a comprehensive test for nurses’ ability at the operating room. The work responsibility should be clearly arranged, and the principle of intraoperative sterile operation should be strictly followed.目的  总结1例颅内血肿清除术和脾切除术这两种手术在同一患者、同一时间施行时的手术配合方法。方法  分别从术前准备、洗手护士、巡回护士工作等角度进行阐述了无菌巾的铺设、人员的合理站位、无菌物品的清点和管理等。结果  手术配合顺利完成。结论  配合该手术是对手术室护士能力的综合考验，必须做到正确、清楚划分各组的工作区域，遵循术中无菌操作原则