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This paper proposes a requirement container coupling with goal and feature as a requirement business model in business level, it can be used to support reusable domain artifacts, it shows clearly the traceability of user requirement to system solution. In the later development with reuse phase, it can be customized according to different reuse contexts. Furthermore, the above mentioned requirement...
With view to satisfying the requirement of real-time under the circumstance of resource-constraints, specific and practical architecture for high-dimensional data streams are proposed, meanwhile, based on CUDA (Compute Unified Device Architecture), canonical correlation analysis between two multiple dimensions data streams using data cube pattern and dimensionality-reduction technique is carried out...
DV-Hop algorithm is one of the important range-free localization algorithms. Three improved methods are put forward in this paper to settle the larger location error of the classic DV-Hop localization algorithm. First, the average hop-size of each anchor node is calculated by adopting least squares method. Second, the distance between unknown nodes and anchor nodes is refined by means of the average...
Dividing the rotor-screw system of machine tool into a multi-degree-of-freedom torsion system, this paper educes the transfer function model of the mechanism including torsion vibration modes of the first two orders. Consequently, a mechatronic model of servo control system of feed drive including lead-screw torsion vibration is built. Based on this model, the simulation comparisons of dynamic characteristics...
This paper analyzed the effects of option value of on the investment timing of a real estate firm in the housing market. Based on the model's assumptions and specifications, this paper deduced the option value of land and land development threshold. Further, this paper conducted a comparatively statistic analysis and arrived at some important conclusions. First, there is an inverse relationship between...
With the original data as basis, evaluation of cultivated land quality was carried out in Yidu County with the aid of GIS and the fuzzy matter-element proximity cluster model. The procedure of the evaluation goes:(1)Use the principal component analysis method to determine factors which affecting cultivated land quality;(2) extract correlatographs through vectorization with the aid of ArcGIS, put them...
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