bluuebunny/crossref_metadata_2025 huggingface dataset:
VB-Based Simulation of Four-Bar Linkage
Authors: Li Yan Hua
Published: October 2013

The man-machine dialogue can be effectively realized by developing the animated simulation of four-bar linkage with VB. In this paper, through the analysis of linkage graphics, the animation flow chart of four-bar linkage is drawn.
Research on the Function of Hands Based on Mechanics and Kinematics
Authors: Wang Jian , Xing Yu
Published: October 2013

In track and field, triple jump is an influential and with complex technical difficulty among these track and field events. With the gradually improvement of scientific research and practice training in track and field events, their sports level also gradually improved. This paper describes the technique development and principle analysis of triple jump, emphasize the overall importance of movement rhythm and balance control in triple jump, further analyse balance control process of mechanical movement in triple jump, thus scientifically analyse both in the upper extremity balance control and timing function, which has important implications for the analysis and diagnosis of triple jump technology.
Fast Background Extracting Algorithms of Video Sequence Based on Invariance
Authors: Zhou Zhi Zheng , Jiang Shu Ming
Published: October 2013

In order to reduce the complexity and computation of the background extraction algorithm, this paper presents a new background extraction algorithm corresponding to the intelligent traffic environment based on the invariance of background. In the algorithm, we partition the background into sub-blocks, and compare the characteristics of the several continues frames in the video stream, then update the background block by fuzzy similarity processing in real time. The evaluation proves that the new algorithm can accomplish the higher efficient extraction with less computation complexity.
Research on Stress Acoustic Model in the Process of Mechanical Self-Excited Vibration Based on Finite Element Method
Authors: Chen Chuan Xiong
Published: October 2013

The self-excited vibration of machinery is a common vibration in mechanical vibrations. Mechanical self-excited vibration destroys the normal working of the mechanical device and leads to mechanical fatigue damage. If the self-excited vibration reaches to the vibration frequency of machinery, it can produce the resonance and result in the scrapping of mechanical devices. The study of mechanical self-excited vibration has great significance. According to mathematical finite element methods, this paper establishes the mathematical model of the mechanical natural frequency through the finite volume method and gives the mathematical derivation formula of mechanical devices self-vibrated frequency. The second part of the paper simulates self-vibrated process of machinery using the professional software ANSYS software. First, it establishes a three-dimensional model of the mechanical device through the pre-processing module and analyzes mechanical self-excited vibration through calculation module and gets the frequency modal map of self-excited vibration process. It studies the mechanism of the mechanical self-excited vibration combining with modern signal analysis techniques--wavelet analysis. It gets the vibration source location which provides a reliable theoretical basis for the study of mechanical self-excited vibration.
Detection Algorithm of Vehicles Based on Image Statistical Characteristics
Authors: Zhan Sheng , Zhao Kai , Sun Qin Ying
Published: October 2013

Aiming at the complexity of image recognition and the fluidity of the image itself, a new method to detect and track the target vehicles with the statistical features of the image gray was proposed. The one-to-one correspondence relationship between the target vehicle and the actual vehicle was built by the lane line symmetry and car installation angle. It will take the full image average grey value, target domain area, the perimeter between target domain and background domain border as the statistical characteristics. In addition, several order center distance of the target field distribution function was taken as one of statistical characteristics. The similarity between the extracted image characteristic parameter and the image characteristic parameter from the database at different distance is taken to identify the target vehicles accurately. The results shows that the algorithm cans effectively detecting and tracking the target vehicle in front of the host vehicle 90m apart.
Problems and Countermeasures of the Safety Engineering Design Development
Authors: Wang Mei Shen , Wang Hong Ru , Peng Shuang
Published: October 2013

Liquids and gases are referred to as fluids. Fluid mechanics is a branch of mechanics, which studies the fluid stationary and moving mechanical laws and its application in engineering technology. Fluid is very extensively applied in the project. Such as: heating ventilation and gas engineering, water supply and drainage engineering, construction, civil engineering, municipal engineering, urban flood control engineering. They all take fluid as the working medium, and effectively organize it through various physical effects of the fluid. Therefore, it is particularly important to well learn hydrodynamics.
Study and Analysis of On-Line Detection and Fault Diagnosis System of Rolling Bearing
Authors: Wei Jing Zi , Zhang Ran
Published: October 2013

This paper first of all gives an introduction to the structure of rolling bearing, development stage of fault and the main fault types; then, it makes an analysis of the common detection methods and the technologies involved in rolling bearing fault; at last, based on the emphasis on the rolling bearing on-line detection and fault diagnosis system of acoustic emission technology, it elaborates the basic principles of acoustic emission, rolling bearing fault detection and diagnosis system experiment setting. Meanwhile, it introduces modern signal processing technology into acoustic emission information feature extraction and state recognition, such as wavelet analysis and wavelet packet analysis.
A New Image Demising Method Based on Partial Differential Equations
Authors: Lin Yong Xing , Xu Xiao Yan , Zhang Xian Dong
Published: October 2013

In the paper, we discuss the image demising models, based on partial differential equations. It is through the use of the concept of variations in the calculus of the objective function minimization problem, defines the image processing tasks. The results show that the model expands 2d thermal diffusion equation. Therefore, it is easy to get solution is to use a simple iterative process.
iGPS Measurement Network Multi-Station Arrangement Design
Authors: Zhou Na , An Zhi Yong , Li Li Juan , Zhu Yun
Published: October 2013

In order to meet the measurement accuracy requirement of some patrol device iGPS position tracking experiment, the most rational, economic configuration and optimal arrangement of iGPS are needed to find. It presented the iGPS dual-transmitter measurement principle based on non-coplanar intersection principle, and also their uncertainty analysis. From the measurement unit of iGPS networkthe dual-transmitter measurement uncertainty simulation results, the relations between measurement accuracy and the intersection angle, azimuth angle, pitch angle and baseline length are studied, which provides a reference for arrangement of multi-transmitter of iGPS. The iGPS multi-transmitter arrangement simulation design of some patrol device iGPS position tracking experiment is put forward. The calibration test results show that: the measurement accuracy of station arrangement design is less than 0.4mm, and satisfied the experiment requirement.
Research on Energy-Saving Reconstruction for Office Building in Cold Area
Authors: Xi Hui , Hou Wan Jun , Sun Feng Ming , Zhang Sheng Yan
Published: October 2013

In China public buildings generally excessive energy consumption, including office building is the largest amount. The research, which is about office building energy consumption situation of cold region of China has built, analyzes the main way to achieve energy-saving, mainly including the building envelope structure, heating and air conditioning systems, lighting and electrical system, etc..
Research on Power Marketing Strategy Based on Intelligent Power Community
Authors: Niu Wen Dong
Published: October 2013

smart power technology is an important part of the smart grid, based on the analysis of the concept of smart grid and smart power technology and research status,the paper propose a new type of two-way interactive customer intelligent power marketing system. With reality, from the surface of the information collection system, intelligent demand-side management, customer knowledge management, load control, customer credit risk management, customer relationship management, customer resource valuation analysis of the basic functions of each sub-system and path, in-depth analysis of smart power technology and power marketing work.
Multi-Sensor Information Fusion and its Application in Robots
Authors: Zhang Ran , Wei Jing Zi
Published: October 2013

Multi-sensor Information Fusion can get more accurate information required by the system through fusing redundant, complementary, or more real-time information provided by multiple sensors. This paper, with the emphasis on the MIF technology, combining its application in mobile robots, is discussed from two aspects, namely theory and simulation experiments. First of all, this paper expounds the basic principle of MIF technology, systematic structure and gradation of information fusion and information fusion methods; Secondly, based on the theory of neural network integration, it discusses the application of MIF technology in the field of robots , providing an effective method for navigation and obstacle avoidance of mobile robots.
The Research of Auto Detecting the Brake for Construction Elevator
Authors: Hao Xiao Jun
Published: October 2013

This article researches mostly on how to detect the brake of elevator by using computer technique. It includes the hardware design and the theory of software on detecting. The hardware design is focus on its framework. The software-part analysize the idea and compute the parameter of the brake of elevator.
Arithmetic Implementation of FSK Based on DSP
Authors: Shi Ming Quan
Published: October 2013

FSK is a prior modulation scheme in the information transmission. It has many advantages such as convenience to realize, anti-noise and antiattenuation, so it is widely used in middle and low-speed data transmission. This paper designed a FSK system based on TMS320VC5402 DSP, The scenario analysed the arithmetic of FSK and realized it using C. This system produced FSK signal using keying. That means, two sine waves which have different independent frequencies represented the 0s and 1s of digital signals respectively, the data of one sine wave was composed of 64 points. The arithmetic stored the modulation data at a specific address; the author can observe the output wave by graphic display tools. Finally, the author verifies the accuracy and feasibility of this FSK system.
USB and CP2101 Communication Based on LabWindows / CVI
Authors: Li Gui Yan , Qi Xin Zhan , Huang Shan , Li Chang Wen
Published: October 2013

Many kinds of control instrumentation have USB interface as standard interface supplying more convenient, faster data transmission methods nowadays. However, due to the complexity of the USB protocol, developing applications using USB protocol is not very easy. We propose a smart method using the USB-to-UART chip CP2101 and design the software with LabWindows/CVI in this paper. A USB to UART hardware circuit design and the LabWindows / CVI environment USB CP2101 communication program design methods.
Research of Data Graph Mining Based on Telecommunication Customers
Authors: Gao Shang , Li Mei Mei
Published: October 2013

With the rapid development of the number of mobile phone users has accumulated a large number of graph data, graph data mining has gradually become a hot area of research. Traditional data such as clustering, classification, frequent pattern mining gradually extended to the field of graph data mining research. Introduced at this stage graph data mining technology research progress, summarizes the characteristics of the graphical data mining, practical significance, the main problem, and scenarios to discuss and forecast chart data, especially research on uncertain graph data become trends and hot spots.
The Study on Cognitive Wireless Sensor Netw
Authors: Wu Kai Yi , Ni Yi
Published: October 2013

In this paper, we have proposed the Energy Efficient Localization of Primary Users for Avoiding Interference in Cognitive Networks. This approach can be implemented in networks where GPS like localization techniques are not available. Our algorithm locates the PU based on leveling and sectoring approach and then disable region is identified to avoid interference to the primary user.
Preventing Wormhole Attacks in Wireless Mesh Networks
Authors: Luan Liang Yu , Fu Ying Fang , Xiao Peng , Peng Ling Xi
Published: October 2013

In a wireless mesh network, the need for cooperation among wireless nodes to relay each others packets exposes the network to a wide range of security threats. A particularly devastating type of threats is the so-called wormhole attacks. In order to defense against the attack, a type of wormhole attack model and a watch nodes-based wormhole attack detection scheme were presented in this paper. The scheme that is based on the combination of a number of techniques, such as distributed voting, watch nodes based detection and identity-based cryptosystem. Qualitative analysis and simulation show that the wormhole attack detection scheme is more advantageous over the some of the previous schemes in terms of performance and cost.
Network Security System Design Integrating Intrusion Deception and Dynamic Forensic Technology
Authors: Hao Gui Ying , Liu Feng
Published: October 2013

As the development of the network keeps on continuously changing, there is the very existence of brand new attacks that are unceasing. Under this circumstance, the corresponding network security system should be required to be equipped with adaptability. In this paper, active defense technologies are integrated on the basis of the traditional network security system. The active defense technologies have included the intrusion deception, dynamic forensic and so on. Through the connection with the traditional passive defense technologies such as the firewall and so on, a dynamic, comprehensive and adaptable network security system can be built. In addition, a detailed analysis research can be carried out on the work process.
The Building of College Network Experiment Platform for IPv6 QoS
Authors: Wang Jian Jun
Published: October 2013

This paper presents an object-event mechanism based overlay network simulation experimental platform (ONSP). The platform adopts object-oriented approaches to provide an effective application-layer active network simulation method. The method abstracts network elements, simulates the change of system performance through parameters setting, and introduces users session triggered by event. This strategy conducts experiments avoiding unnecessary construction of actual physical network, so that to save the cost of the experiment and to make mass network tests possible. At another time, the platform has established a complete performance evaluation model, and can synthetically measure the relative performance of variety of services to ensure the accuracy of test results. The productions in this paper will provide important support to overlay network services technology, QoS-assure technology, and applications of distributed multimedia systems.
Study on the Security of the Databases in Cloud Computing Environment
Authors: Gele Aori
Published: October 2013

In the modern information technologies, cloud computing is the most popular. However, the security problems in the application of the cloud databases should be never ignored. In this paper, the characteristics of cloud computing database are first introduced, and then the potential security problems as well as solutions in the application of cloud database are analyzed.
Research of Distributed Cache Technology Based on Cloud Computing
Authors: Song Kai
Published: October 2013

Cloud storage, data storage means occurring in recent years is based on cloud computing technology. It is the inevitable trend of data storage in the future. The article describes the definition and characteristics of cloud computing and design a generic cloud computing architecture, given its storage technology for cloud computing, cloud storage system architecture model. At last, the paper prospects the tendency of cloud computing and its storage technology.
Research on File System Event Monitoring in Android Platform
Authors: Zhang Rui Xia , Wang Ya Liang , Liu Yan Lan
Published: October 2013

Android is a standard and popular platform of various smart phone. Security thread is a major problem to smart phone. File system event monitoring is essential for many types of programs ranging from file managers to security tools. In this paper, we make research on file system event monitoring. Our approach involves file nodes monitor by Android API and Linux native system call. We compare different features between them. It shows that each method has its benefit and limitation. Linux system calls method outperforms API in flexibility and scalability. But it has its un-convenience to user for its page alignment. A comprehensive method is proposed to take advantage of significant performance gains.
Construction and Algorithm Analysis of a Social Network System Structure Based on P2P
Authors: He Fei , Chen Mei Lian , Tang Rong , Li Ming Yong
Published: October 2013

As social networking services, social network covers all the networking service form which regards human social as the core, obtains user behavior feature by situational awareness and finds potential social relations. By analyzing the application and system structure of context-aware technology, this paper proposed a mobile P2P social network system based on LTE network and its Algorithm and realized the structure of the mobile P2P social network system based on context-aware.
A CMOS Integrated Circuit Parameter Testing Method Using LabVIEW
Authors: Wu Xiao Bing , Peng Wan Quan
Published: October 2013

Software controlled measurement procedure, designed for testing of inverter integrated circuit voltage parameters, is presented in this paper. Described solution, performed on circuit HCF 4007 UB, is based on data acquisition PCI card NI 6713 and control programming application developed in LabVIEW 8.0 software environment, installed on standard. PC configuration. Designed solutions of virtual instruments performs measurements, chronological recording, graphical presentation and software analysis of measurement results regarding to input and output threshold voltage levels, from inverter transfer characteristic recorded for different circuit supply voltages. LabVIEW software support in the process of recording, measurement and software processing of the integrated circuit basic parameters, provides full software automation of these procedures.
Data Envelopment Analysis Model of Mechanical Product Design
Authors: Zhang Huan Cheng , Yang Ya Feng , Yang Ai Min , Shi Li Nan
Published: October 2013

For the existing problems in the design of mechanical products, based on the theory of fuzzy mathematics, the paper constructs fuzzy comprehensive evaluation model to comprehensively evaluate the existing problems. Then, by the obtained results, the model has a high degree of subjectivity. So, the paper combines data envelopment analysis with fuzzy comprehensive evaluation model, and establishes evaluation model of fuzzy data envelopment analysis. Ultimately, the paper improves the reliable and scientific evaluation model.
Cognos Clustering in IBM Connections Metrics
Authors: Du Jian Xia
Published: October 2013

This paper introduced how to configure a cluster environment for Cognos BI in Connection Metrics and how to troubleshoot the issues. Cognos Clustering greatly enhance the load capacity of the report server, improve the performance, effectiveness and capacity, make the server more stable, ensure the user quantity concurrency
QoS-Constrained Resource Scheduling Base on Market Economy Models in Grid Computing
Authors: Chen Lei
Published: October 2013

The Grid task scheduling algorithm is proposed that takes the service quality of resource scheduling, time and cost together into consideration, so that it can better meet user tasks Quality of Service (QoS) requirements and make the complex grid environment open. On the basis of the price model drove by supply and demand in economy, we design the Grid task scheduling algorithm in the market economy model. The experiment results indicate the effectiveness of proposed algorithm in terms of usersQoS guarantee. It reduce data access latency and decrease bandwidth consumption.
The Synthesis of the Amphiphilic Triblock Cationic Copolymer mPEG-PCL-PDMAEMA the Synthesis and its Impact Study on the Load and Transfected of siRNA
Authors: Gao Fang
Published: October 2013

Polyphosphate is a biocompatible, modified and functionalized biodegradable polymer. It has a broad application prospects in the field of medical biomaterials. It is an excellent drug carrier material. In this essay, through the open-loop and ATRP polymerization, it synthesizes biodegradable amphiphilic triblock copolymer PEG-PCL-PDMAEMA. Composition and structure of the polymer is Characterized by 1H NMR and IR In this essay. This essay also studies that the polymer in water can be self-assembled to form a stable nanoparticles; The polymer micelle can form composite particles with siRNA,. This essay also studies the load and transfection of the polymer micelles on siRNA.
The Dissolution Characteristics of Air-Cooled Unit Condensate Polishing Filter Materials in High Temperature Water
Authors: Yu Yuan Chun , Zhou Bai Qing , Chen Chen
Published: October 2013

Condensate polishing filter materials are water-insoluble organic polymers. But in air-cooled condenser, high temperature condensing water in summer which approaching and exceed 60°C, which may result in filter materials degradation and release impurities. This paper discusses dissolution characteristics of four kinds of polishing filter materials in high temperature water. The specific conductance (SC), pH, UV absorption at 254nm (A254), total organic carbon (TOC) and the concentrations of ions in their extraction liquid ware measured after heat test as composite indicators. In addition, the trends of A254 and SC variation with heating time were measured. A comprehensive indicator system of filter dissolution can accurately determine the type and quantity of leachables which affect the water and vapor quality.
Research on Preparation and Property of Alternating Multilayer Polymer Electromagnetic Shielding Materials
Authors: Zhang Lei
Published: October 2013

With the development of materials science and technology, performance and preparation of polymer materials becomes a hot topic. The heat resistance and corrosion resistance of Polymer material are strong and can be manufacture for composite materials. It is widely used in many areas. This paper adds metal shielding materials into polymer materials and uses layered coating technology. This paper treats metal mesh and PET film composite structure as in the electromagnetic shielding layer and prepares the alternating multilayer polymer electromagnetic shielding materials. This paper tests electronic shielding effect of the material. It mainly detects the shielding effect of pass rate, the decay rate, and the electromagnetic intensity of visible light. The result shows that the permeation rate of the materials for visible light is about 40%, and the attenuation effect is 85db. Multilayered metal shielding mesh shields 60% magnetic field strength and obtains good electromagnetic shielding effects. This paper tests the mechanical properties of the material through the polarizing microscope which proves that alternating multilayer polymer material has good continuity mechanical properties and high yield strength and heat resistance. It provides theoretical support for the development of the new type of electromagnetic shielding materials.
The Energy Environment System Research's Scientific Advance of Chemical-Looping Combustion
Authors: Quan Wei
Published: October 2013

In recent years, it is more common to use biological chemical dyes, which the energy environment system research of chemical-looping combustion has received increasing attention in the field of science. It is the product that environmental science and energy supply match each other, and it also is the link between them. Through the recycle and use of CO2, this technology use physical and chemical methods again to achieve sufficient burning of fuel and the protection of environment.
Iron Ore Blending Based on Linear Programming
Authors: Liu Wen Sheng , Li Fu Ping
Published: October 2013

Ore Blending is an important problem that the majority of mining enterprises have to face. To solve the ore blending problem, the production plan should be made firstly, and then small adjustments should be made in according to the actual condition. By effective control and management, the balance of ore quality and stability will be realized. This paper introduced the linear programming and the concept of ore blending. A mathematical model is established by linear programming, solving the problems about ore blending of multi-seam mining in iron Mine of Tangshan hebei minging Ltd., giving the countermeasure aiming at the problem, realizing the effective management and control of ore quality.
Preface
In mine enterprises ore Blending is mixxing different grade ore evenly in a planned way in mining and shipment process, according to the existing resources and production capacity, according to the relevant indicators, to ensure that the final ore quality standard (such as ore grade, reserves, etc.) meet demand department requirements. At the same time collocating part lean ore in a planned way help to meet the industrial economic use standard, which is helpful to rational utilization of mineral resources, improve relationship between time and space for stope mining, avoid the phenomenon of pressure ore, maintain the normal production of mine to create favorable conditions. Improving the quality of the part lean ore grade help to increase the price standard and mining economic income. Linear programs arise in a variety of practical applications. It is capable of handling a variety of problems such as Portfolio [, Land consolidation optimization [, watershed management [, capacity allocation [,etc.
High-Precision Programmable Resistor Based on Search Method
Authors: Li Gui Yan , Li Chang Wen , Dai Xiu Liang
Published: October 2013

We designed the binary programmable resistor, using search method found near the nominal resistance value closest to the actual resistance. This method is effective to overcome the contact resistance, temperature drift effects, To achieve a low-cost high-precision.
Obstacles in Chinese Agricultural Water-Saving Technology Promotion and Related strategies
Authors: Pan Hong Xia , Fu Heng Yang , Bai Lai Xi
Published: October 2013

In recent decades, China has done a great deal of effort in promotion of agricultural water-saving irrigation technology, but there are still many problems, especially in the northwest, north and other arid and semi-arid regions. This paper describes the present situation of China's agriculture irrigation, and analyses Obstacles of Chinese agricultural water-saving technology promotion from various perspectives. Some suggestions are given for existing problems.
Study on Domestic Water Price and Water Saving Consciousness in Beibei District, Chongqing
Authors: Jin Jun Ying , Yang Lu , Zhang Wei Hua
Published: October 2013

Water price is a better economic lever which may keep suitable water resource development. This study mainly focused on domestic water use and water-saving consciousness from the view of local residents and students through social investigation in Beibei district, Chongqing, and discussed the maximum water price accepted by people through analysis the ratio of monthly water consumption to monthly income, meanwhile, the awareness of saving water was analyzed. The results show that the maximum water price afforded by the residents is 0.56US$/m3.
Water Resources Governance Stakeholder Analysis and Treatment Network Construction
Authors: Shi An Na , Qi Zhi Guo
Published: October 2013

By introducing social network theory to examine water resources management, we propose a connotation in the governance of water resources management, governance and management features content that water resources management is essentially belongs to a network of public resources around the governance model, different from the traditional bureaucratic model water management, but also from the introduction of market mechanisms and the formation of the market model of water management. Organizational analysis is to establish the basis for management analysis framework, under the guidance in this basic understanding, and further studies are needed on the river basin water management network organizational model to analyze, from the organizational characteristics of basin water resources management to start in order to build for Water Resources governance analysis framework. From Taihu Lake Basin Water Resources Management and other activities of the participants and the organization perspective, management of water resources presents a network organization of the state. Theoretical perspective through social networks, we further basin water management network organizational model for analysis.
Quantitative Retrieval of Tidal Flat Moisture Based on TM Images
Authors: Yang Li Jun , Wu Ming Fei , Zhu Yun Hong
Published: October 2013

Based on spectrometry, the remote sensing inversion researches of the surface tidal flat moisture are conducted in combination with spectral values measured in the field and moisture measured in the laboratory. Firstly, the remote sensing images are preprocessed, including geometric correction, atmospheric correction and image enhancement. Then, the spectral characteristics of typical ground objects are analyzed to partition the whole image and separate the bare tidal flats. At last, TM5 wave band and exponential model are determined to be the best wave band and optimal model for the inversion of the bare tidal flat moisture. The experiment shows: (1)This method can help to improve the accuracy of the surface tidal flat moisture inversion, with the maximum error of moisture inversion is 3%, the relative error is 7.1% and the average relative error is 6.5%. (2)The surface tidal flat moisture is of evident gradient distribution features, which can be used as basis of tidal flat topographic survey.
Influence of Light on the Anthocyanins Stability and Antioxidant Activity of Black Currant (Ribes nigrum L.) Extract
Authors: Jia Na , Kong Bao Hua , Liu Qian
Published: October 2013

Black currant (Ribes nigrumL.) possesses excellent antioxidant activity since it is rich in a great deal of phenolics, while its major phenolics, anthocyanins, are sensitive to light. This study investigated the anthocyanins stability and antioxidant activity of black currant extracts (BCE) stored under natural outdoor/indoor light and in the dark for 25 days. The anthocyanins content and antioxidant activity significantly decreased both in the presence and absence of light (P<0.05). The degradation of anthocyanins followed first-order kinetics, and the k values in light were higher than that in the dark, which revealed that the anthocyanins were more stable in the dark. Exposure of the BCE to light accelerated the degradation of anthocyanins and the loss of antioxidant activity, while BCE stored in darkness maintained relatively higher anthocyanins content and antioxidant activity. These results suggested that the BCE rich in anthocyanins should be protected from light during storage to maintain its antioxidant activity and bioactive compounds.
The Scale and Antiscale Laws of the Main Ions in the Recycling Cooling System Used Reclaimed Water
Authors: Yue Guan Hua , Zhang Man , Zhao Yuan Ling
Published: October 2013

In recycling cooling system used reclaimed water, the main ions of the reclaimed water must form chemical scales with the increase of temperature and concentrate ratio , In order to control the formation of scale, we must control the fouling ion in the reclaimed water.In this paper the influence laws of Ca2+, Mg2+, HCO3- , SO42-, PO43-, NH4+ , NO2- , NO3- in reclaimed water on the scale inhibition are researched . The experimental results show that Ca2+, HCO3- , PO43- in reclaimed water have negative impact on scale and antiscale ;Mg2+ and NH4+ have positive effect on scale and antiscale;and SO42-, NO2- , NO3- hardly affected on scale and antiscale.
Experimental Study on Micro-Polluted Raw Water of Kongmu Lake Treatment by Vortex Clarifier
Authors: Hu Feng Ping , Hu Gui Zhou
Published: October 2013

Through pilot scale test, inspection the effect of treatment of micro-polluted raw water of Kongmu Lake with vortex clarifier accomplished by the addition of coagulant PAC. After the stable operation of the vortex clarifier, in the 30 mg/L of dosage and 6.8 min of flocculation time conditions, the removal of turbidity, NH3-N, TP, UV254 and COD is 94.2%, 22.9%, 84.8%, 45.2% and 78.5%.
Design and Implementation of the Spatial Database for Reclaimed Water Utilization
Authors: Guo Yu Mei , Cun Rui Tao , Li Xiao Xiao , Liang Hong
Published: October 2013

In order to meet the application requirements of visual management and analysis of the information about recycled water use, the spatial database for the City Recycled Water Use is designed and constructed in this paper based on Geodatabase the spatial data model as well as UML and CASE as tools. The View Layer design, Concept design and Logic Design of the database of the recycled water use is explained in details. Then the application of the designed database to implement the Dianchi Lake Basin recycled water use in GIS platform is carried out and parts of the details is described in this paper.
The Legal Regulation of the Small-Scale Rural Hydropower
Authors: Luo Dong Ping , Yang Ting , Luo Bi Yun
Published: October 2013

The source of small-scale rural hydropower in our country is numerous. The exploitation and construction of small-scale hydropower plays a vital part in the economy, environment and ecology in our rural area. Meanwhile, the experience which we have learnt has promoted the development of small-scale hydropower in the whole world. However, there still exist certain problems. This thesis has summed up those problems, and gives some legal regulations. In this way, the small-scale rural hydropower would make a big impact in our country.
Rammed-Earth Material Compressive Strength Nondestructive Testing for Fujian Earth-Building
Authors: Guo Li Qun , Li An Lu , Peng Xing Qian
Published: October 2013

Fujian earth-buildings have much attention of the world for their protection since they have became the world heritage in 2008,and have do various building protection research, but the research of rammed-earth material strength nondestructive testing has not began. Through the research of working principle of the rebound hammer and rammed-earth material mechanical properties, increasing the end of the rod to improve the detection precision. Consult the method of building the testing strength curve for concrete to build testing strength curve of rammed-earth material, lays a foundation of field detection for the earth-building in service, contribute to improve protection measures.
Research on Shear Strength of Compacted Loess
Authors: Wang Juan Juan , Deng Jun Tao , Wu Song Lin
Published: October 2013

Compacted loss widely used in the construction, such as embankment, dam, foundation backfill and other projects. Influenced by rainfall factors, the moisture content of compacted loess often vary so the shear strength will also changed. This paper studies the shear strength parameters of compacted loess through direct shear tests. In the dry density under the same conditions, the cohesion, internal friction angle of compacted loess decreases with the increase of water content. Summed cohesion and water content showed a quadratic parabola and internal friction angle and water content was also found quadratic parabola; further considering the effects of water content and dry density of compacted loess got shear strength formula. Shear strength formula.
Setting for the Application of Phase Change Paraffin in Block Masonry
Authors: Jiang Feng , Hou Yong Le , Hu Yong Lin , Zhu Wei Dong , Wang Qing Hua
Published: October 2013

This paper studies the insulation properties of masonry filling paraffin composite phase change material. With high density polyethylene (HDPE) as wrapping materials and solid-liquid mixing paraffin as phase change materials, solid-liquid mixed paraffin phase change material with different amount of admixture is prepared, and the problem of flowing after paraffin phase change is then solved. The phase change temperature and the phase change latent heat of composite phase change material with different amount of admixture are tested. The results showed that the composite material with 30% of 52 # solid paraffin, 70% of liquid paraffin, 70% of HDPE coating performs best as to the phase transition temperature and latent heat. On this basis, This paper studies the composite phase change wall with phase change materials 0%, 33%, 66% and100%. Results show that the composite phase change material wall’s heat preservation performance has significantly improved. the temperature fluctuation range of internal and external wall surface is 4.2 °C lower than unfilled wall.
Technical Analysis on Lignite Drying Technology with High Temperature Flue Gas
Authors: Wen Zhi Qiang , Zhu Xian Ran
Published: October 2013

The procedure and system of drum drying technology are introduced for lignite drying and upgrading with high temperature flue gas. The total moisture and inherent moisture of lignite decrease significantly after being dried and the lower heat value (LHV) increases greatly, which means that the quality of lignite is improved obviously. Both the moisture and air dried volatile of the dried product coal decrease gradually when increasing the drum inlet temperature. However, only the moisture decreases and the volatile varies little when increasing the drum outlet temperature.The rotating speed of drum will make a few impact on the drying degree. Because the combustion load and the drying output will affect each other, it is recommended that the independent pulverized coal system is added. The key factors affecting the system material balance are the ratio of fine-grained powder and lower heat value. The appropriate ratio of fine-grained powder is suggested. The inert atmosphere feeding system which can control the oxygen content independently must be designed.
Research on the Treatment of High Concentration Dust with Bag Filter
Authors: Leng Ting Shuang , Liang Bao Rui , Song Cun Yi , Tong Zhen Song , Liao Hong Qiang
Published: October 2013

Related trials in the treatment of high concentration desulfurization dust were operated in order to optimize the parameters of bag filter, established a set of data fit to semi-dry flue gas desulfurization dust, processed simulated flue gas with a concentration of SO2 600mg/m3, adopt filtration velocity between 0.63 ~ 0.98m/min, injection pressure between 0.3 ~ 0.4MPa, injection time between 200 ~ 300s. The experiments proved that the selection of the filtration velocity about the treatment of high concentrations desulfurization dust should be distinguished from the general cases. In addition, pulse pressure also should not be too high.
Autothermal Thermophilic Aerobic Digestion Process and its Kinetic Model for Pretreating Klebsiella Pneumoniae Waste
Authors: Liu Jing Ming , Shi Le , Wang Hong Zhuan , Jia Wen Zhi , Zhu Zhi Rong
Published: October 2013

An autothermal thermophilic aerobic digestion (ATAD) and its kinetics were studied for pretreatment of waste Klebsiella pneumoniae strains from 1, 3-propanediol (1, 3-PD) fermented product. The total suspended solids (TSS), pH value, Redox potential and temperature variation by self-heating were investigated, including the numbers of pathogens. The results showed that TSS removal ratio and the temperature reached 62.75% and 65 °C respectively. Besides, the pathogens removal ratio was 100%. By using a patch-typed process of ATAD for pre-treating waste Klebsiella pneumoniae strains from 1, 3-propanediol, TSS removal ratio can reach 65.0%, solids retention time of 13 d. The relative deviation between the calculated and experimental values is less than 12.80%, and the results from the kinetic model developed for the ATAD process had a good agreement with the experimental results.
Quantum Chemical Calculations on Binding Energy of Alkyl Substituted Crown Ethers with Sr2+
Authors: Hao Miao Li , Li Ying Ming , Zhang Ying , Lan Xiao Rong , Guan Yu Lei , Yang Bo Lun
Published: October 2013

Structures of Dibenzo-18-crown-6(DB18C6), Di-methyl-dibenzo-18-crown-6(DMB18C6), Di-tert-butyl-dibenzo-18-crown-6(DTBB18C6), Di-tert-amyl-dibenzo-18-crown-6(DTAB1C6) and their complexes with strontium ion were optimized based upon DFT at B3LYP using 3-21G basis. The binding energy of crown ethers with Sr2+ was calculated according to the energy of optimal structures. The complex strength increased gradually from DB18C6 to DTAB18C6, which could be related to the changes of cavity size of crown ethers and electron density on the crown rings. Addition and extension of alkyl groups on DB18C6 could enhance the combination between crown and Sr2+.
Study on Fly Ash for Oil-Containing Wastewater Treatment
Authors: Fu Dan
Published: October 2013

In this paper, the adsorption properties of oil-containing wastewater on Fly Ash （FA）were investigated. The effects of contact time, adsorbent dosage, pH value and the temperature were examined. The equilibrium adsorption data are analyzed using Langmuir and Freundlich isotherms. The Langmuir isotherm fits the experimental results well. The study indicates that FA is a potential adsorbent for oil-containing wastewater treatment.
Experiment and Simulation for Grid-Connected Photovoltaic Micro-Invereter
Authors: Yin Li Jie , Zhen Ya , Fan Qi Li
Published: October 2013

A modeling method of single-phase grid-connected photovoltaic micro-inverter is presented in this paper,which depends on the topology structure of fly-back converter. Simulation of the micro-inverter is performed using Matlab software, which has the virtues of high accuracy and fast speed. Prototype experiment results show that the simulation model can be a true reflection of the working process of a micro-inverter, and could be used to verify the control algorithm and select the control parameters.
Investigation on the Effect of Gallium on the Efficiency of CIGS Solar Cells through Dedicated Software
Authors: Ullah Hanif , Marí Bernabé , Cui Hai Ning
Published: October 2013

This work reports on the analysis of thin-film copperindiumgalliumdiselenide (CIGS) solar cells by using Solar Cell Capacitance Simulator software (SCAPS). We have modeled a PV device, which consists in a CIGS absorber, a CdS buffer and a ZnO window layer. We have studied the behavior of CIGS absorber as a function of Gallium content by simulating the behavior of CIGS solar cells versus the Ga content in the absorber layer.
Chinese Spicehush (Lindera communis) Seed Oil Catalyzed into Biodiesel by Enzymatic Method
Authors: Zhou Zi Yuan , Wang Wei Gang , Duan Jiu Fang , Zhu Li Wei , Jiang Jian Xin
Published: October 2013

Chinese Spicehush (Lindera communis) is widely distributed in China. In this paper, the biodiesel production fromLindera communisseed oil by immobilized lipase Lipozyme TLIM and Novozym 435 was studied. The effects of reaction time, segmented addition of methanol, lipase loading, organic solvents and ultrasonic on the transesterification were compared. In addition, the stability of lipase was also studied. The results show that mixture of Lipozyme TLIM 3% and 1% Novozym435 not only improves the catalytic activity, but also reduces the cost of using the enzyme. The yield of methyl esters is 90.8% after reaction of 12 h.
Monitor the Impact of Marine Renewable Energy Devices on Local Environment
Authors: Liu Jia , Xu Feng , An Xu Dong , Zhang Qiao , Yang Juan
Published: October 2013

The development and utilization of clean and renewable marine energy sources will be a way for the development of economy. Although on a global scale the advantages of renewable energy are not in doubt, the impacts on the local environment must be carefully considered. The sonar devices could be used to monitor the underwater environment around the marine renewable energy device. In this paper, a Multi-beam Echo Sounder is introduced. And the measured results in a lake are given, which are shown that this sonar could detection the fish effectively.
Genetically Engineered Saccharomyces cerevisiae Strain that Can Ultilize Both Xylose and Glucose for Fermentation
Authors: Ge Jing Ping , Zhang Lu Yan , Ping Wen Xiang , Zhang Meng Yun , Shen Yan , Song Gang
Published: October 2013

The primary problem in producing fuel ethanol through microorganism fermentation with lignocellulose is the strain. We constructed a URA3-directed low copy integration-expression plasmid pZMYBX1 and rDNA-directed high copy integration-expression plasmid pZMYX2. Using the lithium acetate transformation method, we co-transformed the linearized plasmid pZMYBX1 (StuI) and pZMYX2 (HpaI) into theS. cerevisiaecells. Ultimately, we obtain three recombinants: HDY-ZMYWBG1, HDY-ZMYWBG2 and HDY-ZMYWBG3. The ethanol yield for HDY-ZMYWBG1 and HDY-ZMYWBG3 are 0.368 g/g and 0.365 g/g, respectively, which are higher than the 0.330 g/g yield for W5. This findings show that the xylose metabolic pathway could be introduced into theS. cerevisiaeto produce an alternative strain for the production of biological ethanol from lignocellulose substrate.
Study on the Pyrolysis Characteristics and Mechanism of KCl-Pretreated Sunflower Stalk
Authors: Chen Dong Yu , Liu Qing Yu , Hu Yan Qing
Published: October 2013

To study the influence of KCl pretreating on the pyrolysis kinetics of sunflower stalk, the pyrolysis of sunflower stalk pretreated by different concentration KCl solutions were performed by nonisothermal thermogravimetric analysis (TGA) at five different heating rates. The Ozawa and Kissinger methods were employed to calculate the activation energy and the Šatava method was used to obtain the kinetic mechanism model. The results showed that the pyrolysis process of the sunflower stalk pretreated by 3% and 10% KCl solution can be separated into four stages (water loss, depolymerization and vitrification, thermal decomposition, and carbonization). With the heating rate increasing, the main pyrolysis zone of the TG (thermogravimetric) and DTG curves move to the higher temperature direction, and the maximum pyrolysis rate and its corresponding temperature increase too. Adding a small amount of metal salts is conducive to the formation of volatile, and a certain amount of metal salts can improve the charcoal yield. More KCl additive makes the lower activation energy value, and the obtained activation energy value increases with the heating rate increasing. By means of the Šatava method, the kinetic mechanism model for the pyrolysis of KCl-pretreated sunflower stalk is Zhuralev-Lesakin-Tempelman equation, which is three-dimensional diffusion.