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In this paper, A test bench system used in the test of UAV is put forward. The system is consisted of four parts which includes bearing part of UAV, ground support position, transmission mechanism and measuring weight parts. Bearing part of UAV is used for placing the object to be measured which is connected to one end of the drive mechanism through the connecting shaft, The other end of the drive...
Live Virtual Machine (VM) migration across data centers is an important support technology which will bring benefits to both cloud providers and users. At present, VM storage migration becomes the bottleneck of this technology as it explores only the static data feature of image files without much consideration on data semantics. In this paper, we propose a new space-efficient VM image structure–three-layer...
Based on land use and urban plan maps, we extraced urban land information of Chongqing urban area in periods of 1995,2000.2008. With the help of GIS softwares and statistical analysis model, such indexes as expansion speed, expansion intensity, expansion direction, expansion morphological, and landscape features were used. This paper analyzed the spatio-temporal characteristics of urban land expansion...
On Dec 8th, 2003, the top price levels showed in the limit order book were enlarged from three to live in Chinese stock market, and the transparency was largely increased. The paper studies on the contribution of every quote price to price discovery, and compares with contribution of before and after transparency was increased. The results show that there exists significant difference of information...
Aiming at the defects & deficiencies existed commonly in the database of dam safety monitoring system used currently such as large data redundancy, bad data consistent, having many difficulties in managing various monitoring data & supporting effectively dam safety monitoring system's successfully running and unsuitable for update & transform, various information, included in the database...
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