Results 151 to 160 of about 730,950 (199)

一种利用水华蓝藻提取多糖的方法

, 2007
本发明公开了一种利用水华蓝藻提取多糖的方法。首先是水华蓝藻的机械收获、经浓缩、脱水、干燥、粉碎；其次是多糖的提取；第三是收集藻多糖溶液；第四是多糖的纯化；第五是多糖的干燥。本发明方法易行、操作方便、设备简单、产量高、产品质量好 ...
沈银武, 黄泽波, 刘永定, 谢作明, 李敦海   +4 more
core  

一种适用于猪胰岛的分离提取液及其制备和应用

, 2014
本发明提供了一种适用于猪胰岛的分离提取液及其制备方法。其特征在于该分离提取液载氧量高，可以解决胰岛分离提取过程中存在的缺氧问题。该分离提取液包含以下成分：首先以基础培养基或平衡盐溶液为水相，并针对分离提取猪胰岛的要求，添加胶原酶、氯化钙、DNA酶、牛血清白蛋白、全氟碳化合物、乳化剂、抗菌剂。本发明的分离提取液不仅可以缓解胰岛提取过程中的缺氧程度，而且胰岛的存活率 ...
李娜, 张建斌, 马小军, 马颖, 李珅, 于炜婷, 张英   +6 more
core  

[Review on identity feature extraction methods based on electroencephalogram signals]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2021
Zhong W, An X, Di Y, Zhang L, Ming D.
europepmc   +1 more source

[A GA-BP neural network model based on spectrum-effect relationship for assessing spectrum-effect score and quality evaluation of Cassia seeds extract]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Yan H, Wang H, Zou C.
europepmc   +1 more source

[Recent applications of porous-material-based adsorbents for extracting pesticide residues from environmental and foodstuff samples]. [PDF]

Se Pu
Xu QT, Yu M, Xie C, Cao Y, Mei SR.
europepmc   +1 more source

A fusion model of manually extracted visual features and deep learning features for rebleeding risk stratification in peptic ulcers. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Zhou P, Yang W, Li Q, Guo X, Fu R, Liu S.   +5 more
europepmc   +1 more source

无人机监测东北黑土区切沟形态的最优参数配置

Shuitu Baochi Xuebao
[目的] 东北黑土区切沟侵蚀不断蚕食耕地资源,威胁我国粮食安全。无人机技术的发展为沟蚀监测提供有效手段,但获取数据分辨率越高耗时越长,如何配置无人机参数,使其既能满足精度要求又能提高航摄效率是当前需要解决的问题。[方法] 选择东北漫川漫岗区的鹤北流域为研究区,以实地断面测量数据为验证值,通过评估不同分辨率、不同飞行航向及不同无人机数据提取的切沟参数精度,探究不同无人机参数配置的适用条件。[结果] (1)与实测值相比,分辨率1 cm数据提取的切沟参数精度最高 ...
唐杰, 谢云, 刘川, 张岩
doaj  

[Determination and antioxidant analysis of seven flavonoids in bamboo-leaf extracts]. [PDF]

Se Pu
Gu LL, Yao X, An RM, Guo XF.
europepmc   +1 more source

[Gynostemma pentaphyllum ethanol extract ameliorates motor dysfunction in a Parkinson's disease mouse model through inhibiting neuronal apoptosis]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Zhao T, He L, Yan S, Fan P, Zhang C, Zeng L.   +5 more
europepmc   +1 more source

[Rapid extraction and detection of five alkaloids in dried khat by solvent extraction-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry]. [PDF]

Se Pu, 2023
Shi HF, Xu BP, Xu CX, Zhou XQ, Xu HF.
europepmc   +1 more source