영월층군 마차리층에서 산출된 후기 캄브리아기 삼엽충 Pseudagnostus josepha Hall, 1863의 개체발생과정과 형태적 변화 추적

정직한,최덕근 한국고생물학회 2007 정기총회 및 학술발표회 Vol.2007 No.-

순수전기차 경험 고객의 우려 요인에 따른 전기차 구매 의사 영향

정직한,Jeong, Jikhan 한국디지털정책학회 2021 디지털융복합연구 Vol.19 No.6

국내 순수전기차 시장은 초기 시장형성 단계이므로 보급확대를 위해서는 고객의 순수전기차에 대한 인식과 구매 의사에 관한 연구가 필요하다. 본 논문은 고객세분화를 위한 이론적 프레임을 전기차 사용 경험 전후에 고객의 전기차 구매 의사를 기반으로 도출하였다. 특히 순수전기차 사용 경험이 있는 서울 및 제주지역 응답자만을 대상으로 한 설문조사를 통해 고객의 구매 의사와 우려 요인들을 실증분석하였다. 로지스틱 회귀모델의 분석 결과, 경험 고객이 차내 냉난방기기에 대한 우려가 클수록 고객의 구매 의사는 감소하고, 고객의 전기차의 일일 주행거리가 길수록 구매 의사는 증가한다. 또한 순차형 프로빗 모델의 분석 결과, 경험 고객의 전기차의 주행거리, 사고 시 A/S, 경사로 주행에 대한 우려가 클수록 고객이 냉난방기기에 대해 우려가 증가했다. 본 논문은 정책입안자 및 기업에게 전기차 관련 고객세분화, 연구개발, 마케팅 전략, 지원정책 수립과 관련하여 시사점을 제공할 수 있다. Research on consumers' perception and willingness to purchase Battery Electric Vehicles (BEVs) is necessary to simulate BEVs' deployment in South Korea because South Korea's BEVs market is still in the early stage. This paper derives a theoretical framework for consumer segmentation based on consumers' willingness to purchase before and after BEV usage experience. In particular, this study empirically evaluates consumers' willingness to purchase and concerns using the survey data from BEVs users in either Seoul or the Jeju region. The empirical results from logit models show that experienced consumers' concerns about the heater and air conditioning (HAC) in BEVs decreased the consumers' willingness to buy, while greater daily driving distances increased the consumers' willingness to buy. In addition, the empirical findings from ordered probit models show that experienced consumers' concerns about the short driving distance, the availability of maintenance service (i.e., A/S service) during unexpected events, and the difficulties of driving BEVs up-hill increased the degree of concern about HAC. This paper will provide insights related to consumer segmentation, R&D, marketing strategies, and policy design for policymakers and firms.

빅데이터 기반 신 수요관리 서비스 사업모델

정직한,이상호 대한전기학회 2014 대한전기학회 학술대회 논문집 Vol.2014 No.10

인공지능과 빅데이터가 시장진입 기업에 미치는 영향관계 분석, 게임이론 적용을 중심으로

정직한,Jeong, Jikhan 한국디지털정책학회 2021 디지털융복합연구 Vol.19 No.7

인공지능과 빅데이터의 기술혁신에도 인공지능과 빅데이터가 시장경쟁 영향에 대한 이론연구들은 아직 초기이다. 따라서 본 논문은 인공지능, 빅데이터, 데이터 공유가 신규 진입기업에 미치는 영향을 게임이론을 활용하여 분석하였다. 먼저 기업의 경영환경을 내부와 외부로 구분하였다. 이후 인공지능 알고리즘을 (1) 고객마케팅, (2) 비용 절감, (3) 비용 절감을 위한 자동화 알고리즘으로 구분하였다. 또한 빅데이터를 외부 및 내부 데이터로 구분하였다. 분석 결과 외부 데이터의 공유는 기존 기업의 고객마케팅 알고리즘에는 영향이 없고 신규 기업의 진입장벽을 완화했다. 하지만 기존 기업의 비용 절감 알고리즘들과 내부 빅데이터의 개선은 신규기업의 시장진입 장벽이 될 수 있다. 이러한 시사점들은 (1) 인공지능, 빅데이터, 데이터 공유에 따른 시장구조, 경쟁, 기업행태 영향분석과 (2) 인공지능과 빅데이터 정책수립 시 이바지할 수 있다. Despite the innovation of AI and Big Data, theoretical research bout the effect of AI and Big Data on market competition is still in early stages; therefore, this paper analyzes the effect of AI, Big Data, and data sharing on an entry firm by using game theory. In detail, the firms' business environments are divided into internal and external ones. Then, AI algorithms are divided into algorithms for (1) customer marketing, (2) cost reduction without automation, and (3) cost reduction with automation. Big Data is also divided into external and internal data. this study shows that the sharing of external data does not affect the incumbent firm's algorithms for consumer marketing while lessening the entry firm's entry barrier. Improving the incumbent firm's algorithms for cost reduction (with and without automation) and external data can be an entry barrier for the entry firm. These findings can be helpful (1) to analyze the effect of AI, Big Data, and data sharing on market structure, market competition, and firm behaviors and (2) to design policy for AI and Big Data.

연골재생을 위한 생분해성 탄성체의 제조

정직한,정동준 한국고분자학회 2008 한국고분자학회 학술대회 연구논문 초록집 Vol.33 No.2

年齡에 따른 發達特徵과 指導方法에 對한 考察

정직모 혜전대학 1999 論文集 Vol.17 No.-

선택적 습식식각을 이용한 나노복합구조물 제작 연구

정직한(J. H. Jeong),김정환(J. H. Kim),조상훈(S. H. Jo),윤재성(J. S. Yoon),유영은(Y. E. Yoo) 한국정밀공학회 2016 한국정밀공학회 학술발표대회 논문집 Vol.2016 No.5월

Fichte의 敎育思想에 關한 硏究

鄭稷謨 혜전대학 1991 論文集 Vol.9 No.-

우리나라 中等敎員의 養成制度에 관한硏究 : THE POINT AT ISSUE IN THE CHANGE OF SYSTEM AND EXISTING SYSTEM

鄭稷謨 혜전대학 1985 論文集 Vol.3 No.-

After reviewing of the history of the training system of the secondary school teacher in Korea and some advanced countries, I derive some problems from the current system and propose some alternative programs. Some problems are as follows ; (ⅰ) The problem of teachers' training institutions of organization. (ⅱ) The problem of getting the qualified teacher. (ⅲ) The problem of keeping teachers as professional job. (ⅳ) The problem of teaching curriculum. Some possible solutions to the above-mentioned problems can be proposed as follows ; (ⅰ) In order to make secondary school teachers as professional job, all the graduates of college who want to become the teacher should be made to take the objective state-run examinations whether they have taken educational subjects or not. (ⅱ) The training institutions of the secondary school teachers had better be divided into the college of teacher and the general college. (ⅲ) Practice teaching period should be extended. Besides practical method and contents of teaching should be substantial. (ⅳ) In order to attract excellent high school graduates to the college of teacher, the more favorable conditions must be provided. (ⅴ) Graduate school of education should be divided into master course and training course of teacher. Training course of teacher had better be given during the daytime more intensively and be shortened. (ⅵ) In providing educational curriculum, (a) Teaching subjects must be more emphasized than general or major subjects. (b) Practial teaching period should be as long as advanced countries. (c) Teaching methods must be improved by enhancing characteristics of each teaching subject, by quoting specific cases collected on the spot and by utilizing more rational and pragmatic teaching materials.

敎育行政에 있어서 意思決定에 관한 硏究 : 學校長의 意思決定行動, 役割, 參與를 中心으로 Focus on the Principal's Decision Making Act, Role, and Participation

鄭稷謨 혜전대학 1990 論文集 Vol.8 No.-

This study attempted to observe decision making as the center in all the steps of the administrative course. Decision making in the approaching way of the system is defined as a cousse in the recognition of the natter condition of the system and in the influence of the substitutes on the basis of the evaluated results about the system. DBA, DRA, and DIA are supposed to be necessary and useful for the role of the principal's decision making and the important of the technique or the analysis. The relation of these differences is drawn in Figure 4. Though these differences are individual in conception, they are always examined to be carried in connection with the role and the act of decision making, the role and the participation of decision making, the role and the participation of decision making or the act and the participation of decision making. In particular, it is more possible and desirous to adjust the focus on only a few cells than to do on all of them among the differences. One or more of them is examined and the cells in Figure 4, which are connected with the principal's variable causes in himself and the other important characteristic of the school system, are quoted from the recent few studies. I finished this study, putting an emphasis on the basic capability for the effective iecision making in the principal's place. This capability is this : the descriminating technique among the patterns of decision making, the deciding technique about the kind and the quantity of the necessary information, the deciding technique of the other men's participation, and the technique of the order ieciding for the activities, and the intentional or unintentional effect expecting technique for decision making. These techniques are to be improved through the experiences and the trainings in decision making.