Applied Mechanics and Materials Vols. 513-517

Abstract: This study compares characteristics of ring core such as iron loss and relative permeability to be used in Slotless generator and yoke in Rotor part (magnet) which is used in coreless generator in order to apply slotless type to AFPM generator to which only coreless type is used . In addition, this study produces AFPM slotless generator to which ring core is applied and finds characteristics of power generation and efficiency.

Abstract: An unmanned aircraft as a growth engine recently emerging in the airline industry is expanding its range from conventional military purposes into the development direction for civilian use. As such, necessary skills, components and equipment is being developed at a rapid pace and the testing equipment and techniques for checking the reliability and durability of the developed technology is also needed. But so far, performance testing standards for the newly developed product is not clear and accordingly lacks the testing equipment and techniques. In the case of landing gear, it plays an important role for the safety of the aircraft during the take-off and landing and such importance is becoming clear for an unmanned aircraft as well. However, the research and development of the drop test device for testing the performance of the landing gear is yet insufficient. As such, by developing an improved version of the drop test device from its predecessor to inspect the safety and durability of the landing gear, we hope to increase the safety and reliability of the landing gear as well as having a goal of developing a checking device for the landing gear to be developed in the future.

Abstract: Firstly, the development of a general image processing program , and the image processing program , select a certain number of wool fibers MATLAB2010 SEM images of image processing software platform programming experiment to achieve clear image contains a description of the fiber diameter index , and based on the processed in previous studies, the diameter of the image measurement method based on the improved measurement methods and a detailed description of the experiment show that the method can greatly improve the recognition accuracy of wool fibers .

Abstract: Micromouse championship is an international robotics competition is an event where small robot micromouse solves a 16x16 maze. Use center rule + straight-right rule the micro-mouse can quickly explore the unknown maze and find their way from a predetermined starting cell to the central area of the maze, then back to the starting cell. Map out the maze and use flood-fill algorithm to find an optimal route from the starting cell to the center cell, the micromouse will run that route in the shortest possible time.

Abstract: A novel method for fabricating long period grating in grapefruit photonic crystal fiber (GPCF) is proposed and demonstrated. An 800nm femtosecond laser is adopted to scan a section of GPCF periodically point-by-point, resulting in effective refractive index periodic demodulation. High resonance of ~17dB is obtained with a grating length of 30 mm. The temperature sensitivity of resonant wavelength 0.03 nm/°C is obtained from 20°C to 120 °C. In addition, the relationship between resonant wavelength and surrounding refractive index (SRI), when LPFG immersed in refractive index of solution of different index, is also researched.

Abstract: Near-infrared (NIR) hyperspectral imaging technique (900-1700nm) was evaluated to predict the protein content of Tan sheep. This research adopted NIR hyperspectral imaging to get imaging information of 72 mutton samples, multiplicative scatter correction was used to spectral data preprocessing. The optimal wavelengths were obtained through linear-regression analysis, BP neural network combined with actual measured values were established the prediction model and verified this model. The results showed that the prediction effect of model was very well. Correlation coefficient (Rp) and root mean squared error of prediction (RMSEP) of the protein were 0.87 and 1.19. The results indicated that it is feasible to predict the protein content of Tan sheep for NIR hyperspectral imaging technique.

Abstract: Aiming at the increasingly severe problem of University Campus Safety, this paper uses AHP based on the analysis and study of daily management of universities to establish five indexes as first criteria layer, which are school safety management, the management of counselor, the family factor, the factor of college student, social safety environment, and nineteen safety evaluation indexes as second criteria layer. So the Stratified hierarchical structure model can be built. As a result the fuzzy comprehensive evaluation model can be established. More over this paper applies MATLAB to solve the calculation of the model. Through the empirical analysis the evaluation result is consistent with the actual situation. Finally the result shows that the model have an important guiding significance to safety management work in colleges and universities, besides it is feasibility and operability.

Abstract: In order to develop remanufacturing industry in China, building a perfect system of remanufacturing standard is an urgent need, which can ensure the stable and reliable quality of remanufacturing product. In this paper, a system framework of remanufacturing standard was put forward, based on the demands of remanufacturing industry development in China. Remanufacturing standards were divided into three levels, such as generic technology standards of cross-industry, important industry and major products. And then the remanufacturing standard system was analyzed and explained.

Abstract: In recent years, the strategic significance of the oceans is growing as well as its research and development needs. The underwater wireless communication is becoming more and more important. The underwater acoustic communication is one of the few mediums which can conduct the underwater transmission over a long distance, and the multipath effect is the major obstacle of affecting the systems high speed and high reliability. The characteristics of underwater acoustic fading and coherent multi-path channel are studied, and the model of underwater acoustic spreading spectrum (SS) communication system is established. The affect of coding technique on the systems performance are analyzed in detail. The improved RAKE receiving technical solution is put forward, whose simulation analysis and data in different combining ways are given. It is proved that the scheme can better solve the problem of multipath interference in underwater acoustic transmission.

Abstract: A model of ion energy distribution of dual frequencies capacitively coupled plasma (CCP) has been investigated, it is important to analyze these phenomenon and mechanism in order to control the microelectronic processes of integrated circuit and develop the base theories of plasma physics. We focused on the function of the ion energy distributions under high and low frequencies (dual frequencies) drive in capacitive discharges, we derived a theory model of the dual frequencies driven IEDs from analyzing theories. The model can analyze and predict the IEDs under different high and low frequencies driven, which results in accurate multi-peaks IEDs and energy width for the given control parameters, particle-in-cell (PIC) simulations are used to verify this model.