bluuebunny/crossref_metadata_2025 huggingface dataset:
Research on Anti-Coxsackievirus B Activity of Konjac Oligo-Glucomannan Sulfate in Hela Cell Line
Authors: Huang Hao , Yang Zhong Hua , Chen Jun
Published: March 2013

Glucomannan extracted from konjac was sulfated (konjac oligo-glucomannan sulfate, OGMS) to show selective anti- coxsackievirus B activity in vitro using Hela cell line as the host cell of coxsackievirus B. OGMS straight inhibited the virus according to different groups and CVB-RNA Replication in Hela cell by RT-PCR. The studies indicated that OGMS mainly acted as blocking virus invading function and its IC50 was 0.1483 mg/mL determined by Reed-Muench method and CVB-RNA Replication was inhibited as well. All these indicated that OGMS had evident in vitro anti- coxsackievirus B activity.
Preparating Arsenic Trioxide with Sulfuric Acid Wet Oxidation
Authors: Ma Lin Zhuan , Guo Jun Ming , Cui Qiong Fang , Liu Man Hong , Zhang Ying Jie
Published: March 2013

The technology of the acidification is adopted to prepare arsenic trioxide (As2O3). With a concentration of 98% of concentrated sulfuric acid and Orpiment made into a certain ratio of the slurry suspension. Arsenic trioxide’s content is 99.94%, extraction yield can reach to 98.92%. The optimal conditions is reaction temperature at 120°Cand the reaction time in 2.5 h; the slurry ratio is less than 1/6 and particle size is less than 0.080 mm.
Highly Transparent and Low Resistivity Al-Doped ZnO Thin Films Grown by Pulsed Laser Deposition under Different Oxygen Flow Rates
Authors: Kim Kyoo Ho , Lee Eun Soo , Lee Seong Heon
Published: March 2013

Polycrystalline Al-doped ZnO (AZO) thin films with a thickness of 1300 Å were grown on Corning 1737 glass by pulsed laser deposition (PLD) at a low substrate temperature. The presence of oxygen gas during deposition led to a remarkable enhancement of the (002) c-axis preferential orientation as well as increased crystallite size. Highly transparent films with a transmittance of 85% could be obtained by controlling the oxygen flow rate, while causing a Burstein-Moss shift toward a shorter wavelength as well. The resistivities of the films were found to be functions of both the oxygen flow rate and substrate temperature, with the lowest value being 2.3 x 10-4 Ωcm (18Ω/sq sheet resistance). It was found that both the oxygen flow rate and substrate temperature are crucial in order to grow superior device quality films with an appropriate degree of crystallinity, less surface roughness, high transmittance and low resistivity, which are characteristics of great technological importance.
Metastable Phase Equilibrium of a Ternary System of K+,Mg2+/B4O72--—H2O at 25°C
Authors: Ma Xiao Hua , Bai Sun , Wu Li , Jin Zhi Liang
Published: March 2013

The isothermal solubility of the ternary system K+,Mg2+/B4O72-—H2O at 25°C has been studied and the phase diagram is determined. The results show that the system is of the simple eutonic type and can be in metastable equilibrium state within 8—16 hours. The phase diagram consists of two solubility branches corresponding to the crystallization areas of K2B4O7•4H2O and MgB4O7•9H2O. The composition of the eutonic point is MgB4O7,0.5279%(Wt%) and K2B4O7,13.9629%(Wt%) respectively. The replicate experiments proved that the phase transformation of hungtsaoite (MgB4O7•9H2O) occurs after a 20 hours epuilibrium.
Perchlorate Removal Using the Calcination Products of Mg-Al-Fe Hydrotalcite-Like Compounds as Adsorbent
Authors: Niu Ling Ling , He Fang , Zhao Shang Zhen
Published: March 2013

The calcination products of Mg/(Al-Fe) hydrotalcite-like compounds (HMAF) were used as adsorbent to remove perchlorate in affected water. HMAF were synthesized by co-precipitation method at a constant pH value, the best calcined temperature is 500°C and the optimal Mg/Al/Fe molar ratio is 3:0.8:0.2 (CHMAF5%). Factors such as adsorbent dose, initial pH, initial perchlorate concentration affecting perchlorate adsorption were studied. Results showed that the best parameters of adsorbent dose, pH and perchlorate concentration are 0.2g, pH 4-10 and 2000µg/l, respectively. The calcination products of HMAF can be a promising adsorbent for perchlorate removal.
Development of Soft Magnetic Materials Prepared by Metal Injection Molding
Authors: Shang Feng , Qiao Bin , He Yi Qiang
Published: March 2013

Several kinds of soft magnetic materials prepared by metal injection molding (MIM), including pure iron, soft magnetic stainless steel, Fe-Si alloy, Fe-Co alloy, Fe-Ni alloy are introduced. The advantages of soft magnetic materials prepared by MIM are exhibited, the research status and development of soft magnetic materials prepared by MIM are reviewed.
Scalable Generation of Three-Atom W States via Atom-Microtoroidal Cavity Coupling System
Authors: Huang Yan Tang , Wang Xiao Hua , Bao Ri Yan
Published: March 2013

We propose a scheme for the generation of three atom W states via the microtoroidal cavity-atom coupling system. This scheme can also be generalized to multi-atom W states. In this paper, three-atom resonant interact simultaneously with two counterpropagating cavity modes which can be produced by embedding Bragg grating in the microtoroidal. A single resonant interaction is required, thus this scheme is simple. Moreover, the required time to complete the whole process almost unchanges with increasing the number of atoms
The Research and Design of Miniature Wheat Threshing Machine Based on Direct-Current Motor
Authors: Wei Zeng Ju , Yang Tian Ming
Published: March 2013

Embarking on the need of agriculture yield estimation and yield capacity, and the need of wheat threshing in agricultural colleges and research institutes, this text gives the design of miniature Direct-Current (DC) electric threshing machine using storage battery as power source based on the characteristics of the DC which is easy for storage. At the same time , the threshing machine is driven by a DC motor, considering the field threshing of the yield capacity and the yield estimation and the reality needs of small sample nicety threshing. The device has the advantages of light weight, small volume, simple operation, easy maintenance, convenient carrying.
Flow Field Simulation of the Oil-Burned Pressure Boiler Burner
Authors: Song Yin Dong , Wu Chun Ping , Li Yong Wang , Yao Shou Guang , Zhao Jin Ku
Published: March 2013

The flow process of tangential vane burner of pressure oil-burned boiler was numerically simulated with realizable k-ε model. Burner flow field boundary, air axial velocity and air tangential velocity were measured. The measure was done under cool condition, at 28% load and 0.1MPa, the simulation was done under the same conditions. The calculation had a good agreement with the experiment. Flow field was calculated under cool condition, when pressure was respective 0.1MPa, 0.2MPa, 0.3MPa, 0.4MPa. Recirculation zone length and maximum diameter both decreases with pressure increase. Axial velocity decreases with pressure increase. Flow field was calculated under heat condition, recirculation zone length of heat condition is 2.67 times longer than under cool condition; recirculation zone maximum diameter is 2.53 times longer than under cool condition; recirculation zone position is ahead 200mm than under cool condition.
Design and Aerodynamic Characteristics Study of a Spherical Aircraft
Authors: Li Peng , Zhang Yan Heng , Sun Han Xu , Pan Hao
Published: March 2013

In order to achieve the goals of small aircraft’s taking off and landing in any posture and the protection of propeller, a new single-propeller spherical aircraft structure was proposed, which had the capacity of flying in the air and walking on the ground simultaneously. An aerodynamic model of the aircraft was built. The aerodynamic characteristics of the spherical aircraft, including the lift and the anti-torque and the generated torque of the flow deflectors under the propeller’s down airflow, are studied in depth by means of CFD numerical simulation method. A reasonable design and installation program is proposed according to the research results.
Numerical Prediction of Sediment Erosion on Francis Turbine Blades
Authors: Zhang Hong Ming , Zhang Li Xiang
Published: March 2013

The paper presents the numerical prediction of sediment erosion on Francis turbine blades using CFD code. The 3-D turbulent particulate-liquid two-phase flow equations are employed in this study. The computing domain is discretized with a full three-dimensional mesh system of unstructured tetrahedral shapes. The finite volume method is used to solve the governing equations and the pressure-velocity coupling is handled via a Pressure Implicit with Splitting of Operators (PISO) procedure. Simulation results have shown that the sand erosion rate on pressure side is more than on the suction side of the blade. The numerical simulation results are consistent with the real situation.
Design of a Novel Blood Cell Analysis System Based on Capillary Centrifugation and Stratification Technology
Authors: Duan Hao , Chen Feng , Gu Biao , Li Chao , Cui Xiu Mei , Du Yao Hua , Cheng Zhi , Qiao Long Xue , Li Chen Yu , Gao Ying , Wu Tai Hu
Published: March 2013

The test of complete blood cells plays a significant role in diagnosis and treatment of diseases. In order to take an immediate quantitatively measurement of red blood cells, platelets, lymphocytes, monocytes and granulocytes, as well as to realize the binary classification of white blood cells, we design a novel blood cell analysis system based on capillary centrifugation and stratification technology. Blue and red LED array are adopted as light sources, and one-dimensional images of the capillary can be got from the color linear CCD. By further analysis can we obtain the final nine parameters. In the paper, we mainly focus on description of the system’s working principle and the general design. Experimental results show that our system is of high accuracy and good repeatability.
Acoustic and Vibration Characteristics of Stiffened Finite Cylindrical Shells in Water under Multiple Axial-Excitations
Authors: Zhou Qi Zheng , Wang De Shi , Gao Sheng Yao
Published: March 2013

A research on the vibration and acoustic radiation of stiffened finite cylindrical shells in water under a multiple axial-excitations driven was presented. The vibro-acoustic coupling equations of shell under multiple axial-excitations based on Flügge thin shell theory were established. The displacements, surface acoustic pressure and stiffener impedances were expressed in terms of the numbers of normal modals and modes, and considering multiple excitations, the forces were expressed in terms of the numbers of normal modals and modes. Then analytical solution was derived for the vibration and sound radiation from the stiffened shell under multiple excitations. Based on the analytical solution, the influences of excitations’ positions to the vibration and acoustic radiation were investigated. The results show that for double excitations, at high frequencies, the distance between excitations was more large, the average velocity was more low. The results could be used to control the underwater vehicle’s vibration and acoustic radiation.
A Design of Turbidimetry Based Rapid Microbiology Detector
Authors: Qu Shun , Yu Xiang , Liu Xing Ju , Yu Peng Fei
Published: March 2013

Microorganism endangers human health and safety. Traditional microbiology detector has problems of long detection period, indistinct judgment standard, and etc. A turbidimetry based rapid microbiology detector is designed in this paper. The detector is mainly composed of drawer typed chest with slide rail of wheel train, auto in-and-out device of centric slider-crank mechanism, and ultraviolet disinfection device. Such design is recommended for microbial detection where time, operation convenience and reliability of analytical techniques are of importance.
Research on Channel Impedance Parameters Dynamic Change Model of XCTD Profiler
Authors: Zheng Yu , Li Hong Zhi , Liang Jie , Zhao Xuan , Li Jing
Published: March 2013

In order to analyze low signal-to-noise rate (SNR) of data transmission while XCTD (Expendable Conductivity, Temperature, and Depth) probe drops at several kilometers underwater, a channel impedance parameters dynamic change model is established. The analysis showed that the greater distributed capacitance between parallel wires having the greater impact on SNR in deep-water channel, improvement of wire structure and material and reduce the distributed capacitance can improve the signal to noise ratio and transmission rate significantly, and that is providing a new way to solve the problem for XCTD signal transmission.
Process-Monitor’s Multimodal Optimization with Dynamic Cloning Based Immune Network Algorithm
Authors: Zhu Yu Guang , Shi Xu Hua , Yang Xiong , Shen Li Xiang
Published: March 2013

A novel process-monitor multimodal optimization algorithm, called Pmdcopt-aiNet is given. It is based on biological immune network mechanism for process-monitor global-numerical optimization. The Pmdcopt-aiNet models can clone the process-monitor operation using dynamic cloning operation which is adopted from biological immune network mechanism. The experiments based on the multimodal benchmarks were carried out to compare the performance of Pmdcopt-aiNet with that of other existing algorithms. The experimental results in process monitoring show that the new algorithm is capable of improving search performance significantly in successful rate and convergence speed when compared with the already existing method.
Research on Residual Current Protective Device Based on Micro-Controller of MSP430
Authors: Liu Jian Feng , Sun Yong Guo
Published: March 2013

A residual current protector based on high performance micro-controller MSP430 is introduced. The micro-controller MSP430F149 is used as the main controller in the device, which can detect the real-time residual current value. And the residual current operating value can be switched automatically according to the present condition of the power system. When the protection is occurred, the residual current protective device has the inverse time lag function, ideal time delay and the automatic reclosing function. So the residual current protective device can be used at all kinds of complicated rural grid and climatic condition, and the safety and the reliability of the power supply can be ensured.
Some Noteworthy Aspects in Designing High-Speed PCB
Authors: Hong Jiang , Tang Zhi Wei , Chen Long Hu
Published: March 2013

With the increase of integrated circuit switch rate and PCB density, signal integrity has become one of the problems must be concerned in high-speed PCB design. How to fully consider EMC (Electromagnetic compatibility) and take effective measures has been a key factor of a system design. Based on the consideration of EMC, the author put forward some aspects in designing high-speed PCB. The optimized PCB design rules have steady and credible performance, the development period is shortened and the cost is reduced. The conclusions drawn from the dissertation are helpful to the design of high-speed PCB.
Design of Adder Based on Abacus Algorithm
Authors: Chen Tao , Wang Yue , Zhang Gang
Published: March 2013

Abstract. Currently the hardware design of adder and multiplier is quite mature, the principle of which is to map addition or multiplication operations into a series of logic computations. While the various optimization approaches have reached their limits, and hardware divider cannot be achieved still. The ancient Chinese abacus operates based on pithy formula, fulfilling kinds of computations including division fast and accurately. Yet the essence of it is not fully exploited. In this study, the hardware adder in view of the principle of abacus algorithm and operation prototype has been designed, verified on FPGA and superior to existing adders that are fully optimized. This offers broad research space to further optimize hardware multiplier or even achieve hardware divider.
Ceramic Tile Color Difference Classification System Based on Color Histogram
Authors: Tang Xuri , Jiang Mai , Wang Yu Ping , Pi Zhi Gang
Published: March 2013

According to the ceramic tile color difference classification detection problem, this paper presents a method for color difference based on Histogram statistical values. First, the color image in RGB color space is converted to HSI color space, median filter was selected for image preprocessing. Then, the ceramic samples HSI Histogram statistical of each channel was calculated respectively. Take the Histogram statistical as the color difference classification character value. For real timerequirement, using minimum distance classifier as classification basis. Compared with the S, I channel, the results showed that adopted the H channel Histogram statistical value as feature vector has higher accuracy for ceramic tile color difference classification.
Research and Design of Vehicle Dynamic Safety Warning System
Authors: Cui Hong Wei
Published: March 2013

Vehicle dynamic safety warning system based on data fusion is researched and designed in this paper. Dynamic information of vehicle, road and environment can be collected in real time. By analyzing and processing these data, active safety warning information is achieved for individual vehicle on different work condition. Safety parameters of vehicle and road condition are detected. Warning information is transferred by wireless network in real time. Research work in this paper is applied to road traffic control area. This vehicle warning system is of value to removing incipient fault of running vehicle, improving reliability, rational maintaining and proper inspection.
Efficient Phase Unwrapping Algorithm Based on Fringe Projection Applying Reliability-Guided Technique
Authors: Li Wen Guo , Duan Shao Jun
Published: March 2013

We present a new method to define the reliability of pixel and path of phase unwrapping. The reliability function is calculated based on modulation, second difference of wrapped phase, and second differnce of modulation, and then we present the concept of smoothness of path, the reliability of path is calculated based on reliability of pixel and smoothness of path. Experiment results validate the correctness of our proposed algorithm.
Research on Engineering Quality Connotation and Cultivation
Authors: Geng De Xu , Zhang Zhi Yi , Liu Xiao Min
Published: March 2013

Aiming at the subsistent problems in engineering, we have advanced the point of promoting and enhancing the engineering quality of public gradually from improving the engineering quality of college students. In this article, we mainly study the basic connotations and characteristics of engineering quality, the various requirements to college students of different disciplines, as well as the ways to cultivate the talents. Meanwhile, we think that both the scientific spirit and humanistic spirit are the souls of engineering quality, and the combination of both is the effective way to improve the engineering quality.
Finite Element Simulation of Precision Cutting Monocrystalline Silicon
Authors: Shi Li Qiu , Li Xiao Wen , Yu Feng
Published: March 2013

Monocrystalline silicon is typical of hard brittle materials, a high surface quality can be obtained in ductile-regime cutting. The success of the turning process depends on optimizing the machining parameters such as the tool edge radius, tool rake angles, depth of cut and cutting speed, etc. In this study, based on the ductile–brittle transition mechanism, the optimization of cutting parameters were determined with the commercial, general purpose FEA software Msc.Marc. The result demonstrates that the value of temperature is minimum when the tool rake angle is in the range of -15º～-30º. Smaller tool edge radius was selected while maintaining quality of tool edge radius and tool life. As long as beyond the range of cutting speed 6 ~ 8 mm/s, smaller residual stress can be obtain.
Simulation of the Soft Magnetic Yoke for Micro Electromagnetic Vibration Energy Harvester Based on MEMS Technology
Authors: Zhang Qi , Dai Xu Han , Ding Gui Fu , Zhao Xiao Lin
Published: March 2013

In this paper, we focus on the efficiency of energy converting of the electromagnetic vibration energy harvester. We add a soft magnetic yoke structure so that the induced voltage is increased by 81% and the efficiency by 65%. The simulation results in Ansoft Maxwell verify our design.
Insulation Type Effect on the Direct Shear Behavior of Concrete Sandwich Panel (CSP) with Non-Shear Connectors
Authors: Oh Tae Sik , Jang Seok Joon , Lee Kang Min , Yun Hyun Do
Published: March 2013

Precast concrete sandwich panels (PCSP) are often used as exterior cladding of residential buildings due to thermal efficiency. PCSP systems consist of two precast reinforced concrete walls separated by a layer of insulation and connected with connectors which penetrate the insulation layer and are anchored at two precast walls. This paper provides the pull-out test results of concrete sandwich panel (CSP) with non-shear connectors. The variables in this study were the casting direction of reinforced concrete walls and types of insulation. Test results indicated that the types of insulations and casting direction have a significant effect on the bond strength between concrete wall and insulation. The effect of insulation type is notable for CSP cast horizontally concrete walls.
A Structural Analysing Model of Sichuan Vernacular Dwelling
Authors: Min Shu , Yang Chun Yan
Published: March 2013

The overall purpose of this paper is to set up a new research model for Sichuan Courtyard Dwellings by space syntax tool. Through analysing the basic concepts of space syntax theory, the paper creatively uses activity space other than functional space as a media to shape a new framework. It will comprehensively be merged with other research methods such as everyday life activity and cultural contexts.
Feedback and Sensitivity Analysis for Mass Data from Transverse Joints Monitoring System of Super Arch Dam in Sino Mainland
Authors: Wang Ya Jun , Zuo Zheng , Yan Xin Jun , Guo Peng Wei
Published: March 2013

The fuzzy cluster analysis for monitoring data, based on SOM neural network, was applied to study the working behaviors of transverse joints of the super arch dam during construction phase. The parental samples were identified with the classification results of fuzzy-cluster researches. Thereby, the Elman network was used to diagnose test samples. Introducing the transverse joints monitoring data from super arch dam as an example, the results show that the proposed method has superb applicability and stability in both of error analysis and diagnosis accuracy.
Study on the Dynamic Response and Anti-Collapse Mechanism of High-Pile Wharfs with Different Water Depths
Authors: Song Bo , Zheng Fei , Wu Peng
Published: March 2013

In recent years, many earthquakes occurred all over the world and caused different degrees of damage to the engineering structures. Therefore, it is increasingly important to ensure the safety and stability of the port structure and to study the seismic performance of the wharf structure. Considering pile-soil interaction, numerical simulations of high-pile wharf were done by using the finite element method, and the displacements, bending moments and shears of the 7m wharf were obtained subjected to different kinds of earthquake waves, such as far-fault and near-fault seismic waves. The plastic characteristics of the wharfs with different water depths(7m, 10m, 12m) were researched subjected to seismic waves with different peak accelerations and advises for the anti-collapse mechanism of the wharfs were provided.
Research on a Neotype of Silica Sphere Filler
Authors: Gu Wen Juan , Cheng Zheng Yong , Li Ying , Li Hou Bin
Published: March 2013

A neotype of silica microspheres were synthesized with chloropropyltrimethoxysilane (WD30) and tetraethoxysilane (TEOS) by sol-gel method. And the thermal properties of the filler both in nitrogen and in air condition were studied by means of thermogravimetric analysis. The morphology of the filler was measured by TEM. The so synthesized spheres were added into the silicone rubber whose mechanical strength was increased greatly. The molecular structure of the filler and the silicone rubber were characterized by FTIR. The possible strengthen mechanism of the filler was discussed. The neotype silica sphere researched in this paper could react with the PDMS chains which perfects the vulcanization of the silicone rubber. This kind of silica sphere exhibits many merits for usage as filler.
Vibration Table Test and Computer Simulation Analysis of Reinforced Concrete Eccentric Frame - Shear Wall Structures
Authors: Li Bing , Jiang He Ping
Published: March 2013

Reinforced concrete eccentric frame - shear wall structures has been widely used in Engineering, but this structure is mostly used for high-rise structure. Depending on experimental study will be unable to accurately draw the seismic reflection of structure, it needs to use the simulation software to study the seismic performance of high-rise structure. In this paper, by using ANSYS finite element analysis software to establish the numerical model which is based on the test model to carry out the seismic performance simulation. Then, through the improvement measures to get the measures for improved seismic performance.
Preparation Process of Magnesium Hydroxide by Dunite
Authors: Ma Jian Hua
Published: March 2013

The preparation process of magnesium hydroxide, which was prepared by acid leaching method using dunite as material, was introduced. Dunite was firstly calcined for 4h at 700°C and treated by 4.0 mol/L of H2SO4 solution at 100°C for 2h. Secondly, the leaching solution was oxidized by H2O2, and ammonia was added in the solution to adjust its pH to 7.0-8.0. After the impurities were leached, the leaching solution was treated by 4.0 mol/L of NaOH and 2% of C11H23COONa, reacting for 1h, ageing for 2h. Then to obtain dried magnesium hydroxide, the insoluble compounds were dried by heat and magnesium hydroxide would be produced. The leaching rate of Mg2+ is 84.01%. XRD and SEM indicated that the shape of particles was platelet with a diameter of 150 nm. The product can reach the requirements of HG/T3607-2007 industrial product standard
Micro-Compression Testing of TSV Copper Pillar: An In Situ Method and Mechanical Property
Authors: Gu Ting , Cheng Ping , Wang Hui Ying , Dai Xu Han , Wang Hong , Ding Gui Fu
Published: March 2013

This paper puts forward an in-situ testing method for the mechanical properties of TSV copper pillar by using micro-compression experiment. The sample for micro-compression test is prepared by the processes as follows: (a) etching TSV with deep reactive ion etching (DRIE), (b) sputtering a layer of Ti/Cu as the seed layer, (c) TSV copper plating technology, and (d) corroding the silicon to obtain the final specimen. The micro compression test is done with a micro-compression system, consisting of a three-dimensional adjustable stage, a microscope, a force sensor, and a piezoelectric motor. The experimental results show that the platform can test TSV copper pillar’s stress, the accuracy is reached mN. The yield strength of TSV copper pillar is about 199.89 MPa.
Comparison of Characteristics of Rapid Thermal and Microwave Annealed Amorphous Silicon Thin Films Prepared by Electron Beam Evaporation and Low Pressure Chemical Vapor Deposition
Authors: Hsieh Chi Hua , Tsou Li Te , Chen Sheng Hao , Chen Huai Yi , Lee Yao Jen , Lai Chiung Hui , Koo Horng Show
Published: March 2013

In this study we use chemical and physical vapor depositions to fabricate amorphous silicon (a-Si) films. We also use traditional rapid thermal annealing (RTA) and advanced microwave annealing (MWA) to activate or crystallize a-Si films and then observe their sheet resistances and crystallization. We discovered, although the cost of films fabricated by electron beam (e-beam) evaporation is relatively lower than by chemical vapor deposition (CVD), the effects of the former method are poorer whether in sheet resistance or film crystallization. In addition, only at the doping layer prepared by CVD can film crystallization degree produced by MWA match RTA.
Research on Homogenization of Composite Materials
Authors: Zhou Zhen Yu , Xue Qi Wen
Published: March 2013

A numerical model is given to identify equivalent parameters of composite materials, using BP neural network algorithm. Taking Filament-wound composite pressure vessels as the research object, finite element models are first constructed .Getting node displacements as network training samples, the mechanical parameters as output information of network for effective training, the equivalent material parameters can be obtained. The satisfactory numerical validation is given and results show that the proposed method can identify the equivalent modulus and the equivalent Poisson’s ratio of the Filament-wound composite pressure vessels with precision. The computational efficiency is improved with BP neural network.
Characterization of Rapid Thermal and Micro-Wave Annealed Germanium Thin Films Grown by E-Beam Evaporation on Glass Substrates
Authors: Tsou Li Te , Chen Sheng Hao , Chen Huai Yi , Lee Yao Jen , Koo Horng Show , Lai Chiung Hui
Published: March 2013

In this paper, we used the electron beam (e-beam) evaporation to deposit Ge thin film on glass, and used microwave annealing (MWA) system of 5.8 GHz frequency for thin film crystallization. Then, we compared the MWA experiment results of sample sheet resistance (Rs), crystallization strength and cross section with those using traditional rapid thermal annealing (RTA) equipment. We found that MWA can get poly-Ge thin film with (111), (220) and (311) crystallization directions and optimal Rs at a temperature of about 450 ° C without affecting the film thickness. By comparison, RTA equipment can only reduce the sample Rs at least temperature of 550oC.
Composite Material of MnO2 and CNT for Supercapacitor
Authors: Kang De Qun , Chen Ze Xiang , Hu Tian Yong , Ren Jun , Dong Miao
Published: March 2013

MnO2 nanoparticle was produced using liquid coprecipitation method, CNT was produced using microwaveplasma chemical vapor deposition(MWPCVD). SEM and EDS were used to examine the morphology and the elements of the samples. The diameter of MnO2 particle is about 300nm. And the CNT sample has a diameter about 10~20nm and a length longer than 5 µm. Two methods, namely annealing and doping CNT, were used to modify the electrochemical characteristics of MnO2 particle. The electrochemical characteristics were tested using galvanostatic charge-discharge cycling. And the results demonstrated that the prepared MnO2 have a good pseudocapacitance behavior and power characteristic. And the specific capacitor (SC) of MnO2 particle was about 145.41F/g, the SC of CNT was 136.30F/g, the one up to 179.89F/g with a dopant of CNT.
Control Architecture for Garbage Sorting Robot
Authors: Yu Yong Bin , Fu Guo He , Xing Lin Xi , Tang Yao Ze
Published: March 2013

Garbage sorting robot, which consists of development platform, power supply module, object detecting module, some control modules, and so on, is presented in this paper. This research focuses on control architecture of garbage sorting robot including mechanical hand control, positioning algorithm and recognition algorithm. The garbage sorting robot and its control algorithm have been demonstrated and verified through the contest.
A Method for Measuring Pressure under Rotating Conditions
Authors: Li Deng Chao , Luo Xiang , Cai Xu
Published: March 2013

A method which can accurately measure surface pressure under rotating conditions is presented. Based on the calibration for strain type pressure sensor, a curve which shows the functional relationship between sensor output signal and actual pressure under different rotational speed is obtained; and the diaphragm deformation caused by centrifugal force can be neglected by the curve. Thus, the actual pressure can be acquired accurately. The factors which may cause errors on the experiment are analyzed. Moreover, the correctional method for the experimental data is attained.
The Design of Micro Electrostatic Structure with Low Driving Voltage
Authors: Chen Zhi Xue , Dai Xu Han , Zhang Qi , Lu Wen , Ding Gui Fu
Published: March 2013

A new design of micro electrostatic actuator with low driving voltage is presented in this paper. It can reduce the operation voltage effectively without decreasing the gap between electrodes. In the proposed actuator with low driving voltage, the fixed electrode was designed as a stepped structure to divide the driving process into two steps. The peripheral electrode and inner electrode will be closed one by one. The two step pull-in processes will lower the actuation voltage significantly. According to the current calculation, the new structure with low driving voltage can reduce the actuate voltage significantly.
Research on Key Problems of Simulation Training for Practical Software Entry Based on IP Filter Hook
Authors: Lv Hui Fang
Published: March 2013

Higher training efficiency and realistic of equipment operation simulation are solved by adopting practical software entry based on IP filter hook. Key problems of realization details such as data interception and data submission are also presented within this approach, which has general feasibility for operation simulation training of some software equipment based on wide area network. And it possesses favorable practical value due to its advantages such as verisimilar man-machine interaction, network condition unconstrained, training flexibly and conveniently.
Numerical Simulation Study of Impinging Jet Impact Fin Surface on Heat Transfer Characteristics
Authors: Zhou Li Ming , Zhu Lei , Zhao Jing Quan , Zheng Meng
Published: March 2013

Three-dimensional numerical simulation was implemented to analyze the heat transfer characteristics for jet impingement impact fin surface. 60 calculation cases were simulated to investigate the effects of different fin surfaces on heat transfer characteristics, and 12 jet array impingement cases were calculated for comparison. The results shown that the fin shape, the height and the fin arrangement were the critical factors to affect the jet impingement and the best combination were existed in a certain range. The thermal resistance of cylinder fin arranged in order was34.7 percent higher than that of cylinder fin arranged staggered. The thermal resistance of square fin arranged in order was38.9 percent higher than that of square fin arranged staggered .The heat transfer coefficients of impinging jet impact fin surface were better than that of jet array impingement. The fitting correlations on heat transfer of impinging jet impact fin surface were given.
The Effect of New Pouring Precooling Concrete on Lower Layer Concrete in Different Seasons
Authors: Tian Kai Ping , Xu Bai Lin , Huang Yao Ying , Zhou Yi Hong , Ding Yue Mei
Published: March 2013

Based on massive concrete block in practical engineering, the effect of new pouring precooling concrete on lower layer concrete in different seasons was simulated by using three-dimensional finite element simulation program of non-steady temperature field, and the temperature changes near the surface of lower layer concrete have been analyzed detailedly. It is indicated that, there is obvious “cold strike” effect of new pouring precooling concrete on lower layer concrete in summer, the effect in autumn followed by, and there is also the effect in spring but not obvious. In winter, as ambient air temperature is very low, there is not “cold strike” effect and the lower layer concrete temperature gradually recovery after pouring new concrete. Because actual concrete pouring deck surface maintenance is often not in place, the surface temperature of the pouring deck, which is greatly influenced by ambient air temperature and solar radiation, is very high in high temperature seasons. At the moment, the “cold strike” effect of new pouring precooling concrete on lower layer concrete is very obvious and likely to lead to the crack of the concrete. Hence, it is suggested that, after finish pouring of concrete and final set of concrete, sprinkling water or flowing water maintenance should be carried out in high temperature seasons, such as summer and autumn; before pouring the concrete, it is better to take measures, like spray and sprinkling water, to reduce the surface temperature of lower layer concrete, and try to avoid starting pouring concrete at midday.
The Design and Implementation of Tri-Axial Magnetometer
Authors: Liu Jia Wen , Zhou Qing Hua , Li Li , Li Tao
Published: March 2013

The design, implementation, and testing of a tri-axial magnetometer instrument are introduced. The design is based on the MAG3110 chip. This chip has the properties of low power consumption and high resolution in the conventional mode. It runs with the peak power at 86.4μJ and the resolution of 0.1μT. The 12C5A60S2 MCU is chose as the data process and transfer unit. The data from the MCU is received by the principal computer through serial port. The measurement results, including the strength and the three component of magnetic field are displayed on PC by real-time curve through a VB programmed interface. The comparison between the measurements and the theoretical values shows that this instrument has the characteristic of high accuracy, high sensitivity and real-time display.
Adaptive Resource Allocation for the Multi-User Multi-Carrier Networks
Authors: Yang Ying
Published: March 2013

In this paper, we investigate the problem of allocating transmission data rates to users in multi-user multi-carrier networks. The paper provides a general problem of power and rate allocation that the utility functions can be nonconcave and nondifferetiable. This constrained optimization problem turns utility maximization into nonconvex, which is well-known to be difficult. To solve this problem, the dual optimization is analyzed to decompose the original optimization problem, and then a simple bisection algorithm is proposed.
Isolation, Characterization of a Candida Strain Capable Degrading of Dyes 4,5-Diamino-1-Pyrazole Sulfate
Authors: Liu Xiu Yan , Li Jing , Xie Zheng Miao
Published: March 2013

One strain of Candida L-2, capable of degrading azo dyes 4,5-Diamino-1-pyrazole sulfate, was isolated from a lab-scale sequence biological reactor (SBR) sludge treating textile effluent. The isolate was identified as Candida rugopelliculosa according to its physiological characteristics, biochemical tests, and 26S rDNA D1/D2 gene phylogenetic analysis.
Research on the SGD in the Yang River Downstream Region Based on Visual MODFLOW
Authors: Zhao Quan Sheng , Feng Juan , Zou Hui
Published: March 2013

In this paper, the scope of study area and boundary conditions are determined by anglicizing the natural geographical and geological hydrogeological conditions of the study area. Building the groundwater system conceptual model and numerical model with the Visual MODFLOW software, and then, identifying and validating the numerical model with the dynamic observation dates from 2001 to 2010. At last, simulating and analyzing the conveying capacity of SGD to Jiaozhou Bay with the model after identifying and validating. The results show that：1）Atmospheric precipitation influences on SGD greatly, the conveying capacity is 28.38×106m3/a in rainy year（2007）, but only 0.24×106m3/a in dry year；2）The river leakage recharge influence the SGD；3）The Aquifer Medium、types of aquifer and lithology all influence the SGD；4）The changes of sea level and briny physical properties influence the SGD.
Based on the Literature Statistical Ecological Compensation Academic Research Characteristics and Development Analysis
Authors: Dong Gui Juan
Published: March 2013

This paper by the methods of statistical method, the ecological compensation in recent years the academic research published in the field of the books and publications, degree thesis and journal articles to carry on the analysis. This article from the research object, the source institutions and research grants, etc., to journal articles classification statistics. Summary pointed out that the subject has the characteristics of complementary and keep pace with The Times, is deep and systemic direction development, strengthen the practice application of the subject is the direction of further development.
Environmental Quality Management by ISO14001
Authors: Xia Wei Hong , He Hui Hong , Zheng Yi
Published: March 2013

The course Environmental Quality Management by ISO 14001 is a special course offered to students majoring in Environmental Engineering. It aims to let students grasp basic knowledge on ISO 14001, including mode of ISO 14001, content of ISO 14001, planning, establishing and performing of it. ISO 14000 (made by International Standard Organization), has been enacted to protect the environment through environmental quality management, among which ISO14001 is the most important section. With increasing damage of the environment across the world, ISO 14001 was revised in 1996, the new version was carried out in 2006. Therefore, this course requires construction in accordance with the revised new ISO 14001 version to keep up with environment quality management nowadays.
Ultrasound-Assisted Emulsiﬁcation Microextraction-Solvent Floating Solidification-Pre-Column Derivatization for the Determination of Estrogens in Water Samples
Authors: Li Yu , Zhang Chen , Meng Chong , Zhou Chang Zhi
Published: March 2013

The method of ultrasound-assisted surfactant-enhanced emulsiﬁcation microextraction combined with pre-column derivatization (UAE-SEEME-SFO-PD) was developed to simultaneously extract and determine the estrogens such as estriol (E3), bisphenol A (BPA), 17α-Ethynylestradiol (EE2), estradiol (E2) and nonylphenol (NP) in water samples. Central composite design was employed to investigate the effects of the factors, including emulsifier (Tween 20) volume, extractant (dodecanol) volume, ultrasonic power, ultrasonic time, the amount of derivating agent (paranitrobenzoyl chloride), temperature of derivatization and derivatization time, on the response of analytes. The optimized analytical conditions were obtained by response surface plot as follows: 40 µL of Tween 20, 35 µL of dodecanol, 62.5 W of ultrasonic power, 15 min of ultrasonic time, 5.0 mg of derivating agent, temperature of derivatization 35 °C and derivatization time 2.0 min, with the linear range of 0.02-2.0 mg/L for E3, BPA, EE2 and E2, 0.02-1.0 mg/L for NP, respectively (the correlation coefficients ranging from 0.9950 to 0.9999). Also, the limits of detection were found between 1.06-5.04 µg/L. The spiked recoveries of estrogens under different spiked levels (0.02, 0.20 and 1.00 mg/L) for estrogens were in the range of 88.08-117.33%, and the relative standard deviation (RSD) was of 0.75-9.73%. Additionally, the method could be applied to analysis of estrogens in real water samples (collected from upstream and downstream of a reservoir), and the relative recoveries of estrogens under spiked levels (0.05 and 0.50 mg/L) for estrogens in real water samples were in the range of 85.18-124.17% (RSD 0.30-10.71%).
Construction of Emission Reduction Potential Model on Refinery and Chemical Enterprises
Authors: Li Xing Chun , Sun Zhao , Du Xian Yuan , Wang Meng , Li Yu
Published: March 2013

Refinery and chemical enterprises in China are mostly of high energy consumption and high pollution enterprises, so that greenhouse gases, SO2, NOX, NH3-N, and COD have great emission reduction potential. At the present stage, refinery enterprises emission reduction potential just for a pollutant is not comprehensive enough. Based on the above-mentioned five pollutants of refinery and chemical enterprises, the pollution reduction potential model are established by using linear programming method, which can provide decision support of emission reduction for refinery and chemical enterprises during the "12th Five Year Plan". The comprehensive index evaluation method not only can be used to clean production evaluation about evaluation of the environmental impact of large-scale integrated refinery project, also can be used to clean production audit of existing projects and enterprises to implement cleaner production performance evaluation.
Application of Shiono and Knight Method to Compound Open Channel Flow with One-Line Emergent Vegetation
Authors: Sun Xin , Shiono Koji , Fu Xiao Ying , Yang Ke Jun , Huang Ting Lin
Published: March 2013

A quasi two-dimensional model was developed to calculate depth-averaged velocity and bed shear stress in a straight compound channel with one-line emergent vegetated at the floodplain edge. Reduction in volume of water due to vegetation is modelled as porosity. Drag force due to vegetation is modelled as an additional momentum source term in the Navier-Stokes equation. Estimation methods for model parameters—friction factor, roughness height due to drag force, porosity, eddy viscosity and advection term-are discussed. The predictive capability of the model is assessed against experimental data with regard to distributions of depth-averaged velocity and boundary shear stress. The results show that the quasi 2D model well reproduces a reasonable simulation of the flow field under relative water depths of 0.24 and 0.52.
Ballast Waters Treatment Using UV/(H2O2+O3) Advanced Oxidation Process with Heterosigma akashiwo, Pyramimimonas sp., and Escherichia coli as Indicator Microorganism
Authors: Huang Hong , Yu Hua Feng , Liu Guang Ming
Published: March 2013

Introducing invasive species through ballast water is a specific pollution problem and has recently identified as one of the main concerns of Maritime Organizations. UV/(H2O2/O3) advanced oxidation process is a technological alternative to prevent this maritime pollution. In this present study, inactivation efficiency of the UV/(H2O2/O3) processes for ballast water treatment using Heterosigma akashiwo, Pyramimimonas sp. and Escherichia coli as indicator microorganisms was investigated. Compared with individual or combined two units processes using UV, H2O2 and O3, the UV/(H2O2+O3) process yield the highest levels of inactivation due to synergistic effects. In order to study the dynamic inactivation efficiency of equipment for stimulated ballast water treatment, the effects tests of the hydraulic residence time were conducted. The results indicated that the shorter hydraulic residence time had better inactivation efficiency. These findings have implications for the ballast water treatment.
Estimation of Lead Releasing Characteristics in Contaminated Agricultural Soils by Chelating Agents
Authors: Xu Cheng Bin , Li Yao Yao , Sun Xue Kai , Bai Jie
Published: March 2013

Lead (Pb) is a highly toxic element because of its accumulative and persistent character in the environment. Especially, the risks of their potential entry into the food chain and pollution of heavy metal in an agricultural system will threaten to human health. Songsan wastewater irrigation region, a big rice production area of Anshan, Liaoning province, was polluted by containments of heavy metals for more than 80 years. The total Pb concentration in polluted soil sample was higher than in natural soil (value of environmental standard ≤35 mg•kg-1). In the study, the two chelating agents (EDTA and DTPA) were used to release Pb from the polluted soil. On the basis of single extraction procedures of Pb with two extracting agents, we found that EDTA had a significantly higher chelating capacity than DTPA (P<0.05). In addition, among our researches on releasing kinetics of lead with two reagents, the results indicated that the equilibrium action time was about 16 h.
Inspection System for Position of Frame Line in the Mould Based on Machine Vision
Authors: Cao Min Hao , Zhong Fei
Published: March 2013

In order to meet the online testing requirements in current manufacturing automated production of car foam，the paper proposes a method for detecting the mould that products the foam by using machine vision and introduces the overall solutions of the system. The detection arithmetic mainly includes the image preprocessing、image template matching, interesting region acquisition and the blob detection of image segmentation. The arithmetic is developed in VS2010.Through a series of experiments, the result shows that the arithmetic meets the requirements of inspecting various moulds on the production line.