Advanced Materials Research Vols. 328-330

Abstract: Based on analysis on the difference between the single and double bridge Cone Penetration Test and CPTU, through CPTU application research on the determination of soil type on Pearl River Delta, the advantage on exploring the thin sandwich by CPTU has been studied. The existence of thin sandwich on soft soil is important on design and construction of soft subgrade, and must be identified strictly on the exploration process; associated with the total cone resistance-penetration depth curve and the pore pressure-penetration depth curve on the determination of soil type, especially on the distinction between the sand soil and clay soil, the accuracy of CPTU is higher than the single or double bridge Cone Penetration Test; based on CPTU application research on Pearl River Delta, the determination of soil type by CPTU can be more accurate than the drilling way, and the advantage for exploring thin sandwich by CPTU can be more various. The achieved result can provide a foundation for further study for CPTU application research on engineering exploration.

Abstract: Figuring technique on a back-strap loom of Li nationality is a key to study on the most primitive form of figuring in ancient China. However, the previous studies on figuring technique on a back-strap loom of Li nationality were not very clear, and led to much misunderstanding. Based on our investigation on the spot of Hainan province, we introduce the arrangement principle of weave structure of brocade of Li nationality and the operation principle of figuring technique on the back-strap loom, at last we explain the operational process of figuring technique on a back-strap loom of Li nationality. It is concluded that figuring technique on a back-strap loom of Li nationality employs the dislocation arrangement of figuring parts.

Abstract: The curing process of polyurethanes was investigated with FTIR method. The curves of conversion (α)VS curing reaction time (t) at different temperatures were obtained .The curing reaction of the system was found to be second order reaction. The reaction rate constants and activation energy had been measured. Effect of the use lever of curing agent and temperatures on curing reaction was discussed. The results showed that when the mole ratio of NCO/OH is smaller than 1, the crosslinking reaction take place at high temperature.

Abstract: Based on the analysis of complex adaptive systems theory and classification of enterprise network, the article proposes that the enterprise network is a kind of CAS. Although the enterprise network has a variety of forms, they all have the basic characteristics of CAS: Aggregation, Identification, Nonlinear, Stream, Diversity, Internal model and Building blocks. The article discusses the complex adaptive features of the enterprise network which includes has active adaptive, multi-hierarchy nature, open, non-linear (butterfly effect), synergy and learning together and other characteristics, the enterprise network is made of a number of agents who are relatively autonomous and intelligent, each node enterprise in the enterprise network can be regarded as independent intelligent agents, in general the agents operate independently or semi-autonomous based on their own goal and ability of decision-making, as part of the system, these agents and their behavior have a high degree of coupling or dependency, the integrated level of system will depend on the coordination of the dependence. So the article gives the behavior model of enterprise network agents.

Abstract: The heat of linear motor affects normal operation of the motor seriously. The accurate computation of temperature field will provide a theoretical foundation for the design and control of linear motor. A three-dimension thermal model of linear motor is created in this paper. As the linear motor is running back and forth in an adjustable speed, the mean effective current of linear motor can be calculated firstly. On this basis, the calorific value of windings is calculated. The heat transfer coefficient of linear motor in each surface is calculated when the linear motor is running in a low speed. Then the steady state temperature field of the flat linear motor is simulated by the finite element software ansys.

Abstract: Effect of Si content of Al-Si matrix on roll cast wire inserted strip was investigated in this paper. 99.5%Al, Al-4%Si , Al-12%Si and Al-18%Si were used as matrix. Slit depth of the nozzle, superheat of melt, wire-diameter and roll speed was chosen as the casting parameters, too. Addition of the Si was useful to prevent the reaction between the matrix and the wire. A downward melt drag twin roll caster could cast the wire inserted strip of the Al-Si matrix of which Si content was ranging up to18%. Composite strip, which matrix was hyper eutectic Al-18%Si, could be cast at the speeds up to 20m/min. The gap between the wire and matrix became thin when the superheat was high. When the slit depth of the nozzle was too shallow, the wire could not be inserted in the strip. The thickness of the wire inserted strip became thinner as the roll speed became higher.

Abstract: This article discussed on the technology introduction and innovation of Shanghai modern silk reeling industry. It took the Jardine Silk Factory as an example at first, introduced the silk reeling process in Shanghai modern silk reeling industry. Then it discussed the introduction and production of silk reel machine, made a specific analysis on the sitting system reeling machine, standing system reeling machine and double cocoon reeling machine.

Abstract: Referring to research findings of existing traffic survey instrument, this paper bases on electronic traffic survey counter to insert GPRS module, micro-program controller, vehicle type selection keyboard and direction selection keyboard, and utilizes computer technology to establish data processing platform, studies and designs the traffic survey system on the basis of GPS, GPRS and GIS. This system can realize real-time monitoring on surveyors, accurate and timely transmission and processing of survey data, and automatic analysis and management of survey data.

Abstract: Since the IPTV business in China has been carried out, the development of telecom operators is not always ideal due to the access restrictions of SARFT content, and broadcasting companies also need technical support to carry out IPTV services. This paper analyzed the cooperative game of SARFT providing content and telecom operators providing bandwidth respectively in IPTV industry chain based on the limited rationality, in order to obtain corresponding stable strategies to provide certain basis for correlative decision-making and policy formulation, thus promoting the positive development of IPTV business.

Abstract: There is a lot of power loss in the power transmission, and the loss comes from power transformers contribute very much to this. So the implement of energy efficiency grade for power transformers has great significance to the development of power transformer, which can wash out the high energy-consuming transformer, decrease the power loss, and increase the efficiency of power transmission. The energy consumption of transformer consists of no load loss and load loss. In this test, I analyze the experiments for no load loss and load loss with the “Minimum allowable values of energy efficiency and energy efficiency grades for power transformers”, ascertaining the transformer’s efficiency grade.