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Continuous correction of train absolute position in local area is accomplished by connecting distance detect sensor group to on-board Automatic Train Protection (ATP) system and installing the height difference positioning matrix on the wayside. The on-board ATP system can detect every unit height of the height difference positioning matrix row element, and transfer the heights into a unique position...
This paper investigates a novel task of generating texture images from perceptual descriptions. Previous work on texture generation focused on either synthesis from examples or generation from procedural models. Generating textures from perceptual attributes has not been extensively studied yet. Meanwhile, perceptual attributes, such as directionality, regularity and roughness are important factors...
Procedural textures have been widely used as they can be easily generated from various mathematical models. However, the model parameters are not perceptually meaningful or uniform for non-expert users. In this paper, we proposed a system that can generate procedural textures interactively along certain perceptual dimensions. We built a procedural texture dataset and measured twelve perceptual properties...
Most of NC simulation software's for the current two-dimensional interface driven 3D scene CNC machine action, shortcomings of not consistent with the real working environment, as well as in the meter simulation, the system operator is facing a large panel to be displayed multiple meters, each logical relationship among meters is complex and other issues, the research is to apply Vega Prime in the...
Intelligent decision support system involves lots of calculations and analysis, and this will affect the operational efficiency of the system. This paper raised that integrate matlab into the IDSS, and let it compute data alone, which will improve the efficiency of the system and so that system designed and implemented will be easier and more convenient to be used. Finally an example is given in combination...
In model based selective catalytic reduction (SCR) control, because of the nonlinearities and immeasurable properties of the SCR physical background, model parameterization is always a problem to be solved. In this paper, a new method based on the nonlinear least square method is developed to estimate the parameters in a SCR model. The SCR system state functions are specially designed in terms of...
Liquefied Natural Gas (LNG) is being developed as a transportation fuel for transit buses, to lessen the dependency on oil and to reduce greenhouse gas emissions. But LNG is hazardous because of its temperature, the possibility of asphyxiation and of course the fire risk. This paper describes the use of Fluent, a widely-used commercial CFD code, to simulate the dynamics of spills from LNG bus fuel...
Study and analysis the fuel leakage security of current LNG alternative fuel bus. Do the simulation on surrounding concentration and temperature of LNG bus fuel tank leakage by Computational Fluid Dynamics (CFD). By analyzing the influence of three different bus velocities, 0km/h, 30km/h and 80km/h, we have the conclusion from the simulation that when the bus gets faster, the influence of surrounding...
This paper presents a formal imperative calculus to formalize the semantics of class-based object-oriented programming languages. The tractability of this approach is demonstrated by our formalization of a core subset of the Java programming language called Cool: Core Object-Oriented Language. Cool is relatively small but retains many of modern class-based object-oriented languages' key features,...
In this paper, the engine optimal matching is done to improve the efficiency of supercharging lean burn LPG engines by optimizing the compression ratio and the distribution phase of camshaft. The gas consumption and emissions of LPG engine are reduced. A whole engine model is set up on one-dimensional simulation software. The optimal compression ratio is determined by comparing the simulation computed...
The simulative modules of speed regulating system of BLDCM were built based on the mathematical model. The transfer function of the rotating speed was obtained. The fuzzy PID parameters of self-adaptive controller were introduced. The function of PID controller was improved according to both the error and the variety rate. The simulative results show that self-adaptive Fuzzy-PID Control has faster...
How to improve the efficiency and performance of job scheduling in grid computing is one of the most important and challenging techniques. This paper tries to give out a novel grid job scheduling model based on agent technology. To make full use of intelligence and adaptability of the agents, dynamic fuzzy knowledge-base and corresponding fuzzy reinforcement learning algorithm are proposed for the...
Semi-supervised learning has become a topic of significant interests recently. In this paper, we are concerned with semi-supervised classification and noise detection. Based on label propagation algorithm, we present an improved label propagation algorithm, which can classify data and detect noise simultaneously. Compared with original label propagation algorithm, by detecting noise and constraining...
The evaluation for Web service is essential to select Web services from many candidates, but current evaluation models evaluate Web service only by common service attributes, which can not meet the requirements of end users. We propose an evaluation model for Web service, which customizes reasonable attributes in different domains as evaluation factors, and computes the weights of evaluation factors...
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