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浏览/检索结果: 共3条，第1-3条 帮助 限定条件 内容类型：会议论文     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 生活垃圾焚烧飞灰水泥窑协同处置技术 会议论文 中国环境科学学会2009年学术年会论文集（第二卷）, 中国环境科学学会2009年学术年会, 中国湖北武汉, CNKI, 中国环境科学学会 金宜英; 王雷; 聂永丰; 凌永生; 王向荣 收藏  |  浏览/下载：1/0 Study on the azimuth bearing scheme of a large Alt-azimuth telescope (EI CONFERENCE) 会议论文 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, April 26, 2010 - April 29, 2010, Dalian, China Wang H.; Zhang J.; Dai S. 收藏  |  浏览/下载：30/0  |  提交时间：2013/03/25 The azimuth bearing schemes in typical large Alt-azimuth telescopes  especially the 3.5-m APO telescope and the 4.1-m SOAR telescope were analyzed. A scheme of high-angular contacted thrust ball bearing integrated with a radial ball bearing was put forward. According to the Hertz contact theory  the corresponding parameters were designed for engineering application. The static performance parameters  within the range of 60 85 original contact angle were calculated. Compared with the traditional plane thrust ball bearing  the results shows that the high-angular (80) contact thrust ball bearing has more benefits at bearing strength and rigidity for large telescope. The 1500mm diameter prototyping bearing shows good performance  including the axial jitter is 0.009mm  the radial jitter is 0.006mm  the maximum starting torque without load is 30N·m  and the load capacity is more than 30t  which offers advanced technique path for the buildup of the high precision azimuth shafting and the whole telescope system. 2010 Copyright SPIE - The International Society for Optical Engineering.   难浸金矿石常温常压强化碱浸预处理新工艺研究 会议论文 2002全国冶金物理化学学术会议, 鞍山, 2002-09-01 孟宇群; 吴敏杰; 宿少玲; 王隆保 收藏  |  浏览/下载：35/0  |  提交时间：2013/08/21 难浸金矿石  常温常压  强化碱浸  预处理