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Search Results: 1 - 10 of 246795 matches for " <br>李果 "
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法学家 , 1996,
Considerations and Measures for Development of Industries of Modem Traditional Chinese Medicine in Hainan Province

Liu Mingsheng,Li Guoguo,<br>刘明生,李果
世界科学技术-中医药现代化 , 2001,
Abstract: By analyzing the present Superiorities in Hainan Province this article P roposes a few measures for the develo pment of modern industries of traditional Chinese medicine(TCM) in the province,such as the developm ent of the stacdadization and modernizatio n of TCM,the recrui tment of high -level researchers in T CM,the development towards OTC mark et,the establishment of gene pools and d atabases of tropical medicinal plan ts,the attracting of foreign investment and the establishment of the system for the i nvestment in scientific research,i n the hope that modern industries of TCM would grow vigorously in the province.

Li Guolong Jiao Ruishen,<br>李果,焦瑞身
微生物学报 , 1995,
Abstract: Preliminary results indicate that NR of Amycolatopsis mediterranei U-32, like that of plants and fungi, is also an inducible enzyme. Its synthesis is induced by nitrate and repressed by ammonia and other readily usable nitrogen sources. Chloramphenicol inhibitory experiment shows that NR induction involves de novo synthesis of proteins. Competition between molybdate and tungstate in NR synthesis suggested that NR of A. mediterranei U-32 is a molybdenumcontaining enzyme. NR activity in crude extract is inhibited by KCN and NADH. The natural electron donor of NR is still unknown. Beside, NR of A. mediterranei U-32 does correlation between rifamycin SV productivity to specific activity of mycelial nitrate reductase.
Cooperative controller of steering/braking stability for vehicles based on multi-agents system

LI Guo,WANG Xu,<br>李果,王旭
计算机应用研究 , 2009,
Abstract: This paper proposed a multi-agents coordinated method to study the probability of putting in practice in the vehicle's steering antilock brake stability fields.Firstly,with the blackboard rulers, the steering system and state.It got the desired reference values to realize the vehicle's steering antilock brake stability. These values were adjustable.Secondly,it realized the servo control of the vehicles with active distur-bance rejection control method, and studied on it's application methods to the vehicle's longitudinal and lateral servo-system to track the desired input commands robustly.Finally, validated the stability and the validity of the robust adaptive control algorithm by simulation results.
全球科技经济瞭望 , 2012,
Abstract: 作为在金融危机中诞生的总统,奥巴马选择了以新能源计划促进美国经济复苏和创造就业机会。 开发新能源可带动美国传统制造业部门重整旗鼓。利用传统制造业的基础设施、人才和技术的同时推动 新能源技术的研发和生产,发展新能源还能带来就业机会。奥巴马希望通过“清洁能源国家战略”改变美 国。在美国经济低迷、金融危机消极影响持续存在的情况下,奥巴马政府的新能源政策将是提振美国经济 的一剂强心针。深入研究奥巴马时代的新能源政策可能产生的影响就显得十分必要,这对于当今中国新能 源政策的制定也具有一定的参考意义。
图书情报工作 , 1993,
Abstract: ?“知识是商品”的理论被确认后,情报界对情报商品化的研究日益活跃起来。本文现依据有关资料,将此问题的研究进展综述如下:1关于情报商品性的认识在情报是不是商品这一理论问题上,存在着五种不同观点:1.1认为情报并不是商品。理由是:科学情报能满足人们对知识的需要,即它具有社会使用价值。但不是具有社会使用价值的每一种劳动产品都是商品,它必须进行交换,将产品转到把它当作使用价值使用的人的手里。
Nitrate Reductase Gene Cloning of Amycolatopsis mediterranei U-32

Li Guolong Yang Yunliu Jiao Ruishen,<br>李果,杨蕴刘,焦瑞身
生物工程学报 , 1994,
Abstract: Southern blot analysis showed great homology existed between niaD (NR gene) of Aspergillus nidulans and A. mediterranei U-32 chromosome DNA. A 5.0 kb PstI fragment from A. mediterranei U-32 complementary to A. nidulans niaD gene was cloned in E. colt NM522 using niaD as a probe. An identical DNA band was observed through back-hybridization of the cloned DNA fragment to chromosome DNA of A. mediterranei U-32. Its 2.1kb Sma I -EcoR V fragment can only hybridize with total RNA from nitrate-cultured mycelium. These data suggested that the cloned DNA fragment contains NR gene of A. mediterranei U-32. This is the first report on NR gene cloning from aerobic bacteria. It was deduced from molecular weigh of NR that its gene sequence is about 1. 5kb in size. Further hybridization analysis indicated that the cloned DNA fragment covers the full-length NR gene of A. mediterranei U-32. We also constructed the physical map of the recombinant plasmid pJL1-with various restriction endonuclease, among them ten with no restriction site, six with unique site and two with double sites on the insert.
Effects of elevated carbon dioxide and ozone on the growth and secondary metabolism of spring wheat.

LI Guo-mei,SHI Yi,CHEN Xin,<br>李果,史奕,陈欣
应用生态学报 , 2008,
Abstract: With open-top chamber (OTC), the effects of elevated CO2 (550 micromol x mol(-1)) and O3 (80 nmol x mol(-1)) and their combination on the biomass, total phenols, and flavone at different growth stages of spring wheat, as well as the yield components at maturity stage, were studied. The results showed that under elevated CO2, the biomass and yield components were significantly higher than those under ambient CO2 (342 micromol x mol(-1)), while under elevated O3, these parameters were significantly lower than those under ambient O3 (30 nmol x mol(-1)). The combination of elevated CO2 and O3 was at the intermediate place, indicating that CO2 could mitigate the negative effects of O3, while O3 could weaken the positive effects of CO2. Elevated CO2 and O3 increased the content of total phenols in wheat leaves, and the combination of elevated CO2 and O3 had the greatest effect. However, at late growth stage, the increment of total phenols was decreased. At early growth stage, the total content of leaf flavone under elevated CO2 and O3 and their combination was lower than the control, but at maturing stage, it was in adverse.
The Adaptive Robust Controller of Antilock Brake System of Electric Vehicles

LI Guo,YU Da-Tai,<br>李果,余达太
自动化学报 , 2006,
Abstract: This paper investigates the use of antilock brake control system for improving handling and stability of electric vehicles. An adaptive robust controller of antilock brake control system is designed according to the longitudinal vehicle brake model. The proposed adaptive controller and the corresponding robust adaptive law can not only keep the closedloop system robustly stable but also provide the expected performance. The effectiveness of the algorithm is verified by the experimental results. It is shown that the handling and stability of electric vehicle is improved and the control system still maintains satisfactory control performance despite the change of road surface condition.
The Study and Design of the Longitudinal Control System of Automobiles

Li Guo,Zhang Liangqi,Zhang Peng,Ding Huarong,<br>李果,张良起,张彭,丁华荣
自动化学报 , 1996,
Abstract: Because there are some nonlinearity and parameter uncertainty in the longitudinal dynamics of a automobile, we develop a new iterative learning control system,and result in close correlation between the dynamic performances of the control system and the control parameters. Experiment results are presented to illustrate the system effectiveness.
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