• 한국사회정책
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• v.24 no.4
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• pp.31-62
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• 2017

This study intends to identify the difference of socio-economic characters and housing welfare needs between housing poverty types and to know the independent effects of variables on the housing poverty types. It was revealed that the double housing poverty household, housing below facility standard, unaffordable housing with low income, housing below structure performance environment standard, housing below area standard and housing below room standard should be supported one by one. And the variables related with the housing poverty types are different Suggestions were made for housing welfare policy for the double housing poverty, the control for rental housing market, the policy considering income level for unaffordable housing, the housing policy for the disable household.

• Journal of Digital Convergence
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• v.15 no.2
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• pp.475-483
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• 2017

Based on the operating system of the advanced school athletic clubs operated to attempt a new paradigm of athletic culture in the field of school athletics, this study aimed to conduct an in-depth analysis of the student athletes' academic level and seek a solution for the stream of the times and integrated change based on a relative minimum academic achievement standard applied by this system. For Analyzing the difference in academic grades between subjects to which the minimum academic achievement standard by the event is applied, one-way ANOVA and MANOVA were used. First, the grade point average (GPA) of the student athletes by the event did not reach the GPA of most general students. Second, it was predicted that in applying a standard, relative to the general students, as academic grades increased, the probability in which the student athletes do not reach the minimum academic achievement standard would increase. Third, it turned out that, even in the phased application of the current minimum academic achievement standard to the GPA of the student athletes by the event, the ratio of the attainment of the minimum academic achievement was similar.

• Journal of Korean Society of Coastal and Ocean Engineers
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• v.28 no.2
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• pp.101-108
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• 2016

In designing of the wind power facilities, the highest and lowest astronomical tides (HAT and LAT) are needed in terms of an international design tidal water levels. The AHHW and ALLW, however, have been used as the design tidal levels in Korea. The HAT and LAT in the Wido coastal sea should be estimated to satisfy the standard because the pilot wind power facilities will be located in the adjacent Wido coastal sea. In this study, the HAT and LAT are estimated using the 31-years hourly tidal elevation data of the Wido tidal gauging station and the nodal variation patterns of the major lunar components, such as $M_2$, $O_1$, and $K_1$, are analysed to check the expected long-term lunar cycle, i.e., 18.61-year's nodal variation patterns. The temporal amplitude variations of the $M_2$, $O_1$, and $K_1$ clearly show the 18.61-years periodic patterns in case of the no-nodal correction condition. In addition, the suggested HAT and LAT elevations, estimated as the upper and lower confidence limits of the yearly HAT and LAT elevations, show 40 cm greater than AHHW and 35 cm lower than ALLW, respectively.

• Journal of the Korean Data and Information Science Society
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• v.21 no.3
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• pp.397-405
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• 2010

Data mining is the method to find useful information for large amounts of data in database, and one of the important goals is to search and decide the association for several variables. The task of association rule mining is to find certain association relationships among a set of data items in a database. There are three primary measures for association rule, support and confidence and lift. In this paper we developed a association rule ranking function by decreased lift influence to generate association rule for items satisfying at least one of three criteria. We compared our function with the functions suggested by Park (2010), and Wu et al. (2004) using some numerical examples. As the result, we knew that our decision function was better than the function of Park's and Wu's functions because our function had a value between -1 and 1regardless of the range for three association thresholds. Our function had the value of 1 if all of three association measures were greater than their thresholds and had the value of -1 if all of three measures were smaller than the thresholds.

• Proceedings of the KIEE Conference
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• 2008.07a
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• pp.201-202
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• 2008

전 세계적으로 에너지 자원이 점점 감소하여 이에 대응하기 위해 정부는 주요기기에 최저효율제를 시행하고 있다. 최저효율제는 국가 또는 국제 기준에 의해 정해지며 국제표준에 부합하는 기준을 마련하는 것은 중요한 과제이다. 국가 간 교역이 많은 국제화 시대에 기기의 표준을 정립하는 것은 중요한 문제이다. 본 논문은 현재 냉장고의 관련 규격을 검토하여 국내 실정에 맞는 효율기준 관계식을 제시한다.

• Journal of Labour Economics
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• v.39 no.2
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• pp.1-34
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• 2016

We estimate the effect of an increase in the minimum wage on employment. In Korea, there is no exogenous variation in the minimum wage across regions or industries. One single minimum wage is applied to every worker in the whole country. In this paper, we exploit arguably exogenous variation in the proportion of workers affected by the minimum wage across worker groups defined by age, sex, education, tenure and establishment size. Using the data from the Survey on Labor Conditions by Type of Employment (SLCTE) from 2006 to 2014, we find that a 1% increase in the minimum wage decreases the full-time equivalent employment by about 0.14%. The effect is heterogeneous across workers; we find the effect is more adverse for female workers, low-educated, younger and older workers, workers with a shorter tenure, and workers in small- and medium-sized establishments.

• 월간 기계설비
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• no.12 s.197
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• pp.29-32
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• 2006

행정자치부가 지난 10월 27일 최저가낙찰제의 확대 시행(2006.5.25) 및 기타 운영상 미비점을 개선하기위해 지방자치단체 공사에 적용할 적격심사세부기준을 개정, 공포했다. 본지는 적격심사세부기준 중 설비건설업에 필요한 부분만을 발췌하여 게재한다.

• Journal of the Korean Society of Marine Environment & Safety
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• v.28 no.1
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• pp.83-90
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• 2022

About 90.5 % of barge-towing tugs weigh less than 200 gross tonnage and most are served by the master alone. They are also not subject to the regulations on the working hours and manning levels stipulated in the Seafarers' Act. Therefore, the master of barge-towing tugs cannot take sufficient rest during the navigational watch. Moreover, barge-towing tugs do not satisfy the human seaworthiness due to the inevitable performance of the navigational watch which must be alternately undertaken with an unqualified person, called the "Boatswain". Furthermore, there are many cases in which the master or owner of a tug fails to comply with the additionally required minimum manning levels stipulated in the Ship Of icers' Act when a tug tows a barge. This study reviews the following: (1) the regulations on the working hours and manning levels that are stipulated in the Seafarers' Act, (2) the regulations on the minimum manning levels for ship of icers of the tug's deck part that are stipulated in the Ship officers' Act, (3) marine accidents in the barge-towing tugs. As a result I suggested that one additional deck officer should be on board when a tug tows a barge through the revision of the minimum manning level for ship of icer on the deck part in order to prevent marine accidents of tugs effectively. Especially, the Act on the Punishment, etc. of the Serious Accident came into effect on January 27, 2022. If marine casualties occur continuously at sea due by the same cause, and the cause of such marine casualties would be turned out by the fatigue of the ship of icer caused by insufficient institutional arrangements, the administrator of competent Authorities of Maritime and Port could be punished, so it seems to prepare for it.

• Journal of Korean Society of Steel Construction
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• v.28 no.6
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• pp.449-458
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• 2016

The temperature data were measured for two years in a bridge specimen and the bridge in service nearby in order to calculate the effective temperature for thermal loads in steel box girder bridge. The maximum and minimum effective temperatures were calculated in the bridge specimen and the bridge according to air temperature in 2014, 2015 and 2years. The effective temperatures calculated in this study were compared the Euro code and the Highway Bridge Design Criteria. The coefficients of determination in the maximum effective temperature and the Euro code for 2 year were calculated from R = 0.927, R = 0.894 in a bridge specimen and the bridge respectively. Those of minimum temperature and the Euro code were analyzed from R = 0.992, R = 0.813 in two bridge respectively. Also, the results were evaluated as being very similar, or slightly increased as compared with the maximum temperature of the Korean Highway Bridge Design Code(Limit State Design).

• KSCE Journal of Civil and Environmental Engineering Research
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• v.31 no.5D
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• pp.719-726
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• 2011

The government intensifies screening criteria for the guarantee of reasonable bidding price and the prevention of low bidding price, however, the low tender rate still becomes an issue. This study analyzed the problems of screening criteria for the guarantee of reasonable bidding price, and then derived some major issues such as the restriction of decisive factors for initial construction cost, the rate of activities over five percent of surveyed price and the restrictive review criteria of inadequate activities. To solve thess problems, this study suggests an improved process model for estimating optimal bidding rate that can select a contractor with the guarantee of reasonable bidding price.