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Strict Positive Realness for Linear Systems with Multiple Time-delays

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Strict Positive Realness for Linear Systems with Multiple Ti...

Biological decomposition of Na_2._2._3 into sulfur by a newly isolated facultative thermophilic alkaline desulphuricant strain

第十九届中国控制会议

作者： Guoping Lu Shide Shen nantong Institute of Technology, Jiangsu 2.6007,{2. Qiliang Zhai department of Mathematics, nantong teachers'' college, Jiangsu 2.6007,{2.

＜正＞This paper is concentrated on strict positive realness （SPR） of linear time-delay system via linear matrix inequality （LMI） technique. We present sufficient conditions via LMIs such that linear delayed system is strictly positive real. More generally, we present a memoryless state feedback controller via LMIs such that the resulting closed-loop system is SPR for a class of linear time-delay control system.

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Science china chemistry 2009年第2期52卷 226-230页

作者： ZHANG JianBin1,ZHANG Tong2.MA Kai2.ZHANG PengYan2.LI Qiang2.& WEI XiongHui1 1 department of Applied chemistry,{2. of chemistry & Molecular Engineering,Peking University,Beijing 100190,china 2.{2. of Chemical Engineering,Inner Mongolia University of Technology,Huhhot 010051,china 1. department of Applied chemistry College of Chemistry & Molecular Engineering Peking University Beijing 100190 China 2. college of Chemical Engineering Inner Mongolia University of Technology Huhhot 010051 China

A facultative thermophilic alkaline desulphuricant strain named GDJ-3 was isolated from neutral soils,enriched on sulfur synthetic medium,and detected in previous *** and chemotax-onomic analyses and 16s RNA gene sequencing showed that the strain was in good agreement with Alpha proteobacterium sp.(97%) and ochrobactrum sp.(98%).The regenerative processes of the solu-tion containing sulfur compounds(SCS) from the strain through an orthogonal test were investigated to get the optimum regenerative *** results showed that regenerative temperature,air flow,and stirring speed of the agitator were the main three variables influencing the regenerative processes of the *** optimum regenerative efficiency of the SCS from the strain was obtained when tem-perature,air flow,and stirring speed of the agitator were 318.2.K,3.0 L/min,and zero r/min,*** this condition,when the cell concentration of the strain was adjusted to 107/mL,the concentra-tions of Na2.2.3 and Na2. in the SCS decreased from 112.68 g/L to 96.88 g/L and from 0.87 g/L to 0.11 g/L in 9.5 ***,XRD spectrum shows that sulfur was formed in the regeneration *** results suggest that the strain has potential application to the regeneration of the industrial so-lution containing sulfur compounds.

关键词： bio-desulfurization thermophiles optimization biocomposition orthogonal test

Synthesis and Biological Activity of N-[N'-(4,5,6-Trisubstitued pyrimidin-2.yl)acetylureido] Benzoic Sulfimide Derivatives

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Chinese Chemical Letters 2000年第7期11卷 581-582页

作者： Tao WANG Si Jia XUE Hai Jian YANG(department of chemistry ,Central{2. University, Wuhan 430079 department of chemistry,Yichun college,Yichun 336000) Cent china Univ Dept Chem Wuhan 430079 Peoples R China Yichun Coll Dept Chem Yichun 336000 Peoples R China

Fourteen N'- (4,5,6-Trisubstitued pyrimidin-2.y1) -2.chloroacetylureas and fourteen N-[N'- (4,5,6-trisubstitued pyrimidin-2.yl) acetylureido] benzoic sulfimide derivatives were synthesized. Among them twenty-seven are new compounds and their structures have been confirmed by 1HNMR, IR, MS and elemental analysis. The preliminary biological tests showed that some of the target compounds have excellent inhibitory activities against barnyard grass and rape, and the others have a good regulating activity for plant growth.

关键词： Benzoic sulfimide 2.amino-pyrimidine biological activity synthesis

Synthesize TiO_2.microspheres self-assembled from nanorods via hydrothermal treatment

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Science china chemistry 2007年第2期50卷 175-178页

作者： ZHANG YiBing1,2.FENG XinJian3 & JIANG Lei2.3 1 Shangrao teachers’ college,Shangrao 334001,{2. 2.National Center for Nanoscience and Nanotechnology,Beijing 100080,{2. 3 Institute of chemistry,Chinese Academy of Sciences,Beijing 100080,{2. 1. Shangrao teachers’ college Shangrao 334001 China 2. National Center for Nanoscience and Nanotechnology Beijing 100080 China 3. Institute of chemistry Chinese Academy of Sciences Beijing 100080 China

The TiO2.microspheres were deposited on the glass substrates under certain conditions via hydro-thermal reaction using 0.15 mol·L?1 TiCl3 saturated NaCl aqueous solution adding urea as an additive. The TiO2.is characterized rutile by results of SEM,TEM and XRD techniques,the TiO2.microspheres are large scale assembled from TiO2.nanorods. The affections on the products by the factors of the con-tents of urea being an additive(the key techniques) ,the reaction temperature,the reaction time and the concentration of TiCl3 were studied. The optimum condition was found,and the mechanism of reac-tions was discussed also.

关键词： TiO2 self-assembly nanorods microsphere hydrothermal reaction

The realization and structure of complete Lie algebras whose nilpotent radicals are Heisenberg algebras

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Chinese Science Bulletin 1998年第5期43卷 383-385页

作者： JIANG Cuibo 1 and MENG Daoji 2.1.department of Mathematics,Yantai teachers University, Yantai 2.402.,{2. 2.department of Mathematics,Nankai University,Tianjin 300071,{2.. department of Mathematics Yantai Teachers University Yantai China department of Mathematics Nankai University Tianjin China

The realization and structure of complete Lie algebras whose nilpotent radicals are Heisenberg algebras over the complex field C are given.

关键词： complete Lie algebra Heisenberg algebra nilpotent radical.

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“王维模式”的文化诠释

深圳大学学报（人文社会科学版） 2004年第1期21卷 109-115页

作者：王志清南通师范学院中文系江苏南通226007

王维模式的基本特征可概括为“仕与隐”、“生活与艺术”、“诗与禅”3个“二难”消解;“王维模式”于诗学的最重要贡献,就是在意境的创造上获得了登峰造极的成功,艺术地解决了人与自然的关系,解决了诗歌中各要素关系浑成的难题,将诗歌... 详细信息

王维模式的基本特征可概括为“仕与隐”、“生活与艺术”、“诗与禅”3个“二难”消解;“王维模式”于诗学的最重要贡献,就是在意境的创造上获得了登峰造极的成功,艺术地解决了人与自然的关系,解决了诗歌中各要素关系浑成的难题,将诗歌导入一个崭新的领域,使中国古典诗歌更切合诗的本体特质,强化了民族艺术重“言外之旨”、“象外之象”的境界,培养了国人在创作与欣赏上追求暗示和整体感应的审美自觉。

关键词：王维模式文化价值诗歌

Molecular dynamics simulation of mechanical properties of TATB/fluorine-polymer PBXs along different surfaces

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Science china chemistry 2005年第6期48卷 504-510页

作者： XIAO Jijun1, HUANG Yucheng1, HU Yingjie1,2.& XIAO Heming1 1. department of chemistry, Nanjing University of Science and Technology, Nanjing 2.0094,{2. 2. department of chemistry, Nanjing Xiaozhuang college, Nanjing 2.0017,{2. Correspondence should be addressed to Xiao Heming (email: xiao@***) 1. department of chemistry Nanjing University of Science and Technology 210094 Nanjing China 2. department of chemistry Nanjing Xiaozhuang College 210017 Nanjing China

The mechanical properties of PBXs composed of the well-known insensitive explo-sive TATB (1,3,5-Triamino-2.4,6-trinitrobenzene) crystal and four kinds of typical fluo-rine-polymers, i.e. poly (vinylidene difluoride) (PVDF), polychlorotrifluoroethylene (PCTFE), fluo-rine rubber (F2.11) and fluorine resin (F2.14) individually, have been simulated by molecular dy-namics (MD) method. The results show that the mechanical properties of TATB can be effectively improved by blending with a small amount of fluorine-polymers. Different mechanical properties of PBXs are obtained by putting fluorine-polymer binders parallel to different crystalline surfaces. The whole effect of improving mechanical properties is found to be (010)?(100)>(001).

关键词： TATB, polymer bonded explosives, mechanical properties, molecular dynamics.

现代高校公共体育课《体育与健康》教材质量评估方法的研究

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体育科学 2003年第3期23卷 32-37页

作者：吴健南通医学院体育教研室江苏南通226001

本文针对目前普通高校公共体育课《体育与健康》课程教材尚未见系统分析、无科学的评估方法的现状,在文献调研、问卷调查、专家访谈、数理统计和逻辑分析等方法的基础上,尝试运用模糊综合评判法对其质量进行综合评估。以期为科学的分析... 详细信息

本文针对目前普通高校公共体育课《体育与健康》课程教材尚未见系统分析、无科学的评估方法的现状,在文献调研、问卷调查、专家访谈、数理统计和逻辑分析等方法的基础上,尝试运用模糊综合评判法对其质量进行综合评估。以期为科学的分析、评估普通高校公共体育课《体育与健康》课程教材以及以后的教材编写等工作提供一定的参考依据;同时防止教材编写上的低水平重复,杜绝质量低劣的教材进入课堂。

关键词：体育教育高校体育与健康教材质量评估方法模糊综合评判法

Synthesis of N-(2.Hydroxy-1-Phenoxyacetyl)Prolyproline

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Wuhan University Journal of Natural Sciences 1998年第2期3卷 217-220页

作者： Yang Dingqiao(department of chemistry,Huanggang {2. college, Huanggang City, Hubei 436100,china)Grace B Borowitz,Irving J Borowitz(department of chemistry,Ramapo college of New Jersey, Mahwah,NJ 07430,USA) Huanggang teachers college Department of Chemistry Huanggang City Hubei China Ramapo college of New Jersey Department of Chemistry Mahwah USA (GRID:grid.418922.4) (ISNI:0000 0001 2108 5881)

Ionophores consist of molecules which surround and carry positive metal ions and other ions through biological membranes. One classe of ionophores which we have been developing contains dipeptides which are encouraged to become part of a ring because of possible hydrogen bond formation between the 2.hydroxy on the phenyl group and carboxyl group (COOH) of the final amide proline. Formation of a ring should increase the complexation ability of the ionophore. We report that the synthesis of N-(2.hydroxyl-1-phenoxyacetyl) prolyproline(1), a novel ionophore is prepared from activated 2.acetoxy phenoxyacetic acid (3a) and the appropriate dipeptide ester using coupling methods such as dicyclohexyl carbodiimide with hydroxyben-ztriazole or carbonyl diimidazole.

关键词： synthesis ionophore dipeptide