미국동포의 귀환이민 의향에 미치는 영향 요인 연구

조형재,김주경 한국공공관리학회 2024 한국공공관리학보 Vol.38 No.2

본 연구는 해외로 나가는 우리나라의 일방적 이주 흐름이 1990년대 초부터 양방향의 유출입 흐름으로 바뀌며 귀환 재외동포가 늘기 시작하는데도 이에 대한 체계적인 정책이 없다는 문제의식에서 시작했다. 이에 따라 모국에 대한 영향력이 가장 큼에도 불구하고 제대로 인식하지 못하고 있는 미국 동포사회의 모국 귀환이민 의향에 대해 살펴보았다. 이를 위해 미국 전역의 동포를 대상으로 설문조사를 실시했다. 귀환 의향에 미치는 영향은 이론적 고찰을 통해 도출한 경제적 요인, 사회적 관계망 요인, 사회・문화적요인, 정책적 요인과 하위요인을 통해 측정했고, 분석에는 다중회귀분석 방법을 사용했다. 그 결과 미국동포의 사회적 관계망, 사회・문화적 요인의 거주국 부적응 요인과 정책적 요인의 복수국적 인식 요인이 귀환의향에 정(+)의 영향을 미치는 것으로 나타났다. 또한 미국동포는 모국의 발전을 긍정적으로 인식하고 있음에도 불구하고 고물가, 치열한 경쟁 등 부정적 요인으로 인해 귀환을 주저하는 것으로 분석됐다. 이는 한국이 통합적 귀환동포정책 수립과 인구문제의 부분적 해결 등을 위해 미국동포를 비롯한 재외동포의 과감한 수용을 포함한 효능감 있는 재외동포정책 수립을 검토할 필요성이 높아졌음을 시사한다. 이에 따라 체감되는 동포정책 수립, 한글 및 역사문화 교육의 지속적 확대, 재외동포 청소년교류사업의 파격적 확대, 글로벌한민족경제네트워크 활성화, 미국동포 귀환 정착 프로그램의 시행을 검토해 볼 것을 제언한다. This study began with the awareness of the problem that Korea's one-way migration flow overseas changed to a two-way inflow and outflow from the early 1990s, and that there was no systematic policy to deal with the growing number of returning overseas Koreans. Accordingly, the research was conducted to look into the inclination of Korean Americans to return to the Republic of Korea, which is not properly recognized despite having the greatest influence on their motherland. To this end, a survey was conducted among Korean Americans across the United States. The impact on the inclination to return to homeland was measured through economic factors, social network factors, sociocultural factors, policy factors and sub-factors derived from theoretical review of preceding research. And multiple regression analysis was adapted for hypothesis testing. As a result, it was found that Korean Americans' social network, sociocultural factors of maladjustment to the country of residence, and policy factors of dual-citizenship awareness had a positive influence on the inclination to return. In addition, despite having a positive perception of the development of home country, Korean Americans were found to be hesitant to return due to negative factors such as high prices and fierce competition. This suggests that there has been an increased need for Korea to establish an effective overseas Koreans policy that boldly accepts overseas Koreans, including Korean Americans. Because the response of that need will help to establish an integrated policy for returning overseas Koreans and partially solve the population dilemma.

PVA / Chitosan 블랜드필름의 효소와 pH 변화에 따른 분해효과

조형재,김종완,황성규,이기창,정덕채 ( Hyung Jae Cho,Jong Woan Kim,Sung Kwy Hwang,Ki Chang Lee,Duck Chae Jung ) 한국유화학회 1998 한국응용과학기술학회지 Vol.15 No.3

Polyvinyl alchol[PVA] is useful for the production of water-soluble packaging, paper, textile sizes. PVA and Chitosan are known as biodegradable polymers. PVA/chitosan blend films were prepared by solution blends method in the weight ratio of chitosan for the purpose of useful biodegradable films. Thermal and mechanical properties of PVA/chitosan blend films such as DSC, impact strength, tensile strength and morphology by SEM were determined. As a result. The ratio of 10.0wt% PVA/chitosan blend films were similar to PVA. Blend films were completely degraded pH 4.0 better than 7.0, 10.0 in the buffer solution. Also, Blend films were rapidly degraded enzyme(β-glucosidase) solution better than pH solution by Enzymolysis.

중국동포의 대이주 현황과 바람직한 지원 방안

조형재 재외한인학회 2015 在外韓人硏究 Vol.36 No.-

에너지원별 정책리터러시가 에너지 수용성에 미치는 영향요인에 관한 연구: 화력, 신재생에너지 비교를 중심으로

조형재,김주경 한국비교정부학회 2022 한국비교정부학보 Vol.26 No.2

(Purpose) This study empirically analyzed the factors of policy literacy affecting the acceptance of two energy sources. One is renewable energy, which has recently been spotlighted as an eco-friendly energy, and the other is thermal energy, which has been criticized for its carbon emission. (Design/methodology/approach) This is because it makes us derive factors that negatively or positively affect energy acceptance by comparatively analyzing the factors of acceptance of renewable energy which is to be considered eco-friendly energy and those of acceptance of thermal energy which is not eco-friendly. For the empirical analysis of this study, a nationwide survey was conducted targeting 19-year-old men and women, and 790 questionnaires were used for the analysis. (Findings) As a result, in the case of thermal energy, functional literacy had a positive effect on acceptance, whereas critical literacy had a negative effect. Also, it was analyzed that public participation which is used as a parameter, did not affect energy acceptance. In the case of renewable energy, traditional literacy was found to have a positive effect on acceptance. Public participation did not affect acceptance, as it did not do in the case of thermal power generation. In both energy sources, literacy had a positive effect on public participation. (Research implications or Originality) So, It is needed that the government provide various information about renewable energy to the public. It is because that it will make the public get the transparent information and correct understanding of energy.

Chitin으로부터 다양한 Chitosan의 제조와 특성

조형재,황성규,이기창,이한섭,김판기 한국식품위생안전성학회 1998 한국식품위생안전성학회지 Vol.13 No.1

수산계 폐기물로부터 chitin 유도체의 다양한 응용에도 불구하고 chitin의 상업적 이용은 적절한 용매의 부재와 화학적 저항성으로 인하여 제한적으로 이용되었다. 그러므로 Mima의 방법을 응요하여 NaOH 농도, 반응시간, 온도 등을 조절하여 탈아세틸화반응에 의한 다양한 점도가 다른 chitosan을 제조하였으며, 2종의 가교제를 이용하여 가교결합에 의한 결정성을 증가시킨 가교 chitosan을 제조하였다. 제조한 점도가 다른 chitosan과 가교 chitosan유도체를 다양한 분석기기를 이용하여 측정하였다. chitosan을 제조시 반응시간을 높이거나 반응온도를 높이면 탈아세틸화는 높아지나 분자사슬의 크기, 즉 점도와 분자량은 감소하였다. 반응온도, 반응시간과 알칼리농도에 따라 활용분야에 맞는 chitosan을 제조할 수 있다. Chitin is known as biodegradable natural polymer. But, in spite of various application of chitin from waste marine sources, commercial use of chitin has been limited due to highly resistance to chemicals and the absense of proper solvents. herefore, we studied that another viscosity chitosan were prepared from chitin which were deacetylated under various concentration of NaOH solution, reaction time and temperature by the application of Mima's method. The major parameters for these manufacturing methods were found to be concentration of alkali solution, reaction time and temperature etc. Besides, we studied that various chitosan derivatives were prepared from chitin by crosslinkage with epichlorohydrin and 1, 3-dichloro-propanol. The effects of these parameters on another viscosity (molecular weight) chitosan and crosslinked chitosan dervatives were investigated by various analysis apparatus. SEM analysis showed that both chitin and chitosan had a particle shaped morphology and another molecular weight chitosan according to the particle size was much smaller than that of chitin.

오존층 파괴 물질인 TCE, CFC의 탄화수소계 대체세정제를 이용한 스크린인쇄 세정

이기창,정덕채,김종완,조형재 明知大學校 産業技術硏究所 1999 産業技術硏究所論文集 Vol.18 No.-

Alternatives cleanser to 1,1,1-TCE & CFC-113 used as cleanser for industrial parts are developed because the cleanser is scheduled to phaseout after 1996. Also, Existing cleaner using screen printing are the organic solvents including aromatic compounds carried with poisonous and stench. Besides, cleaning method of current screen printing are for the most part mixed cleaning method of dipping and polish using duster. Accordingly, It had a bad effect to the working environment and the worker body. Therefore, Using alternative hydrocarbon cleanser to 1,1,1-TCE & CFC-113 used as cleanser for industrial parts be substituted for existing cleanser against screen printing ink measured the cleaning efficiency according to gravimetric analysis method and property change of gossamer according to Image Analyzer. Also, Cleaning process system carry with excellent cleaning efficiency studied which was proposed new cleaning process including ultrasonic and vibration cleaning process be substituted for existing.

PVA 와 Algin 의 블렌딩에 따른 특성과 토양분해

조형재(Hyung Jae Cho),오세영(Se Young Oh),이기창(Ki Chang Lee),정덕채(Duck Chea Jung),김용렬(Yong Yeul Kim),황성희(Seong Hee Hwang) 한국유화학회 1999 한국응용과학기술학회지 Vol.16 No.1

N/A Algin is known as biodegradable natural polymer from marine plants. PVA/Algin blend films were prepared by solution blending method for the purpose of useful biodegradable polymer. Characteristics properties of PVA/Algin blend films such as DSC, Elongation, Tensile strength and Morphological change by SEM were ratio of Algin. PVA/Algin blend films were found that phase separation was occured as more than 25wt% increasing the blend ratio of Algin. Blend films were observed to be less partially compatibility than 10wt% increasing the blend ratio of Algin by DSC, mechanical properties and SEM. Also, PVA/Algin blend films at the laboratory soil test(Pot Test) were completely degraded in months with four kinds of soils by microorganisms.

TCP 과잉밀집 제어 및 회피에서 빠른 재전송 알고리즘 개선방안

조형재(H. J. Cho),양대헌(D. H. Nyang),송주석(J. S. Song) 한국정보과학회 1998 한국정보과학회 학술발표논문집 Vol.25 No.2Ⅲ

전송 프로토콜은 응용 프로그램과 네트워크의 인터페이스로서, 응용 프로그램에서 요구한 QoS(Quality of Service)를 제공하는 역할을 한다. 이 중 TCP는 인터넷의 전송 흐름 제어를 위해서 사용되는 프로토콜이다. TCP의 흐름 제어를 위해서 수신된 데이터의 ACK(acknowledgement)에 따라 허가된 윈도크기만큼의 데이터를 보내는 크레디트 할당 기법을 사용한다. 따라서 네트워크의 과잉밀집 제어를 위해서 과잉밀집 윈도(congestion window)를 사용한 slow-start 알고리즘을 사용하며, 손실된 데이터를 재전송하기 위한 방법으로 빠른 재전송 및 회복 알고리즘을 사용한다. 본 논문에서는 빠른 재전송 알고리즘에서 나타나는 문제점을 알아보고, 이 알고리즘이 빠른 시간에 데이터 손실을 회복하고 데이터를 보낼 수 있도록 수정한 알고리즘을 소개한다. 또한 수정된 알고리즘을 확장하여 네트워크의 상태에 따라 더 많은 데이터를 보낼 수 있도록 개선한 알고리즘을 제안한다.

제주투자진흥지구 운영 개선방안 연구

조형재(Hyung-Jae Jo),양덕순(Duk-Soon Yang) 제주학회 2022 濟州島硏究 Vol.58 No.-

본고는 제주도 개발의 주요 수단인 제주투자진흥지구의 현황과 문제점에 대한 실무 관리적 측면에서의 분석과 개선방안을 살펴보기 위한 연구이다. 제주투자진흥지구는 2002년 도입 후 파격적인 세제 및 부담금 감면 등의 지원에 힘입어 20년 동안 7조 6 천억 원의 투자유치에 성공했다는 평가와 함께 세제 혜택 악용과 지대차익을 겨냥한 투자방식 등의 문제점도 많이 노출했다. 과거의 연구는 이러한 문제점을 방지하기 위한 큰 틀의 제도 개선에 역점을 두었다. 본 연구는 투자진흥지구에 대한 지역별, 투자 금액별, 업종별 현황과 지정이 해제된 사업장들의 유형을 구체적으로 분석하여 실무 관리적 측면에서 개선방안을 모색했다. 연구방법은 지자체 자료, 선행 연구논문 등 문헌자료와 언론자료를 통한 문헌연구 방식을 사용했다. 연구 결과 서부에 투자가 많아 향후 동부에 더 많은 투자를 유도할 필요가 있고, 종합휴양업 등 초대형 사업장의 지구 지정해제율이 높게 나타나 정밀 관리를 통해 개선할 필요가 있다. 또한 종합휴양업 종이 많이 포함된 매각차익형에 지구 해제 및 악용사례가 많아 집중 관리를 통해 방지할 필요성이 있다. This study aims to analyze the current situation and problems of the Jeju Investment Promotion District, which is the main means of Jeju Island development, and to seek for improvement plans for them in point of practical management. Since its introduction in 2002, the Jeju Investment Promotion District has been evaluated to have succeeded in attracting 7.6 trillion won in investment over 20 years, thanks to support such as unprecedented taxation. And it also exposed many problems such as abuse of tax benefits and land arbitrages. Past studies have mainly focused on improving the framework of the system to prevent these problems. This study looked for improvement plans by analyzing the current status of each region, investment amount, and industry in the investment promotion district and the types of business sectors of which designation has been lifted. Literature research method using literature data as that of local government, previous research papers and media contents was used. As a result of the study, there is relatively more investment in the west than the east, so it is necessary to induce more investment in the east in the future. The cancellation rate of designation of mega business sectors such as comprehensive recreation business was high, so it was necessary to reduce it through much more intensive management. In addition, there were many cases of Investment District Cancellation and land arbitrages, which included many comprehensive recreation business sectors. So it was necessary to prevent it through elaborate management.

PVA/Algin 블랜드필름의 효소와 pH변화에 따른 분해

김종완,조형재,이기창,유재홍,양율희,이나래,석지현,김판기 한국보건교육건강증진학회 1998 한국보건교육·건강증진학회 학술대회 발표논문집 Vol.- No.-