Papers by Keyword: Integrated Model

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Authors: Jie Mi
Abstract: Based on systems engineering theory, complex systems development process is discussed. The integrated model is built, in which the integration methods are introduced. The product development process is not only a continuously evolutional process, but also an improvement process of product model. A conceptual framework for integrated development is proposed. Furthermore, building a full context model to cover life cycle is to leverage the deployment of system engineering process. The result in this paper has a wider implication upon industrial integrated development for complex systems.
Authors: Yong Xing Zhang, Jian Xin Zhang
Abstract: Traditional textile dyeing industry, which is always based on open-loop control strategy, has the problem of high energy consumption and serious pollution because it is difficult to deal with the direct control problem of the dyeing process. Based on the multi-variable dyeing uptake rate integration model, this paper proposed a closed loop control system using Generalized Prediction Variable Structure Control (GPVSC) algorithm. The integrated model is used as the soft measurement method of the whole closed loop control system, which can solve the problem that it is hard to measure dyeing uptake rate directly during the batch dyeing process. In the aspect of control algorithm, the Generalized Prediction Controller (GPC) was combined with Variable Structure Control (VSC), where the temperature was selected as the control variable, which achieved the control of the dyeing uptake rate during the batch dyeing process. Simulation results show that the algorithm could exactly track and control the dyeing uptake rate during the batch dyeing process.
Authors: Shuai Liu, Ling Li Zhao, Jun Sheng Li
Abstract: Panorama image can provide 360 degrees view in one hotspot, which could solve the traditional three-dimensional expression of inadequate authenticity, difficult data acquisition as well as laborious and time-consuming modeling. However, we need other geographic information. So we propose a kind of integrated model based on GML, which contains a set of data structures to obtain panorama, terrain and 3D Data rapidly from the GML file, after analyzing GML files structure and parsing by the Document Object Model (DOM). The experiment shows that integrated model is very validated in web application using PTViewer, Java 3D and Web-related technologies.
Authors: Hui Guo, Hong Guang Li
Abstract: To on-line forecast faults in batch processes, we introduced integrated models combining MPCA and ARMA. Time series of T2 and SPE statistics obtained from MPCA models based on variable cross-correlations are employed to build univariate ARMA models in terms of their auto-correlations, predicting the h-step-ahead values implying process dynamic behaviors. The integrated models not only take advantage of both powerful data compression and prominent prediction ability, but also improve the performance of MPCA based process monitoring as well as trend forecasting, which are of great significance to ensure safe and smooth running of batch processes. Finally, experimental studies consisting in fed-batch penicillin benchmark problems demonstrate the effectiveness and potentials of the contributions.
Authors: Rong Kwei Li, Chang Fu Hsu, He Yau Kang, Amy H.I. Lee
Abstract: How to improve competitive edges to meet rapidly changing technological innovations and dynamic customer needs is crucial for the survival and success of firms under a global competitive market. Many firms realize that a good supply chain management is a necessity in the intensive competitive international market. In consequence, it is important for a firm to provide products with a lower cost and good quality at the right time and place to maintain a competitive edge. In this paper, a joint replenishment model for multiple suppliers is developed using a mixed integer programming (MIP) to determine the optimal replenishment time and quantity. The model aims to solve the shortcomings of existing joint replenishment models and to increase the performance and customer satisfaction of the replenishment system. The proposed model is applied in a solar cell manufacturer to maintain a good integrated purchase and production plan.
Authors: Da Xi Ma, Xiao Hong Liu, Li Wei Ma
Abstract: By analyzing the attributes of three-dimensional space data model, the integrated 3D spatial data adopts object-oriented method for digital landslide modeling. It achieves spatial data modeling for landslide geological entity. An experimental case is given to indicate the feasibility of this approach for spatial data modeling.
Authors: Li Hong Qiao, Sheng Ping Lv
Abstract: Integrated process planning and scheduling (IPPS) is a good way to achieve a global improvement for the performance of a manufacturing system, it has been extensively researched over the past years and it continues to attract the interest of both academic researchers and practitioners. This paper first summarizes the critical problems of IPPS and then a survey of the integrated model and optimal implementation method for IPPS is presented. The integrated model is categorized into interface-oriented integration and function-oriented integration two types based on the integration object and are discussed in detail respectively. The deficiencies of the current integrated models and the suggestion for further improvement are also given. The integration of process planning and scheduling has been implemented by variety methods and agent-based approach is discussed in more detail. Finally, future research directions and conclusions in IPPS research are discussed.
Authors: Yan Lin Guo, Guang Yu Tian, Xiao An Wang, Guo Dong Chen, Feng Fan
Abstract: This paper presents Integrated Cooperative Time-variation System (ICTS) and its application for constructional process of complex steel structures. ICTS is based on integrated model comprised of structures, boundary conditions, loads, material properties, construction facilities, where all those are supposed to be time-variation associated with a complex construction process. ICTS can deal with mainly time-variation analysis of construction processes, including pre-set deforming, integrated lifting, temporary support removal, rotation pulling, sliding and tensioning. Besides, several key control technologies of structural force and configuration during structure construction process are introduced, such as obtaining error criteria of cable’s length in tensile structures, controlling influence of constructional environmental temperature, estimating differences between internal and external tubes’ vertical deformation of skyscrapers due to shrinkage and creep of concrete of internal tube, evaluating residual internal force of complex welding structures. ICTS and these key control technologies reinforce traditional construction analysis by keeping continuity of constructional process and simulating interaction of different parts in integrated model precisely, and reach to a design-required structural state accurately after finishing constructional process.
Authors: Hua Ping Zhou, Ke Lei Sun
Abstract: This paper was linked to the requirement of coal mine information construction, firstly, on the basis of heterogeneous data environment of the coal mine to sort out, induction, classification, we established an integrated model from the coal underlying data to the application layer, which includes 4 layers: data acquisition layer, data source layer, intermediate interface layer, application layer. The model focused on the underlying data integration and intermediate interface layer data integration, put forward a design idea, which includes mine underlying data integration based on OPC interface and intermediate interface layer based on virtual database and data warehouse, the intermediate interface layer has 4 layers, they are virtual database sub-layer, the data warehouse sub-layer, meta-database sub-layer and service management sub-layer. The coal comprehensive integrated model provides a unified data access platform for integrated data query, 3D visualization integration, Mine Safety forecast and intelligent decision.
Authors: Wei Li Wu
Abstract: Power system storm disaster risk assessment need to simulate the storm scene, the storm induced electric field is one of the key places. Spatial and temporal distribution model of electronic technology is proposed to establish an electric field and magnetic storms inductively for 7-9 November 2004 geomagnetic storm scenario simulated observational data, and integration with the power system, as an application of the GIC were considered the standard case model risk analysis system running under the impact of the storm. Numerical results show that the electronic materials model can effectively simulate the storm scene and can easily be combined with the power system parameters.
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