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In order to improve fault forecasting model accuracy of back propagation neural network (BPNN), an improved prediction method of optimized BPNN based on Multilevel Genetic Algorithm (MGA) was proposed. We design new chromosome with multilevel structure, improve the encoding mode, fitness function and genetic operator. Which can optimizes the initial values of weights, thresholds and the structure...
Power cables are primarily deployed within underground utility tunnels in the Chinese Free Trade Zone of Hengqin New Area. Its geographic complexity has given rise to laborious construction, intricate deployment and perplexing monitoring. In this paper, we briefly introduce the specific challenges of power cable monitoring in a cable tunnel in the Hengqin New Area and elaborate on the problems that...
High dynamic range (HDR) imaging has attracted a lot of attention and enthusiasm in the last decades. With the quick advances of sensor technologies, even consumer level digital cameras are capable of capturing HDR images. However, a vast majority of nowadays displays still only have 8-bit color depth, and this leads to the widely studied topic of displaying HDR images on low dynamic range (LDR) devices...
Network communication protocol reverse-engineering is important for malicious software analysis. Security analysts need to rewrite messages sent and received by malicious software according to the protocol to control the malware's malicious behaviors. To enable such rewriting, we need detailed information about the sent message by the malware program in target host in the network dialog. However,...
Cloud computing is usually used to describe the large-scale distributed infrastructure, platform and software services provided by third party, which is a hot topic in IT area in recent year. However, it is disputable in industrial and academic area that what is cloud computing and whether it is a novel technology. This paper attempts to draw a clear picture by the introduction of several public commercial...
This paper study the IT service management framework and associated processes' definition, operation and the management methods of DC Company based on Information Technology Infrastructure Library (ITIL). Key performance indicators (KPI) and the service level agreement are applied to DC Company, both KPI evaluation framework and its weights are determined. Finally, IT management process evaluation...
Zijin Mountain National Forest Park in Nanjing City was selected as the study area and pine wilt disease was chosen as the monitoring object. High resolution remote sensing images of QuickBird in 2004 and 2007 were collected as the primary information source, while level two forest inventory data in 2007 were used as the auxiliary information. After image procession of change detection between 2004...
A wireless FAEM (facility agriculture environmental monitoring) system is presented by using ZigBee and GPRS technology, and the hardware realization and software flow are given too. By means of ZigBee wireless sensor module, the method can get together much information on soil humidity, Carbon dioxide, temperature, humidity and so on. Then such information is delivered to the remote control center...
Based on the analysis of the water quality monitoring data of Xingkai Lake in 2008, the eutrophic level of the water body was evaluated through a comprehensive trophic state index method. The results showed that the comprehensive trophic state index (CTSI) was 47.7 for Da Xingkai and 50.1 for Xiao Xingkai, which indicated that Da Xingkai is in a mesotrophic state and Xiao Xingkai in a light eutrophic...
In this paper, based on remote sensing data of 1999a and 2007a of the Xiangxi River watershed(XRW) and field investigation, changes of soil erosion and spatial distribution in the XRW has been studied through the GIS spatial overlay analysis of vegetation coverage, terrain slope and land use . The result indicated that the soil erosion area of the XRW reduced from 1999a to 2007a, the areas above moderate...
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