Applied Mechanics and Materials Vols. 198-199

Abstract: In order to resolve the problems of inefficiency and difficulty in educational software development, a new idea of modular method based on Flash technology is proposed in this paper. Under the guidance of advanced education, educational software constitutes are decomposed, the different module types are analyzed, learning modules are built by using Flash layer, different learning modules are integrated through a control module. It is indicated through practice that our method can greatly improve the efficiency of educational software development.

Abstract: This paper achieves the capture of Java-program-scope and joint-point-information based on process-control with AspectJ. This information includes: all joint points in particular classes, packages, and methods. It also includes all joint-points from beginning in program control-flow and those in which initial one is not included.

Abstract: With the development of computer architecture, new architecture cannot use the executable files on the old architecture and other architectures. In order to translate the x86_64 binary executable files to other architectures, we decode the binary files by a decoder generated by the New Jersey Machine-Code Toolkit through writing a specification of the x86_64 instructions. This paper give a brief introduce about the Specification Language for Encoding and Decoding and the x86_64 instructions characteristics, then make a detailed description on the specifications of the x86_64 instructions, and the result of the test proved that the decoder is correct and has high speed.

Abstract: First confirm the major factors which affect the reliability of the gear transmission system and make it as random variable, to establish BP neural network model. Make the test data as the training sample to train the neural network. Then base on the neural network to calculate and get the limit state function of the power turret, compile a program which can calculate the reliability of the power turret basing on the first-order second-moment method, and use this to calculate the reliability of the power turret transmission system. This method predigests the calculation model and reduces the calculation time.

Abstract: RAM disk uses the memory of a computer to construct a high speed, high reliable storage space. Though it is useful, there is little information on the development of RAM disk, especially on Microsoft Windows platform. On Windows platform, RAM disk has to be realized though writing Windows drivers. Implement drivers for Windows is a challenging task that only a small group of programmer can handle for many years. Now, with the new Windows Driver Foundation (WDF), this task is much easier. In this paper, Microsoft’s skeleton RAM disk driver in Windows Driver Kit (WDK) was analyzed and modified. At last, a full function, resizable RAM disk driver was got.

Abstract: The virtual instrument technology and auto test system software architecture for the Signal-Oriented test are first introduced, and then the requirement of virtual instrument driver module is analyzed. Finally, the design scheme of virtual instrument driver module based on Component Object Model component technology is given. Using the scheme, we developed 22 kinds of the test instruments driver. Experiment results show that the scheme improved the driver scalability, maintainability and reusability greatly.

Abstract: In the thesis, the author analyzes the characteristics of the experiments for automotive electric appliances system and describes the ideas for the virtual experimental system design for automotive electric appliances by taking the automotive charging system as an example according to the overall system design principle and the requirements on the experiments, so as to design the overall framework and functional modules for the experimental automotive charging system.

Abstract: Astronautical mutagenesis is a new and security agricultural breeding technique in recent decades. There are very large differences in physical environment between space and ground. After returning to the ground, new varieties are bred by the conventional breeding techniques. There are rich genetic types in mutagenesis. In this paper, “Longmu 801” alfalfa seeds were carried by “Shijian-8” recoverable satellite and some new types were selected and bred. The genetic variation of 11 mutated lines and their CK were identified by RAPD analysis, determination of leaf protein concentrates (LPC) and crude protein. For genetic identification, 100 primers were tested and 19 primers were selected in RAPD amplification. The amplified bands and polymorphic sites were rich. Polymorphism points and ratios of polymorphism point were statistical in detail. They were 326 and 15.04% respectively. For quality identification, it was compared with yields of alfalfa LPC and crude protein contents. The results showed that the range of yields of LPC was 6.52%-7.65%, range of nitrogen content was 43.79%-52.38%. Comparing with CK, variation ranges were -3.99%-+12.99% and -4.45%-+12.49%.

Abstract: In the paper, a new method for accuracy noise monitoring method is presented in detail. Noise level estimation and together two vibration signals have been used to predict the noise level. The results show that the sound signal method can effectively improve the accuracy of noise monitoring, which can be very useful for further research and noise control. This method is very convenient in the testing workshop.

Abstract: HW/SW (hardware/software) co-design method based on analysis and optimization of DFG (data flow graphic) model is introduced for SOPC (System on a Programmable Chip) used for digital instrument design in this paper. The method is based on the DFG model of the digital signal process algorithm and implemented with SOPC technology. The DFG model could help designer to divide the function into hardware and software respectively, therefore, the optimizing analysis at system level and circuit level of a SOPC used for portable logic analyzer shows that the DFG model is very useful for not only optimizing architecture and power consumption, but also HW/SW co-design.