Applied Mechanics and Materials
Vols. 66-68
Vols. 66-68
Applied Mechanics and Materials
Vol. 65
Vol. 65
Applied Mechanics and Materials
Vols. 63-64
Vols. 63-64
Applied Mechanics and Materials
Vol. 62
Vol. 62
Applied Mechanics and Materials
Vol. 61
Vol. 61
Applied Mechanics and Materials
Vols. 58-60
Vols. 58-60
Applied Mechanics and Materials
Vols. 55-57
Vols. 55-57
Applied Mechanics and Materials
Vols. 52-54
Vols. 52-54
Applied Mechanics and Materials
Vols. 50-51
Vols. 50-51
Applied Mechanics and Materials
Vols. 48-49
Vols. 48-49
Applied Mechanics and Materials
Vols. 44-47
Vols. 44-47
Applied Mechanics and Materials
Vol. 43
Vol. 43
Applied Mechanics and Materials
Vol. 42
Vol. 42
Applied Mechanics and Materials Vols. 55-57
Paper Title Page
Abstract: This paper presents a practical assessment of brand competitiveness in property insurance industry through Fuzzy Comprehensive Assessment. The multicriteria evaluation model and weighting matrix have been determined by the Analytic Hierarchy Process (AHP). The synthetically appraisal score of property insurance companies can be estimated by Fuzzy Comprehensive Assessment, which contains a two-stage decision. At the end of this paper, three listed property insurance companies have been evaluated following the above methods.
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Abstract: The quality of the recommended results will depend on the determination policy of the case similarity, case retrieval policy and personalized recommended policy based on case reasoning. The case similarity determination strategy is one of the important link to design the personalized recommendation system. This paper studies the case similarity determination method of the personalized recommendation system based-CBR . And the similar determination method based on similar case characteristic vector are discussed and the relevant algorithm is given.
1494
Abstract: The standard genetic algorithm is improved by introducing the engineering treatment method of design vector in order to solve the optimization problem with mixed-discrete variables. A program of improved genetic algorithm has been designed. It can be used to solve the optimal design problems with continuous variables, discrete variables or mixed-discrete variables. For a dimension chain, the fuzzy-robust design of dimension tolerance is discussed and a model of fuzzy-robust design optimization is established. The solution of established model is achieved by using the improved genetic algorithm and the robustness of the dimension tolerance has been improved. The example shows that the proposed method is effective in engineering design.
1502
Abstract: A series of Y/TiO2 nanoparticles (NPs) were synthesized via sol-gel method. The crystal structures, morphologies and chemical properties were characterized using X-ray diffraction (XRD), high resolution transmission electron microscopy (HR-TEM) and X-ray photoelectron spectroscopy (XPS). We investigated the effects of different doping amounts of Y on the reaction of CO2 photoreduction. The results shown that 0.1 wt.%Y/TiO2 (0.1YT) performed the highest photocatalytic activity, which yielded 384.62 µmol/g∙cat. formaldehyde after 6 h of UV illumination.
1506
Abstract: According to the basic theory and process of conventional injection molding, using the CAE software, numerical simulation research of the injection molding characteristic for micro thin-wall plastic parts are put forward. The effects of process parameters (melt temperature, mold temperature, injection pressure, injection rate) on molding characteristic of micro thin-wall plastic parts are discussed by single factor method, compare the significance of each factors.The simulation results showed that volume could be improved with the increase of melt temperature ,molding temperature, injection pressure and injection rate.
1511
Abstract: Grand Canonical Monte Carlo(GCMC) method was employed to simulate the adsorption properties of molecular hydrogen on NaA zeolite at 40-293 K and pressures up to 10000 kPa in this paper. The results indicated that the adsorption capacity of hydrogen increased with decreasing temperatures and increasing pressures. The highest hydrogen uptake value is 1.54 wt.% at 40 K and 10000kPa. Adsorption temperature has an important effect on adsorption energies and adsorption sites of hydrogen molecules in NaA zeolite. For lower temperature (below 180 K), the oxygen atoms of zeolite framework and extra-framework cations are stable adsorption sites of hydrogen molecules. For the higher temperatures (above 180 K), the oxygen atoms are only stable adsorption sites of hydrogen molecules.
1518
Abstract: A feature extraction method based on the geometric properties of printed numerals was descrided. After reading a single binary numerical image, determine the boundary of character on this numerical image. Then according to the structure, the features that can uniquely identify the numbers could be extracted from the printed numerals, and verify the obtained feature values of numbers to ensure that each extracted feature value of number was different from that of others. If the results showed that all the extracted feature values of numbers were not the same, it proved that the feature extraction method was feasible.
1523
Abstract: According to the consistency between multi-scale decompositions and self-similarity in both wavelet transform and fractal theory, a new method has been developed to extract the feature parameter of wear particle group on the ferrographic image for diesel engine lubricants. The algorithm of minutiae extraction have been carried out by wavelet transform approach and the fractal dimension, and then the feature parameter can be obtained for the wear particle group on the ferrographic image. The fractal dimension D reflects the ferrographic image character in the scale and the amount of wear particle group, which can be used as a comprehensive feature parameter. The metal-ceramic nano-lubricant, which has been applied in the wear test of cylinder and piston-ring material from MAN B&WS50MC marine diesel engine, represent that the wear is speedup suitably, and then the fractal dimension D has consistency with the results of ferrographic analysis.
1530
Qualitative Assessment of the RCS Reduction Benefits on Detection Probability of an Armed Helicopter
Abstract: The ability of a threat system to quickly detect, locate, identify, and accurately track an armored helicopter has a significant influence upon the safety of the target. RCS (radar cross section) reduction is a major consideration in the design of a stealthy armed helicopter. This paper is to provide a systematic method for qualitatively assessing the RCS reduction benefits on the helicopter detection probability. Considering the helicopter radar scatter signal of mirror reflection and edge diffraction at high radar frequency, the RCS computation methods of PO (physical optics) and ILDC (increment length diffraction coefficient) are firstly introduced. Then probability theory is employed to predict the radar detection probability. Moreover, two hypothesis armed helicopters, in which one is conventionally designed and another is stealthily designed with radar absorbent material, are used as an example to illustrate the feasibility of the proposed method. Analysis shows that the benefits of radar signature reduction (i.e., radar absorbent material) include a decrease in the radar detection probability and an increase in the effectiveness of any radar countermeasures.
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