Advanced Materials Research Vols. 482-484

Abstract: As one of the most important data fusion methods used for dealing with uncertainty problems, the D-S evidence reasoning has been applied to lots of data fusion systems. In this paper, the evidence combination principles of D-S evidence theory are represented in detail firstly. In view of the deficiency of D-S method, one of improved evidence combination method is introduced. A given practical example demonstrates that the improved method can be applied to dominating multi evidences with great confliction, and the performance and reliability of fusion can also be improved.

Abstract: In order to understand the fabric properties of the bamboo, 1×1 rib fabrics were woven in knitting machine separately using entire bamboo yarns in 3 shares, cotton 2 and bamboo 1 yarns, and entire cotton yarns in 3 shares. The fabric properties were tested and compared with each other in this paper. The results show that, the bamboo rib fabric has a better drapability, rigidity and abrasion resistance than the cotton fabric, but its bursting strength and wrinkle recovery ability are worse.

Abstract: The low-pressure casting method has been used to the foundry process of bolster. According to the structural characteristics of the cast and the design process of low-pressure casting, the process programs had been accomplished. Through comparing the advantages and disadvantages of several group programs by computer simulation, after determining the initial process program, we optimized the casting process according observing the processes of cast filling and solidification by the computer simulation process of running castings. The risers and chills are very important. The contraction area of cast appears on the large flat, and the risers had been set on the large flat. This can not only play the role of feeding but also have the function of scavenging action.

Abstract: The paper presents a security enhancement method, which is based on smart security TF card (STF), to improve the security of short message for mobile terminal system (MTS). The method consists of three parts: the use of STF as a secure cryptography service module, increasing and then invoking encryption/decryption components for SMS processing in MTS, increasing secure SMS gateway (SSG) on the SMS server side. Following the method, the confidentiality of the message can be guaranteed either in the air or in mobile terminal itself and message traffic analysis attack can also be prevented to some extent.

Abstract: In the installation process of lifting tower cranes, background is complex, the impact of light on the characteristics of the target also changes over time very differently, which led to the installation of monitoring is not easy identified from the characteristics of the separate target in the changing off context. Based on this, this paper presents a model using bitmap which is based on the model of background subtraction to approach to background modeling adding morphological processing; the target feature can be more obvious. This method can identify the characterized target well from the complex background.

Abstract: A new electrochemical modified electrode for the detection of parathion was constructed based on molecularly imprinted polymer of self-assembled o-aminothiophenol onto gold electrode. Cyclic voltammetry was employed in the process of electropolymerization and electrochemical measurements. The template molecules and the nonbound o-aminothiophenol were removed from the modified electrode surface by washing with 0.5mol/L hydrochloric acid. The effects of the ratio of monomers to templates, pH and incubation time on the reduction peak current of parathion at the imprinted polymer film coated electrodes were demonstrated. Parathion imprinted and nonimprinted polymer films were exposed to a series of closely related compounds and the sensor exhibited good selectivity and sensitivity to parathion. A highly linear response to parathion in the concentration range of 5.0×10-7～1.0×10-4mol/L was observed, with a detection limit of 2.0×10-7mol/L estimated at a signal-to-noise ratio of 3.

Abstract: Cloud computing is an effective approach for organizing computing resource and improving computing capability. In this paper, we designed and contstucted a private cloud computing platform based on ubuntu enterprise cloud. The cloud computing platform supports various clients dynamicly connet to cloud server and get cloud computing service via interface platform provided. Various kinds of virtual machine instance of different settings running on physical servers provide users computing and storage capability on demand. A series of high level functions guarantee computing service provision of platform.

Abstract: In this paper, the Markov chain and gray prediction are analyzed and compared, and the real estate market price prediction model is established in the gray-Markov chain method, then the empirical analysis for example of Qingdao is conducted.

Abstract: Rotor shaft is an important part in the high speed traction motor. In the process of the motor running，some rotor shaft may show the symptoms of fatigue crack，fracture and other issues．Therefore，it is essential to analyze its fatigue condition for these potential problems in the product design stage．In this paper，finite element analysis software NX. Nastran is used to analyzing the rotor shaft of traction motor from structural strength，fatigue strength and fatigue life respectively．The fatigue damage area and dangerous zone of the rotor shaft as well as its fatigue life can be predicted according to the simulation results，and which could provide a critical review for the following study and structural design of the traction motor．

Abstract: The status that domestic technology forming the high-pressure gas bottles surface leading to the poor marking quality is analyzed. The rapid image processing method based on Binarization is presented to identify the defects position and profile from the marking region quickly, and it is designed with four steps: CCD capture, pixel enhancement, edge identification and feature extractions. By the statistical analysis of the project practice, the defects is defined as four typical types in shape, and then through the BP neural network training to identify the defects type effectively and driving the machine pre-set coping strategies to make appropriate responses automatically without manual interaction. The final test shows that the automatic high-efficiency marking defects identification is achieved