Advanced Materials Research Vols. 403-408

Abstract: The paper researchs on the TCP/IP based Multi-Role virtual surgery simulation training system, which is an intelligent surgery simulation training platform .It make a comprehensive application of visual simulation technology, force feedback technology and Human-Computer interaction technology. Visual simulation technology includes virtual reality, artificial intelligence and dynamic modeling. The use of the TCP/IP interfaces expands the number of user and realizes Multi-Roles collaborative in the same virtual simulation surgery training.

Abstract: The present work is devoted to the theoretical interpretation of interaction of CO molecule with Pd-doped α-Fe₂O₃ (001) using density functional theory (DFT). Two doping types were taken into account, which either a pair of Fe atoms of α-Fe₂O₃ (001) surface was replaced by Pd or a pair of Pd atoms embedded into the vacancy between surface layer and sub-surface layer of α-Fe₂O₃ (001). Three different active sites of the α-Fe₂O₃(001) surface and the Pd-doped α-Fe₂O₃(001) surface were considered for the interaction between CO and these surfaces. We found that the binding energy of CO on Pd-doped α-Fe₂O₃ (001) surface was much more than that of the clean α-Fe₂O₃ (001) surface. Results indicated metallic atoms are a Subscript text ctive site for adsorption of CO molecule, and the S(001) while interaction between CO molecule and surface doped by replacing Fe atom with Pd atom, stronger interaction happen between CO molecule and Pd embedded-doped α-Fe₂O₃ (001) surface than that between CO molecule and the ideal surface, leading to the formation of CO₂ precursor species.

Abstract: The resonant tunneling diodes (RTDs) are the quantum tunneling electronics in nano-scale size and have many interesting and valuable properties. Hence, they have been found numerous applications in high-speed digital and analog circuits to decrease the physical size and speed up the processing. This paper addresses the RTD based cellular neural/nonlinear networks (RTD-CNN). To verify its capacity, RTD-CNNs are employed to implement noisy removal, edge extraction and image inversion. A series of simulations demonstrate the effectiveness of the RTD-CNNs in promising applications in image processing.

Abstract: This paper is concerned with the robust stabilization problem for a class of stochastic markovian jump systems with Time-Varying delay. By applying a new Lyapunov-Krasovskii functional, a novel Delay-Dependent stabilization criterion for the stochastic Markovian jump systems is derived in terms of linear matrix inequalities(LMIs). When these LMIs are feasible, an explicit expression of the desired state feedback controller is given. Designed controller, based on the obtained criterion, ensures asymptotically stable in the mean square sense of the resulting Closed-Loop system for all admissible uncertainties and time delay.

Abstract: Ogre (Object-Oriented Graphics Rendering Engine) is a scenario-oriented, versatile 3D engine developed in C++ language. Its serves the purpose of allowing the developers easier and more direct usage of hardware acceleration in the development and applications of 3 dimensional graphics system. This library has hidden all details involved in bottom system library (for example: Direct 3D and OpenGL) and provided an interface based on world object and other intuitions. The Ogre engine affords developers an open source, Multi-Systems support as well as comprehensive 3D drawing engine abilities among other features. WPF was a user interface framework developed by Microsoft based on NET Framework 3.0 architecture basis. It has the advantage of allowing the programmer fast processing of complex controls and interfaces. Furthermore, it breaks the limitations in traditional MFC (Microsoft Foundation Class) format interface drawing. The purpose of this paper is to set forth answering the question of how to combine the applications of both technologies and realize the complete separation between interface engineers and engineers. In addition to improving working efficiency, how to develop robust application software that has visually pleasing interface for software companies.

Abstract: Minimally Invasive Surgery Simulation Training System based on VR technology is comprised of intelligent 3-Dimensional images VR software system and simulated surgical instrument with high perceptibility and high precision force feedback characteristics. Real time VR and simulated instrument with force feedback interact with the operator in real time, achieve high immersive virtual surgery scenario, and allows trainees to perform and improve the whole surgical procedures. By applying synchronized network video server and real-time communication server based on TRP/RTCP, the instructor can view all details of an operator's surgical procedure by a network terminal, and provide real time technical guidance. The system covers minimally invasive surgeries of digestive, urinary, gynecological, thoracic, pediatric , etc.

Abstract: Highway is the primary foundation establishment of a city. Exact and timely evaluation for pavement condition plays an important role in keeping trafic flowing and safe, reducing accident, and bringing into play the estabhsh function of roadways. Base on the attribute recognition theory which makes efect identification and analysis for things, the attribute recognition model of evaluation for pavement condition is discussed, and the power weight is developed with the entropy method, which avoids the subjectivity and increases the reliability. This model introduced a simple and efective appraisal method of highway pavement condition.

Abstract: In this paper, taking the characteristics of NGI (Next Generation Internet) into account, and base on its network model and mathematical model, a probability theory based intelligent QoS multicast routing algorithm is presented. Under inaccurate information of QoS parameters, using fast searching ability of DE (Differential Evolution), the proposed algorithm tries to find a multicast routing tree with the maximum probability of meeting with QoS requirement under the given cost. Simulation results have shown that the proposed algorithm is both feasible and effective.

Abstract: This paper introduced the development of web automatic generating system. The system can automatically generate a keyword supporting network curriculum. It can track on student's learning process, collect the effective information, and provide analysis by computer servers, combined with education psychology theory, then give feedback to students by a suitable way. This can stimulate students' interest in learning, improve their attention and guide their further study.

Abstract: This article takes the management system of NC machine’s connection and assembly as a research object, and introduce RFID technology as well as the application of RFID. It establishes basic information management of NC machine, marking information management, assembly information management, serial communication and other functional modules. Then design engineering framework-a kind of visual management user interface- in VC platform. At last, it needs to do the mapping coefficient and data transmitting from the engineering framework to database by ADO database access.