The use of functional material to assemble pre-programmed graphics at the nano scale is among the most studied nano-biological system field. Because of the natural characteristics of DNA molecules: nanoscale, parallel...
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In order to resolve the problem of the image degradation, an image enhancement method based on fractional calculus and Retinex is proposed, which can preserve or enhance texture information and remove the noise of ima...
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In order to resolve the problem of the image degradation, an image enhancement method based on fractional calculus and Retinex is proposed, which can preserve or enhance texture information and remove the noise of images. The fractional differential is used to preprocess the input image to enhance texture information, and using guided filter to estimate the illumination component, so it has less halo phenomena. The reflection component, obtained according to the Retinex theory, is denoised by fractional integral to remove the noises. The image is equalized by the contrast limited adaptive histogram equalization to improve the image contrast, and a final enhanced image is obtained. The experimental results show that the method can effectively achieve image enhancement, and the enhanced image has better visual effects.
Modern power systems are evolving into sociotechnical systems with massive complexity, whose real-time operation and dispatch go beyond human capability. Thus,the need for developing and applying new intelligent power...
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Modern power systems are evolving into sociotechnical systems with massive complexity, whose real-time operation and dispatch go beyond human capability. Thus,the need for developing and applying new intelligent power system dispatch tools are of great practical significance. In this paper, we introduce the overall business model of power system dispatch, the top level design approach of an intelligent dispatch system, and the parallel intelligent technology with its dispatch applications. We expect that a new dispatch paradigm,namely the parallel dispatch, can be established by incorporating various intelligent technologies, especially the parallel intelligent technology, to enable secure operation of complex power grids,extend system operators' capabilities, suggest optimal dispatch strategies, and to provide decision-making recommendations according to power system operational goals.
control techniques have prime importance for any system. The wind turbine system necessitates an effective and precise control system to meet energy requirements. The pitch angle control is of prime importance for reg...
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ISBN:
(数字)9781728149561
ISBN:
(纸本)9781728149578
control techniques have prime importance for any system. The wind turbine system necessitates an effective and precise control system to meet energy requirements. The pitch angle control is of prime importance for regulating the power output along with to restrain the rotor speed of wind turbine (WT). This paper proposes an improved PID controller of the pitch control to enhance the power output in addition to bound the WT speed. This technique also assists to dwindle the loading effect, produced by the aerodynamic forces, through limiting the torque. The proposed methodology is tested with the use of MATLAB/Simulink and it is equated with the PI control technique to assess its usefulness. The designed controller is verified on 2 MW doubly fed induction generator (DFIG) WT. Simulation results validate the effectiveness and precision of the presented control technique.
Installing smart meters to publish real-time electricity rates has been controversial while it might lead to privacy concerns. Dispatched rates include fine-grained data on aggregate electricity consumption in a zone ...
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ISBN:
(数字)9781728113982
ISBN:
(纸本)9781728113999
Installing smart meters to publish real-time electricity rates has been controversial while it might lead to privacy concerns. Dispatched rates include fine-grained data on aggregate electricity consumption in a zone and could potentially be used to infer a household's pattern of energy use or its occupancy. In this paper, we propose Blowfish privacy to protect the occupancy state of the houses connected to a smart grid. First, we introduce a Markov model of the relationship between electricity rate and electricity consumption. Next, we develop an algorithm that perturbs electricity rates before publishing them to ensure users' privacy. Last, the proposed algorithm is tested on data inspired by household occupancy models and its performance is compared to an alternative solution.
This paper studies the stability of the six-dimensional Fractional gene regulatory networks(GRNs) with three variables and the bifurcation of second-order system *** paper presents the basic interaction model figure o...
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This paper studies the stability of the six-dimensional Fractional gene regulatory networks(GRNs) with three variables and the bifurcation of second-order system *** paper presents the basic interaction model figure of three variables GRNs,which contains the relationship between the three ***, in order to improve the accuracy of the study, in analysis of ***, a numerical simulation example is provided to verify the effectiveness and the advantage of the proposed stability and bifurcation criterion.
The concentration detection of the mixed gas is significant to operate safely and efficiently as well as reduce the emission of pollutants. In this paper, a concentration detection system based on acoustic relaxation ...
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Distance distributions are a key building block in stochastic geometry modelling of wireless networks and in many other fields in mathematics and science. In this paper, we propose a novel framework for analytically c...
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Indirect methods for visual SLAM are gaining popularity due to their robustness to environmental variations. ORB-SLAM2 [1] is a benchmark method in this domain, however, it consumes significant time for computing desc...
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