랜덤포레스트를 이용한 낙동강 본류의 남조류 발생 영향인자 분석

정우석(Jung, Woo Suk),김성은(Kim, Sung Eun),김영도(Kim, Young Do) 한국습지학회 2021 한국습지학회지 Vol.23 No.1

본 연구에서는 랜덤포레스트를 이용하여 8개 보 지점별 남조류 발생 주요 영향인자를 도출하고, 조류경보제 기반의범주형 예측모델을 개발하였다. 8개 보 지점의 랜덤포레스트의 변수 중요도를 살펴본 결과, 상류의 보 지점들은 남조류 발생에 있어 보 운영에 따른 영향을 직접적으로 받는 것으로 나타났다. 이는 효율적인 보 운영을 통한 남조류 관리가 가능할 수 있다는 것을 의미한다. 중류 구간은 DO와 E.C가 주요 영향인자로 도출되었다. 공간적으로 구미와 김천에 대규모 산업공단들이 밀집되어 있으며, 환경기초시설의 배출량이 큰 영향을 끼치는 구간이다. 따라서 폭염 및 가뭄 시기에 중류 유역에서 배출되는 환경기초시설의 방류는 본류의 E.C를 증가하게 하고 남조류 발생을 촉진 시키는것으로 나타났다. 중·하류에 위치한 보 지점들은 폭염 및 가뭄의 영향을 가장 많이 받는 지역으로 여름철 가뭄에 따른남조류 대발생에 대비하여 선제적인 관리가 필요한 지점으로 나타났다. 본 연구를 통해 지점별 남조류 발생 영향인자를 도출하였으며, 맞춤형 조류관리를 위한 정책적 의사결정의 기초자료로 제공될 수 있을 것으로 판단된다. In this study, the main influencing factors of the occurrence of cyanobacteria at each of the eight Multifunctional weirs were derived using a random forest, and a categorical prediction model based on a Algal bloom warning system was developed. As a result of examining the importance of variables in the random forest, it was found that the upstream points were directly affected by weir operation during the occurrence of cyanobacteria. This means that cyanobacteria can be managed through efficient security management. DO and E.C were indicated as major influencers in midstream. The midstream section is a section where large-scale industrial complexes such as Gumi and Gimcheon are concentrated as well as the emissions of basic environmental facilities have a great influence. During the period of heatwave and drought, E.C increases along with the discharge of environmental facilities discharged from the basin, which promotes the outbreak of cyanobacteria. Those monitoring sites located in the middle and lower streams are areas that are most affected by heat waves and droughts, and therefore require preemptive management in preparation for the outbreak of cyanobacteria caused by drought in summer. Through this study, the characteristics of cyanobacteria at each point were analyzed. It can provide basic data for policy decision-making for customized cyanobacteria management

피하조직 삭제술을 사용한 액취증 수술의 임상적 고찰

김영도(Young Do Kim),문기찬(Kee Chan Moon),김수남(Soo Nam Kim) 대한피부과학회 1991 大韓皮膚科學會誌 Vol.29 No.1

Though many effort,s have been made to develop a safe and effective treatment to control osmidrosis, no such goal has been achieved yet. A subcutaneous shaving method, developed by Inaba, appeared to be a favorable choice because of minimal postoperative scar formation. The authors, with this method operated on 112 cases of osmidrosis and compared the results with those of conventianal surgical therapy performed earlier in our department. The results were as follows : 1. The. average age at the time of the operation was 22.0 years old, and the sex ratio between male and female was 37 to 75. 2. The age onset ranged from 11 to 36 years with average of 15.5 years. 3. Family history for osmidrosis was found in 84.8%. 4. General anesthesia were used in 13 cases, while 99 cases were operated under local anesthesia. 5. The mean duration for operation were 75 minutes. 6. Flematoma were observed in 4.5%, wound disruption in 1.3%, and skin necrosis in 3.1%. 7. The results of analysis in 72 follow up cases for more than 6 months showed: 1). Rate for successful reduction of the malodor was 91.7%. 2) The rate of suppression of sweating was 88.9%. 3) The rate of skin tensian with motion was 2.8%. 4 ) The, pstoperative scars were mild or invisible in 95.1%(Kor J Dermatol 29(1}: 65 71, 1991)

아키텍처 프레임워크의 국방분야 적용 연구

김영도(Young Do Kim),서민우(Min Woo Seo),손태종(Tae Jong Son) 한국IT서비스학회 2004 한국IT서비스학회지 Vol.3 No.2

Traditional information systems in the Ministry of National Defense(MND) are insuffcient about interoperability between all kinds of there. Also there is no the applicable architecture framework to develop information Systems. The Architecture Framework(AF) is to provide guidance for describing architectures for both warfighting operations and business operations and processes in the MND. Therefore, in this paper we propose the MND AF to develop and manage information systems in the MND.

[논문(재료)]Ni-36.5at.%Al 합금에서 V 첨가가 파괴거동 및 마르텐사이트 내부조직에 미치는 영향

김영도(Young Do Kim),최주(Ju Choi),C. Marvin Wayman(C. Marvin Wayman) 한국분석과학회 1992 분석과학 Vol.5 No.2

포스터 발표 : 수질관리 ; 서낙동강에서의 수문운영에 따른 유량 및 수질 변화

김영도 ( Young Do Kim ),권재현 ( Jae Hyun Kwon ),박재현 ( Jae Hyeon Park ),신찬기 ( Chan Ki Shin ) 대한상하수도학회 2006 공동추계 학술발표회 논문집 Vol.2006 No.-

어거스틴의 주기도문 강해에 관한 소고

김영도(Young Do Kim) 영남신학대학교 2009 신학과 목회 Vol.31 No.-

This study aims to explore Augustine's understanding of the Lord's Prayer in one of his earliest writings De sermone Domini in monte. This work is not a commentary in full-fleged fashion but a homily delivered to his audience as he was first ordained as priest in 391. This study is important because in this work, more specifically in his delineation of the Lord's Prayer, we can grasp his creativity as well as his knowledge of his predecessors' commentaries on the Lord's Prayer such as Cyprian's De sermone Domini. Just like his theology at the time when Augustine wrote De sermone Domini in monte, his exegesis was under the sway of Plationism, which he came to overcome in the late 390s. For him, therefore, the Sermon on the Mount does not enumerate the ethical principle by which disciples have to live but lays out steps through which ascetics can achieve mystical union with God. Though he never freed himself of the influence of Platonism from the middle of 390s he was able to comprehend the Pauline anthropology of which he took advantage against Pelagianism. One of Augustine's hermeneutical principles in interpreting De sermone Domini in monte was the numer seven. For him, the Sermon on the Mount characterizes seven Beatitudes. Furthermore, the Lord's Prayer comprises seven petitions. the number seven corresponds to the seven gifts of the Holy Spirit. This is one of the features revealed in his homily on the Lord's Prayer. Augustine delivered De sermone Domini in monte not as theologian but as minister. In short, despite his penchant for Neoplatonism his main concern was to take care of his flocks just as his successive theological controversies were also launched to protect his people.

FCVA 방법으로 증착된 DLC 박막의 열처리에 따른 구조적 물성 분석

金榮道(Young-Do Kim),蔣錫謨(Seok-Mo Chang),朴昶均(Chang-Kyun Park),嚴玄錫(Hyun-Seok Uhm),朴珍奭(Jin-Seok Park) 대한전기학회 2003 전기학회논문지C Vol.52 No.8

친환경 신소재 활용 제방의 침식에 대한 안정성 평가 기술 개발

김영도(Kim, Young Do),박재현(Park, Jae hyeon),정동규(Jung, Dong gue),김광수(Kim, Gwang soo) 대한토목학회 2017 대한토목학회 학술대회 Vol.2017 No.10

크라우드펀딩 자금조달의 유효성 분석

김영도 ( Young Do Kim ),정현석 ( Hyun-seok Jeong ) 한국금융연구원 2018 금융연구 Vol.32 No.3

혁신형 창업기업을 위한 대표적인 자금조달 수단으로 증권형 크라우드펀딩(crowdfunding) 제도가 2016년 국내에 제도화되었다. 증권형 크라우드펀딩은 기업이 온라인 플랫폼을 통해 증권을 발행하고, 다수의 소액투자자가 이에 투자하여 자금을 조달하는 방식을 의미한다. 국내에서 증권형 크라우드펀딩이 본격적으로 제도화된 이후 지난 2년 동안 괄목할만한 성장세를 보여 왔다. 투자자관점에서는 투자자가 빠르게 늘어나고 있으며, 이에 따라 정부가 투자한도 확대 등 규제완화를 계획하고 있기 때문에 당분간 이러한 성장세는 지속될 것으로 예상된다. 본 연구는 어떤 기업의 특성이 지난 2년간 진행된 크라우드펀딩의 성공에 영향을 미치는지 살펴보고, 이어 크라우드펀딩성공이 기업의 성과 개선에 영향을 미치는지를 실증분석을 통해 살펴보고자 하였다. 우선 크라우드펀딩의 성공여부가 과거의 재무적 요인에 의해 결정되지 않는다는 점이 발견되었는데, 이는 크라우드펀딩이 과거의 성과보다는 미래의 성장가능성을 보고 펀딩이 이루어진다는 점에서 긍정적인 효과라고 판단된다. 또한 전체적으로 자금조달에 성공한 기업은 기업의 규모는 성장하고, 매출활동도 크게 개선되는 등 일부 긍정적인 영향이 관찰되었다. 향후 증권형 크라우드펀딩과 관련된 정책방안을 고민할 경우 펀딩 성공이라는 그 자체보다는 지원된 자금이 기업내부의 혁신과 성장을 위해 효율적으로 사용되어 궁극적으로는 사업화에 이르는 과정까지의 지원으로 한 단계 진화토록하는 지원방안을 고려할 필요가 있다. In 2016, the equity-type crowdfunding was introduced and institutionalized in Korea as a major fund-raising tool for innovative start-ups. Equity-type crowdfunding is where a company offers and issues securities for financing via an online platform, and many small investors come to invest in them. In fact, since crowdfunding makes it possible for start-ups to raise fund from the public based on their future growth potential rather than past performance, it could be a major funding source for domestic venture and startup companies. Also, crowdfunding could be a first step in creating a healthy venture and entrepreneurial eco-system, playing a pivotal role as start-ups supporting system. Over the past two years as of the institutionalization of equity-type crowdfunding in Korea, it has seen remarkable growth. In terms of investors, the number of participating investors are growing rapidly. Also, the growth is expected to continue for a time being as policy authority has plans to deregulate regulations regarding equity-based crowdfunding by expanding investment limits, for instance. In particular, the current Korean government policy stance to promote the naissance and development of early innovators is expected to greatly contribute to the revitalization of equity-type crowdfunding. All these given, this study examines whether the characteristics of a firm have been a variable for the success of crowdfunding conducted over the last two years. Then, this study also examines whether the success of crowdfunding affects the performance of the firm. In this paper, we present several meaningful findings. First, there were no clear evidence in difference of financial characteristics between the successful and failed firms. Since crowdfunding is a system that assesses the future of corporations or projects rather than their past performance, it seems that some of the initial intention of Korea's equity-type crowdfunding’s introduction is taking place. In addition, this study analyzes whether firms’ financial indices in financial statements are improved after crowdfunding compared to those firms which failed to procure. We suggest that there were some positive impacts on companies that were successful in funding, as a whole. Specifically, the size of firms with successful crowdfundings are growing, and their sales activities are also significantly improving. Yet, the impact of crowdfunding on substantial corporate performance is still ambiguous with a few exceptions. However, this ambiguity could be coming from the fact that crowdfunding is still at an early stage. Therefore, we think that future discussion needs to be focused on long-term achievements rather than recent short-term results. In the future, if further policy measures on equity-type crowdfunding are considered in a way to improve funding condition of start-ups and SMEs, it is necessary to promote the support measures of crowdfunding. However, future discussion for crowdfunding support measures should look a step further from just making the funding itself successful: Crowdfunding should be a supporting system for the efficient use of funding for firms’ internal innovation, growth and ultimately commercialization, and so on.

스토리텔링 개념을 활용한 전시 연출

김영도(Young-Do Kim),한태우(Tae-Woo Han) 한국엔터테인먼트산업학회 2009 한국엔터테인먼트산업학회논문지 Vol.3 No.3

본 연구는 다음과 같은 과정으로 진행되어진다. 제 1장에서는 연구의 배경과 목적 그리고 범위 및 방법을 서술한다. 제2장에서는 전시 커뮤니케이션과 전시 연출의 새로운 동향을 통해 전시의 개념적 정의를 검토한다. 제 3장에서는 스토리텔링의 정의와 활용을 파악하고, 스토리텔링과 전시 연출의 융합 접점에 대해 분석한다. 제 4장에서는 스토리텔링과 전시 컨셉에 의한 전시 연출의 사례를 제시한다. 제 5장 결론에서는 지금까지의 연구과정을 통해 제시되었던 관람객과 스토리텔링을 기반으로 한 전시연출의 새로운 가능성을 강조한다. This study was progressed as follows : Chapter 1 described the background, purpose, range and method of research. Chapter 2 investigated the conceptual definition of exhibition through the new trend in the exhibition communication and exhibition producing. Chapter 3 identified the definition and application of storytelling, analyzed the convergence point of storytelling and exhibition producing. Chapter 4 presented the case of exhibition producing by storytelling and exhibition concept. Chapter 5, the concluding remarks, emphasized the new possibility of exhibition producing by the spectator and storytelling thus far presented through the process of research.