bluuebunny/crossref_metadata_2025 huggingface dataset:
An Improved Back-Propagation Neural Network Algorithm
Authors: Pan Hao
Published: May 2014

Based on the idea of standard back-propagation (BP) learning algorithm, an improved BP learning algorithm is presented. Three parameters are incorporated into each processing unit to enhance the output function. The improved BP learning algorithm is developed for updating the three parameters as well as the connection weights. It not only improves the learning speed, but also reduces the occurrence of local minima. Finally, the algorithm is tested on the XOR problem to verify the validity of the improved BP.
The Research on the Application of Compression Perception Technology in Mobile Telecommunication
Authors: Xiao Meng , Zhou Yun Yao
Published: May 2014

Compression perception is an emerging field which attracted considerable research interest in the past few years. Previous review restrain in limit their range to standard discrete-to – discrete measurement architectures using arrays of randomized nature and signal models which are based on standard exiguity. In the past few years, compression perception has worked in its way into some new application areas. In turn, this compels a caller look on many of the basics of the compression perception. The operator of the random arrays measurement should be took the place of more structured perception architectures that conform to the characteristics of available acquisition hardware. Generally speaking, the theme is exploiting signal and the potential of structured strategies of compression perception to appear from the math to the hardware.
Study on the Heat Treatment Process of Ultra Thick Plate of 12Cr2Mo1R Pressure Vessel Steel
Authors: Zhou Ming Xing , Xu Guang , Yang Hai Lin , Xiong Tao
Published: May 2014

The heat treatment process, normalizing plus tempering, of 150 mm-thick plate of 12Cr2Mo1R pressure vessel steel was proposed according to the results of finite element simulation and static CCT curve obtained by thermal simulation experiments. After normalizing at 910 °C for 10 minutes followed by water cooling and tempering at 650 °C for 60 minutes, the microstructure at 1/4 position along the thickness direction of the thick plate consists of bainite and all the mechanical properties meet delivery requirements.
Continuous Cooling Transformation Behavior of a Ti Addition Steel
Authors: Zhang Chen , Xu Guang , Hu Zhang Wei , Yang Hai Lin
Published: May 2014

The continuous cooling transformation (CCT) behavior of a Ti attached steel was studied through thermal simulation tests, and the influences of different cooling rates on the microstructure and transformation were investigated. The results show that the microstructure changes with the cooling rate, and the CCT curve of studied steel is plotted, which indicates that the solid-state phase transformation mainly consists of four regions. The CCT diagram made it possible to predict the microstructures of studied steel with different cooling rates.
Medical Image Compressed Sensing Reconstruction
Authors: Yan Hai Xia , Liu Yan Jun , Sun Yu Ming
Published: May 2014

In order to improve the speed of compressed sensing image reconstruction algorithm, a two step rapid gradient projection for sparse reconstruction in medical image reconstruction is proposed. in traditional gradient projection for sparse reconstruction algorithm, the searching direction is alternate between the negative gradient direction when the direction is ill, the searching speed is slow. Now we search with two step gradient projection, the speed is increased when meets the ill-condition. Compared with the original GPSR algorithm, the TSGPSR algorithm not only accelerate the speed of operation, but also improves the accuracy of the reconstruction. and exhibits higher robustness under different noise intensities.
Design of Infrared Communication System
Authors: Kang Shuai , Luo Guang Yi
Published: May 2014

Using C51 SCM, a set of simple infrared communication system has been designed through combining with the infrared devices, and infrared wireless communication has been implemented in short distance within the function. It is different with the general infrared remote controller that doesn’t use coding and decoding chip to realize the coding and decoding of the sending and receiving, but through the SCM encoding and decoding procedures to achieve the sending and receiving of infrared signal, so as to realize the communication function of infrared remote control.
Biological Communication Dynamic Model Research
Authors: Zhang Mo , Shen Hai
Published: May 2014

Biological communication behavior is in everywhere, all over the nature, biological system and human society. In simple terms, Swarm intelligence is emerging though information communication and collaboration among some dispersed and simple individuals. Inspired by biological communication behavior, aimed at understanding swarm system collective dynamics behavior, and from the point of system cybernetics, this paper study the relevant biological communication dynamic model, such as the symbiotic model, attractive-repulsive model, external effect model and the multi-population coevolution model and so on. Also introduce the rules of these models, which provide theoretical basis for designing intelligent swarm intelligent system.
Diffusion and Oxidation Wear of Superhard Cutting Tool Based on Thermodynamics
Authors: Shao Fang , Wang Yu Ting , Zou Li Jing , Wu Yan Ying , Sun Dong
Published: May 2014

Cutting temperature always highly reaches over to 1000°C when high speed machining with PCBN tools. Diffusion of tool material element may have important influence on tool wear at such high temperature, the diffusion wear and oxidation wear have become the major wear mechanism. In this paper, the rules of diffusion wear and oxidation wear for PCBN cutting tools are proposed and analyzed based on thermodynamics theory. Dissolution concentrations in typical normal workpice materials of PCBN tool material at different temperature are then calculated. Diffusion reaction rules in high temperature are developed and analyzed using Gibbs free energy criterion. The machining tests were conducted using the PCBN tools at different cutting speeds of 50, 95,100 and 180 m/min, feed of 0.1, 0.2 and depth of cut of 0.1, 0.8, 1, and 1.5 mm respectively on PUMA300LM numerically-controlled lathe. It was found that the theoretical results were uniform with the experimental data; the results will provide useful references for tool material design and selection.
A Method of Extracting Picture in Memory
Authors: Chen Long , Li Ya Hui
Published: May 2014

Memory forensics can provide crucial evidence or further investigation clues, it also has a direct connection with field investigation. Image is a common and intuitive way to express information, and has direct effect as evidence. This article analyzes the characteristics of common image formats (BMP, PNG, JPEG, GIF) data stored in the memory and summarizes some rules of extracting the picture data. On this basis, the article proposed a method of extracting picture data from the memory image. The experimental results show that picture data can be accurately recovered from the image.
The Research and Application of Learning Program in Adaptive Learning System
Authors: Liu Chang Ming , Sun Yan Jun
Published: May 2014

Nowadays, to achieve quality education and lifelong education has become the requirements of the educational system, people pay more attention to the improvement of people's overall quality and the development of personality characteristics in education. Although the traditional classroom teaching model is changing to personalized education gradually, there is little progress of the personalized teaching as the constraints of the traditional pattern whole class teaching. With the computer technology and network technology application development, the emergence of adaptive learning systems to enable people to see the realization of personalized education and the dawn of life-long education. Adaptive learning system, through the design knowledge base, rule base and the learner characteristics of the teaching library, in order to achieve for the learner characteristics of personalized teaching. However, the ever-changing personality characteristics of learners to achieve a true highly adaptive learning system has not yet achieved, Therefore, the study personality characteristics of learners, Designed to guide the learners self-learning law program and in accordance with the teaching process personality characteristics of learners is to improve the adaptive learning system key.
Comparing of Cloud Computing and Grid Computing
Authors: Sun Yong , Yang Wei Qing , Xue Ji Rong , Tian Jian Hui , Li Wen Wei
Published: May 2014

As the current hot technology, many large companies have launched their own cloud computing projects, and the ways to realize each project is different, and ultimately lead to a fragmented state to explain the concept of cloud computing today. Almost all manufacturers do not deny that cloud computing is follow-up and development of grid computing, but their philosophy is different. This article aims to explore the similarities and differences between grid computing and cloud computing, from features, technology and operation costs, and to explore the solution of technical problems related to outstanding solutions through grid technology in the development of cloud computing.
H∞ Robust Control for Networked Control System with Short Time-Delay
Authors: Qian Ping , Wang Wen Rui , Li Xue Qiang , Ye Yin Zhong
Published: May 2014

For a kind of networked control systems with short time-delay, establish discrete time-invariant system model. Construct the Lyapunov function based on the Lyapunov asymptotic stability principle. Using Linear Matrix Inequalities method given the sufficient condition of H∞ robust controller design method of closed-loop feedback control systems. Matlab simulation indicates the effectiveness and correctness of the controller design.
Design Research of Electronic Journal System Based on ASP.NET
Authors: Yuan Jiu Gen , Li Zhi Guo , Xing Ruo Nan
Published: May 2014

The electronic magazine is an emerging information load bearing way, which has brought the brand-new network reading experience to us. It depends on the Internet platform to issue regularly. Users may browse and subscribe it at any time. This electronic magazine system is based on the Asp.net technology and it takes SQL Server as the database development tools. This article introduces the concept of electronic magazine system firstly, and analyzes the electronic magazine system from the technical feasibility and system demanding. Finally it designs overall from the front desk display, the backstage management module function and the database design. So we developed electron magazine system which has function, targeted and simple operation.
The Security Analysis of Forward-Secure Group Blind Signature Scheme Based on the Chinese Remainder Theorem
Authors: Gao Wei
Published: May 2014

The paper analyzes a forward-secure group blind signature scheme based on the Chinese remainder theorem in cryptographic method, and points out that the attackers can tamper with the parameters of signature algorithm easily, which causes that the attackers revoke legal group members randomly .At the same time, the article proves the scheme does not have the feature of the blind signature .At last the author comes to a conclusion that the scheme is not safe.
The Technique of Recycling Alkaline Zincate Zinc Plating Waste Liquid in Laboratory
Authors: Li Da Yong , Shi Lei
Published: May 2014

It introduces a kind of technique method that recycling alkaline zincate zinc plating waste liquid in laboratory, involving the fields in electroplating and comprehensive utilization of waste liquid. This method is introduced that with adopting materials such as HCl, NaOH, H2O2, activated carbon, dithiocarbamate diethyl ester, chloroform, ammonia and baking furnace, incinerator, pH test paper, for treatment of the waste liquid through some processes like neutralization, filtration, chemistry precipitation, extraction, distillation, burning, so that some recycled substances in it can be reused such as distilled water, zinc oxide, and as to those can not be recycled, carry on the harmlessization handle by incineration or deep bury.
Research on Security and Privacy Protection of Database
Authors: Wang Pei
Published: May 2014

As the wide application of computer and information sharing, database security and privacy of data become a research hotspot. First this paper analyzes the security threats the database face, from internal personnel errors, configuration, social engineering, and not patched vulnerabilities four aspects. And then it expounds database system security technologies that are database authentication, access control and audit. Finally, this paper introduces the privacy protection of the database. It hopes to provide the certain reference significance in improving the database security and privacy protection technology.
The Theoretical Prediction of Radioactive Aerosol Diffusion Based on Instantaneous Point Source Model
Authors: Liu Fang , Cheng Xiao Lei
Published: May 2014

The theoretical prediction of radioactive aerosol diffusion based on the instantaneous point source model is investigated, considering the effects of emission heights, ground reflection, dry deposition, wet deposition, radioactive decay and other factors based on the Gaussian diffusion model. Numerical simulations are performed to calculate the concentration distribution of the radioactive aerosol and to determine the evacuation zone. Simulation results show that the atmospheric stability tends to be the key factor of the radioactive aerosol distribution.
The Application of Neural Network Technology in the Fundus Angiography Image Segmentation
Authors: Cui Dong , Liu Min Min , Jiao Qing , Hu Lei , Chen Di , Guo Yong Xin
Published: May 2014

The digital images as well as the data obtained by the fundus fluorescence angiography (FFA) can reflect the structure of retinal vessels, the hemodynamic changes, the vascular pathological physical changes and the pathological changes of other related structures, which have been widely applied in the differential diagnosis of the retina, the choroid and the optic nerve disease. According to the characteristics of FFA images, the BP neural network algorithm and the genetic neural network algorithm have been respectively employed to segment and contrast the lesion areas in fundus angiography vascular images as well as the fundus angiography images. Then the clinicians can get the more accurate measurement data of lesion areas and observe the more subtle vascular changes, which can provide an important basis for the treatment of the heart, the brain vascular system and the diabetes.
A Feature-Based Automatic Dimension Marking Method for In-Process Models
Authors: Shao Li , Zhang Shu Sheng , Zhou Chao , Bai Xiao Liang
Published: May 2014

To reduce the workload for marking the dimensions of in-process models, a method of dimension marking based on manufacturing features for in-process model is proposed. Firstly, the dimension information is extracted from model based definition (MBD) models; secondly, the feature dimension chains are constructed according to the feature location dimension and the process data, when the process data and design data are not coincided with each other; thirdly, the process dimension tolerances are calculated by using the increasing links and the decreasing links of the MBD. In experimental section, an example was given to illustrate the validity and effectiveness of the proposed method.
Study on the Discrimination Method of Driving Safety States Based on BP Neural Network
Authors: Cao Feng Ping
Published: May 2014

In order to estimating the state of driving safety and reducing accidents, a discrimination method of driving safety states based on BP neural network was presented in the paper. Firstly, the influencing factors on the vehicle driving safety were analyzed, and ten main factors that affected the driving safety of vehicles were confirmed, which constitute the safety assessment index system for vehicle driving. Then the discrimination model of driving safety states based on BP neural network was established, and inputs and outputs for the neurons were determined. At last, the input data for neurons were acquired on the basic of the main evaluation indexes of vehicle driving safety, and these data were used to train the neural network. The training result conform to expectations of the training requires.
Search on Ignition Interference Prevention of Vehicle Safety System
Authors: Zhou Wei , Dai Shi Shun , Dong Xuan , Ren Chun Xiao
Published: May 2014

Basic on the problem that the electromagnetic environment in vehicles which formed at the moment of ignition will cause interference to the stability and reliability of vehicle safety system, the paper takes vehicle fire protection system as the research object, and analyzes the interference mechanism and harmfulness through the simulation experiments. Finally uses the related software design and some prevention measures for electromagnetic interference such as shielding, grounding to protect the system, then through experiment to verify that it’s scientific and reasonable.
The Technology Study of BLDCM Speeding on Different PWM Mode
Authors: Jun Rong
Published: May 2014

For the PWM mode of BLDCM speeding, the paper presents a detailed analysis on five PWM modulations, and presents the six switches’ working waveforms, the motor armature voltage and current waveforms on different PWM modulations. The simulation results show that HPWM-LON mode can significantly reduce motor armature voltage harmonic component, and can create good condition for the motor running. So we choose the right speeding way of BLDCM which has very important practical significance for industrial and agricultural production.
Sensitive Cloud Data Deduplication with Data Dynamics
Authors: Wang Yan , Liu Ying , Li Chao Ling
Published: May 2014

To solve the confliction of data encryption and deduplication, a hMAC-Dedup scheme based on homomorphic MAC is proposed. In the scheme, every file is encrypted by the block level encryption and a tag is generated from each encrypted block. In the PoW (Proofs of oWnership) protocol, homomorphic MAC is used to check whether the file to store is real, by operating on the file’s encrypted blocks and pre-computed tags. The hMAC-Dedup can avoid the security shortcomings brought by hash-as-a-proof and provide encryption protection. It is also extended to support data dynamics, which includes block modification, insertion and deletion.
Application of Computer Design of Nearly Linear Numerical Analysis Model in Research Quality
Authors: Wang Chun Li
Published: May 2014

In this paper we use MATLAB and VB to establish computer analysis system between the students' psychological quality and employment competition. Based on optimal solution constraint conditions and the clustering center boundary value of the student ideological quality maturity model, we establish the model of student ideological quality maturity. We introduce the numerical calculation into nearly linear equation of students' employment advantage, and obtain the advantage index of employment. This paper we use the MATLAB software to import the student ideological quality indexes, and get the students ideological quality maturity index by analysis and calculation. The maturity is displayed by GUI using VB visual. It provides a theoretical reference for the quality of the students’ ideological education.
Architectural Design Using AutoCad and Sketchup
Authors: Ma Yun , Zhu Shan Hong
Published: May 2014

Architectural design is a creative work, the final results of it is image and visually expressed in the form of drawings. AutoCad technology and Sketchup software combined with architecture design are the combination of computer application technology, especially the inevitable outcome of the development of computer graphics technology. Usage of the two softwares is not only able to design construction drawing with specification, beautiful buildings, and can effectively help designers improving the design level and work efficiently, this is the manual drawing. Mastering the AutoCad and SketchUp architectural drawings in other words is to have the advanced and standard of architectural design language tools.
A Study on the WAN Network Traffic Monitoring
Authors: Ren Hao Li , Liang Xiao Peng , Peng Kong Yang
Published: May 2014

Network traffic monitoring, analysis, and anomaly detection have become a very active research area in the networking community over the past few years. Traffic monitoring and analysis is essential in order to more effectively troubleshoot and resolve issues when they occur, so as to not bring network services to a stand still for extended periods of time. This paper discusses router based monitoring techniques in the WAN traffic monitoring. It gives an overview of the two most widely used router based network monitoring tools available (SNMP, cisco netflow), and provides an example about the netflow technology.
Research on Integrated Support Demand for a Certain Type of Equipment
Authors: Song Xiang Jun , Li Wan Ling
Published: May 2014

The main content of the integrated support for equipment was analyzed in this paper, including all task of for equipment in each stage of life cycle, the establishment for demand of supportability and the planning for support etc. Especially the content of equipment integrated support in the stage of demonstration was expounded, and it was explained combining with a certain researching equipment.
Diameters Analysis of Europium-Containing Micelles by Dynamic Light Scattering
Authors: Li Zhao Ye , Xue Zhao Jun , Kong Li Jun , He Jin
Published: May 2014

Diameters of self-assembled micelles were discussed carefully in this paper. When block copolymer was crossed by Eu (III) ions, they could be assembled into micelles. Then diameters of micelles increased with increasing molar ratios of Phen.
Network Construction of University Physical Education Platform
Authors: Qiu Yu Hua , Huang Jing , Luo Xin Jian
Published: May 2014

The present situation of our university physical education network construction of was investigated by adopting the method of expert interview, literature review and data investigation. The results showed that the development of network construction of university physical education is too slow to meet the demand of education development and students’ study. And this work analyzed the significance of developing network education and discussed the network course design from the aspects of the basic theory, structure of network courses, design and development of the technical route, the operating environment and etc. The result showed that the network education of university physical course is a supplement and development on the traditional educational methods, which can promote the development of our physical education actively.
New Trend of Serious Game: Video Game for Cognitive Capability Training of the Aged
Authors: Jiang Rui , Shi Min Yong
Published: May 2014

As an experience digital game, serious game takes training, education or treatment as its purposes, social learning, identity projection and other theories as development bases. It is featured with scientificity, multi-modal, narrative and exploration, and has been widely applied in such fields as military, education and healthcare, etc. In recent years, with increasing number of countries confronted with aging population problem, many researchers gradually shift attention to cognitive capacity training of the elderly by virtue of serious game. The article intends to discuss the research situation of video game for the aged as well as development direction of Chinese video game for the aged, by elaborating video game features for the aged and its significant advantages of prevention of Alzheimer’s disease.
Grasp the Moral Carrier to Achieve Moral Devotion of Small and Medium-Sized Enterprise
Authors: Sha Yan Fei
Published: May 2014

The ethics into their own development needs of SMEs, but also conform to the requirements of the times.Enterprises with material carriers, as the moral factors of production into the operation and management activities in order to obtain the added value of moral values, and thus achieve sustainable development.
Influences of Concrete Creep and Temperature Deformation on Vehilce Travelling across Bridge
Authors: Wang Xiao Ping
Published: May 2014

When long-span pre-stressed concrete bridges are subjected to concrete creep and temperature load , bridge deck deformation will be aroused. Then the additional track irregularity will be generated. It brings about the result that the dynamic response of train-track-bridge system will be influenced. In this paper, with the train-track-bridge coupling vibration theory, a (90+180+90) m continuous beam-arch combination bridge located on a certain passenger line is analysised comparatively, by considering the effect of concrete creep and temperature deformation. The results show that, the track irregularity caused by the concrete creep and temperature deformation influence the wheel unloading rate and the vertical accelararion of the train so obviously with the speed increasing. It can be concluded that the track irregularity need to be considered, especially for high-speed trains.
Study on Emergency Evacuation of Plant Area of a Chemical Enterprise in Liquid Chlorine Leakage Accident
Authors: Zhao Jiang Ping , Hu A Jin
Published: May 2014

Based on the field investigation of a chemical plant, its plant area was selected as the simulated domain of emergency evacuation. All of staff was considered as the research objects and a questionnaire survey was conducted on them. Then, the survey results were analyzed statistically by SPSS13.0, in light of which the Building EXODUS was used to simulate the emergency evacuation. The results showed that there are 12 factors related to psychological and behavioral response when staff is caught in a liquid chlorine leakage accident. In light of relevancy, those factors are arranged as whether the staff has known the storage location or properties of the chemicals, gender, whether they know the refuge area location, etc. Besides, the poisoning and mortality rate reached 21% during the process of evacuation.
The Research of Culture Similarity and Innovation in Virtual Enterprise Based on Structural Equation Model
Authors: Guan Yu Juan
Published: May 2014

This paper presents a Structural Equation Model (SEM), focuses on the moderating effect of culture similarity on the knowledge sharing and innovation in Virtual Enterprise (VE). Data are collected in some small and medium-sized enterprises. Totally 227 valid questionnaires were collected, and use Smart PLS for statistical analysis. Empirical results show that the effect of the use of IT on knowledge sharing increases with higher culture similarity; meanwhile, the effect of knowledge sharing on innovation increases too.
Research and Practice in Training Model of Innovative Talents in Electronic Information Specialty
Authors: Liu Xian De , Liu Xiao Ming , Wu Xiu Qin
Published: May 2014

In this paper, concerning the current situation of electronic and information–oriented specialty, and combining the construction experiences of electronic information science and technology specialty construction in Northeast Petroleum University, we have summarized the curriculum system of innovative talents cultivation. And aiming at cultivating innovation ability of the students, we have proposed implementation scheme of practical teaching and a series of measures to guarantee the training quality of the students.
Putting-forward of the problems
The Major Challenges and Countermeasures to Carry out EHR
Authors: Zhang Wei Mei
Published: May 2014

With the development of information technology, as one of the important tools of enhancing human resources management, EHR has widely been used by many enterprises. The author systematically talks about major issues and challenges encountered in implemention of EHR in enerpreises. And the author advances some countermeasures as follows: to strive for understanding and full support of the major superior leaders; to improve relevant system and information structure of enterprises; to establish scientific procedural documents; not solely depending on service providers; to ensure security of the system.
The Design and Realization of University Library Personalized Service Based on Date-Mining Technology
Authors: Zhai Zhi Ping
Published: May 2014

This paper briefly describes the application of data mining technology on the personalized service in university library, and illustrate the importance of data mining for college library development through the analysis of its application in the library work in universities.
Application of Virtual Reality Technology in High Vocational Education
Authors: Zhao Hui Ying , Liu You Ming , Zhang Li , Shi Jian Hong , Li Ting Jun
Published: May 2014

Introduces 3D Max model making process and VRP software utilization in making virtual field shot system, through which it can roam each shot by arbitrary selection path. The virtual reality work of "Years as Song" is created by virtual reality technology showing creation method.
Application of Internet of Things in Military Equipment Logistics
Authors: Liang Feng , Bai Hai Wei , Liu Guo Dong
Published: May 2014

In 21centry, the Internet of Things is a study focus of information technology and its information academic industry. It would bring a series of innovation to traditional military equipment logistics technology and mode. Based on the application of the Internet of Things in military equipment logistics, this article explores the Internet of Things based on Radio Frequency Identification and analyzes its application actualities. Speeding up the application of the Internet of Things in military equipment logistics is important to the realization of visual military support and military informationization construction.
Model for Assigning Project Members to Maximize Personality Balance
Authors: Yeh Jeong Yau , Wei Chiu Chi
Published: May 2014

Global competition has forced enterprises to constantly innovate business administration and product services, in order to dominate markets and to compete effectively. However, the formulation and execution of strategy and the development of products and services rely largely on a concrete management system that can efficiently produce attractive products within the shortest period of time. Project management is an effective way of achieving these objectives. A temporary task group is formed by borrowing personnel from related divisions, without altering the original organizational structure and adding extra workforce. Various team-building activities are used to quickly transform this group of people into a solid project team and to accomplish the specified project objectives as soon as possible. Traditional assignment of project personnel is based primarily on work experiences and expertise and ignores the role that personalities play in the success of the project. Therefore, this study develops a project assignment quantitative model that maximizes the team’s personality balance by selecting the most suitable personnel from a group of qualified capable candidates, to increase the possibility of success for the project. The results of the example show that the model developed can help a project manager to form a project team in which the members’ personalities are highly balanced, to maximize the project performance.
A Simulation Study of Bearing Capacity of Bored Piles in Jinghe Bridge Based on ANSYS
Authors: Xu Chao , Li Yang
Published: May 2014

Using the Drucker-Prager elastoplastic constitutive model to describe the nonlinear deformation behavior of soil and simulating step loading on static test piles by ANSYS model which only consider linear elastic compression of pile body. By comparing ANASYS simulation value and the measured values of pile’s axial force and side friction, it shows that the greater the load ratio which transfer through the bottom of the pile, the pile-soil stiffness ratio increased; when vertical load is small, analysis results of elastic theory are fairly accurate. ANASYS simulation results have high accuracy when vertical load is bigger.
Experimental Study on Sandstone Freezing-Thawing Damage Properties under Condition of Water Chemistry
Authors: Deng Hong Wei , Dong Chun Fang , Li Jie Lin , Zhou Ke Ping , Tian Wei Gang , Zhang Jian
Published: May 2014

For the purpose of researching the freezing-thawing cycle physical mechanics properties of sandstone in various chemical solutions, taking the red sandstones from Shandong as the example, freezing-thawing cycles experiments under the condition of H2SO4solution (pH≈1.5), NaOH solution (pH≈12.5), NaCl solution (pH≈7, mass fraction is 4%) and water were conducted. The nuclear magnetic resonance (NMR) technique was used to test the porosity of rock samples after freezing-thawing cycles. Brazilian splitting test was also conducted to test the samples with different times of freezing-thawing cycles and soaking solutions. Results show that the quality change of samples in various solutions is different. The mass of sample in water increased, however, the mass change of the sample in other three solutions showed a firstly increasing and then decreasing tendency. The porosity distribution in rock changed obviously after different time’s freezing-thawing cycles. After 30 times freezing-thawing cycles, the porosity in H2SO4solution, NaOH solution, NaCl solution and water has increased by 151.1%, 85.443%, 39.388%, and 17.976% respectively. With the increase of freezing-thawing cycle’s times, tensile strength of the rock reduced, but the damage properties were different in various solutions. The research can provide some mechanical parameters basis to physical mechanics properties of sandstones.
Analysis and Optimization of Metal to Composite Joints for Marine Structures
Authors: Li Xiao Wen , Li Ping , Lin Zhuang , Yang Dong Mei
Published: May 2014

Composite to metal joints as important components of marine structures are gradually found in the marine industry. The purpose of this study is to investigate mechanical performance and optimization method of the composite sandwich to steel joints. The main emphasis was placed on the mechanical properties of a hybrid joint between a sandwich glass fibre reinforced plastic superstructure and a steel main hull. Based on the experiments of a base joint, a new finite element method was used to analyze a series of joints. The optimized joint was presented due to reducing weight and enhancing the mechanical performance. The numerical predictions of the base hybrid joint showed a very good correlation with the experiment results, which validated the reliability of the new finite element method. The strength of the optimized joint was also evaluated by finite element method. The result is similar to the base joint. And there is no additional stress concentration in weak parts. The optimized joint has 30% lower weight than the base joint, and the stress is only about 5% ~ 56% of the base one. The results of the present work imply that the change of geometric parameter is an effective method to improve the performance of the metal to composite joint.
A Temporal-Spatial Simulation and Dynamic Regulation System of Water Quality on Sudden Water Pollution Accidents
Authors: Zhang Bo , Yang Shao Hui , Hao Qian Ting , Yu Chao Hui
Published: May 2014

We develop a novel system for temporal-spatial simulation and dynamic regulation of water quality in water pollution accidents by introducing GIS to traditional one-dimensional system dynamics water quality model. We apply this system to the Songhua River water pollution accident which happened in 2005 and achieve good performance in simulating pollution zone migration and transformation in temporal and spatial dimensions.
A Method Based on Remote Sensing to Look for Grey Haze Emission Source Area
Authors: Zhao Chun Lei , Fan Jun Hong , Dong Hang Yu , Li Jiang Hao
Published: May 2014

In this study, we try to find the possible emission source area of the grey haze through comparing the ground observation station weather data and remote sensing data for the grey haze process that Beijing-Tianjin-Hebei region experienced in November the 8-14, 2013 in which the degree of contamination range from severe to mild to severe. The result demonstrates that before the invasion of the cold air , the coverage of the grey haze reach its maximum where south central areas of Beijing-Tianjin-Hebei is more severer compared with the south central and peri-urban areas of Hebei province. For the greater intensity grey haze companied by the wind convergence in the surface boundary layer, the result of the MODIS satellite monitoring is consistent with the meteorological station observation. Whereas MODIS satellite monitoring method could make up the shortfall of the meteorological station for the mild grey haze in certain degree. After the cold air, haze primary development area is very obvious, and the starting position of haze in the role of diffusion by the wind is also here, based on this can lock the grey haze emission source area and make concrete origination by using the high resolution satellite. The precise positioning could provide the scientific basis for the pertinent management on pollution control for the local government and relevant authority.
An Overview with Applications to Graphene-Based Composites
Authors: Song Na , Chen Dan , Luo Ling Ling , Chen Jian Rong
Published: May 2014

In recent years, graphene has been increasingly studied due to its good performance, low prices and accessible materials in recent years. In addition, the scaled-up and reliable production of graphene derivatives provides a large range of opportunity to synthesize graphene-based functional materials for various applications. This paper summarizes the graphene-based composites in various fields of applications.
Effects of Motherwort Total Alkaloids on Prostatitis Model of Mice
Authors: Miao Ming San , Guo Lin , Tian Shuo
Published: May 2014

Abstract Objective: To investigate the effect of Motherwort total alkaloids on prostatitis model of mice.Methods:Different groups of mice for Motherwort total alkaloids are given high,medium,low suspension.Observe the number of white blood cells , lecithin corpuscle density groups in prostatic fluid and the morphological changes of prostate,testis, epididymis.Results:Compared with the model group, the Motherwort total alkaloidss high, medium dose group can significantly reduce the number of white blood cells of prostate in mice model of prostatitis and increase lecithin corpuscle number (P<0.01); the Motherwort total alkaloidss high dose group significantly reduce the pathological changes of prostatitis (P<0.01); the Motherwort total alkaloidss medium dose group significantly reduce the pathological changes of prostatitis (P<0.05). the Motherwort total alkaloidss high dose group significantly reduce the pathological changes of testis (P<0.05)and it can significantly reduce the pathological changes of the epididymis (P<0.01).Conclusion:Motherwort total alkaloids has a therapeutic effect on prostatitis model of mice .
3,4,5-Trihydroxybenzoic Acid Triggered Oxidative Stress in 95-D Lung Cancer Cell Line
Authors: Xi Yan Li , Wu Xiang Qun , Yu Jie , Xu Wei Guo , Zhao Tong , Wang Shu Ran , Niu Feng Lan , Ma Hong Bo
Published: May 2014

It is a good therapeutic method that add exogenous ROS to trigger oxidative stress causing death of cancer cells. In the present study, we investigated the inhibitory effects of 3,4,5-trihydroxybenzoic acid (TBA), a polyhydroxyphenolic compound, on high metastatic human lung cancer cell line (95-D) based on inducing reactive oxygen species (ROS). The experimentsin vitroshowed that 95-D cell viability was inhibited by various amounts of TBA and death was induced in a dose-dependent manner. The possible mechanism was that TBA can induce cell death by decreasing mitochondrial membrane potential (MMP;ΔΨm) and increasing hydrogen peroxide (H2O2) level. These results imply that TBA efficiently induces death in 95-D lung cancer cells and that TBA exerts cytotoxicity on cancer cells by its pro-oxidative activity.
Study on the Mechanism of Led Incapacitator Device Based on the Variable Frequency and Variable Waves
Authors: Wei Dai Qiang , Zhan Ren Jun
Published: May 2014

In the analysis of the research studied by the domestic and foreign about led incapacitator non-lethal weapons, it focuses on the studies about the mechanism of the non-lethal effects of led incapacitator, which is based on different frequencies and different wavelengths of light. When the frequency of the light is α, it can cause the brain's "rhythm synchronization" effect, causing further increased intracranial pressure, resulting in non-lethal effects; when it converts the wavelength of light, particularly when it uses red, green and blue light, it will stimulate the hypothalamus pineal gland to produce a variety of hormones, which can regulate the body's physiological function, leading to further non-lethal effects. Through the research about the led incapacitator in non-lethal effects, it can offer the important reference significance for the further application.
Design and Implementation of Intelligent Controller Based on CAN Bus of Charge and Discharge Machine for Lead-Acid Battery
Authors: Zhang Hua , Mu Hai Wei , Han Jian , Zhang Yong
Published: May 2014

On the base of understanding the working principles of the whole system, this paper introduces the overall design scheme of intelligent controller based on CAN bus of charge and discharge machine for lead-acid battery. The principles of each unit circuit are analyzed in detail. Both current stabilizing precision and voltage stabilizing precision can satisfy the design requirements of the system. Experiment results show that hardware and software design of the system was reasonable.
Design of Single-Axis Control System Based on FM354
Authors: Qiu Cong , He Wang Yong , Tian Bo
Published: May 2014

AC servo system has been widely used in many fields with its high performance and the fast development of intelligent control strategy. Targeted at the single-axis motion control applications in industrial automation, a kind of single-axis motion control system, based on FM354 controlled by S7-300 PLC, is designed. The system consists of three to the position, speed and current closed-loop control to achieve precise position control. The position loop is implemented by FM354. The speed loop and current loop are encapsulated in the servo driver. Through monitoring and comparing the dynamic performance with traditional systems, it can find out the bench runs smoothly and positioning accurately, perfectly meeting the technological and application requirements. It also can be applied to a variety of occasions and used for multi-axis extension.
Emulation Calculation on Damage Probability of Air Defense Rockets Intercepting Low Attitude Targets
Authors: Wei Chuan Ting , Chen Dong , Zong Jun Jun
Published: May 2014

Aiming at the problem of certain type air defense cluster rockets to intercept low-altitude targets, this paper discuses vulnerability and damage mechanism of a typical cruise missile target, and establishes a simulation analysis algorithms based on Monte Carlo Method with the test error data, which achieves emulation calculation of damage probability of air defense rockets.
Environmental Art Design of Subway Station
Authors: Zhang Xiao Ke
Published: May 2014

This paper presents the city subway system environment space requirements and principles of art and design.Then through the study of urban design elements, space systems metro subway environmental art design elements and methods to make specific implementation strategies for Environmental Art Space City of subway system design.
Failure Model Research of Power HBTs
Authors: Yang Jing Wei , Xu Meng Meng
Published: May 2014

Heterojunction bipolar transistors (HBTs) are playing an important role in microwave and power applications. When HBTs operated at high power, the power dissipation and self-heating effects will enable the generation of electrical properties in the transistor failure. The failure experiment system of microwave power HBTs was established. Based on this system, the changes of electrical parameters of HBTs in deferent stress, such as Gummel plots, base current various different base-emitter voltage and base-collector voltage, were measured and analyzed. At the same time, the failure of base current of SiGe HBTs under the condition of FC, SC and thermal stress are studied respectively. It was found that ΔIBis the sensitive parameter of electrical and thermal stress. Based on this reason, we presented the failure model of IB. This model could explain the experiment phenomenon successfully, which is very important and useful for applications of microwave power analog IC’s.
Study on Improved Fuzzy Semi-Active Control for the Cable-stayed with MR Damper by Finite Element Simulation
Authors: Zhang Zheng Xin , Liu Qian Hui
Published: May 2014

An improved fuzzy semi-active control method forparametric vibration of the cable-stayed with MR damper was proposed. The parametervibration control of the cable M22 and the cable M13 of the Hongshuihecable-stayed Bridge was studied. The results show that the effect of theimproved fuzzy semi-active control strategy was better than that of the fuzzysemi-active control strategy. In addition, the proposed fuzzy semi-activecontrol strategy does not need to debug the scaling factor of input variablesand output variables and the MR damper required lower voltages. Therefore，theproposed method makes the fuzzy control more intelligent.
The Contact Stress Analysis on Involute Slope Modification of Asymmetric Spur Gear
Authors: Deng Xiao He , Cai Jing
Published: May 2014

The paper established an involute slope modification model of asymmetric spur gear pair. The characteristic of the involute slope modification was analyzed by changing different modification parameters. The contact stresses of asymmetric spur gear under different modification parameters were compared. Research results showed that the modification parameters influence the meshing performance of gear pairs.
Process Optimization for Pedestal Parts in Wire Crimper
Authors: Chen Yan Fang
Published: May 2014

Aimed at the technological difficulties such as low production efficiency and low product precision that “pedestal parts in wire crimper” in certain enterprise encounter in the actual processing steps, after making comparison with beat optimization method, the paper takes the measure of fixture optimization design to improve production efficiency, and then utilizes orthogonal experiment method to optimize cutting parameters in cutter and improve the surface quality of products. Moreover, UGCAM is employed to make simulation verification and then production practice is conducted thanks to the data and optimization scheme, so as to obtain the qualified products and improve the production efficiency, thus providing reference frame for how to improve production efficiency and surface quality in small parts with complicated surface through process optimization.
Measuring the W-J Parameter of Graphite via a Pressure-Jump Method
Authors: Chen Li Ying , Liu Xiu Ru , He Zhu , Hong Shi Ming
Published: May 2014

We have established the isentropic compression curve T(P) and educed the W-J parameter of Graphite. A series of rapid compression processes were conducted with Graphite up to 4.58GPa. Pressure jumps and induced temperature increasing were recorded. The temperature change was corrected to exhibit an adiabatic condition. The T(P) curve was fitted with maximum levels of the pressure and temperature, and the W-J parameters was determined by investigating its dependence on temperature and pressure. The results showed that the experimentally measured W-J parameters are increased with increasing pressure.