Advanced Materials Research Vols. 926-930

Abstract: With the rapid development of computer graphics , image processing technology and three-dimensional modeling techniques, the approach of the Art Design extends to the computer-aided design from the original hand-drawn. Since three-dimensional computer graphics software effects processing and display of 3D modeling software, strengthens the beauty and expressions of Graphic Arts, In the individual performance, ordered, three-dimensional effects and innovative design, etc. all have different design performance and function. More importantly, with the help of computer, an advanced tool, so many design ideas and effects using traditional performance art design methods are difficult to be realized. What is more, Image and behaving more realistic visual communication has greatly improved the performance of the force.

Abstract: Architectural design is a creative work, the final results of it is image and visually expressed in the form of drawings. AutoCad technology and architecture design are the combination of computer application technology, especially the inevitable outcome of the development of computer graphics technology. Usage this software is not only able to design construction drawing with specification, beautiful buildings, and can effectively help designers improving the design level and work efficiently, this is the manual drawing. Mastering the AutoCad architectural drawings in other words is to have the advanced and standard of architectural design language tools.

Abstract: In this article, I analyzing the real problem and abstract the mathematical model to save it step by step. First I consider the mathematical model underlying one lane, in the hypothesis of even flow and single kind, I analyze the relationships between flow, velocity and density; I figure out the linear relationship of velocity and density, including both high-density and low-density conditions; the parabolic relationship flow and density follow so that I gain the best density when flow gets its maximum. Then I extend it to two-lane ( slow lane and fast lane that is equal to the overtaking lane and normal lane ) model: I expand and modify the above relationship in changing system to include the problem of road congestion, as well as the changing lane condition and the density affection from its downstream neighbor . Besides, three scenarios were discussed to control the situation of changing lanes. After this, I use a safety multi-lane highway overtaking control model based on BP artificial neural network to reduce the complexity of problem solving, and discuss the algorithm of the BP artificial neural network, and give examples and preliminary results. Short circuit in a multi-vehicle lane driving, driving behavior mainly consists of acceleration, deceleration and lane changing , the reality of traffic environment, the driver's decision-making are affected by many factors, such as driving rules , vehicle types and other basic physical attributes , characters and vehicle drivers’ plans , driving behavior control strategies and so on. I focus on the main factors to form of some the rules of changing lanes.

Abstract: CPM as a typical constant envelope modulation, timing synchronization method of research is becoming increasingly important. Articles research associate of constant envelope modulated signal timing synchronization methods, respectively, measured from the errors of timing synchronization, synchronize the system's structure, partial adjustment aspects are discussed. Theoretical analysis on the basis of performance in different conditions, and verify its performance. Meanwhile, encode with sync cascade simulation testing, discusses the overall robustness of the algorithm.

Abstract: According to the image formation model and the nature of underwater images, we find that the effect of the haze and the color distortion seriously pollute the underwater image data, lowing the quality of the underwater images in the visibility and the quality of the data. Hence, aiming to reduce the noise and the haze effect existing in the underwater image and compensate the color distortion, the dark channel prior model is used to enhance the underwater image. We compare the dark channel prior model based image enhancement method to the contrast stretching based method for image enhancement. The experimental results proved that the dark channel prior model has good ability for processing the underwater images. The super performance of the proposed method is demonstrated as well.

Abstract: Based on pedagogy, cognitive psychology, constructivist learning theory, supported by computer, the movement cognition learning strategy is put forward in experiment, which will achieve a Teacher-Student-Multimedia-multi-factor mutual teaching. This paper design the experiment, unvestigation question and achievement test to verify it. It proves that computer supported collaborative learning method increases the students interest in learning and skills in sports. The effectiveness of the method and teaching strategies are related to the use of Synchronous teaching and cooperative learning in P.E.

Abstract: As a result of the presence of noise in the measured vibration signal has a great influence on the results of calculation of fractal dimension, Therefore the empirical mode decomposition method for noise reduction of gear vibration signal is used, calculation fractal dimension, extraction fault feature of Gear in different conditions. The measured results show that: Different fault states have different fractal dimension, we can judge the fault type of gear effectively by the fractal dimension.

Abstract: The purpose of this study is to combine the technique of computer-aided design (CAD) and computer image processing with the imagination, creativity and experiences of coaches and sports researchers. By applying advanced techniques it is convenient, fast and efficient to design competitive sports exercises. The design is important to replace the traditional, backward, artificial design methods with modern advanced science and technology. Feasible study and approach were made in this field. The design of the computer-aided system for competitive sports exercises was completed. The feasibility of the system was demonstrated and its design principles, characteristics, working environment, structures, application of technique and result analyzed were presented.

Abstract: For wideband LFM signal and ultra-high speed moving target, the signal will have quadratic term in its phase after dechirp processing. The quadratic term is not the target structural feature, and is harmful for target recognition. To solve this problem, the paper proposes a new method based on spectrum envelope correlation to estimate the chirp rate. Firstly, the coefficient of the quadratic term was estimated by the correlation of 2 segment datas spectrum, and then the weighted linear least squares algorithm was used to improve the accuracy of the result. Simulation show that this method reduces the influence of high speed on the range profile efficiently.

Abstract: Quickly recovering and securing the advanced vehicle performance by changing structures, upgrading equipment become a key point to win the modern war. The armored vehicle is a complicated coupling system and the structure components are closely connected. Thus the change design is a complicated coupling system design problem. We provide the-state-of-art of the change design in response to environmental changes, and discuss the key technologies of armored vehicle adaptive change design responding to complex environment (AVACDCE). We also discuss design strategies and principles, change design decision and environmental adaptability evaluation, structural conflict elimination, performance optimization and layout optimization design in the limited space, and interface and assembly. In additional, we provide the design flow of the AVACDCE. Our studies can provide support for the armored vehicle adaptive change design responding to the complicated environment.