Applied Mechanics and Materials Vols. 121-126

Abstract: A heart sounds signal generator in the heart sound analysis instrument based on the LabVIEW is devised. The instrument is developed in PC. Heart sounds signal generator can according to need to produce a synthetic heart sounds signal for users to learn and use. The parameters setting are also discussed to find out the best for the each part. All the parameters can be set by user and the best ones are default values so that the instrument can fit other environment. The running test of this instrument proves it can generate and play heart sound precisely，and can be used as an assistance to show, play, and analyze heart sound

Abstract: Wavefront correction plays significant role in some fields like astronomical observation, laser processing and medical imaging, etc. Liquid crystal spatial light modulator ( LC SLM) is an ideal device for high-resolution wavefront correction because of its low cost, low consumption, large number of pixels and independent programming control of each unit. It is researched experimentally that LC SLM is used as a wavefront correction device and corrects arbitrary wavefront aberration. Wavefront correction is performed based on phase conjugation and periodic phase modulation with modulo-2π. The experimental results show that the PV value of the irregular wavefront aberration is 1.56λ, RMS value is 0.25 and Strehl ratio is 0.08 before correction, but the PV value of the residual aberration is reduced to 0.26λ, RMS value is 0.02 and Strehl ratio is increased to 0.97 which is approximated diffraction limit after correction. It is proved to be feasible and effective that LC SLM is used to the high-precision and high-resolution wavefront correction.

Abstract: Computer aided industrial design (CAID) brings qualitative changes for traditional industrial design on the sides of design method, process and theory. In this paper a new method is proposed with the aim of making the model capable of holding and manipulating the shape features in order to support the students in the design process. The key concept of this study is virtual model making system (VMMS) which consists of numerous sets of rules. VMMS is a new CAID method, and its technical ideas derive from the model making process of automotive product design. With this new CAID method, designers can do any kinds of styling operations on virtual model in the virtual environment generated by computer, such as the cutting or pasting operation on kinds of material. The system was described briefly and a new teaching method of industrial design course was introduced.

Abstract: In this paper, we propose a new defog algorithm based on fog veil subtraction to remove fog from a single image. The proposed algorithm first estimates the illumination component of the image by applying smoothing to the degraded image, and then obtains the uniform distributed fog veil through a mean calculation of the illumination component. Next, we multiply the uniform veil by the original image to obtain a depth-like map and extract its intensity component to produce a fog veil whose distribution is according with real fog density of the scene. Once the fog veil is calculated, the reflectance map can be obtained by subtracting the veil from the degraded image. Finally, we apply an adaptive contrast stretching to the reflectance map to obtain an enhanced result. This algorithm can be easily extended to video domains and is verified by both real-scene photographs and videos.

Abstract: The inelastic displacement spectra is established based on the elastic displacement spectra and the strength reduction factor, the calculation process of Displacement-Based Seismic Design is presented in this paper, the seismic design of high-speed railway bridge piers is conducted to verified the method. The calculation results show that, at the same performance target, the pier height is taller, the cross-section is bigger; at the same pier height, the performance target is higher, the cross-section of pier is bigger; the reinforcement ratio with the different pier height and performance target are the lower limit of calculation value, it mean that the lateral reinforcement ratio of piers can just meet the detailing requirements.

Abstract: this paper firstly designed a three-layer fabric and a fireproof air layer structure which is formed by the three-layer fabric, then studied fireproof and heat insulation performance of the designed structure by analysing results of a series of contrast experiments, finally got the best design project, experimental results show that it is feasibility to apply the designed air layer structure in fire safety work.

Abstract: Innovation is the key to the success of an enterprise. The innovation in products can make enterprises more competitive. The product function is the essential part in consumers’ demand for products. As a new trend of innovation in products, function integration plays an increasingly prominent role in the innovation design of products. Based on the essence of the innovation design--market demand, this paper analyzes the status and practical application of function integration in product innovative design, especially in the design of home appliances. The design trend of function integration in home appliances is also summarized. In the end, function integration is applied to the innovation design of heater practically, which is more humanistic and closer relationship between people and products.

Abstract: The emotional demand of modern consumers is analyzed and it is pointed out that products based on appealing design will be widely accepted and needed by people. Under the consideration of design originality and availability, five innovate methods are concluded to instruct the product appealing design which are bionics design on product shape or character of bionics in shape, idiographic design of materials, fun character during using experience, artistic character of market positioning and the feasibility of product customization. During the dissertation of above innovative methods, some excellent products are exampled to enlighten and verify the research conclusions.

Abstract: Modern educational technologies have been playing an important role in “blue-collar talent” staff quality education and training project in Xiasha Economic and Technological Development Zone of Hangzhou. The theoretical part of this article has explored the features and connections between the educational technologies and instructional system design in the “blue-collar talent” project, and has proposed the employee training model in this development zone according to the constructivism-based instructional system design theory. For this case, this article has made an in-depth analysis on the educational resources and performance evaluation in employee training in the development zone, and has also put forward the corresponding suggestions in accordance with the theme of educational technology in the “blue-collar talent” project.

Abstract: A polythiophene derivative with conjugated side chain were synthesized and characterized by LB method. It was found that this polymer can form stable monolayer at the air/water interface. It is important that the interaction between the polymer chains showed important role in regulating the spectra and interfacial morphology of polythiophene polymer, which have been characterized by spectral and morphological investigation. The absorption spectra of the polymer show two absorption peaks located in UV and visible region, where the visible absorption peak is attributed to the -* transition of the conjugated main chains while the UV absorption peak comes from the conjugated side chains. The necklace-like domains could be found and altered with change of surface pressure. The present work provided new insight into the design and interfacial assembly of polythiophene derivative with special molecular structures and substituted groups.