[Show abstract][Hide abstract] ABSTRACT: Web applications need for extensive testing before deployment and use, for early detecting security vulnerabilities to improve the quality of the safety of the software, the purpose of this paper is to research the fuzzing applications in security vulnerabilities. This article first introduces the common Web software security vulnerabilities, and then provide a comprehensive overview of the fuzzing technology, and using fuzzing tools Web fuzz to execute a software vulnerability testing, test whether there is a software security hole. Test results prove that fuzzing is suitable for software security vulnerabilities testing, but this methodology applies only to security research field, and in the aspect of software security vulnerabilities detection is still insufficient.
[Show abstract][Hide abstract] ABSTRACT: With the development of information technology, electronic handbook is used commonly. The important of electronic handbook materials is growing, so that a model of word resource management system based on Open XML is submitted in order to realize materials' collection and sharing. And introduce the application of Open XML in Word resource management system.
[Show abstract][Hide abstract] ABSTRACT: This paper is an introduction to software performance automated testing and theory. It introduces the features of Open Xml storage and SQL Server storage. Then this paper sets three state scenes and chooses different test automated tools respectively. Finally, it uses tools to monitor software performance index from these two data storage systems. Results are then analyzed, comparing the quality performance of different storage systems to the same state scene.
[Show abstract][Hide abstract] ABSTRACT: This paper use the unique imaging features of fisheye lens that leaflet picture contains a large amount of image information. In the research, we correct the image from the fisheye lens, then we finished the image registration and image the function of the system was realized and each module ran successfully. We use the c + + programming language to code the system, with the help of OpenCV function library, at last, the whole image of the borehole wall would appear in the screen.
[Show abstract][Hide abstract] ABSTRACT: With high compression ratio performance, fractal image compression technology becomes a hot topic of research of image compression techniques. However, the encoding time of traditional fractal compression technique is too long to achieve real-time image compression, so it cannot be widely used. Based on the theory of fractal image compression; this paper raised an improved algorithm form the aspect of image segmentation.
[Show abstract][Hide abstract] ABSTRACT: The traditional fault diagnosis expert system is dependent on knowledge acquisition of the experts. Knowledge acquisition is recognized as the "bottleneck" problem of expert system. In addition, there are also some limitations of adaptive capacity, learning ability and real-time. And artificial neural network with good fault-tolerance and associative memory function, as well as very strong self-adaptive, self-learning ability, just can make up for the limitations of traditional expert system. This paper will construct a new expert system with the artificial neural network into and fault tree. Besides fault tree and neural network, this article mainly introduces the system model of fault diagnosis of the fire control computer and sensor subsystem, the method and process of fault diagnosis. In this expert system, we use the object-oriented production rule to represent the knowledge, which solves the bottleneck problem of the diagnostic knowledge acquisition effectively. The inferential process begins with the abnormal event and finally finds all of the possible faults and the faulty component. For some possible faulty components, which have large number of fault samples, the neural network model can be used to diagnose. The training network of fault samples employs the BP neural network. Finally, simulation training results show that the fault diagnosis expert system based on the combination of fault tree and neural network is rational and effective in fault diagnosis of the fire control system, realizes perfectly the combination of new knowledge and old one, and can grasp the state of systems dynamically.
[Show abstract][Hide abstract] ABSTRACT: In this article, we demonstrate the thin-film-Ge surface PIN photodetectors. With thin Ge layer (~120nm including buffer layers),
the devices couple well with the incoming Si waveguide and achieve high responsivity due to the surface layout of the highly-doped
p+/n+ region. By shrinking the p+/n+ spacing of the device, the device exhibits high speed of ~20GHz at the bias of −1V.
KeywordsGermanium-Surface PIN structure-Photodetector
No preview · Article · Dec 2009 · Optical and Quantum Electronics
[Show abstract][Hide abstract] ABSTRACT: Pressure test is an essential work of Web application performance test and one of the important means to ensure software quality and performance. Pressure test can find a lot of unexposed problems under normal circumstances, which means that it can find more system bugs than others. Pressure test tests the load conditions of system, devises test scheme for the system performance indicators and verifies whether the system performance indicators meet the established target or not through the test results. This paper comprehensively investigates the pressure test in the case of a typical B/S system-Reporting Platform. By adopting the software performance testing concept and considering the impact factors on system function and evaluation index system of website operation, we carried out pressure test over the Reporting Platform Web site using VSTS (Full life-cycle management tools: Visual Studio 2005 Team System) testing tools and developed a process for conducting such tests. In depth analysis of the results of the pressure test, we found the bottlenecks which impacted the system performance, so as to lay the foundation for optimizing, adjusting the system and improving the system performance.