检索结果-南通市图书馆

Risk pre-warning of tender evaluation for civil projects:an outlier detection model

在线全文

学校读者我要写书评

暂无评论

Journal of Southeast university(English Edition) 2008年第S1期24卷 155-159页

作者： Cheng Tiexin1 Qi Xin1 Guo Tao2.1 College of Management, tianjin Polytechnic university, tianjin 300387, China)(2.College of Industrial and Commercial Administration, tianjin Polytechnic university, tianjin 300387, China) College of Management Tianjin Polytechnic University Tianjin 300387 China College of Industrial and Commercial Administration Tianjin Polytechnic University Tianjin 300387 China

The marking scheme method removes the low scores of the contractor's attributes given by experts when the overall score is calculated, which may result in that a contractor with some latent risks will win the project. In order to remedy the above defect of the marking scheme method, an outlier detection model, which is one mission of knowledge discovery in data, is established on the basis of the sum of similar coefficients. Then, the model is applied to the historical score data of tender evaluation for civil projects in tianjin, China, according to which the outliers of the scores of the contractor's attributes can be detected and analyzed. Consequently, risk pre-warning can be carried out, and some advice to employers can be given to prevent some latent risks and help them improve the success rate of bidding projects.

关键词： civil projects tender evaluation knowledge discovery in data outliers

在线全文

学校读者我要写书评

暂无评论

2.糖尿病患者卒中预防及血糖管理专家共识

中华内科杂志 2024年第7期63卷 649-659页

作者：《2.糖尿病患者卒中预防及血糖管理专家共识》编写委员会陈莉明母义明不详天津医科大学朱宪彝纪念医院内分泌科天津300134 解放军总医院第一医学中心内分泌科北京100853

糖代谢异常与卒中关系密切,对卒中的发生、发展及预后均有不良影响。良好的血糖控制对改善卒中预后具有重要意义。部分降糖药物能够减少2.糖尿病患者卒中的发生及复发风险。2.糖尿病合并卒中患者应控制血压、血脂,合理应用抗血小板药... 详细信息

糖代谢异常与卒中关系密切,对卒中的发生、发展及预后均有不良影响。良好的血糖控制对改善卒中预后具有重要意义。部分降糖药物能够减少2.糖尿病患者卒中的发生及复发风险。2.糖尿病合并卒中患者应控制血压、血脂,合理应用抗血小板药物。共识专家组基于循证医学证据和临床实践,并经过多次讨论最终形成本共识,以期为临床提供参考。

关键词：糖尿病 2. 卒中预防血糖管理专家共识

Study on UV Shielding TiO2.Thin Film Prepared by Sol-Gel Method

在线全文

学校读者我要写书评

暂无评论

稀有金属材料与工程 2006年第S3期 508-510页

作者： Shihai Zhao~1 Xiaohui Wang~2.Shaobo Xin~2.Qiang Jiang~2.Xiaoping Liang~2.(1.School of Mechanical and Electronic Engineering,tianjin Polytechnic university,tianjin 300160,China) (2.School of Material Science and Chemical Engineering,tianjin Polytechnic university,tianjin 300160,China)

Titanium dioxide （TiO2. thin films were prepared on microscopes slides by sol-gel and dip-coating processes from specially formulated *** results show that there exists anatase and rutile structure of TiO2.hen heat treatment temperature is 450℃,and at 800℃,TiO2.article size is of below 100 nm and rutile structure is *** the range of 360 nm～400 nm the transmittance of TiO2.ol increases with the increasing of the concentration of Ti（OC4H9）4in ethanol solution. The transmittance of TiO2.ilms with various number of the layer is measured to be 0% below 32. nm,and the three-layer TiO2.ilm is of the best UV resistance in the range of 32. nm～400 nm.

关键词： TiO2 thin film sol-gel UV absorption

How to Deal with the Trend of Industrial Transfer and Adjustment of Jing-Jin-Ji for Langfang

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

How to Deal with the Trend of Industrial Transfer and Adjust...

Adsorption equilibrium of binary proteins to Q Sepharose FF

Extended Research of Cluster Development Among Beijing-tianjin-Hebei and Urban Economic Orientation of Langfang

作者： Hao Zhigong~1 Zhao Biao~2.1 Hebei university of technology Langfang Department,Langfang Hebei,065000,China 2.Hebei university of technology,beichen tianjin,300401,China

With further intensifies of economic globalization to promote production factors in the international scope and regional scope is aggravated transfer,and the inherent differences of gradient in industrial structure of Jing-Jin-Ji,so that the transfer and adjustment of industries is imperative in *** will inevitably lead to Beijing and tianjin,absorbing international advanced industrial elements,cutting and transfer of that not adapt to their own development,and Hebei has received the transferred of industrial elements that natural and unique geographical *** the same time through the integration coordinated development of Jing-Jin-Ji,can enhance the level and structure of their industries. Between Beijing and tianjin,Langfang,as an emerging city,just to seize this opportunity to perfect and adjust the industrial structure,promote regional integration with the Beijing and tianjin,make use of the after advantage,strive for the leap *** this circumstanced,this article will has a preliminary discussion and analysis that Langfang how to deal with the trend of industrial transfer and adjustment of Jing-Jin-Ji.

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

化工进展 2011年第S2期30卷 190-208页

作者： LIANG Juan~(1,2.,FIEG Georg~2.LUO Xing~2.SHI Qinghong~1,SUN Yan~1 (1 Department of Biochemical Engineering and Key Laboratory of Systems Bioengineering of Ministry of Education, School of Chemical Engineering and technology,tianjin {2.,tianjin 300072.China 2.Institute of Process and Plant Engineering,Hamburg {2. of technology,Schwarzenbergstrasse 95,2.073 Hamburg,Germany)

Simultaneous and sequential adsorptions of bovine serum albumin(BSA) and bovine hemoglobin(bHb) was investigated on anion ion-exchange media Q Sepharose FF in batch adsorption experiments to elucidate the mechanism of multi-component protein *** is always preferential adsorbed with bHb inhibited in binary *** on binary adsorption of factors such as pH,salt concentration,initial concentration ratios of proteins and the adsorption sequence are *** models have been tested and compared to describe the competitive binary adsorption of BSA and bHb in all conditions *** the extended Langmuir model gives the best predict of adsorption of the stronger adsorbed protein when its adsorption is not very strong in simultaneous adsorption,the Statistical thermodynamic(ST) model gives the best description of weaker adsorbed protein in simultaneous adsorption,the Steric mass-action(SMA) model is most appropriate multi-component model considering all different conditions for both proteins.

关键词：化工进展增刊二二三三七二熟布井气石

The Industrial Structure Positional Placement and Countermeasure of Langfang Based on Cities Docking

在线全文

学校读者我要写书评

暂无评论

The Industrial Structure Positional Placement and Countermea...

Security region based real and reactive power pricing of power system

Extended Research of Cluster Development Among Beijing-tianjin-Hebei and Urban Economic Orientation of Langfang

作者： Li Jingyuan~1 Zhao Biao~2.1 Hebei university of technology Langfang Department,Langfang Hebei,065000,China 2.Hebei university of technology,beichen tianjin,300401,China

The paper conducted a comparative study on the spatial layout of industry structure and economic development elements of Langfang,considering symbiotic development of urban areas including city docking and receiving the irradiation of economic and technical elements,and put forward the strategic positioning and strategies of the industrial structure proposed layout for Langfang mainly using the geographical advantages to Beijing and tianjin and favorable conditions for its own.

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Science China(Technological Sciences) 2008年第12期51卷 2095-2111页

作者： YU YiXin1 & WANG YanJun1,2.1 Key Laboratory of Power System Simulation and Control of Ministry of Education,tianjin university,tianjin 300072.China 2.College of Mechanical and Electrical Engineering,Agriculture university of Hebei,Baoding 071001,China Key Laboratory of Power System Simulation and Control of Ministry of Education Tianjin University Tianjin 300072 China College of Mechanical and Electrical Engineering Agriculture University of Hebei Baoding 071001 China

This paper develops a novel model and an algorithm of security region based real and reactive power pricing of power *** the proposed model,the reactive power production cost is represented as the opportunity *** static voltage stability region in the cut set power space(CVSR) and the practical dynamic security region(PDSR) in the injection power space are used to represent the constraints of voltage stability and transient stability,so that the consideration of this kind of constraints in the optimization becomes very *** the proposed algorithm,a decoupled optimization and iteration method of active power production cost and reactive power production cost is *** to the K-T optimality conditions,the prices of active power and reactive power,and the different components corresponding to the concerned security constraints are *** components of spot prices can reflect the influence of different node power injections on each kind of security constraints,so that through the node price all of the participants in power market can be stimulated to take an active part in maintaining the system *** illustrative example on the New England 10-genetator 39-bus System is used to demonstrate the proposed method.

关键词： static voltage stability region practical dynamic security region opportunity cost spot price active power and reactive power

Piezoelectric Actuator/Sensor Wave Propagation Based Nondestructive Active Monitoring Method of Concrete Structures

在线全文

学校读者我要写书评

暂无评论

Journal of Wuhan university of technology(Materials Science) 2011年第3期26卷 541-547页

作者：朱劲松 School of Civil Engineering Tianjin University Key Laboratory of Coast Civil Structure Safety(tianjin university) Ministry of Education

In order to monitor the basic mechanical properties and interior damage of concrete structures,the piezoelectric actuator/sensor based wave propagation method was investigated experimentally in the laboratory using a specifically designed test *** energy attenuation of stress waves was measured by the relative index between the output voltage of sensors and the excitation voltage at the *** on the experimental results of concrete cube and cylinder specimens,the effect of excitation frequencies,excitation amplitude,wave propagation paths and the curing age on the output signals of sensors are *** results show that the relative voltage attenuation coefficient RVAC is an effective indicator for measuring the attenuation of stress waves through the interior of concrete.

关键词： piezoceramics actuator/sensor wave propagation method non-destructive evaluation (NDE) active monitoring concrete

Chloride channel-dependent copper acquisition of laccase in the basidiomycetous fungus Cryptococcus neoformans

在线全文

学校读者我要写书评

暂无评论

Science China(Life Sciences) 2010年第1期53卷 125-130页

作者： ZHU ChangWei1,JIANG Nan1,XIAO DongGuang2.PAN Jiao1 & ZHU XuDong1 1 State Key Program of Microbiology and Department of Microbiology,College of Life Sciences,Nankai university,tianjin 300071,China 2.tianjin Industrial Microbiology Key Lab,College of Bioengineering,tianjin university of Science & technology,tianjin 300457,China 1. State Key Program of Microbiology and Department of Microbiology College of Life Sciences Nankai University Tianjin 300071 China2. Tianjin Industrial Microbiology Key Lab College of Bioengineering Tianjin University of Science & Technology Tianjin 300457 China

The CLC chloride channel gene CLC-A of the pathogen yeast Cryptococcus neoformans was previously reported to be critical for multicopper laccase activity and growth at an elevated *** study reports that copper homeostasis was impaired in the clc-a *** was demonstrated by the substantial decrease of the intracellular quantity of copper under copper-limited growth as determined by flame atomic absorption ***-A is a critical factor in copper homeostasis which is required for copper acquisition of laccase in ***.

关键词： chloride channel laccase copper homeostasis Cryptococcus neoformans