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Startup is a high risk procedure in chemical industry, during which expert system is an effective way to intelligently monitor and control abnormal state. This paper proposed an intelligent startup instruction method, which uses expert system to guide operation steps and trigger first principles model to optimize startup parameters. Real-time data are converted into facts and pushed into database...
Comprehensive learning particle swarm optimization (CLPSO) algorithm has a good performance in overcoming premature convergence and avoiding getting stuck in local minima, which are shortcomings in particle swarm optimization. It can solve complex, multi-modal of single-objective problems, but it has not such performance in handling multi-objective optimization problems because of the difficulty of...
Current methods that use hyperspectral remote sensing imagery in the detection and extraction of marine oil spills are quite popular. Because the mixed pixels exist broadly in the hyperspectral images, the automatic and accurate end member extraction technology plays most essential role in the hyperspectral unmixing. This paper proposed a data field-spectral preprocessing module prior to end member...
This work aims to build pixel-to-pixel correspondences between images from the same visual class but with different geometries and visual similarities. This task is particularly challenging because (i) their visual content is similar only on the high-level structure, and (ii) background clutters keep bringing in noises. To address these problems, this paper proposes an object-aware method to estimate...
With the implementation of China's innovative national development strategy, R&D cooperation has become an important way to enhance technological innovation capability of enterprises. Inter-firm R&D cooperation promote enterprises to obtain complementary knowledge and ability, and has an important impact on technological innovation and development of enterprises. However, as a result of the...
We study the problem of joint spectrum and storage resource backup (JSSRB) to improve the survivability of elastic optical datacenter networks (EODNs) for cloud services. An ILP model and heuristic algorithms are developed. Simulation results show that JSSRB can effectively improve the survivability and spectrum efficiency of EODNs.
We use data from the second generation of SAR systems e.g. the Italian COSMO-SkyMed constellation and the German TanDEM-X formation to monitor the characteristics of grounding line migration using short repeat-time interferometry and accurate InSAR DEM on Pine Island glacier (PIG), West Antarctica. Prior attempts of grounding lines mapping have been limited because few space-borne SAR missions offer...
Optical steganography can realize the broadening of signal in the time domain through the group velocity dispersive, and transform the signal which needs to be protected into system-like noise hidden in the public service for transmission. Because of the random distribution of public and stealth services in the optical network, the establishment of end-to-end stealth channels often needs to connect...
We propose an inter-core crosstalk-aware routing, spectrum and core allocation scheme with spectrum bands and spatial Sp-Chs in multi-dimensional optical networks to get higher SE and lower XT. 15% reduction in XT is achieved.
With the rapid development of Internet and information technology, social media has been growing fast. A large amount of social awareness data which represent the public's sensing and response to emerging technologies contained in social media, such as Twitter. By analyzing and mining the social awareness data to early detect the future trend of emerging technologies and identify the commercial potential...
The present study aims to identify the intellectual structure of computed-supported collaborate learning (CSCL) so as to provide more insights into the research trend, the most influential scholars, categories, and regions. This paper analyzed the articles and conference publications derived from Web of Science (WOS) in the field of CSCL from 2006 to 2016. A total of 792 articles were selected and...
According to the characteristic of large space manipulator, an on-board real-time singularity detection design is proposed. On the basis of forward and inverse kinematics calculation, the forward and inverse power method is applied to obtain the singularity by iterative computation. Firstly, the 7-DOF manipulator kinematics model is described and analyzed, and the main computational process is presented;...
Internet of Things has been widely applied in everyday life, ranging from transportation, healthcare, to smart homes. As most IoT devices carry constrained resources and limited storage capacity, sensing data need to be transmitted to and stored at resource-rich platforms, such as a cloud. IoT applications retrieve sensing data from the cloud for analysis and decision-making purposes. Ensuring the...
We develop an innovative PC2PC (personal computer to pervasive computing) system to enable the secure, robust and pervasive mobile workstyle. PC2PC server compresses the desktop screens of any virtualized system, and delivers the stream through any popular networks to PC2PC client remotely for stream decoding, rendering and end-user interaction (such as keyboard/mouse commands). We have implemented...
Natural ester as an environmentally friendly dielectric liquid is becoming commonly used in power transformer. However, it is susceptible to oxidation. Under severe oxidation, the oil sample could gel whose impact on insulation performance is not known. In this research, we focus on the impact of the gelling process of natural ester on its breakdown characteristics. In order to survey this, a breakdown...
Due to its high matching precision, DTW is an important similarity measure for time series. However, the high computational complexity restricts its application on mass data sets. To solve the problem, a combined filtering search is proposed, which combines lower-bounding technique and early-abandon strategy, to reduce the redundant computation. The experimental results indicate that the proposed...
It is discovered that explicit interference threshold of susceptible equipment under EMI is hardly ascertained. So in this paper, the concept of probability threshold is put forward and electromagnetic susceptibility tests on digital cameras against the ESD (Electro-Static Discharge) EMP, the square pulse and the C band HPM (High power microwave) is carried out. The EMI effects observed on the cameras...
An optimization model is proposed in this paper to solve the transportation mode selection and the demand allocation problem with environmental and economic performance considered. The case study based on the regional logistics of Pearl River Delta (PRD) in Guangdong province of China illustrates that the optimal solution changes significantly when carbon emission is introduced into the optimization...
Smart parking solutions for big cities are critically important for reducing traffic congestion and vehicle energy consumption in big cities. Visual-based detection methods have been proposed since their maintenance costs are typically lower. However, visual based detection methods in existing systems are not robust due to varying light intensities, occlusions, and their deployment costs can still...
We propose a distributed sub-light-tree construction (DSLTC) scheme which uses multiple distributed sub-light-trees with different source datacenters to jointly serve one multicast request. DSLTC scheme achieves higher spectrum efficiency than the conventional sub-tree scheme.
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