Advanced Materials Research Vols. 255-260

Abstract: To improve the performance of fault diagnosis expert system based on ANN IN fields of convergence speed, locally optimal solution and the low accuracy, an missile fault diagnosis expert system based on GA-BPNN is proposed in this paper. The genetic algorithm (GA) is adopt to optimize the weight and threshold of matrix while BP neural network realizes the non-linear map relations between failure feature and failure cause. The simulation results indicate that the method proposed in this paper significantly increase the convergence speed and globally optimal solution of neural network, the fault diagnosis accuracy of expert system for a missile has been improved also.

Abstract: According to the column experiment of loess and loess-quartz mixed mediums of different proportion, we studied the changing rule of the wetting front ,infiltration capacity, and infiltration rate with time. The wetting fronts of the three mediums followed power relation against time, the correlation coefficients were all above 0.99.The fitting formula based on the relationship between wetting front and the time, and the correlation coefficients were above 0.97. With the proportion of quartz sand in mixed samples increased, the infiltration coefficient and infiltration rate increased.

Abstract: On the principle of green planning for the industial production, the optimization model oriented to the environmental attributes is discussed and solved by the genetic algorithm improved with the cellular automata based on an artificial life game. The solution of the influencing factors in production offers the optimal operational parameters. To achieve those optimal parameters in actual production, some innovations and integrated technologies are applied in the process planning and multiple productions in workshop. Technical route, new organic methods, application technology and facilities for complex productions are contributed to improve the process planning and physical manufacturing for mass products. A comprehensive assessment system based on resource and environment attributes for production is developed for the process planning and operational optimization for each general product. The case study on the typical product of the valve used in thermal power generation is demonstrated in this paper. An optimistic estimate on the resource and environment impacts is obtained when the green optimization is entirely implemented for the process planning and production operation in the manufacturing workshop.

Abstract: Safety is always the key issue in automotive industry. The adoption of hi-tech automotive applications requires not only the development of reliable electrical/electronic/programmable electronic (E/E/PE) systems and communication protocols, but also an evolution in functional safety process management. ISO/WD 26262, the adaption of IEC 61508 for road vehicles, provides guidelines and standardized measurements for functional safety. This paper discusses how automotive microcontroller suppliers can deal with this new challenge by integrating functional safety management into product design and development. An ISO/WD 26262-compliant functional safety management flow is proposed, with specifications on techniques of corresponding safety assessment.

Abstract: Canonical Correlation Analysis (CCA) is a powerful multi-mode feature fusion method, but in traditional CCA, the optimization function is to find a pair of projections which make the mappings of the observations of the same pattern have the maximum correlation. It is an unsupervised subspace learning algorithm. This paper, we propose a Improved Canonical Correlation Analysis (ICCA) method which improves the optimization function by adopting the supervised relationships of the patterns belong to the same class. Our proposed algorithm is validated by the experiments on Jaffe facial expression database. Be compare with other methods, the recognition rate of our method is far higher than the PCA algorithm which only adopts single-mode image features and the traditional multi-mode CCA feature fusion algorithm.

Abstract: Focusing on the characteristics of the new high secure architecture of network computer, an operating system with internal network structure is designed. The operating system contains two subkernels: local kernel and network kernel, the two subkernels run individually in two subsystems. In order to communicate between two subsystems securely, an inter-subsystem private data transfer protocol is proposed and implemented in this paper. The private protocol is a connection-oriented protocol, it can provide reliable end-to-end connectivity Protocol format and protocol connection management based on signature verification are elaborated.

Abstract: The ring signature can guarantee the signer’s anonymity. Most proposed ring signature schemes have two problems: One is that the size of ring signature depends linearly on the ring size, and the other is that the signer can shift the blame to victims because of the anonymity. Some authors have studied the constant-size ring signature and deniable ring signature to solve these two problems. This paper shows that an identity-based ring signature scheme with constant size has some security problems by using an insecure accumulator and its verification process does not include the message m. Then we combine the concepts of “constant-size” and “deniable” to form an id-based deniable ring signature with constant-size signature. The new scheme with constant-size signature length is proposed based on an improved accumulator from bilinear pairings and it solves the problem of anonymity abuse.

Abstract: With the development of computer technology and network application, the safety of application has become one of the most important research problems in the field of information security. Firstly, the paper analyzes malicious attack approaches for applications. Secondly, this article proposes an application anti-attack model (AAM), and further presents the formal description of the model. Finally, this paper represents its good security properties and proves them.

Abstract: The push and pull force of Substitute Astronauts (SA) were assessed by analyses with Operation Force Measuring System (OFMS) in laboratory. Experiment comprised 3D dimensional (3D) measurements of hand force during operating in two different modes of manual control when SA grasp the handle of OFMS at comfortable position. 8 selected SA took part in experiments that were required to wear spacesuit. The investigation revealed that the longitudinal force components are often considerable amplified when the handle was pushed and pulled in the horizontal/perpendicular direction. In some cases, it equals to or exceeds the force in the direction of movement. The results demonstrate, when SA push and pull the handle at comfortable position by single hand, the respective sort orders of cumulative peak force in 3D directions are Fx>Fy>Fz(horizontal), Fy>Fz>Fx (vertical), Fz>Fy>Fx (lateral), the highest values of force occurs while pushing and pulling in the longitudinal direction.

Abstract: In e-commerce conditions, the relationships between channel members are more complex, including competition, cooperation and independent. With the help of Deutsch’s goal interdependence theory, we studied the perceived goal interdependence between distributors with suppliers, which will lead to the different channel benefits and results. This study improved that the distributors would put in more commitment and trust, to gain more economic benefits and occupational well-being, if they believed their goals were positively associates with the supplier’s objectives.