Abstract:This paper discusses comprehensively foreign Hadoop researches in recent years. Literature metrological analyses include publishing years, source countries, the author's organization type, topic, etc. Content analysis includes theory and applied research. Theoretical researches include comparative, task scheduling and efficiency improvment. Application researches include cloud storage, searching, data analysis, data mining, and relevance advertising. It is hope that some reference can be used for forward research.

Abstract:This paper has systematically elaborated the theory and method of Linking Institution with Process for Implement, and also analyzed the methodology from institution analysis to process designs for instance as the quality management system in the government departments. It has gone a step further that the top designs and application frame plan for the informationizational platform which is the carrying system to Link Institution with Process for Implement. This methodology also provides a course method and a technological route for establishing the government department's quality management system and linking Institution with Process for Implement.

Abstract:A computer readable unified information model is the data foundation in medical imaging semantic retrieve. In this paper, some challenges including lacking of unified information model for medical imaging information, the terminology and syntax for describing the semantic content in medical imaging varying were discussed, and an ontology-based information scheme for medical imaging information integrating was developed. Based on the analysis of medical imaging data source and the relationship of them, a medical imaging information ontology model was developed using "seven-step" method proposed by Stanford University, and the persistence of ontology model, extracting original data and data integration were realized. The information model was used in medical imaging semantic retrieve.

Abstract:SQL SERVER 2005 backup and recovery function looks very simple on the surface, but in fact, the realization mechanism is very complex and Microsoft did not announce concrete implementation details of backup and recovery. Including professional database administrator, very few people can explain SQL SERVER backup/recovery's implementation details clearly, this paper strive to research and analysis of the SQL SERVER Transaction Log and backup and recovery based on the log of transaction from a deeper level.

Abstract:In response to the large number of users simultaneously access the webcast streaming service, streaming media publishing system is essential. In this paper, according to the characteristics of the network broadcasting system, we design and set for network broadcast streaming media publishing system, the system is divided into the Relay of media streaming and the publishing of streaming media.Through adding relay module to Darwin Streaming Server to achieve media streaming relay. Through structuring back-platform management system, front-end platform and terminal platform three parts to achieve streaming media's publishing. Finally, multi-terminal access publishing system to verify the function of the system, achieving the network broadcast media streaming and streaming media's publishing, allowing users to listen to the program more convenient.

Abstract:With current information technologies and Internet applications, the concept of regional mobile medical service network is proposed. Based upon the review of current researches on the mobile health service, cloud computing, and Android, the overall architecture of a mobile health service platform is presented, its key structure, including computing layer, medical service layer, and mobile application layer, is also discussed; Then, key technologies of the platform, including the principals of the Google App Engine, programming environments in client and server side, and data storage interface between GAE and the platform, are described in detail; Finally, the implementation of the platform is presented both from the mobile terminal and the server side perspectives, with a full demonstration of the client side functions based on Android, such as the display of medical expert information and medical supplies.

Abstract:The most used ZigBee protocol in Internet of Things (IOT) is not compatible with the TCP/IP protocols, so the convergence of these two kinds of networks is the essential technology in IOT. The thesis analyzes the requirement of the IOT gateway at the beginning, then designs and realizes a ZigBee gateway prototype, based on the CC2530 develop kit, Longson 1B develop board, Zstack and embedded Linux system, achieves functions such as management of the ZigBee network, protocol conversion and data transmission, and then verifies these functions through experiments.

Abstract:Coordination working is the advanced stage of management model in most modern enterprises, researchers start with technical routing and planning, as well as the building of a typical coordination working system in the enterprise, optimize and electronize existing business process management, improve the enterprise's application level of coordination working system step by step based on the phased plan of action, at last, analyze system in detail and expect its application in future.

Abstract:To meet the practical needs of engineering test along the high-speed railway, we proposed the design for the system of GSM-R electromagnetic environment test. Through the interface programming technique, the computer takes remote control for the ESPI and GPS and other instruments, thus, the functions of real-time acquisition, display and storage of GSM-R electromagnetic environment data are achieved．Consequently, the electromagnetic environment quality evaluation can be gained with the playback and processing of data in the selected test bands and area.

Abstract:The necessity of building a business monitoring system is discussed first, and the correlative techniques are introduced. Then the system plan and its architecture are designed. Then we implement the system with flexible component, XML and JAVA technology. Our system can highly improve customer's perception and user's satisfaction, thus enhance the business operation and support management in telecom.

Abstract:In order to realize the real time monitor and informatization management of the water quality of aquaculture industry, the water quality monitoring system was designed based on the core technology of the internet of things such as: ZigBee, GPRS and the sensor technology for real-time water quality monitoring. The water level, dissolved oxygen, the temperature and video parameters could be collected in real time, analyzed, displayed and managed.

Abstract:In this paper, the intelligent car is a control system that uses the 16-bit Freescale microcontroller MC9S12XS128 as CPU, and utilizes the CMOS camera as the sensor to collect the image information in track for path recognition. With debugging problem of complicated parameters for intelligent car, we demonstrated how to use the TFT color screen in both hardware and software, firstly. And then the handheld TFT color screen that is applied in path recognition, as well as the interactive interface, is illustrated in detail. The display of color screen contains a black line extracted from path, the threshold, moving images and static images, so it is easy to debug and analyze the image in a short period of time.

Abstract:High temperature tribometer is used to evaluate the tribological properties of engineering materials under high temperature conditions. In the present paper, the virtual instrumental testing system of the tribometer was developed with LabVIEW software as it calls the dynamic link library to drive the normal data acquisition card. The system is designed for getting the information about coefficient of friction, temperature, velocity and load of data acquisition, data treatment, graphic displaying, data storaging and report generating. The friction and wear tests were carried out by the pin-on-disc tribometer with this testing system. The experimental results show that the testing system is stable, accurate and reliable.

Abstract:Watt-hour Meter is the main device in electric energy metering instrument, also is a kind of measuring instrument used in trade settlement. It's accurate and reliable is very important in protecting the interests of users and the electric power enterprise. So it is particular important to verify the Watt-hour meter. In this paper, we introduce the hardware and software of master control part in Watt-hour meter calibration device. We use the ARM9(S3C2440) as the master control part in the device, and adopt Microsoft's embedded system Wince as the operating system, use MFC to develop the user application program. Implement software interface simple and beautiful.

Abstract:Presents a general Field-Oriented Data Center (FODC) for WEB services. Using the semantic integration, data mapping, data warehouse and other data integration technologies, not only achieves seamless integration of distributed heterogeneous data sources, but also realizes data sharing and data exchanging between distributed heterogeneous data sources and the FODC. Therefore, the model provides a unified data services for WEB services. In an application of the model-Oil and Gas Production System Software Integration Platform, established the Science Data Cloud in the field of the oil and gas well production of China, solved the massive, distributed heterogeneous data organic integration and seamless sharing problems, and presented a WEB service platform for oil and gas production, with production management, equipment management, workflow control, optimal design, fault diagnosis, decision support and other functions. The case verified the correctness and feasibility of the model.

Abstract:By analyzing the characteristics of 3G wireless networks at present, wireless video monitoring system works and technical difficulties, this paper proposes and designs a multi-channel wireless video monitoring system. This system realizes six video channels wireless monitoring function, as well as the six-channel video data network monitoring and save functions, etc.

Abstract:This article aimed at the problem of insufficient in mesh and tree-like network topology reflects the level of the network, the on-off state of a single screen display, research based on polar coordinate algorithm for the center of radiation hierarchical topology graph realization method, realizes the automatic hierarchical topological graphics display and dynamic update, can achieve to describe a relation of the network equipment efficiently and clearly, the research results have been in multiple unit is a practice test, which provides important means for enhanced network management and maintenance.

Abstract:A novel CBIR algorithm based on ring-shaped distribution of salient points are presented in this paper. First, the salient points were detected by wavelet transform, in which those wavelet coefficients can be calculated in different multi-resolutions. Then the location and some low level features such as color of salient points are extracted to describe each image patch．Secondly, the image is divided into a number of concentric rings along the radius direction, and the image feature vectors are computed according to the probability of salient points in these rings. Finally, similarity between images is calculated by the block-distance with weight. Experiments show that the retrieval algorithm and image similarity calculation method proposed in the paper is not only retrieval of high precision, but also excellent invariance feature in rotation, scale and visual angle of view.

Abstract:Aiming the importance degree of indexing terms hadn't distinguish to users and the common computing platform carrying capacity limited proposed the improved cosine vector measuring method indexing term weight algorithm based on cloud computing (ICVMMITWCC algorithm), the algorithm corrected the classic cosine vector measuring method indexing term weight algorithm (CCVMMITW algorithm) to acquire relative weight by computing indexing term average weight from texts set that included all indexing terms; comparing the efficiency of sorting of texts in ICVMMITWCC algorithm and CCVMMITW algorithm by experiment, indicating ICVMMITWCC algorithm is closer to the query requirement of users.

Abstract:To improve the performance of querying over encrypted character string in database, this paper proposes a method that creating B^* tree cluster index base on index characteristic code. Every encrypted data has an index characteristic code which store in an index filed as index. When querying the encrypted character data, applies the principle of two_phase query. In the first place, make use of index characteristic code to filter the records which is not related to the querying condition. Secondly, decrypt the rest records and take advantage of plaintext querying condition to get the final records. Results of experiments validate the performance of our method compared with exsiting ways at present.

Abstract:According to the fact that BP neural network is easy to fall into local minimum and the slow convergence problems, the paper introduces QPSO and BP neural network combination method, which shares the advantage of BP neural network robust flexibility and the powerful global searching ability of QPSO, through improved the calculation method of average optimal position of QPSO to make the BP neural network and QPSO oilfield energy conservation index prediction success. Using the injection pump unit consumption data of Daqing Oilfield Company as training data, by training the new mehtod with the data of samples, the forecast results show that the proposed method can achieve good forecast effect and have feasibility.

Abstract:In order to solve the visual discontinuous phenomenon that produced by TV method, improve the effect of image restoration,adopts a histogram equalization (CLAHE) operation which can strengthen the details and expand dynamic range of the image. After the TV transformation,uses a morphology operation to smooth and eliminate isolated points of the image. This paper presents the algorithm principle and implementation steps,the experimental results show that,after repair,the whole image has a better visual repairing effect and a high PSNR.

Abstract:Algorithm calculates the gray curvature based on the directional image,and then normalizes it to range 0-1 as the stardand of direction consistency by which and average fingerprint ridges frequcy the window size of Gabor filter is adjusted. The experiment proves that, this algorithm can not only improve the joint of faulted ridges and separation of accretionary ridges, but also enhance the stability and applicability.

Abstract:An improved image hiding technology based on DCT and chaos is presented. We use chaotic system to generate one chaotic sequence which is utilized to encrypt the secret image, and then we use DCT and chaotic sequence to realize the secret image hiding in the host image. Simulation results show that the algorithm has good security and hiding effect.

Abstract:With the rapid development and a large popularity of microblogging, community discovery has become the current new research focuses, which could help the operators understand network structure and the characteristics of users, then provide users with personalized services. Most of previous study only emphasized the network structure without considering the content. The paper provides a community discovery method based on the users' theme similarity and network structure. Firstly, retrieve users' theme from their microblogging; then cluster the similar users based on the links among them and users' similarity; finally gain the communities. The experiments on the big data show that the method can not only find potential community, but also gain its theme.

Abstract:Taking Yangzhou Polytechnic College at Yangzijing as an example, this paper takes Google Earth as the data source, ArcGIS and Tianzheng software as the modeling platform. According to the existence of architectural working drawing, the paper establishes schemes of modeling digital city by two ways: ① controls position of buildings by ArcGIS, then models buildings in ArcGIS or does refining treatment in SketchUp; ② controls position of buildings by ArcGIS, then introduces architectural working drawing into ArcGIS directly. Finally all data will be fused in ArcGIS platform. These two methods make the modeling of digital city rapidly and effectively, and reduce the cost greatly. A preliminary investigation has also been carried out on the application in the field of urban planning, housing marketing and digital navigation.

Abstract:Many applications are not fault-tolerant and require a reliable service which only TCP can provide. In 6LoWPAN network, because of the restrictions of node hardware and the underlying communication protocol, the compression of TCP packet must be done. However, there is no related standard currently. The TCP header compression Scheme named LOWPAN_TCP_HC for 6LoWPAN network based on the characteristics of 6LoWPAN networks and the study of existing TCP header compression scheme had been proposed in this paper. The experimental results show that LOWPAN_TCH_HC can effectively compress TCP header, reduce the sensor node energy consumption and extend the node's working time.

Abstract:Xen Hardware-Assisted Virtualization(HVM) is a service that one can run a virtual machine which is a unmodified OS on Xen Hypervisor. HVM causes a loss of management of the process granularity for the reason of VMM's lack of interference and understanding of the guest OS. This paper presents a lightweight process trace method for Xen HVM named Xen HPT. With the assistance of guest OS register information (mainly the ESP) collected by VMM, Xen HPT can implicitly capture the real-time process information of target guest OS outside on Domain0 with little effect on guest OS.Xen HPT has been tested by Linux guest OS and result shows that the method is effective.

Abstract:The secondary digital character recognition based on the character global feature and BP neural network is proposed in this paper. First of all, digital characters should be pre-recognized by the method of BP neural network, and a preliminary result can be obtained. After that, the secondary recognition to those characters which may be very close to confusing in the preliminary result should be arranged, so that, those digital characters confused can be distinguished and the better result can be reached. As a result, the method, combined with nonlinear and self-learning of the neural network, and invariance of the overall character feature of the shape and structure, can reach the high recognition accuracy on the condition of the low sample size.

Abstract:In this paper, a method for activity recognition based on 3D acceleration sensor is introduced.We recognized five activity including standing,walking, running,upstair and downstair with this method. Many statistical features are extracted such as standard deviation, skewness, kurtosis and correlation coefficient for classification. The result of experiments for testing the effectiveness of the proposed method is presented.

Abstract:Wireless multimedia sensor are widespread use in many areas, but it often be deployed or become invalid in an unfamiliar environment, so it is easy to cause instability and even failure of the sensor networks. Therefore propose an energy efficient and fast recovery routing protocol for Wireless multimedia sensor networks, multipath was established according to destination routing approach. By selectively forwarding RREQs, it effectively reduces the routing overhead and efficient completion of the establishment of route finding. Each node has established a number of paths to SINK, when the node fails, immediately forward data from another path, to avoid re-establish the routing overhead, thus increasing the stability of the network and extend network lifetime.

Abstract:To solve directing and adjusting systems only displaying the real-time mission image, not accomplishing synchronous capturing and replaying to all sorts of image data, and not achieving auto switching in accordance with timing sequence to all kinds of scene, This thesis adopted many key technologies such as multi-video synchronous capture, live broadcast, synchronous replay and automatic procedure control, and designed a multi-channel video capturing & replaying system. This system can reappear scenes from multi projecting cameras after military simulating training task. This technology resolves the difficult problem that the commanders cannot analyze the procedures after military simulating training. This system effectively promotes the simulating training efficiency and poses significant reality and military meaning.

Abstract:The network management of traditional vehicles cannot meet the requirement of Electrical Vehicles(EVs). The paper proposes a network structure of EVs which compose of main gateway, sub-gateway and their sub network segments. Each network segments communicated with another by at least one gateway. 4 working mode of EVs are defined in this paper for the reason that gateway can separately control the state of its network segments, which reduce power consumption and increase the safety monitoring.

Abstract:With the continuous research of the psychological and educational measurement theory combined with computer technology, based on computer adaptive test become a new type of test form. On analysis of the computer adaptive theory and the selection strategy of the item maximum information, the paper designs and implements an adaptive test system. In experiment, the value of student's evaluated capacity, the total information, the maximum information and the parameters of item are analyzed and summarized. The experiment shows that the system is effective.

Abstract:This paper designed and implemented a working and research collaboration platform to analyse astronomical spectral based on HTML5 WebSocket message pushing mechanism and Canvas drawing technology. It realized the initiative message push from the server to the client by establishing a TCP connection between the client and the server, so as to replace the old polling mechanism requesting from the client to the server, and reduced the network occupancy rate and data transmission. Users from multiple clients in different regions can communication on line at the same time, discuss and analyse the synchronously loaded celestial spectrum, mark and analyzes relevant spectral characteristics collaboratively. In addition, we made optimization to the transmission way for drawing handwrite and greatly improved the synchronization efficiency of drawing of multiple clients in different regions.

Abstract:Modeling and simulating the evacuation of people in disaster area during the spread of the forest fire when forest fire occur can inspect whether the evacuation is reasonable, which could provide directive significance for reasonable salvation. At present, different methods have been proposed in modeling and simulating of person evacuation, but few work is focused on the research of modeling and simulating for person evacuation in forest fire. To solve this problem, we apply multi-agent on the modeling and simulating of the spread for forest fire and the person evacuation. We utilize the "Repast" platform to simulate the model. The experimental results show that the proposed method can provide reasonable solution for the modeling and simulation for the evacuation of person in forest fire.

Abstract:This paper aimed at the intuitionistic fuzzy multiple attributes decision making issues with incomplete attribute weights, and we proposed a grey relational analysis method. First of all, the relative conception of the intuitionistic fuzzy theory was introduced, then we presented the steps to solve this kind of problem basing on the basic idea of TOPSIS and traditional grey relational analysis method, by utilizing the single objective programming model we got the determinate value of the weights information, so the rank was carried out. Finally, an example was used to illustrate the feasibility and effectiveness of the proposed approach.

Abstract:SMS (Short Message Service) is an important function of cross-platform collaborative system. Though JAVA provides a good compatibility support for cross-platform, there exists some problems in low-level language implementation of JAVA call in different platforms. This paper discusses the physical GSM MODEM operations and controls by calling SMSLIB, the parameter configurations. The transplantation of SMSLIB embedded system is analyzed and a solution is given.

Abstract:Describe a firm ware implementation strategy of on-line UPS digital control system which transplants an embedded operating system on DSP56F8356. The structure of single input and singe output on-line UPS firm ware is presented. The function of every task and interrupt service subroutine is deeply discussed. Program under this firmware structure has run on a 10KVA online UPS. The experiment result shows that each specification of UPS meets national standard and is leading the way of UPS industry.

Abstract:the most discrimination feature is the people's forehead,eyes, ears and the mouth. On the bases of this,to be four block in the face! So the face is divided into three small block based on line and into three small block based on the column! According to the face have symmetry properties,so features of matrix will be transformation! The new definition of the membership function used in maximum divergence difference for extracting the most identify characteristic vector,and then, according to the nearest neighbor classifier to classify the sample.

Abstract:DDoS attacks are a major threat to internet and almost all of DDoS attacker use TCP Flooding attacks. Based on lots of studying, a network monitoring machine is presented. The machine can detect TCP Flooding attacks for local area network and solve problems of other security production.

Abstract:the relational database standardization design requirements for handling process to eliminate data redundancy and update anomalies. Fan Shihua theory of algorithms and data dependence has a direct connection, relying on data dependence is the most important thing in function, and identify the dependence is both time-consuming and complex. This article discusses how to in the ER model database logic design step eliminate standardization process, in the process of conceptual structure design to follow a set of rules will lead to meet the initial relationship model set of 3 nf paradigm, to save the database designer after initial relational schema set derived the standardization of the processing steps.

Abstract:Multi-tenancy data storage is important in SaaS application. Most of solutions are based on RDB, which use schema mapping techniques. In this paper, Discuss the flexibility of data storage and the distribution to explain that we can use NXD in SaaS. Give the XML structure which is fit for multi-tenancy and efficiently support SaaS features.

Abstract:DDoS (Distributed Denial of Service) is one of the most serious threats to the Internet, it has brought immeasurable loss to Internet business. Analysis of the characteristics of the DDoS attacks, for enterprise class systems, introduced multiple load balancing strategy based on a combination of hardware and software, as well as its application to prevent DDoS attacks. Designed a typical application system, made a performance analysis of the actual attack.

Abstract:Risk of the IT Project's Time is one of the most important risks in IT projects. Most of the existing IT engineering time risk metrics is directly based on Experts Grading Method metric results, so the accuracy of the results is not enough to bring the practical application of the inconveniencing. In order to solve this problem, two different analytical paths are proposed in this paper. The first risk measurement method is to measure the risk in the specific distribution assumptions on IT Project's time; the second one is using the Monte Carlo simulation to measure IT project time risk. And finally, the risk of a simple small-scale IT projects Time is measured using the two methods. The result shows that the measure IT project time risk method using Monte Carlo simulation can meet the precision, and it is applicable to a wider area.

Abstract:The research has adoped the DirectShow technology to get media data from audio and video equipment and solve after-treatment problems. With the increasingly wide application of multimedia technology, users's requirements of multimedia products are becoming higher and higher. The early multimedia software, highly correlated with audio and video equipment, and with limitations such as poor commonality and the function expansion difficulty, can not meet users's needs. Based on the characteristics of DirectShow system's full support to hardware, and hardware's independence, this article has proposed a design method of applying DirectShow technology to solve problems that multimedia software is limited by equipment. Tests show that, the method has a chieved the expectation and will have a good application prospect in the field of multimedia.

Abstract:To make the data measured by the electronic sphygmomanometer reliably saved, this system uses the avr microcontroller, pressure sensor,liquid crystal display and Bluetooth module. It is made to measure people's heart rate and blood pressure and is able to send the result data to a phone via Bluetooth. The phone can save the data and draw a line graph, and give an appropriate assessment. The result can be sent to others' (doctor' s e.g.) phone by message. This design has many advantages such as low-cost, low-power, easy to carry,easy to use and so on.

Abstract:A comparative study is conducted on the I/O performance between the popular web service applications of Apache and Nginx in high concurrence environment, based on the analysis of linux I/O model and the related I/O event-driven mechanism of Apache and Nginx. The functionality and usage are also compared with an application instance. Both the advantages and disadvantages of Apache and Nginx are discussed. Some suggestions for properly choosing of the 2 applications are given in the end.

Abstract:According to Nand Flash memory bad block problem, this paper proposed a automatic check scheme to deal with bad block based on STM32. Without increasing the external device, through its internal flexible static memory controller, sends the corresponding data, address, control signals, to rapid access Flash memory. Its part circuit schematic diagram and C language program code was introduced. The design has been successfully realized the function of automatic checking the invalid block finally, and has the advantages of simple operation, fast detection speed, high accuracy rate, and can read the ID number of Flash to get the performance of the memory. And the design also can write and read 2GB data.

Abstract:The Fire water column simulation has been widely used in visual Fire Simulation Training System. To simulate the real Fire water column and establish realistic fire water simulation scene, a user-defined water particles model design method based on OSG particle system and realistic scene data is presented. By computing specific horizontal distance and height difference, dynamically getting the initial attribute of fire water particles, the not real enough condition of fire water column particles is solved.