bluuebunny/crossref_metadata_2025 huggingface dataset:
Quality Evaluation of Recycled Fine Aggregate Based on the Double-Control Concept of Water Demand Ratio and Strength Ratio
Authors: Gao Song , Li Qiu Yi , Shang Qin Jiang
Published: December 2010

It’s necessary to establish criterion of recycled fine aggregate for the application of recycled concrete and recycled mortar. Strength ratio and water demand ratio are important technical indexes of recycled aggregate. In this paper, a series experiments are hereby performed to determine testing and classification method for recycled fine aggregate. The experimental results indicate that fineness modulus of recycled sand influences inversely the strength ratio and water demand ratio. Furthermore strength ratio of various aggregates decreases with the increasing of water demand ratio in using identical cement type. The present paper also provides definition and testing method of water demand ratio and strength ratio. Consequently the quality classification criterion for recycled aggregate is proposed based on the double-control concept of water demand ratio and strength ratio and has been adopted by national code “Recycled fine aggregate for concrete and mortar”(Revision for Approval).
Chloride Diffusion Property of Recycled Aggregate Concrete Treated with Water Repellent Agents-Silane
Authors: Zhu Ya Guang , Dai Jian Guo , Li Qiu Yi
Published: December 2010

Silane-base water repellent agents can significantly suppress the capillary water absorption of concrete and consequently improve the durability of the concrete and protects the internal steel reinforcement. This paper presents test result on chloride diffusion property of natural and recycled aggregate concrete externally and internally treated with silane-based water repellent agents based on the ASTM C1202 test method. The effects of concrete cracks on the chloride diffusion property were also investigated. After the tests, the impregnation depth of silane into the natural and recycled aggregate concrete, the total charges passing the testing samples and penetration depth of chloride during the testing period were determined. It was found that, for both cracked and uncracked concrete, externally treated natural and recycled aggregate concrete performed better than internally treated ones. The water repellent treatment method is more effective for recycled aggregate concrete than natural aggregate concrete because a deeper impregnation depth can be achieved in the former case.
The Mechanism of Explosive Spalling and Measures to Resistant Spalling of Concrete Exposed to High Temperature by Incorporating Fibers: A Review
Authors: Yang Juan , Peng Gai Fei
Published: December 2010

Many experimental researches have been conducted on explosive spalling performance of concrete of high-strength / high performance concrete (HSC/HPC). This paper summarizes two main explosive spalling mechanisms (Vapor pressure build-up mechanism and Thermal stress mechanism) of concrete at elevated temperature, and also presents the measures to resistant the explosive spalling, i.e. by incorporating fibers (polypropylene fiber(PPF), steel fiber(SF) and hybrid fiber of the first two). Finally, the further studies of both the mechanism and the measures are proposed. Also, the preliminary study of ultra high-strength concrete (UHSC) on fire-resistance are mentioned.
Adobe and Effect of Earthquake on Adobe Structure
Authors: Najinassajfar Mohammad , Vahidi Ali
Published: December 2010

Adobe (khesht) is the most common traditional material which is used in Persian structures because of compatibility with environment, being economic, ease and rapidity of use. In different eras of Persian history using adobe had been common. Its archaism refers to sixth millennium B.C. Attendance to these kinds of structures is important for two reasons. First, most residential structures and old regions of cities are made by adobe. Second reason is the cultural and antiquarian aspect of monuments. This article introduces features of adobe as a traditional material. Besides, process of building adobe structure and its reaction to earthquake.
Acid Rain Attack on Portland Cementitious Materials in China: Deterioration Process and Corrosion Products
Authors: Wang Kai , Chen Meng Cheng , Xie Li
Published: December 2010

A research program was undertaken to discover the corrosion mechanism of portland cementitious materials to acid rain attack in China. The deterioration process and corrosion products of hardened ordinary portland cement pastes in pH 2 simulated acid rain solution were analyzed by XRD and BSE. The results indicate that the destruction of hardened portland cementitious materials by acid rain attack in China is predominantly due to the coordinated effect of H+ and SO42- of acid rain solution, and gradually occurs from the surface to the interior of materials. The corrosion products are mainly a white mushy mixture consisting of silica gel (SiO2•nH2O), alumina gel (Al2O3•nH2O) and dihydrate gypsum (CaSO4•2H2O) crystal. During the process of acid rain attack, the deteriorated specimen can be divided into corrosion layer, affected layer and unaffected layer.
Application of Spray-on Waterproofing Membrane in Tunnels
Authors: Ma Jian Qin
Published: December 2010

Waterproofing is one of the key problems of underground structures. Spray-on waterproofing membrane is a new system in tunnels with single shell linings. The conditions of the application of this system are analyzed in terms of the deformation and surface condition of the first layer of the shotcrete shell, water ingress and water pressure behind the waterproofing membrane. The results show that the applications of a spray-on waterproofing membrane in a tunnel is possible if the deformation of the shotcrete and water pressures behind the sprayed membrane is properly controlled, as well as the ingress water is piped or tightened with practical measures. Proposals of measures to meet the conditions are presented for the application of the spray-on waterproofing membrane in tunnels.
Nucleation of Intragranular Acicular Ferrite in the Heat Affected Zone of Ti-Bearing Hsla Steel
Authors: Zhang Li Qing , Wu Kai Ming
Published: December 2010

The nucleation of intragranular acicular ferrite in the welding heat-affected zone of Ti-bearing high strength low alloy steel was investigated by means of electron microscopy. It was found that intragranular acicular ferrite nucleation sites under different welding heat inputs (4.3kJ/mm and 10.0kJ/mm) are titanium complex oxides on which manganese (Mn) sulfides are precipitated. The complex compound is a Si and Mn-enriched oxide. Analysis of the oxide by means of enenrgy dispersive X-ray spectrum indicated that the oxide has higher absorption ability of Si than that of Mn.
Research on Thermal and Structural Performances of Shale Ceramsite Concrete
Authors: Jiang Ying Bo , Wang Xiao Rong
Published: December 2010

Shale ceramsite concrete is a kind of materia with lightweight, heat preservation, heat insulation, fire resistance, earthquake resistance and other excellent performances as green building materials, it has very broad application prospects. Its consumption in China is second only to the density of ordinary concrete. In this paper, local shale products, by ordinary concrete slab and shale concrete slab structure comparison of performance tests and the thermal performance test, indicating shale properties of concrete.
Experimental Study on Epoxy Asphalt Binder
Authors: Liu Ke Fei
Published: December 2010

Epoxy asphalt has fundamentally changed the thermoplastic of asphalt and endowed the asphalt with excellent physical and mechanical properties. This paper analyses the developing technical requirement of thermosetting epoxy asphalt and points out its main problems during preparation and application process. Aiming at the steel deck paving characteristics, the author has independently developed epoxy asphalt binder and tested its performances, the results have showed that this binder can meet the basic requirement of various pavings, and its further research are in process.
Mechanics Properties of the Lime-Steel Slag Stabilized Soil for Pavement Structures
Authors: Cheng Tao , Yan Ke Qin
Published: December 2010

Mechanics properties of lime-steel slag stabilized soil for pavement structures are investigated. Firstly, the chemical composition of the fine grain steel slag is analyzed by spectral analysis test. In view of the materials compositions, 5 kinds of mix proportion projects are defined. Compaction tests of all mix proportion projects are carried out in different water conditions to obtain the optimum moisture contents. Then the optimum mix proportion project is demarcated by the unconfined compressive strength test and the compression rebound modulus test. Finally, the pavement structures design for a highway of lime-steel slag stabilized soil road sub-base is made. As comparisons, the pavement structures of other types of lime industrial wastes stabilized soil road sub-base are computed. It is shown that lime- steel slag stabilized soil is suitable for flexible pavement or semi-rigid pavement because of its good strength and rigidity which can effectively reduce thickness of the lower pavement and basic deflection.
Optimization of the Optical Performance of TiO2/Ag/TiO2 Multilayers for Warm Climates
Authors: Liang Qing , Liu Jing , Xu Wen Zhong , Xu Gang
Published: December 2010

The optical performance of the heat mirror for warm climates was proposed, and a parameter Dx which equals the ratio of solar transmission to visible transmission was defined. To make the Dx as low as possible, the thicknesses of the films for TiO2/Ag/TiO2multilayers were optimized through computer simulation. A TiO2(140 nm)/Ag (16 nm)/TiO2(140 nm) structure optimized for 16-nm Ag has a maximum decrease in Dx value (from 0.75 to 0.51), which possesses excellent building energy efficiency.
Infrared Spectrum Study of Autoclaved Systems with Solid Wastes
Authors: Ke Chang Jun , Wu Wei Zhou , Yuan Bing
Published: December 2010

Different solid waste and their autoclaved waste samples were studied with the methods of infrared spectra (IR), X-ray diffraction (XRD) and chemical analysis. The results indicate that there is significant difference for strong absorbance Si-O bonds stretching vibration band of solid wastes infrared spectrum. The silicates have reacted and formed new hydrates which correspond to the strong absorbance Si-O bonds stretching vibration band. For containing activity crystal or amorphous which have ever been high-temperature heat such as fly ash, slag, waste glass and steel-slag, bound water amount of their autoclaved samples are related to strong absorbance Si-O bonds stretching vibration band, but there are no unity rules between the compressive strength of the autoclaved samples and strong absorbance Si-O bonds stretching vibration band because their type of hydrates products are significant differences. The IR characteristic peaks of waste concretes are almost same, and there are similar hydrate products (tobermorite and C-S-H (I) gel) and maximum compressive strength for different samples.
Study on Electromagnetic Shielding Effectiveness of Nickel Fiber-Filled Cement
Authors: Xiong Guo Xuan , Zhang Zhi Bin , Deng Min
Published: December 2010

The cement-based composite shielding materials was prepared using portland cement and nickel fiber. The effects of dispersive manner, contents of nickel fiber, thickness of specimens on shielding properties and conductivity were studied in a frequency range of 100 KHz~1.5 GHz. With the contents of nickel fiber by ultrasonic dispersed at 5 vol.% and specimen’s thickness of 10 mm, the conductivity is 2.58×10-3 S•cm-1 and maximum shielding effectiveness is 47.8 dB, average shielding effectiveness reaches about 45.9 dB for cement-based composites.
An Extracellular Biopolymer Produced by Pseudomonas alcaligenes as Biosorbent to Remove Copper(II) from Aqueous Solutions
Authors: Luo Ling Xian , Zhang Tai Zhi , Tong Lv Bao
Published: December 2010

The objective of this study is to assess the potential applicability of an extracellular biopolymer (PA-2) produced by Pseudomonas alcaligenes as biosorbent remove the Cu(II) ions from environmental and industrial wastewater. The effects such as pH, Cu(II) initial concentration and sorbate-sorbent contact time and agitating speed on the adsorption capacities of PA-2 were studied. Biosorption equilibriums were rapidly established in about 60 min and the adsorption kinetics followed the pseudo-second order kinetic model. Biosorption equilibrium datas were better described by Langmuir isotherm model. The maximum Cu(II) adsorption capacity determined from Langmuir isotherm were 81.36 mg /g PA-2. The carboxyl and hydroxyl groups of the PA-2 were involved in chemical interaction with the Cu(II) ions depicted by Fourier transform infrared spectroscopic (FTIR) results. The present study indicated that PA-2 may be used as an inexpensive, effective and easily cultivable biosorbent for the removal of Cu(II) ions from environmental and industrial wastewater.
The Characterization of Biorthogonal Multidimensional Vector Wavelet Wraps with Nine-Scale Dilation Factor
Authors: Sheng Zong Sheng , Yu Yu Min
Published: December 2010

Wavelet analysis is nowadays a widely used tool in applied mathematics. The advantages of wavelet wraps and their promising features in various application have attracted a lot of interest and effort in recent years. In this paper, we develop the notion of a sort of multivariate vector wavelet wraps. A new approcah for designing the multidimensional vector wavelet wraps is formul- ated. Their characters are investigated by virtue of iterative method, time-frequency analysis metho- d and matrix theory. There biorthogonality formulas regarding the wavelet wraps are provided. Biorthogonality decomposition relation formulas of the space L2(Rn)r are obtained by constructing a series of subspaces of the vector-valued wavelet wraps. Moreover, several Riesz bases of space L2(Rn)r are constructed from the wavelet wraps.
The Study of Coupling Law of Stress Field / Seepage Field in Impermeable Stratum Medium
Authors: Li Jing Yan
Published: December 2010

According to the basic theory of rock mechanics, fluid mechanics in porous medium, geologic mechanics, calculated mechanics and fluid-solid coupling seepage, a mathematical and numerical model of seepage field and stress field coupling is developed in porous medium and a computer program is designed with the method of finite element technique. The Coupling Law of depressurizing exploitation Seepage field /Stress field in porous medium is studied. By the method of numerical simulation the variation law of stress-strain with time and space around borehole of impermeable rock medium, variety law of rock physical properties parameters is studied. It can be seen from result that development and deformation of borehole elastic area mainly affected by ambiequal ground stress value, difference of ambiequal ground stress and rock material properties so on. But for the nonlinear rock medium, material plastic deformation is a key mechanics parameter closely related to distribution patterns of borehole stress. Therefore, based on rock mechanics experiment，it is necessary to further consider influence of plastic deformation mechanism to the stability of the borehole.
Mode Identification Based on Fuzzy Clustering and Grey System Theory and its Applichation
Authors: Duan Li Xiang , Zhang Lai Bin , Meng Yang
Published: December 2010

The helath condition of rotor has been greatly concerned in rotating machinery. But for the lack of information, it is very difficult to judge the actual conditon. Based on the fuzzy and grey characteristics between faults and symptoms, a new method integrated with fuzzy clustering and grey relation analysis was put forward to identify the condition of rotor system. Firstly, eight features, such as average value, peak-peak value, variance value, virtual value and etc., were extracted from the vibration signal of rotor system. Then, fuzzy C-means algorithm was used to cluster forty samples into 4 clusters, meanwhile, the clustering center was acquired and regarded as standard pattern matrix. Finally, the grey relation degree was calculated between pattern to be inspected and the standard pattern matrix. Using this method, the unbalanced conditions of rotor system was precisely identified, which shows that the integrated method is valid and practicable.
A Quick Attribution Reduction Algorithm Based on Incomplete Decision Table
Authors: Shu Wen Hao , Xu Zhang Yan , Ruan Shen
Published: December 2010

At present, some scholars have provided the attribution reduction algorithms of incomplete decision table. The time complexity of many algorithms are .To cut down the time complexity of the algorithms for computing attribution reduction , the definition of discernibility matrix based on positive region and the corresponding definition of the attribution reduction are provided. At the same time, it is proved that the attribution reduction is equivalent to the attribution reduction based on the positive region. The discernibility matrix is simplified for not comparing the objects between .On this condition, a efficient algorithm for computing attribution reduction is designed with the simplified discernibility matrix, whose time complexity is .At last, an emulate example is used to illustrate the efficiency of the new algorithm.
A Cluster Head Rotating Threshold for Cognitive Radio Network
Authors: Xu Gui Sen , Tan Xue Zhi
Published: December 2010

Cluster-based topology is an energy-efficient topology control method in cognitive radio networks. The cluster head node depletes energy faster than cluster member node and the rotation of cluster head node is needed to balance the energy consumption for the whole network. Aimed at the problem of unbalanced residual energy of each node caused by cluster heads and cluster members in wireless cognitive radio network, a novel algorithm named cluster head rotating threshold (CHRT) is presented. In the proposed algorithm, rotation energy threshold is estimated using cluster head real-time energy load. The simulation results show that comparing with LEACH and EDAC, CHRT can realize the more network lifetime than the others.
Numerical Simulation & Experimental Research of Heat Charging Process of Cylindrical Units with PCM of Al-Si Alloy
Authors: Chen Guan Sheng , Zhang Ren Yuan , Li Feng , Li Shi Dong , Zhang Li
Published: December 2010

Phase change thermal storage used metal as phase change material (PCM) is an important mode of solar thermal energy storage. In this paper, the heat charging processes of solar heating units were simulated under three kinds of heating flux 100,150 and 200kW/m2 at the bottom face respectively, while the thickness of heat receiving layer at the bottom was in 5, 10 and 15mm. Al-Si alloy was selected as PCM used in the cylindrical body of the units which were in the size of φ1000×1000mm. The change of temperature and solid-liquid phase change interface of Al-Si alloy were analyzed to find out the suitable absorber thickness of thermal energy storage units which can run safety under the condition of temperature 700~900K and heat flux 100~200kW/m2, such as the application of solar thermal energy storage unit in high temperature solar thermal power stations. In the last a test system was built up and the experimental result was close to the simulation value of a unit in the size of φ300×1000×10mm.
The Study on E-Commerce Supply Chain Management Based on Creditrisk
Authors: Chen Li Li
Published: December 2010

It is feasible for CreditRisk + model to simulate the distribution of loss allocation of electronic supply chain enterprises in more reasonable. This is not only beneficial to existing customer relationship, but also provide faster, cheaper products advertisement customer development and cultivate their bonds of satisfaction and loyalty, retain customers. However, the use of CreditRisk loss distribution model to simulate the more or less has their unreasonable factors
Study on Optimal Segmenting Scale of Grassland in Remote Sensing Objects
Authors: Cui Wei , Li Qing Qing
Published: December 2010

Determining optimal segmenting scale of remote sensing objects is very important for remote sensing classification and identification. At present, selecting the optimal scales for objects in remote sensing images usually uses two methods, that is, average local variance and maximum area. Due to influences of subjective factors and difficult to implement, this paper proposes a new method based on fractal dimension to solve this problem. This experiment probes certain internal connections between fractal dimension on different scale and optimal segmenting scale of remote sensing objects. It offers a new method for seeking efficient ways to determine optimal scales of different objects in remote sensing images
Innovativeness of Local Government and Provincial Economy Growth - A Research by Province
Authors: Zhu Xuan Gong
Published: December 2010

The provincial innovative competitiveness consists of exports, patents and the flow of FDI ( Foreign Direct Investment), and the paper analyzes those factors which influence the exports, patents and the flow of FDI. In the end, the paper uses all the variables of factors to make regression the provincial economic growth, and find that provincial innovative competitiveness can explain 52% of economic growth.
The Research and Implementation of Illumination Technology in the 3D GIS Visualization
Authors: Wei Dong , Geng Hong Bi
Published: December 2010

Building mountains as the basic model for illumination model in the system of 3DGIS visualization. The establishing of this model adopts the approach of the global illumination model combine with the local reflection model and also the combination of shading and shadow. Complete the drawing of the shadow in the global illumination model ,using the shadow algorithm of Ray tracing as the main algorithm for drawing shadow, take advantage of shadow volume algorithm as the additional algorithm for shadow; complete the drawing of the shading in the local reflection model ,using the Blinn proportion algorithm as the main algorithm. Select the single ideal fixed point source as the light source of the illumination model. The results of this experimental show that the approach of combination of global and local model is feasible, the selection of the shadow and shading algorithms are also can reference.
Analysis of Three-Dimensional Strategy for Enhancing Capability for Organizational Learning in Private Enterprises
Authors: Jiang Tian Ying
Published: December 2010

The paper put forward a three-dimensional model of organizational learning in private enterprises, including organization system, private entrepreneurs and employees based on the analysis of the problems on organizational learning in private enterprises. Therefore, the research proposes several strategies, establishing learning organization, elevating professional qualities of private entrepreneurs and carrying out human-based management to enhance the capability for organizational learning in private enterprises in China.
Performance Study of Hybrid Solid Oxide Fuel Cell–Gas Turbine Power System
Authors: Zhao Hong Bin , Liu Xu
Published: December 2010

The simulation and analyses of a “bottoming cycle” solid oxide fuel cell–gas turbine (SOFC–GT) hybrid system at the standard atmospheric condition is presented in this paper. The fuel cell model used in this research work is based on a tubular Siemens–Westinghouse–type SOFC with 1.8MW capacity. Energy and exergy analyses of the whole system at fixed conditions are carried out. Then, comparisons of the exergy destruction and exergy efficiency of each component are also conducted to determine the potential capability of the hybrid system to generate power. Moreover, the effects of operating conditions including fuel flow rate and SOFC operating temperature on performances of the hybrid system are analyzed.
A Level Measurement System of the FMCW Radar Based on Virtual Instruments
Authors: Zhang Jie , Bai Ran
Published: December 2010

This paper presents a level measurement system of the frequency modulation continuous wave (FMCW) radar. The procedure is designed by LabVIEW7.0. The system adopts FMCW radar sensor and high-quality data acquisition card. The marine tank level can be measured. For improving the precision of the level measurement, this paper presents an improved algorithm. By using this algorithm, we first adjust the sampling number based on current frequency for meeting the request of the integral period sampling, afterwards, the spectrum is corrected accurately. The experiment is completed by applying the algorithm in LabVIEW. The result shows that the improved algorithm can increase the frequency measure precision for 100 times and more than ordinary algorithms, the measurement error of the level is smaller then 5mm.
Analysis of Exergy Utilization Efficiency of Combined Cooling Heating & Power on Gas Engine-Driven Heat Pump System
Authors: Qiu Lin , Li Qiang
Published: December 2010

The exergy utilization efficiency is the better reasonable to measure quantity and quality of thermal system then energy utilization efficiency .This text analyzed the exergy utilization efficiency of gas engine-driven heat pump(GEHP) at different combined supply energy modes. . Simulation computes gives that the heat recover plays the important action for increases exergy utilization efficiency of GHP system, especially at combined heating and electricity operational models, and the rules of heat recollection ratio and heat recollection temperature to exergy utilization efficiency of CHCP system were provided.
The Technique of Spatial Relationships-Based and Shape-Based Multi-Feature Combination of Trademark Image Retrieval
Authors: Zhang Cong , You Fu Cheng
Published: December 2010

There is no doubt that the technique of trademark image retrieval based on multi-feature is increasingly popular. It’s proposed that a combination of the feature of spatial relationships and shape-based is used to retrieve trade mark images in this paper. Firstly, angle relations describe the relationship each spatial object and a special similarity measure is used; Secondly, in order to well describe the shape features of the trademark images, a Euler-number of shape-region-based and compactness and convexity based on shape-contour are proposed; Thirdly, the similarity measure of an inquiring image and database images in the total number of objects is applied with the combination of multi-feature. Good results have been obtained in the following experiments, which prove the multi-feature combination way is better than other single-feature ways.
Normal Distribution Data Generating Method Based on Cloud Model
Authors: Wang Zhao Hong
Published: December 2010

The similar normal distribution is used wildly in the natural science and social science, fuzzy membership degree function which is accurately established seriously reduces the forecast accuracy of such data. Cloud model compare randomness and fuzziness organically, it reveal the relevance between randomness and fuzziness with digital expectations, entropy and hyper entropy, forecast algorithm based on normal cloud model relaxed the requirements of a normal distribution prerequisite and replaced the accurate membership degree function with the membership degree distribution expectation function, it is more easier and simpler than the joint distribution, Comparative experiment showed it is more general, can complete the data forecast accurately and directly.
Research on Brand Products Based on Kansei Engineering
Authors: Dong Xiao Fei , Xie Qing Sen , Ding Lei
Published: December 2010

In order to meet the user needs and enhance the brand identification, a new method of brand products design based on Kansei engineering is presented. Firstly, users’ implicit semantic information is extracted using semantic differential method, and the brand gene pool is established. Secondly, according to analytic hierarchy process (AHP), genes which meet the goal of semantic information are selected from the gene pool, which can be used to constitute a new product. Then the whole frame of product is constructed, and the final design project can be quickly obtained after some adjustments. Finally, a new brand from a furniture design company is taken as an example to illustrate the specific of this new approach. By employing this method, a series of new sofa are designed.
Analyzing the Excavation of Fluid-Solid Coupling Foundation Pit Based on 3D Numerical Simulation and GA-ANN
Authors: Jiang An Nan , Wang Jun Xiang , Hou Lin Bo
Published: December 2010

Aiming at the complexity mechanism of foundation pit excavation, the paper proposed a feedback analysis flow combining 3D numerical simulation, orthogonal design, artificial neural networks(ANN) and genetic algorithm(GA). The sample data are produced by numerical simulation based on seepage theory and Biot consolidation theory, reflecting the interaction of hydraulics and mechanics. The BP neural network model is trained by above sample data and is optimized by GA, which can map the relation between soil layer parameters and character monitoring displacements well. Based on the relation, the soil parameters could be identified by GA. The method has been applied to analyze the Suzhou Runjie square foundation pit excavation and the permeability coefficients of soil layers were identified. The fluid-solid coupling process of foundation pit excavation based on inversion parameters are simulated. It indicates that the method can get satisfied precision, which provides guide meaning to specific engineering construction and appraisal.
Application of Building Information Modeling in Building Integrated Photovoltaics
Authors: Xuan Xiao Dong
Published: December 2010

Building information modeling (BIM) is a new method of dealing with the design and information of building component, this project created Building integrated photovoltaics (BIPV) in BIM with parametric design, it is a new way to study and analysis BIPV. In BIM models, all information about the building components and its lifecycle are included. Therefore the study utilized this important characteristic of BIM to explore its application in BIPV design. The author used BIM software Revit to develop a BIPV building model as the parametric prototype and programmed with panels’ information in C# 2008 to correlate the angle of photovoltaic (PV) panels with sun altitude, and finally applied application programming interface (API) in Revit to control these panels’ angle by the sun path.
A Multiple Classifier System for Functional Classification of G Protein-Coupled Receptors
Authors: Lu Yi Nan , Quan Yong , Huang Dan Mei
Published: December 2010

G protein-coupled receptors (GPCRs) are the largest protein super family in the human body and play a significant role in the pharmaceutical industry as drug targets. Although the deep research in GPCRs is continuing to grow, the study on their structures and functions is limited, for it is difficult and complex for the researchers to obtain purified membrane protein structures of GPCRs. Currently, how to get the structures of GPCRs and how to analyze them are the most important issues in modern molecular biology and medicine. We adopted multi-classifier method to deal with the problem of functional classification of GPCRs. Based on class hierarchy, the different data sets for training the classifiers were formed, and the diversity and accuracy were considered together in selecting the classifier sets. The dynamic weighted fusion rule was used to combine the classifiers. Experimental results show the effectiveness of this multi-classifier system.
Compact Method to Calibrate Frequency Response of Ultrasonic Transducer
Authors: Hou Zhi Wei , Zhao Min , Dong Ai Min , Wu Qiong , Li Qiu Feng
Published: December 2010

Frequency response character of ultrasonic transducer often influences on the test signal partly, and then test errors arise. To the problem, a compact method is proposed to calibrate the frequency response in this paper. The experiment data was obtained in water- immerging test of the transducers, and a discrete transfer function is established based on system identification algorithms and then used for transducer calibration. The method is validated effective by experiment. Not only can the characteristic of transducers be indicated, but also a referenced method is presented for calibrating frequency response of LTI system.
Design and Linear Fitting of High Sensitive Optical Power Meter
Authors: Lu Wen Jia , Wei Yi , Zhao Yi Fan
Published: December 2010

This paper introduces the hardware design of digital optical power meters and the algorithm flow.The power meter detector, with InGaAs-PIN photodiode and LTC6078,is used as a preamplifier for the measurement of micro-current;Silicon Laps C8051f410 are selected as the micro-controller for AD quantification and data processing, and the linear fitting of the measured data and standard data is completed in Matlab environment.After the comparison between the two measurement results,the proposed optical power meter adopts certain algorithm to compensate the deviation and improve the overall performance.The analyses of measured data show that:the optical power meter can be designed to precisely measure multi-wavelength with wide dynamic range and high sensitivity,support AC and DC dual power supply,and be portable.Therefore It also can be used both by university laboratories for teaching and by government department for construction monitoring and optical communications maintenance.
A Comparison Study on Energy Consumption of Urban Residential Buildings in Different Climatic Zones
Authors: Cai Wei , Wu Zhao Hui , Wang Huang , Du Xiao Man
Published: December 2010

Built environment is determined by outside climate condition. There are a lot of important factors that influence building energy consumption such as building shape coefficient, insulation work of building envelope, covered area, and the area ratio of window to wall. In order to determine how building energy efficiency works in different climate zones, the variation rule of some aggregative indicators and building energy efficiency rates were analyzed by dynamic simulation. The results show that energy conservation potential which is brought by the decrease of builidng shape coefficient is the largest in hot summer and cold winter zone such as Shanghai, and the effect is mainly brought by insulation measures added to exterior walls.
The Study on Development Crisis of Folk Sports Discipline System
Authors: Liu Min Hang , Li Chu Tao
Published: December 2010

This study took systematic science as key researching angle, which took folk sports as a gradually evolution active system, and regarding disciplines development as the key motivation on folk sports system evolution. Through the distinguishment from internal and external negative factors of folk sports system, the author thought that the main factors of restraining folk sports disciplines system development existing in three areas: the first area is the developing strategic crisis of disciplines; the second one is the crisis of folk sports disciplines construction and disciplines system; and the last one is the local folk sports cultural development crisis. The study points out that only to construct sound disciplines system of folk sports in China, which can get sustainable development, if rather not, a great number of excellent traditional cultural folk sports programs face to be extincted, this manner is beneficial and great significance to reserve and pass down the traditional folk sports.
Radial Force Analysis of Radial Laminated Magnetic-Barrier Rotor Brushless Doubly-Fed Machine
Authors: Shangguan Ming Zhu , Liu Hui Juan , Song Xin Xiao , Lv Hong Lin
Published: December 2010

In this paper, the respective harmonic magnetic field generated by the two sets of stator windings of radial laminated magnetic-barrier rotor brushless doubly-fed machine has been analyzed with the winding function method, the calculations of the radial forces on stator’s inner edge which are resulted from the fundamental and harmonic magnetic field that generated by the two sets of stator windings have been made, and the radial forces of three kinds of such machines with different rotor pole numbers have been compared, all the above can provide theoretical guidance for optimized design of radial laminated magnetic-barrier rotor brushless doubly-fed machine.
Out-of-Step Disconnection Scheme Based on Fuzzy Math
Authors: Li Bin , Tian Xiao He , Bo Zhi Qian
Published: December 2010

In the power system, out-of-step disconnection is the final defensive line of protection, requiring high reliability. This paper analyzed the physical meaning of out-of-step and the principles of disconnection to study the applicability of each discrimination method. It analyzed characteristics and variations of some parameters while oscillation or out-of-step, including impedance, frequency, cosine voltage, etc. It created relevant fuzzy functions and fuzzy rules with trapezoidal membership function based on the given characteristics and variations. Then a comprehensive out-of-step algorithm is achieved by integrating fuzzy functions together with given fuzzy rules. The output is defuzzied to be the final result with barycenter method to make decisions. This algorithm is tested to be more generic.
Review of Materials for Solar Thermal Collectors
Authors: Li Jie
Published: December 2010

To cover the main contributions and developments in solar thermal collectors through focusing on materials, heat transfer characteristics and manufacturing challenges. A range of published papers and internet research including research work on various solar thermal collectors (flat plate, evacuated tubes, and heat pipe tube) were used. Evaluation of solar collectors performance is critiqued to aid solar technologies make the transition into a specific dominant solar collector. The sources are sorted into sections: finding an academic job, general advice, teaching, research and publishing, tenure and organizations. Provides information about types of solar thermal collectors, indicating what can be added by using evacuated tube collectors instead of flat plate collectors and what can be added by using heat pipe collectors instead of evacuated tubes. Focusing only on three types of solar thermal collectors (flat plate, evacuated tubes, and heat pipe tube). Useful source of information for consultancy and impartial advice for graduate students planning to do research in solar thermal technologies. This paper fulfils identified information about materials and heat transfer properties of materials and manufacturing challenges of these three solar thermal collectors.
Advanced Treatment Effect of Compound Montmorillonite Adsorb-Coagulant on Coking Wastewater
Authors: Li Na , Liu Hai Biao , Huang Jun Li
Published: December 2010

The conventional biological treatment technology is inefficiently for coking wastewater. It is meaningful to study the advanced treatment process for these kinds of wastewater. A new compound montmorillonite adsorb-coagulant was prepared by complex formulation of microwave organic modified montmorillonite, Na- montmorillonite and polyaluminium chloride (PAC). And it was used in the advanced treatment of coking wastewater after biological treatment. Experimental results show that the mass ratio of microwave organic modified montmorillonite, Na-montmorillonite and polyaluminium chloride (PAC) is 20: 20: 1, and under the condition of the dosage of 30 g/L, the adsorb-coagulation time of 30 minutes and the sedimentation time of 2 hours, the treatment effect is the best. The effluent concentration of COD and ammonia nitrogen is 33.6mg/L and 10.1mg/L, respectively, and the chroma of effluent is only 2 time. The corresponding removal efficiency is 78.2%, 84.8% and 92%, respectively. And the out-effluent can completely reach the first national discharge standard.
Comparative Analysis on the Indicators of Average Years of Education and Adult Illiteracy Rate
Authors: Cui Hong Wei
Published: December 2010

This paper is a comparative analysis, which mainly compares two education development level indicators of Average Years of Education (AYE) and Adult Illiteracy Rate (AIR). In China, AIR is influenced by elder illiteracy seriously. This article, firstly analyzes the problems of using AIR, and secondly introduces the indicator of AYE and compares the two indicators. Finally, points out the conclusion, that it should be using AYR to replace AIR to measure regional education development level. Thus, we could get the values which are more realistic and more reliable.
A New Feature Extraction Method for Underwater Targets
Authors: Wang Shi Long , Xu Yu Ru , Wan Lei , Tang Xu Dong
Published: December 2010

in the complex underwater environment, underwater images are taken by special underwater CCD camera and its S/N is low and the edge is fuzzy. For the four types of characteristic underwater targets, the novel moments called relative boundary moments are proposed, and the affine invariants of discrete moments are constructed. With scale, translating and rotating invariance, the moments can be used as the descriptors of the samples. Experimental results show that compared with the traditional regional moments, the new moment invariants not only can reduce the calculation in data processing to a large extent, but also improve the robustness and timeliness for engineering applications. When applying to the practical engineering, that is particularly approval for AUV to complete a certain mission.
The Study of Multi-Agent System Based on Decentralized Control Supply Chain Planning System
Authors: Gan Kai
Published: December 2010

The study on the decentralized control supply chain system is an important content of supply chain management (SCM) under the highly developed information technology environment.In order to enhance and improve the response speed and adaptability of changing market environment for the current supply chain planning system, this article used the theory of Multi-Agent system(MAS) operation mechanism in comparison with decentralized control supply chain system and others on the basis of the similarity and adaptability, then proposed a method of using the multi-agent system technology to solve the problem of the decentralized control supply chain production planning. Through further analysis, the article gave different production planning framework model according competition-cooperation relationship under decentralized control supply chain system.
New Immune Algorithm and Application in Power Filter Optimization Design
Authors: Chen Peng , Li Xin , Ren Shi Bin , Li Wen Hua
Published: December 2010

In this paper, for multi-objective, with strategy of antibody concentration with sufficiency vector distance, a novel immune selection operator was given, and a scale variable hybrid mutation operator, which introduced the variable scale method in the hybrid mutation, was given also. The algorithm was applied in the optimization design of filter. To apply the algorithm, passive power filter structure was introduced first, and then optimization objective and constraints of filter was given as follows. With the optimization objective and constraints, for an experiment circuit, calculate using the algorithm and experiment was carried on. At last, Comparison of the algorithm with genetic algorithm and nonlinear programming was given, it shows that the algorithm has better performance of self-regulation, and could quickly converge to the global optimum. These results prove that the algorithm is effective and practicable using in multi-objective optimization design.
Energy Efficiency of Refrigerated Docks for Cold Stores
Authors: Zhang Jian Yi
Published: December 2010

The energy efficiency and features of open docks and refrigerated docks are discussed. Two kinds of dock are analyzed under the same cold store conditions. Annual heat loads are calculated for the two cases. The results show that the annual refrigeration load of the refrigerated dock is only 31.1% of that for the open dock. The energy efficiency of the cold store, as well as the quality of refrigerated food, will obviously be improved when a refrigerated dock is adopted in a cold store.
The Realization of Dual-Channel PWM Signal Based on C8051F020 MCU
Authors: Liu Kai Xu , Duan Yu Bo
Published: December 2010

In the power balance of energy between single cells control and intelligent robot motor control need to use dual PWM signal, for use C8051F020 MCU multi-channel 12-bit ADC converter to convert the input signal of each group and compare ADC0 conversion value, And, the result of ADC0’s each channel gives Programmable Counter Array PCA0 to form of controlled dual PWM signal, and it’s frequency can be set. At the same time coming into being in pair of road PWM signals, use window detector ADC0 to realize reality measuring value surpassing range alarm and protection.
Study on Computer Virus Search System Based on Content Addressable Memory
Authors: Hao Shang Fu , Sun Bai Li , Wang Zhi Hui
Published: December 2010

The structure, characteristics and use of MCM69C432 are introduced in the paper, based upon which a virus search scheme is proposed aiming at its characteristics. Through constructing CAM rule matching unit, the package head and data load are filtered parallelly, and the filtered results are handled centralizely according to the rule response requirements. It makes the system more powerful in processing and applicability, which has a good application prospect.
An Optimal Rescheduling Mechanism of Modern Enterprise Manufacturing Resource
Authors: Zhao Xiao Qing
Published: December 2010

To the changeability and complexity of modern enterprise manufacturing resource in product manufacturing system, based on the holon theory, a composite holon construction model of enterprise manufacturing resource was proposed. On the basis of the model, some holon’s functions and holon’s construction were studied, and an optimal rescheduling mechanism of modern enterprise manufacturing resource was established. Finally, the simulation system of the manufacturing resource recombining based on holon have been demonstrated and validated by Flexsim software. It has shown this proposed method can effectively recombine enterprise manufacturing resource, and it can improve the rapid response capability of modern enterprise.
An Empirical Study on the Effectiveness of Self-Access Language Learning and its Autonomy Based on Self-Access Center
Authors: Wu Chun Mei
Published: December 2010

With the deepening reform of college English teaching in China, many self-access centers(SAC) have been established in universities to promote students’ antonomy and cultivate their leanring ability. Based on the theories of constructivism, humanistic psychology and cognitive psychology, the self-access language learning ( SALL), with its new emphasis on speaking and llistening , is a very good supplement to traditional classroom teaching ，whose focus is only on reading and writing. This paper intends to probe into the effectiveness of students’ SALL in SAC of Wuhan Polytechnic Universtiy through an empirical study. After analyzing the findings qualitatively and quantitatively, the results show that that learners’ autonomy, by and large, can be achieved. SAC and SALL is sure to be very helpful to arouse learners’ learning interest, foster their independence, improve their problem–solvling ability and facilitate their four-skilled abilities.
Location Problems of the Distribution Center under Uncertain Environment
Authors: Liu Cheng , Gu Kun Kun
Published: December 2010

Based on conventional location problems of distribution centers, the location problem of multiple distribution centers was considered, in which both the plant capacity and clients’ demands were fuzzy parameters. A mathematical model was built with fuzzy constraints and converted to an interval programming model based on cut set- by means of introducing the concept of cut set. Then, the interval constraint was converted to its certain equivalence for solution through the satisfaction, thus the interval programming problem was further converted to a deterministic 0-1 mixed integer programming problem for solution.