• Korean Journal of Culture and Social Issue
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• v.13 no.1
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• pp.91-114
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• 2007

This study was performed to decide how to do research and resolve on mental health problems of the people after reunification, which is recognized as ultimately important issue. At first we analyzed the case of Germany. To do so, we reviewed the existing research, which included various issues such as reunification for the Germans, chronological research flow analysis, the issues of mental health, research methods for mental health problems, therapy for mental health problems and so on. And then we sought the ways to connect research for the North Korean defectors and unification era, and suggested the several research orientation and methods for mental health study of the unification period.

• Clinical and Experimental Pediatrics
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• v.48 no.1
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• pp.75-80
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• 2005

Purpose : Internal tibial torsion is prevalent in East Asian countries such as Korea and Japan, where sitting on the floor is common behavior. Internal tibial torsion or excessive lateral tibial torsion may cause esthetical, functional, or psychological problems and also may induce degenerative arthritis in older age. The purpose of this study is to measure the tibial torsion in children of the Jeju area. Methods : Tibial torsion was measured in 1,042 lower extremities of 521 children from one to 12 years of age. The values of transmalleolar angles were analyzed for each age group divided by 6 months. Quadratic and linear regression models were used to fit patterns of changes in mean values of transmalleolar angles. The age at seven, which provides the highest coefficient of determination for quadratic regression analysis, was used as a cut-off point to fit different statistical models. Results : The mean transmalleolar angle was $0.10{\pm}5.79^{\circ}$ in all children,$ 0.90{\pm}5.49^{\circ}$ in males, and $-0.80{\pm}5.97^{\circ}$ in females. The value was $4.25{\pm}4.04$ in 1 year of age, gradually decreased to the lowest level of $-1.98^{\circ}$ in four years and seven months of age, increased again with age until it reached $0.67{\pm}1.10^{\circ}$ at seven years of age, and stayed at that level thereafter. Conclusion : Internal tibial torsion in infancy is known to correct spontaneously in the normal developing process. But in this study, the mean transmalleolar angle in children of Jeju area annually decreased after one year of age; to the lowest angle at four years and seven months of age; increased again gradually to the age of seven; and persisted in that level, about $10^{\circ}$ less than western children, not correcting further thereafter. These findings suggest tibial torsion might be caused by lifestyle, especially sitting on feet. To prevent abnormalities of joints and gaits, early diagnosis of tibial torsion in childhood and posture correction or early treatment when needed, seems to be necessary.

• Korean Journal of Soil Science and Fertilizer
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• v.42 no.5
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• pp.364-370
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• 2009

This study was conducted to survey, analyze on the compaction layer and the plow layer at Jeonbug and Jisan series paddy soil, which is the representative soil in fluvio-marine and local alluvium, respectively. The depths of surface soil were 12.6 and 12.7 cm in Jeonbug and Jisan series, respectively. A plowing depth was 10.5 cm. The properties of compaction layer in two soil series were as follows. The hardness were $14.7kg\;cm^{-2}(25.3mm)$ and $8.7kg\;cm^{-2}(22.1mm)$ in Jeonbug and Jisan series, respectively. The thickness were 22.3 cm and 17.8 cm in Jeonbug and Jisan series, respectively. The depth of soil compaction, which means depth from surface, were 15 and 20 cm in Jeonbug and Jisan series, respectively. The relationship between the hardness of compaction layer and the depth of surface soil showed negative correlation, however relationship between the hardness and the thickness of compaction layer showed positive correlation. Soil temperature was lower in compaction layer than in plow layer. This temperature differences between compaction layer and plow layer were from 1.0 to $2.5^{\circ}C$ in Jeonbug series and from 0.7 to 2.1 in Jisan series. The soil physical properties of compaction layer were higher in bulk density and solid phase and lower in porosity and gaseous phase than those of plow layer in all soil series. The soil chemical properties of compaction layer were higher in pH, content of available silicate, exchangeable calcium and magnesium but lower in total nitrogen, content of organic matter and available phosphate than those of plow layer in all soil series. Cation exchangeable capacity and content of exchangeable potassium were similar between compaction layer and plow layer in Jeonbug series, however, in Jisan series these were lower in compaction layer than in plow layer. Elution amount of inorganic nitrogen were lower in compaction layer than in plow layer in all soil series. The content of soluble Fe and Mn were plenty in compaction layer compared with plow layer and these tendency was apparent in Jeonbug series. The water depth decrease were fast until the latter part of June, and were slow as $1{\sim}3mm\;day^{-1}$ for July and August, and were fast again from september. Rice roots distributions as each soil series and tillage method were 25 cm at rotary plowing in Jeonbug series, 30 cm at deep plowing in Jeonbug series, and 20 cm at tillage in Jisan series. Dry weight per m2 at heading stage were much in order of deep plowing in Jeonbug series, rotary plowing in Jeonbug series, and tillage in Jisan series.

• Journal of Korea Fair Competition Federation
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• no.30
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• pp.25-29
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• 1998

기업의 구조조정을 통한 국가경쟁력 향상을 위하여 최근 결합재무제표의 도입, 지배구조의 선진화, 외국인에 대한 적대적 M&A 허용 등이 진행됨에 따라 출자총액제한제도를 폐지하고 계열회사간의 채무보증을 조기에 해소하기 위해 신규채무보증을 금지하고 기존 채무보증은 2000년 3월말까지 완전해소토록 하는 내용을 주요 골자로 하는 공정거래법 제6차 개정안이 지난 1998년 2월 15일 제188회 임시국회에서 통과됐다. 이번에 개정된 공정거래법은 공시한 날부터 시행되는 출자총액의 제한 부분을 제외하고는 1998년 4월 1일부터 시행된다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.06a
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• pp.21-23
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• 2012

최근 서해안을 통과한 태풍 곤파스(2010년), 무이파(2011년)의 영향에 따라 피해가 발생한 바 있다. 본 연구를 통해 우리나라에 내습하는 태풍 중 서해안으로 통과하는 진로의 태풍 특성을 파악하고, 해당 태풍에 따른 피해 발생 양상을 고찰하고자 한다.

• Bulletin of the Korean Space Science Society
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• 2004.04a
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• pp.64-64
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• 2004

국가지정연구실 사업인 “인공위성 및 지구접근천체 감시연구(NEOPAT)”에서는 한국천문 연구원에서 개발한 인공위성 궤도 예보 프로그램인 KODAS(KAO Orbit Determination & Data Analysis System)를 이용하여 한반도 상공을 통과하는 인공위성에 대한 우주 감시네트워크에 대한 시뮬레이션 연구를 실시하였다. 인공위성의 궤도 정보는 미국 NORAD에서 발표하는 TLE(Two Line Elements)의 1007개 위성 자료를 이용하였다. (중략)

• 월간 기계설비
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• s.248
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• pp.32-39
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• 2011

대한설비건설협회는 지난 2월 25일 설비건설회관 대회의실에서 제44회 정기총회를 개최하고 2011회계년도 사업계획을 수립했다. 2011년 사업추진의 기본방향은 기계설비시공 관리기준법의 국회통과 결집, 법 통과 후의 하위법령 및 세부기준 제정, 회원사의 적정공사비 확보를 위한 주계약자형 공동도급 활성화 및 직할시공제, 설비공사 분리발주 확대 등 설비건설업계 도급영역 확대, 회원사 경영환경 개선을 위한 불공정하도급거래 개선, 설비기자재가격 현실화 등 관련 제도개선 사업 등에 역점을 두고 있다.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.26 no.4B
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• pp.400-405
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• 2001

본 논문에서는 Local Oscillator(LO)의 누설신호 제거를 위해 혼합기의 특성을 이용하여 광대역의 특성을 가지고 RF 채널에 근접한 누설신호를 제거할수 있는 구조를 제안하였다. 제안된 구조는 Half-LO 주파수를 이용하는 방버븡로 LO 누설신호를 일반적인 다른 경우보다 RF 신호대역에서 멀리 떨어진 대역으로 분리시킴으로서 대역 통과여파기로서 쉽게 제거하였다. 상향변환기로서 필요한 저역통과여파기, 대역통과여파기, 그리고 증폭기를 설계하였고 혼합기에 의한 영상성분은 혼합기의 위상을 특성을 이용하여 제거하였다.

• Proceedings of the KIEE Conference
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• 2001.07b
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• pp.810-812
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• 2001

통과형 금속 탐지기(Walk-through Metal Detector)는 공항 등의 장소에서 보안 검색용으로 널리 사용되고 있다. 기존의 1차원적인 통과형 금속 탐지기는 총기류와 다른 금속체를 구별하기가 힘들다는 문제점이 있었다. 본 논문에서는 이런 문제점을 해결하기 위해서 2차원적인 탐지가 가능한 새로운 형태의 통과형 금속 탐지기의 모델을 제시하였고, 유한요소법(FEM)을 이용해 기존 모델과 비교 검증하였다.

• Electric Engineers Magazine
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• v.242 no.10
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• pp.19-23
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• 2002

월차점검 및 정기점검 등에서 점검, 시험의 결과, 지급수리 혹은 개수를 필요로 하는 곳을 발견하였을 때는 설치자에게 그 취지를 설명하고 개수를 설정함과 함께 대행의 경우 자가용전기설비에 관한 통보서 2통을 만들어 1통은 설치자에게 제출하고 1통은 설치자의 확인을 받아 전기안전관리사 등이 보관하고 불량개소 등의 개수, 개선에 노력하고 사고의 미연방ㅈ를 도모하는 것이 전기안전관리사 등의 중대한 임무의 하나로 생각하여 시기가늦어지지 않도록 실행하여야 한다