Advanced Materials Research Vols. 308-310

Abstract: Power consumption of Internet is becoming more and more a sensible problem, which is of interest for both the research community and the general public. In this paper we have formally defined the power-aware multicast VN construction problem and setup an ILP model whose objective is to find a virtual topology on top of substrate network fulfilling all restrictions, while the power consumption of construction is minimized. In order to address the problem efficiently we develop a greedy algorithm: PMVNMH. The efficiency of the power-aware construction algorithm is evaluated by emulation experiment.

Abstract: Rubber products have durable, lightweight, and shockproof properties, which allow them to be used in various industries. As demand on products with elaborate shape and parts and minimized occurrence of burrs has increased in high-precision industries, particularly in IT, BT, and NT, moulding technology becomes an essential technology to develop core objects composing frames for assembly and elementary parts that produce ultra small machines and basic components of MEMS and NEMS. Despite the technological demand, rubber-related moulding technology has not been standardized, and its total process – shaping, design, production, and test – has not been systemized, which results in low productivity in rubber products. This study is to standardize and systematize the rubber product production process by evaluating the cost estimation of moulding production process and to improve occurring problems during the process. The subject of the study was burrless rubber product moulding process.

Abstract: Aiming at the existing trust issues under manufacturing environment. This paper proposes a trust model based on feedback evaluation, TMBFCM, from the characteristics of human of trust relationship of human society. The model proposed a set of evaluation indicators of cloud manufacturing services properties, introduced the dynamic trust mechanism for attenuation by time,established the service which cloud manufacturing services providers provided and the feedback evaluation and incentive mechanism given by the user of cloud manufacturing service, improved the dynamic adaptability of the model. The results show that, compared with the existing trust model, the evaluation results are closer to the true service behavior of cloud manufacturing services provider, it can resist all kinds of malicious attacks acts effectively, demonstrated good robustness and recognition.

Abstract: Material removal mechanisms of Al2O3-based conductive ceramics machined by electric discharge milling in deionized water are investigated. The main components of conductive ceramic samples are Al2O3 (80%), TiC (11%) and WC (9%). The material removal mechanisms by low electric discharge energy are mainly spalling and melting. The material removal mechanisms by high electric discharge energy are mainly melting, evaporation and spalling. With high discharge energy and insufficient cooling conditions, chemical reactions will happen, where TiC and WC are oxidized to dielectric TiO2 and WO3, which will slow down the electric discharge milling processand finally make it stopped.

Abstract: Polarization induced signal fading always has an influence up on the visibility of the interference stripe and the accuracy of system location in the distributed optical fiber oil &gas pipeline leak detection system. Base on distributed sensor system polarization characteristic, this paper analyses the visibility of the interference stripe with the changing of polarization. Designed a feedback control system based on double Mach-Zehnder is used to eliminate the input light polarization fading. This system can effectively suppress the polarization fading in fiber optical sensor, making interferometer fringe visibility tends to 1 and the equilibrium state of input light polarization always closes to the best input sate of interferometer.

Abstract: The clods of dirt are filled within reinforced concrete frame space, which composes raw soil composite wall. This structure has the advantages of lightweight, high strength, ecological and energy-saving and so on. In order to study the key building technology of raw soil composite wall’s structure, this paper analyzes and investigates from the structural materials, wall production and its connecting structure method, and has produced raw soil composite wall structure’s construction technology and relevant quality requirement, which provides the reference for the engineering application about the raw soil composite wall.

Abstract: Packaging plays an important role in decreasing the environmental impact and, simultaneously, improving well-being and safety of people. Due to a lack of time, ready-to-eat meal (RTE) offers more convenience choice to consumers than buying all ingredients and cooking at home. Thermoforming containers for RTE meals provides many packaging benefits such as protection and preservation, shelf life expansion, good appearance for display at point of purchase, convenience during transport and usage. However, thermoforming trays are made of plastic materials and are disposable packaging. This research project focuses on three parts: the study of the relationship between RTE food attributes and the structural packaging characteristics, the analysis of existing thermoforming structural design, and the synthesis of a new approach which takes the environmental impact into account for RTE packaging structures. The purposes of this research are (1) to investigate the technical design problems for these package’s structural characteristics by a thermoforming method, (2) to quantify the food packaging characteristics in relation to product attributes by using the perceptual mapping, as well as (3) to formulate a design guideline for the structural packaging characteristics which incorporates with the criterion of the environmental concern.

Abstract: Due to resource scarcity and worsening pollution on the environment, more and more people are attracted by green design. Some designs not only focus on energy saving, but also attach great importance to conveying green concept. Based on the case study of Japanese design and focusing on three aspects, material selection, structural design and style orientation, this article attempts to analyze the design works that reflect prominently the green concept. Therefore, people can deeply sense and appreciate the concept of environmental protection and eventually are beneficial educated and directed.

Abstract: An approach for the analysis of tooth contact and load distribution of straight beveloid gears with parallel axes is proposed. The approach is based on application of influence coefficient method that accommodates the influence of contact deformation and tooth deflection. Computer program has been written to calculate the distribution of pressure. Results have been analyzed and validated by comparison with studies carried out by the finite element method with the aid of ANSYS general purpose computer program. Suggestion has been given to minimize the drawback generated by stress concentration.

Abstract: Through indoor consolidation test and CPTU model test and CPTU in-situ test, the soil consolidation coefficient has been studied. Compared with the consolidation coefficient by indoor test equipment and CPTU, because in-situ test has been made by CPTU, but in indoor consolidation test the error caused by the disturbance and little size of clay soil sample has been existed, the soil consolidation coefficient by CPTU can reflected the soil consolidation characteristics more accurate than by indoor consolidation test. Compared with the consolidation coefficient by remolded clay soil of CPTU model test and the natural and un-disturbed clay soil of CPTU in-situ test on CPTU application research project on Pearl River Delta, the dissipation speed of excess pore pressure in CPTU model test is faster than in CPTU in-situ test; the horizontal consolidation coefficient value of clay soil by CPTU model test and CPTU in-situ test is close in the same magnitude order. The test result by CPTU model test is close to the result by CPTU in-situ test. The achieved result can provide a foundation for further study for soil consolidation coefficient by CPTU.