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Through the analysis for the current urban road network and the urban traffic control schemes, establish the model of the average of vehicle up-time in road network. Then, by use for reference thinking of natural selection of genetic algorithm improved the minimum value problem of particle swarm optimization algorithm. Hereafter, the model was optimized by the improved particle swarm optimization,...
The current contact resistance models only consider the static state and more or less have some idealized assumptions. Owing to the surface irregularity, the dynamic performance of electrical contact is difficult to capture. In this paper, based on the rough surface simulation, the finite element (FE) analysis method of electrical contact is proposed. The contact resistance and the rough surface characterization...
Chinese hacker communities are of interest to cybersecurity researchers and investigators. When examining Chinese hacker communities, researchers and investigators face many challenges, including understanding the Chinese language, detecting variations in topic evolution, and identifying key hackers with their specialty areas. Therefore, we are motivated to develop a framework for analyzing key hackers...
In this project, fluid flow and fluid-structure interaction are studied for the human lower gastrointestinal (GI) region. The study consists of two steps. First, we apply meshing methods to discretize both the human lower GI model and the catheter model at sufficient resolution suitable for importing into a Finite Element Analysis (FEA) tool. For model discretization, 3D models of the colon reconstructed...
Particle size is the key technical index of grinding process, but it is difficult to be measured online directly, and the lab analysis has large-time delay. Combined with the advantage of soft-sensor modeling based on support vector regression (SVR), a soft-sensor approach for particle size of grinding process with SVR is proposed. Firstly, the empirical formulae are used to roughly determine the...
Forwarding messages in opportunistic networks incurs costs for nodes in terms of storage and energy. Some nodes becomes selfish or even malicious. The selfish and malicious behaviors depress the connectivity of opportunistic networks. To tackle this issue, in this paper, we propose CARISON: a community and reputation based incentive scheme for opportunistic networks. CARISON allows every node belongs...
The analysis of electroencephalogram (EEG) signal is a low-cost and effective technique to examine electrical activity of the brain and diagnose brain diseases in the Brain Computer Interface (BCI) applications. Classification of EEG signals is an important task in BCI applications. This paper investigates two common methods of feature extraction on EEG signals, autoregressive (AR) model and approximate...
The tax revenue forecast is the main basis for the national and local tax operation plan and the deployment of the next year. According to the related indicators of national economy of local tax revenue in Jilin Province, using gray correlation analysis for correlation analysis of main economic indicators, to identify the main factors and secondary factors of impact of tax. simultaneously, the tax...
Teaching ability evaluation of professional teachers is an important means of teaching management to the related teaching department, and it plays a very important role in enhancing the teaching ability of teachers and the quality of teaching. In this paper, by analyzing the disadvantages of traditional evaluation methods, an evaluation model of university teachers' teaching ability is put forward...
Multiple linear regression (MLR), the principal components analysis (PCA) and partial least squares (PLS) method are the traditional chemo metric methods in the near infrared spectral analysis. However", "these linear methods could not obtain the very good predicted accuracy. in this paper, the research on application of Fuzzy Pattern Recognition to qualitative analysis of Near infrared...
This paper aims to study two major economies in the world namely China and United States of America. Through the demonstration of the rationality and justice of protection of IPRs, the paper has the two countries respectively an empirical analysis on the long-term relationship between protection levels of IPRs and the trade amount of good and service by the use of TC index, then it sets up a model...
Effects of technological innovation on performance are significantly important to firm's competitive advantages. This paper aims to find the key points when studying effects of technological innovation on performance, and to build a conceptual model. The results show that R&D and marketing capabilities are critical. In the conceptual model, not only effects of R&D and marketing capabilities,...
Based on the theory of non-convex interval goal programming and the discrete resources ideology, this paper constructs three basic storage resources allocation models, to illustrate the relationship between the aggregate requirement and the gross capability of storage in a group enterprise. Numerical results for the oil country tubular goods (OCTG) of 17 subcompanies of a group oil enterprise, verified...
This paper proposes a method to calibrate and position surgical instruments using stereo camera, discusses the calibration error and its propagation when the instrument is positioned. A planar marker composed by X corners is attached to the instrument, and a reference frame is established on the marker. The structural parameter of instrument is calibrated on clinical site by rotating the instrument...
Under foggy weather conditions, the contrast of outdoor scene images is often drastically degraded. In this paper, we address the question of restoring the contrast of outdoor scene images from just one degraded image. A simple modified model was derived firstly based on atmospheric scattering models, which describes the mechanism that the apparent contrast of scenes degrades under foggy conditions,...
The self-similarity of complex networks has broad practical backgrounds. It is similar to the phenomena of social relationships: ldquothings of one kind come together, birds of a feather flock togetherrdquo. The reason and the course of self-similarity networks formed and these three statistics characters of complex networks are discussed and analyzed in detail in this paper; besides, the concept...
In supply chain operations, there may be many disruptions, which cause much costs and reduce supply chain performance. So, it is necessary for corporations to understand the anti-disruption capability of the supply chain which they participate in. This paper designs a new evaluation system which is more appropriate to test the supply chain anti-disruption capability. And according to the proposed...
The BA model and BA extend model described the number of nodes linked, but the researchers believe the nodes have the highest number of links if the timeframe is enough long. However, the real system not only depend on timeframe, hence, we proposed a new network evolving model which has attractive factor, the number of links of nodes have relate with attractive factor. If new nodes have enough attractive...
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