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      • 테스트 모델을 이용한 VLBI-GPS 콜로케이션 측량 방안의 수립에 관한 연구

        정태준(Jeong, Tae Jun),윤홍식(Yun, Hong Sik),주현희(Joo, Hyun Hee),김태우(Kim, Tae Woo) 한국측량학회 2012 한국측량학회 학술대회자료집 Vol.2012 No.4

        본 연구에서는 VLBI와 GPS의 콜로케이션 측량 방안을 수립하기 위하여 실험모델을 이용한 측량의 세부절차를 점검하였다. 이를 위하여 토탈스테이션을 이용한 측정결과와 GPS 측량방식을 비교하고 정밀 GPS 측량을 수행하여 안테나 기준점의 위치 정확도를 평가하였으며, 각 측량 방식에 따른 연결벡터를 계산하여 비교분석하였다. In this study, we inspected procedure to establish a survey method of VLBI-GPS co-location using test-model. For this, we compared with measurement methods(total station, gps) and evaluated the accuracy of antenna reference point as precise gps surveying. Then we have done a comparative analysis of tie vectors.

      • KCI등재

        한우 태아기 6, 9개월령 등심 조직의 전사체 분석을 통한 근생성 및 지방생성 관여 유전자 발굴

        정태준(Taejoon Jeong),정기용(Ki-Yong Chung),박원철(Woncheol Park),손주환(Ju-Hwan Son),박종은(Jong-Eun Park),채한화(Han-Ha Chai),권응기(Eung-Gi Kwon),안준상(Jun-Sang Ahn),이지웅(Jiwoong Lee),임다정(Dajeong Lim),Mi-Rim Park 한국생명과학회 2020 생명과학회지 Vol.30 No.1

        동물의 근섬유는 배아기와 태아기를 거치며 형성하게 되며 출생 후에는 상처 치유를 위한 것 외에 근섬유 수를 늘리는 순수한 근섬유 형성은 없으며, 이미 존재하고 있는 근섬유의 비대로 근육의 성장이 이뤄진다. 따라서 태아기의 근육의 성장과 발달이 성체의 근육량 및 조성에 미치는 영향이 매우 크며 이 시기에 발현되는 유전자 및 기능을 구명하는 것은 최종적으로 육질, 육량에 개선시키기 위한기초 자료로 활용될 수 있을 것이다. 하지만 한우에서의 연구는 전무한 실정이다. 본 연구는한우 태아기 성장 단계별 근육의 성장과 발달에 관여하는 유전자를 찾기 위한 전사체 분석을 수행하였다. 한우 태아기 6, 9개월령 등심 조직 시료에서 생산한 전사체 자료를 대상으로 DESeq2와 edgeR을 활용하여 성장단계별 유전자의 발현량을 분석하여 차등발현유전자군을 추출했으며, 2개 소프트웨어서 공통적으로 추출된 유전자군(6개월령 특이 발현 유전자 913개, 9개월령 특이 발현 유전자 233개)을 차등발현유전자로 구명 하였다. 차등발현유전자군으로 분류하였다. 차등발현유전자군을 활용하여공발현 유전자 네트워크 분석을 구성하였으며, 유사한 발현 양상을 보이는 유전자들을 그룹화하여 6개월령 특이 발현 유전자군 5개, 9개월령 특이 발현 유전자군 2개의 모듈로 분류했다. 각 모듈은 Gene Ontology (GO) 및 KEGG pathway 분석으로 유의한 기능을 확인하였다. 그 결과, 한우 태아기 6, 9개월령 특이 발현 유전자 네트워크 중, 근육과 지방생성 대사회로와 관련된 2개의 모듈에 대해 네트워크 내에 허브 유전자를 선정할 수 있었다. STRING을 활용하여 단백질 상호작용 네트워크를 구성하고, MCC (maximal clique centrality) 점수를 활용하여 상위 10%의 유전자들을 공발현 분석의 모듈내 허브 유전자로 선정하였다. 그 결과 6개월령 특이 발현 유전자군의 모듈에서는 axin1(AXIN1) 유전자, 9개월령 특이 발현 유전자군 모듈에서는 succinate-CoA ligase ADP-forming beta subunit (SUCLA2) 유전자가 허브 유전자로 확인되었다. AXIN1 유전자는 선행 연구를 통해 6개월령에서 9개월령으로 넘어가면서 근섬유 수의 증식이 억제되고 지방생성이 활발히 이뤄지는 것에 핵심적인 역할을 하는 것으로 추정할 수 있었다. 또한, 시트르산 회로의 중요 요소인 SUCLA2 유전자는 소의 태아기 지방 조직 성장단계에 따라 유전자의 발현이 증가된다는 보고에 따라, 지방 대사와 관련된 유전자임을 알 수 있었다. 추후 한우 태아기 6, 9개월령에 특이적으로 발현된 유전자들을 대상으로 근육 및 지방 형성 관련 기능을 검증하는 후속 연구가 필요할 것이다. The prenatal period in livestock animals is crucial for meat production because net increase in the number of muscle fibers is finished before birth. However, there is no study on the growth and development mechanism of muscles in Hanwoo during this period. Therefore, to find candidate genes involved in muscle growth and development during this period in Hanwoo, mRNA expression data of longissimus in Hanwoo at 6 and 9 months post-conceptional age (MPA) were analyzed. We independently identified differentially expressed genes (DEGs) using DESeq2 and edgeR which are R software packages, and considered the overlaps of the results as final-DEGs to use in downstream analysis. The DEGs were classified into several modules using WGCNA then the modules’ functions were analyzed to identify modules which involved in myogenesis and adipogenesis. Finally, the hub genes which had the highest WGCNA module membership among the top 10% genes of the STRING network maximal clique centrality were identified. 913(6 MPA specific DEGs) and 233(9 MPA specific DEGs) DEGs were figured out, and these were classified into five and two modules, respectively. Two of the identified modules’(one was in 6, and another was in 9 MPA specific modules) functions was found to be related to myogenesis and adipogenesis. One of the hub genes belonging to the 6 MPA specific module was axin1 (AXIN1) which is known as an inhibitor of Wnt signaling pathway, another was succinate-CoA ligase ADP-forming beta subunit (SUCLA2) which is known as a crucial component of citrate cycle.

      • KCI등재

        아베정권의 도덕교육 강화논리 근거에 대해

        정태준(Jeong, Tae-Joon) 대한일어일문학회 2018 일어일문학 Vol.80 No.-

        The study is about the logic of revision of Japanese moral education. The focus is on moral education in education policies led by the Abe administration. The Abe administration`s moral education policy is a political product to rebuild the strong Japan. They are educational revival, enhancement of moral education, and cultivation of nation`s perspective. I think the problem is that the Abe administration`s reinforcement of moral education is to strengthen or follow the revision process in the past. Re-examining the ways of national integration before the world warⅡ is like trying to bring back the past. In other words, the Imperial Rescript on Education(This is called the IRE) worked as a means of controlling the people. As such, the Abe administration is trying to reproduce the ways of past integration in the name of educational regeneration. Specifically, conservative right groups are trying to reset the education system based on the IRE to the traditional Japanese value system. In other words, it reflects the intention of reestablishing the IRE as Japan"s original standards of value. I believe that the intention of reusing the IRE from the following perceptions. It is that the function and role of the IRE worked well before the war, so the Japanese customs and traditions have been well preserved. Thus, strengthening moral education based on the IRE hinders the development of autonomous morality. Since the abolition of the IRE in 1947, moral education has been reorganized several times. However, social crimes by teenagers have not decreased, and the results have provided a justification for enhancing moral education. Specifically, revisions to methods and content have been repeated. The production and distribution of government-published textbooks, special setting of subject, extension of class time, etc. The ultimate goal of the Abe government`s strengthening of moral education can be attributed to the strong rebuilding of Japan. It is similar to the national integration based on the past General citizen mobilization system. This means the resurrection of the past national system represented by the IRE, and the IRE is the tool that has borrowed a recollective memory, history and story to achieve its purpose. In conclusion, the logic of strengthening the moral education of the Abe government is another one of the moral education policy of the past, and it can be concluded that it is an anachronistic idea that hinders the establishment of the identity of the moral education of Japan. It proves that there was no public consensus for moral education, that the logic of strengthening morality is the same as the past, that the background of the crime is juvenile crime, and that the nationalism based on the IRE is activated.

      • KCI등재

        직장인의 직무스트레스가 조직유효성에 미치는 영향에 관한 연구

        정태준(Jeong, Tae Jun),임왕규(Lim, Wang Kyu) 한국벤처창업학회 2015 벤처창업연구 Vol.10 No.4

        본 연구는 직장인들의 직무스트레스가 조직유효성에 미치는 영향에 대해 검증하고자 실시된 연구로서, 2015년 3월부터 5월까지 서울·경기지역 직장인 222명을 대상으로 구조화된 설문지를 통한 실증적 연구방법을 사용하였다. 수집된 자료는 SPSS 18.0 통계패키지를 사용하여 상관관계분석, 빈도분석, 다중회귀분석을 통한 자료 분석으로 다음과 같은 연구결과를 얻었다. 첫째, 인구통계학적 특성에 따라 직장인의 직무스트레스는 유의한 차이가 있었다. 직무스트레스 요인 중 역할모호는 기술직이 영업직과 사무직 보다 낮게 나타났으며, 역할과다는 학력과 년소득이 높을수록 높게 나타났다. 둘째, 직장인의 직무스트레스는 직무만족, 조직몰입과는 부(-)의 관계, 이직의도와는 정(+)의 영향을 미치는 것으로 나타나 가설이 채택되었다. 따라서 직장인들의 직무스트레스가 조직유효성에 통계적으로 유의미한 영향을 미치는 것으로 판명되었다. 이러한 연구결과를 바탕으로, 직장인들의 이직률을 최소화하고 조직몰입과 직무만족을 극대화시키기 위해서는 직무스트레스 문제에 대한 구체적인 관리 방안이 모색되어져야 할 필요성이 있다고 생각된다. The purpose of this study was to investigate the effect that the job stress of employees would have on the organization effectiveness. In this study, 222 employees in Seoul and Gyeonggi province were surveyed from March to May, 2015 through empirical research with the structured questionnaires, and the collected data were statistically computerized under a statistical package of SPSS 18.0 and analyzed based on the correlation analysis, frequency analysis, and multiple regression analysis. The Following results were derived. First, the job stress of employees according to demographic characteristics had a significance difference. The technical employees had the lower role ambiguity of job stress compare to other group and the higher the income years and educational background, the higher the role overload of job stress. Second, the job stress of employees had a negative effect on the job satisfaction and Organization effectiveness but a positive effect on the turnover intention and the hypothesis was adopted. Thus, it turned out that the job stress of employees had a significant effect on the organization effectiveness and there was a significance at the statistical level. Based on this research finding, it is considered necessary to seek the specific measures that can help reduce the turnover rate of employees and improve their job satisfaction and organization commitment in a more effective methods.

      • KCI등재

        일본어학습과 경제적 동기에 대해서

        정태준(Jeong, Tae-Joon) 동북아시아문화학회 2017 동북아 문화연구 Vol.1 No.52

        The economic concept of language acquisition is human capital. Language acquisition requires new values and it is effective to give external motivation. The most effective motivation for foreign language learning is economic reward. It is aimed to acquire the second language as a human capital and enhance social utility. We investigated the purpose and motivation of foreign students to acquire the dominant language of Japanese. First, what is the purpose of studying Japanese as a second foreign language in the case of foreign students staying in Japan? Second, is learning Japanese motivated as a competitive human capital element in the future? Third, if so, what is the learning strategy and content for achieving the goal? Based on the relationship between language proficiency and economic benefits in the labor market, research shows that strong incentives for language acquisition are closely related to economic factors. For example, in relation to the relationship between Japanese acquisition ability and job influence by nationality, Chinese and Vietnamese students answered that they had more influence on salary and human relations than students from other countries. In addition, when asked about the relationship between the period of stay and purpose of studying in Japan, the longer the stay, the higher the economic reason and the higher the university entrance. In this way, foreign students in Japan were made sure that the acquisition of the economic dominant language of Japanese was motivated to acquire what they intended. They consciously aimed at university entrance and human relations formation, and were acquiring Japanese as a human resource to have jobs with high social treatment. In conclusion, the motivation and purpose of learning Japanese are as follows. It is analyzed that it aims to achieve the goal by investing effort and learning by economic motivation. In other words, as you can see from the survey results, acquiring Japanese as a second foreign language and inducing economic incentive were persuasive arguments even for Japanese foreign students from Southeast Asia.

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