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| 1 | Optimizing Real-Time Performance of 3D Virtual Mining Environment with MultiGen Creator显示文摘System optimization plays a crucial role in developing VR system after 3D modeling, affecting the system's Immersion and Interaction performance enormously. In this article, several key techniques of optimizing a virtual mining system were discussed: optimizing 3D models to keep the polygon number in VR system within target hardware's processing ability;optimizing texture database to save texture memory with perfect visual effect; optimizing database hierarchy structure to accelerate model retrieval; and optimizing LOD hierarchy structure to speed up | WANGWei-chen JIANGXiao-hong HANKe-qi HANWen-ji | 2004 | Computer Aided Drafting,Design and Manufacturing2004，14，1： | 12 |
| 2 | Shape Modification and Deformation of Parametric Surfaces显示文摘A new method for shape modification or deformation of all kinds of parametric surfaces is presented. Instead of using any control mesh and designing any auxiliary tools for modification or deformation, this method only needs to multiply the equation of the original surface by several shape operator matrixes so that deformation effects are achieved. Due to introducing interactive control parameters with different properties those parameters can be changed to get more ideal effects of deformation or shape modification. The core of the method is that so-called cosine extension function is proposed by which the shape operator matrix can be created. Experiment shows that the method is simple, intuitive and easy to control, and diversified local deformations or shape modifications can easily be made via small and random variations of interactive control parameters. | Wang Xiaoping1 Ye Zhenglin1 Hu Xiaomin2 1. Department of Mathematics and Information Science, Northwestern Polytechnical University, Xian 710072, China 2. School of Science, Hangzhou institute of Electronic Engineering, Hangzhou 310037, China | 2002 | Computer Aided Drafting,Design and Manufacturing2002，12，1： | 10 |
| 3 | Numerical Simulation of Injection Molding Cooling Process Based on 3D Surface Model显示文摘The design of the cooling system of injection molds directly affects both productivity and the quality of the final part. Using the cooling process CAE system to instruct the mold design, the efficiency and quality of design can be improved greatly. At the same time, it is helpful to confirm the cooling system structure and optimize the process conditions. In this paper, the 3D surface model of mold cavity is used to replace the middle-plane model in the simulation by Boundary Element Method, which break the bottleneck of the application of the injection molding simulation softwares base on the middle-plane model. With the improvements of this paper, a practical and commercial simulation software of injection molding cooling process named as HsCAE3D6.0 is developed. | CUIShu-biao ZHOUHua-min LIDe-qun | 2004 | Computer Aided Drafting,Design and Manufacturing2004，14，2： | 8 |
| 4 | The 3D Modeling of Blades of Multiphase Flow Helico-Axial Pump's Rotor Based on Solidworks显示文摘The structure of multiphase flow helico-axial pump's rotor and how to model the rotor,especially the blades of the rotor,based on the Solidworks software.More important,the principle of the blade design is mainly introduced.Under the guide of the principle,the 3D coordinates of the blade data points can be got by matlab programming.In the paper,the design step and the modeling step are particularly described through a concrete example. | LI Zeng-liang ZHI Rui-ping ZHAO Chuan-wei WU Hai-yan GUAN Yu-gang | 2011 | Computer Aided Drafting,Design and Manufacturing2011，21，2： | 8 |
| 5 | Mesh Generation from Dense 3D Scattered Data Using Neural Network显示文摘An improved self-organizing feature map (SOFM) neural network is presented to generate rectangular and hexagonal lattic with normal vector attached to each vertex. After the neural network was trained, the whole scattered data were divided into sub-regions where classified core were represented by the weight vectors of neurons at the output layer of neural network. The weight vectors of the neurons were used to approximate the dense 3-D scattered points, so the dense scattered points could be reduced to a reasonable scale, while the topological feature of the whole scattered points were remained. | ZHANGWei JIANGXian-feng CHENLi-neng MAYa-liang | 2004 | Computer Aided Drafting,Design and Manufacturing2004，14，1： | 8 |
| 6 | The Study of RAIM Performance by Simulation显示文摘Receiver Autonomous Integrity Monitoring (RAIM) is a software algorithm available in some GPS receivers which gives an indication if the position solution given by the GPS receiver is suitable to use. The detail algorithm of the parity space method of RAIM technique is presented. Using FDI and FDE methods, the simulations of RAIM performance have been done in three different phases independently with respect to the bias of the fault satellite. Case study of simulation results is discussed and each performance of RAIM is analyzed. According to the analysis of simulation results, the parity space method of RAIM can meet the integrity requirements for nonprecision, terminal and enroute flight phase. It also indicates that the results of performance of FDE are better than that of FDI. | AHMED I. Abidat | 2006 | Computer Aided Drafting,Design and Manufacturing2006，16，2： | 8 |
| 7 | LOCAL INTERPOLATING BLENDED B-SPLINE SURFACE AND ITS CONVERSION TO THE NURBS SURFACE显示文摘LOCALINTERPOLATINGBLENDEDB-SPLINESURFACEANDITSCONVERSIONTOTHENURBSSURFACEWangLazhu;ZhuXinxiongLOCALINTERPOLATINGBLENDEDB-SPLI... | | 1994 | Computer Aided Drafting,Design and Manufacturing1994，4，2： | 7 |
| 8 | Key Technology in Developing Web-Based Engineering Drawing CAI Software显示文摘Key techniques to improve the quality of developing Web-based engineering drawing CAI software are discussed and some experience in applying commercial tools for generating vector drawing, concise representation of 3D solids, real-time interactive animation, data management etc. is illustrated. A Web-based Engineering Drawing CAI software 'Solid Projection' has been implemented by using these techniques. | Feng Kaiping Zuo Zongyi (Guangdong University of Technology, Guangzhou 510090, China) Wen Junwen (Physics Department, Zhanjiang Normal College Jinhua 316101, China) Miscillaneous | 2000 | Computer Aided Drafting,Design and Manufacturing2000，10，2： | 7 |
| 9 | The combination of user centered design and industrial design: Balance between subjective and objective design显示文摘Traditional Industrial Design has been an important aspect in the New Product Development process within the last decades. User centered design is a growing research field for product innovation which needs support from both design knowledge and research methodologies. Both TID and UCD focus on user's perspective when doing multi-disciplinary work. They take care of style, usability, and balancing the users need and reality. The skills from TID help design expression and realization to communicate efficiently with other participants by informative images and real prototypes. The methods from UCD help the idea generation and opportunity discoveries by facilitating workshops and conducting interview with participants. TID and UCD represent different perspectives of the subjective and the objective respectively. | DAI Zheng ólafur ómarsson | 2012 | Computer Aided Drafting,Design and Manufacturing2012，22，4： | 6 |
| 10 | A New Design of Student Apartment Bed Based on Kansei Engineering and Ergonomics显示文摘Aiming at the defects of the products available on the market at present and basing on the Kansei Engineering and Ergonomics, a new kind of student apartment bed which can prove its humanity more clearly is designed, and its design direction is gotten through the questionnaire and the design starts from the real actual needs of students. After the original design was finished, the later investigation on the students was engaged with and made the engineering analysis. The conclusion is that the sum of 'perfect' and 'good' membership rates is up to 64%, hence the comprehensive assessment of the design is perfect. That is to say, this design is able to realize and meet the needs of users, and there is no doubt that it will have a good business prospects. | SU Ming-yu YANG Guang-hui | 2014 | Computer Aided Drafting,Design and Manufacturing2014，24，3： | 6 |
| 11 | A noise removal algorithm for DR Images based on adaptive estimation of threshold显示文摘When DR (Digital Radiography) images are filtered, it is necessary to preserve the edges and key details. But the existing methods may inevitably take fine details mistaken for noise to remove. In order to solve the problem an improved anisotropic diffusion filtering model is proposed. Firstly, a novel diffusion function is introduced based on Perona and Malik model, which well overcomes the high rate of convergence. Secondly, the gradient threshold is modified to an adaptive estimation function, so it is better at adaptive threshold regulations according to the pixels and iteration times. Finally, the edges are extracted from the restored images and the results are evaluated quantificationally. It is shown from the experiments that the proposed method is effective not only in noise reduction but also in details preserved. | XIONG Bangshu JIA Bei YU Lei ZHAO Pingjun | 2012 | Computer Aided Drafting,Design and Manufacturing2012，22，4： | 5 |
| 12 | Finite element analysis of shape control for continuous hot rolling mills of super wide strip steel显示文摘The efficacy of shape control is the core of this technology and the main basis of automatic shape control system model designing.This passage constructs the three-dimensional elastic deformation model of CVC plus roll system in 2250 mm hot rolling mill.Comparing and analyzing different influence of working factors on control characteristic,the shape control characteristic of CVC plus roll system in its whole work time is studied,and the cause is analyzed and the difference of the roll gap curve and crown adjustable area in early and latter work time is compared.The outcome has crucial meaning in both theory and production. | YANG Guanghui LI Yuqi GAO Yang | 2013 | Computer Aided Drafting,Design and Manufacturing2013，23，1： | 5 |
| 13 | A research on the contact stress of roller bearing based on crowning analysis显示文摘According to elastic contact theory,contact model between roller and race is established.Compared with the Hertz results,the results are proved,based on which contact stress distribution of different crowning and initial contact length is given,then the appropriate value is derived.On the basis,inertia force and different radial force is given into consideration.Via analysis,it concludes that under balanced pure radial load condition the largest contact stress between roller and race increases along with crowning value increasing.With the same crowning value,the largest contact stress between roller and race decreases in the first and increases at the end along with initial contact length increasing.Contact stress between roller and outer race increases along with revolution speed increasing. | XU Juan NIU Qingbo QI Huaming ZHANG Li GUAN Meng | 2012 | Computer Aided Drafting,Design and Manufacturing2012，22，2： | 5 |
| 14 | Topography Image Segmentation Based on Improved Chan-Vese Model显示文摘Aiming to solve the inefficient segmentation in traditional C-V model for complex topography image and time-consuming process caused by the level set function solving with partial differential, an improved Chan-Vese model is presented in this paper. With the good performances of maintaining topological properties of the traditional level set method and avoiding the numerical solution of partial differential, the same segmentation results could be easily obtained. Thus, a stable foundation for rapid segmentation-based on image reconstruction identification is established. | ZHAO Min-rong ZHANG Xi-wen JIANG Juan-na | 2013 | Computer Aided Drafting,Design and Manufacturing2013，23，2： | 5 |
| 15 | Parameter Selection and Performance Analysis of Mobile Terminal Models Based on Unity3D显示文摘Mobile platform is now widely seen as a promising multimedia service with a favorable user group and market prospect. To study the influence of mobile terminal models on the quality of scene roaming, a parameter setting platform of mobile terminal models is established to select the parameter selection and performance index on different mobile platforms in this paper. This test platform is established based on model optimality principle, analyzing the performance curve of mobile terminals in different scene models and then deducing the external parameter of model establishment. Simulation results prove that the established test platform is able to analyze the parameter and performance matching list of a mobile terminal model. | KONG Li-feng ZHAO Hai-ying XU Guang-mei | 2014 | Computer Aided Drafting,Design and Manufacturing2014，24，3： | 5 |
| 16 | Hibernate Combined TableViewer in the Application of Medicines Inventory Management System显示文摘To solve the data persistence problem in the management system, this paper used the popular object-relational mapping framework Hibernate to achieve the persistence layer which in a medicines inventory management system. This paper described the advantages and principles of the Hibernate, and then showed the written work of the configuration files, mapping files, persistent classes, etc. Finally, the paper showed how to display the specific data information in the TableViewer based on the Eclipse RCP framework. It is observed that, operating the objects in the Hibernate framework is more flexible and efficient than using JDBC directly. Ad in addition, the application based on Eclipse RCP framework can take over many excellent features of Eclipse, and the developers can improve their efficiency by these features. | HONG Wen-qiang CHE Chao ZHANG Qiang WEI Xiao-peng | 2014 | Computer Aided Drafting,Design and Manufacturing2014，24，2： | 5 |
| 17 | Back Propagation neural network modeling for warpage prediction and optimization of plastic products during injection molding显示文摘 | Fei Yin Huajie Mao Lin Hua Wei Guo Maosheng Shu | 2010 | Materials and Design2010，，4： | 4 |
| 18 | Nursing bed used in the smart home environment显示文摘According to the bedridden patient's physical condition,one kind of electric nursing bed which can be used in the smart home environment and realize many` kinds of posture transformation.This paper introduces the mechanical system design of the electric nursing bed and the method of integration with the smart home environment,designs the combined bed board and the mechanical structure of posture transformation,remote controlling equipments in the smart home environment. | QIN Haichun ZHAO Cong WU Bo ZHANG Li | 2013 | Computer Aided Drafting,Design and Manufacturing2013，23，1： | 4 |
| 19 | Image denoising using statistical model based on quaternion wavelet domain显示文摘Image denoising is the basic problem of image processing.Quaternion wavelet transform is a new kind of multiresolution analysis tools.Image via quaternion wavelet transform,wavelet coefficients both in intrascale and in interscale have certain correlations.First,according to the correlation of quaternion wavelet coefficients in interscale,non-Gaussian distribution model is used to model its correlations,and the coefficients are divided into important and unimportance coefficients.Then we use the non-Gaussian distribution model to model the important coefficients and its adjacent coefficients,and utilize the MAP method estimate original image wavelet coefficients from noisy coefficients,so as to achieve the purpose of denoising.Experimental results show that our algorithm outperforms the other classical algorithms in peak signal-to-noise ratio and visual quality. | YIN Ming LIU Wei KONG Ranran | 2012 | Computer Aided Drafting,Design and Manufacturing2012，22，2： | 4 |
| 20 | Analysis of the method on industrial design guided by individual spontaneous behavior显示文摘There is a close relationship between individual spontaneous behavior and Industrial design. As individual spontaneous behavior can sent especial meaning for industrial design, there is a great necessity for creating design guided by this behavior. The design method carries out in four steps, first step is to focus on the analysis of individual action phase, pay attention to the exploration of the relationship between actions and tool ,and then list the importance order in the action phase, the third step is to take out the in-depth anatomical analysis of the stage , analyze the reason of the operational difficulty .and at last carries out the design concept to resolve the problem. All in all, this method revolves around the main stage of spontaneous behavior, and analyzes it in interim and solves the problem in stage. | GAN Yan | 2012 | Computer Aided Drafting,Design and Manufacturing2012，22，4： | 4 |
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