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浏览/检索结果: 共3条，第1-3条 帮助 限定条件 发表日期：2009     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 一种以浒苔为原料生产沼气的方法 专利 专利类型: 发明, 专利号: CN200810157676.6, 申请日期: 2009-04-29, 公开日期: 2009-04-29 冯大伟; 秦松; 李富超; 姜鹏; 陈华新; 杨庆利 收藏  |  浏览/下载：20/0  |  提交时间：2014/08/04 1. 一种生产沼气的方法  (2)对步骤(1)所得的浒苔进行粉碎处理  (3)将步骤(2)所得的浒苔投入到发酵装置中  (4)发酵装置内加淡水  (5)加入碱  (6)将发酵装置密封  其特征在于：以浒苔为原料  粉碎至粒径为0.5～2mm  加入接种物  并调整发酵装置内总固形物含量为2.5％～10％  控制步骤(4)中的混合物初始pH值在6.5～7.5  控制发酵温度在35±3℃。  包括以下步骤：(1)用水对浒苔进行漂洗  接种物TS(总固体含量)与浒苔TS(总固体含量)的重量比为1∶1～5  除去盐分和泥沙等杂质   Design of the infrared dual-band athermalized optical system based on HDE (EI CONFERENCE) 会议论文 International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications, June 17, 2009 - June 19, 2009, Beijing, China Dong K.; Zhang L.; Wang J.; Wang H.; Sun Q.; Lu Z. 收藏  |  浏览/下载：87/0  |  提交时间：2013/03/25 A dual-band infrared optical system adopting an uncooled LW infrared detector and a cooled MW infrared detector is designed and manufactured  while in the LW IR band the F/# is 1 and the focal length is 114 mm  based on the athermal ability and special diffractive properties of harmonic diffractive elements. The design shows in the MW IR band the F/# is 2 and the focal length is 72 mm  for the temperature range -40 70 the MTF value is over 0.5 at 10 lp/mm. Finite element method is applied to the opto-mechanic structure of the system for thermal analysis  for the temperature range -40C 70C the MTF value is over 0.4 at 20 lp/mm  which confirms the imaging ability of the system in a wide temperature range. 2009 SPIE.   A spherical catadioptric telescope system based on Cooke corrector group (EI CONFERENCE) 会议论文 Novel Optical Systems Design and Optimization XII, August 3, 2009 - August 4, 2009, San Diego, CA, United states Zhang J.; Kang Y.; Liu W. 收藏  |  浏览/下载：26/0  |  提交时间：2013/03/25 To obtain a number of advantages in fabrication  testing and alignment  many designs in which spherical mirrors replace classical Cassegrain-form aspheric mirrors are present in the literature. However  spherical mirrors suffer from substantial spherical aberration and thereby require some form of corrector group. But in this case  the question encountered is that of making the basic optical configuration more complex. In this paper  a new design based on Cooke corrector group is presented for eliminating spherical aberration  which is believed to provide higher performance with less complexity than previous approaches. Besides  the cost and fabrication period will be extremely decreased. The telescope system using corrector group here can achieve good optical performance with f# of 10  full field of 0.5  obscuration of 1/3 and MTF (Modulation Transfer Function) of 0.48 corresponding to 50@lp/mm. 2009 Copyright SPIE - The International Society for Optical Engineering.