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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
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长春光学精密机械与物... [3]
南海海洋研究所 [1]
海洋研究所 [1]
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会议论文 [3]
期刊论文 [2]
专利 [1]
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Polyketide-derived metabolites from the sponge-derived fungus Aspergillus sp F40
期刊论文
OAI收割
PHYTOCHEMISTRY LETTERS, 2018, 卷号: 27, 页码: 74, 77
作者:
Liu, Yong-Hong
;
Lin, Shu-Ting
;
Tian, Yong-Qi
;
Kumaravel, Kaliaperumal
;
Zhou, Hong
|
收藏
|
浏览/下载:23/0
|
提交时间:2019/08/28
Sponge-derived fungus
Aspergillus sp F40
Polyketide
Antibacterial
一种从泡叶藻中提取制备低分子岩藻聚糖硫酸酯的方法
专利
OAI收割
专利类型: 发明, 专利号: CN201210424580.8, 申请日期: 2014-05-14, 公开日期: 2014-05-14
韩丽君
;
袁毅
;
郭书举
;
曲桂艳
;
刘旭
收藏
|
浏览/下载:71/0
|
提交时间:2014/08/04
一种从泡叶藻中提取制备低分子岩藻聚糖硫酸酯的方法
酸浸泡后的泡叶藻固体继续加入其体积3‑6倍的水溶液
2)将上层漂浮物调节至pH5.5‑6.5
将上述依次经稀酸和水浸泡后固态藻体采用纳米高压均质机进行细胞破碎
3)将上述合并液
4)将上述岩藻聚糖硫酸酯粗干品加入其3‑5倍重量的蒸馏水中进行溶解
其特征在于:1)将泡叶藻原料于40‑60℃下浸泡提取在泡叶藻原料干藻重量6‑10倍的稀盐酸溶液中1.3‑4.8h
搅拌浸泡4‑7h
在经过滤或高速离心
破碎后进行离心分离收集上清液B
过滤液A和上清液B混合均匀后进行超滤去除盐分
溶解后通过装有DEAE‑Sepharose F.F.的阴离子交换树脂柱进行洗脱
稀酸浸泡液待用
收集水浸泡液
收集过滤液A
而后超滤浓缩至原料重量的1/2体积(V/W)
收集洗脱液透析后于55‑65℃低温浓缩并冷冻干燥获得
保留上层漂浮物
将稀酸浸泡和水浸泡液合并待用
浓缩液进行醇沉淀
即得到原藻重量1.5‑2.3%的岩藻聚糖硫酸酯。
沉淀物干燥
即为岩藻聚糖硫酸酯粗干品
A signal process system for photoelectric encoder based on C8051F021 MCU (EI CONFERENCE)
会议论文
OAI收割
2nd World Congress on Computer Science and Information Engineering, CSIE 2011, June 17, 2011 - June 19, 2011, Changchun, China
作者:
Gao X.
收藏
|
浏览/下载:26/0
|
提交时间:2013/03/25
In order to minimize the size of photoelectric encoder
a signal process system was designed and C8051F021 MCU was its core device. To begin with
the processing electrocircuit and the data processing software used for the 16-bit encoder was developed. Then the feasibility of this system was verified by experiment. The experimental result proves that the signal process system was simple in structure and reliable. The size of the electrocircuit was 40mm.The precision of the 16-bit photoelectric encoder is 22.4". 2012 Springer-Verlag Berlin Heidelberg.
Design and simulation of CMOS star sensor lens with large relative aperture and wide field (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
Zhong X.
;
Jin G.
收藏
|
浏览/下载:61/0
|
提交时间:2013/03/25
A 50mm focal length
F/1.25
Gaussian type optical system is designed in this paper
which has 20field of view. Actual star image adding optical cross-talk effect of CMOS(Complementary Metal Oxide Semiconductor)
detector is simulated by non-sequential ray tracing in ZEMAX optical design and analysis software to evaluate its performance. The distortion relative to image spot centriod is introduced and calculated by simulated star images
which is less than 0.03% of lens in this paper. Thermal adaptability is discussed by opt-mechanic thermal analysis
which shows the RMS spot radius of marginal filed changes less than 0.7m under 10C temperature gradient
and changes less than 1m during homogeneous temperature changing from 40C to 40C. The results of analyses and simulations show the design of this lens can achieve the requirement of high precision CMOS star sensor well. 2011 IEEE.
Design of the infrared dual-band athermalized optical system based on HDE (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications, June 17, 2009 - June 19, 2009, Beijing, China
作者:
Zhang L.
;
Sun Q.
;
Wang H.
;
Wang H.
;
Wang H.
收藏
|
浏览/下载:97/0
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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.
F-40的辐射交联及其交联度的XPS表征
期刊论文
OAI收割
辐射研究与辐射工艺学报, 1987, 卷号: 5, 期号: 2, 页码: 36-38
张万喜
;
张月芳
;
孙家珍
;
陈传正
;
孙鹰
收藏
|
浏览/下载:19/0
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提交时间:2012/06/14
辐射交联
XPS
凝胶化剂量
F-40
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