Advanced Materials Research Vols. 433-440

Abstract: This paper has analyzed the entire testing task sets of the third-party software testing agencies. And for how to set these tasks to the process of projects’ research and development, proposed a new Software Process Model, which is an evolution of the helix structure. The model was based on the ideas of agile. It may become the first one that assigns the testing task sets to the whole process of software development in an independent third party perspective. The agile process model in this paper is major for the heavyweight projects’ research and development. Currently, this agile process model which is based on the independent third party has been adopted in practice projects, and achieved good results.

Abstract: To solve the data security issue in intranet massive storage system, a Multi-Protocol Secure File System ( for short MPSFS) is designed. Firstly, the MPSFS supports the access of users with different protocols, and provides the unified access interface, so can achieve high performance in data storage and retrieval; secondly, with the help of other technologies such as identity authentication, access control and data encryption, the MPSFS can effectively ensure the data security in the intranet storage system. By the experiment, the MPSFS can provide good security and scalability for intranet massive storage system, and has less effect to the network I/O performance.

Abstract: This paper has a discussion on the new industrial protocol – EtherNet/IP protocol (EIP), which is a new standard of field bus standard. It is an open industrial networking standard that supports real-time I/O messaging, explicit message exchange. It uses commercial off-the-shelf Ethernet communication chips and physical media. In this paper we have done a detailed study on the composition of EIP packet, EIP command of its application, EIP message transfer and it industrial implementation architecture.

Abstract: A new-type of intelligent electric load control switch composed of three separate magnetic latching relays is presented. A method of AC current and voltage sampling and root mean square (RMS) calculation is employed to ensure reliable operation of the electric load. The method possesses such features as less hardware requirements, good real-time performance, high frequency interference eliminating. Current zero-crossing break is the most outstanding advantage of the switch. In order to guarantee the magnetic latching relay shut off at current zero-crossing point accurately in long term operation, a dynamic compensation for delay time is proposed based on all-around research of the properties of magnetic latching relay actuation time. Finally, an application of the switch in the electric load control system constructed via CAN bus and ZigBee network is well brought forth.

Abstract: Automatic Automatic 3-D unorganized point data registration technique,which maps 3-D datas measured from multiple viewpoints into a common coordinate space, is a key technique for reverse engineering.In order to improve data matching speed, a parallel detecting algorithm with local geometric feature based on CUDA architechure was proposed.Firstly,local geometric feature points were extracted from original data sets,and then the correspondence between them are computed, at last this registration algorithm was implemented in parallel pattern on CUDA.The comparison experiments show that this algorithm is efficient and robust against noise.

Abstract: Based on the system hardware structure and the function of ARM system and the function of FPGA circuit, the realization of multi-COM protocol switch server is put forward. This way not only enables the developing work to be divided clearly into different parts, but also enhances the expansibility of the server, sustains complex functions, and makes the realization simply. This system has been realized and had a good effect when it works.

Abstract: In this paper, the disadvantages in traditional item bank are analyzed, and traditional Online Judge is improved to fit the course teaching. Then, Algorithm Design and Analysis course is taken as an example to demonstrate how to apply COOJ to course teaching. After that, COOJ's advantages are analyzed against traditional Online Judge and Web-Based Collaborative Learning Platform.

Abstract: This article analyses ecological environment in three jiang yuan area, and deeply studies main technical points of environmental protection. While it takes examples from environmental improvement on Qinghai-Tibet highway,puts up main technical points of environmental protection in Xining-Yushu road, and suggests research interests of environmental protection in three jiang yuan area. So this article plays an important guidance for road construction in three jiang yuan area.

Abstract: Methanotrophs-bearing liquid cultivated from the aged refuse has been proved to be effective for improving methane oxidation ability of landfill cover materials, and this is significant for CH4 emission control in landfill site. Optimization of mixed-cultivation conditions of methanotrophs from the aged refuse was studied in this paper. It was demonstrated that the best inoculums mode was using supernatant liquor of the aged refuse and nitrate minimal salt medium (NMS), and the lag phase of the growth was only 37 hours. The optimum growth of methanotrophs was observed at 28~35°C. Paraffin was attested to be useful for mixed methanotrophs cultivation and the highest methane oxidation rate reached 4mL/h with paraffin added.

Abstract: Secondary effluent from WWTPS still contains a large number of microorganisms, therefore, disinfection is essential. There are many disadvantages in using traditional disinfection methods, so the combination of disinfection techniques is a new research direction. Ozone combined with ultrasound is one of them. In this experiment, the inactivation of the total coli forms, color removal and UV254 removal of secondary effluent by a combination of ultrasonic (frequency20 kHz; power100W) and ozone disinfection was investigated. The results show that the effect of the synergistic action of 30s US and ozone disinfection is superior to the effect of individual ozone disinfection. After 15min synergistic disinfection, the total coli forms inactivation rate is up to 99.9%, simultaneously color removal rate to 80% and UV254 removal rate to 52%. Compared with individual ozone disinfection, reaction time was reduced by 5 min.