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检索条件"作者=LI xuwen"
1141 条 记 录,以下是81-90 订阅
排序:
Semisynthesis and Cytotoxicity Evaluation of a Series of Ocotillol Type Saponins and Aglycones from 20(S)-Ginsenoside Rg2, Rhl, Protopanaxatriol and Their 20(R)-Epimers
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Chemical Research in Chinese Universities 2016年 第1期32卷 35-40页
作者: YANG Jie YU Xue CAI Xiaoxiang CHEN Yanxin ZANG Huiming li xuwen JIN Yongri College of Chemistry Jilin University Changchun 130021 P. R. China College of Life Sciences Jilin University Changchun 130012 P. R. China Hangzhou Innovative Chinese Medicine Standardization Research Institute Co. Ltd. Hangzhou 310053 P. R. China
Abstract With the oxidation treatment, eighteen compounds were separated from 20(S)-ginsenoside Rg2, Rhl, pro- topanaxatriol(PPT) and their 20(R)-epimers in total and cytotoxicity of most of them was evaluated a... 详细信息
来源: 评论
In Vitro Study of the Binding of Taxifolin to Bovine Serum Albumin and the Influence of Common Ions on the Binding
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JOURNAL OF SOLUTION CHEMISTRY 2010年 第4期39卷 482-494页
作者: Shi, Xiaolei li, xuwen Sun, Yantao Wei, Wei Yang, Ruijie Zhang, Hanqi Jin, Yongri Jilin Univ Coll Chem Changchun 130012 Peoples R China
The interaction between taxifolin and bovine serum albumin (BSA), and the effects of some common ions on their interaction, were investigated by fluorescence and UV-visible absorption spectroscopy. The results indicat... 详细信息
来源: 评论
企业战略变革过程中的冲突影响研究——基于认知的视角
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系统工程理论与实践 2019年 第5期39卷 1246-1255页
作者: 李旭文 齐中英 哈尔滨工业大学管理学院 哈尔滨150001 中国航天科技集团有限公司 北京100048
本研究基于认知的视角,从理论上分析了企业战略变革过程中冲突的形成与影响,提出了战略变革知觉、战略变革响应与冲突关系假设模型,并开展了实证分析.研究表明,战略变革知觉与战略变革响应正相关,冲突在两者之间起到中介作用.
来源: 评论
AN IMPROVED INTER-PREDICTION MOTION ESTIMATION ALGORITHM OF AVS
AN IMPROVED INTER-PREDICTION MOTION ESTIMATION ALGORITHM OF ...
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2nd IEEE International Conference on Broadband Network and Multimedia Technology
作者: Wu Qiang Xu Ying Jia Kebin li xuwen Beijing Univ Technol Coll Elect & Control Engn Beijing Peoples R China
Research on inter-prediction algorithms is an important respect in the real-time video codec technology. In the regarded studies, the prediction error can be reduced by incorporating high accuracy estimation and compe... 详细信息
来源: 评论
Adaptive Temporal High-pass Infrared Non-uniformity Correction Algorithm Based on Guided Filter  2021
Adaptive Temporal High-pass Infrared Non-uniformity Correcti...
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7th International Conference on Computing and Artificial Intelligence, ICCAI 2021
作者: Zhang, Y.I. li, xuwen Zheng, Xin Wu, Qiang Beijing University of Technology Beijing China
In the scene-based infrared focal plane non-uniformity correction algorithm, the temporal high-pass filter non-uniformity correction algorithm is widely cited in various system platforms due to its low hardware platfo... 详细信息
来源: 评论
An efficient strategy based on two-stage chromatography and in vitro evaluation for rapid screening and isolation of acetylcholinesterase inhibitors from Scutellaria baicalensis Georgi
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JOURNAL OF SEPARATION SCIENCE 2022年 第6期45卷 1170-1184页
作者: Hou, Wanchao liu, Chunming li, Sainan Zhang, Yuchi Jin, Yongri li, xuwen liu, Zhen Niu, Huazhou Xia, Jianli Jilin Univ Coll Chem Changchun Jilin Peoples R China Changchun Normal Univ Cent Lab Changchun Jilin Peoples R China
The extraction of Scutellaria baicalensis Georgi was investigated using the response surface methodology-genetic algorithm mathematical regression model, and the extraction variables were optimized to maximize the fla... 详细信息
来源: 评论
Determination of common ginsenosides in Kang'ai injection by aqueous two-phase extraction with deep eutectic solvents and HPLC-UV/DAD
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MICROCHEMICAL JOURNAL 2018年 137卷 302-308页
作者: li, Peng Zhao, Pengyun liu, Weijie Jiang, Yifu Wang, Wenjiao Bao, Longyue Jin, Yongri li, xuwen Jilin Univ Coll Chem Changchun 130012 Jilin Peoples R China
In this work, four kinds of deep eutectic solvents (DESs), composed of choline chloride (ChCl) and several alcohols, were synthesized and characterized by H-1 NMR and FT-IR spectra. Based on DES ( ChCl and 1,4-butaned... 详细信息
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Marine sponges of the genus Stelletta as promising drug sources: chemical and biological aspects
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Acta Pharmaceutica Sinica B 2019年 第2期9卷 237-257页
作者: Qihao Wu Bastien Nay Min Yang Yeke Ni Hong Wang ligong Yao xuwen li State Key Laboratory of Drug Research Shanghai Institute of Materia Medica Chinese Academy of Sciences College of Pharmaceutical Science Zhejiang University of Technology Laboratoire de Synthèse Organique UMR 7652 CNRS Ecole Polytechnique Université Paris-Saclay
Marine sponges of the genus Stelletta are well known as rich sources of diverse and complex biologically relevant natural products, including alkaloids, terpenoids, peptides, lipids, and steroids. Some of these metabo... 详细信息
来源: 评论
In-Situ Transformed Ni, S-Codoped CoO from Amorphous Co-Ni Sulfide as an Efficient Electrocatalyst for Hydrogen Evolution in Alkaline Media
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ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2019年 第14期7卷 12501-12509页
作者: Lu, Wangting li, xuwen Wei, Feng Cheng, Kun li, Wenhui Zhou, Youhua Zheng, Wanquan Pan, Lei Zhang, Geng Jianghan Univ Inst Interdisciplinary Res 8 Sanjiaohu Rd Wuhan 430056 Hubei Peoples R China Jianghan Univ Sch Chem & Environm Engn 8 Sanjiaohu Rd Wuhan 430056 Hubei Peoples R China Univ Paris Saclay Univ Paris Sud CNRS Inst Sci Mol Orsay F-91405 Orsay France Jianghan Univ Sch Life Sci 8 Sanjiaohu Rd Wuhan 430056 Hubei Peoples R China Huazhong Agr Univ Coll Sci Dept Chem 1 Shizishan St Wuhan 430070 Peoples R China
Amorphous materials have recently received much attention as catalysts for electrochemical reactions. However, there are relatively few reports focused on the structure change of amorphous catalysts during the catalys... 详细信息
来源: 评论
Studies on interaction between flavonoids and bovine serum albumin by spectral methods
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JOURNAL OF LUMINESCENCE 2010年 第4期130卷 637-644页
作者: Shi, Xiaolei li, xuwen Gui, Mingyu Zhou, Hongyu Yang, Ruijie Zhang, Hanqi Jin, Yongri Jilin Univ Coll Chem Changchun 130012 Peoples R China
The interaction between three kinds of flavonoids and bovine serum albumin (BSA) was investigated by fluorescence and UV-vis absorption spectrometry. The results indicated that flavonoids have strong ability to quench... 详细信息
来源: 评论