수도권의 대규모 녹지공간이 대기오염에 미치는 영향 분석

김희재,Kim, Hee-Jae 인천대학교 도시과학연구원 2020 도시과학 Vol.9 No.2

This study aims to analyze the relations among greenbelt, air pollution 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 air pollution using a multiple-regression model. The major findings are summarized as follows. As a result of an empirical analysis of the impacts of greenbelt on air pollution, it is found that the characteristics of the city have impacts on air pollution concentration. It is found that the population and employment are the causes of increases in CO and NO2 concentrations, and the number of employees in the manufacturers has impacts on increases of O3 and SO2, while power plants have impacts on PM10, CO and NO2. Intersections have impacts on O3 and SO2, while the areas of the roads have impacts on CO and NO2. In addition, as for the spatial distribution of air pollutants, it is found that CO and NO2 concentrations are relatively higher in the center of the Seoul metropolitan area, while PM10, O3 and SO2 concentrations are relatively higher in the suburbs. It is found that air pollution concentration is low in greenbelt zone. In the greenbelt zone, PM10, CO and SO2 concentrations are low.

유입 전 정보인지가 한국생활만족과 정보발신태도에 미치는 영향 - 부산.경남 이주노동자를 중심으로 -

김희재,장익진,나금실,Kim, Hee-Jae,Chang, Ik-Chin,Na, Gum-Sil 한국비블리아학회 2009 한국비블리아학회지 Vol.20 No.1

The purpose of this study is to analyze how the satisfaction of Korea life and attitude on sending information is influenced by the information cognition rate of Korea before influx to Korea. The method used for this study was to survey migrant workers in Busan and Kyeongnam area. The results show a tendency towards a higher information cognition when the information was acquired through manpower supply agencies and media information. In addition, among the variables of information cognition, when 'socio-economical' factor was high, the satisfaction rate of Korea life tended to be higher. Also, when the 'workplace environment satisfaction' factor was high, attitude on sending information tended to be positive. Based on those results, this study presented measures for establishing information policies, such as provision of high quality information, diversification of information route which are necessary for migrant workers.

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.

정보 시스템 기술을 적용한 제설장비 운영 사례 분석

김희재,김근영,Kim, Hee-Jae,Kim, Geunyoung 한국재난정보학회 2018 한국재난정보학회 논문집 Vol.14 No.2

연구목적 : 최근 기후변화에 따라 여름철 태풍, 호우와 겨울철 대설, 한파 등의 기상재난이 증가하고 있다. 대설재난은 교통, 건물, 시설물 등에 다양한 피해를 발생시키기 때문에 신속한 대처가 필요하다. 대설재난이 도시 안전에 영향을 주고 있으나 우리나라의 대설재난 대처는 미흡하고, 정책 연구도 부족한 상황이다. 연구방법 : 본 연구는 대설재난이 발생할 때 신속한 도로 제설을 위하여 제설차량과 장비에 정보 통신 기술을 활용한 사례를 분석하고, 시사점을 도출한다. 연구결과 : 도로 제설장비에 정보통신기술이 적용된 장비를 부착하면 긴급 상황시 제설차량과 장비의 위치를 파악하여 인근지역의 도로 제설을 응원할 수 있다. 결론 : 본 연구의 사례 분석은 향후 지자체 제설장비의 효율적 이용을 위해 활용될 수 있다. Purpose: Recent climate change makes weather-related disasters such as summer storms, heavy rains, winter snowfall disasters, and extreme cold temperature increase in trend. Heavy snowfall disasters requires speedy response due to various effects to traffic flows, buildings, and infrastructure. Heavy snowfall disaster response of South Korea is insufficient, even though heavy snowfall disasters affect urban safety. There have been lack of policy studies for heavy snowfall disasters. Method: This research analyzes case studies and explores implications using Information system technologies to snow removal vehicles and equipments for speedy snow removal during the heavy snowfall disasters. Results: Information system technology attachment to snow removal equipments can identify locations of snow removal vehicles and equipments for emergency period to support snow removal of adjacent jurisdictions. Conclusion: Case studies of this research can be further used for efficient application of snow removal tools of local governments.

우리나라의 도시특성이 지식･문화･여가산업 고용에 미치는 영향 분석

김희재(Kim Hee Jae),김근영(Kim Geun young) 한국지역개발학회 2018 韓國地域開發學會誌 Vol.30 No.3

The physical-social characteristics of cities are critical factors for determining employments of knowledge, culture and leisure industries. The potential employment power of knowledge, culture and leisure industries is attracted policy-makers’ attention in the era of 4th Industrial Revolution. However, there has been lack of studies for knowledge, culture and leisure industries in terms of employment. The objective of this research is to identify the positive and/or negative association between urban physical-social characteristics and employments of knowledge, culture and leisure industries, and to measure the impact level of urban characteristics to the employments of knowledge, culture and leisure industries. This research uses the 2000~2015 census data sets of characteristics of establishment based on the si-gun-gu governments provided by the Statistics Korea for geographical and statistical analyses. Research results show that there are strong association between urban physical-social characteristics and employments of knowledge, culture and leisure industries. The Industry Agglomerations and economic power of cities significantly affects positive increase in employments of knowledge, culture and leisure industries. This research reveals the importance of economic power enhancement policies for creation of knowledge-based high-income jobs of knowledge, culture and leisure industries.

변이계수를 이용하는 이변량 정규모집단의 모수추정에 관한 비교연구

김희재(Kim, Hee-Jae),박철(Park, Cheol),원호연(Won, Ho-Yon),문영길(Moon,Yeung-gil) 한국자료분석학회 2001 Journal of the Korean Data Analysis Society Vol.3 No.3

본 연구는 이변량 정규분포를 갖는 모집단에서 변이계수(coefficient of variation)가 미지(unknown)이나 동일한 경우 이를 이용한 모수(parameter)들에 대한 최우추정량(maximum likelihood estimator)을 구하고 또한 이들 최우추정량들과 상용적인 추정량들인 표본평균, 표본상관계수 및 표본변이계수 사이의 점근적 상대효율(asymptotic relative efficiency)을 변이계수 및 상관계수의 변화에 따라 몬테칼로 방법(Monte Carlo method)으로 구하였다. This study has been carried out in the population of bivariate normal distribution with equal but unknown population coefficient of variation to infer more effectively the maximum likelihood estimator(MLE) of the parameters. The asymptotic relative efficiency(ARE) of MLE s for common estimators is calculated and tabulated in accordance with the change of the coefficient of variation and the correlation coefficient by Monte Carlo method.

4차산업 관련 주력산업의 고용 결정 요인 분석 - 대규모 기업집단을 중심으로 -

김희재(Kim, Hee-Jae),김근영(Kim, Geunyoung) 한국지역사회학회 2019 지역사회연구 Vol.27 No.2

본 연구는 4차 산업혁명 시대를 맞이하여 우리나라의 주력산업 중에서 4차 산업혁명 제조업과 관련된 정보통신기기, 디스플레이, 반도체 산업에서 중요한 역할을 수행하고 있는 대규모 기업집단에 소속된 기업들의 산업유형과 입지분포를 분석하고, 해당 산업과 관련된 대규모 기업집단의 고용이 우리나라 주력산업 고용에 미치는 영향을 분석하는 것을 목적으로 한다. 이를 위하여 다중회귀분석 기법을 적용해 전국 229개 지자체를 대상으로 지역의 산업요인과 인구요인, 지역요인이 4차 산업 관련 주력산업 고용에 미치는 영향을 분석하였다. 분석 결과를 요약하면 첫째, 주력산업 고용에 긍정적인 관계를 갖고 있는 요인은 공통적으로 각 지역의 주력산업 관련 대규모 기업집단의 고용 비율, 산업단지의 고용자 수, 제조업 고용자수 비율, 순 이동자수, 지역내 총생산, 대학 수 등인 것으로 확인되었다. 반면 고령화 비율, 소규모 기업체의 고용 비율에 비해 중규모 업체의 고용자수 비율이 높을수록 관련 산업 고용과 부정적인 관계를 갖고 있는 것으로 나타났다. 둘째, 시기별로 대규모 기업집단 고용에 의한 4차 산업관련 주력산업의 고용 결정 영향력이 다른 것으로 나타났다. 2010년에 비해 2018년에 고용 영향력이 증가한 주력산업은 정보통신기기, 디스플레이 산업으로 나타났으며, 고용 영향력이 감소한 산업은 반도체산업인 것으로 파악되었다. 셋째, 주력산업별로도 고용 결정 요인에 차이가 있는 것으로 나타났다. 반도체 산업의 경우에는 지역의 대학 수가 해당 산업 고용에 긍정적인 요인인 것으로 나타났다. The purpose of this study is to analyze types and distribution of firms belonging to major conglomerate that play an important role in the manufacturing of the fourth industrial revolution among the nation’s key industries. This study analyzes the employment impacts of major conglomerate related to such industries on the employment of the nation’s key industries. To this end, the effect of local industrial factors, population factors and local factors on employment of the fourth major industry related industries is analyzed by 229 local governments nationwide using multiple return analysis. Summing up the analysis results, firstly, factors with a positive relationship to employment in the main industry are commonly identified as the ratio of employment in large business groups related to the key industries in each region, the number of employees in the industrial park, the ratio of workers in the manufacturing industry, the net number of people in the region, the gross domestic product in the region and the number of universities. On the other hand, the higher the ratio of employees at mid-sized companies compared to the aging rate and the employment rate at small businesses, the more negative the relationship with related industrial employment. Second, the effects of employment decisions for the fourth industry-related key industries by large-scale employment of different time periods varies. The key industries with increased employment influence in 2018 compared to that of 2010 are the information and communication equipment and display industries, while those with reduced employment influence were the semiconductor industries. Third, employment decision factors are different for each key industry. For the semiconductor industry, the number of universities in the region is a positive factor for employment in the industry.

인터넷 주활동 분석을 통한 사용자의 인터넷 중독진단에 관한 연구

김희재(Hee-Jae Kim),김종완(Jongwan Kim) 한국산업정보학회 2011 한국산업정보학회논문지 Vol.16 No.3

전 국민의 인터넷 이용율 향상과 유비쿼터스 기술의 확산으로 인터넷 중독은 심각한 사회문제가 되고 있다. 하지만, 한국형 성인 인터넷 중독 자가진단 척도인 K-척도는 사용자의 특성을 구분하지 않는 일반적인 진단법이다. 본 연구에서는 사용자의 직무 연관 또는 직무와 무관하게 웹사이트에 접속하는 기본적인 인터넷 이용 패턴을 취득하는 설문조사를 통하여 사용자의 직무 무관한 인터넷 활동을 기반으로 인터넷 중독을 진단하는 새로운 방법을 제안하고자 한다. 솔직하게 인터넷 중독 문항에 표시하는 것을 꺼리는 인터넷 이용자에게 기본적인 인터넷 이용 패턴만 요구하여 K-척도에서 발견되지 않는 숨겨진 인터넷 중독자를 찾을 수 있음을 SPSS 통계 분석 도구로 제시한다. Due to people"s internet use growth and proliferation of ubiquitous technology, the internet addiction is becoming a social issue. However, the current adults" self-diagnosis measure about internet addiction, the K-scale, is a normal diagnostic method, which it does not consider user characteristics. In this research, we will propose a new internet addiction diagnostic method based on users" non-duty internet activities by using some questionnaire items to collect users" basic internet patterns used on duty related or non-duty related web sites. Since we simply ask for the basic internet usage pattern to each user who does not like to check frankly questionnaire items in the K-scale, the proposed method can find some hidden internet addicts compared to the K-scale with the SPSS statistical analysis tool.

한국과 일본 대학생의 국민정체성과 다문화태도

김희재(Kim, Hee-Jae),김현숙(Kim, Hyun-Suk) 동북아시아문화학회 2012 동북아 문화연구 Vol.1 No.33

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.

부산ㆍ규슈 초광역 생활문화권형성을 위한 전략

김희재(Kim Hee-Jae),윤영준(Yun Young-Jun) 동북아시아문화학회 2008 동북아 문화연구 Vol.1 No.17

Many scholars indicates borderless globalization, the age of openness, role increase of local instead of nation as topic of the future. Globalization of world economy bring about free migration beyond capitalist enterprise and convert to the direct competition system of the locals instead of faded meaning of the nation. In this paper, we analyzed the meaning and limitation of the super wide range economy areas that is a strategy to overcome the long-term economic stagnation of Busan. Farther the super wide range economy areas, we assert the necessity of the construction of the super wide range life-culture areas in the time frame of wide range and to achieve this, we considered the diverse strategy. The diverse strategy to construct the super wide range life-culture areas follows. First, to be able to the central role in the East-south area, Busan must develop the close cooperation with other regions and role adjustment, distributive and autonomous model. Second, intensively foster industry fit with the region's characteristics. Third, for formation of industries that can product a higher value-added business, Busan must confirm the creative talent pool. Forth, the continuous and deep concerns about the super wide range life-cultural areas. Fifth, the plan of socio-cultural exchange program persue between Busan and Kyushu by stages. Sixth, Busan need the convergence of diverse opinion from the local resident and the establishment of receptiveness about other culture.