• 한국응용곤충학회지
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• 제22권2호
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• pp.130-137
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• 1983

A wide variety of pathogens are known io be seedborne, carried either as infectious mycelium internally or as contaminants on the seed coat. When seed is infected with a pathogen, the seed nay be rendered nonviable or it may remain viable but produce weak seedling. In some cases, the Infected seedling nay not be severely weakened, but nay serve as a source of primary inoculum within a community of plants. A recent problem nay be the dissemination of seedborne pathogens occurring as a result of the massive movements of seed, as a part of the 'Green revolution' Disease of great danger to agriculture may be introduced with seed from other parts of world. Seed treatment with organic mercury compounds in liquid form had become popular since about 1955. Organic mercury compounds contributed considerably to the increase in production of many crops and vegetables. In 1975, however, the use of organic mercury compound was forbidden because of doubts regarding their residual mammalian toxicity in agricultural products. Benomyl-thiram mixture, thiophanate methyl-;hiram mixture and TCMB have now been registered as seed disinfectants for the use of rice blast, brown spot and Bakanae disease. Oxathiinsthiram mixture has been registered as seed disinfectant for barley and wheat loose smut and leaf stripe of barley. Agricultural techniques have made such rapid progress that the nursery methods changed from the use of paddy nursery to box nursery designed for machine-transplanting. The spread of rice transplanting machines has caused increase of seedborne diseases. Among seedborne diseases, Bakanae disease has remarkably increased and causes much damage recently. In order to counter this trend, seed disinfectants must also be diversified. First, effective non-selective disinfectants need to be developed, and second, appropriate control methods always need to be prepared in parallel with the development of new techniques for cultivation.

• 한국의류산업학회지
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• 제23권6호
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• pp.860-868
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• 2021

Clothing has a very important role in human life, and it is the most human-friendly platform because humans wear it in almost all the time. In the recent years, smart clothing integrated with various functions is solidifying its position as the core of next-generation Information and Communications Technology(ICT). With this global trend, the smart textiles, textiles embedded with electronic devices that are capable of performing various functions, have been attracting a lot of attention. Therefore, various research activities on the smart textiles are in progress, and the global market outlook for the smart textiles is also showing rapid growth. Among the various smart textile technologies, the textile/fiber-based wearable display has been attracting more attention because it is an essential element for wearers to intuitively control the functions integrated in the smart textiles. This paper provides insightful information and the technological elements of organic light emitting diodes(OLEDs) display, which have been evaluated as the most ideal device for luminescent clothing. Since, OLEDs have many advantages such as light weight, extremely thin thickness and great flexibility, the textile/fiber-based wearable OLEDs can be worn without any inconvenience. In addition, by introducing previous studies on the textile/fiber-based OLED displays, we intend to consider the commercial potential of the textile/fiber-based smart luminescent clothing using the OLED technologies.

• 산업진흥연구
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• 제8권4호
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• pp.257-266
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• 2023

이 연구는 중국 서부지역의 대학을 중심으로 진행되었으며, 2017년부터 2021년까지 12개 대학의 연구수준을 정적 효율성과 동적 효율성을 모두 고려하여 조사하였다. 정적 효율성은 데이터 포락 분석(DEA)을 사용하여 검사하였고, 동적 효율은 Malmquist 모델을 사용하여 분석하였다. 분석결과, 서부12개 대학의 과학연구 효율성은 일반적으로 높지 않았으며 '쌍일류' 건설의 맥락에서 대학의 과학연구 효율성은 증가하는 추세를 보이고 있으며, 과학연구 효율성의 원인으로 최근 몇 년 동안 효율성이 크게 증가하였다. 연구 활동의 TFP (Total Factor Productivity)는 기술진보지수의 영향을 받아 초기에 증가하다가 감소하다가 다시 증가하는 패턴을 보였다. 연구 결론은 서부 대학들의 과학연구 활동을 위해 자원을 합리적으로 배분하여 효과적인 과학연구 메커니즘을 갖추어서, 관리기준을 개선하여야 한다. 이에 과학혁신과 이에 상응하는 성과를 촉진하여, 궁극적으로 중국 서부의 과학기술 수준을 높일 수 있어야 하겠다.

• 한방비만학회지
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• 제10권2호
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• pp.1-16
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• 2010

Objectives Obesity is one of the most important health problem in modern society and constant studies are still in progress domestically without the effective treatment so far. The objective of this study is to analyze the recent trend of the studies about obesity in oriental medicine and to provide background for further studies. Methods All of the articles in the journal of 'Korean oriental association for study of obesity' were collected published after 2006. Search were conducted through 'http://oasis.kiom.re.kr' and the journal of 'the Korean academy of oriental rehabilitation medicine'(January 2006~October 2010) with the search word "obesity". Collected articles were classified into clinical study, experimental study, literary study, case report. Results Total 177 articles were analysed. The number of studies were increasing until 2008 and went down afterwards. According to the classification by the type of study, percentage of clinical study took 45.2%, experimental study took 31.6%, literary study took 14.7%, case report took 8.5%. Conclusion Domestic clinical studies and experimental studies are conducted more focused on the treatment and diagnosis of obesity. Future study on the obesity should be focused on the prevention in the aspect of public health and social cost.

• 한국정보전자통신기술학회논문지
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• 제16권5호
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• pp.279-291
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• 2023

최근 몇 년 동안 언어 모델 기반의 생성형 인공지능 기술은 눈에 띄게 발전하고 있다. 특히, 요약, 코드 작성과 같은 다양한 분야에서 활용 가능성이 증가하고 있어 큰 관심을 받고 있다. 이러한 관심의 반영으로, 생성형 인공지능 관련 특허 출원이 급격히 증가하는 추세를 보인다. 이러한 동향을 파악하고 이에 따른 전략을 수립하기 위해 미래 예측이 핵심적이다. 예측을 통해 해당 기술 분야의 미래 동향을 정확히 파악하여 더 효과적인 전략을 수립할 수 있다. 본 논문에서는 언어 모델 기반 생성형 인공지능 발전 방향을 확인하기 위해 현재까지 출원된 특허들을 분석하였다. 특히, 각 국가에서의 연구 및 발명 활동을 깊게 살펴보았으며, 연도별 및 세부 기술별 출원 동향을 중점적으로 분석하였다. 이러한 분석을 통해 핵심 특허들이 포함하고 있는 세부 기술을 이해하고, 향후 생성형 인공지능의 기술 개발 트렌드를 예측해 보고자 하였다.

• 유통과학연구
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• 제13권2호
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• pp.105-112
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• 2015

Purpose - There is a recent social trend that is focused on the revitalization of business-founding. Business-founding now has an important impact on the progress of the national economy because of youth unemployment and an increase in baby-boom generation retirees. However, the support and infrastructure required for business-founding of the disabled are very insufficient. Since most supporting policies are on youth or middle-aged business-founding, business-founding by the disabled and the socially weak is losing competitiveness. Accordingly, this study diagnosed the issues by analyzing the current status of business-founding by the disabled and suggested a fostering direction for the advance of business-founding by the disabled. An idea for the founding of various business items is required for the competitiveness of business-founding by the disabled and the establishment of a growth-model based on marketing is required so that business-founding by the disabled would advance toward commercialization with growth potential. Research design, data, and methodology - Regarding the study method, the existing study literature on the status and issues in business-founding was mainly explored. In addition, the existing literature on the status and issues in business-founding by the disabled was also studied. The support on business-founding by the disabled by policy enforced by the 'Welfare Service Agency for the Disabled'and the support of related agencies including financial support on the commercialization of business-founding by the disabled were also examined. Results - Existing studies on business-founding by the disabled are very insufficient. It is very difficult to study a viable business-founding by the disabled fostering policy without thorough learning on the difficulties of business-founding by the disabled. Therefore, this study suggested a direction for the resolution of various issues such as market, funds, item, operational matters, and service by analyzing the difficulties in business-founding by the disabled until now. Particularly, this study suggested that building a commercialization model from the aspect of marketing strategy and the effort to change the growth aspect of the disabled into competitiveness are essential. Conclusions - This study examined the aspect of developing an item-development process for the growth and founding of disabled-owned businesses and the requirement of a government support system by multiple policies. Since the number of studies on business-founding by the disabled is very small, it is expected that this study would become an important study in the field of business-founding by the disabled. The revitalization of business-founding by the disabled substantially contributes to the progress of the state of the economy and continuous interest is required from the viewpoint of equal advance in the society. Success models in business-founding by the disabled should be created continuously and active publicizing of them to the disabled business-founders by analyzing the success cases would also be required. In addition, it is believed that a market entry strategy by way of a win-win strategy and cooperative relation with big companies should be also developed in the future.

• 통합자연과학논문집
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• 제4권1호
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• pp.38-43
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• 2011

The recent global warming may be estimated to give lots of impacts to the human society and biosphere of influencing climate change included by the natural climate variations through the human activity which can directly and/or indirectly play a major role of total atmospheric composition overall. Therefore it currently appears evidences such as hot wave, typhoon, and biosphere disturbance, etc. over the several regions to be influenced by global warming due to increasing the concentration of greenhouse gases in the atmosphere through inducing forest destruction, fossil fuel combustion, greenhouse gases emission, etc. since industrial revolution era. Through the working group report of IPCC (Intergovernmental Panel on Climate Change) for climate change was analyzed by the individual country's current status and figure out the important issues and problems related to the future trend of climate change science with advanced countries preparedness and research, In this study, the first working group report of IPCC focuses on those aspects of the current understanding of the physical science of climate change that are judged to be most relevant to policymakers. As this report was assessed and analyzed by including the progress of climate change science, the role of climate models and evolution in the treatment of uncertainties. This consists of the changes in atmospheric constituents(both aerosols and gases) that affect the radiative energy balance in the atmosphere and determine the Earth's climate, considering the interaction between biogeochemical cycles that affect atmospheric constituents and climate change, including aerosol/cloud interactions, the extensive range of observations snow available for the atmosphere and surface, for snow, ice, and frozen ground and for the oceans, respectively and changes in sea level, the paleoclimate perspective and assessment of evidence for past climate change and the extension, the ways in which physical processes are simulated in climate models and the evaluation of models against observed climate, the development plans and methods of improving expert and building manpower urgently and R&D fund expansion in detail for climate change science in Korea will be proposed.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2012년도 제43회 하계 정기 학술대회 초록집
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• pp.313-313
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• 2012

In recent years there have been many studies of InGaN/GaN based light emitting diodes (LEDs) in order to progress the performance of luminescence. Many previous literatures showed the performance of LEDs by changing the LED structures and substrates. However, the studies carried out by the researchers so far were very complicated and sometimes difficult to apply in practice. Therefore, we propose one simple method of changing the thickness and the numbers of multiple quantum wells (MQWs) in order to optimize their effects. In our research, we investigated electrical and optical properties by changing the well thickness and the number of quantum well (QW) pair in LED structures by growing the structure -inch Si (111) wafer. We defined the samples from LED_1 to LED_3 according to MQW structure. Samples LED_1, LED_2 and LED_3 consist of 5-pair InGaN/GaN (3.5 nm/ 4.5 nm), 5-pair InGaN/GaN (3 nm/4.5 nm) and 7-pair InGaN/GaN (3.5 nm/4.5 nm), respectively. We characterized electrical and optical properties by using electroluminescence (EL) measurement. Also, Efficiency droop was analyzed by calculating external quantum efficiency (EQE) with varying injection current. The EL spectra of three samples show different emission wavelength peaks, FWHM and the blueshift of wavelength caused by screening the internal electric field because of the effect of different MQW structure. The results of optical properties show that the LED_2 sample reduce the internal electric field in QW than LED_1 from EL spectra. the increase in the number of QW pairs reduces the strain and increase the In composition in MQW. And, the points of efficiency droop's peak show different trend from LED_1 to LED_3. It is related with the carrier density in active region. Thus, from the results of experiments, we are able to achieve high performance LEDs and a reduction of efficiency droop and emission wavelength blueshift by optimizing MQWs structure.

• 공업화학
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• 제22권4호
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• pp.343-347
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• 2011

온실가스로 인한 지구 온난화는 엘니뇨, 라니냐와 같은 심각한 기상이변을 초래하고 있으며, 매년 그 피해가 심각하게 증가하고 있는 실정이다. 따라서 온실가스의 80% 이상을 차지하고 있는 $CO_2$ 배출량을 감축하는 것이 매우 시급한 현안으로 부상되고 있다. 다공성 탄소는 고비표면적, 다양한 세공구조, 열 및 화학적 안정성, 재사용성과 같은 높은 유용성으로 인하여 carbon capture and storage (CCS) 기술에서 다른 여러 재료와 함께 중요한 위치를 차지하고 있는 재료이다. 본고에서는 주로 많이 연구되고 있는 CCS 기술 및 연구 동향에 대하여 살펴보았으며, 그 중 경제성과 실용성 흡착제로 각광을 받고 있는 다공성 탄소를 중심으로 배가스 중 $CO_2$ 흡착과 에너지 활용이 가능한 바이오 가스 분리에 대한 특성을 고찰하였다.

• 한국항만경제학회지
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• 제23권3호
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• pp.79-101
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• 2007

국내외 항만 환경 변화에 의하여 개별적인 항만 당국들은 갈수록 치열해지는 경쟁 환경속에서 생존하기 위해 코피티션(co-opetition)이라는 새로운 경영 전략을 적극적으로 전개하기 시작하였다. 초거대형 선사 및 글로벌 컨테이너 터미널 운영업체의 시장 지배력 강화에 항만 당국은 개별 항만이 아닌 복수 항만들이 기존의 경쟁 관계에서 탈피하여 선의의 경쟁과 협력을 통해 항만의 경쟁력 제고와 규모의 경제를 통한 비용 절감 등의 경영전략을 모색해야 한다. 이러한 시대적 변화 속에서 우리나라 항만의 장기적인 발전을 도모하기 위해서는 외국 주요 항만 간 코피티션 전략의 동기 및 유형을 분석하고, 이러한 경영 전략에 영향을 미치는 요인을 분석하여 우리나라의 항만 개발 및 운영과 관련한 정부 정책의 수립에 반영하는 것이 필요하다. 코피티션(co-opetition)은 협력(cooperation)과 경쟁(competition)의 합성어로서 경제 경영 용어로 등장한지 10년이 지난 새로운 경향이다. 코피티션이란 기업들이 각자 경영의 독립성을 유지하면서 자신이 보유한 핵심 역량을 바탕으로 경쟁 관계에 있는 기업과 특정사업 및 업무 분야에 걸쳐 협력 관계를 맺고 이를 통하여 상호 보완적인 역량을 결합함으로써 경쟁 우위를 확보하고자 하는 제휴 전략이라고 말 할 수 있다. 이 개념은 경제학의 게임 이론에서 비롯되었으며, 비즈니스 게임에 참여하는 참가자들 사이의 근본적인 관계가 단순한 경쟁이나 협력의 형태가 아니라 경쟁이면서 동시에 협력적 복합적 관계라는 의미로 해석되고 있다. 진정한 코피티션의 전략은 시장의 파이를 키우고 많은 승리자가 공유하는 것임을 다시 한번 생각하고 이제 우리의 항만이 이를 행동으로 실천할 때이다. 항만 간 코피티션에 대한 객관적인 평가를 위해서는 장기적으로 주요 항만의 비용구조 및 수익구조 등 기본적인 자료에 대한 데이터베이스화를 구축하는 것이 우선적으로 필요하다. 항만 간 코피티션 전략의 성공을 위해서는 성공 가능성이 높은 사업 분야의 선정과 사업의 범위를 명확하게 결정해야 한다.