• Title/Summary/Keyword: data base construction

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DATA BASE SYSTEM DEVELOPMENT AND STATISTICAL ANALYSIS OF EIR3 ACCIDENTS OF SEVERAL COUNTRIES

  • Kim, In-Tae;Kim, In-Won;Song, Hee-Oeul
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 1997.11a
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    • pp.319-326
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    • 1997
  • The fire accident cases of several countries such as Korea, Japan, United States, etc., were collected and compared statistically. The trends of fire accidents in several countries will help us establish detailed plans for fire protection and reduce the possible fire accidents in the future. For construction of data base system, the program FADS was developed, which is operable in Windows environment.

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A Study of the Vegetation and Vegetation Base around the Goesan Gun (괴산군 일대의 식생 및 식생기반에 관한 연구)

  • Yoon, Jae-Ro;Min, Hyun-Kee;Ju, Jin-Hee;Yoon, Young-Han
    • Journal of Environmental Science International
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    • v.19 no.5
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    • pp.533-541
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    • 2010
  • The purpose of this study is to grasp what characterizes the vegetation base of the natural forest as a latent vegetation in the middle region of Korea and thus to offer basic data when improving the vegetation base in the middle region being built or to be built in the future. The findings of this soil section survey show the following: The soil is brown to red color soil group on the whole. In addition, the soil's physical features like soil hardness are rated as high level, which results from the fact that the forest soil exits in its natural form under less influence of stamping. The pH of soil shows a weak acidity, like Korean normal soil. Specific electrical conductance is also rated as middle to high level in accordance with the standards of landscape architecture. The Salix koreensis community and the Pinus rigida community are different from other communities in terms of total nitrogen, available phosphate and exchangeable $K^+$ content. Specifically, the two communities are opposed to each other in terms of total nitrogen and available phosphate, while being similar to each other in terms of available phosphate and exchangeable $K^+$ content. This seems to result from the fact that they are located near each other. In addition, the two communities are characterized by the fact that they are distributed at the altitude mean relatively lowest and in the valley. To sum up, the forest soil around Goesan Gun is of middle level on the whole according to the landscape standards, when judging it in terms of vegetation base. Accordingly, it seems that the construction of the vegetation base around Goesan Gun will not require large investment expenses for soil improvement. Also, it seems that the spatial scope of research is needed to expand the basic data on the construction of the vegetation base for the whole middle region of Korea.

A Study on the Improving Management Method for the Small Projects Applying Senior Construction Engineer (고령 건설기술자를 활용한 소규모공사의 공사관리방법 개선에 관한 연구)

  • Song Jin-Woo;Lee Sang-Beom
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2004.11a
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    • pp.305-310
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    • 2004
  • The building below standard scales to be built only by constructive report to authorities. Construction law 8 illustrates that supervision should be deployed in all the construction sites at the building which is found to have more than 3 floors and also to have more than $200m^2$ of total squares in especially outside area of city plan zone. Such a small construction is have a important and the most basic meaning. Many problems were found to occur in all the constructive places which were out of the limit of this law. The construction sites were found to be controlled by public official's visiting without supervisors and designers of architecture. Technique of construction in architecture was found to be not different from that of 1980. The security of employees in construction on sites has a serious problem. Because of choosing all the materials of the building without a reasonable point. All the building were found to have a law material about inside and outside aspects. The purpose of this study are to examine existing law about a small project and than to analyze the situation of constructive control through questionnaires and interviews with all the supervisors. Based on the data base of engineers who had a great experience in construction sites, The purpose of this study is also to suggest and advise the method of controlling all the items in architecture through on and off line.

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A Study on the Development of Causal Knowledge Base Based on Data Mining and Fuzzy Cognitive Map (데이터 마이닝과 퍼지인식도 기반의 인과관계 지식베이스 구축에 관한 연구)

  • Kim, Jin-Sung
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 2003.05a
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    • pp.247-250
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    • 2003
  • Due to the increasing use of very large databases, mining useful information and implicit knowledge from databases is evolving. However, most conventional data mining algorithms identify the relationship among features using binary values (TRUE/FALSE or 0/1) and find simple If-THEN rules at a single concept level. Therefore, implicit knowledge and causal relationships among features are commonly seen in real-world database and applications. In this paper, we thus introduce the mechanism of mining fuzzy association rules and constructing causal knowledge base form database. Acausal knowledge base construction algorithm based on Fuzzy Cognitive Map(FCM) and Srikant and Agrawal's association rule extraction method were proposed for extracting implicit causal knowledge from database. Fuzzy association rules are well suited for the thinking of human subjects and will help to increase the flexibility for supporting users in making decisions or designing the fuzzy systems. It integrates fuzzy set concept and causal knowledge-based data mining technologies to achieve this purpose. The proposed mechanism consists of three phases: First, adaptation of the fuzzy membership function to the database. Second, extraction of the fuzzy association rules using fuzzy input values. Third, building the causal knowledge base. A credit example is presented to illustrate a detailed process for finding the fuzzy association rules from a specified database, demonstration the effectiveness of the proposed algorithm.

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A Study on the Improving Management Method for the Small Projects applying Senior Construction Engineer (고령 건설기술자를 활용한 소규모공사의 공사관리방법 개선방안)

  • Song, Jin-Woo;Jeong, Yong-Sik;Lee, Sang-Beom
    • Journal of the Korea Institute of Building Construction
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    • v.5 no.2 s.16
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    • pp.115-121
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    • 2005
  • The building below standard scales to be built only by constructive report to authorities. Construction law 8 illustrates that supervision should be deployed in all the construction sites at the building which is found to have more than 3 floors and also to have more than loom of total squares in especially outside area of city plan zone. Such a small construction is have a important and the most basic meaning. Many problems were found to occur in all the constructive places which were out of the limit of this law. The construction sites were found to be controlled by public official's visiting without supervisors and designers of architecture. Technique of construction in architecture was found to be not different from that of 1980. The security of employees in construction on sites has a serious problem. Because of choosing ail the materials of the building without a reasonable point. All the building were found to have a law material about inside and outside aspects. The purpose of this study are to examine existing law about a small project and than to analyze the situation of constructive control through questionnaires and interviews with all the supervisors. Based on the data base of engineers who had a great experience in construction sites, The purpose of this study is also to suggest and advise the method of controlling all the items in architecture through on and off line.

A Conceptual Model for Automated Cost Estimating Using Work Information Classification System of Apartment House (공동주택의 공사정보분류체계를 활용한 적산 자동화 개념 모형 개발)

  • Lee, Yang Kyu;Park, Hong Tae
    • Journal of the Society of Disaster Information
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    • v.10 no.1
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    • pp.15-24
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    • 2014
  • The study presents work information classification system of apartment house which can organize all construction management services throughout the planning and management of a construction such as the decomposition of the design process, the assembly of construction process and cost estimating, etc. In addition, the study suggested a way to connect work information classification system based on a relational database in working order and built a conceptual model for automated cost estimating by utilizing established data base. A conceptual model for automated cost estimating will resolve the fundamental problems of the existing cost estimating system and will be able to take advantage of scientific cost estimating system at the construction site of apartment house.

A basic Study on Establishment Plan of Design Information Traceability through Design Information Flow Identification for Controlled Equipment during the NPP Lifecycle (원전 생애주기 관리대상 기기의 정보 흐름 규명을 통한 설계정보 추적성 구현방안에 대한 기초 연구)

  • Lim, Byung-Ki
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2017.11a
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    • pp.183-184
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    • 2017
  • Some of the information created during the design phase of an New NPP life cycle is useful only for the execution of the construction phase; however, much of the information greatly impacts the longer-term operational phase. To most make use of design and construction information produced by data based design system during the construction and operation phase, This research is identified controlled data and drawn design information of controlled equipment from documents generated during the life-cycle stages. This study aimed to analyze related documents to assure traceability of controlled equipment from design phase through O&M and then suggested DB(Data Base) based control method on technical information of major equipment throughout nuclear power plant lifecycle.

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Using Survey information of BIM-applied Project - Construction Industry Specialist Interview - (스마트 건설에서 디지털 측량정보의 활용)

  • Jo, Jae-Hee;Choi, Young-Woo;Lee, Ji-Woo;Kim, Hwan-Yong
    • Journal of KIBIM
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    • v.10 no.3
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    • pp.33-42
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    • 2020
  • Recently, in the smart construction field, it is possible to construct spatial information of 3D data base quickly and accurately using drones, LiDARs and ARs,. Most public ordering institutions are pushing for the efficiency of construction work through establishing and announcing road maps and guidelines for utilizing BIM for the entire life cycle of construction. However, in most policies, the impact of 3D data on the entire life cycle is limited by only partially constructing and utilizing 3D data or by being mentioned. In addition, many public institutions, construction companies and planning companies did not actively utilize survey information during the actual construction phase, despite the possibility of using 3D survey information. In order to confirm the utilization of survey information, a total of eight private construction companies were selected and interviewed by experts. The analysis shows that most of companies lack the performance of drone measurements or have a lack of awareness of advantages, and among them, construction companies are relatively active. Based on these opinions, this study examined the usability of surveying information and examined measures to expand the utilization of survey information in legal and institutional aspects, technology development aspects and industrial development.

Development of Decision System for Determining Priorities of Re-construction Reservoirs (농업용저수지 재개발을 위한 우선순위 선정시스템 개발)

  • Lee, Gwang-Ya;Kim, Hae-Do;Jeong, Gwang-Geun
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 2005.10a
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    • pp.26-31
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    • 2005
  • In national prospective, the needs to develop water resources has been increased due to water shortage from diverse use of water resources in agricultural areas. Existing agricultural water demand, which has mainly been limited to the use of farming, are now expanding to diverse water uses such as supporting daily lives, diluting environmental pollution as well as industrial use for agricultural complex currently under construction in agricultural region. In this situation, for the sake of effective procurement of water resources and supply method, it is definitely required to enhance the effectiveness of budget investment and project proceedings through integrated re-development which links projects to strengthen existing dams, reservoirs and hydraulic facilities. The major scopes of this research includes developing different types of system such as selecting potential sites to re-construct reservoirs including generating base maps and thematic maps, data collection regarding water demands and reservoir status; analyzing reservoir data; estimating developable capacity and index calculation; and forecasting inundated areas. In addition, this study provides other products such as developing output generation system which can support wide use of data built and analyzed; database generation for better data management; data analysis including selection, extraction, indexation, and calculation of base items through standardization; data security system prohibiting exterior proliferation and malicious manufacturing of data.

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A Study on the Development of the Safety Information System according to the construction process (건설공정별 안전정보시스템 구축에 관한 연구)

  • Go Seong-Seok;Lee Han-min;Song Hyuk
    • Korean Journal of Construction Engineering and Management
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    • v.2 no.4 s.8
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    • pp.99-106
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    • 2001
  • Construction workers occupies only $10{\%}$ of the entire industry, but the $30{\%}$ of the critical accidents in whole industry occurs in construction industry. Since there are many dangerous process and lack of safety information measures in the construction industry, both short and long term operation in education, training, and information are necessary. Examples for existing accidents in construction sites will be very useful for preventing accidents. And if the research for individual accidents perfectly achieved, it will give valuable information to construction sites which will be very useful for preventing accidents. The object of this study is to develop construction safety information system to give safety information to construction process by work field. The data base are made from 860 major accidents mostly in buildings and apartments in year 1999 through 2000(KOSHA).

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