bluuebunny/crossref_metadata_2025 huggingface dataset:
Preliminary Study of Incipient Electrical Impedance Change and Detection of Brain Tissue after Ionization Injury
Authors: Chen Chao Shuang , Xiao Feng , Xu Shi Wei , Tao Feng , Shi Xue Tao , Liu Rui Gang , Dong Xiu Zhen , Fu Feng
Published: September 2011

Large doses of ionizing radiation can cause acute radiation disease, which is likely to lead to death in severe cases. Secondary injuries may result in major illnesses such as extensive hemorrhage, anemia and DNA mutation. Therefore, early detection of ionization injury and its degree is of great significance to treatment, which has also been the goal of radiology domain. Some evidence has been found that normal brain tissue has lower electrical impedance than ionization injured brain tissue. Although resistivity based on impedance measurements needs further investigation, electrical impedance could be used as an indicator for incipient changes in brain tissue. In this paper, we propose a systematic demonstration of electrical impedance imaging technique used for the detection of ionization injury of brain tissue. By comparing normal brain tissue of rabbits (control group) and ionization injured brain tissue of rabbits (experimental group) we observed that the experimental group showed a striking contrast with the control group. During a span of twelve hours the one dimension impedance of the former group has ascended remarkably and in two-dimensional images the location and area of the injury can be observed. The results of the completed experiments suggest that electrical impedance [1]tomography (EIT) may become an effective technique to detect incipient ionization injury.
Design, Analysis and Test for Micro-Mechanical Piezoresistive Accelerometer
Authors: Sui Li , Zhang Jing Hua , Liu Jian Feng , Shi Geng Chen
Published: September 2011

First of all, this paper analyzes the piezoresistive accelerometers’ research achievements at home and abroad. Then, design, manufacturing and testing method of the accelerometer array is presented. According to the detection requirements of fuze’s environmental forces, this paper provides an array accelerometers structure. In this way, each independent chip has 2*2 accelerometers, and every two accelerometers have the same structure sizes. So, the accelerometer array has two different measurement ranges. In order to reduce the influence of cross sensitivity, the accelerometer uses criss-cross beams. Every single accelerometer comprises sensing unit, signal processing circuit and self-test unit. According to the characteristics of processing plant, an entire series of independent processes for micro-mechanical piezoresistive fabrication is designed, and also given the layouts. The accelerometer is fabricated and its sensitivity and self-test performances are tested in this paper, finally this paper gives the reasons which cause test errors.
Temperature Field in Electric Control Unit of Diesel Engine and its Optimization Design
Authors: Liu Zhen Jie , Lei Yu Long , Li Yong Jun
Published: September 2011

In order to satisfy the requirements of the high reliability of electric control unit (ECU) of the Diesel Engine, the thermal analysis of ECU was performed by using the software FLOTHERM based on the finite volume method. The temperature field of ECU was obtained under different operating conditions. The structural optimization of ECU was completed to solve the problem of local high temperature. As a result, the operational temperature of ECU is reduced under the allowable limit, and its reliability is improved. The physical experiment shows that the thermal analysis and structural optimization are valid. The local high temperature could be reduced effectively and the operational reliability is improved.
The Preparation and Evaluation of α-CSH/β-TCP Combined Artificial Bone
Authors: Mao Ke Ya , Zhou Fei Hu , Cui Fu Zhai , Li Jiang Tao , Cheng Zi Shen , Li Peng , Wang Zheng , Mao Ke Zheng , Wang Yan
Published: September 2011

In this paper, the combined artificial bone made from α- calcium sulphate hemihydrate（α-CSH） and β- tricalcium phosphate (β-TCP) was investigated and at the same time the study explored: the method of preparing the combined artificial bone. Scanning electron microscopy (SEM), Powder X-ray diffraction (XRD), Thermogravimetric (TG), Differential scanning calorimetry (DSC), and Mercury porosimeter were employed to characterize the samples. Results indicate that the combined artificial bone can be prepared by α-CSH and β-TCP using dehydrated alcohol as a solvent; β-TCP was made from cancellous bone in the femur of cattle under special conditions, which contained the spatial structure of normal cancellous bone; α-CSH was made from CSD under special temperature and pressure, which is more pure and regulation in crystal form.
Analysis of Contact Lines on Corrected Planar Double-Enveloping Worm Wheel
Authors: Zhang Yue Min , Wang Xiao Lin , Hao Xiao Ru
Published: September 2011

The tooth-surfaces of corrected planar double-enveloping worm wheel were established by programming in MATLAB with the theory of spatial engagement. The contact lines were analyzed, and the contact styles were classified with given parameters. A new method of judging the types of contact lines was brought out. Based on the theory of spatial engagement, the re-machined planar double-enveloping worm gear is established by programming with MATLAB software. The contact lines on the worm wheel tooth-surface are analyzed and given the method of the contact line kind judgment.
Multisensor Video Fusion Based on Surfacelet Transform
Authors: Zhang Qiang , Li Hui Juan , Ma Zhao Kun
Published: September 2011

Based on the three dimensional surfacelet transform, a novel multisensor video fusion algorithm is proposed, in which, multiple frames of input videos are regarded as special three dimensional signals and fused as a whole rather than frame by frame. Meanwhile, selection principles for different subband coefficients are discussed in detail. Experimental results demonstrate that the proposed algorithm outperforms the traditional individual-frame-based and motion-based methods in spatial-temporal information extraction as well as in temporal stability and consistency. In addition, it does not require the motion target detection pre-step and is easy to implement.
Light-Weighting Design of Eco-Power Automobile Chassis Made from Green Composite and its Topology Optimization in FEA
Authors: Sun Bao Zhong , Luan Kun , Gu Bo Hong , Fang Xiao Meng , Zhang Jia Jin
Published: September 2011

Green composite made from ramie fabric and polypropylene (PP) is a kind of recyclable and environmental friendly material. Ramie fiber tows have relatively good mechanical properties comparing with other bast fibers, and hence the fabric woven by ramie yarn shows excellent in-plane mechanical behaviors. PP can be fully recovered and recycling used for its thermoplastic character. Ramie fabrics reinforced by PP have better shape formability and maintenance. In this paper, we proposed a plain weave in sample dobby loom, and reinforced four laid-layers together by PP particle through hot pressing. The mechanical behaviors of the ramie-PP composite were tested by MTS-810 Material Testing System in weft and warp directions separately which were essential parameters to the following topology optimization in finite element analysis (FEA) software. A body of eco-power automobile consisting of shell and chassis was original designed in Pro/E® Wildfire 5.0. For the chassis is the main bearing structure, it is an important part in the eco-power automobile body and was chosen to be topology optimized. Fiber volume fraction and structure optimization of the chassis model are evaluated and simulated to guide the material formation of manufacture progress.
New Materials for Auto-Body Lightweight Applications
Authors: Guo Rong Chun , Wu Na , Zhang Gui Rong
Published: September 2011

The main developing trend of automobile industry is promoting performance, lowering fuel consumption, reducing hazard gas emission and promising safety of driving. The automobile lightweight technology has attracted more and more attention recently. Furthermore, auto-body lightweight is very important to automobile lightweight, and new material has become an important technical support for auto-body lightweight. In this paper, the currently used materials in automotive industry were reviewed, and the focus has been put on the application of new lightweight materials in auto-body and the trend of development.
Analysis and Optimization of Thermal Characteristics for NC Lathe Spindle System
Authors: Hu Ru Fu , Chen Xiao Ping , Yao Huan Xin
Published: September 2011

Improving thermal characteristics is a crucial approach for increasing machining accuracy of NC lathe. Modeling and analysis of thermal characteristics to a high speed NC lathe were implemented by using finite element method in this paper. Based on this, temperature rise characteristic of the whole spindle system was obtained. The thermal deformation of spindle system due to thermal-mechanical coupling was calculated. Layout and parameter were optimized for the radiating plate of spindle box. And this leads to a considerable reduction in the run-out error of spindle head. The optimization result reaches the expected goal.
Real-Time Tool Wear Monitoring Based on Feed Motor Current in Chuck-Center Mounting Condition
Authors: Tanabi Hamed , Babaei Naser , Babaei Alireza
Published: September 2011

On-line tool wear condition monitoring is a significant area of research in automated machining process. This study concerns the development of an on-line tool wear condition monitoring system based on a fuzzy logic scheme. The feed motor current was measured and used as the input of a fuzzy process. Previously, most studies in this field have assumed the workpiece as rigid. However, in practice, cutting force causes the elastic deflection on workpiece and changes actual cutting depth. Therefore, due to coupling between actual depth of cut and feed motor current, the measured current values vary on cutting length according to workpiece elastic deflection pattern. This oscillation in current signal which is used as the input of monitoring system, can affect output results. Thus, in this study in order to achieve more accurate results, the workpiece clamping condition has been considered and through monitoring software a correction factor has been applied on outputs. Experimental results indicate that the proposed method can be reliable for practical applications of tool monitoring systems.
Studying the Bubble Characteristics of Gas – Particle Flow in a CFB through Image Analysis
Authors: Li Hai Guang , Zhao Zeng Wu , Li Ke , Wang Yong Chuan , Wu Wen Fei
Published: September 2011

This study is based on the image processing system by the authors, and performs microscope observations of the bubbles flow in dense-phase transport region of circulating fluidized beds. The research has tested and experimented on a cold scale-model circulating fluidized bed with a riser that has a 0.30mm × 0. 28mm cross-section and is 2.90 m tall with a video camera utilized to visualize the bubble structure through a transparent Plexiglas wall. The experiment was carried out at different particle sizes, different bed materials ,different heights and different height regions .The result analyzes the impact factor of the bubble size, shape and so on in the wall.
Research and Application on Bionic Pattern Recognition
Authors: Wu Xiao Jia , Tian Qi Chuan
Published: September 2011

Studies on biology basis from human being or other animals have attracted an ever increasing attention in pattern recognition. This paper describe a new model of pattern recognition principles, witch is based on “matter cognition” instead of “matter classification” in traditional statistical pattern recognition. This new model is better closer to the function of human being, rather than traditional statistical pattern recognition using “optimal separating” as its main principle. So the new model of pattern recognition is called the Bionic（or cognitive） Pattern Recognition. In the support of this theory, the pulse coupled neural network (PCNN), an entirely different neural network from traditional artificial ones, is used for image target recognition. Through the contrast of the image, the linking strength of each pixel can be chosen adaptively. After the processing of PCNN with the adaptive linking strength, new fire mapping images are obtained for each image from sensor. The clear objects of each original image are decided by the compare-selection operator with the fire mapping images pixel by pixel and then all of them are merged into a new clear image. As a result, the target which was polluted by noise was recognized correctly.
A Discussion on New Manufacturing Method Based on Synergetics Theory
Authors: Dong You Geng
Published: September 2011

This paper points out the flaws of the CIMS, and states that synergetic manufacturing method that is based on Synergetics theory, is able to overcome the majority of the flaws in CIMS. It describes a new method model of synergetic manufacturing, which divides the enterprises into three types: Design, Manufacturing and Auxiliary, they are connected via the data exchange platform that is established with the aid of internet.This new manufecturing model breaks through the limits, that traditional manufecturing industry has, among the enterprises societies and countries to realize the matter and information flows extending over country bounds in the global production chain. The paper further discusses the topics of quality chain management process and the reliability of the database that synergetic manufacturing will be using. Thus it improves the agility and competitiveness of the enterprises sharply.
The Development and Implementation of a New Type Insulation Testing Equipment
Authors: Liu Yi , Bian Qiang , Wang Xiang Jun , Dou Ji
Published: September 2011

All the ships contain different metals, these metals in seawater has a different potential, soak a long time will corrupt slowly, that will affect the ship's life. In order to eliminate corrosion, we need to insulate the different metals, so that there is no corrosion current loop between them. In this paper, we developed a new type of insulation testing equipment to detect insulation for this situation. The equipment, using voltage measurement and resistance measurement for dual diagnosis, determine the degree of insulation. After the successful development of this device, a series of tests was done, get good results.
Discovering Homogenous Service Framework Based on Matching Mechanism and Clustering
Authors: Wang Meng , Li Shu Yu
Published: September 2011

How to efficiently select Web services that can best meet the requirements of consumers is an ongoing research direction in Web service community. However, current discovery systems support either WSDL or OWL-S Web services but not both.Through the automatically collected WSDL files and the OWL-S web service related matching mechanism, the idea of transforming various existing web services on the Internet into a service cluster of similar homogeneous , then we can create a service search engine successfully and at the same time the search space can be reduced. By means of providing a mechanism for matching the characteristics properties of relevant web services, we can put them all together into a group which can be found and applied.
Minimizing the Embedding Impact Using Network Flow Algorithms
Authors: Li Wan Qi , Wang Heng , Nian Che , Wei Huang , You Hong Yao
Published: September 2011

A novel method of minimizing the embedding impact is proposed in this paper. Optimal embedding is achieved using network flow algorithms by considering the modifications on the cover image as flows of pixels among different states. This method is not an independent steganographic scheme, but rather it minimizes the embedding impact after the embedding process and it’s compatible with the majority of embedding techniques. Due to its dependence on the embedding process, many optimization problems, such as the minimization of a globally interactive distortion function, that are intractable during the embedding process can be solved with relatively low computational cost by rectifying the modifications on the cover image after the embedding process. A distortion function based on Kullback-Leibler divergence is provided as a concrete example to illustrate the basic idea of this method.
Aircraft Rotating Blades Radar Echo Model and JEM Feature Extraction
Authors: Liao Huan , Wang Jian Guo , Cao Zong Jie
Published: September 2011

Air defense radar target recognition is a difficult area of ​​target identification, target identification of aircraft has been an important area of ​​national military research. On the basis of jet engine modulation (JEM) effect of air craft, caused of rotating components’ periodic motion, an universal mathematical model of air defense radar propellers modulation echo is established in this paper. According to the characteristic of propellers modulation echo, simulated and compared the effects of propellers structure parameters to rotary blades radar echo signals, and pointed out that diverse types of the plane echo have different characteristics of modulation cycle. Compared the estimation performances of several features analysis and extraction algorithm with the study of prop-airplane echo signal. The simulation results demonstrate that the feature is stable and effective, bispectrum estimation value is more accurate and less errors. It’s feasible to using the feature to identify diverse types (or models) aircrafts.
The ERM-Based Self-Adaptive Agent Model
Authors: Huang Guo Rui , Liu Fei , Cheng Xu , Qiu Chao Fan
Published: September 2011

Inspired by the mechanism of behaviour control of organisms, this paper attempts to build an underlying model of their physical and psychological activities in a dynamic environment with the purpose to achieve the self-adaption of robot behaviour in a complex, changeable environment. It designs an internal environment and emotion- & motive-generating models based upon the endocrine regulation mechanism (ERM). The robot relies upon the dynamic stability of the internal environment to accomplish its self-adaption to the external environment. The emotion-generating model is applied to in vivo and in vitro contingencies of various kinds; by releasing hormones, the emotion generated influences the robot’s in vivo and in vitro perception, and then its behavioural choice. The motive-generating model is employed to maintain the relative stability of the internal environment, and the motive generated leads to the corresponding behavioural choice directly. The experimental results prove the effectiveness of this ERM-based self-adaptive robot model.
A Novel Physically-Based Method for Curve Deformation
Authors: Zhou Xiao Jie , Wang Yan Fang
Published: September 2011

The aim of this paper is to present a novel physically-based method for curve deformation. It is an energy-based method considering stretching energy, bending energy and twisting energy of the curve. By combining the space deformation and energy-based technique, the curve deformation is converted into an optimization with linear constraints. Experimental results illustrate that the presented model is a shape-preserving method, which can produce realistic curve deformation.
Temperature Dependence of Contactless Electroreflance Spectroscopy of C-Plane ZnO Bulk
Authors: Lin I Fan , Chang Chung Fu , Wang Dong Po
Published: September 2011

Contactless electroreflectance（CER）spectra of c-plane ZnO bulk have been measured from 20 to 300 K. Photoreflectance（PR）spectrum of ZnO bulk has also been measured at 300 K. The CER spectrum is red-shifted with respect to the PR spectrum at 300 K. It is known that the average field experienced in the CER is larger than that of the PR. In addition, the features of PR or CER is blue-shifted when the field becomes larger if they belong to band-to-band transitions. Hence, the observed features are excluded from band-to-band transitions and are attributed to excitonic transitions. The CER spectra were then fitted by Lorentzian profiles. The energies of the A（B）, B（A）, and C excitonic transitions at 0K, which were obtained by the best fit of Varshni’s equation, are 3.419, 3.436, and 3.482 eV, respectively.
The Design of a 5 GHz Programmable Frequency Divider for Fractional-N Frequency Synthesizer
Authors: Chen Zhong Shan , Tu Yan , Feng Liang
Published: September 2011

The design of a high speed programmable frequency divider for fractional-N frequency synthesizer is presented. The programmable divider consists of a divide-by-4/5 dual-modulus prescaler, a 5-bit programmable counter, and a 2-bit swallow counter. A new scheme of reload operation is adopted to reduce the propagation delay of the critical path. The triggering signal for the two counters is selected carefully to mitigate the timing requirement of the mode control signal. The divider is designed in 0.18 um CMOS process. Its division ratio (DR) covers the range from 12 to 127. Post-layout simulations show it can work up to 5 GHz under 1.8 V power supply, while consuming only 9 mW and occupying an area of about 0.06 mm2.
Discussion on Power Grid Magnetic Storm Disaster Monitoring System Based on Cloud Computing
Authors: Liu Di , Wang Ying , Liu Lian Guang
Published: September 2011

The power grid storm disaster monitoring system involves power system data，geomagnetic data, satellite data and other earth space observation data. To solve such problems as the system's large quantity of data, storage and processing difficulties, using cloud computing in the system is putting forward. The basic concepts and the services of cloud computing are introduced first. From the aspects of the front-end data collection and communication methods to the background software data processing, the GIC (geomagnetically-induced current) monitoring system is showed. Then the issues of the continuous expansion of the system are analyzed in detail. The architecture of the power grid storm disaster monitoring system based on cloud computing is given. Security problem of implementation of the system using cloud computing technology are finally discussed.
Study on Health Management System Design
Authors: Chen Xiang
Published: September 2011

Health management is the whole process of conducting the comprehensive monitoring, analysis, and evaluation of the health of individuals or groups, providing health consultation and guidance, and intervening in risk factors of health, to mobilize individual and collective initiatives, and to make effective use of limited resources to achieve optimal health results. In this paper, through the study of the development status of health management at home and abroad, in combination with the health management needs of average families, using visual basic6.0 language, it designs and implements a health management system covering three levels of the health information management, health risk assessment and health education; the system can electronically store personal medical information, can analyze medical data and provide report forms, and can evaluate risk factors of people’s health, assess risks of chronic diseases, and assess health quality, and can also provide a fully functional health education, such as daily health care, information of common diseases, and pharmacopoeia information.
Application of Monitoring Technology Based on Aeolian Vibration in Smart Grid
Authors: Ma Gang , Wu Ke He , Pan Pan
Published: September 2011

The aeolian vibration of overhead transmission lines frequently brings about the breaking fatigue of wires, which makes a serious threat to the security of transmission lines.Today, more and more attentions have been paid to the aeolian vibration both in research and commercial realms . As aeolian vibration monitoring can accurately monitor wire damage, it is conducive to timely maintenance and avoiding accidents. In our paper, we propose a system model adopting bending amplitude method to estimate bending amplitude, calculate dynamic bending strain of wire and obtain early warning tips by comparing with strain chart based on the research of principles of aeolian vibration. Besides, A prototype system is developed to realize the effectiveness of the proposed model.
Distributed Computing for Mechanical Virtual Human
Authors: Tang Gang , Mi Wei Jian , Chang Dao Fang , Wang Cheng Tao , Bai Xue Ling
Published: September 2011

To improve the efficiencies in kinematics, dynamics analysis and finite element (FE) calculation, distributed computing is used in the project of Chinese mechanical virtual human (CMVH). A three-dimensional (3D) musculoskeletal model of a male human and its finite element model have been constructed according to the male dataset of Chinese visible human (CVH). Many servers and software have been architected by using the method of distributed computing. Finally, a distributed computing platform by using these models to solving the parameters has been established. This distributed computing platform will provide wide applications in the areas such as medical engineering, robot design, physical and art education, sport, ergonomics and traffic accident analysis etc.
Efficient Image Matching Algorithm Using Distance Transform and Particle Swarm Optimization
Authors: Guo Yong Fang , Kai Huang
Published: September 2011

Correspondence estimation is one of the fundamental challenges in computer vision lying in the core of many problems, from stereo and motion analysis to object recognition. The direct matching method would computer the fitness for every pixel in the resolution space and it would sensitive to illumination change and other change. For the image attained by distance transformation can weaken the bad influence under geometric distortion and edge change, and have the ability to resistant inversion. The PSO algorithm supports parallel search of multiple points that are changed along a smooth trajectory within the search space. The paper applied distance transformation and PSO to image matching and the experiment results showed that comparing with the traditional direct matching, the method of the paper is not sensitive to illumination change and drastically reduced the required computation time.
Fast and Accurate Video Retrieval of a DVR Special-Purpose File System
Authors: Liang Ai Hua , Liu Huan Mao
Published: September 2011

Based on the characteristics of video storage, this paper analyzes the shortages of existing file system in video application. Then a DVR (Digital Video Recorder) special-purpose file system is proposed. In this special file system efficient video storage and retrieval can be achieved. Video pictures of specified time can be positioned quickly and accurately.
Experimental Study on Mechanical Properties of Sole Materials of Aerobics Sports Shoes
Authors: Qiu Qin Er , Hu Qiu Li , Gu Yao Dong
Published: September 2011

The purpose of this study was to understand damping and anti-slip properties of the Reebok and the Huakang shoes, evaluate the mechanical effect of those aerobics sports shoes as well. From the biomechanical test, almost all mean pressure, average impulse and average pressure of the Reebok and the Huakang was less than the bare foot condition on "shoes - ground", but the average pressure, average impulse and average pressure of the Reebok shoes was slightly higher than the Huakang shoes. Meanwhile, the damping mechanics indexes do not exist significant differences (P＞0.05). It’s friction coefficient tests show that dynamic or static friction coefficient of the Reebok is superior than the Huakang, and dynamic or static friction coefficient does exist significant differences (P＜0.05).
A Real-Time Flash Memory Storage System in Embedded Environment
Authors: Lin Wei , Zhang Yan Yuan , Li Zhan Huai
Published: September 2011

Recently, flash memory is becoming a popular data storage device in most of the electronic consumer devices. It has lots of attractive features such as small size and light weight nature, zero noise, solid-state reliability, low power consumption, and better shock resistant. To make it suitable for real-time embedded applications, this paper presents the design of an object based file system that uses parallel operations to guarantee bounded read-write access latencies to real-time tasks, in the presence of requests from non real-time tasks. The proposed scheme requires minimal support from the underlying operating system.
Development of a Pattern Recognition System Based on Image Processing Implemented on a Safety Critical Embedded System for Accident Prevention
Authors: Seshadri Aadil , Gupta Abhinav , Kamdar Nishad , Gunjal Varad
Published: September 2011

Irresponsible driving is one of the leading causes of mishaps & deaths in the world today. The present work aims at developing a preventive solution to this problem in the form of a driving aid for drunk drivers or people who are not in a fit state to drive. The said system proposes to enhance certain existing frameworks using image processing. Haar-wavelet classifiers & Speeded Up Robust Features (SURF) algorithm are used to analyze images of the drivers' eyes & patterns of movement to judge if they are eligible to drive. These complement the existing sensors, like the odor sensor, and help the system reach a confident decision. We plan to take this system further by creating collaborative MANETs among vehicles for preventing potential harm to other drivers as well.
Power Factor Correction in Harmonic Environment
Authors: Chao Yang
Published: September 2011

Harmonics reduces the power factor of power supply system, and thereby reduces the power utilization factor of the power supply system. This paper introduces calculating and correcting of power factor in harmonic environment, and the methods of restraining harmonics.
Quasi-Static Energy Absorption of Pultruded Composite Tubes E-Glass/Polyester under Oblique Loading with Different Cross-Section
Authors: Arifin Abdullah Atiq , Sulong Abu Bakar
Published: September 2011

The capable of structures to absorb large amount energy are great interest in an effort to reduce the impact of collision. In this research, an experimental investigation was carried out to study the crashworthiness parameter and behavior of pultruded fiber E-glass/polyester composite tubes subjected to oblique load during progressive collapses. Two different pultruded wall thicknesses of 6 mm and 9 mm tubes were used and four load angles of 0˚, 5˚, 10˚ and 15˚ were selected to study their effect on crushing behaviors and collapse modes. All specimens were chamfer 45˚ on top end as purpose to work as a collapse trigger mechanism. The result showed that increasing the angle of loading will decrease the energy absorption of the structures. Pultruded tubes with 9 mm thick wall absorb more energy compare to 6 mm thick walls.
Design of Equivalent Device Based on Ethernet Communication
Authors: Zhang Hui Xin , Zheng Yan Lu , Chen Yan Ran , Yang Hai Guang
Published: September 2011

To match, test, and determine the working conditions and correctness of each function of the aircraft measurement system. This article proposes a design of equivalent test platform which can produce digital and analog signals for the self-testing of measurement system. By using the ethernet protocol chip W5300 to achieve the high-speed communication between host computer and equivalent device. Communication uses UDP unicast data transfer mode with advantages of high-speed and long-distance transmission, and the Phenomenon of data packet loss is not easy in transmission.
Optimal Design of a Cantilever-Based Sensor for Measuring Micro-Forces
Authors: Rong Wei Bin , Huang Gui Ming , Wang Le Feng , Sun Li Ning
Published: September 2011

In order to achieve the requirement of measuring forces during micromanipulation, a cantilever-based sensor using optical laser and position sensitive device (PSD) to monitor cantilever deflection is designed. To increase the resolution of the sensor at the specified measurement range, mechanical analysis and noise analysis are adopted to optimize parameters of the cantilever-based sensor. The experiment results show that the cantilever-based sensor can achieve the measurement range of 20mN and the resolution of 6.74μN.
3D Animation Applications in Highway Design
Authors: Chen Su Hua , Hu Jun Peng , Ding Jian Ming
Published: September 2011

Traditionally, highway engineers use pencil and ruler to lay out lines and curves over contour maps for highway geometry design. Numerous calculations of stopping sight distance, minimum turning radius, and curve alignments are required during the design process to ensure safety, to minimize economic and environmental impact, and to reduce construction costs. Engineers usually perform iterative computations manually during the design process to meet design criteria and environmental constraints. The traditional process of highway geometry design is cumbersome and time consuming. The traditional approach limits engineers from taking a broader perspective in the overall highway geometry design process. Current method of three dimensional (3D) has nothing to do with highway design process. CARD/1 was developed to enhance the learning experience for highway engineers. This tool allows engineers to design the highway efficiently and to modify the design easily. A 3D highway geometry model can be generated by the software at final design to allow engineers to place themselves in the driver’s seat and maneuver through the designed highway at maximum design speed. Some key technologies of highway design with 3D-animaion based on CARD/1 was discussed in this paper.
Gear Chamfering Profile Measurement System Based on Laser Sensor and Machine Vision
Authors: Xu Zeng Pu , Zhang Shuo
Published: September 2011

This paper introduces a method of measuring the gear chamfering profile based on laser sensor and machine vision through two grades. After machine vision part uses a vision sensor to get the location information of gear teeth at first. Then the laser sensor is moved to the position of gear teeth and takes the measurement of gear chamfering profile precisely.
Characteristics of Enzymatic Hydrolysis of the Wheat Gluten Proteins Treated by Ultrasound Wave
Authors: Jin Hua Li , Wang Jin Shui , Bian Ke
Published: September 2011

Effects of sonication at 150W and 300W power output on hydrolysis of wheat gluten using two proteinases (Protamex and papain) were evaluated in the present study. Sonication resulted in the increase in amounts of free sulphydryl (SH) of wheat gluten. Significant (P < 0.05) increase in SH contents at 300W power output was found compared with the control and those samples sonicated at 150W power output. Degree of hydrolysis (DH) and protein recovery (PR) of the wheat gluten hydrolysates increased with sonication time and power output. Significant (P < 0.05) increase in DH and PR of the wheat gluten hydrolysate from the sample sonicated by 300W power output was found compared to those sonicated by 150W output. Sonication caused the decrease in the relative percent of the large peptide fractions and increase in the relative percent of the small peptide fractions in the hydrolysates compared to the control. Structure change in insoluble wheat gluten proteins was the principal reason of improvement in their characteristics of enzymatic hydrolysis.
The Research on the Improvement of Flour Fermented Products by Benzoyl Peroxide
Authors: Guo Yan Yan , Lin Min Gang , Li Hua , Liang Hong Bo , Liu Bo Xiang , Liu Zhong Dong
Published: September 2011

This paper studied improved properties for fermented products by Benzoyl peroxide. The proofing speed and whiteness is as the index, this paper studied the use effect by adding different concentration and temperature of BPO, and discussed the influence on rheological properties. Research shows:the BPO optimal adding quantities are 40mg /kg for the improvement of fermented products.It can not only improve the proofing speed and food quality of fermented products, but also be able to improve flour color. While, if the adding amount of BPO is too large, the proofing speed and whiteness of fermented products would decline.
Proteomics Study on Cross-Linking Reaction of Formaldehyde and HSA
Authors: Li Bo , Hu Ding Yu , Xin Xiu Lan , Lan Rong , Deng Yu Lin
Published: September 2011

Possible clinical diagnosis biomarkers of diabetes were proposed using proteomics and bioinformatics methods through the preliminary study on the formaldehyde-human serum albumin crosslinkage. Using LC/MS techniques, the experiment on in vivo cross-linking reaction of formaldehyde with pure protein or plasma protein revealed that the cross-linking reaction of human serum albumin and forrmaldehyde would occur and the concentrations of some normal peptides would change. A group of significant peptides of human serum albumin were selected. As the results of in vivo cross-linking reaction, Non-enzymatic glycosylation modification of HSA were observed in diabetic. The same change of the concentrations of some peptides happened. The above-mentioned results were demonstrated with the hematoplasmas of normal people and diabetics.
Preparation of Insulin-Like Growth Factor-1 from Bovine Colostrums
Authors: Mo Ji Xian , Zhang Bo Hui , Gao Xue Jun
Published: September 2011

This experiment achieved a purpose that bovine colostrums IGF-1 were extracted from bovine colostrums rapidly and efficiently. Fresh bovine colostrums were heated at 40 °C for 1h and centrifuged at 2500 rpm for 20min, then they were discarded the upper fat and adjusted the pH value of skim milk at 4.2 to remove casein, the salting saturation was 35% to remove high molecular proteins. We extracted IGF-1 concentrated liquid by the ultra filtration which were 50ku and 3ku molecular weight, and the IGF-1 concentrated liquid were purified further by chromatography which was filled up weak cation exchanger (CM-SephadexC-25), the equilibrium buffer was NaCl solution （0.02 mol / L buffer, pH 7.25, the flow rate was 80cm / h）. Finally we used the HPLC and the ELISA to determine the purity and the yield of the IGF-1 concentrated liquid. The results were that the yield of the bovine colostrums IGF-1 was 71.98%, and the purity was 65.51%.
Charge Compensation and Enhanced Photoluminescence of Sr2SiO4:Eu3+, Li+ Phosphor
Authors: Chen Huang Yu , Chang Shoou Jinn , Weng Min Hang , Yang Ru Yuan
Published: September 2011

A Eu3+activated strontium silicate phosphor was synthesized by solid-state reaction and Li+ion was added to balance the charge valence. X-ray powder diffraction analysis confirmed the formation of pure Sr2SiO4phase without second phase or phases of starting materials irrespective of the adding amount of Li+. Scanning electron microscopy showed large particle size and necking shape were obtained as the concentrations of Li+ions increase. In the PL studies, the excitation spectrum of Sr2SiO4:Eu3+,Li+phosphors exhibited a broad band in the UV region centered at about 270 nm attributed to charge transfer state (CTS) band. As the Li+ion concentration increased, the photoluminescence intensity of the red emission at 617 nm of Eu3+ions was enhanced. The results showed that Li+ion is a effective charge compensators used in Sr2SiO4:Eu3+phosphor.
The Effect of Bovine Colostrums IGF-I on Cultured Human Mammary Epithelial Cells Line HBL-100
Authors: Mo Ji Xian , Zhang Bo Hui , Gao Xue Jun
Published: September 2011

This experimental studied the effect of the bovine colostrums IGF-I on the cultured human mammary epithelial cells line HBL-100. We selected the best optimal concentration of the bovine colostrums IGF-I on the HBL-100 and researched the cell growth curve, cell population doubling time and cell growth saturation density. Using HPLC to determine lactose content in order to reflect bovine colostrums IGF-I which would influence on the ability of lactation of cultured human mammary epithelial cells line HBL-100. The optimal IGF- I concentration was 200ng/ml, the minimum time of cell population doubling time was 13.8h, cell growth saturation density reached 8.602×105/ml; High concentrations of IGF-Ⅰhad inhibit trend to the HBL-100 cells; bovine colostrums IGF-I could promote the synthesis of the lactose of the HBL-100 significantly.
Investigation of Active Components and Antioxidant Activities in Peel and Pulp Extracts of Citrus Reticulata Blanco cv. Suavissima Fruit
Authors: Chen Xiang Tao , Jiang Dong Qing , Chen Fang Fang , Yuan Ke
Published: September 2011

Citrus. reticulata Blanco cv. Suavissima friut has long been regarded as a food and medicinal plant. We investigated the antioxidant activity of the ethanol extract of peel and pulp part of fruit growned in Zhejiang Province, PR. China by several in-vitro systems of assay, namely DPPH radical-scavenging activity, ABTS.+ radical-scavenging activity, ferric reducing antioxidant power (FRAP) assay. Total phenolic content was measured by Folin-Ciocalteu reagent. The total flavonoids contents were measured using a modified colorimetric method.The extracts of different samples were found to have different levels of antioxidant activity in the systems tested. Ethanol extracts of the fruit showed stronger antioxidant activities compared with those of the commercial compound (Trolox). The results suggest that Citrus. reticulata Blanco cv. Suavissima friut can be a good source of natural antioxidant.
Synthesis of Polyaniline/Poly(Vinyl Alcohol) Intercalated Graphite Oxide Composites
Authors: Hu Fan , Xu Zu Xun , Dong Bing Hai , Wan Li , Zhang Xiu Hua , Dai Guo Tian , Zhou Wen , Wang Shi Min
Published: September 2011

The Polyaniline-poly(vinyl alcohol)-intercalated graphite oxide (GO) composites were synthesized through in-situ polymerization methods. The characterizations were illuminated by using X-ray diffraction (XRD), scanning electron microscopy (SEM), cyclic voltammetry(CV) and thermal analysis(TGA), respectively. TGA shows that composites have stable thermal properties. CV curves show charge-transport processes within the film are diffusion-controlled. The new composites reveal the potential application in the future.
Effects of Berberine on the Photosynthetic Pigments Compositions and Ultrastructure of Cyanobacterium Microcystis Aeruginosa
Authors: Bi Xiang Dong , Zhang Shu Lin , Zhang Bo , Dai Wei , Xing Ke Zhing
Published: September 2011

Berberine, as an allelochemical extracted from golden thread (Coptis chinensis), inhibits the growth of Microcystis aeruginosa significantly. To assess berberine-induced damage on the algal photosynthetic apparatus, the effects of berberine on the algal photosynthetic pigments compositions and ultrastructure were investigated. The results showed that the relative chlorophyll a content of M. aeruginosa decreased with the increasing concentrations of berberine and the prolongation of exposure time. The relative contents of phycocyanin, allophycocyanin and phycoerythrin of M. aeruginosa transitioned from a decrease to an increase in the early phase of the experiment, and then decreased sharply to the end at low concentrations. However, when berberine concentration raised to 20.0 mg·L-1, all the relative phycobilins contents of M. aeruginosa had been decreasing with the prolongation of exposure time. Of the three phycobilins of M. aeruginosa, phycocyanin was affected most severely by berberine. TEM photographs showed that the ultrastructures of the multiple-layered cell wall, cell membrane and thylakoid lamella of M. aeruginosa were destroyed severely under the stress of berberine with the occurrence of cyanophycin granules. It was concluded that decreases in the photosynthetic pigments and destruction of the algal cells ultrastructures might be involved in berberine-caused antialgal mechanism.
Numerical Simulation of Natural and Super-Critical Carbonation on Concrete Porous Brick
Authors: Zha Xiao Xiong , Cheng Shan Shan
Published: September 2011

Based on the partial differential equations on the carbonation of porous materials, this paper develops the natural and super-critical carbonation model by the multi-physics field coupling software to simulate and predict the relation between carbonation degree and the period of carbonation. It is shown that the carbonation degree after 1 day under super-critical condition is equivalent to that after 1 year under natural condition. The bidirectional carbonation makes the concrete porous brick carbonated faster than the concrete block, thus it is suitable for commercial production.
The Mechanical Strength of Rabbit Femurs Fixed with Calcium Phosphate Cement after Fracture
Authors: Chen Jing , Li Xiao Na , Tan Shi En , Chen Wei Yi
Published: September 2011

In this study, we invesgated the mechanical properties of the rabbit femurs fixed with calcium phosphate cement (CPC). Twenty adult rabbits were randomly divided into the control group and the group treated with femur fracture artifically, then fixed with CPC. Two weeks after surgery, all rabbits were sacrificed, and femurs were removed for the three point bending test to examine the changes of mechanical parameters of the femurs. Our results showed that although the maximum tension stress of the femurs in the treatment group was smaller than the control, its crosss-sectional area became bigger, which improved the ablity of the femur to bear more loading with the maximum pressure and absorbed energy during destroy up to 83.5% and 64.3% of normal bone material strength. It indicated that it was practicable to fix the fractured femur with CPC from the biomechanical view piont.
Effect of Laminarin on Aspergillus Flavus Growth and Aflatoxin Production
Authors: Hu Liang Bin , Li Hong Bo , Sun Jun Liang , Zeng Jie
Published: September 2011

Control of aflatoxin contamination has been a worldwide problem. Laminarin from Laminaria digitata is one kind of polysaccharides with multiple biological activities. In this paper, the inhibitory effects of Laminarin on the growth and toxin production of A. flavus was studied. The results indicated that 150 and 200 µg/mL of Laminarin ccould significantly inhibit the aflatoxin production in Sabouraud liquid medium (Sab), without affecting mycelium growth. In addition, the results also showed that certain concentration Laminaria could decrease the infection of peanut seeds by A. flavus as well as the contamination by aflatoxin B1.
The Enhanced Cu2+- Stress Resistance of Microcystis Aeruginosa Induced by Exogenous Abscisic Acid
Authors: Li Shui Bing , Lv Jun , Xue Hong Fen , Xu Zhong Xiu , Wei Jin Ya , Guo Li Hong , Yang Ming Zhi , Chen Xiao Lan
Published: September 2011

Previous studies showed that abscisic acid (ABA) play a role in oxidative and osmotic stress response of cyanobacteria cells. Whether it has function in metal stress response remains unclear. The effect of exogenous Abscisic Acid on Cu2+-Stress resistance of bloom-forming cyanobacteria Microcystis aeruginosa was studied in this paper. The results showed that 20 mg. l-1 exogenous ABA can effectively enhance the resistance ability of Microcystis aeruginosa cells to Cu2+-stress at the concentration of 0.25 mg.l-1. Exogenous ABA can restore the growth inhibition by elevating chlorophyll a, phycocyanin and allophycocyanin protein content in Cu2+-stressed cells. ABA helps absorbing more metal ions to decrease its toxicity by inducing solvable protein and cellular polysaccharides biosynthesis. By promoting the Superoxide Dismutase and Glutathione Peroxidase activities, exogenous ABA can effectively help scavenge the excess superoxide radicals in the cells caused by Cu2+-Stress. These results indicated that ABA might also play important role in metal-stress response and resistance.
Preparation and Characterization of Novel Methyl Acrylate
Authors: Guo Yong En , Cao Jing , Zhou Cai Ju , Wen Shao Peng , Zhang Ya Mei , Fang Guo Zhen
Published: September 2011

Salvianolic acid B has many important pharmacological activities. A novel synthetic route of methyl acrylate derivative—an important intermediate to synthesize salvianolic acid B, was designed, and the target compound was prepared in seven steps of reactions with 2-bromo-3-hydroxy-4-methoxybenzaldehyde as major starting material. Its and other four important unreported intermediates’ structures were characterized by IR, 1H NMR, MS, etc.