bluuebunny/crossref_metadata_2025 huggingface dataset:
Structure Studies on Order Assemblage of ManganeseII Complexes
Authors: Liu Yu , Zhang Shan Shan , Gao Jian , Yang Tian Zhu , Tian Hong Xiao
Published: September 2013

The manganeseII complex [Mn (C9H9O3)2(H2O)2], the MnII atom is located on a twofold axis and is coordinated by two ethylvanillinate anions and two water molecule in a distorted octahedral geometry. The ethylvanillinate ligand chelates to the MnII atom through its ethyl and hydroxyl O atoms, with greatly differing Mn-O bond distances (2.3988(15)Å and 2.0675(13)Å).Adjacent complex link to each other via hydrogen bonds forming the three-dimensional supramolecular structure.
Interference Elimination of Sulfide Determination by Iodometry
Authors: Wang Lin , Li Guo Qiang , Zhang Yong Fa , Li Zhen Zhen , Shi Yu Liang , Wang Ya Zhen
Published: September 2013

As a classical method for sulfide determination in wastewater, iodimetry is adopted by many countries. But the existing of high concentration of reducing materials such as thiosulfate, sulfite and dissolved organic, which cant be eliminated by the pretreatment of zinc acetate-precipitation filtration, have an important influence on determination. The study on elimination method is carried out in this paper. It is indicated that the interference of S2O32-and SO32-can be eliminated by washing sedimentation with KOH solution of 10%. Iodometric titration with the pretreatment of zinc acetate-precipitation filtration and washing precipitate with 10% KOH is an accurate method to determine the sulfide content.
The Role of Beclin1 Gene in Autophagy and Apoptosis Induced by Ionizing Radiation in MCF - 7 Cells
Authors: Qi Ya Li , Liu Yan Jun , Zhao Da Li
Published: September 2013

Objective To discuss the role of Beclin1 gene in autophagy and apoptosis induced by ionizing radiation in MCF - 7 cells. Methods MTT assay was used to detect the influence of cells proliferation when beclin-1 gene was over expression and interference. Flow cytometric analysis detected the change of MCF - 7 cells apoptosis after irradiating by X-ray. Western blot method detected total protein changes of beclin - 1. Results Beclin-1 gene was interferred partly, the amount of protein expression of MCF-7-beclin1Ri cells reached to the lowest at 4 h, rose at 8 h, got to the most at 16 h and decreased at 32 h, but still held at higher level;Beclin-1 gene over-expression, the amount of protein expression increased gradually with the extension of time, and got to peak at 32 h. Conclusions Ionizing radiation can stimulate beclin-1 and exist relations of dose - effects in MCF-7 cells.
Effect of Chelidonine on the Expressions of Cdk1 and CyclinB1 Proteins in SGC-7901 Cells
Authors: Qu Zhong Yuan , Zou Xiang , Zhao Jing Wen , Ji Yu Bin
Published: September 2013

To study the effect of chelidonine on Cdk1, p-Cdk1( Thr14), cyclinB1 protein expression in SGC-7901 Cells, and to explore the mechanism of chelidonine inducing G2/M phase arrest in SGC-7901 Cells. Western Blotting was used to study the effects of chelidonine on the Cdk1, p-Cdk1(Thr14) and cyclinB1 protein expressions in SGC-7901 cells. Chelidonine could significantly decrease the expression of Cdk1 and cyclinB1 protein. Meanwhile, chelidonine could remarkably increase the expression of p-Cdk1(Thr14) protein in a dose dependent manner. Chelidonine can down-regulate the expression of Cdk1, cyclinB1 and up-regulate p-Cdk1 (Thr14) protein expression in SGC-7901 cells,which may be one of the role mechanism of G2 /M phase arrest induced by chelidonine in SGC-7901 cells which may be one of the role mechanism of G2 /M phase arrest induced by chelidonine in SGC-7901 Cells.
Study on Apoptosis of Human Promyelocytic Leukemia HL-60 Cells Induced by Fucosterol via Death Receptor Pathway
Authors: Ji Yu Bin , Song Dong Xue , Ji Chen Feng
Published: September 2013

The purpose of this study is to investigate the effect of fucosterol on the induction of apoptosis and the molecular mechanism involved in Human promyelocytic leukemia HL-60 Cells. HL-60 Cells were treated with different concentrations of fucosterol at different time. MTT method was used to study fucosterol anti-tumor activity. Morphology observation was performed to determine the effects of fucosterol on apoptosis of HL-60 cells. Flow cytometry (FCM) was used to detect the cell cycle. Laser scanning confocal microscope (LSCM) was used to analyze the expressions of Fas, FasL, Fadd and Caspase-8. Caspase activity kits were used to determine the activity of Caspase-8 and Caspase-3. The results showed fucosterol could inhibit the growth of HL-60 cells, and the apoptosis morphology for 48 h treatment was obvious, which showed cell protuberance, cytoplasm concentrated and apoptotic body. Fucosterol treatment for 24 h increased the protein expression of Fas, FasL, Fadd and Caspase-8. It also showed that the activity of Caspase-3 and Caspase-8 has increased significantly. In conclusion, Fucosterol could induce HL-60 cells apoptosis via death receptor pathway.
Colorimetric Detection of Melamine Based on Poly-Thymine Stabilized Gold Nanoparticles
Authors: Jin Chong , Zhao Hui Min , Liu Meng , Tian Jun Ping , Quan Xie
Published: September 2013

A simple, fast and reliable colorimetric method for melamine detection based on gold nanoparticles (AuNPs) and poly-thymine (poly-T) is reported. Poly-T strands attract AuNPs through static electricity and keep them stable against aggregation in the presence of NaCl. The affinity between melamine and poly-T, hydrogen bond, frees AuNP from the protection provided by poly-T and thus makes AuNPs aggregate in the presence of NaCl. The color change of AuNPs from wine red to blue can be observed immediately by the naked eye during the aggregation process, and can be accurately recorded with the help of a UV/vis spetrophotometer within 5 minutes. The limit of detection (LOD) of melamine in pure water is 0.146 μmol/L with a linear range from 0.2×10-7 mol/L to 10.0×10-7 mol/L. In fresh milk and milk powder, the LOD is respectively as low as 2.37 μmol/L and 5.36 μmol/L.
An Integrated Clustering Algorithm and its Application in Surgical Navigation
Authors: Yan Shi Ju
Published: September 2013

Extracting landmark geometric parameters in fluoroscopic image is a key technique in the camera calibration process of C-arm-based surgical navigation. This paper proposes an integrated clustering algorithm for landmark geometric parameters extraction. The proposed algorithm integrates an adaptive thresholding method and a connected components analysis method, it needs only one pass to process grayscale images and outcomes landmarks parameters directly. By experiments, the proposed algorithm demonstrates its high robustness, reliability and running efficiency in landmark geometric parameters extraction.
Development of Floating Offshore Wind Turbine and the Mooring System
Authors: Zhao Xue Liang , Gong Wei Ming
Published: September 2013

The offshore wind turbine, especially the floating offshore wind turbine in the deep sea is a perspective technology in the context of increasing energy demands. Mooring system, as an important unit of the floating offshore wind turbine is emphasized. The methods of in-situ test and the laboratory experimental tests are reviewed. Some new testing methods are discussed. The most commonly used anchor systems are explored. The paper aims to present some future research work that is important for the development of the floating offshore wind turbine technology.
Plate Character Segmentation Algorithm Based on Projection Feature and Prior Knowledge
Authors: Liu Jun , Xiang Jun , Xu Chun Long
Published: September 2013

nfluenced by factors like mud, frame, rivet, space mark and plate slant, plate character segmentation tends to be inaccurate and even results in mistakes. In order to tackle these problems, this paper puts forward a plate character segmentation algorithm based on projection feature and prior knowledge. That is, firstly of all, to carry out horizontal coarse segmentation by horizontal projection, then use both vertical projection and prior knowledge to conduct vertical segmentation. At last, to carry out horizontal fine segmentation by local projection. The experiment demonstrates that such algorithm can solve the above mentioned problems accurately and practically with high-efficiency.
Experimental and Numerical Study on the Suppression of Pool Fire with Water Mist
Authors: Jian Chen , Ying Xu Yan , Sheng Wang Yan
Published: September 2013

The objective of this work is to investigate the diesel analog pool fire with water mist .For this purpose, a series of water mist fire suppression experiment are carried out by changing the nozzle operating pressure, the source of fire power, opening and closing the exhaust fan to analyze the inhibitory effect of water mist to oil pool fire in the enclosed compartment of 5.0m × 5.0m × 3.0m. The results shows that extinguishing efficiency first increases and then decreases when the nozzle operating pressure increases from 8MPa to 12MPa, reaching the highest efficiency at 10MPa; increasing the power of the source of fire, the burning speed increases and the water mist fire extinguishing efficiency decreases; fresh oxygen coming in when smoke exhaust fan is turned on and water mist fire suppression efficiency decreases. Using FDS to simulate the water mist extinguishing oil pool fire, the predict temperature field and extinguishing time are basically consistent with the experimental results. In the actual applications of water mist fire suppression systems engineering, we can use the FDS field simulation methods to predict the characteristic parameters variation of the fire fighting fire temperature and component concentration, which is significant to the fire extinguishing system optimized design.
The Experimental Study on Extinguishing Aircraft Cabin Fire by Water Mist
Authors: Jian Chen , Ying Xu Yan , Jie Tan Zhi
Published: September 2013

The effect of flow coefficients, working pressures, nozzle layout and aircraft angle on extinguishing aircraft cabin fire by water mist were studied by experiment. The results show that the fire suppression effectiveness is increased with the increase of flow coefficient and working pressure; the diamond-shaped layout in sprinkler is better than square layout,and the aircraft angle of 30° is better than of 10°or 20°.
Evaluation the Environmental Awareness of Listed Companies by FAHP
Authors: Chen Shou Ming , Bu Miao
Published: September 2013

As an important component of corporate social responsibility, people pay more and more attention to enterprises environmental awareness, especially the listed company. Due to its multi-criteria nature, selecting a proper method involves an insight analysis among available multi-criteria decision making (MCDM) techniques. Among numerous methods of MCDM, this paper presents a decision framework based on fuzzy analytic hierarchy process (FAHP) for evaluating the environmental awareness of listed companies. The applicability of the proposed approach is verified through a case study.
Approaches and Processes of the Project Management
Authors: Xie Hai , Zhang A Ying
Published: September 2013

Project management is the discipline of planning, organizing, motivating, and controlling resources to achieve specific goals. A project is a temporary endeavor with a defined beginning and end (usually time-constrained, and often constrained by funding or deliverables), undertaken to meet unique goals and objectives, typically to bring about beneficial change or added value. The temporary nature of projects stands in contrast with business as usual (or operations), which are repetitive, permanent, or semi-permanent functional activities to produce products or services. In practice, the management of these two systems is often quite different, and as such requires the development of distinct technical skills and management strategies. The primary challenge of project management is to achieve all of the project goals and objectives while honoring the preconceived constraints. The primary constraints are scope, time, quality and budget. The secondary, and more ambitious, challenge is to optimize the allocation of necessary inputs and integrate them to meet pre-defined objectives.
Study on the Performance of Mg/Al Composite Anode
Authors: Liu Xin , Liu Xue Qing , Chen Meng Li , Ou Li , Hou Bao Rong
Published: September 2013

The electrochemical performance of Mg-Al alloy composite sacrificial anodes in seawater was studied. The results show that Mg-Al composite anode can keep the electrochemical characters of Mg anode and Al anode respectively. The protection process of Mg-Al composite anode includes 4 steps: (1) Mg anode protects the steel, (2) interface oxides expose in seawater and anode performance decreases, (3) interface oxides dissolve in seawater and Al anode begins to work, (4) Al anode protects the steel efficiently.
Design and Optimization Analysis of a Novel MEMS Micro-Hotplate for Gas Sensor
Authors: Zhang Xiao Bo , Liu Chang Bai , Liu Li , He Yue , Wang Lian Yuan
Published: September 2013

The paper presents a novel Si-substrated micro-hotplate for gas sensor. Use platinum filament as heater, SiO2 as thermal and electricity insulation. Through optimizing analysis, in order to make the gas sensor obtain perfect properties of higher temperature and uniform temperature distribution, the thickness of SiO2, thickness of Si substrate, electrode width and electrode space are designed to be 50, 250, 20 and 500 μm, respectively. Via the analysis of magnetic field distribution of the new gas sensor, the new electrode structure can eliminate the interference on the measurement signal from magnetic field, which is benefit for the improvement of sensor performance.
Research on Evaluation of Vehicle Dangerous Traveling State Based on Information Fusion Method
Authors: Wang Peng , Liu Zhi Qiang
Published: September 2013

An evaluation system of vehicle traveling state was proposed,and an unsafe vehicle traveling state recognition system was established using multi-level information fusion method. In view of the effects of the complexity of the driving environment, a variety of working conditions and the diversity of vehicle traveling characteristics, combing BP neural network with Dempster-Shafer evidence theory technique, the multi-information decision-level fusion was proposed to estimate the different kind model of the vehicle status. To verify the proposed strategies,the vehicle traveling posture evaluation system was established. The lane departure parameters and the relative distance parameters were studied in order to get the characterization of the vehicle traveling status information. The simulation results indicate that the adaptability and accuracy and the intelligence level of driving characterization estimation are significantly improved by using the pattern classification and decision technology of multi-source information fusion.
Design of Intelligent Fire Truck Based on STC89C51
Authors: Zhou Wan Zhen , Li Zhe
Published: September 2013

This paper presents the design of an intelligent fire truck, which is based on the STC89C51 signal chip and realizes tracing, obstacle avoidance, alarm, putting out a fire and so on. The truck uses a model car chassis as a frame, STC89C51 as a microcontroller and including DC motor, flame detector, infrared tracing module with some other circuits. The truck has taken advantage of all the chips and the comprehensive performances in each part reasonably, and the intelligent fire truck can work very well.
Design of Micromachined Thermal Expansion Gas Gyroscope Signal Detection Circuit
Authors: Wei Jing , Su Yan , Zhu Xin Hua
Published: September 2013

Micromachined thermal expansion gas gyroscope has the advantages of simple configuration, large working range and high shock resistance and can be widely used in the military and civilian field. However, as with other MEMS sensors,the output signal of micromachined thermal expansion gas gyroscope's sensitive structure is weak and difficult to detect are designed. In this paper, the design of the detecting circuits for micromachined thermal expansion gas gyroscope based on the phase sensitive detector is introduced. The measurement results of the prototype show a system scale factor of 2.3419 mV/(°·s-1), a non-linearity of 0.22%, a symmetry of 0.0037, and a zero-bias stability of 1.0182 °/s.
Simulation Design of Transmission Module of Coal Mine Roadway Advanced Detector
Authors: Liu Xi Gao , Zhang Wei Zhen , Zhang Wei Jie , Du Yi Bo , Liu Zhi Min , Jiang Xin Rui , Wu Miao
Published: September 2013

An advanced detector based on the dual frequency IP method was designed to solve the speed unmatched problem between the detection and excavation. The detector consists of the transmission module and the receiving module. This paper designed the circuit of the transmission module with the Proteus software and completed the control program with the Keil software. Through the co-simulation of the circuit and the control program, the transmission waveforms designed were obtained and the system proved available, which laid the foundation for the development of the transmission module of the detector.
Research on Neighbor Search Algorithms for Discrete Manufacturing System Based on Bogie Frame
Authors: Wang Xian Hong , Feng Wei Dong
Published: September 2013

The concept of "detailed search" near the extreme value by local search function of neighborhood search algorithm for operation optimization problem of discrete manufacturing system on train bogie is raised for the first time; the optimal solution of objective function based on process constraints genetic algorithm is taken as the initial value of neighbor function to search better solutions than it in the current neighbor, and the global optimal solution.
Array Pattern Synthesis Based on the Improved LDW-PSO Algorithm
Authors: Yang Jin Jin , Liu Luo Kun , Sun You Ming
Published: September 2013

PSO algorithm is intensively applied in array pattern synthesis. While the choice of inertia factor in classical PSO algorithm is a cumbersome task, improper inertia factor will result in slow convergence or falling into the local minima. This paper presents an improved algorithm based on LDW-PSO to avoid converging to the local minima. Simulation results show that the algorithm has faster speed and higher robustness compared with LDW-PSO algorithm.
A 3D Video Quality Assessment Method Based on the Disparity Map
Authors: Zhou Tong
Published: September 2013

3D video quality assessment is a hot spot in the market of TV industry. Most Research work are based on the DIBR. However in TV industry the main form of 3DTV is side by side.Up to now there have been very few video quality measures to deal with this situation.This paper proposes a 3D video quality method based on the disparity map to deal with this situation.The method comes out with the broadcast of CCTV3D on Jan 1st 2012.
Simulation on Three Dimensional Water-Exit Trajectory of Submarine Launched Missile
Authors: Wang Shao Zhu , Wang Han Ping , Yang Ming , Wang Lin Peng , Wei Guang Wei
Published: September 2013

Cool Launch project is an important launch mode of submarine launched missile, the water-exit trajectory characteristic of the missile in launching process becomes to research focus. Model of three dimensional water-exit trajectory of submarine launched missile was built based on dynamic mesh technique and simulation operation was carried out to obtain the characteristics of water-exit trajectory & attitude. The method adopted in the establishment of the model and the result has provided references to the research of water-exit trajectory.
Simulation Analysis on Vibration Mode of X-PLY Corrugated Paperboard in Transportation Engineering
Authors: Xia Rong Hou , Guo Yan Feng , Sun De Qiang , Chen Da Bin
Published: September 2013

X-PLY Corrugated Paperboard is a new type of cushioning packaging materials, which has a light weight, strength and stiffness and other advantages, usually be made into cushioning pads (pieces) and used in the field of logistics and transport packaging to protecting internal product from shock and vibration. In the actual logistics process,external vibration excitation is often caused package resonance and lead to final damage of the package, so understanding the package natural frequencies and mode shapes, which can avoid package resonance factors causing unnecessary losses. By using of Lanczos modal analysis method in ANAYS simulation software, we obtains the first-fourth natural frequency and vibration mode of X-PLY (A) corrugated paperboard cushion pads under three different static stress. By compared simulation results with the previous experimental results, it can be referenced for the promotion and application of X-PLY corrugated board in the field of Cushioning packaging.
A Rapid Renumber Method for Implicit Iteration of Unstructured Grids
Authors: Cheng Jie , Yu Ji Yan , Jia Fang Xiu
Published: September 2013

An approach called pseudo-peripheral was utilized to determine the starting cell for the Reversed Cuthill-McKee (RCM) algorithm. Then this approach was validated in a cavity domain, and consequently showed high efficiency during the renumber procedure. With such rapid renumber method, an implicit computational aerodynamic solver was established. The results of flow around wing NACA0012 reflected that the aerodynamic solver is efficient and accurate enough for engineering application.
A Simulated Annealing Based Algorithm for Energy-Constrained Ferry Route Design Problem
Authors: Wang Yong , Dou Qiang , Peng Wei , Gong Zheng Hu
Published: September 2013

Message ferry is a controllable mobile node equipped with long distance communication antennas and rechargeable energy, to collect data in sparse wireless networks and delivery it to the base station. The Energy-Constrained Ferry Route Design (ECFRD) Problem aims to schedule the ferry route when the energy of the ferry is not sufficient to access all the nodes in the network in one tour without charging, so as to minimize the total route length of the ferry. In this paper, we propose a simulated annealing based algorithm to solve the ECFRD problem. The experimental results show that the algorithm proposed in this paper can greatly reduce the total route length of the ferry, comparing the classic nearest neighbor algorithm.
User Behavioral Characteristics Mining Algorithms Based on Net-Flow
Authors: Wang Wei Hua
Published: September 2013

Network security technology-based firewall, intrusion detection, less user behavior from the network point of view to is considered possible vandalism. Net Flow collector for this problem, the network traffic statistics, the design of said data structures and statistical models of user behavior characteristics, the behavior of specific information, the establishment of the database behavior in a certain period of time granularity; on the basis of the behavior of database the design the clustering mining algorithm applicable to user behavior features, defined from the user behavior, determine the behavior patterns of individual users of the network. The experiments show that the design algorithm can effectively tap the behavior of the user's network, and provide a valid basis for management, analysis of user behavior.
Joint Power Allocation and Relay Selection Optimization for Cognitive Radio Networks
Authors: Su Li Ping , Chen Dong , Huang Wei Hua , Li Ning
Published: September 2013

This paper investigates the joint power allocation (PA) and relay selection scheme (RS) in two-way relaying cognitive radio networks consisting of multiple user-pairs and multiple relays. In order to reduce the computational complexity for practical scenario, we propose a branch and bound based (BnB-based) power allocation and relay selection scheme and a greedy power allocation and relay selection scheme to maximize the system throughput. The system is assumed under the constraint that the interference power from the secondary nodes in two way relay systems to primary user (PU) shall be less than a predefined interference threshold which can guarantee the normal communication of PU. Numerical simulation results show that the optimal PA and RS scheme has the highest system capacity, however, the greedy PA and RS scheme has the lowest complexity. The proposed BnB-based PA and RS scheme has the better tradeoff of system throughput and complexity than the above two schemes.
Optimization of Lipase Production from Arthrobacter sp.SD5
Authors: Ren Peng , Lin Wei Hua
Published: September 2013

Lipase is a kind of important hydrolase. It was widely used in the fields of food, leather, detergent and pharmaceutical. The production of lipase from Arthrobacter sp. SD5 was studied in the present paper. The medium composition and culture condition were optimized in order to improve lipase production. The results showed the best optimum conditions were on the following: culture temperature (40°C); initial pH value (8.0); liquid volume (20%); carbon source (olive oil, 2.5%); nitrogen source (peptone, 1.0%); biosurfactant (Tween-80, 0.2%).
Bi-Level Programming Models Applied in Urban Transportation Network Design Problems
Authors: Song Chuan
Published: September 2013

In this paper, we conduct a comprehensive survey on the past developments and recent advances of bilevel programming models, algorithms and practical applications in urban transportation network design problems. Moreover, based on this survey, some open problems and future research directions are proposed.
The Application of Open Scene Graph Technology in Visualization of Flight Simulation
Authors: Hu Chao Jiang
Published: September 2013

The method to set up visual environment of flight simulation was studied with Open Scene Graph (OSG) technology, and it includes the method and steps to build three dimensional digital earth, the method to read out airport and aircraft model, the method to simulate meters in the cockpit of an aircraft, and the method to simulate an aircraft fly in the visual digital earth environment, etc. Then software was written in VC++ based on the methods and steps given in this paper. The running results of the software in a personal computer shows that OSG technology can build up realistic simulation environment of flight visualization, and it is very helpful to realize realistic feeling and immersion of flight vision simulation of an aircraft in three dimensional digital earth.
Design and Simulation of the Exoskeleton Robot
Authors: Wang Chao , Wang Yu Lin , Ma Ming
Published: September 2013

In order to significantly improve the load capacity of the soldiers and the maneuverability as carrying heavy loads, the mechanism design and simulation of the wearable exoskeleton robot are studied in this paper. Firstly, the mechanism design of the exoskeleton robot is completed and the three-dimensional model of the exoskeleton robot is established. Then, the five-link mathematical model of the exoskeleton robot is established, the dynamics analysis of which is proceed. Finally, through using virtual prototype technology, the walking simulation of the robot is carried out and the results provide a basis for the future work.
Research on the Parameter Model Simulation Based on Computer Simulation Basketball Match
Authors: Liu Zhi Guo , Li Jun Yu , Ren Xiu Li
Published: September 2013

With the development of computer hardware and software, the simulation of computer virtual simulation has been rapid development. The running process of computer simulation platform need to deal with massive data, and in general software testing technology can not meet the requirements. On the basis of this, an application computer virtual platforms parallel test method is proposed. Firstly, this paper gives a brief introduction for the process of computer simulation, and then the testing method can carry out software programming, it will realize the virtual process of serial FIFO buffer and register through reading and writing function. In order to develop basketball virtual platform as an example, the use of Simulink modules in MATLAB compare the serial and parallel testing of two testing methods used by software debugging time. Finally, we find that the parallel test is the best scheme of computer virtual platform software test, to provide theoretical reference for the design of software testing process.
Research on the Virtual Reality Training Simulation Technology Based on Key Technology of Physical Simulation
Authors: Dong Xiao Yan
Published: September 2013

Through computer-related technologies, virtual reality allows the user to appreciate the induction of vision, auditory, tactile sensor and immersive feel in an interactive virtual environment. Because of the above-mentioned features, it has become one of the hot topics of the direction quickly. This paper discusses virtual reality simulation system, takes sports training simulation as an example, analyzes its key technologies and makes more people to understand the virtual reality simulation system. It provides some scientific ideas for the combination of virtual reality simulation with many other areas of development. The discussions about the key technology of virtual reality simulation system in this paper provide some reference for the development of many other cross-cutting areas combined with the virtual reality to a certain extent.
Research on Signal Detection Algorithms Based on Spatial Multiplexing of LTE System
Authors: Wang Dan , Zhou Yang , Qiu Zhi Hui
Published: September 2013

LTE system uses OFDM, MIMO and other key technologies, then signal detection is of great importance in LTE system. Several classical signal detection algorithms are analyzed and discussed, and an improved V-BLAST algorithm is presented in this paper. Meantime, the simulations are conducted with Matlab to analyze their performances. Compared with the traditional algorithm, the improved one has much better performance, which could be applied to TD-LTE RF conformance test system.
An Improved RFID Anti-Collision Algorithm
Authors: Liu Xiao Hui , Qian Zhi Hong , Wang Gui Qin , Zhang Xu
Published: September 2013

The dynamic bit-locking backoff (DBLBO) anti-collision algorithm was proposed on the basis of bit-locking backoff (BLBO) anti-collision algorithm . If there is only one collision bit When the reader is searching the locked collision bit , the reader can identify directly without queries.The proposed algorithm gives full consideration to the number of queries and throughput of the system.The analysis on simulation result indicates that DBLBO performs significantly better than the existing BLBO anti-collision algorithms. It is suitable for the RFID anti-collision protocol in a greater deal.
Stock Comment Reasoning Model Based on Entropy Theory
Authors: Song Hua Zhu , Wang Xiao Xue , Zhao Zi Yue , Zhou Fan , Song Xuan Zhu
Published: September 2013

Stock comment is very important for the bulls and the bears in the stock market. This paper first gave the basic principles to reasoning the stock comment. Next, the theory of entropy was imported in the stock comment reasoning, and the stock comment reasoning models were constructed in two methods. One adopts entropy to model, and the other applies entropy-weight to model. Finally, the random experiments were given, and the result showed that the reasoning model based on entropy-weigh has a higher accuracy than entropy.
The Research on University Librarys "Four-in-One" Cloud Computing Services Social System
Authors: Peng Xu Fu , Shi Shu Dong
Published: September 2013

Aiming at the problems on the management system, function orientation, resource sharing, information platform construction, technical support in university social services, the characteristics of cloud computing technique and its influence on the library informatization were carefully analyzed. The four-in-one cloud computing service society system structures of university library about reading, borrowing, selling, and service were designed and constructed .The problems of how the library serve the society in all directions were solved.
Optimization Model of Electricity Production in Iron and Steel Enterprises and its Application
Authors: Du Tao , Wang Bin
Published: September 2013

On the base of the analysis of the electricity production and consumption characteristics of iron and steel enterprises, this paper has established a optimization model of electricity production in iron and steel enterprises which comprehensive considered the electricity, gas, and steam. It can do joint optimization scheduling from electricity production and outsourcing, gas distribution, and steam production three sides, so that it can provide a reasonable electricity production and outsourcing strategy for iron and steel enterprises to reduce the system operation costs. Where, the optimized allocation of surplus gas and steam production scheduling is the means, the optimization scheduling of electricity production and outsourcing is ultimate goal.
Global Stability of a HBV Infection Model with Saturated Infection Rates and Time Delay
Authors: Pang Wei Juan , Hu Zhi Xing , Liao Fu Cheng
Published: September 2013

This paper investigates the global stability of a viral infection model of HBV infection of hepatocytes with saturated infection rate and intracellular delay. we obtain if the basic reproductive number is less than or equal to one, the infection-free equilibrium is globally asymptotically stable. If its greater than one, we obtain the sufficient conditions for the global stability of the infected equilibrium.
A New Finite Element Simulation by Genetic Search Algorithm
Authors: Meng Lei
Published: September 2013

By means of measuring creep curves, microstructure observation and FEM analysis of the stress field near the hole; an investigation has been made into the influence of the defects on creep behaviors and microstructure evolution of single crystal nickel-based superalloys. Results show that the creep lifetimes and plasticity of the single crystal nickel based superalloys are obviously decreased by microstructure defects. During high temperature creep, the stress isoline near the holes region displays the feature of the acetabuliform distribution, and possesses the bigger stress value at 45° angle direction relative to the applied stress axis. That results in the γ phase transformed into the rafted structure at 45° angle direction relative to the applied stress axis, and the circular holes defects are elongated into the ellipse in shape along the direction parallel to the applied stress axis.
An Ant Colony Algorithm for Remote Satellite and Ground Integration Scheduling Problem in Parallel Environment
Authors: Gao Peng , Tan Yue Jin , Li Ju Fang , He Ren Jie
Published: September 2013

The algorithms for solving the remote satellite scheduling problem are less effective usually in single computing environment. This paper designed a framework of ant colony algorithm for remote satellite and ground integration scheduling problem in the parallel environment, and given the detail of key steps in the algorithm. Experiments are show at the end of this paper to prove effective and validation.
An Application of HVG Method to Studying Variations of LDoS Flow Packet Sequence Pattern
Authors: Huang Zhi Jian , Peng Wei , Wang Yong Jun , Wang Yuan
Published: September 2013

By mapping one dimension time series into two dimension graph, Horizontal Visibility Graph (short as HVG) method provides a new way to analyze time series structural properties, it has been used in economics, biology, sociology and other areas related. In this paper, we apply it to investigate the Low-rate Denial-of-Service (LDoS) flow packet sequence pattern variations. We establish the Packet Sequence Model and put new metrics to measure the pattern similarity. Using the data carried out on PlanetLab, we find out that the packet sequence time series of the receiver has a bigger HVG degree than the sender, indicating that the packet sequence patterns get more irregular under the impacts of end-to-end delay.
Study on UAV Path Planning Oriented to Optimization of Positioning Error
Authors: Wu Cheng Dong , Yang Jian Yu , Sun Yao , Zhang Yun Zhou
Published: September 2013

For many applications in wireless sensor network (WSN) node positioning by unmanned aerial vehicle (UAV) need a path planning algorithm optimizing positioning error. In this article, we present an algorithm combining Voronoi diagram and geometric dilution of precision (GDOP) to make track points, considering both the efficiency of flying and accuracy of positioning. Then, we connect all the track points using genetic algorithm and we get the minimized flight path.
The Standard Chinese Head Building Used for Numerical Calculation of Specific Absorption Rate of Electromagnetic Radiation
Authors: Ma Yu , Wang Yu Duo , Ning Wu Tong
Published: September 2013

The paper introduces how to build a standard Chinese head to be used for numerical calculation of specific absorption rate of electromagnetic radiation using MAYA modeling software, including the demand background of building a standard Chinese head, international research status, as well as the urgency of relative research and study at present in China, and discusses the key steps of the standard Chinese head building using MAYA modeling software model, and the outlook for the numerical calculations after the modeling completed.
Fabrication and Characterization of Hydroxyapatite/Poly (L-Lactic Acid-Polycaprolactone Nanofibrous Composite Scaffolds
Authors: Wu Gui Fang , Liu Jia , Ma Yi Wen , Jiao Jian Jin , Xiao Xiu Feng
Published: September 2013

The multistage aperture nanofibrous composite scaffolds were fabricated by frozen extraction combined with particle leaching from a PLLA/PCL/HA/dioxane/ ethanol ternary system. and then the morphology and biological activity of composite scaffolds were analyzed. Results show that adding the porogen is advantageous to the formation of multistage aperture nanofiber composite scaffolds. And HA adds more conducive to the deposit of CHA on composite scaffolds, raises the biologic activity of the composite scaffold.
A Fast Tag Anti-Collision Algorithm for RFID Systems
Authors: Qian Zhi Hong , Wu Nan , Li Tian Ping , Zhao Shi Qiang , Zhu Shuang
Published: September 2013

A fast tag anti-collision algorithm is proposed based on the binary search algorithm. First, the reader sends a query to make sure of what prefixes all the tags have, and the prefixes were pushed into a stack. Then queries containing the prefix information are sent to identify the tags. During the query process, the bits of data transmitted between the reader and the tags were greatly reduced; the back track strategy was adopted to reduce the reader query times. Simulation results show that the proposed algorithm achieves better performance than other algorithms by reducing query times and identification delay and increasing throughput, and is more suitable for the identification of great amounts of data in Internet of Things environment.
Research of a Method of Creating a Video File Based on Metadata
Authors: Guo Jian Pu
Published: September 2013

This article brief introduced a method for using Speech Search metadata to create a video file in which user can extract subtitles automatically and search for spoken words in a video. Create temporal metadata through transcribed speech using the XMP metadata transcript technique with Premiere pro. The transcript can be edited to ensure the correctness of the text content; Write an After Effects script expression to show the transcript as subtitle in the screen. Change the layer markers to navigation cue points and export the video file. Practice has been proved that expertly mastered this method will help produce high efficiency and high quality movies.
Research on Classification and Redundant Information Filtering of Massive Data in Big Database
Authors: Wang Feng , Sun Cui Hua
Published: September 2013

The precise classification of massive information in big database was researched in this paper, and also the redundant information as the interference should be filtered in the subject. According to the traditional data classification method, the frequency points were concentrated and the data classification frequent points were not easy to be eliminated. The nodes classification technology with low self-adaptive property refused the nodes in high disturbance and in the deep attenuation parts, and then the classification precision and the immunity of the disturbance property were limited greatly. A new optimum data classification method and the redundant information model were proposed based on the chaotic probability analysis. The classification error rates was mapped as a probability density function based on the channel mapping function method, the classification probability was allocated with this probability density function. The random series which could reflect the essential feature was produced based on the chaotic probability analysis method which could meet to the demands of the random frequency classification. And the data clustering and optimization classification was realized finally. Simulation was taken with the KDD_CUP2009 experimental big database, and simulation result shows that the proposed method can classify each type of the data effectively. The performance of the data classification is perfect, comparing to the traditional neural net fuzzy c-means method, the classification precision rate was improved by 17.8% It show that the model and algorithm has excellent classification performance and can be taken in the application such as data mining, fault diagnosis and target recognition as engineering practice.
The Optimization of Project Time-Cost Based on Particle Swarm Optimization Algorithm
Authors: Wei Hai Min , Liu Rong Guang
Published: September 2013

Project schedule management is the management to each stage of the degree of progress and project final deadline in the project implementation process. Its purpose is to ensure that the project can meet the time constraints under the premise of achieving its overall objectives.When the progress of schedule found deviation in the process of schedule management ,the progress of the plan which have be advanced previously need to adjust.This article mainly discussed to solve the following two questions:establish the schedule optimization model by using the method of linear;discuss the particle swarm optimization (PSO) algorithm and its parameters which have effect on the algorithm:Particle swarm optimization (PSO) algorithm is presented in the time limited project and the application of a cost optimization.
Robust Observer for a Class of Linear System with Matched Uncertainty Based on LMI
Authors: Ni Huai Sheng , Chen Feng Xiang , Zhang Tong
Published: September 2013

In this paper, a novel framework of robust observer for linear system with parametric uncertain state matrix matched with output matrix is introduced. The scheme is derived by including an extra term to the feedback gain, and the term is obtained by the analysis of the Lyapunov stability theory and LMI (Linear Matrix Inequality). The proposed observer is less conservative and thus lead to a low gain matrix based on the novel framework. Finally, the effectiveness of the proposed method is validated by the numerical simulations on Matlab environment.
Application of the Mechanical Impedance of Body Arm Movement Based on the Virtual Tennis System
Authors: Yang Ling Hang
Published: September 2013

With the development of computer hardware and software technology, virtual reality technology of computer has been widely used in various fields. Virtual teaching process is one of the main applications of virtual reality computer technology. Tennis is one of the most common sports. Tennis process mainly includes the process of catching a ball, serving a ball and hitting a ball. Virtual process of tennis system must establish an accurate numerical simulation model to calculate the mechanical impedance during the arm movement of human. According to this, it builds a model of the mechanical impedance of human arm in tennis virtual system using three-dimensional simulation software in this paper and gets the curve of mechanical impedance through the simulation. Finally, the article compares calculation results with the theoretical results and concludes that the theoretical results and simulation results are basically consistent which provide a theoretical reference for the design of the development of virtual system for the human.
Research on Basketball Teaching Method Based on the Dynamic Access Control Model of SOA
Authors: He Quan
Published: September 2013

With the development of computer information science and technology, mode controlled by dynamic access and feedback can adjust the effect of physical education and sports teaching process. Basketball elective course is one of the favorite sport programs of many students in college. The game teaching is a new teaching model which not only breaks the traditional boring teaching method but also uses race in teaching and training process. It not only can mobilize the students' interest and enthusiasm for learning but also can improve the efficiency of the students. The dynamic SOA access model is an architecture model facing to service. Through SOA access control model, teachers and students can do a good interactive teaching and can communicate with each other about the teaching method and process timely and can review the effectiveness of teaching. Based on this, the paper designs and develops a new SOA-ARBA dynamic access control model and combines it with basketball sports teaching process. It also designs and evaluates teaching effect evaluation method of basketball teaching method and gets comparison chart of learning interest and achievement of game teaching method.
Research of Data Processing Method Based on Ajax Technology
Authors: Li Jing Mei , Zhang Bao Quan , Wu Yan Xia
Published: September 2013

Ajax technology has been widely applied in a variety of Web development. It takes full advantage of existing technical standards to achieve updating the contents of the page without refreshing the entire page. In this paper, Ajax asynchronous mode enhances the credibility of user experience, optimizes the transmission between the browser and the server and reduces unnecessary data transferring back and forth and bandwidth usage. Using XML packaging method achieved Ajaxs efficient operation of bulk data and made the application of Ajax more extensive. Practice shows that Ajax technology based on XML packaging can provides a flexible and fast bulk data processing function in Web development.
The Architecture Complexity Research Based on Multi-View Description
Authors: Li Gui Yan , Jia Rui Feng , Ma Zeng
Published: September 2013

the complexity of equipment simulation training system architecture is an important factor affecting the system structure design. According to the characteristics of equipment simulation training system architecture, and combined with the existing complexity analysis method, a complexity analysis method is proposed that is based on the reliability, economy, security (three indexes) .The method synthetically considers the physics view, logic view, technology view and three indexes requirements of the system architecture. Examples prove that calculation results of this method reasonably response the complexity of architecture designs.
Failure Data Analysis of Tether Net System
Authors: Chen Yong , Lin Qi
Published: September 2013

Tether-net system is such a complex area that so many technical issues proposed by it increase the difficulty of system development and also put forward higher demands for verification. It is necessary to analyze failure data before going on the research of credibility evaluation. The importance of failure data analysis is emphasized first, and hazard plotting method which is a powerful graphical approach to perform failure data analysis is described at length. Following this, the method is applied in a tether-net system to get the results of the experiment and analysis.