Advanced Materials Research Vol. 739

Abstract: E-Box multimedia system is developed for the rich audio and video resource on the Internet and on its server side, it can automatically search and integration of network video and audio resources, and send to the client side for the user in real-time broadcast TV viewing, full use of remote control operation, Simply its a very easy to use multimedia system. This article introduces its infrastructure, main technical ideas and you can also see some details about server side and client side.

Abstract: In this paper, we present an online virtual university life system based on North China University of Technology life. Our system can help freshmen to get a better understanding of university life and life. We present the framework of our system and our system contains tasks management, campus information show, player roaming, system guidance, database management, etc. Finally, we implement our system and our experiment has proved our method is effective. Our method has been used in practical projects.

Abstract: Urine analysis is used in clinical medicine diagnosis method. In this paper, we introduce the urine analyzer working principle. Using the color recognition sensor chip, we design a fast urine analyzer, which is mainly constituted by several parts: LCD, keyboard control, serial communication, network interface, print, ARM Control unit, sample of sensors, motion control, color capture, brightness control, etc. we studies the test strip tests, the specific gravity of testing theory, the test principle of the turbidity , the color test, the principle of color sensor and gives a the flow chart of color test subprogram.

Abstract: This paper introduces the design, manufacturing and tests of a new CNC desktop milling machine dedicated to micro and meso-scale components. The paper discusses two types of micro-machine structure i.e. egg shape bridge and cantilever egg shape column. Both structures have been designed using an enhanced deterministic design method combining FEM and Taguchi methods. This has led to achieve tight geometric and kinematic errors and secured high machining accuracy observed in a couple of samples milled on the micro-machine.

Abstract: Lots of literatures indicate that the residual surface machined is not smooth and has fractal characteristics of self-similarity and self-affinity. So it is proposed that the residue model of mould can be expressed by the fractal interpolation. Firstly, fractal function and factor are selected rationally. Secondly, the number of iterations is discussed considering the acceleration, deceleration and error in the high speed milling as well. S type feed curve limiting variation is adopted to control the minimum distance of adjacent interpolation points. Meanwhile, the angle of the adjacent line is calculated to control the error. At last, the fractal interpolation process is given and the interpolation points are calculated. Those points meet the above demands and are taken as the appropriate datum for the finish machining.

Abstract: The construction procedures of shape functions in the moving least-square method (MLS) are complicated, in which many matrix multiplication and matrix inversion are included, so that the computational efficiency is low. Moreover, the choices of some parameters are influenced by the artificial factors, and the computational stability is poor. However, the construction procedures of shape functions in natural neighbour interpolation (NNI) are based on Voronoi diagram and its dual Delaunay triangulation, computational results are only related with the locations of the discretized nodes, and the computational stability is good. In order to study the differences in the computational accuracy, the computational efficiency, and the adaptability to the fitted objects between MLS-based shape functions and C¹ natural neighbour interpolant, the two higher-order continuous shape functions are introduced in surface fitting.

Abstract: Through studying the basic principle of super-fluorescent fiber source and combining with internal and external gain flattening technique, the spectral flatness of erbium-doped fiber amplified spontaneous emission (ASE) source with two-stage double-pass configuration pumped by two laser diodes (LDs) is improved. By optimizing the lengths of two-stage erbium-doped fiber (EDF) and adjusting the pump power of two LDs,the powers of C-band and L-band are matching, and the spectral flatness is superior to 0.5dBm from 1535 to 1610 nm. Utilizing the long period fiber grating (LPFG)-based thermally-insensitive gain flattening filter (GFF) fabricated by ourselves, the spectral protrusion is flattened near the peak of absorption wavelength of EDF, which make the spectrum not only cover the range of C-band and L-band, also realize the spectral flatness is better than 0.8dBm in the range of 3dB bandwidth. Application of the fiber ASE source in fiber Bragg grating sensing system could decrease the multi-signal peak power imbalance.

Abstract: This article described the inspiration and influence of the traditional culture of harmony of modern industrial design to prove the importance of play and harmonious culture embodied in the design ethics of the relationship between the three of balance and coordination, social and environmental sustainability.

Abstract: nterior interface is formed with the ground, side and top of interior space. By introducing the necessity of studying on the visual language of interior interface design, it analyzed the three visual vocabularies of interior interface design which are materials, form and color, and then it discussed the three visual grammar of interior interface design which are the comparison and coordination, symmetry and balance, and rhythm and rhyme. Then it made a summary of the characteristics of the visual language of interior interface design which are three-dimensional space existence, the goal of transmitting information, and aesthetic value. In the end, it pointed out the broad prospects of studying on the visual language of interior interface design which can be further studied.

Abstract: Based on the study of basic risk identification method, this paper analyzes domestic factoring risk identification methods and puts forward the basic model based on business process of domestic factoring risk identification, then provides the new ideas for risk identification, the paper lays the foundation to domestic factoring risk evaluation and control system, so it is good to construct a complete, standard domestic factoring risk management system.