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首届国际生物经济高层论坛

作者： Dongguang Xiao,Kui Xu,Yefu Chen,Ning Chen (College of bioengineering,tianjin university of science and technology,tianjin 300222)

The very high gravity(VHG) fermentation is an effective ethanol fermentation *** ethanol tolerance is an essential character for very high gravity ethanol fermentation *** corn mash as substrate and Saccharomyces cerevisiae AY—15 as fermentation strain,the effects of five Chinese liquor starters on ethanol tolerance of Saccharomyces cerevisiae were studied under very high gravity fermentation *** was found that all the five starters,namely red starter,Liaoqu,Rhizopus starter,Daqu and Xiaoqu,could improve the ethanol tolerance of Saccharomyces cerevisiae and consequently shortened the period of fermentation and increased the ethanol *** Liaoqu, the most effective one Among these five starters,was added during ethanol tolerance test, the ethanol tolerance was elevated from18%(V/V) to 22%(V/V).When 4%Liaoqu was added during 5 L scale very high gravity ethanol fermentation,the period of fermentation was shortened from 72 h to 60 h,and the terminal ethanol concentration was increased from 14.9%to 16.4%.This result indicated that further study on Liaoqu starter would be helpful to develop a saccharification reagent for industrial scale very high gravity ethanol fermentation with starchy substrates.

关键词： Chinese liquor starters Saccharomyces cerevisiae ethanol very high gravity(VHG) fermentation

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FROM CORE COMPETENCE TO STANDARDIZATION COMPETITIVENESS

FROM CORE COMPETENCE TO STANDARDIZATION COMPETITIVENESS

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2005年中国机械工程学会年会

作者： MAO Wenjuan, WEI Dapeng, HUA Xin (College of Economics and Management, tianjin university of science and technology, tianjin, 300222, China)

＜正＞In the dynamic competition environment, enterprises should not only focus the strategy on mastering the key assets or core technologies, but also on making the right choice from numbers of technologies and building the technological platform openly. Standardization competitiveness becomes the supplement, new style of core competence. In this paper, we try to describe and analyze the fonning mechanisms of standardization competitiveness, optimize the value flow, and propose the right strategies for enterprises which hope to obtain the standardization competitiveness.

关键词： standardization competitiveness lean thinking network effects installed-base

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Delay-Dependent Dynamical H∞ Control of Linear State-Delayed Systems

Delay-Dependent Dynamical H∞ Control of Linear State-Delaye...

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第二十六届中国控制会议

作者： Wang Dejin School of Electronic Information and Automation,tianjin university of science and technology,tianjin 300222,P.R.China

This paper provides a linear matrix inequality(LMI)approach to delay-dependent observer-based stabilizing and H controller design for linear state-delayed *** resulted delay-dependent criteria for the existence of controllers are presented by two independent LMIs via constructing a proper Lyapunov *** benefits of the proposed method lie in:(1)The feedback-gain and the observer-gain can be computed simultaneously;(2)The delay-bound or the H per-formance bound can be optimized;(3)The result obtained is less conservative than the previous work existing in the literature.A numerical example illustrates the potentiality of our claim.

关键词： Time-Delay Systems Delay-Dependent Criteria Observer-Based Controller H∞ Controller LMI

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Analysis of College Teaching Management Reform Based on Business Process Reengineering

Analysis of College Teaching Management Reform Based on Busi...

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第三届教学管理与课程建设学术会议

作者： Jun Zhu 1 , Yongjun Ma 1 1 School of Computer science and Information Engineering, tianjin university of science and technology, tianjin, 300222, China

It is of theoretical and practical significance to apply the theory and method of business process reengineering (BPR) to college teaching management. The main strategies of the implementation of BPR in college teaching management include: (a) redesign the teaching management organization structure, focusing on serving teachers and students;(b) optimize the process of teaching management to improve efficiency;(c) construct perfect teaching management information technology (IT) platform. The final goal of applying BPR in teaching management is to simplify working process, shorten working time, reduce working cost, improve working quality and efficiency, and continuously provide valuable service to teachers and students in the best, the fastest, the most economical and the most simple way, so as to enhance educational quality and competitive ability of college.

关键词： College Teaching management Process Business process reengineering

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单壁碳纳米管声子谱及比热计算

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物理学报 2009年第11期58卷 7787-7791页

作者：吴延昭谢宁刘建静焦永芳天津科技大学理学院天津300222

利用卷曲法计算了有限长单壁碳纳米管的声子色散关系.讨论了单壁碳纳米管的比热随管径、温度的变化趋势.结果表明碳管的比热随温度、管径的增大而增大,并逐渐趋于一恒定数值.根据色散关系的计算结果,给出了有限长(5,5)型单壁碳纳米管的... 详细信息

利用卷曲法计算了有限长单壁碳纳米管的声子色散关系.讨论了单壁碳纳米管的比热随管径、温度的变化趋势.结果表明碳管的比热随温度、管径的增大而增大,并逐渐趋于一恒定数值.根据色散关系的计算结果,给出了有限长(5,5)型单壁碳纳米管的振动模式以及部分振动模式的频率随长度的变化关系.

关键词：碳纳米管声子比热

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维普期刊数据库

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Study and Evaluation in CMOS Full Adders

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Transactions of tianjin university 2003年第1期9卷 54-57页

作者：陈国章陈昊何丕廉 DepartmentofComputerscienceandEngineering TianjinInstituteofTechnology DepartmentofComputerscienceandInformationEngineering TianjinUniversityofScienceandTechnology SchoolofElectronicInformationEngineering TianjinUniversity

Low power adder circuits, SERF, 10T Ⅰ,10T Ⅱ,10T Ⅲ and a complementary adder (28T) at physical layout level are evaluated. Simulations based on the extracted adder circuit layouts are run to assess how various circuit setups can impact the speed and power consumption. In addition, impacts of output inverters on the circuit performance of modified SERF and 10T adders due to threshold loss problem are also examined. Differences among these adders are addressed and applications of these adders are suggested.

关键词： CMOS full adder 28T adder

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维普期刊数据库

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LEAKAGE FORECASTING FOR WATER SUPPLY NETWORK BASED ON GA-SVM MODEL

LEAKAGE FORECASTING FOR WATER SUPPLY NETWORK BASED ON GA-SVM...

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2010全国压电和声波理论及器件技术研讨会

作者： Xiang-ming GAO~1,Shi-feng YANG~2,Yu HU~2 1 College of Mechanical Engineering,tianjin university of science & technology,tianjin 300222,China 2 College of Electronic Information and Automation,tianjin university of science & technology,tianjin,300222,China

Support Vector Machine(SVM) had excellent learning,regression ability and generalization ability, which used structural risk minimization based on smaller *** parameters of SVM have important effect to its *** this reason the parameters selection is the very important research content of the *** traditional parameter selection method is time-consuming and difficult to obtain the optimal parameters because it is based on artificial *** this problem,one kind of method to choose the parameters of the SVM by genetic algorithm(GA) is proposed in this *** parameters of SVM model are pretreated through genetic algorithms to get the optimum parameter values,and these parameter values are used in the SVM model and genetic algorithm-support vector machine(GA-SVM) model is obtained, which will be used to make leakage forecasting for water supply *** experiment result shows the SVM regression model optimized by GA have high forecast accuracy,and GA is one kind of effective method for SVM parameters choosing.

关键词： GA-SVM model leakage forecasting water supply network

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肺炎克雷伯菌荚膜糖蛋白ELISA检测方法的研究

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生物化学与生物物理进展 2004年第6期31卷 567-571页

作者：李轻舟张燕戚薇杜连祥天津科技大学食品与生物工程学院天津300222

以肺炎克雷伯菌荚膜糖蛋白为免疫原 ,获得了兔抗肺炎克雷伯菌荚膜糖蛋白抗血清 ,通过硫酸铵分级沉淀与吸附法相结合的方法对抗血清进行纯化 ,并在此基础上建立了肺炎克雷伯菌荚膜糖蛋白间接ELISA检测方法 .该检测方法的检测灵敏度为 0 ... 详细信息

以肺炎克雷伯菌荚膜糖蛋白为免疫原 ,获得了兔抗肺炎克雷伯菌荚膜糖蛋白抗血清 ,通过硫酸铵分级沉淀与吸附法相结合的方法对抗血清进行纯化 ,并在此基础上建立了肺炎克雷伯菌荚膜糖蛋白间接ELISA检测方法 .该检测方法的检测灵敏度为 0 0 31mg/L ,线性检测范围为 2 5～ 30 0mg/L ,批内误差为 1 0 4 %～ 3 2 2 % ,批间误差为 2 6 1%～ 8 35 % .

关键词：肺炎克雷伯菌荚膜糖蛋白间接ELISA 检测方法

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维普期刊数据库

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Fiber Bragg grating sensor for studying the characteristics of piezoelectric ceramics

Fiber Bragg grating sensor for studying the characteristics ...

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2011年全国压电和声波理论及器件应用研讨会

作者： Xin-zhong Yan Jin-jin Cui~* College of Electronic Information and Automation,tianjin university of science & technology,tianjin,300222, China

＜正＞A new method is brought to research piezoelectric ceramics using fiber Bragg grating sensor,this method makes use of unbalanced Michelson interferometer in order to phase demodulate the fiber Bragg grating sensor *** relationship between displacement and voltage can be obtained through observing the travelling phase caused by wave length *** hysteretic and creep properties of the piezoelectric ceramic were demonstrated experimentally,and the applied voltage displacement curve and the creep curve were *** experiment not Only shows that the waving of the light source has nothing to do with the hysteresis behavior of piezoceramic actuator but also indicates that there is no relationship between the creep properties of piezoelectric ceramic with direction of the voltage.

关键词： Hysteresis characteristic Fiber Bragg grating Interferometric demodulation Creep characteristics

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Detection technology Based On Structural Damage Of Piezoelectric Dynamic Information

Detection Technology Based On Structural Damage Of Piezoelec...

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2011年全国压电和声波理论及器件应用研讨会

作者： Ling-ling LI~* Shi-feng YANG College of Electronic Information and Automation,tianjin university of science & technology,tianjin,300222, China

＜正＞Based on the piezoelectric effect characteristics of piezoelectric materials,piezoelectric ceramics can be used as sensors but also as a *** ceramic is attached to the surface of the test structure,then it detected and analyzed the damage Situation of the bolt loose to use the piezoelectric impedance technique in *** show that,by detecting changes in dynamic impedance of piezoelectric can analysis structural damage of a loose *** on structural damage detection techniques of piezoelectric ceramic,it can damage detection of real-time to mechanical *** it not only applies to macro-damage detection,but also very effective for the detection of minor injuries in the high frequency excitation.

关键词： structural damage piezoelectric ceramics impedance admittance bolt

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