Advanced Materials Research Vols. 490-495

Abstract: The computer data mining technology can carry out an in-depth selection and processing on the potential data information. This new type of data mining technology has the ability to bring the values of all kinds of the information resources into full play. The sales of the agricultural products are the main source of the agricultural economic income. However, the agricultural products, during the period of entering in the market sales, are necessary to face up with all kinds of the logistics and distribution problems. From the perspective of the market value of the agricultural products, it is necessary for the enterprises to create the matching logistics systems and then meet the needs of the product sales. In accordance with this point of view, the author mainly carries out an analysis on the problems in the agricultural products logistics system based on the database resource mining in this paper.

Abstract: Parallel shaft split torque Transmission system Split torque Load sharing Abstract: The Newton method was applied to develop a system of equations of motion, the mathematical model includes stiffness of shaft supporting, position of gears, backlashes, time-varying stiffness, composite transmission errors, damping. The model was solved by variable step size forth/fifth-order Runge-Kutta method. The load sharing was affected obviously by asymmetry of gear backlashes, stiffness of shaft supporting and gear position

Abstract: The paper present a new lower-limb rehabilitation robot which consists of two mechanical legs with 3 DOF. The length of two mechanical legs and the angle of seat back of the rehabilitation robot can be adjusted over a certain range to fit various patients. The robot can exercise a single joint or multiple joints. It has three training modes: active training, passive training and assist training. In order to evaluate the rehabilitation effect of the robot, all joints were equipped with torque sensors and absolute position encoders. which is very important for the design of the rehabilitation robot. Besides, the rehablitaion traning can combined with sEMG/FES. The robot are installed beside a chair, the patient can sit or lie in the chair, which is more comfortable than standing or suspending. The analysis and experimental results demonstrate that the proposed rehabilitation robot is safe and reliable , the workspace can meets the needs of normal gait.

Abstract: In centerless grinding machine, piston pin is not convenient for online detection. It is better to be tested and sorted by automatic sorting mechanisms. The piston pin automatic sorting system designed in the paper is a machine based on the detection results to shunt qualified product, nonconforming product and waste automatically. Graph of movement, tree graph of function and morphological matrix charts are mapped, the mechanical movement scheme is determined. Further, the machine is drawn in three-dimensional form. It can shunt product automatically

Abstract: Research on section conversion of main arch ring and computation theory of lateral distribution in double-curved arch bridge. Through analyzing load experimental data of ShuiWen bridge, it demonstrates that the plane system finite element method is simple and practical compared to three-dimensional physical model in double-curved arch bridge computation, and the accuracy meets the design requirement .To double-curved arch bridge with spandrel arch, it can put loads distribute averagely on main arch ring to compute, the result is security without regard to joint action of above arch structure

Abstract: Based on popular and maturate application of the finite element analysis method, a numerical study is presented for effect of parameters, that are composed of lap length, adhesive thickness and ply styles of adherend, on maximum peel/shear stress of T700/EXOPY composite single-lap adhesive joints in this paper. Finite element simulations are carried out to analyze the peel/shear stress fields along the interfaces between the adhesive and the adherends. The simulation results show that the joint maximum peel/shear stress decreases with increasing the lap length, and peel stress of the joint of adherends of ply style [0/90/±45/0]S is much less, and the maximum shear stress in the interfaces between the adhesive layer and the adherends do not dcreases all the times with increasing the adhesive thickness. Good agreements between the present simulations and the experimental results are found.

Abstract: The light emitting diode (LED) street lighting systems based on solar photovoltaic technology have been used for some time. In this paper, we present an analysis aiming at assessing the feasibility and economic performance of a solar-powered street lighting system for a 1km road. The present study introduces the architecture of a classical solar-powered LED street lighting system and estimates the total investment cost for a 1 km highway with 2 lanes. The cost comparison of solar-powered LED lighting and sodium lamps using grid was carried out. The calculations show that the energy saving effect of solar-powered LED lighting systems is obvious but the initial investment of solar-powered LED systems is more than sodium lighting systems using grid. The investment cycle is about 2.2 years under the current conditions.

Abstract: Wind turbine technology has developed rapidly in recent years. Increasing component reliability to achieve 20% wind energy will require advancements in component design, materials, and testing methods to validate wind-turbine components in the harshest environments. At the core of many of the solutions offered by SMT is MASTA, our fully integrated software tool for the complete design, analysis and optimization of transmission systems. Designers & engineers can use MASTA to rapidly predict key transmission performance characteristics and to identify any design faults or weaknesses before any manufacturing is started, saving both time and money. MASTA’s reliable analysis techniques can improve the power, performance, reliability, and cost effectiveness of wind turbines. The mix of commercial and proprietary software will provide a complete assessment and optimization of the wind turbine through detailed dynamic and static analysis of key component functions for their efficiency and design life.

Abstract: Industry is playing an important role in national economy, the efficiency and developing trend of which is widely being paid attention to. However, severe environmental problems always emerge along with rapid industrial development at the same time. Based on the method integrating Principal Component Analysis and Super-efficiency Data Envelopment Analysis, this article introduces environmental factors into the system to evaluate Chinese industrial green-efficiency of year 2000~2008, indicating the current major problems which hinder coordinated economic-environmental development of Chinese industry, and putting forward the improving direction.

Abstract: The existing intellectual property rights laws and regulations have many limitations to the creativity design’s protection, along with the knowledge economy, information age’s arrival, the creativity design’s science sustainable development takes the safeguard urgently needed with it appropriate match’s legal regime. The article obtains from the creativity design as well as intellectual property protection’s basic property, to analyze its mutual relatedness, in the discussion creativity design the intellectual property protection present situation and the existence question, proposes the consummation creativity protection intellectual property protection system.