Dimethyl phthalate(DMP) 분해에 관여하는 목질분해균 선발 및 관련효소 탐색

이혁진,이재원,박준영,최인규 한국목재공학회 2006 한국목재공학회 학술발표논문집 Vol.2006 No.-

Self-assembled Nucleic Acid Nanostructures for Drug Delivery Applications

이혁진 한국고분자학회 2014 한국고분자학회 학술대회 연구논문 초록집 Vol.2014 No.4

우리나라 觀光圈의 類型區分에 關한 考察 : 首都圈응답자의 觀光地 滯在日數를 中心으로

이혁진 서울保健大學 1996 論文集 Vol.16 No.1

The purpose of this study is to classify types of Tourism Areas' in terms of the time-distance method. For this, the types of tourism area are set up by the 'Stay Period'. Literature review and questionnaire method have been used for the purpose. Respondents are centered on Seoul metropolitan area, capital circle. The major findings of this study are summarized as follows; First, As for the recognition about tourism area, the male respondents showed higher degree of recognition than the female ones. Younger respondents with higher educational background also displayed higher recognition. Second, As for the preference on tourism area, Ch'ungbu area is the most preferred one, and it is followed by Tongnam, Ch'ungch'oˇng, Seonam, and Cheju area. The stay period in each area is that Ch'ungbu is 1 day, Ch'ungch'oˇng is 1 night 2 days, Seonam is 2 nights 3 days and Tongnam and Cheju are 3 nights 4 days. Third, as far as 'Administrative Unit' concerns, the favorite district is Kyoˇnggi-do. Next is Kangwon, Kyoˇngbuk, Kyoˇngnam, Ch'ungnam, Choˇnnam, Cheju, Ch'ungbuk and Choˇnbuk. In regard to distribution by the stay period in them, 1 day's trip is preferred in Kyoˇnggi-do, 1 night 2 days' trip in Kangwon-do and Ch'ungchoˇngnambuk-do, 2 nights 3 days' trip in Kangwon-do and Kyoˇngsangnambuk-do and 3 nights 4 days' trip in Kyoˇngsangnambuk-do and Cheju-do. Fourth, tourism area types can be divided into 4 patterns on the basis of the stay period;'1 Day', '1 night', '2 nights' and '3 nights'. 1. '1 day' is composed of Seoul-neighborhood zone, Inch'oˇn-Coastal zone, and Ch'unchoˇn zone in Ch'ungbu area. 2. '1 night' is composed of Ch'ungch ng area and a part of Ch'ungbu area. 3. '2 nights' is composed of Tongnam and Seonam area. 4. '3 nights' is composed of South-coastal zone and Cheju area including many islands. Based on the results, the following suggestions can be made for future study. One is the necessity of classifying the tourism areas around other Kwangyeok cities like Pusan, Taegu, Kwangju and Taejon. The other is that it is needed to classify these types by traffic modes and socio-demographic characteristics.

PHABSIM을 이용한 복하천 하류 구간의 피라미 생애주기별 물리적 서식처 평가

이혁진,송인홍,박진석,장성주,홍록기 한국농공학회 2022 한국농공학회논문집 Vol.64 No.4

The objectives of this study were to assess physical habitat suitability of fish species for different life cycle stages and to suggest appropriate ecologicalstream flows in a Bokha downstream reach. A dominant species of Zacco platypus was selected as the study fish of which three stages of spawning,juvenile and adult in life cycle were considered into assessment. The stream hydraulic environment was calibrated with HEC-RAS before the PHABSIMsimulation. The hydraulics of flow velocity and depth were used to estimate Weighted Usable Area (WUA) by multiplying respective habitat suitabilityindices with stream area. Overall the WUAs tend to be great in gentle slopes with relatively shallow water depth regions. Maximum WUAs, ie,candidate for ecological flow rates were 1 m3/s, 7 m3/s and 8 m3/s for the respective spawning, juvenile and adult stages of Zacco platypus. Sincethe ecological flow rates for juvenile and adult stages appeared to be is greater than the abundant flow rate (3.67 m3/s) for the study reach, additionalwater supply may be needed but should be cautious to avoid the spawning period of Apr through May from the stream water management perspective.

관광자원으로서 자연휴양림의 연구동향과 개념정립

이혁진,윤병국 한국관광정보학회 1997 觀光情報硏究 Vol.- No.1

In recent years, the demands for forest recreation in Korea have been increasing rapidly due to the various factors such as the increase of income, the compicated urban life, the growth in the spread of the motor vehicles and the enlargement and diversification of recreation facilities. On the other hand, the current condition and capacity of recreational space was so poor; it is necessary to prepare a plan of the recreational area to provide urban residents with the high quality recreation opportunity. Natural recreational forests are for public health care and rest to promote national welfare as public use of forest resouces in addition to existing forest management. Forest Recreation Activities in the recreational forest are highly recommendable for many urban residents. The purpose of this study is to suggest current trends and future tasks on the forest recreation and natural forests and to investigate characteristics of the recreational forest as the physical tourism resource. Literature review on natural forests in Anglo-American Countries, Japan and Korea has been used for the purpose. The results of this study are as follows. First, Studies on the forest recreation are multidisciplinary in character. Major fields of these studies include many sciences such as economics, geography, tourism, environment and forestry concerned with a wide variety of functions. Second, research issues involved the forest recreation in foreign countries have been drawn from the literature review in Anglo-American Countries and Japan. The types of these studies can be summarized as development and conservation of the forest environment, characteristics of forest tourism resources, functions and benefits of the forest recreation, recreational use of forests and case study of user behavior and pattern. Third, the subjects in Korea can be classified as forest functions, user behavior and recreation pattern, development process and planning of the national recreational forest, classification of recreational forests and demand forecasting and estimation of recreational forests. Finally, based on the results of the literature review, the following suggestions can be made for future study in Tourism and Tourism Geography. First, One is the necessity of further studies on the analysis of geographical location on human and physical landscapes as tourist attractions and on the case study on urban user behavior and recreational activities by using questionnaire method. The other is that it is needed to analyze impacts of recreational forests as tourism resource on human and physical environment.

중국 방송포맷 산업의 활성화 방안에 관한 연구

이혁진,송개려,배기형 한국문화산업학회 2018 문화산업연구 Vol.18 No.1

세계적으로 미디어 산업의 발달과 더불어 방송포맷 프로그램은 경제적 수익은 물론 상당한 부가가치를 창출하고 있다. 중국은 문화적으로 역사가 깊기 때문에 이를 콘텐츠로 개발하여 포맷이라는 방식으로 전파를 할 경우 중국의 전통문화를 홍보하는 것뿐만 아니라 상당한 가치를 얻을 수 있다. 그러나 중국의 방송 포맷시장은 규모면에서는 증가하고 있지만 방송 산업 전반에 걸쳐 성숙단계에 이르지는 못하고 있다. 이에 본 연구의 목적은 중국의 방송포맷산업의 문제점을 파악하고 그에 따른 활성화 방안을 모색하는데 있다. 연구의 결과는 다음과 같다. 첫째, 중국 방송포맷산업의 문제점을 요약하면 중국 내 방송사들의 자체 제작능력의 부재, 정치적인 문제, 해외 방송콘텐츠 규제, 방송 포맷 표절 등이다. 둘째, 이러한 문제점들을 토대로 하여 제시하는 중국 방송포맷산업의 활성화 방안은 방송통신 심의 규정 완화, 저작권 보호제도 마련 등이다. 이러한 활성화 방안을 토대로 중국 제작회사를 비롯한 창작자들에게는 창작의 동기를 부여하게 되면, 중국의 방송포맷 시장이 더욱 더 성장할 수 있는 기회가 될 것이다. With the development of the media industry in the world, the size of the broadcasting format market is continuously increasing. Formatting programs generate significant added value as well as economic returns. However, China's broadcasting format market is growing in scale, but it has not reached the stage of maturity throughout the broadcasting industry. Therefore, in this study, we tried to identify the problems of the broadcasting format industry in China and find ways to activate them. The results of the study are summarized as follows. First, the problems of the Chinese broadcasting format industry can be summarized as the absence of self-production capacity of Chinese broadcasters, political problems, regulation of overseas broadcasting contents, and plagiarism of broadcasting formats. Second, based on these problems, we can summarize the ways to revitalize the Chinese broadcast format industry by easing regulations on broadcasting telecommunications and establishing a copyright protection system. Based on this activation plan, it will give motivation to creators including creators, and it will be an opportunity for Chinese broadcasting format market to grow even more.

중국 교육산업의 경제적 효과분석

이혁진,원팅팅,조국봉,배기형 한국상품학회 2018 商品學硏究 Vol.36 No.4

The purpose of this study is to review the economic effect of Chinese educational industry and to contribute to the policy of development strategy for continuous growth of Chinese educational industry. For this purpose, the 2010 Input-Output Table issued by the Bureau of Statistics of China in 2013 was used. The results of analysis were as follows. First, the total of inducement coefficient of the Chinese educational industry by row was 1.75 in 2010, and the total by column was 1.06, so it can be interpreted that educational industry is yet to be matured. Second, the sensitivity coefficient of Chinese educational industry was 0.58 in 2010, and the impact coefficient was 0.35. As both are less than 1, it is understood that it is still at the final demand type and primitive type industry. Third, the income inducement coefficient of the Chinese educational industry was 0.757, the production tax inducement coefficient was 0.044, and the added value inducement coefficient was 0.992. Finally, if the final demand of the Chinese education industry in 2010 is 1.6 trillion yuan into the Chinese economy, the total industrial production induced by the whole industry is 198.2 trillion yuan, 1.7 trillion yuan (0.9% of total) (3.1%) of the education industry itself, 0.5 trillion yuan (3.8% of the total) in the education industry itself, and the total amount of the production tax is 4.9 trillion yuan And 0.003 trillion yuan (about 0.1% of the total) in the industry itself. 본 연구의 목적은 중국 교육산업의 경제적 효과를 분석하여 향후 중국 교육산업의 지속적인 성장을 위한 정책적 추진전략에 일조하는데 있다. 이를 위해 본 연구에서는 중국 통계국이 2013년에 발행한 2010년 산업연관표를 이용하였으며, 분석 결과는 다음과 같다. 첫째, 중국 교육산업의 생산유발계수의 열합계는 2010년 1.75, 행 합계는 1.06으로 매우 낮아 교육산업이 아직 성숙되지 못했음을 알 수 있다. 둘째, 중국 교육산업의 감응도계수를 보면 2010년 0.58, 영향력계수는 0.35로 모두 1보다 작아 최종수요적 원시산업형임을 알 수 있다. 셋째, 중국 교육산업의 소득유발계수는 2010년 .757, 생산세 유발계수는 0.044, 부가가치유발계수는 0.992로 나타났다. 마지막으로, 2010년 중국 교육산업의 최종수요 1.6조 위안을 중국경제에 투입할 경우 전 산업에서 유발되는 총생산유발액은 총 198.2조 위안 중 교육산업자체에서는 1.7조 위안(전체의 0.9%), 부가가치유발액은 총 31.1조 위안 중 교육산업 자체에서는 0.6조 위안(1.95%), 소득유발액은 총 13.8조 위안 중 교육산업 자체에서는 0.5조 위안(전체의 3.8%), 생산세 유발액은 총 4.9조 위안 중 교육산업 자체에서는 0.003조 위안(전체의 약 0.1%) 등으로 나타났다.

수치해석을 통한 암반에 근입된 현장타설말뚝의 주면부 거동특성 분석 및 설계차트 제시

이혁진,김홍택 대한토목학회 2006 대한토목학회논문집 C Vol.26 No.6

Situations where support is provided solely in shaft resistance of drilled shafts are where the base of the drilled hole cannot be cleaned so that it is uncertain that any end bearing support will be developed. Alternatively, where sound bed rock underlies low strength overburden material, it may be possible to achieve the required support in end bearing on the rock only, and assume that no support is developed in the overburden. However, where the drilled shaft is drilled some depth into sound rock, a combination of side wall resistance and end bearing can be assumed. Both theoretical and field studies of the performance of rock socketed drilled shafts show that the major portion of applied load is usually carried in side wall resistance. Normal stress at the rock-concrete interface is induced by two mechanisms. First, application of a compressive load on the top of the pile results in elastic dilation of the concrete, and second, shear displacement at the rough surface of the drilled hole results in mechanical dilation of the interface. If the stiffness of the material surrounding the socket with respect to normal displacement is constant, then the normal stress will increase with increasing applied load, and there will be a corresponding increase in the shear strength. In this study, the numerical analyses are carried out to investigate the behavioral characteristics of side of rock socketed drilled shafts. The cause of non-linear head load-settlement relationship and failure mechanism at side are also investigated properly and the design charts are suggested and verified for the leading to greater efficiency and reliability in the pile design. 현장타설말뚝이 주면저항력에 의해서만 지지되는 상황은 천공홀 바닥을 청소할 수 없어서 선단부 지지력의 반현 여부를 확신할 수 없을 때이다. 반대로, 신선한 기반암이 낮은 강도의 상부 재료 하부에 있는 경우는 암반에서의 선단지지력만으로 상부 하중을 지탱할 수 있으며, 상부 재료에서는 지지력 발현을 기대하지 않아도 된다. 그러나 신선암에서 일정 깊이 천공을 실시한 경우, 현장타설말뚝은 주면저항력과 선단지지력 모두를 기대할 수 있다. 암반에 근입된 현장타설말뚝의 거동에 관한 이론적 연구와 현장 시험을 통하여 작용 하중의 대부분이 통상 주면저항력에 의해서 지지되게 된다는 사실이 알려져 있다. 암-콘크리트 접촉면에서의 수직응력은 두 가지 기구에 의해 증가하게 된다. 먼저, 말뚝 상부에 작용하는 압축하중에 의해서 콘크리트는 탄성 다이레이션이 발생하고 두 번째로 거친 천공홀 표면에서 전단 변위를 통해서 접촉면의 역학적 다이레이션이 발생되게 된다. 수직 변위에 대한 근입부 주변 물질의 강성도가 일정하면, 작용하중이 증가함에 따라서 수직응력은 증가하게 되며 따라서, 전단강도의 증가 현상이 발생하게 된다. 본 연구에서는 수치해석을 통하여 암반에 근입된 현장타설말뚝의 주면부 거동특성을 조사하였다. 또한, 두부의 하중-침하량(선단부 침하량+말뚝의 탄성변형량) 관계가 비선형성을 띠는 원인 및 파괴기구를 충분히 조사함으로써 암반에 근입된 현장타설말뚝의 주면저항력에 영향을 미치는 요소들을 모두 고려하여 국내 풍화암 및 연암에 근입되는 현장타설말뚝의 설계차트를 제시하고 이를 검증하였다.

Molecularly Self-Assembled Nucleic Acid Nanoparticles for Targeted In Vivo siRNA Delivery

이혁진 한국고분자학회 2012 한국고분자학회 학술대회 연구논문 초록집 Vol.2012 No.10

산과 강이 어우러진 조용한 도시

이혁진 한국지반환경공학회 2008 지반환경 Vol.9 No.2