bluuebunny/crossref_metadata_2025 huggingface dataset:
Study on Performance Measurement of Logistics Service Providers
Authors: Li Yan , Li Hong Xia
Published: July 2011

This article identifies strategic logistics resources acquired and bundled by logistics service providers (LSPs) to achieve competitive advantage. Drawing on the resource-based view (RBV) of the firm, this study empirically examines if there exist different types of logistics service providers (LSPs), and whether the types differ in service performance. Results show that all LSPs have been acquiring physical, human, information, knowledge and relational resources and then bundling them together in various specific manners to create inimitable and firm specific capabilities. The results of this study can be used in a Pareto sense of focusing on a few vital factors that can enhance firm performance.
Hybrid Decoding Algorithm for LDPC Codes with Circles
Authors: Hu Li Shuang , Liu Ming Shan , Zhou Yuan , Sun Yang
Published: July 2011

At present, Low-Density Parity-Check (LDPC) codes widely used in many fields of communications have the best performance of all the Error Correcting Codes (ECC). This paper mainly studies the decoding algorithms of LDPC. It proposes an improved algorithm which is named Check-Variable nodes Hybrid(CVH) algorithm on the basis of the existing algorithms. The CVH algorithm can reduce the computational complexity during the check-node update while overcome with the correlation between the variable-node news in a code with circles. As well as, comparing with the original algorithms the performance of the new one saves 0.1 and 0.3 dB than Log-likelihood Ratios (LLR) Belief Propagation (BP) and BP - based algorithms under Additive White Gaussian Noise (AWGN) channel when the Bit Error Rate (BER) falls to through the simulation. This point shows that this algorithm can increase the decoding performance and reduce the error rate effectively.
Regression Analysis on the Evaluation Index for Undergraduate's Grades in C Language
Authors: Jie Quan
Published: July 2011

In order for undergraduates to master basic skills of computer technology, the grades in C language be evaluated as the important indicator of the level of a college computer basic education. This paper exploits the data from a cohort of the Jianghan University undergraduates to explore the extent to which the impacts of the evaluation index are specific to grades in C language. Using regression techniques, the paper tries to provide some references for colleges to improve the basic education of computer.
Study of Computer Aided History Matching Technology
Authors: An Yan Ming , He Lian Qin , Zhao Guo Zhong , An Ming Fei , Zhen Yue
Published: July 2011

On the basic of studying the present technical situation of home and abroad about computer aided History Matching of the reservoir numerical simulation and digesting, absorbing technology, we studied and optimized highly effective algorithm fit for the aided History Matching. At the same time, we designed the software interface and frame and function module, developed the independent aided History Matching software named CAPHE, thus formed aided history methods suitable for our independent reservoir simulator-PBRS. By using of the software in practical some oil simulation blocks, CAPHE can significantly increase History Matching efficiency in the reservoir simulation.
Design of PDM Multi-Version Management Model Based on Polychromatic Sets Theory
Authors: Chen Ying , Liu Yuan Ning , Liu Jing , He Fei
Published: July 2011

Through analysis of the current version of relationship models, the paper presents the short points of them and develops a new PDM multi-version management model based on the theory of polychromatic sets with the concept and method of the theory introduced. This new PDM multi-version management model uses the element of polychromatic sets to represent the version of a document, a uniform color to represent the integrated attribute of object, and individual color to represent the property information of an object version respectively. Considering adjacent versions have too many identical contents, this new model introduces a method on difference information to reduce the storage space of multi-versions. Finally, the arithmetic operators of the version management model of PDM were presented through a related case.
The Emulation System of Medical Treatment Process on Hospital Ship
Authors: Luo Jing , Qian Yang Ming , Tian Li Li , Li Huai Yong
Published: July 2011

With current status of medical staffing and healthcare resources, identifying the issues in the process of treatment with hospital ship receiving and delivering mass casualty is key to more utilize the existing health care resources so as to achieve more effective medical treatment at sea. The method based on Queuing Theory is employed to establish systematic model for the medical treatment process on hospital ships. It has integrated the available healthcare resources into casualty variations and set up a systematic simulation model. Through the study of above process, it can realize visual display of process data and statistic analysis, which allows for obtaining various indicators and rescue process data related to the actual rescue ability on hospital ships and identifying the key bottlenecks during the rescue. The system can flexibly meet the needs of different conditions and can provide basis for the medical resource allocation and process optimization of hospital ship. It also offers new technical means and methods for resolving complicated issues through quantitative research.
Research of Grid Resource Discovery Mechanism Based on P2P
Authors: Chen Lei
Published: July 2011

To solve the Grid resource discovery framework problem, this paper proposes the resource discovery mechanism based on Peer-to-Peer (P2P). The mechanism introduces the concept of super-node (SN) and virtual organization (VO), which combines both the advantage of decentralized and centralized resource discovery, and makes up a layered resource management model: SN manages user and storages resource information by MDS(Meta Data Service) mechanism in the VO; a P2P virtual level is composed of a large amount of peer service (PS) among VOs, which utilizes the querying and transmitting policy based on historical information and control the diffusion algorithm in resource discovery mechanism. And the simulation shows that the algorithm can find the most suitable resources and improve resource discovery efficiency.
Self-Adaptive and Automatic Program Design and Application in Vending Machine
Authors: Huang Yun Long , Zhu Qiu Qin , Yu Shi Ming
Published: July 2011

Program faults are usually reported through return-value or emergency. But, when they emergence in the state-orient model, how to make the program return to the fault point’s state and which further corresponding actions should be taken, merely by using the simple method-report or reset, can’t define the return-value or emergency. In order to process the fault automatically, this article presents an automatic program with thoughts of combined coding and state redundant design, and proposes its frame model and algorithm. This model decreases faults of state-switch and increases capability of fault-restore. At last, parts of the results are applied to a vending machine project and the tests show its satisfaction.
The Composition of Digital Wushu Instruction Court
Authors: Zhu Dong
Published: July 2011

Hard to learn and easy to forget are real problems in Wushu practice. Digital Wushu instruction court as the computer assisted technology increases alternative teaching method in Wushu teaching activities. Digital Wushu instruction court includes hardware system and software system. Hard ware is mainly composed by digital floor, digital periphery, digital terminal and communication platform. Software includes picture, video, music, text, motion analysis system and so on. The purpose of digital Wushu instruction court is to cultivate students’ interests to Wushu, increase Wushu instruction effect, and develop their self-learning ability.
PBP: A Type of BP Neural Network Algorithm Based on Priori Triggering
Authors: Chen Xiao Mei , Gang Dang , Yang Tian
Published: July 2011

The algorithm of anomaly detection for large scale networks is a key way to promptly detect the abnormal traffic flows. In this paper, priori triggered BP neural network algorithm(PBP) is analyzed for the purpose of dealing with the problems caused by typical algorithms that are not able to adapt and learn; detect with high precision; provide high level of correctness. PBP uses K-Means and PCA to trigger self-adapting and learning ability, and also, it uses historical neuron parameter to initialize the neural network, so that it use the trained network to detect the abnormal traffic flows. According to experiments, PBP can obtain a higher level of correctness of detection than priori algorithm, and it can adapt itself according to different network environments.
Design of Laser Remote-Control Pointer
Authors: Bi Yan Ping , Li Su Rui , Zhao He Yun
Published: July 2011

With the development of information technology, multi-media teaching has been applied widely in various colleges and institutions. In the classroom teaching, the teachers must utilize the remote control device to operate the computer and use body movements. In this paper, a kind of multi-function laser remote control pointer is designed, which can be used as a mouse without power consumption and operation platform., and then teachers can shake off the shackles of the computer and remote control the computer anywhere in the classroom. In this way, teachers can present the lecture through the computer and at the same time make full use of their body language and personal charm.
Optical Performance of Vertical Single-Axis Tracked Solar Panels with Seasonal Adjustment of Tilt-Angles
Authors: Tang Run Sheng , Zhang Tian Ming , Zhong Hao
Published: July 2011

To investigate the optical performance of vertical single-axis tracked solar panels with the tilt-angle of solar panels being seasonally adjusted (4T-V-A tracked solar panels, in short) as compared with fixed and full 2-axis tracked solar panels, a mathematical procedure to estimate the daily collectible radiation on fixed and tracked panels is suggested based on the monthly horizontal radiation. Calculation results showed that the optimal date on which tilt-angle adjustments were seasonally made was about 23 days from the equinoxes, the seasonal optimal tilt-angles of a 4T-V-A tracked solar panel for maximizing seasonal energy collection strongly depended on site latitudes, and the corresponding maximum annual collectible radiation on such tracked panel was about 97% of solar radiation annually collected by a dual-axis tracked panel, slightly higher than that on those tracking the sun about south-north axis inclined at a yearly fixed tilt-angle from the horizon. Empirical correlations for a quick estimation of seasonal optimal tilt-angle of vertical single-axis tracked solar panels were also proposed based on climatic data of 32 sites in China.
The Construction of the Modern Science Platform Based on Modern Physics
Authors: Ma Sheng Qian
Published: July 2011

Modern science contains a rich and profound content, each subject contend, overlapping and fusion, coruscate the strong vitality. The related contents are in the platform based on modern physics, It aims to explore the definition, characteristics, contents of modern scientific platform, and establish the platform to serve nature and society.
An Enterprise Safety Gateway Based on Netfilter/Iptables
Authors: Zhang Ying Chun
Published: July 2011

A Design of the enterprise safety gateway based on Linux built-in standard framework of Netfilter/Iptables was put forward, The key technology was analysed, then a normative and precise solution based on shell script which closer to the enterprises practical application was proposed. The firewall on network layer can not only protect the trusted region of the enterprise, but also can custom and achieve the interflow inside and outside the enterprise through MASQUERADE and DNAT.
3D Real-Time Modeling Issue in Gravity & Magnetic Anomalies Interpretation Tool
Authors: Yin Jiang Ning , Xiao Dun Hui
Published: July 2011

We present a new approach for constructing the initial 3D geological models in the process of man-machine interactive interpretation for gravity and magnetic anomalies. Firstly, we introduced the steps of method. It includes some auxiliary vertexes and sections techniques. Then, the forward algorithm of the model is given. And the data structure of the model is devised, later the modifying method and visualization method is discussed. This method is realized in our 3D gravity & magnetic anomaly interpretation system based on VC++6.0 and OpenGL. Using this method, the geophysical interpreter can construct or modify the geological models easily under the three dimension environment. The tool can give them visual 3D models, so it enhances the efficiency of the interpretation.
Analysis of Codon Usage Pattern in the DNA Polymerase Gene of Porcine Cytomegalovirus
Authors: Wang Yan Qun , Xu Zhi Wen , Guo Wan Zhu , Li Feng Qin , Zhu Ling , Zhao Ling , Shi Xiao Hong , Yi Yue , Nian Yang Yang , Mei Miao
Published: July 2011

The analysis of the codon usage pattern of Porcine Cytomegalovirus (PCMV) DPOL gene has both theoretical and practical value in understanding the basics of molecular biology and selecting appropriate expression systems to improve the expression level. In this study, the codon usage pattern of PCMV DPOL gene and other 36 reference herperviruses were analyzed, the results showed that the codon of PCMV DPOL gene was strong bias toward the synonymous codons with G or C at the third codon position, and was closer relatively to these viruses which were classified in Betaherpesvirinae. Correlation analysis indicated that there was no obvious correlation between PCMV DPOL gene and it’s host swine, and 13 codons showed distinct usage preference between PCMV DPOL gene and H.sapiens, whereas 16 in the E.coli and 27 in the yeast. Thus the mammal expression system may be more appropriate for the expression of PCMV DPOL gene.
Theoretical Band Gap Analysis of 2-D Triangular Photonic Crystals Fabricated via Multi-Step Interference Lithography
Authors: Yao Dong , Xiong Yu Qing , Chen Li
Published: July 2011

The effect of intensity threshold on the filling ratio was analyzed by calculating the intensity spatial distribution. The photonic band gap properties of two-dimensional triangular lattice fabricated by holographic lithography are investigated numerically. The influences of intensity threshold and dielectric contrast, on photonic gap are comprehensively studied by plane wave expansion method. Calculations of band structure as a function of the intensity threshold show that the PBG of positive structure opens for TM and TE polarization separate, and the negative structure has the complete PBG. The complete PBG does not increase monotonically with dielectric contrast ratio, but has a peak value instead by studying the relation between the complete PBG and the dielectric contrast ratio. The optimal dielectric contrast is 22 when intensity threshold is 0.2.
Research on Condition Monitor for Electromechanical System by Wireless Data Transformation
Authors: Jin Bao Quan , Wang Yan Kun
Published: July 2011

Disperse device and multiple physics parameter are the important specialties of large-scale complex electromechanical system. A new hardware network is presented according to these specialties and management of the device in this paper. In the network, some wireless mobile terminal carried by maintenance personnel are employed to data acquirement and sent data to fixed diagnosis center. The center is employed to fault diagnosis, feed back the diagnosis result to corresponding wireless mobile terminal, data management and trend analysis.
Model Predictive Control for Velocity Tracking in Full-Motor Injection Molding
Authors: Yan Xiao He , Su Shao Xing
Published: July 2011

Because very high or low velocity tracking will influence on product quality, velocity tracking must be proper high. So Controller of tall requirement is putting forward, we achieve veloctiy control requirements with model predictive control, get predictive control model and simulation curve to increase control efficiency.
Evaluation of Jujube Beverage Prescriptions with Fuzzy Mathematics
Authors: Gao Han , Fu Su Fang
Published: July 2011

The effects of different prescriptions on the sensory evaluation of jujube beverages were investigated with the method of fuzzy comprehensive evaluation, in which taste, color, flavor, and body were taken as the evaluation factors with proper weights. The results showed that the fuzzy comprehensive evaluation method could differentiate the grades of different products objectively and accurately. The optimum prescription was found as follows: fermented jujube puree of 90%, sugar of 8%, honey of 0.5%, citric acid of 0.15% as well as proper compound stabilizer.
Application Research of Chaos Synchronization in Detecting Weak Signal
Authors: Wu Dan Hui
Published: July 2011

The basic form of Duffing equation is firstly analyzed in this paper; and then, it describes the principle of weak signal detection based on the change of phase trace. In view of some key questions existing in weak signal detection based on chaos, a new system is put forward, which detects weak signal utilizing chaotic synchronization characteristics. Utilizing the system, the critical problems of existing in weak signal detection based on chaos can be solved, and that, a imitation experiment validates the project, as a result, the research in the paper provides the foundation of putting chaotic synchronization into practice application to weak signal detection.
Noisy Speech Recognition Based on RBF Neural Network
Authors: Yan Gang , Kong Hai Dong , Yu Yang , Zheng Xiao Xia
Published: July 2011

A noisy speech recognition method based on improved RBF neural network is presented, which the parameters of hidden layer are trained dynamically, and Akaike’s final prediction error standard (FPE) is employed to simplify the network. Comparing with two other training methods of RBF network, experimental results based on noisy speech samples show that this method achieves excellent performance in terms of recognition rate and recognition speed.
Mended EKF-Based GPS/INS Tight Coupling Simulator
Authors: Ye Ping , Zhan Xing Qun , Zhang Yan Hua
Published: July 2011

When Global Positioning System (GPS) blended with an Inertial Navigation System (INS), their performances would be remedied both. In this paper, a simulator with an INS module and a GPS receiver module on L1 C/A code signal in Earth-Centered Earth-Fixed frame is presented for testing tight coupling GPS/INS. With the mathematical models formulated to simulate GPS constellation and IMU measurements, both pseudorange and pseudorange rate observables are generated and applied in integrated filter. In addition, an EKF mending scheme is proposed to estimate the error states through expansion around the corrected states other than the preplanned states at each new update. A flight trajectory with multi-maneuver was implemented to test mended EKF-based GPS/INS tight coupling simulator. The results show that the simulator is effective and available.
Optimization of ANN Based on EA
Authors: Zhu Hong Guo , Xin Hai , Zheng Chang Wen
Published: July 2011

Artificial neural network (ANN) and evolutionary algorithm (EA) are both biology-based models of information processing. The basic theories of ANN and EA are described. Then the mechanisms of using EA for ANN’s optimization are explained and the research states are summarized. The existing problems and future directions are demonstrated finally.
Feature Based Similarity Measures of 3D Models
Authors: Yang Zhi Xin , Xiao Di Fu
Published: July 2011

The industries are facing with the pressure to design products that could meet various customers requirements in short term. At the main time, there are a lot of existing 3D models are available from accumulation of years of design practice. It is therefore critical to extract similar models from existing ones for reuse. This paper proposes a feature based similarity access tools which describe the 3D using global features. It describes the similarity measure principle, the feature extraction process, histogram generation and comparison method. The method has been verified of its effectiveness with plenty of examples. It could discriminate target model among complex product model database.
The Analysis of Profit Effect According to the Supply Chain Enterprise’s Core Degree
Authors: Zuo Xiao De , Zhen Zhen , Liang Yun
Published: July 2011

The core enterprise plays a leading role in the supply chain. This thesis is based on a new concept “The Enterprise Core” establishes the mathematical model about quantificational income distribution situation of the core enterprise and the non-core enterprise's, and demonstrates the enterprise core to the income distribution function. The result shows that the enterprise core has the direct relation to the increased income after cooperation, distributive gene lies on many factors including expectant profits of manufacturer and the distributor, their enterprise core, and total supply chain profit after cooperation.
Construction Financial Crisis Warning Model Using Data Mining
Authors: Pan Nai Hsin , Lee Ming Li , Chang Chia Wei
Published: July 2011

This paper employs artificial neural network of data mining and decision tree algorithm to build financial crisis warning model. The research results show that, forecasting performance of artificial neural network is better than that of decision tree model, hence, “financial statement average warning model” established through artificial neural network based on the average revenue of the past three years before financial crisis has better forecasting performance than the “annual report forecast model”. Factor analysis is employed to select common factor in 1 year before financial crisis, and the critical variables of financial crisis are found to be: debt-to-equity ratio, quick ratio, borrowing dependence, inventory turnover ratio, and earnings per share. According to the decision tree rule, variables differentiable to financial crisis warning are debt-to-equity ratio, earnings per share, and borrowing dependence.
Design of Computer Communication and Network in APOSOS Project
Authors: Zhao You , Gao Peng Qi , Shen Ming , Guo Xiao Zhong , Yang Da Tao , Yu Huan Huan
Published: July 2011

Asia-Pacific Optical Satellite Observation System (APOSOS) is based on members of Asia-Pacific Space Cooperation Organization (APSCO). Its aim is to develop a regional or even global satellite tracking system basically composed of optical trackers. The system will be used to track objects of interest or space-debris for the safety of spacecraft launch mission or the intactness of operational satellites. APOSOS is composed of Asia-Pacific optical satellite observation center, APSCO member state node, sub-node and observation telescope. Asia-Pacific optical satellite observation center manage the whole observation network. Every member state node answers for the organization of observation with their country’s facility according to the observation plan released by observation center. The sub-node transmits observational data to corresponding member state node first. Then the member state node transmits the data summarized to the observation center. This paper will briefly introduce the APOSOS project first and present the design of computer communication and network in APOSOS project in detail.
Web Data Extraction Research Based on Wrapper and XPath Technology
Authors: Liu Hong , Ma Yin Xiao
Published: July 2011

For satisfy people’s various need, some websites consist of pages that are dynamically generated using a common template populated with data from www, such as product description pages on e-commerce sites. In this paper, it merges wrapper technology with XPath to form a dependable, robust process for web data extraction. Through validating such a method in some experiments; we get results that it has high efficiency in extracting list page.
Stability Criterion of Discrete Hopfield Neural Networks with Weighted Function Matrix and one-Delay
Authors: Zou Hai Yang , Chen Sha Sha , Lai Xiao Feng
Published: July 2011

In this paper, discrete Hopfield neural networks with weight function matrix(WFM) and delay(DHNNWFMD) are presented. And we obtain an important result that if the WFM is a symmetric function matrix(SFM) and delayed function matrix(DFM) is a diagonally dominant function matrix(DDFM), DHNNWFMD will converge to a state in serial mode and if the WFM is a SFM and non-negative definite function matrix(NFM) and DFM is a DDFM, DHNNWFMD will converge to a state in parallel mode. It provides some theory basis for the application of DHNNWFMD.
Present Situation and Countermeasures on Attitudes and Behavior of Parents on Exercise one Hour Everyday for Primary and Secondary Students
Authors: Guan Shui Fa , Shen Jiong
Published: July 2011

The aim of the study is to analyze attitudes and behavior toward exercise one hour every day by means of questionnaire survey method by using7150 parents of students in primary and secondary schools in Zhejiang province as research object.The result shows parents are very concerned about whether their children is sick,but does not care about whether their fitness is good.Exercise time for most students during weekends and holidays at home is less than one hour a day.Parents have misunderstood to some extent as for the concept of physical training,awareness and exercise behavior.In view of parents’ erroneous zone of manner and behavior on “exercise one hour everyday”,this article put forward the corresponding proposal.
Study on the Practical Teaching of the Specialty Reform and Innovation through Cooperation between Academics and Businesses
Authors: Shao Kang
Published: July 2011

The practice teaching of specialty to the ability training of students of economic management field is very important. Some shortcomings exist in the practical teaching of the specialty system of undergraduate, which affect cultivation of the innovative qualified personnel. The author analyzes the existing problems, designs a scientific practical teaching system cooperating the universities with the enterprise to reform the existing system. The business processes in real enterprise has been introduced to intramural simulation training base to carry out the practice teaching of specialty cooperating the universities with the enterprises. It is mainly discussing the creative research way of the shortage of practical teaching resource for undergraduate based on the summarization of the experience gained in the innovation practice of practical teaching system of the information management and information system specialty in this paper. At the same time, the author explores the way to construct the demonstrative practice base of the information and management subject to solve the practical teaching problem of the specialty. The paper also discusses a few problems remained to be solved. On the basis of experiences and analyses, the author believes that in order to promote the construction of high-quality training system, the practical teaching system which cooperating the universities with the enterprise is the effective way to break the shackle of insufficient resources and ensure the quality of practical teaching.
Adaptive Genetic Algorithm Based Data Classification Rules Learning System
Authors: Shi Hai Bin , Li Yi
Published: July 2011

It’s a worthy research topic to use genetic algorithm for classification rules in data mining. In this paper, it was studied and researched in-depth. Firstly, we combined genetic algorithm and machine learning together, and then analyzed architecture of the genetic algorithm-based classification system, and also its development concrete structure was given. Secondly, we proposed a data classification rules learning system based on adaptive genetic algorithm, which can learn the classification rules accurately from the dataset. Finally the standard Play Tennis dataset was used for a closed test and after learning the system got three classification rules all with 100% accuracy rate, which fully demonstrated the feasibility of this algorithm.
Research of Bus Protection Based on Support Vector Machine with Parameter Optimization
Authors: Han Han , Wang Hou Jun , Huang Cheng Ti , Long Bin
Published: July 2011

Bus reliability is essential for maintaining the steady state of electrical network in power plants and power transformer stations. Researches on techniques and methods to achieve highly reliable and intelligent bus protection are very important. A new bus protection method based on parameter optimization of the support vector machine (SVM) is provided in this study. Various types of fault data were collected and used as samples for sorting comparison and analysis of different bus faults. Data were obtained by comparing the SVM method with the artificial neural network (ANN) method. The results suggest that the SVM model using RBF kernel can better distinguish among bus normal operation and different bus fault types than the ANN model, and meet the precision requirements for bus protection.
Research on the Application of Agent in Personalized Information Recommendation System
Authors: Chen Dan Er
Published: July 2011

In daily life, we rely on other people's suggestions or by word of mouth or recommendation letters and book reviews printed in newspapers and general surveys, such as restaurant guides. However, the Internet's explosive growth has brought us information that anyone can be greatly difficult to digest. To cope with the flood of information, the personalized recommendation systems have been established to assist and complement the natural social process. These systems recommend users to select information that users may be interested in and filter out which users may not be interested. In order to alleviate the information overload problem, the author researches on the application of agent in personalized information recommendation system. The system collects user information of interest through the agent systems and queries the resources to filter and remove information that users do not need. It can provide users with intelligent and active information services.
The Introduction of FDI and Use of Land Resources for Local Government
Authors: Jia Li Jie , Zhao Guo Jie
Published: July 2011

The introduction of land finance and foreign direct investment (FDI) lead to competition among provincial local governments in the background of fiscal decentralization. This paper analyzes the provincial data from 1999 to 2008 by a spatial econometric model. The main contents include the relationship between FDI policies in different provinces and the path dependence between FDI selection and land grant. The results showed that the FDI policies are significantly influenced by the similar policies of the surrounding provinces: the policy formulation and implementation is a complementary strategy between the studied province and surrounding provinces in the current year, and an alternative strategy in a lag. Land grant price significantly influent the entry of real estate. There is an obvious path dependence when FDI choose investment region. In this paper, these issues are analyzed with the actual situation in China.
Exploration of Several Difficult Croblems in Compiling Drawing Used AutoCAD
Authors: Luo Hui Zhong
Published: July 2011

It discourses the methods and procedures of drawing axonometric and intersection while AutoCAD is applied to the complication of drawing teaching material; discusses the techniques of screen-capture and the application of BetterWMF when AutoCAD is inserted into Word Documents. All of the above methods and techniques have great utility value.
Study on the Structure and Spectrum of Water in 1-Ethyl-3-Methylimidazolium Tetrafluoroborate Ionic Liquids
Authors: Tian Guo Cai , Jiao Zhi Liang , Li Ya Dong
Published: July 2011

Various 1-ethyl-3-methylimidazolium tetrafluoroborate ([Emim]BF4)/water mixture with varying concentrations were studied by molecular dynamics simulations. The radial distribution function, the power spectrum velocity-velocity correlation function were calculated to reveal the microstructure and the IR spectrum. In both liquids, with the concentration of water in the mixture increase, the rotation bands and the bending bands of water are red shift whereas the O-H stretch bands are blue shift. It was found that the molecular rotation motions become slower as the proportion of water increases and water molecules tend to be isolated from each other in mixtures with more ions than water molecules. It was shown that water molecules tend to be isolated from each other in mixtures with more ions than water molecules in both liquids.
The Research on the Construction of a Virtual Community Knowledge Base
Authors: Zeng Xia Zhu , Ai Kui Tian , Qian Xin
Published: July 2011

Outline the background and meaning of knowledge base, analyse the role of building it in a virtual community and discuss the problems which will be encountered in the process of building and propose some strategies which can be adopted in the course of structure. In the education field, the virtual community knowledge base is a kind of virtual intellectual resources sharing system in essence that enables individual knowledge into collective. It is a database platform on which college students can display themselves, communicate and share knowledge freely.Currently, ontology-based knowledge base system is the hot topic.
Research of the Welding Wire Sending System Based on Fuzzy Adaptive-Adjusting PID Control
Authors: Zhen Ren He
Published: July 2011

This article employs single closed loop of voltage negative feedback circle to explore the welding wire sending system of arc welder, as the system of this style has the feature of rough sending and poor dynamic behavior. A double closed loop PWM digit speed adjustment system is proposed based on fussy adaptive-adjusting PID control algorithm. The experiment result indicates that this control system not only has a sound dynamic behavior and static behavior but also has a strong self-adapting behavior, and mostly eliminates the arc flutter made by the rough welding wire sending system.
The Application and Design of the Smart Home Wireless Bus Protocol Based on the NRF24L01
Authors: Huang Qing Fu , Yang Jian Wu , Chen Zhi Cheng
Published: July 2011

With the development of the technology and society, the resolution of the wireless LAN would be the direction which is leading the smart home LAN’s construction, the IR, RF, Bluetooth, Zigbee, GPRS, and others wireless methods have been applied in the smart home smoothly, like the control, security, data transmission, now it is time to specified the rules for the wireless technology in the smart home, this paper introduces a kind of the smart home wireless bus protocol that based on the Modbus protocol, and the hardware and PC software have been designed for it, the project achieved the operation and communication among the nodes, the test realizes that it has the better data transmission mechanism when adopting the wireless bus protocol, and make sure the reliability of the data transmission between the nodes in the smart home.
CFD Simulation Analysis on Fire Feature of Tunnel with Different Sections of Smoke Outlet
Authors: Cong Bei Hua , Han Xin , Lin Jun
Published: July 2011

With regard to road tunnel fire situation, the smoke extraction system is very important for effective control of fire temperature as well as crowd safe evacuation. The section form of smoke outlet is one of the main factors affecting smoke extraction. Taking a certain large scale cross-section road tunnel as physical model, this paper carried out simulation analysis on several fire scenarios with the help of software FDS. By comparing with different flow rates of each section of smoke outlet as well as the corresponding calculated danger approaching time, the appropriate smoke outlet section was attained which could be a reference for practical projects.
Changement de fonction des éléments prosodiques au cours du développement : du tout vers la partie et de la partie vers le tout
Authors: Soderstrom Melanie , Barbin Franck
Published: July 2011

Résumé Le nourrisson est confronté à un flux de parole qui forme un tout continu. La prosodie lui fournit divers indices lui offrant la possibilité de comprendre comment se structure ce flux. Cette sensibilité précoce permet au nourrisson de dégager les propriétés rythmiques de sa propre langue et lui donne des indices lui servant à regrouper des sons qui font sens grammaticalement – tout d’abord de grandes unités syntaxiques, notamment les expressions et les propositions, avant de pouvoir trouver des indices linguistiques spécifiques lui permettant d’identifier des mots. Ces indices qui permettent au nourrisson de repérer la segmentation des unités grammaticales l’amènent à se concentrer sur les relations pertinentes entre ces unités. À mesure que ses connaissances grammaticales se développent, il arrive à repérer des propriétés prosodiques plus subtiles, notamment les indices caractéristiques d’une dysfluence. Les paroles adressées au nourrisson présentent le plus souvent des indices prosodiques exagérés alors que les échanges entre adultes fournissent un modèle plus exact.
Les performances différenciées des marchés du travail en Europe centrale : une analyse en termes de path-dependency/path-shaping
Authors: Rodet-Kroichvili Nathalie
Published: July 2011

Dans les analyses comparatives, Pologne, Hongrie, République tchèque et Slovaquie sont souvent traitées en tant que groupe (groupe de Visegrád). Au-delà des similitudes que ces pays présentent, des différences peuvent être mises au jour : c’est le cas en particulier des performances de leur marché du travail. Cette étude se propose de rendre compte de cette diversité en examinant la thèse de l’influence des institutions du travail (et notamment de leur plus ou moins grande rigidité), puis celle des choix effectués en matière de flexicurité. Les deux thèses ne permettant d’expliquer qu’imparfaitement les performances dégradées des marchés du travail dans certains de ces pays et ce qui les différencie, nous proposons de développer une approche en termes de combinaison de processus dépendants du sentier et de stratégies volontaristes créant de nouvelles voies (path-dependency/ path-shaping).
Inégalités des revenus dans la transformation post-socialiste: Une approche institutionnelle des cas tchèque, hongrois et russe
Authors: Porras Laila
Published: July 2011

La transformation post-socialiste a eu des effets déterminants sur la répartition des revenus et l’évolution des inégalités dans tous les pays anciennement socialistes. L’explication de la dynamique observée réside entre autres dans les réformes appliquées dans le cadre des politiques de stabilisation, de libéralisation et de privatisation de l’économie. Cependant, l’existence de deux trajectoires différenciées au niveau régional, avec la réussite relative, en termes de croissance et d’évolution des inégalités, de l’Europe centrale et des pays baltes comparativement aux pays de la CEI, nous amène à réfléchir à l’impact des facteurs historiques et des conditions initiales, à l’influence des institutions présentes et passées et, enfin, au rôle déterminant de l’État. L’étude des déterminants de la trajectoire d’évolution des inégalités dans la transformation post-socialiste s’appuie sur trois pays : la République tchèque, la Hongrie et la Russie. Nous nous efforcerons d’analyser les spécificités des politiques et des institutions dans les domaines du travail et de la redistribution pour rendre compte de ces trois trajectoires de transformation.
Successful Neuroendoscopic Treatment of Intraventricular Brain Abscess Rupture
Authors: Nishizaki Takafumi , Ikeda Norio , Nakano Shigeki , Sakakura Takanori , Abiko Masaru , Okamura Tomomi
Published: July 2011

Intraventricular rupture of a brain abscess is still associated with a high mortality rate. Here, we report such a case in a patient with normal immunity that was treated successfully using neuroendoscopic approach. A 69-yearold man who had presented with headache and fever developed confusion and restlessness. Magnetic resonance imaging revealed a mass with ring enhancement extending to the right ventricle. Emergency aspiration of cerebrospinal fluid (CSF) from the spinal canal revealed severe purulent meningitis. Bacterial culture of the CSF and blood was negative. Because of prolonged consciousness disturbance, the patient underwent evacuation of the intraventrcular abscess using a neuroendoscope. The pus was centrifuged and collected for bacterial culture, and this revealed Streptococcus intermedius/milleri. After implantation of a ventricular catheter, gentamicin sulfate was administered twice a day for 9 days. Cefotaxime sodium was also administered intravenously for 14 days, followed by oral administration of cefcapene pivoxil hydrochloride for 10 days. The patient made a complete recovery, and was discharged 31 days after admission. After 20 months of follow-up, he is doing well and has returned to his work. In cases of intraventricular rupture of a brain abscess, a neuroendoscopic approach is useful for evacuation of intraventricular debris or septum, and identification of the causative bacterium for selection of antibiotics, possibly reducing the period of hospitalization.
Antimalarial Drug Sensitivity Profile of Western Kenya Plasmodium falciparum Field Isolates Determined by a SYBR Green I in vitro Assay and Molecular Analysis
Authors: Akala Hoseah M. , Eyase Fredrick L. , Cheruiyot Agnes C. , Omondi Angela A. , Ogutu Bernhards R. , Waters Norman C. , Johnson Jacob D. , Polhemus Mark E. , Schnabel David C. , Walsh Douglas S.
Published: July 2011

In vitro drug sensitivity and molecular analyses of Plasmodium falciparum track drug resistance. DNA-binding fluorescent dyes like SYBR Green I may allow field laboratories, proximal to P. falciparum collection sites, to conduct drug assays. In 2007–2008, we assayed 121 P. falciparum field isolates from western Kenya for 50% inhibitory concentrations (IC50) against 6 antimalarial drugs using a SYBR Green I in vitro assay: 91 immediate ex vivo (IEV) and 30 culture-adapted, along with P. falciparum reference clones D6 (chloroquine [CQ] sensitive) and W2 (CQ resistant). We also assessed P. falciparum mdr1 (Pfmdr1) copy number and single nucleotide polymorphisms (SNPs) at four codons. The IC50s for IEV and culture-adapted P. falciparum isolates were similar, and approximated historical IC50s. For Pfmdr1, mean copy number was 1, with SNPs common at codons 86 and 184. The SYBR Green I assay adapted well to our field-based laboratory, for both IEV and culture-adapted P. falciparum, warranting continued use.
Lesion Size Correlates with Leishmania Antigen-Stimulated TNF-Levels in Human Cutaneous Leishmaniasis
Authors: Oliveira Fabiano , Bafica Andre , Rosato Andrea B. , Favali Cecilia B. F. , Costa Jackson M. , Cafe Virginia , Barral-Netto Manoel , Barral Aldina
Published: July 2011

Cutaneous leishmaniasis (CL) is a worldwide disease endemic in several regions of the globe. The hallmark of CL is skin ulcers likely driven by efforts of the immune system to control Leishmania growth. Cytokines, such as tumor necrosis factor (TNF) and interferon-gamma can control disease progression in animal models. Nevertheless, the impact of these cytokines in CL ulcer outcome is not well established in humans. In this study, 96 CL patients from an endemic area of Leishmania braziliensis were enrolled for a follow-up study that consisted of clinical and immunological evaluations in a 2-year period. Statistical analysis revealed that healing time (P = 0.029), age (P = 0.002), and TNF levels (P = 0.0002) positively correlate with ulcer size at the time of the first clinical evaluation. Our findings suggest that ulcer size correlates with healing time and TNF levels support the use of TNF inhibitors combined with standard therapy to improve healing in CL patients with severe lesions.
Estimation of NOx emissions from Delhi using car MAX-DOAS observations and comparison with OMI satellite data
Authors: Shaiganfar R. , Beirle S. , Sharma M. , Chauhan A. , Singh R. P. , Wagner T.
Published: July 2011

Abstract. We present the first Multi-Axis- (MAX-) DOAS observations in India performed during April 2010 and January 2011 in Delhi and nearby regions. The MAX-DOAS instrument was mounted on a car roof, which allowed us to perform measurements along individual driving routes. From car MAX-DOAS observations along closed circles around Delhi, together with information on wind speed and direction, the NOx emissions from the greater Delhi area were determined: our estimate of 3.7 × 1025 molec s−1 is found to be slightly lower than the corresponding emission estimates using the EDGAR data base and substantially smaller compared to a recent study by Gurjar et al. (2004). We have also used the MAX-DOAS observations of the tropospheric NO2 VCD for validation of simultaneous satellite observations from the OMI instrument and found a good agreement of the spatial patterns. The absolute values show a reasonably good agreement. However, OMI data tends to underestimate the tropospheric NO2 VCDs in regions with high pollution levels, and tends to overestimate the tropospheric NO2 VCDs in more clean areas. These findings indicate possible discrepancies between the true vertical NO2 profiles and the profile assumptions in the OMI satellite retrieval.