A1 7039合金의 피로 특성에 미치는 열처리의 영향

金熹載,李興周 陸軍士官學校 1984 한국군사학논집 Vol.26 No.-

Effect of heat treatment on the high cycle fatigue behavior of high strength aluminum alloy 7039 was examined by microcopy, mechanical and fatigue test. The elongated plateshaped grain by the effect of hot rolling and oxide or coarse super hardened particles, Cr compound(CrAl_7)were observed on the optical microscopy. The density of coarse inherent, θ phase(MgZn_2) was decreased as the time of artificial aging was increased. S1 specimen developed by holding at 480C for 2 hours, holding at room temperature for 72 hours and then aging at 120C for 24 hours was showed the most ex-cellent fatigue limit.

수도권 그린벨트가 지표면 온도에 미치는 영향 분석

김희재,Kim, Hee-Jae 인천대학교 도시과학연구원 2020 도시과학 Vol.9 No.1

This study aims to analyze the relations among greenbelt, urban land surface temperature empirically in order to assess the environmental effects of the greenbelt in the Seoul metropolitan area, objectively. For this purpose, this study conducts an empirical analysis of impacts of greenbelt on urban land surface temperature using a multiple-regression model. The main data employed in the analysis include real-time air pollution data, Landsat 8-OLI Landsat imagery data, KLIS data and Jip-gye-gu data. The major findings are summarized as follows. NDVI has a negative (-) correlation with the land surface temperature, and the urban temperature is high in areas with poor vegetation. The land surface temperature is low in residential or commercial areas, while the temperature is high in industrial areas. The temperature is low in green fields, open spaces, and river areas. it is found that the urban land surface temperature is low in the greenbelt zone. In the greenbelt zone, there is an effect that reduces the land surface temperature by 1% on average, as compared to that at the center of the Seoul metropolitan area. Especially, the center of the Seoul metropolitan area, in a range from 0.6% to 1.9% of the average temperature, the temperature gets lower up to approximately 3km from the greenbelt boundary.

베트남전의 선전분석

김희재 경북대학교 사회과학대학 신문방송학회 1996 言論과 社會 Vol.- No.9

"마그네트론 스러터링법에 의한 증착된 TiN, TiCN 및 TiN/TiCN 박막의 조직과 재료특성 연구"

김희재,정강국 陸軍士官學校 1999 한국군사학논집 Vol.55 No.-

To obtain appropriate experimental conditions for superior protective films with high hardness and good resistance to wear and corrosion two single layer films of TiN and TiCN and a multi-layer film of TiN/TiCN were deposited onto SCM-4 steel surface which is widely used for mechanical structural materials, by use of magnetron sputtering method. The microstructure, the variation in chemical composition, the microhardness, the adhesion and the resistance to wear and corrosion of these films were analyzed. In this study the thin film of Ti_xN_1-x increases its hardness and corrosion resistance as the concentration ratio of N in the film increases. Ti_2N compound was formed at 450℃ with low deposition pressure of 0.67Pa. In this case, its hardness and adhesion were proved to be excellent despite of the decrease of the concentration ratio of N in the compound. In case of the TiC_0.5N_l-x thin film, we obtained the best hardness, adhesion and wear resistance when the stoichiometric ratio of C to N is 1:1(the resulting compound is TiCo_0.5N_0.5). The multi-layer of TiN/TiCN thin film had better hardness and wear resistance than the single layer film of TiN or TiCN while the compound of TiCo_05N_0.5 had the best corrosion resistance.

산복도로의 어제와 오늘

김희재,신지은,이동일,정현일,최원석 부산연구원 2019 연구보고서 부산학연구 Vol.2019 No.0

직업별 취업자의 직장만족도에 관한 연구

김희재,양이문 한국자료분석학회 2008 Journal of the Korean Data Analysis Society Vol.10 No.2

본 연구는 청년패널조사(2006)의 자료를 활용하여 직업별 취업자의 직장만족도에 관한 요인을 분석하였다. 직장만족도에 사용된 변수는 임금, 고용안정성, 하는 일, 근무환경, 근무시간, 발전가능성, 인간관계, 인사고가, 복지후생의 9개가 사용되었고, 직업분류는 2007년 7월에 발표된 통계청 직업분류군 9개를 관리 및 전문직, 사무종사직, 판매 및 서비스직, 장치 및 기계조작 및 조립직, 단순노무직으로 재분류하여 5개의 범주를 사용했다. 직장만족도를 구성하는 9개의 변수를 요인분석 한 결과 안정 및 보상요인, 자아실현 및 소통요인, 근로조건요인으로 추출되었는데 이를 직업별로 살펴보면, 관리 및 전문직, 단순노무직은 근로조건요인이, 나머지 직업군에서는 안정 및 보상요인이 직장만족도에 가장 영향을 주는 것으로 나타났다. 연구의 결과를 토대로 직업별로 개별화된 제도적 지원의 필요성이 제기되며, 차후의 시계열적 직장만족도 연구가 요구된다. This study was analyzed factors about the employed person's job satisfaction in accordance with job classification using data of the Youth Panel Survey. Nine Variable are used in job satisfaction as like payment, job stability, contents of work, work environment, development possibility, human relationships, personnel affairs, benefits. The job classification applied five job categories which were announced in the National Statistical Office; it is professional work, office work, salesmanship and service work, equipment and machine assembling work, simple labor work. In management and professional, simple labor work, work condition was revealed that it affect more positive in job satisfaction. On the other hand, office work, salesmanship and service work, equipment and machine assembling work's facts of job satisfaction is stability & compensation. On the result of the study, it is proposed the necessity of individual and institutional supports on the work place classification. At the same time, it needs time-series study from now on.

주5일 근무제와 취업자 생활변화

김희재 한국자료분석학회 2008 Journal of the Korean Data Analysis Society Vol.10 No.1

The imposition of a five-day workweek system is changing people's everyday life in terms of diminishing labour times which improves employees' leisure times. This study examines varied changes of work-life on a work responsibility and work load after an introduction of a five-day only work week. Furthermore, we study various influences of leisure times, hobby activity, family lifestyle, social activity, and self-improvement on the imposition of the legislation. We try to find out different changes of people's life-style between work fields and the imposition and deposition of the act. In the result of this study, we find both affirmative influences not only from groups under a five-day workweek system, but also from the other groups under the deposition of the act. This is because this new system influences on all work forces.A five-day only work week influences expecially on changes and improvements of working responsibility. 주5일 근무제의 도입은 단순히 노동시간의 절대적 감소와 자유시간 특히 여가시간의 증대라는 시간양의 증감 차원에 그치지 않고, 일상생활 전반에 걸친 변화를 가져오고 있다. 본 연구는 취업자를 중심으로 직업별 취업자들의 주5일 근무제 이후 업무능률, 업무부담 등 직장생활에서의 변화가 어떠한가를 살펴본다. 주5일 근무제 시행 이후 변화된 생활에 어떤 활동들이 영향을 주었는지를 주5일 근무제 시행여부 및 취업자 직업별 비교를 통해 그 차이를 밝히고자 했다. 본 연구의 결과, 주5일 근무제 시행이 그렇지 못한 미실시, 비해당 집단에까지 긍정적 영향을 미치고 있는 것으로 나타났다. 특히 주5일 근무제는 업무능률 변화 및 향상에 긍정적 영향을 보였다. 각 직업집단별로 생활만족도 영향을 주는 변수가 유의미하게 차이를 보이고 있는데, 생활 만족도를 긍정적인 방향으로 높이기 위해서는 집단별로 세분화된 접근이 보다 필요하며, 특히 기능 및 기계조립직은 노동부문에서는 업무능률변화, 만족도 변화에서는 여가생활만족만이 영향을 주는 것으로 나타나고 있어, 다른 직업군에 비해 세밀한 지원과 개선이 요구된다.

한국의 세대론과 세대문화코드

김희재 한국사회학회 2004 한국사회학회 사회학대회 논문집 Vol.- No.-

한류3.0 시대 속 궁중문화를 활용한 축제에 관하여 : 제 2회 궁중문화축전을 중심으로

김희재,최희수 글로벌문화콘텐츠학회 2016 글로벌문화콘텐츠학회 학술대회 Vol.2016 No.1

2016년 2번째 생일을 맞이한 궁중문화축전은 시민 200여명이 참여한 “1750시간여행 그날”이라는 참여형 프로그램과 화려한 볼거리를 선사한 “1892 왕의잔치”이라는 재현 프로그램 이 외에도 전시, 공연 프로그램등 다양하게 진행되었다. 이러한 궁중문화축전은 궁중문화를 활용한 축제로 자리매김하려고 한다. 일반적으로 축제는 글로벌 브랜드화를 목표로 하며, 궁중문화축전은 화려함으로 내국인과 외국인의 시선을 끌었고 소비자가 반응하는 자극적인 콘텐츠를 화려함으로 보여주었다. 하지만 궁중문화에서 화려함을 고집한다면 일시적으로 글로벌축제 브랜드로 자리 잡을 수 있을지도 모른다. 하지만 지속가능성이 의심되며, 콘텐츠의 고갈이라는 문제점이 발생할 수 있다. 이러한 문제점을 해결하기 위하여 다양한 콘텐츠가 필요하며, 초기 방향설정을 위하여 한류3.0 이라는 시대적 특징을 중심으로 기술하였다.

한국과 일본 대학생의 국민정체성과 다문화태도

김희재,김현숙 동북아시아문화학회 2012 동북아 문화연구 Vol.1 No.33

<P>&nbsp;&nbsp;This paper explores the national identity and the attitudes towards immigrants among Korean and Japanese university students(below, KUS, JUS). In order to this research, we used cross-national comparable data from Korea and Japan researched at the institute for social Science Research in PNU. and analyzed by factor analysis, t-test. The results are as follows. First, the national identity was examined by national attachment, national pride, qualification of nation. In the national attachment and the national pride, JUS was generally higher than KUS. And the qualification of nation of KUS divided by two factors, that is, civic and ethnic factor, whereas that of JUS had not divide. But there seemed that KUS had strong civic identity and JUS had strong ethnic identity. Second, the attitudes towards immigrants was examined by social distance, attitudes about multicultural society, perceived threat. In the social distance, KUS were generally similar JUS, but JUS were more acceptable than KUS for international marriage. In the attitudes about multicultural society, KUS were very similar JUS, but KUS recognized positively and JUS recognized negatively. In the perceived threat, KUS concerned than JUS about taking jobs away from immigrants, damage of lineage and culture, and JUS concerned than KUS about increase of social problems related immigrants. In the attitudes of multicultural policy, KUS were more higher than JUS to support foreign school, wheres JUS were higher than KUS to qualify foreigners as voter.</P>