• Journal of Korean Tunnelling and Underground Space Association
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• v.21 no.6
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• pp.837-847
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• 2019

Korea's long underground roads are being promoted around the metropolitan city center to realize advanced transportation networks. Many disaster prevention facilities are applied to secure fire safety of the closed and long-distance underground roads. As the facility response and fire suppression subjects are unclear, additional human and material damages from fire spread are inevitable. Therefore, in this study, we developed a remote automatic fire extinguishing system that uses the fire extinguishing water inside the fire hydrant to monitor the CCTV in the management room and sprays it directly to the fire site through automatic control. The design application method was studied through the performance improvement that can be put into practical use.

• Journal of the Korean Data and Information Science Society
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• v.27 no.3
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• pp.599-607
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• 2016

The first patient of Middle East respiratory syndrome caused by a novel coronavirus infection in Korea was confirmed on May 20, 2015. After that, MERS spread over the country. In recent years, patients of MERS have been found around the Arabian Peninsula and the case fatality ratio of MERS in those area was been reported to range from 30 to 40%. In this paper, we estimate the case fatality ratio of MERS of Korea using data of 186 infections until December 1, 2015. In this study we propose a novel estimator of the case fatality ratio using information of the patients severity condition as well as records on the days of confirmation and death or recovery of the patient. By using publicly available data of the Department of Health and Human Services Centers for Disease Control, we evaluate a performance of the estimator and demonstrate a stability of the estimator from the early stage of the epidemic.

• Journal of Convergence for Information Technology
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• v.8 no.2
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• pp.37-44
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• 2018

This study examined the moderating effects of gender on the influences of parental parenting attitudes on peer attachment in early adolescents. Data analysis was conducted over 1,912 respondents who met the purpose of this study among Korean Youth Panel KCYPS 7th year data of 1st grade in elementary school. The research methods examined the influence of variables on dependent variable, with difference of gender influences. As a result, it was found that gender, the control variable, and overall grade satisfaction affected peer attachment. Second, positive and negative parenting attitudes have confirmed positive and negative effects on peer attachment. Third, moderating effect was confirmed as parenting attitudes by gender show the difference of impact on peer attachment. Therefore, this study suggest to apply it to practical and theoretical implications and basic data for the program development to improve youth peer relations.

• Journal of Korean Philosophical Society
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• v.117
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• pp.399-418
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• 2011

Die vorliegende Untersuchung zielt darauf ab, erstens die Entstehung der $Fr{\ddot{u}}hromantik$ in Bezug auf damalige Kantkritik zu betrachten, zweites Jacobis Gedanke, der die Bewegung der $Fr{\ddot{u}}hromantik$ $ansto{\ss}t$, mittels seines Zentralbegriffs "Unbedingtes" und "$Gef{\ddot{u}}hls$" zu rekonstruieren und drittens den Kerngedanke der $Fr{\ddot{u}}hromantik$, der die unendliche $Ann{\ddot{a}}herung$ betont, durch Novalis zu $erl{\ddot{a}}utern$. $F{\ddot{u}}r$ Jacobi wird das Unbedingte als "Glaube" angesehen, weil es nicht nur der $M{\ddot{o}}glichkeitsgrund$ des Wissens ist, sondern die Vermittlung des Wissens ${\ddot{u}}berschreitet$. $W{\ddot{a}}hrend$ es die Bedingung des Wissens ist, ist es das "Sein", das den Bereich des $Bewu{\ss}tseins$ transzendiert. Somit Jacobis "Unbedingte" bzw. "Ur-Sein" ist nicht nur die Grundlage des metaphysischen Monismus, sondern die realistische Substrat, die auf den Bereich des Wissens nie reduziert wird. $F{\ddot{u}}r$ Novalis wird das Unbeclingte dem $Bewu{\ss}tsein$ nicht gegeben, vielmehr ist es der Gegenstand der Sehnsucht und des Strebens. Hier wird die Philosophie als unendliche $Ann{\ddot{a}}herung$ zum Unbedingten bestimmt. Philosophie ist sowohl die $urspr{\ddot{u}}ngliche$ $T{\ddot{a}}tigkeit$ des mit dem Transzendeten $ber{\ddot{u}}hrenden$ $Gef{\ddot{u}}hls$ als der unendliche Trieb, der den Grund zu erkennen versucht.

• International Area Studies Review
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• v.12 no.3
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• pp.3-23
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• 2008

We investigated the effects of policy reform, industrial transformation, and initial conditions on the agricultural productivity changes in 28 transition countries. Our findings are: (i) Asian and CEE transition countries performed better than CIS countries, while the performance improvement of CEE countries seems to be more prominent compared to that of Asian and CIS countries; (ii) The technical progress proved to be the main source of productivity growth, particularly in CEE countries; (iii) Reform policy and industrial transformation seems to have positive effects on the performance of agricultural sector and its changes; (iv) The initial conditions also matter.

• 한국벤처창업학회:학술대회논문집
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• 2019.04a
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• pp.175-179
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• 2019

1년에도 수십 수백 개씩 스타트업이 생겨나고 있다. 아마도 모두 미래의 구글과 페이스북, 그리고 아마존이 되길 희망하며 하루하루 가열차게 달리고 있다. 하지만 그 많은 스타트업 중 소위 성공했다 불릴 수 있는 기업은 손에 꼽는다. 능력 있는 창업가, 기발한 사업 모델과 아이디어 그리고 이를 뒷받침해 줄 기술력과 자본이 있다고 성공할 수 없다. 스타트업 기업을 굴러가게 하는 힘은 결국 그 조직의 구성원에게서 나오기에 성공한 스타트업에겐 모두 그들 만의 '조직문화'가 있다. 그게 모두에게 좋은 문화일 필요는 없을 것이다. 그 조직에 가장 접합한, 그래서 구성원의 구성원의 공감대를 사 '일하고 싶은 회사'가 될 수 있게 하는 '조직 문화'가 있는 스타트업이 수많은 인재를 모아 성장을 거듭해 올 수 있었고 그것이 결국 스타트업을 성공으로 이끌었던 것이다. 이런 조직 문화는 회사 초창기에 세팅할수록 해당 기업의 성공 확률도 높아진다. 7년 미만의 초기 스타트업 기업을 대상으로 조직문화 유형이 스타트업 구성원의 조직 몰입과 조직성과에 어떠한 영향을 주는지에 대한 실증분석을 목적으로 하였다. 초기 스타트업 기업의 조직문화 차원은 경쟁가치모형의 혁신문화와 위계문화로 구분하였으며, 조직성과는 스타트업의 서비스, 제품을 경험한 이용자들의 서비스 만족도를 활용하였다. 조직문화는 외부환경에 대한 적응과 조직내부 통합의 문제를 해결하기 위하여 구성원들에 의해 창조 발전되어 학습되는 기본가정으로서 스타트업 구성원들에 의해 공유된 가치(values), 신념(beliefs), 규범(norms)의 체계로 정의한다. 따라서 어떠한 조직문화를 갖는냐에 따라 조직 구성원의 몰입, 충성심, 직무동기, 직무성과는 물론 조직성과와 혁신을 포함하는 여러 조직 요인도 직 갑적인 영향을 받는다. 7년 미만의 초기 스타트업 혁신문화가 스타트업 구성원의 조직몰입에 긍정적인 영향을 미치며, 조직몰입이 스타트업 서비스, 제품을 경험한 이용자들의 서비스 만족도에도 긍정적인 효과가 있는 것으로 나타났다.

• Journal of the Korean Data Analysis Society
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• v.20 no.6
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• pp.3227-3238
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• 2018

This study attempts to investigate the trajectories of socio-economic deprivation on the depression trajectories among middle-aged individuals using a latent growth model over the last five years. Using the Korea welfare panel study data ranged from the year 2013 (8th wave) to the year 2017 (12th wave), a sample of 7,437 aged over 40 was selected. Three hypothesis was proposed as follows. Is the trajectory of depression changing over the years? Are the initial values of socio-economic deprivation causally related to the initial values of depression? Are the rates of change in socio-economic deprivation causally related to the rates of change in depression? Results showed that the growth curve of depression tended to decline negatively over the five-year period. As the intial values of socio-economic deprivation increased, so did the initial values of depression move upwards. Finally, as the changes of socio-economic deprivation tended to get larger, those changes of depression also accordingly increased as well. The public policy implications based on the current study were discussed to pay more attention to those middle-aged individuals suffering from socio-economic deprivations.

• Journal of Convergence for Information Technology
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• v.11 no.1
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• pp.91-101
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• 2021

The purpose of this study is to understand the performance of the initial adaptation support program for people with mental illness living in independent housing. The group of people with mental illness living in independent housing from T mental rehabilitation facilities in Seoul were assigned to the experimental group, and the other group of people with mental illness in living facilities and group home were assigned to the control group. After that, the degree of community performance between groups was compared with pre-post tests. As a result of the study, the pre-post analysis of the total social support of the experimental group showed significant differences. Also, the results were statistically insignificant in all of the control groups, so the initial adaptation support program was found effective in improving the total social support of the independent housing group. Based on the results of this study, the direction of housing support and establishment of a performance system for housing services for stable settlement of discharged people with mental illness into the community was suggested.

• Tunnel and Underground Space
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• v.32 no.1
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• pp.1-19
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• 2022

In this report, new standard, published by Japanese Geotechnical Society, on in-situ stress measurements by hydraulic fracturing was reviewed. In the standard, modification was made for the calculation of fracture re-opening pressure in consideration of fracture surface roughness and residual aperture. The standard also presents how much the system compliance influences the estimation of the fracture re-opening pressure and subsequent in-situ stresses. It is shown that the stiffer the rock mass is, the system compliance should be sufficiently small enough so as to obtain in-situ stress measurement with higher confidence.

• Journal of Advanced Navigation Technology
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• v.27 no.3
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• pp.269-273
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• 2023

Based on the K-UAM roadmap, this study was conducted to select major education and training subjects necessary for the composition of the initial UAM pilot education and training curriculum. Currently, UAM aircraft have similar characteristics to rotorcraft that can take off and land vertically around VTOL functions. Therefore, in this study, the Rotary Wing Pilot Training Curriculum of the Army Aviation School, which represents Rotary Wing Flight Education, was selected as a comparative group, and education and training subjects for initial UAM pilot training were selected. First, a hierarchical structure for the AHP survey was designed based on the Army's rotorcraft pilot education and training subjects, and the AHP survey was conducted by selecting experts from each class. If the education and training subjects given as priorities through AHP analysis are applied to initial UAM pilot training, it is expected to contribute to the effect of education and training and ultimately to the safe operation of UAM.