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Agricultural Science and Technology Parks Initiated in China

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中国科学院院刊：英文版 2003年第4期17卷 230-235页

作者： chen yisheng(Institute of Policy and Management, CAS) InstituteofPolicyandManagement CAS

Agricultural S&T parks (ASTPs) constitute the bases for demonstrating modern agricultural prac-tice engaged in intensive production and commercial operations with S&T achievements as theirpillars and agricultural infrastructures as the mainstay. The emergence of ASTPs is a new economicphenomenon during the past decade, and among the 400-plus such parks, 36 are State ASTPs set upwith the approval of the State Council. These ASTPs have created a benign environmental conditionfor the advance of agricultural science and technology in China and for the development of new-and high-tech-based industries in the agricultural sector, and accordingly, they have played animportant role in promoting modern agriculture, in enlivening rural economy, in increasing the in-come of farmers, and in restructuring *** on a study of State ASTPs, this paper attempts to make a systematic study of the historyand current status of ASTPs and a study of policy issues related to their spatial distribution, charac-teristics of operation, and innovations in their development.

关键词：农业科学技术中国现代化

RESEARCH ON SCIENCE PARKS IN CHINA: 1984-1994

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Bulletin of the Chinese Academy of Sciences 1995年第3期9卷 252-256页

作者： chen yisheng(Institute of Policy and Management, CAS)

1. The development of science parks (SPs) in China has made big strides since the early 1980s, together with the initiation and development of the structural reforms carried out in the fields of the economy, science and technology, and education. Currently there are 52 SPs in China. They together with the special economic zones (SEZs) and the economical and technological develop ment zones (ETDZs), have given a powerful impetus toeconomic development in China by forming a new framework of accelerated economic development.

关键词： RESEARCH ON SCIENCE PARKS IN CHINA SPS CAS

The Development of Economic and Technological Zones in China

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Bulletin of the Chinese Academy of Sciences 2000年第4期14卷 228-230页

作者： chen yisheng(Institute of Policy and Management, the Chinese Academy of Sciences)

Economic and technological development zones (ETDZs) constitute special designated areas emerging in a period of economic transition characterized by the adoption of special policies and the creation of favorable environment conducive to the attraction of foreign capital and technology and to the development of an outward-oriented economy. At present, there are 41 State-level ETDZs, which together

关键词： The Development of Economic and Technological Zones in China

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中国的民营科技园区:类型和特点

科研管理 1999年第5期20卷 28-32页

作者：陈益升中国科学院科技政策与管理科学研究所北京100080

９０年代初期以来，民营科技园区在中国经济舞台上展现着顽强的生命力，成为培育和发展民营科技企业的重要基地。本文根据中国现有的民营科技园区建设和发展情况。

关键词：民营科技园区类型特点中国

Identification and characterization of chemical constituents in Mahuang Guizhi Decoction and their metabolites in rat plasma and brain by UPLC-Q-TOF/MS

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Chinese Herbal Medicines 2024年第3期16卷 466-480页

作者： Ping Wei Shiying Huang Juan Yang Mo Zhao Qiugu chen Xiaoyu Deng Jianping chen yisheng Li Pingshan District Maternal&Child Healthcare Hospital of Shenzhen Pingshan General Hospital of Southern Medical UniversityShenzhen 518118China Shenzhen Key Laboratory of Hospital Chinese Medicine Preparation Shenzhen Traditional Chinese Medicine HospitalThe Fourth Clinical Medical College of Guangzhou University of Chinese MedicineShenzhen 518000China Shenzhen Longgang Otorhinolaryngology Hospital Shenzhen 518100China

Objective:Mahuang Guizhi Decoction(MGD),an essential herbal pair in traditional Chinese medicine,is able to release cold,fever and asthma,mainly containing alkaloids,flavonoids,phenylpropanoids and amino ***,the absorption and distribution of these four category compounds in vivo still remained ***:In our research,we utilized UPLC-Q-TOF-MS technique to identify the constituents within MGD,as well as the prototypes of MGD and their metabolites absorbed in plasma and *** further profiled the drug-time curve of prototypes and metabolites of MGD both in plasma and ***:Our results showed that 105 constituents were characterized in *** of them could be absorbed into blood,and ten of them could be distributed into *** also discovered eight new bio-transformed metabolites in blood,and a half of which could pass through the blood–brain *** addition,all components detected in vivo could be absorbed and distributed ***:These findings provide an approachable method to analyze the potential bio-active compounds in MGD and their in vivo behaviors,which could promote the efficacious material basis study of MGD and the security of clinical utilization.

关键词： chemical constituents Mahuag Guizhi Decoction metabolites rat plasma and brain UPLC-Q-TOF-MS

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龚育之与科学学

科技进步与对策 2008年第1期25卷 1-3页

作者：陈益升中国科学院科技政策与管理科学研究所

我国著名的马克思主义理论家和中共党史专家龚育之先生于2007年6月12日在北京逝世。龚育之先生是我国科学学研究的奠基人之一和中国科学学与科技政策研究会的创始人之一。为了缅怀龚育之先生,中国科学学与科技政策研究会于12月26日在北... 详细信息

我国著名的马克思主义理论家和中共党史专家龚育之先生于2007年6月12日在北京逝世。龚育之先生是我国科学学研究的奠基人之一和中国科学学与科技政策研究会的创始人之一。为了缅怀龚育之先生,中国科学学与科技政策研究会于12月26日在北京举行了龚育之先生追思会。参加追思会的专家、学者50余人。《龚育之与科学学》是陈益升先生在追思会上的发言,比较系统地回顾和介绍了龚育之先生对我国科学学学科建设和科学学事业发展的重要贡献。本刊现将该文发表如下,以纪念龚育之先生78诞辰。

关键词：科学学科技政策马克思主义中共党史学科建设创始人北京专家

Piezoelectric Energy Harvesting From Asphalt Pavements Deformation Under Various Traffic Flows

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Piezoelectric Energy Harvesting From Asphalt Pavements Defor...

Numerical modeling of blow refining process of a 300t ladle furnace at Baosteel

2018年全国固体力学学术会议

作者： Yangyang Zhang yisheng chen 吕朝锋 Ji Wang Department of Civil Engineering Zhejiang University Faculty of Mechanical Engineering and Mechanics Ningbo University

Piezoelectric energy harvesting from asphalt pavements deformation has received much attention due to potential applications on self-powered monitoring systems for roads, bridges or other civil infrastructure facilities. The influences of weight and speed of a single vehicle load on the open-circuit voltage of the harvesters have been investigated experimentally by many researchers. However, the output power, key measures for evaluating the efficiency of these harvesters, were ignored in many in-situ and laboratory experimental studies. So the quantitative dependence of output power upon the parameters of this kind of energy harvesters and traffic flows is still unclear, which brings great challenges for the energy harvesting systems designation in practical applications. In this study, a generalized theoretical model is developed to calculate and optimize the output power of piezoelectric energy harvesters embedded in asphalt pavements under the two most common traffic flow conditions, e.g. urban roads and highway roads. By employing the scaling law methodology, we find that distinguished strategies exit for optimization the output power of the energy harvesters under aforementioned two traffic flow conditions. The result of this paper may provide a generalized guideline for designation of piezoelectric energy harvesting systems under various traffic flows.

关键词： Piezoelectric energy harvesting Asphalt pavement Traffic flow

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Baosteel Technical Research 2008年第1期2卷 56-59页

作者： Ren Sanbing Fan Junfei Huang Zongze Zhao Shunli chen yisheng Advanced Technology Div. Baosteel Research Institute Baoshan Iron ＆Steel Co. Ltd. Shanghai 201900 China Science and Technology University of Inner Mongolia Baotou 014010 China

Targeting the single tuyere and double tuyere methods of argon blowing for Baosteel＇ s 300 t ladle furnace, the 3D continuity equation, the N-S equation and the turbulent k-ε double-equation were used to model the form of the molten steel flow and the dead areas under six different argon blowing conditions. The different flow field forms and the degree of mixing under different argon blowing methods were compared. The results demonstrate that when large ladles are operated via different methods of argon blowing, the spray from the centre of a single tuyere forms a symmetrical vortex, while when a double tuyere sprays, there is basically no clear vortex. In regards to the amount of argon blowing that will produce the best blend of molten steel, the amount of dead area reduction will not be clearly noticeable if there is an excessive argon blowing amount.

关键词： ladle furnace argon blowing flow field numerical modeling

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稀土熔融盐精炼剂在紫杂铜中的应用研究

特种铸造及有色合金 2004年第1期24卷 64-65页

作者：陈一胜许方南方冶金学院

研究探讨了稀土元素以熔融盐的形式用于紫杂铜的精炼。通过对各种熔融盐作为精炼剂进行分析比较 ,确定以碳酸稀土、碳酸钠、氟化钙、金属氧化物和硼砂为稀土熔融盐的主要组成 ,并经过正交试验 ,得出了稀土熔融盐精炼剂的最佳成分配比。... 详细信息

研究探讨了稀土元素以熔融盐的形式用于紫杂铜的精炼。通过对各种熔融盐作为精炼剂进行分析比较 ,确定以碳酸稀土、碳酸钠、氟化钙、金属氧化物和硼砂为稀土熔融盐的主要组成 ,并经过正交试验 ,得出了稀土熔融盐精炼剂的最佳成分配比。研究表明 :精炼后的紫杂铜导电率达到 5 .78× 10 7S/m ,并且使氧含量保持在一级水平。

关键词：紫杂铜稀土熔融盐精炼剂