• 주택과사람들
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• s.112
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• pp.48-120
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• 1999

• Journal of Educational Research in Mathematics
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• v.20 no.3
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• pp.255-274
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• 2010

The main goal of this study is to provide a practical help to teachers who want to practice Problem-Based Learning in mathematics for establishing and realizing PBL environment. This study also produces mathematics PBL Learning Model and Criteria to Judge to help practice and to vitalize PBL in mathematics. To solve the research topics, I reviewed theoretical issues related to PBL, which became theoretical bases of this study. And then, from the theoretical background, items of criteria to judge mathematical problems in mathematics PBL are abstracted. And, through checking on content validity by experts, criteria to judge mathematical problems in mathematics PBL are completed. Also, based on previous PBL models, learning model in mathematics PBL that takes characteristics of mathematics into account is suggested through case studies by observing, a qualitative research method, on PBL study to materialize it. This research is expected to help teachers who want to practice PBL in mathematics.

• Journal of the Korea Construction Safety Engineering Association
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• s.12
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• pp.75-100
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• 1994

산업안전보건법 시행령 개정('93.11.20. 대통령령 제14010호)과 관련된 내용을 정비하고 경제행정규제완화작업의 일환으로 평소 안전관리가 양호한 사업주에 대하여 안전ㆍ보건교육실시 의무를 일부 면제하는 등 기업의 부담을 덜어주며,유해ㆍ위험작업을 수행할 수 있는 자의 자격 기준을 일부 조정하는 등 그간의 여건변화로 현실성이 결여된 제도를 산업안전보건환경의 변화에 적합하도록 일부내용을 보완ㆍ게선하는 것을 골자로 한 「산업안전보건법 시행규칙」,「산업안전기준에 관한 규칙」,「산업보건기준에 관한 규칙」,「유해ㆍ위험작업의 취업제한에 관한 규칙」,이 개정ㆍ공포됨에 따라 이에 개정된 규칙들의 신ㆍ구조문 대비표를 수록하여 도움을 주고자 한다.

• The Korean Journal of Archival Studies
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• no.53
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• pp.201-228
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• 2017

Recently, public organizations have been improving the classification in order to introduce records management reference table in accordance with the act on the management of public archives. However, there is no system to mount the revised records management reference table, and there is a problem in usability. The purpose of this study is to design a system function to manage the classification which is the foundation of records management for public organizations. In order to design the function, interviews with the records management specialists of the five public organizations were conducted. Based on this, we have designed a multi-classification system registration function, a hierarchical structure setting function of records, and a record management standard management function.

• Journal of the Korean Society of Marine Environment & Safety
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• v.25 no.7
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• pp.827-833
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• 2019

There are several factors to consider for a ship to enter or depart a port safely. It is particularly important to identify the tides in the port to reduce the risk of stranding the ship. Most previous studies have focused on finding and analyzing harmonic constants. However, the research on the analysis and accuracy of harmonic constants in other hydrographic agencies is lacking. In this study, six Korean ports (Incheon, Gunsan, Yeosu, Busan, Ulsan, and Sokcho) were compared to the British and Korean tide tables based on actual information. To find the cause of tidal difference, the tide height, tide time, and form factor were calculated using harmonic constants. The information was then compared with British and Korean data. As a result of the difference in analysis of actual information and tide tables, there was a difference between the actual tide height and time at each port. The cause was found to be the difference in the harmonic constant, tide, and form factor between the UK and Korea. Therefore, this study, the Korean standard port should be added to the British tide table, and harmonic constants, which are the criteria for creating tides, must be constantly updated with the latest information. Additionally, the tide tables produced in each country are more accurate than the tide tables produced in UK.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.9
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• pp.133-141
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• 2019

Crew rostering in railway operations is usually done by arranging a crew diagram in accordance with working standards every month. This study was done to identify the problems related to the creation of crew rosters in railway operations and to suggest an optimum crew rostering method that can be applied in railway operations planning. To do this, the work standards of a railway company were identified, and a genetic algorithm was used to develop an optimal roster with equal working time while considering actual working patterns. The optimization process is composed of analysis of the input data, creation of work patterns, creation of a solution, and optimization steps. To verify the method, the roster derived from the proposed process was compared with a manually created roster. The results of the study could be used to reduce the deviation of business hours when generating a roster because the standard deviation of working time is the objective function.

• 주택과사람들
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• no.30 s.47
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• pp.86-188
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• 1994

• Journal of Korean Society of Forest Science
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• v.97 no.3
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• pp.332-339
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• 2008

This study was carried out to develop the score table for prediction of landslide hazard in Gyeongsangbuk-Do province. It was studied to 172 places landslided in 23 cities and counties of Gyeongsangbuk-Do province. An analyze of the score table for landslide hazard was carried out through the multiple statistics of quantification method (I) by the computer. Factors effected to landslide occurrence quantity were shown in order of slope position, slope length, bedrock, aspect, forest age, slope form and slope. As results of the development of score table for prediction of landslide hazard in Gyeongsangbuk-Do province, total score range was divided that 107 under is stable area (IV class), 107~176 is area with little susceptibility to landslide (III class), 177~246 is area with moderate susceptibility to landslide (II class), above 247 area with severe susceptibility to landslide (I class).

• 월간 기계설비
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• s.247
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• pp.25-28
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• 2011

조달청 시설공사 적격심사 세부기준의 경영상태평가방법 등이 지난 1월 5일자로 개정되었다. 개정된 주요 내용과 신 구조문 대비표는 다음과 같다.

• Journal of Korean Society of Archives and Records Management
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• v.18 no.3
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• pp.125-143
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• 2018

This study is a record of the process of jointly designing the records classification scheme and the retention schedule for archival appraisal, which are vital in records management. A total of 8 institutes participated voluntarily and redesigned the retention schedule, which consists of 16 common functions, 66 tasks, and 381 files for about 4 months. The process consists of reviewing the regulations related to the records management of the participating organizations, determining the hierarchy and scope of the retention schedule, deriving 16 common functions as well as the unit task for each function, and constructing the file of each task. In situations wherein it is difficult to expect the government-led policy and strategy specific to the research institute and the research records management, the retention schedule designed jointly by the records managers of the scientific and technological field serves as a useful records management tool. This collaborative effort between records managers of similar agency records will also be significant in jointly coping with the new policy and innovation plans in the future.