Li X.,Suqian College |
Wang S.,Jiangsu University
Xiyou Jinshu/Chinese Journal of Rare Metals | Year: 2012
TiC-reinforced Ni 3Al composites were fabricated through thermal explosion reaction. The thermal explosion reaction process of Ti-C-3Ni-Al system and the composites were analyzed by differential scanning calorimetric(DSC), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results showed that the reaction of titanium and carbon was ignited by the reaction of nickel and aluminum. Pure TiC/Ni 3Al products were synthesized by the thermal explosion. The reaction temperature of Ti-C-3Ni-Al system was independent of TiC contents. The system composition and thermal explosion temperature were found to have obvious influences on the morphology of the composites. With the increase of TiC contents, TiC particulates became coarser and the micro pores of the products decreased. The relative density of the products increased at first and then decreased with the rise of the thermal explosion temperature and TiC contents. The microhardness of the composite was revealed to be higher with higher TiC content.
Yang Q.-M.,Suqian College
19th International Conference on Industrial Engineering and Engineering Management: Management System Innovation | Year: 2013
As dynamic and main force of domestic market, small and medium-sized enterprises keep stimulating the development of economy. As a result, the quality and level of growth of SMEs determine the overall development of national economy. The innovation capability guarantees core competence of enterprise and is an important basis of upgrading national competitiveness. Based on the theory of collaborative innovation, this article explores establishing co-innovation of small and medium-sized enterprises, so as to bring up its innovation capability, and will contribute to a rapid and sound development of national economy. © 2013 Springer-Verlag Berlin Heidelberg.
Fan J.,Suqian College |
Wang L.G.,Jiangsu University
Applied Mechanics and Materials | Year: 2013
The conventional precision analysis method of modification and design is qualitative, laborious and time consuming. The precision of reverse parametric modification have direct influences on the quality of the reversed products. In this paper, a quantitative analysis method based on a reverse parametric approach and precision control concept is proposed. Combining with the ATOS scanner system, analyzing every aspect of the precision control and the error distribution, including data acquisition process, reverse reconstruction process and parametric process. In the process of the product reverse parametric modification, general error distribution is mainly composed of data acquisition error, reverse reconstruction error and parametric error. The method of precision control during the reverse parametric modification process is analyzed, according to this method, the total error of parametric modification for die face is 0.089mm, is lower than the accuracy requirement of 0.10mm in the reverse parametric modification process, the reverse modification of the die face of the blade based on precision control is realized. Validity and effectiveness of the method has been confirmed by case studies. © (2013) Trans Tech Publications, Switzerland.
Ma X.,Jiangsu University |
Li Q.,Suqian College |
Shen Y.,Jiangsu University
Acta Geographica Sinica | Year: 2012
Based on the SPOT satellite images of Jiangsu Province in 2007/2008, using models such as exploratory spatial data analysis and spatial metrics, the paper conducts a quantitative analysis of the space differentiation of rural settlements in Jiangsu Province, and further identifies the regional types. The results are shown as follows. In spatial distribution, the rural settlements in Jiangsu are characterized by obvious concentration with evident spatial variability, which is shown in the ladder-like sparse distribution towards the north and south in areas along the Yangtze River with high correlation in the overall distribution and geomorphic types. In the scale, the rural settlements in Jiangsu are generally in small scale with small difference in the scale of small villages and large gap in the scale of large villages which account for a small proportion. The rural settlements in Jiangsu are characterized by low concentration in size distribution, and is obviously presented in the "dumbbell" structure, namely, the rural settlements in northern and southern Jiangsu are in a large scale, and those in the central part are in a relatively small scale. In the spatial change of form and pattern, through the measurement of the pattern indices of the five transects in the northern, central and southern Jiangsu, the coastal area and areas along the Grand Canal, it was found that the form of the rural settlements in central Jiangsu is more complex than that in the northern and southern parts of the province, and the form of coastal area is more complex than that in areas along the canal. The rural settlements in southern Jiangsu and areas along the canal are characterized by good connectivity. The rural settlements in the five transects are significantly differentiated in distribution. Finally, through establishing the morphological measurement index system of the rural settlements, by adopting the method of hierarchical cluster, the rural settlements in Jiangsu are divided into eight types: Xulian hillock (low-density large-mass type), Suhuai plain (medium-density broad-band type), coastal reclamation area (high-density stripe type), polder area in central Suzhou (medium-density arc-belt type), plain south of the Yangtze River (medium-density small-mass type), lake mound land (low-density point-scattered type), Ningyi hilly region (cluster-like dispersal type), and Lixiahe area (low-density cluster-like type).
Wang Y.,Suqian College
International Journal of Digital Content Technology and its Applications | Year: 2012
Description logic (DL) is an object-based method for formal information representation, which can describe individual information of the issue domain through defining the concepts and structures in the domain and using the effective reasoning function. This paper proposes the DL-based conceptions of multimedia information and the semantic relationship, and it builds a bridge between theoretical model and practical application. The research includes: relative definition of multimedia information semantic modeling based on description logic, realization of DL-based semantic stratification--a series of algorithms of constructing and adjusting conceptual hierarchical net.