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The rise of the network economy and E-commerce has pushed the rapid development of logistics market. The Multi-tier Shuttle Warehousing System (MSWS) as a new autonomous unit load storage/retrieval system, which flexibility and work efficiency is much-improved compared with the conventional AS/RS, has attracted more and more attention of logistics enterprises both at home and abroad. MSWS is composed...
Urban saturation load is the key index to determine the final scale of power grid development in urban power network planning. The research on urban power load forecasting has important guiding significance and practical value for the construction and planning of urban power network in the future. In this paper, a new method based on the saturated load density was proposed for the prediction of urban...
High uncertainties in day-ahead unit commitment (UC) introduced by the deviation of wind power forecast error require high amount of spinning reserve, which counteracts the cost and fossil energy saving contributed by wind power integration. To mitigate the above problem, a two-level unit commitment coordinated strategy (TLUCCS) is presented based on the characteristic of wind power forecast accuracy...
In this paper, the hub motor driven pure electric vehicle as a prototype, side-slip angle and angular velocity as a controlled variable to design a path tracking controller based on adaptive terminal sliding mode. Through the simulation it can be the design of the adaptive control method based on terminal sliding mode can ensure the vehicle driver's action in 1s after completion of rapid response...
In this paper, the vehicle two-degree of freedom suspension model is taken as the system dynamics model to study the semi-active air suspension system. The sky-hook suspension system is selected as the reference model. Based on the error equation of the body motion, a sliding mode controller is designed by using isokinetic approach law. The traditional sliding mode control uses the switching function...
Inter prediction plays an important role in most video encoding systems since it could significantly improve coding performance. The more accurate the prediction of the current block, the smaller the residual, and the higher coding efficiency could be achieved accordingly. In this paper, a localized weighted prediction method is proposed to improve inter prediction accuracy. The linear regression...
Numerical studies of low pressure discharge in the cavity component, such as impedance transformer, are discussed in this paper. The basic physics behind such a phenomenon also have been described. In the S-band impedance transformer low pressure discharge effect will take place in the pressure range of 3–8mBar. In addition, the influence of the temperature for the breakdown threshold is slight.
With the emergence of energy crisis and environmental pollution, the large scale photovoltaic power systems have been widely applied. However, the output power of photovoltaic power system has the property of uncertainties. In order to lighten the adverse influence for power grid, this paper attempts a method based on Grey combination model to forecast the short-term power output of a PV power system...
Institutional investors impacting the capital structure of listed companies is an indisputable fact. However, previous studies using the linear method come to different conclusions. In this paper, using the 2006-2008 A-share listed data of China we find that: in current and lagged one year, the relationship between institutional ownership and capital structure of listed companies are non-linear and...
Sand is generally considered to be cohesionless material, but there is small cohesion for sand with certain moisture content. It is reasonable to consider the cohesion when analyzing the stability of side slope of high sand embankment. In this paper, direct shear tests of the Shuhe River sand (in Shandong province, China) were done at different moisture contents and dry densities, and a multiple regression...
Recent research efforts reveal that color may provide useful information for face recognition. For different visual tasks, the choice of a color space is generally different. How can a color space be sought for the specific face recognition problem? To address this problem, this paper represents a color image as a third-order tensor and presents the tensor discriminant color space (TDCS) model. The...
Obtaining MRI parametric maps for addressing pathophysiology features rather than focusing on anatomical structures of tissues is becoming popular in quantitative study of human glioma. In Perfusion MRI, injected contrast agent may leak into the surrounding tissues of a glioma due to the breakdown of blood-brain barrier (BBB) in malignant (i.e., high grade) gliomas. As the consequence, the intensity...
This paper presents a new method to generate test cased based on the Object Oriented Net (OON) model, notated with Z schemas. We can be benefited from this method in that: (1) Picturing the whole system while generating the test by the algorithm at the same time; (2) Instructing coding by the extended model.
Radial basis function (RBF) neural network is used to predict the blast furnace hot metal based on its characteristics such as fast convergence and global optimization. As hot metal silicon content had close relationship with furnace temperature, the change of temperature in furnace was reflected indirectly by hot metal silicon content. Newrbe function in Matlab was applied for function approximation...
Chan-Vese model, based on Mumford-Shan segmentation techniques and the level set method, is one of classical active contour models. It is improved by introducing gradient of images to it in this paper, because gradient of images can reflect the characteristic of all contours in images. This new model can detect objects whose boundaries are interior contours. Bones always appear to be the brightest...
A new demosaicking algorithm based on direction categorization for wireless IP camera is proposed. By calculating the differences of neighboring pixels and the difference of average value of horizontal and vertical green pixels, the centered pixel is classified as horizontals verticals smooth and non-direction. After the directionality of the centered pixel is determined, the gradients of adjacent...
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