Journal of Applied Computing in Civil Engineering, in 2006
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RESEARCH OF DOCUMENT DATA IDENTITY VERIFICATION SYSTEM USING SEMANTIC INFORMATION
Masanori Ikebe Student Member of JSCE, Ph.D. Candidate, Kansai University Graduate School, Faculty of Informatics
Shigenori Tanaka Member of JSCE, Dr. Eng., Kansai University, Professor, Faculty of Informatics
Hitoshi Furuta Member of JSCE, Dr. Eng., Kansai University, Professor, Faculty of Informatics
Kenji Nakamura Student Member of JSCE, Ph.D. Candidate, Kansai University Graduate School, Faculty of Informatics
<Abstract> In electronic delivery of engineering works and construction fields, the standard is settled and the base is adequately maintained by the initiative of the Ministry of Land, Infrastructure and Transport. But, problems arise in the actual electronic delivery. These problems are that when order supplier and order demander exchange data, the significantly identity is not assured enough and the coexistence of similar data increase the work cost. Currently, a special application for document processing is being introduced as means to solve these problems. But, it is not a technique for fundamentally solving the problem. In this research, the layout of the document data made by a variety of data forms was analyzed, and its structural information was created. The substantial difference between documents is extracted by analyzing meaning information using the natural-language processing, and the identity is verified. In addition, document management is made more efficient by presenting detailed difference information.
<Keywords> Electronic Delivery, Document Processing, Layout Analysis, Natural-Language Processing, Identity Verification


RESEARCH DEVELOPMENT ON MEASUREMENT FOR COUNTING PEOPLE IN CROWDED SPACE
Yoshida Hiroya Student Member of JSCE, Ph.D Candidate, Master of Informatics, Graduate School of Informatics, Kansai
Tanaka Shigenori Member of JSCE, Professor, Dr. Eng., Faculty of Informatics, Kansai University
Furuta Hitoshi Member of JSCE, Professor, Dr. Eng., Faculty of Informatics, Kansai University
<Abstract> A road traffic census is an investigation to understand the realities of the road traffic in Japan, and there are the general traffic density investigation and the parking investigation. Especially, the general traffic density investigation measures the various traffics of the pedestrian, the bicycle, and the car every one hour on the weekday or holiday. Therefore, grasping local environment and local traffic density can be estimated the traffic for the future by executing road traffic census. Recently, with a development of information technology, the traffic density investigation can automatically be measured using the animation filmed with the video camera. In an existing research, a general and highly accurate method of detecting people is not established. Then, in this research, we try to establish it. Firstly, the area of people is specified by the background subtraction method and the smoothing process. Secondly, the feature of people is extracted by the labeling. Finally, the movement of people is measured from the area lap rate of the labeling. This research is applied to the crowded space like the elevator, and we aim for the development of a general and highly accurate system on measurement for counting people.
<Keywords> Road Traffic Census, Counting People, Crowded Space, Area Lap Rate


Study on the Modeling Method Suitable for Pavement Rutting
Tomiyama Kazuya Student Member of JSCE, Graduate Student, Department of Civil Engineering, Kitami Institute of Technology
Kawamura Akira Member of JSCE, Dr. Eng., Professor, Department of Civil Engineering, Kitami Institute of Technology
Shirakawa Tatsuo Member of JSCE, Dr. Eng., Research Associate, Department of Civil Engineering, Kitami Institute of Technology
<Abstract> In case of fitting geometric model of pavement rutting to the real data, the model of a high order function has the well advantage of fitness. However, it also has the disadvantage of versatility. In this study, we developed the pavement rutting models with quadratic function and spline function for quantification of pavement rutting characteristics on road surface. The two developed models are verified in respect of the adaptability of these shapes and the accommodation for the simulation method of the vehicle dynamics using the road profile data of the PIARC EVEN experiment in 1998. As a result, it is indicated that the spline function is applicable for representing pavement rutting characteristics.
<Keywords> Rutting, Pavement Rutting Model, EVEN Data, Road Profile, CarSim


Development of Simulation System of Spreading Fire Occurring Simultaneously in Many Places in an Earthquake Using Petri-net
Osamu Tsujihara Member of JSCE, Dr. Eng., Associate Professor, Department of Civil Engineering, Wakayama National College of Technology
Kazuhiro Terada Member of JSCE, Student, Advanced Engineering Faculty, Wakayama National College of Technology
Tsutomu Sawada Member of JSCE, Dr. Eng., Researcher, Professor, Department of Civil Engineering, The University of Tokushima
<Abstract> The objective of this study is to develop the simulation system of spreading urban fire in an earthquake using Petri-net. A house is modeled by the 4 places and 12 transitions. The integral number which corresponds to the spreading time inside the house is allocated to each input arc. In order to represent the catching fire from next door, another transitions are prepared between the places which belong to the different houses. The integral number which corresponds to the spreading time of inter-house is allocated to the arc. It is demonstrated by numerical experiments that the simulation system can be applied to the case of fire which occurs simultaneously in many places.
<Keywords> Petri-net, spreading fire, earthquake


SIMULATION OF DIFFUSION PHENOMENA OF CHLORINE ION THROUGH SOIL USING CELLULAR AUTOMATON METHOD
Hiroshi Fukuoka Member of JSCE, B.Eng., Chemical Technology Department, Shikoku Research Institute, Inc.
Wataru Shiraki Member of JSCE, Ph.D., Professor, President, Department of Faculty Engineering, Kagawa University
Hitoshi Inomo Member of JSCE, Ph.D., Associate Professor, Department of Faculty Engineering, Kagawa University
Kenji Iwasaki Shikoku Ricoh Co., Ltd.
<Abstract> In this study, we propose a simulation model for chlorine-ion diffusion using cellular automaton (CA), where mobile-water and immobile-water are postulated to exist in soil. Simulation results obtained from this proposed model are compared with those of observation by column experiment to verify the applicability of the model for soil pollution phenomena. The model could be reproduced tailing phenomena in breakthrough curves, and estimated distribution of immobile water in the soil column. It is shown that the complexity phenomena such as diffusion of soil pollution can be simulated simply and precisely by CA model more simply than numerical analysis.
<Keywords> cellular automaton, diffusion phenomena, chlorine ion, immobile-water


BRIDGE MANAGEMENT SYSTEM APPLICATION
Kazuya Aoki Member of JSCE, Ph.D., GIS Institute, PASCO CORPORATION
Nobuyuki Wakabayashi Ministry of Land, Infrastructure and Transport
Kei Owada Member of JSCE, M.Eng., Social System Research Division ,Mitsubishi Research Institute, INC.
Kiyoshi Kobayashi Member of JSCE, Ph.D., Professor, Graduate School of Management, Kyoto University
<Abstract> In this paper, a bridge management system application aiming to assist bridge managers to design optimal rehabilitation/maintenance (R&M) policies is presented. The system provides to the bridge managers the technical information for the planning of optimal R&D as well as managerial accounting information for the asset valuation of the bridges for every fiscal year. The system includes an estimation module that estimates the Markov transition probabilities based on the observation data set from inspections and a module that generates a simulation of the deterioration/rehabilitation processes of the bridge systems in order to evaluate the life-cycle costs of the R&M policies. The system presented in the paper is applied to the bridge systems managed by the Himeji Office of Ministry of Land, Infrastructure and Transport, and the applicability of the systems is tested against real world data.
<Keywords> bridge management, deferred maintenance accounting, asset management, life cycle costing

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