Advanced Materials Research Vols. 490-495

Abstract: Compared with mechanical gear, permanent magnetic gear has unique advantages which are high efficiency, noise free, zero friction, vibrationless, overload protection, etc. This paper introduced a novel coaxial magnetic gear with high speed radio and analyzed the efficient performance including peak torque, starting, braking, and no-loading procedures on the basis of calculating in finite element software Ansoft. The results prove that the novel magnetic gear is reasonable and efficient.

Abstract: A new method of die surface modification by ordinary Electrical Discharge Machining (EDM) is described. First, the surface modification mechanism by EDM is studied, which is different with ordinary EDM. Secondly, the influence of important electric parameters on the effect of electric discharging coating in working fluid is analyzed, which is helpful to improve the coating layer. At last, the new type special pulse power supply with additional pulse current is designed. The special pulse power supply for electrical discharge coating behaves well, and the compacted coating layer without cracks deposited on the surface of die by EDM can be obtained, which can prolong the life of die

Abstract: Design of a monitoring system based on virtual instrument technology for a simple bridge. This paper discusses the bridge monitoring system structure, software and hardware. The system can realize functions such as data acquisition, real-time data display, online analysis, offline analysis, data management and so on. Therefore, the monitoring system can be applied to a variety of bridges. The presented monitoring system has an important guidance meaning and practical value for bridge monitoring.

Abstract: Diatomite coated with ɑ-Fe films were obtained by Chemical Vapor Deposition process. The resultant Fe-coated flaky diatomite particles had low densities. The results show that Fe coated diatomite flakes can be achieved, and that the coating consisted of ɑ-Fe nano-crystallite. The complex permeability and permittivity of the composites were measured in the frequency range of 1–18 GHz. The microwave absorption properties of these flaky particles are discussed. The results indicate that the flaky particles have potential to be used as a lightweight broad band microwave absorber.

Abstract: with the fast development of Chinese economy, the number of high-rise buildings has climbed rapidly and created major impacts consequently. In consideration of this, it is necessary to discuss the structural design of high-rise buildings as an important issue. In this article, the author analyzes the basic characteristics and main steps of high-rise building's structural design, and elaborates his own understanding of type selection and seismic design thereof. As high-rise buildings in China are increased at geometric rate, their types and functions have become increasingly complicated, and their structural system more diversified. In this process of fast growth, any omission or mistake is very likely to make the entire design more complicated or unsafe. Therefore, structural design of high-rise buildings is a lasting and complicated process, and also the focus and difficulty in architect's design. The author will hereby elaborate his thoughts on the structural design of high-rise buildings.

Abstract: This paper mainly study the relationship between the different shape of air-out tube and the wind velocity based on variable frequency centrifugal fan.Several common shape of pipeline spouts were tested in the static environment in this experiment,the test results were made data process and theoretic original discussion,and we deduced a formula about the relationship between the effective velocity and distance.Finally,we obtained the reference valuable spout shape in the practical spray engineering.

Abstract: For long distance water transmission project, choose a more effective control method is very import for safety and decrease loss in the emergency status. In the past, the serial regulate gate method is adopted oftentimes. However, its disadvantages are obvious, such as lower efficiency and rapid dropping speed of water lever which easily lead to landslide. This paper proposes a synchronous regulating gates method for emergency control which ensures the flow of open channel can reach new status of uniform flow in shortest time. The results of simulation show the dropping speed of water level using synchronous regulation method is significantly smaller than serial regulation method. The total time requires significantly less than serial regulation method too.

Abstract: Mold cooling plays a crucial role in the plastic molding process. This paper caries on an analysis of the impact of the cooling system on plastic molding process and put forward three assumptions to simplify the cooling system mathematical equations, establishes a systematic mathematical models taking the cavity cooling water pipe for the study object, optimizes methods and processes , uses MATLAB tools to optimize the design, and gets the optimal solution of the important parameters of cooling system to achieve the reasonable set of the cooling circuits in the complex injection mold structure and optimization of production technological parameters so as to achieve the purpose to improve product quality, shorten cycle time and increase productivity by optimizing the design.

Abstract: The determination of the number of cavities is a very important part of the injection mold design process. In this paper, various factors influencing the number of cavities are analyzed comprehensively, a variety of methods are introduced for the calculation of the number of cavities, and the optimization principles for the reasonable choice of the number of cavities are proposed, for the reference of mold designers

Abstract: In this paper, the current intrusion detection systems are analyzed in the full study of the development trend of domestic and foreign country. According to the campus network can be divided into functional independence of the structural characteristics of the subnet, while taking full advantage of agent technology in the intrusion detection system technology, we have referenced to the agent technology and a variety of detection methods for the analysis and comparison, and have analyzed the existing distributed intrusion detection system ,we propose a monitoring and management center with a multi-agent intrusion detection model framework. This model uses a distributed architecture that combines network-and host-based intrusion detection method for intrusion detection.