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주성현,유재성,정만호 청주대학교 산업과학연구소 2003 産業科學硏究 Vol.21 No.1
In this paper, optical encryption systems using double random phase encoding technique is analyzed. And it is evaluated that the effects of distortion which can be occurred in encrypted images. According to the form of processed data, two kinds of encryption method based on amplitude and phase are dealt, and allowed distortion tolerance about additive noise and loss of information are considered.
주성현 慶北大學校農業科學技術硏究所 2001 慶北大農學誌 Vol.19 No.-
This study addressed the effects of environmental attitude improved using forest environmental interpretation program. While previous research has focused developing interpretation program itself, this study analyzed the effects that environmental interpretation has improved toward pro-environmental attitude. This program was designed self-guiding interpretive techniques at Mt. Palgongsan Provincial Park. Environmental attitude was measured using 12 statements which was based on fifth-graders attitude scale in U.S.A. Data were collected from 84 elementary school participants in this program. Results showed that attitude scores of participants increased toward pro-environmental attitude. Especially, three statements (interest, safe and benefits of forest) are statistically significant differences between pre- and post survey. Results can be used by outdoor educators to evaluate and plan their environmental interpretation programs and methods.
葉의 乾燥에 따른 氣孔開度와 水分 포텐샬과 壓포텐샬 및 相對含水率의 關係
朱城賢 慶北大學校 1991 論文集 Vol.51 No.-
Leaf water potential, pressure potential and leaf conductances don't decline directly according to the decline of relative water contents. Leaf conductances keep equilibrium at more than 90%, in relative water contents, more than -1MPa in leaf water potential, more than 0.5MPa in pressure potential. Relationship between relative value of leaf conductance and all water condition indicates similar tendency without regard to leaf size. Therefore, if it can be become a formula, we can simulate the reaction of water diffusion conductance in accordance with leaf desiccation.
정보시스템 품질 관점에서 평가한 은행 비대면 채널의 성과
주성현,하성호,장쩐위 한국경영과학회 2010 한국경영과학회 학술대회논문집 Vol.2010 No.6
This study targeted the common customers who have experience with indirect banking services, CD/ATM and Internet banking. The surveys were about the current situation that the common customer’ perception of utilizing indirect banking service, in the view of quality factors for information systems(quality of information, quality of service, system quality) that influence customer satisfaction. The results showed that the accuracy, responsibility, reliability, and ease of use of CD/ATM systems have a significant influence on user satisfaction with consideration to the account checking service. Regarding the fund transfer services, accuracy, reliability, security, and ease of use have a significant influence on user satisfaction. Both services have a significant influence on service loyalty. Also, the accuracy, understandability, reliability, and ease of use of Internet banking systems have a significant influence on user satisfaction with consideration to the account checking service. Regarding the fund transfer services, accuracy, reliability, security, and ease of use have a significant influence on user satisfaction. Both services have a significant influence on service loyalty. As indicated in this study, in different forms of banking services, by utilizing the different operation plans flexibly, the amount of business and business plans of indirect banking service can be promoted.
주성현,조진화 경북대학교 환경과학연구소 1995 環境科學硏究所論文集 Vol.9 No.1
The purpose of this study is to investigate the ecological response and the c hange of soil properties resulted from the control of environment factors, light int ensity water soil pH and it is to investigate the species and soil in the studie d site in which Phytolacca americana is dominant. The results were summarized as following. 1. Species composition in studied area in which Phytolacca americana is dominant is that tree species layer consist of Robinla pseudo-acacia, shrub layer consist of Quercus serrata, Ulmus davidiana, Ailanthus altissima, and herb layer consist of Erigeron annuus, Mlscanthus sinerJSis var. purpurascens, Spodiopogon cotulifer. Bidens bipinnata, Taraxacum, and so on. 2. When the simulated acid rain treated with different pH levels, pH changes did not showed distinctly. The greatest changes rate were found in the subjects treated with non soil water stress and pH 3.0. Available Phosphorus subjected to treatments had the greatest value in pH 3.0 treatment and non soil water stress. 3. An increasing rates of root weight were the highest in both non water stress and pH 3.0.
주성현 항공우주시스템공학회 2019 항공우주시스템공학회지 Vol.13 No.6
Prospecting future social environmental changes and improvement research on future technologies is required for prospecting promising technology, as it would be useful for institution·company to set up technical planning. This study aims at providing a methodology for retaining international technology competitiveness, marketable industry, and sustainable promising technology in a field of new growth engine industry such as national unmanned aerial vehicle industry. We draw a result by analysing with tools such as KrKwic, Excel, NetMiner, presenting methods of a Social Network Analysis, sub-group analysis, and cognitive map analysis based on patent data in a field of unmanned aerial vehicle industry. Therefore, this study explored the technology evolution of UAV and to prospect promising technology. As a result, some future promising technologies are prospected as what worths concentrated investment, such as 'system integration tech', 'assessment/airworthiness certification tech', 'avionics', 'pilot control tech', 'identification of friend or foe', 'flight control tech', 'supportive equipment'. 효과적인 유망기술 발굴을 위해 미래 사회 변화를 전망하고, 미래기술 도출 방법론 및 프로세스 개선 연구가 필요하며, 연구소·기업에서 기술기획에 활용할 기초자료의 필요성이 꾸준히 대두되고 있다. 따라서 본 연구는 국내 무인항공기산업과 같은 신성장동력산업의 국제적 기술 경쟁력 확보와 시장성 확보 및 산업성장이 가능한 미래유망 기술을 도출하는 방법론을 제시하는 것이다. 이에 본 연구는 KrKwic, Excel, NetMiner등의 분석툴을 활용하여 무인항공기산업 분야의 특허데이터를 대상으로 동시출현 단어를 활용한 소셜네트워크분석과 하위그룹분석, 인지지도분석 방법을 제시하였다. 이를 통해, 무인항공기산업 분야의 기술진화를 탐색하고 유망기술을 예측하는 방법을 제시하였다. 그 결과, ‘체계연동/통합 기술’, ‘시험평가/감항인증 기술’, ‘항공전자 기술’, ‘비행제어 기술’, ‘피아식별 기술’, ‘비행통제 시스템 기술’, ‘지원장비 기술’ 등은 향후 유망한 기술로 선정하여 집중 투자할 필요성이 큰 기술이라 볼 수 있었다.