• 정보처리학회논문지:컴퓨터 및 통신 시스템
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• 제3권8호
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• pp.245-250
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• 2014

최근 의료기술의 발전으로 인하여 응급의료 서비스가 병원에서 가정으로 변화되고 있다. 이와 관련하여 예방 또는 조기진단을 위한 연구가 활발해지고 있다. 특히, 생체신호를 모니터링하여 다양한 u-헬스케어 응용 서비스에 적용하고 있다. 본 논문에서 제안하는 시스템은 다양한 센서로부터 측정된 의료정보 보호 및 보안 기술을 제안하고자 한다. 특히, 생체신호는 개인의 주요 정보이면서 프라이버시와 관련된 정보이기 때문에 보호 및 관리를 위해 2차원 코드화 기술인 QR 코드를 적용하였다. 클라이언트 단말에서는 QR 코드를 분석하여 확인할 수 있도록 하였다. 끝으로 제안한 플랫폼 상에서 의료영상정보와 생체신호의 통합 이미지 파일 생성과 배포를 확인하는 응용서비스를 통해 수행 결과를 보였다.

• 수산경영론집
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• 제49권4호
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• pp.69-81
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• 2018

The fishing vessel buyback program, that is, the project of fishing vessel reduction is a complex challenge that needs to take into consideration for both fishing resource protection and industrial restructuring. By the way, the fishing vessel buyback program in Korea is still poorly fruitful and there are few applications for the project in the country. For example, the buyback program of this nation has some problems like uncertainly set goals, conflicts among targets, no flexibility in the program implementation, low participation in the project and lack in follow-up actions. To solve these problems, this study offers the following alternatives. First, it is setting up detailed targets for fishing vessel buyback. Those targets should be what can be actually driven under policy support, such as reduction in illegal fishing, decrease in an exact number of fishing vessels and decline in fishing capacity rather than what seem to be comprehensive such as protection of coastal or offshore fishery and industrial restructuring. Second, it is taking measures for the livelihood of those who would face disadvantages due to fishing vessel reduction. Those measures providing or supporting the re-education and re-employment of fishery workers and building up systems that help the workers transfer fishing to another job. Third, it is adopting the governance system that overcomes lacks in communications between the fishing vessel buyback program and improves the performance effectiveness of that program. Here, governance means that businesses and authorities concerned in the program interact and cooperate with one another in making and implementing policies related to the project of fishing vessel reduction and assessing the results of that project. Fourth, it is taking actions for fishery reorganization after the fishing vessel buyback program. Factors that can be considered as those actions include supporting fishery workers' cost of fishing vessel reduction, decreasing and modernizing fishing fleets and improving the quality of fishing equipment. In conclusion, the fishing vessel buyback program should be prepared with comprehensive actions or measures that can cope well with a variety of problems that may be arisen from it while keeping itself on the track of its original goals.

• 한국응용과학기술학회지
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• 제38권2호
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• pp.618-627
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• 2021

기능성 화장품이라 함은 피부미백, 주름개선, 자외선차단 등 특정한 기능을 가지고 피부에 효과를 주는 화장품을 말했다. 그런데 2017년 이후 기능성 화장품의 품목이 확대되었다. 대한민국의 기능성 화장품 산업은 미백, 주름, 자외선 차단 제품에 머물고 새로운 기능성 제품의 개발은 미비한 상태이다. 또한 코스메슈티컬과 메디컬 화장품을 비롯한 고기능성 화장품도 아직 정립되지 않은 상태이다. 그리고 국외에 수출실적 순위는 프랑스가 가장 높았고 미국, 독일 순으로 나타났다. 프랑스는 화장품 산업 업계 1위 국가답게 바이오 공업과 기능성 소재에서 메커니즘 중심의 기능성 화장품을 강조하고 있고 미국은 럭셔리 프리미엄 제품에 수요도가 높았으며 독일은 바이오 하이테크 기술에 주목하고 있다. 이처럼 한국도 신흥 산업에 적용할 수 있는 기능성 화장품들의 새로운 소재들을 개발하고 정치와 경제가 뒷받침 되어 연구에 더 집중할 수 있는 환경이 갖춰져 다양한 기능성 화장품 산업 등을 발전시켜 나아가야 할 것이다.

• 한국응용곤충학회지
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• 제31권3호
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• pp.205-240
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• 1992

In reality, it is a green revolution of the entire agricultural matrix in Korea that integrated pest control plays an important role in the possible breakthrough in rice self-sufficiency. In paddy agroecosystem as man-modified environment, rice is newly established every year by transplantation under diverse water regimes which affect a microclimate. Standing water benefits rice by regulating the microclimate, but it favors the multiplication of certain pets through the amelioration of the microclimate. Further, the introduction of high yielding varieties with the changing of cultural practices results in changing occurrence pattern of certain pests. In general, japonica type varieties lack genes resistant to most of the important pests and insect-borne virus diseases, whereas indica type possesses more genes conferring varietal resistance. Thus, this differences among indica type, form the background of different approaches to pest management. The changes in rice cultivation such as double cropping, growing high-yielding varieties requiring heavy fertilization, earlier transplanting, intensvie-spacing transplanting, and intensive pesticide use as a consequence of the adoption of improves rice production technology, have intensified the pest problems rather than reduced them. The cultivation of resistant varieties are highly effective to the pest, their long term stability is threathened because of the development of new biotypes which can detroy these varieties. So far, three biotypes of N. lugens are reported in Korea. Since each resistant variety is expected to maintain several years the sequential release of another new variety with a different gene at intervals is practised as a gene rotation program. Another approach, breeding multilines that have more than two genes for resistance in a variety are successfully demonstrated. The average annual rice losses during the last 15 years of 1977-’91 are 9.3% due to insect pests without chemical control undertaken, wehreas there is a average 2.4% despite farmers’insecticide application at the same period. In other words, the average annual losses are prvented by 6.9% when chemical control is properly employed. However, the continuous use of a same group of insecticides is followed by the development of pest resistance. Resistant development of C. suppressalis, L. striatellus and N. cincticeps is observed to organophosphorous insecticides by the mid-1960s, and to carbamates by the early 1970s in various parts of the country. Thus, it is apparent that a scheduled chemical control for rice production systems becomes uneconomical and that a reduction in energy input without impairing the rice yield, is necessarily improved through the implementation of integrated pest management systems. Nationwide pest forecasting system conducted by the government organization is a unique network of investigation for purpose of making pest control timely in terms of economic thresholds. A wise plant protection is expected to establish pest management systems in appropriate integration of resistant varieties, biological agents, cultural practices and other measures in harmony with minimizing use of chemical applications as a last weapon relying on economic thresholds.

• 원예과학기술지
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• 제32권6호
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• pp.906-911
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• 2014

'Uridream Pink'는 감마선 조사에 의해 의해 발생된 돌연변이에 의해 육성된 금계국속 신품종이다. 우리꽃 종묘에서 자체 육성한 품종인 'Uridream 01'의 발근된 삽수를 대상으로, 2009년 한국원자력연구원에서 다양한 선량의 $^{60}CO$ 감마선을 24시간동안 처리하였다. 10-100Gy 처리 중 30Gy에서 발생된 돌연변이체의 화색은 파스텔 분홍색으로 주로 적자색을 띄는 'Uridream 01'(Red-purple group, 59A)과 차이가 있었다. 2009년부터 2010년까지 변형된 분홍 화색의 변이체를 분리, 삽목을 통해 3회 이상 진행, 고정하였다. 분리 육성된 변형된 분홍 화색의 변이체는 기존의 품종에 비해 상품성 있는 색상을 띄며, 이형주의 발생이 없는 것으로 평가되었다. 꽃의 주된 색은 파스텔 분홍(Red-purple group, 67B)을 띄기에 'Uridream Pink'로 명명하고 국립종자원에 신품종 등록되었다(품종보호: 제4410호). 본 신품종은 화기 및 잎 등이 'Uridream 01'보다는 작지만 다화성이다. 또한 개화기간이 늦은 봄에서 늦가을까지 길어 분화 재배뿐만 아니라 노지 재배도 가능하다.

• 원예과학기술지
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• 제33권5호
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• pp.737-750
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• 2015

국내에서 시판되고 있는 수박 102 품종에 대한 DNA 프로 파일 데이터베이스를 구축하기 위하여 genomic microsatellite(gMS)와 expressed sequence tag(EST) microsatellite(eMS) 마커의 다형성 정도의 비교와 유전적 연관성 분석을 통한 품종식별력 검정 등에 대한 일련의 연구를 수행하였다. 수박 gMS 마커를 이용하여 국내에서 시판되고 있는 수박 102 품종을 검정하였을 때 마커당 3.63개의 평균 대립유전자가 검출되었으며, 평균 PIC 값은 0.479로 나타났다. 이에 반해 eMS 마커는 평균 대립유전자의 수가 2.50개, PIC 값이 0.425로 나타나 gMS 마커보다 다형성 정도가 낮게 나타났다. gMS와 eMS 및 이들 두 종류의 마커를 병합하여 작성된 계통도는 microsatellite 마커의 다형성에 따라 수박 102개 품종을 6-8개의 그룹으로 구분하였고 대부분의 품종의 식별이 가능하였다. 3가지 마커 유형에 따라 작성된 계통도를 Mantel test에 의해 상관 정도를 분석하였을 때 높은 상관($r{\geq}0.80$)을 나타내었다. 따라서 본 연구에 활용된 microsatellite 마커는 수박 유전자원의 특성평가, 순도검정 및 품종의 지문화 작업의 수단으로 유용하게 활용될 수 있을 것이다.

• Biotechnology and Bioprocess Engineering:BBE
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• 제8권6호
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• pp.322-330
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• 2003

The unicellular green alga Haematococcus pluvialis has recently attracted great inter-est due to its large amounts of ketocarotenoid astaxanthin, 3,3'-dihydroxy-${\beta}$,${\beta}$-carotene-4,4'-dione, widely used commercially as a source of pigment for aquaculture. In the life cycle of H. pluvialis, astaxanthin biosynthesis is associated with a remarkable morphological change from green motile vegetative cells into red immotile cyst cells as the resting stage. In recent years we have studied this morphological process from two aspects: defining conditions governing astaxanthin biosynthesis and questioning the possible function of astaxanthin in protecting algal cells against environmental stress. Astaxanthin accumulation in cysts was induced by a variety of environmental conditions of oxidative stress caused by reactive oxygen species, intense light, drought, high salinity, and high temperature. In the adaptation to stress, abscisic acid induced by reactive oxygen species, would function as a hormone in algal morphogenesis from veget ative to cyst cells. Furthermore, measurements of both in vitro and in vivo antioxidative activities of astaxanthin clearly demonstrated that tolerance to excessive reactive oxygen species is greater in astaxanthin-rich cysts than in astaxanthin-poor cysts or astaxanthin-less vegetative cells. Therefore, reactive oxygen species are involved in the regulation of both algal morph O-genesis and carotenogenesis, and the accumulated astaxanthin in cysts can function as a protective agent against oxidative stress damage. In this study, the physiological roles of astaxanthin in stress response and cell protection are reviewed.

• 원예과학기술지
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• 제33권3호
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• pp.453-458
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• 2015

A new Hibiscus cultivar 'Daewangchun', having vigorous growth, uniform plant habit, upright, compact branches, and a long red eye was developed through interspecific crosses between H. syriacus 'Samchully' (♀) and H. sinosyriacus 'Seobong' (♂). The Hibiscus breeding program was initiated in 2005 and Hibiscus ${\times}$ 'Daewangchun' was preliminarily selected as '05-R-204' in 2 008 due to its vigorous growth and stable flower quality w ith rich pink flowers. The s elected line was further evaluated for different growth characteristics, leaf shape, leaf size, and flowering characteristics, as well as tested for distinctness, homogeneity, and stability during 2010-2012. The new cultivar 'Daewangchun' had violet pink flowers (RHS N80C) with a long red eye spot, medium size and fan petals. The size of flower was 12.0 cm and size of the red eye was 3.0 cm. Leaves were 8.7 cm long and 4.7 cm wide. After plant characteristic evaluation for 3 years (2010-2012), 05-R-204 was registered as cultivar 'Daewangchun' (4731, No. of plant variety protection rights) in 2013. This newly developed cultivar 'Daewangchun' has tall vigorous growth and unique flowers with a long red eye and can be used as specimen plants in landscaping.

• Journal of Information Processing Systems
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• 제9권2호
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• pp.287-300
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• 2013

Cloud storage is provided as a service in order to keep pace with the increasing use of digital information. It can be used to store data via networks and various devices and is easy to access. Unlike existing removable storage, many users can use cloud storage because it has no storage capacity limit and does not require a storage medium. Cloud storage reliability has become a topic of importance, as many users employ it for saving great volumes of data. For protection against unethical administrators and attackers, a variety of cryptography systems, such as searchable encryption and proxy re-encryption, are being applied to cloud storage systems. However, the existing searchable encryption technology is inconvenient to use in a cloud storage environment where users upload their data. This is because this data is shared with others, as necessary, and the users with whom the data is shared change frequently. In this paper, we propose a searchable re-encryption scheme in which a user can safely share data with others by generating a searchable encryption index and then re-encrypt it.

• 한국산학기술학회논문지
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• 제13권2호
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• pp.795-800
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• 2012

최근 들어 유, 무선 네트워크를 통한 통신이 비약적으로 발전함에 따라 다양한 서비스가 통신망을 통하여 일상적으로 이루어지고 있다. 이에 따라 데이터 및 개인 정보를 보호할 수 있는 기술이 필수적으로 요구되어 지고 있으며, 이러한 정보보호 문제를 해결할 수 있는 보안 기술에 대한 연구가 활발하게 진행되고 있다. 본 논문에서는 다양한 암호 알고리즘들 중 타원곡선 암호의 키 선택 범위를 확장하기 위하여 실수체 기반 타원곡선 알고리즘의 연산항에 대한 연구를 수행하였다. 실험 결과, 실수체를 사용한 타원곡선 암호는 기존의 정수를 이용한 타원곡선 암호보다 다양한 키를 선택할 수 있어 보다 안전한 암호 시스템을 구현할 수 있음을 알 수 있었다.