야산개발지의 대두에 대한 인산효과에 미치는 영향

홍순구,김춘배 韓國作物學會 1978 Korean journal of crop science Vol.23 No.1

인산증시가 야산개발지에 재배되는 대두의 식물체중의 무기성분과 수양 및 수양구성 요소에 미치는 영향을 검토한 바 그 결과를 요약하면 다음과 같다. 1. 경장, 분지수는 토양중의 인산함량과 수량은 개화기 경엽중의 인산함량과 각각 정의 상관관계를 보였다 2. 경장, 분지수, 총건물중, 엽수, 100입중, 그리고 수량이 인산증시와 정의 상관관계를 보였다. 3. 무린산구에 대비한 최대 인산시용구의 증수율은 46.2kg/10a에서 평균 69%였다. The increased application of phosphate on soybean grown in a newly cultivated hill-side field resulted: positive correlation phosphate content in soil and stem length. number of branches and yield. and between increased application of phosphate and yield and yield components. 46.2kg/10a of phosphate application out yielded by 69% the nonapplied plot.

野山開發地의 大豆에 對한 燐酸效果에 미치는 影響

홍순구,김춘배 한국작물학회 1978 한국작물학회지 Vol.23 No.1

중소제조업체의 IS 프로젝트 품질에 영향을 미치는 요인

홍순구,김종원,김나랑,최형림,Seong-Bae Lim 한국경영과학회 2010 한국경영과학회 학술대회논문집 Vol.2010 No.10

The purpose of this research is to investigate the differences of factors influencing IS project quality between large companies and SMEs, and to examine whether a moderating effect on the system type including an enterprise system and a unit system is exist or not. To this end, a questionnaire survey was conducted. The results showed that the factors that influencing IS project quality to large companies and to SMEs are different. In addition, moderating effects on the system type are exist. This research may be the first empirical study to discover that the factors influecing IS project quality for large companies and SMEs are not the same.

『이충무공전서』 귀선도설의 일러스트레이션 표현 연구

홍순구 한국일러스아트학회 2022 조형미디어학 Vol.25 No.3

‘The Collected Works of Yi Sunsin’was compiled in 1795 under the order of King Jeong-jo, and was aimed at enhancing the loyalty and achievements of Yi Sunsin to the country and promoting it to the whole country. At the beginning of the book, there is an explanation of the illustration, structure, and dimensions of the turtle ship, which are very important for the study of turtle ship. It was deployed to prevent the invasion of the sea from the enemy. In ‘The Collected Works of Yi Sunsin’ it was necessary to descriptive writing the illustration and structures of the ‘Byeolje turtle ship’ created by Yi Sunsin in 1591, but, there was no illustration of the handed down Yi Sunsin Turtle Ship. Therefore, descriptive writing on the illustration, structure, and dimensions of the Tongjeyeong turtle ship and the Jeolla Jwasuyeong turtle ship, which were used as battleships at that time, was replaced. In fact, recording the details of the illustrations, structures, and dimensions of the special battleships operated by the Navy in a book so that the public can read them is a leak of military secrets, and there was a risk of sneaking into external enemies. Painter(畫員) in the Dohwaseo(圖畫署) expressed turtle ship paintings so that ordinary people could recognize them naturally, but they had to use optical illusions, emphasis, ambiguous boundaries, unclear locations, and overlapping effects to avoid revealing important military secrets about turtle ship structures acquired for more than 200 years. In addition, important dimensions were excluded from the explanation, and in part, illustration expressions and descriptions were intentionally recorded differently so that the enemy could not perfectly reproduce the turtle ship. The purpose of this study is to reveal the structure of the Tongjeyeong turtle ship and Jeolla Jwasuyeong turtle ship. As a result of the study, the original structure was reproduced by 3D computer graphics by analyzing the illustration and descriptive writing of the intentional manipulation of the two turtle ships. 『이충무공전서』는 1795년(정조19) 임금의 명으로 편찬되었으며, 무신 이순신의 국가에 대한 충성과 업적을 높이고 온 나라에 알리는데 목적이 있었다. 권수에는 통제영 귀선과 전라좌수영 귀선의 일러스트레이션과 구조, 치수에 대한 설명문이 있어 조선시대 귀선 연구에 매우 중요한 사료가 된다. 『이충무공전서』귀선도설에는 1591년 이순신이 창제한‘별제귀선’의 그림과 설명문을 넣어야했지만 전해지는 사료가 없어 1795년 당시에 운용중인 통제영 귀선과 전라좌수영 귀선의 일러스트레이션과 설명문을 넣게 되었다. 수군에서 운용중인 특수한 전함을 사실적 표현의 일러스트레이션과 구조, 치수의 내용을 책에 기록해 일반인이 읽을 수 있도록 반포한다는 것은 사실상 군사기밀의 유출이고, 외적에게 은밀하게 흘러들어갈 위험성도 있었다. 도화서의 화원은 일반인들이 귀선의 일러스트레이션을 자연스럽게 인식할 수 있으면서도 200여년 넘게 운용하면서 얻은 귀선 구조의 중요한 군사기밀이 그림에서 노출되지 않도록 시각적 착시, 강조, 모호한 경계선, 불분명한 위치, 중첩의 효과를 사용해 일러스트레이션 표현기법으로 감춰야 했다. 또한 설명문의 중요한 수치는 의도적으로 누락시키고, 부분적으로 일러스트레이션의 표현과 설명을 다르게 기록해 외적이 귀선을 완벽하게 재현할 수 없도록 오류를 유발시켰다. 본 연구는 『이충무공전서』의 통제영 귀선과 전라좌수영 귀선의 군사기밀 내용을 분석해 구조와 형태의 원형을 찾는데 목적이 있다. 연구결과로, 두 거북선의 의도적인 조작의 시각적 표현과 설명의 분석을 통해 3차원 컴퓨터그래픽으로 원형을 복원하였다.

Consumer Motivators to Co-Create Value: A Consumer Perspective

홍순구,한세억,이상문,김나랑,이현미,김희섭,이미숙 American Scientific Publishers 2015 Advanced Science Letters Vol.21 No.1

RFID 기반 실시간 재고관리시스템

홍순구 한국정보기술응용학회 2006 한국정보기술응용학회학술대회 Vol.2006 No.1

두 부보위험과 최적보험수요

홍순구 한국리스크관리학회 2003 리스크 管理硏究 Vol.14 No.2

이 연구는 기대효용모형에서 서로 다른 두 임의보험간의 상호의존성 및 독립성을 분석한다. 두 위험의 보험수요가 동시적으로 결정되는 경우, 각각의 보험계약은 상호 경쟁적이고도 보완적인 관계에서 보험계약자 전체 자산의 위험을 효율적으로 통제할 수 있는 수단이 된다. 결과적으로 이 연구는, 전통적인 단일위험모형이나 더 나아가 평균·분산이론을 적용한 다변수모형에서 벗어난 보다 일반적인 보험수요의 이론들을 유도해 낸다. 주요 연구결과는 다음과 같이 요약된다. 먼저 두 위험간의 상호의존성은 베르누이정리에서 극명하게 나타난다. 우리는 Brumelle(1974)의 상호의존성 개념을 이용해 베르누이정리가 성립 또는 위배되는 충분조건을 확인할 수 있다. 특히 두 부가보험료의 상대적인 크기는 위험간의 상호의존성과 함께 베르누이정리의 성립여부를 결정짓는 중추적인 역할을 수행한다. 또한 우리는 분리정리를 제시한다. 평균·분산모형과는 달리, 기대효용모형에선 두 위험이 서로 독립적인 확률분포를 갖더라도 두 보험 구입량의 결정은 상호의존적이 된다. 하지만 보험계약자의 효용함수가 일정한 절대위험회피(CARA)의 성향을 보이면, 각 위험에대한 보험수요는 서로 독립적으로 결정되고, 또한 각각의 두 보험수요는 초기 자산과도 무관하게 결정된다. This study analyzes interdependence and independence between two insurance decisions. Two risks affect the coverages of each other, and so substitutional and complementary effects between two insurance arrangements exist. A probable insured may control the overall level of risk by changing the composition of two insurances. Our results generalize the ones of multivariate mean.variance model as well as traditional one risk model as follows. The standard Bernoulli Principle does not necessarily hold in the presence of two insurable risks. This is due to the possibility of a ~tural hedge between the risks. Using the Brumelle(l974)'s strong measure of stochastic interdependence, we derive the sufficient conditions that the Bernoulli Principle holds or violates under actually fair and unfair premiums respectively. In addition, a separation theorem is provided. If the utility function shows constant absolute risk aversion and if two risks are independently distributed, the insured can separate his two insurance decisions. In this case, the optimal coverage of one insurance is unaffected by another insurance coverage or by the initial wealth level.

A Longitudinal Case Study on Evaluating Operational Performance of Production Information Systems in Korean Small and Medium-Sized Manufacturers

홍순구,김나랑,임성배 한국인터넷전자상거래학회 2015 인터넷전자상거래연구 Vol.15 No.5

Many small and medium-sized manufacturing enterprises(SMMEs) have introduced and operated Production Information Systems(PISs). While previous studies evaluated performance immediately before and after system implementation, few investigated the operational performance of PIS, which focuses on the performance over a given period after system implementation. This study analyzes the differences between performance immediately after system implementation(establish and stabilization period) and the performance after a given period of time(operational phase). It also investigates factors that positively influence operational performance. The results showed that downtime decreased more in the operational phase than in the establishment and stabilization phases. In addition, the CEO’s support, user training, system improvement and maintenance, and the expertise and interest of the person in charge of a system were all identified as critical success factors influencing the operational performance of PISs.

A Mean Preserving Spread Interpretation of the Bernoulli Principle Under Initial Wealth Uncertainty

홍순구 한국리스크관리학회 2004 리스크 管理硏究 Vol.15 No.2

The purpose of this paper is to interpret the Bernoulli Principle under initial random wealth using a Mean Preserving Spread defined by Rothshchild and Stiglitz (1970). The reason why partial or over insurance with fair premium ought to be optimal can be intuitively explained by applying the concept of riskiness of final wealth distribution defined by Rothshchild and Stiglitz (1970). We provide a rigorous proof that, by increasing or decreasing the amount of insurance given full insurance, the risk averse individual can reduce the weight in both tails of his final wealth distribution and consequently decrease the variance of the final wealth distribution.Moreover, a precedent insurable risk model is enlarged by inclusion of loss frequency risk. In reality, nearly all property liability risks are 'compound' risks involving loss frequency as well as loss severity. For simplification we quantify the non zero probability mass of no loss. The results of this compound risk model imply earlier related results as special cases. In essence, given a newly changed fair premium schedule, the theorems that we derived in a simpler risk model are so robust that they apply trivially to the enlarged risk model. This confirmation helps us to obtain a deeper understanding of complicated insurance risk model.

중소제조업체의 ERP 도입이 기업 성과에 미치는 영향에 관한 연구

홍순구 한국정보시스템학회 2009 情報시스템硏究 Vol.18 No.2