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Chinese Chemical Letters 2001年第1期12卷 1-4页

作者： yang, jin song Kondo, Kazuhiro Murakami, Yasuoki Dept. of Chem. of Med. Nat. Products School of Pharmacy W. China Univ. of Medical Sciences Chengdu 610041 China School of Pharmaceutical Sciences Toho University Funabashi Chiba 274 Miyama 2-2-1 Japan

First application of optically active trans-1,2-Bis(2-aminophenyl)cyclopentane 2 for asymmetric reaction, enantioselective N-acetylation of secondary alkyl amines, is described. This acetylation with tetraacetylated 3... 详细信息

关键词： First Application of Optically Active trans-1,2-Bis Enantioselective N-Acetylation of Secondary Alkyl Amines

Calibration of Soil Electromagnetic Conductivity in Inverted Salinity Profiles with an Integration Method

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Pedosphere 2007年第2期17卷 246-256页

作者： YAO Rong-Jian yang jin-song LIU Guang-Ming Institute of Soil Science Chinese Academy of Sciences Nanjing 210008 （China）.

Various calibration methods have been propounded to determine profiles of apparent bulk soil electrical conductivity (ECa) and soil electrical conductivity of a saturated soil paste extract (ECe) or a 1:5 soil water extract (EC1:5) using an electromagnetic induction instrument (EM38). The modeled coefficients, one of the successful and classical methods hitherto, were chosen to calibrate the EM38 measurements of the inverted salinity profiles of characteristic coastal saline soils at selected sites of Xincao Farm, Jiangsu Province, China. However, this method required three parameters for each depth layer. An integration approach, based on an exponential decay profile model, was proposed and the model was fitted to all the calibration sites. The obtained model can then be used to predict EC1:5 at a certain depth from electromagnetic measurements made using the EM38 device positioned in horizontal and vertical positions at the soil surface. This exponential decay model predicted the EC1:5 well according to the results of a one-way analysis of variance, and the further comparison indicated that the modeled coefficients appeared to be slightly superior to, but not statistically different from, this exponential decay model. Nevertheless, this exponential decay model was more significant and practical because it depended on less empirical parameters and could be used to perform point predictions of EC1:5 continuously with depth.

关键词： coastal saline soils electromagnetic conductivity exponential decay model integration calibration method inverted salinity profiles

Structure of 6-Epiforsticine and Revision of the Stereochemistry of Forsticine

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Chinese Chemical Letters 2000年第11期11卷 1003-1004页

作者： Wang, Feng Peng Li, Zheng Bang Chen, Ji Jun yang, jin song Dept. of Chem. of Med. Nat. Products School of Pharmacy W. China Univ. of Medical Sciences Chengdu 610041 China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650204 China

A norditerpenoid alkaloid, 6-epiforsticine, has been isolated from the roots of the plants Aconitum hemsleyanum var. pengzhouense and A. kuzsnezoffii and its structure has been established as 1 on the basis of 2D-NMR ... 详细信息

关键词： Structure of 6-Epiforsticine and Revision of the Stereochemistry of Forsticine

Features and values of geological heritage resources in Shunping County,Hebei Province

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Journal of Groundwater Science and Engineering 2020年第4期8卷 349-357页

作者： yang jin-song LIU Zhe WANG Xiang-dong ZHAO Hua song lei LIU Tai-bei WANG Cheng-min ZHANG Peng Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological SciencesShijiazhuang 050061China Key Laboratory of Quaternary Chronology and Hydro-Environmental Evolution China Geological SurveyShijiazhuang 050061China Institute of Geology China Earthquake AdministrationBeijing 100037China Qiqihar University QiqiharHeilongjiang Province 161006China

Hebei Province is rich in geological heritage resources due to its diverse landforms and unique natural ***,detailed investigation and study of the resources are still limited,and a systematic survey conducted on a small scale has not been fully *** this paper,the resource types and characteristics of the geological heritage in Shunping County are systematically discussed,on the basis of field investigation and scientific *** reference to the existing criteria for geological heritage resources survey,the heritage values and corresponding levels were assessed by using multi-factor quantitative evaluation *** results show that there are 33 geological heritage sites in Shunping County,which fall into 3 categories,10 classes and 17 *** them,2 heritage sites are above the provincial level,14 heritage sites are at the provincial level and 17 ones are below the *** heritage sites are not only natural resources with great tourism potential,but also valuable asset in geological research,human history,ecological conservation,scientific education and some other *** is hence of great significance to conduct the scientific and reasonable appraisal for having a better understanding,good protection and development of the geological heritage resources in Hebei Province.

关键词： Geological heritage Landscape assessment Hebei Province Shunping County Taihang Mountain

维普期刊数据库评论

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光学镜头结构智能化设计系统

光学精密工程 2005年第Z1期13卷 21-24页

作者：杨近松胡君中国科学院长春光学精密机械与物理研究所吉林长春130033

开发了光学镜头结构智能化设计系统,以黑盒构件技术为主导设计思想,采用VC++语言自主开发了光学设计软件和机械设计软件,利用AutoCAD/AutoIS系统提供的接口函数,实现光学、机械设计软件和AutoCAD/AutoIS系统的集成与链接,应用多数据库... 详细信息

开发了光学镜头结构智能化设计系统,以黑盒构件技术为主导设计思想,采用VC++语言自主开发了光学设计软件和机械设计软件,利用AutoCAD/AutoIS系统提供的接口函数,实现光学、机械设计软件和AutoCAD/AutoIS系统的集成与链接,应用多数据库通信技术实现系统各数据表间的数据通信。通过系统自动完成的设计实例验证系统的有效性,该系统的开发实现了光学镜头结构的参数化、自动化和智能化的系统集成设计目标。

关键词：光学镜头结构智能化设计系统集成

Granulocyte-macrophage colony-stimulating factor and interleukin 4 induce the malignant transformation of the bone marrow- derived human adult mesenchymal stem cells

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Chinese Medical Journal 2011年第5期124卷 729-733页

作者： ZHOU Xiao-gang yang Yi yang jin-song ZHOU Jian FANG Tao-lin DAI Wen-da CHEN Zheng-rong Department of Orthopaedic Surgery Zhongshan Hospital Fudan University Shanghai 200032 China Department of Orthopedics The First Affiliated Hospital of Gaungxi Medical University Nanning Guangxi 530021 China

Background The purpose of the study was to examine the effects of granulocyte-macrophage colony-stimulating factor （GM-CSF） and interleukin 4 （IL-4） on the bone-marrow-derived human adult mesenchymal stem cells （hMSCs）. Methods The hMSCs were isolated and cultured with GM-CSF and IL-4 for a period of one month. A single colony of transformed cells was then isoloated and their phenotype was characterized by morphology, surface marker expression, and in vivo *** After one month culture, the transformed mesenchymal cells exhibited the morphology and phenotype similar to those of tumor cells, and also caused multiple fast growing lung deposits when it was injected into immunodeficient *** Cytokines-driven malignant transformation of hMSCs may be a useful model for studying signaling pathways initiating malignant transformation of hMSC.

关键词： bone marrow-derived mesenchymal stem cells malignant transformation interleukin 4 granulocyte-macrophage colony-stimulating factor

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沐浴业发展的中外比较

旅游学刊 2008年第9期23卷 67-72页

作者：杨劲松北京联合大学旅游学院

沐浴业是一个重要但又常常被忽视的休闲部门。近年来中国沐浴业发展迅速,它的发展模式逐渐成为新的研究焦点。本文在建立沐浴业发展模型的基础上,进行了沐浴业发展的中外比较,指出了对中国沐浴业发展的启示。

关键词：沐浴业发展比较

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国外休假制度及其对中国的借鉴

旅游学刊 2006年第11期21卷 19-24页

作者：杨劲松北京联合大学旅游学院北京100101

中国休假制度的改进和完善,离不开对国际经验的借鉴。本文首先对国外休假制度和休假状况进行了系统的梳理和分析,接着针对中国情况,深入探究了其对中国休假制度的借鉴作用。本文从新的视角审视了中国休假制度,拓展了休假制度研究的领域... 详细信息

中国休假制度的改进和完善,离不开对国际经验的借鉴。本文首先对国外休假制度和休假状况进行了系统的梳理和分析,接着针对中国情况,深入探究了其对中国休假制度的借鉴作用。本文从新的视角审视了中国休假制度,拓展了休假制度研究的领域,并且指明了中国休假制度完善的方向。

关键词：休假制度比较借鉴

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基于“零度”偏离理论的英语写作课程研究

外语电化教学 2012年第2期 41-46页

作者：杨劲松广东医学院外语教学部广东东莞523808

本研究针对英语写作课程的问题与现状,提出了以课程的"零"目标、"零"主体、"零"教材、"零"教室等理念践行自下而上的英语写作零度课程,旨在让学习者从自上而下的灌输模式中解放出来,回归教育的原点,即以实现人的解放兴趣为目的,并实现... 详细信息

本研究针对英语写作课程的问题与现状,提出了以课程的"零"目标、"零"主体、"零"教材、"零"教室等理念践行自下而上的英语写作零度课程,旨在让学习者从自上而下的灌输模式中解放出来,回归教育的原点,即以实现人的解放兴趣为目的,并实现以教师为中心到以学习者为中心,以讲授知识为重点到以完成主体塑造为重点的两个转变,这样课程的意义在不断的自我否定中得以建构和提升。

关键词：英语写作零度课程教育原点

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酸枣仁中三萜皂苷的分离和结构研究

有机化学 2008年第1期28卷 69-72页

作者：王建忠杨劲松四川大学华西药学院成都610041

从酸枣仁(Zizyphus jujuba *** Hu)中分离得到四个三萜皂苷,分别鉴定为酸枣仁皂苷G(1,ju- juboside G),酸枣仁皂苷A(2,jujuboside A),酸枣仁皂苷B(3,jujuboside B)和酸枣仁皂苷A_(?)(4,jujuboside A_(?)).其中酸枣仁皂苷G与其它酸枣仁皂苷不同,为新的酮基达玛烷型三萜皂苷.运用现代波谱技术,包括二维核磁共振谱和高分辨质谱,对上述化合物的结构进行了确证.

关键词：酸枣仁鼠李科酮基达玛烷型皂苷酸枣仁皂苷G