• Korean Journal of Construction Engineering and Management
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• v.8 no.4
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• pp.167-175
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• 2007

A renovation project of apartment housing is generally divided into four stages: Project inquiry stage, planning and feasibility stage, design stage and construction stage. Currently, procedure and managerial technique for a remodeling project has not been systematically established so that many companies have difficulty in doing their business. In particular, the design stage in participant which a project managers, designers, residents and engineers is more complicate than the other stages in terms of roles and working procedure. The design documents can be found trial and error if it is not well managed. The insufficient design caused by lack of ability to efficiently utilize information obtained during the stage and inappropriate decision-making not only results in diverse problems in the construction stage but also makes people suspect satisfaction and reliability on the remodeling improvements. Therefore the design stage is very significant issue on the renovation project. As the consequence, the design stage of a remodeling project is so important that it should be carefully managed, and composite understanding of the process to be executed. To do this, we provide roles and responsibility of each participant in the design stage and analyze the process where information is utilized in design stage. The information is analyzed in terms of input, tool and output.

• Korean Journal of Construction Engineering and Management
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• v.20 no.3
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• pp.39-45
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• 2019

Crew productivity in the construction industry is an important indicator of soundness and efficiency of work process, since all works in a site are conducted as groups of people. A survey was conducted in order to reveal importance and performance of major management factors affecting crew productivity in road bridge construction site using IPA. As a result of the analysis, it was found that 'Construction equipment' and 'Human resource related' factors among five major-categories are most important but with low performance. Furthermore, from another analysis with 27 factors of sub-categories, it is revealed that factors needed sustained attention are four, namely 'Just-in-time machinery delivery', 'Formation of a crew members', 'Skill of workers', and 'Site control and management', whereas those needed much more improvement are five, such as 'Machinery performance', 'Clearity of Design', 'Clearity of shop drawing', 'Timing of work instruction and approval', and 'Clearity of work instruction'. Findings from this study will enable road agencies as well as road construction experts to enhance crew productivity in a site.

• Journal of Korea Water Resources Association
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• v.55 no.3
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• pp.191-203
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• 2022

This study is a follow-up study of vulnerable areas according to the vulnerability assessment of groundwater resource management in Korea. In this study, an optimal operation plan for groundwater resource management was proposed for areas vulnerable to groundwater resource management in Korea derived from previous studies. Prior to presenting the optimal operation plan for groundwater resource management, this study grasped the current status of changes in groundwater level and seawater penetration area for vulnerable areas using MODFLOW, a groundwater flow analysis program. As a result of the analysis using basic data for 10 years from 2009 to 2018, the groundwater level fell and the sea infiltration area increased. The final purpose of this study, the optimal operation plan for groundwater resource management, was selected as a total of four alternatives that can be expected to have positive effects to increase groundwater level and reduce seawater penetration. As a result of analyzing the amount of change in groundwater level and seawater penetration by applying the selected optimal operation plan, positive effects were found in all methods. It is expected that the optimal operation plan for groundwater resource management proposed in this study will be applied not only to vulnerable areas of groundwater resources in Korea but also to areas requiring development to establish efficient groundwater resource management measures.

• Journal of the Korean Society for Library and Information Science
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• v.34 no.1
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• pp.265-295
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• 2000

Education of library and information science must focus on practical education acted upon as a laboratory room in the characteristics of learning, because it cultivates a librarian as an information expert who can conduct professional affairs and services, applying traditional theory to the practical business of library and information. This dissertation suggested a new paradigm of an instructional media center as an advanced laboratory room which faithfully can run the curriculum of a library and information science for cultivating librarians, information experts who can satisfy the 21C information society. To carry out this purpose, I considered the various opinions of professors and librarians, after investigating and analyzing facilities and furnishings of laboratory rooms and teaching and learning data related to departments of library and information science in 32 universities. These contents can be summarized as follows : 1) Constructional media centers connected to education of library and information science sets laboratory rooms for practical classification and cataloging classes; laboratory rooms for film media which can utilize advanced media, listening tools, and practical materials; information management laboratory rooms which can experience the various information research methods through the Internet, cultivate the ability of information application, and teach the curriculum of library and information science related to computers. 2) Arrangement plans linked to laboratory rooms for classification and cataloging, one for film media, and one for information proceedings are as follows: , , and . 3) The size of each room is $162m^2$ (49.1pying); the number of persons to be admitted is about 40 to 50; each room has one media expert and one assistant as operating manager of exclusive responsibility. 4) Instructional & learning data which must be contained as instructional media of library and information science include computers, marginal tools related to it, listening materials, supplies for ordering books, teaching aids containing various equipment and tools, textbooks for practice, books connected to classification and cataloging for practice, and textbooks related to practical subjects and reference books. 5) Industrial media centers belonging to library and information science require for practice, general furnishings like bookshelves, and various material depository boxes.

• The Journal of Engineering Geology
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• v.33 no.1
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• pp.105-119
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• 2023

Water supply is decreasing due to climate change, and coastal and island regions are highly dependent on groundwater, reducing the amount of available water. For sustainable water supply in coastal and island regions, it is necessary to accurately diagnose the current condition and efficiently distribute and manage water. For a precise analysis of the groundwater flow in the coastal island region, submarine fresh groundwater discharge was calculated for the Seongsan basin in the eastern part of Jeju Island. Two methods were used to estimate the thickness of the fresh groundwater. One method employed vertical interpolation of measured electrical conductivity in a multi depth monitoring well; the other used theoretical Ghyben-Herzberg ratio. The value using the Ghyben-Herzberg ratio makes it impossible to accurately estimate the changing salt-saltwater interface, and the value analyzed by electrical conductivity can represent the current state of the freshwater-saltwater interface. Observed parameter was distributed on a virtual grid. The average of submarine fresh groundwater discharge fluxes for the virtual grid was determined as the watershed's representative flux. The submarine fresh groundwater discharge and flux distribution by year were also calculated at the basin scale. The method using electrical conductivity estimated the submarine fresh groundwater discharge from 2018 to 2020 to be 6.27 × 10⁶ m³/year; the method using the Ghyben-Herzberg ratio estimated a discharge of 10.87 × 10⁶ m³/year. The results presented in this study can be used as basis data for policies that determine sustainable water supply by using precise water budget analysis in coastal and island areas.

• Journal of Korean Library and Information Science Society
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• v.44 no.1
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• pp.385-408
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• 2013

The purpose of this study is to build the tax ontology which can be used to manage imposables by the state or local governments. In this, the tax and related concepts were analyzed and then concept hierarchy i.e., taxonomies were formed. Especially, in the concept hierarchy, after multiple inherits were decomposed as 'primitive concepts' and then Rector's 'methodology of ontology implementation normalization', in which defined concepts were recombined, was used. The methodology employed was that the tax system, which was entangled with the direct taxes, local taxes, and property taxes that has multiple-inherits, was expressed explicitly and logically. After that, automatic classification was carried out through the inference engine, consistency was verified. Finally, some practical cases of ontology created were enumerated.

• Journal of Korean Library and Information Science Society
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• v.44 no.1
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• pp.201-225
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• 2013

In order to overcome the problems of current approaches to metadata interoperability based on element mapping, this research proposed Master Element Framework that is an alternative approach to metadata interoperability. It is an approach to integrate metadata elements that have the same value, instead of direct mapping between similar elements. Master Element Framework is constructed to semantically integrate metadata elements in a hierarchical order and to interconnect between heterogeneous metadata standards. This approach is expected to be an alternative approach to metadata interoperability.

• Journal of Korean Library and Information Science Society
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• v.35 no.4
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• pp.85-104
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• 2004

According to the increase of digital information, it comes to front to develop the policy about preservation of digital information, regarding it as national heritage. Especially, in recent years, KOREA has invested a lot of m to develop National Knowledge Database. So it is indispensable to preserve it permanently. This study categorizes knowledge information to 4 categories and suggests desirable direction for preservation policy and organization And design $\ulcorner$knowledge Creation$\cdot$Circulation$\cdot$Preservation system$\lrcorner$, which is expanded on current functional flow of Knowledge information.

• Journal of Korean Library and Information Science Society
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• v.40 no.3
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• pp.181-202
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• 2009

The object of this study is to survey the private organizations which have issued the certificates according to the reading education, to describe the right curriculum for the private certificate, and to propose the proper subjects and curriculum for it. The results of the survey may be summarized as follows; 1) The private organizations which have issued the certificates are so many. 2) The certificates which have been issued are not to acquire the proper authorities' cachet. 3) The kinds of the certificate are reading instructor, reading therapist, reading couch, etc. 4) It's necessary for the chief organization to manage all of the organizations which have issued the reading education certificates. 5) It's thought that it's necessary to study more the subjects and curriculums as for the proper reading education certificates.

• Proceedings of the Korea Water Resources Association Conference
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• 2006.05a
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• pp.1027-1031
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• 2006

본 연구는 자연형 소하천의 유형별, 지역별 자연형 하천공법의 파악 및 시범사업의 적용.평가를 통하여 소하천 특성에 적합한 치수구조와 안정성을 갖추면서 생태계와 조화를 이루고, 친수성과 경관 등 소하천의 환경기능을 향상시키는데 필요한 공사시행의 설계도서를 작성하는데 그 목적을 가지고 수행되었다. 자연형 이동소하천정비 시범사업은 축제공, 배수공, 구조물공, 조경공 등의 공종과 자연석 쌓기, 식생축조블록, 그린리버블록 등 11개의 다양한 호안공법이 적용되어 2003년 12월에 준공하였다. 본 자연형 이동소하천 정비시범 사업에서는 공사 전.중.후에 '하천수질 및 유량측정, 홍수량 측정 및 수리분석 그리고 생태계, 하천수리'에 대한 모니터링 사업을 2003년부터 2006년 현재까지 계속적으로 수행하고 있다. 본 연구는 자연형 소하천정비 시범사업 중에서 유역 내 2003년부터 2005년까지 하천수질 및 유량측정 모니터링 결과를 분석한 것이다. 하천수질 및 유량측정은 하천환경계획을 위한 기본조사로서 효과적인 하천환경관리를 도모하기 위한 기준을 정하기 위한 것이다. 하천 수질 및 유량측정은 하천수질이 악화되는 갈수기를 택하여 월별 일일 4회(6시간 간격)에 걸쳐 시행되었고, 수질측정 항목은 BOD, DO, TP에 대하여 조사 분석되었다.