• The Bulletin of The Korean Astronomical Society
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• v.44 no.1
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• pp.45.4-45.4
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• 2019

각국의 인구와 국민총생산 등에 대한 천문학 및 천체물리학 관련 박사 연구자수의 상관관계를 구하였다. 그 결과, 국가별 상황에 따라 몇 개의 그룹으로 나뉨을 발견하였고, 신흥 선진국과 전통적 선진국 사이의 상관관계가 차이가 있음을 발견하였다. 이를 바탕으로 각국의 과학이나 경제 정책 등과의 관련성을 논의할 것이며, 특히 한국 천문학의 현주소에 대해 정량적으로 논의하고자 한다. 이를 통해 한국은 후발국과 선진국 사이의 중간자적인 입장임을 밝혔고, 한국 천문학을 선진국 수준으로 발전시키기 위한 투자 규모를 정량적 수치로 제공한다.

• Journal of the Korean Statistical Society
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• v.10
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• pp.81-82
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• 1981

허문열 박사에 의하여 분류된 EDP의 3단계에 대하여 전적으로 동감하며, 우리나라가 현재 초기단계를 벗어나 성장단계에 접어들고 있는 것도 사실이라고 하겠다. 또한 조만간 (5-6년후)에 성숙단계에 접어들기 시작하면 컴퓨터에 의하여 처리되는 통계 package의 사용이 급증하고 이를 다룰 줄 아는 통계인의 수요가 매우 크리라고 믿어진다. 통계를 다루는 학자 또는 실무자들은 사회에서 요구하는 통계서비스(statistical consulting service)를 할 수 있는 것이 바람직하고, 우리의 역할을 다 할 수 있도록 우리 스스로를 준비시켜야 할 것이다. 사회에 통계를 보급시키고 통계의 활용을 더욱 촉진시키기 위하여 다음의 몇가지를 제안하는 바이다. 이들은 또한 허문열 박사의 주제논문에서도 암시되고 있는 방향이라고도 하겠다.

• Journal of Digital Convergence
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• v.12 no.8
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• pp.129-137
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• 2014

How many people does a person have personal relationships before he/she die? According to the research by sociologist Sola Paul, the number of people that a person recognizes importantly is 3,500 persons. People are living in personal relationships with more people than expected. As it is, the study that is important and essential for a person in living the life is the personal relationship. Therefore, since a person should be interested in, study on and practice the personal relationship, this study is a research on the improvement method for mature relationship to understand relationships with most frequently meeting people and coworkers for a person's life. Through researching previous study materials and documents and displaying specific examples on the meaning, the necessity and the criticality of personal relationship and preceding research data, the results of my survey for church teachers' relationships this study suggested the important factors and improvement method for mature relationship.

• Korean Journal of Plant Taxonomy
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• v.40 no.2
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• pp.90-104
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• 2010

Tstomu Ishidoya (1891-1958), a Japanese taxonomist and pharmacognosist, conducted his plant explorations on the Korean peninsula from 1911 to 1943. Especially from 1912 to 1923 Ishidoya, as a governmentemployee of Chosen Governor-General collected numerous specimens of woody plants which were later studied by T. Nakai. Collection numbers totalling 6,487 (= collections) were recorded according to Nakai's studies, while only 1,350 speciemens are confirmed to be preserved now in three Japanese herbaria (Tokyo Universtiy, Kyoto University and National Museum of Nature and Science). All collection sites were described by Nakai using romanized characters with Japanese pronunciation. For this study, one hundred seventy three locality names were reviewed using those of Ishidoya's specimens that are deposited at TI, KYO, and TNS; the database, Korean Biodiversity Information System (http://www.nature.go.kr), and the articles and literature of Nakai and Ishidoya. These are listed in the order of his collection dates.

• Journal of the Korean Geographical Society
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• v.32 no.4
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• pp.587-591
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• 1997

Spatial plans, widely encompassing national or regional plans, are designed for an appropriate management of 'region',which is a complex of social, cultural and economic functions. Designing a spatial plan, therefore, is based on the understanding of the structure, function, and some other characteristics of the region concemed. Area stidies which have been conducted in the fields of geography, regional science and anthropology, have contributed a lot to establishing the whole range of the regional planning system. This is identified in three spheres: setting up planning units based on concrete area studies and appropriate regional divisions, dividing planning areas by the studies on goods and service purchase behavior, endowing specific functions to each planning area. Some suggestions have been made to intensify the connections between area studies and regional planning, which include consensus buiding, planning-oriented area studies by the standardized formatting and sharing of research products by commercialization.

• Journal of the Korean Data and Information Science Society
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• v.22 no.1
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• pp.49-55
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• 2011

There are tries to unite through consilience in many fields. Interdisciplinary research is an instance of those. Linguistic studies called linguistic informatics or quantitative linguistics is a field of interdisciplinary research related with statistics linguists have studied chiefly statistics and linguistics. In the statistical aspect, there is need to supplement somewhat of the result of researches by linguists. This study shows statistical method can supplement insufficient objectivity in linguistic studies, and examines the way to raise a degree of completion of interdisciplinary research on statistics and linguistics. This study also shows an introduction and application of the statistical method can be useful for the deduction of objective linguistic information in linguistic studies.

• Journal of the Korean Data and Information Science Society
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• v.20 no.2
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• pp.321-328
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• 2009

In regression analysis, the ordinary least squares estimates of regression coefficients become poor, when the correlations among predictor variables are high. This phenomenon, which is called multicollinearity, causes serious problems in actual data analysis. To overcome this multicollinearity, many methods have been proposed. Ridge regression, shrinkage estimators and methods based on principal component analysis (PCA) such as principal component regression (PCR) and latent root regression (LRR). In the last decade, many statisticians discussed sensitivity analysis (SA) in ordinary multiple regression and same topic in PCR, LRR and logistic principal component regression (LPCR). In those methods PCA plays important role. Many statisticians discussed SA in PCA and related multivariate methods. We introduce the method of PCR and LRR. We also introduce the methods of SA in PCR and LRR, and discuss the properties of SA in PCR and LRR.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.19 no.3
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• pp.229-236
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• 2001

One of the basic tasks in hydrological analysis is to delineate drainage basins and channel networks. Characteristics of channel networks and drainage basin parameters have been used widely in hydrologic calculation and modeling. DEMs(Digital Elevation Models) are generally used to automatically map the channel networks and to delineate drainage basins. This paper presents an effort to analyze basin characteristics using various DEMs. The quantitative analysis of channel networks begins with Horton's method of classifying stream according to Horton orders in hydro-geomorphy. HGSIS(Hydro-Geo-Spatial Information System) is possible to extract parameters. Usually, hydrologists. surveyors and GSIS researchers have some difficulties in accessing satellite images and in extracting DEMs from them. Therefore, the extracted DEMs from contours of digital map is widely used to have the basic works of hydrological analysis. This study presents proper DEMs to calculate Horton's orders, width function, drainage area, main channel length, total channel length, basin elevation and basin slope at digital map of 1:25,000 scale.

• The Journal of the Korea Contents Association
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• v.5 no.6
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• pp.31-40
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• 2005

In the post-genomic era, researches on proteins as well as genes have been increasingly required. Particularly, work on protein-protein interaction and protein network construction have been recently establishing. Most biologists publish their research results through papers or other media. However, biologists do not use the information effectively, because the published research results are very large. As the growth of internet field, it becomes easy to access these research results. It is important to extract information with a biological meaning from various media. Therefore, In this paper, we efficiently extract the protein information from many open papers or other media and construct the database of the extracted information. We build a protein network from the established database and then design and implement various pathway analysis algorithms which find biological meaning from the protein network.

• The Journal of the Korean bone and joint tumor society
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• v.14 no.2
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• pp.79-85
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• 2008

Soft tissue tumor classifications should be an important part of radiology, oncology and, for orthopedic clinicians and pathologists, they provide diagnostic instruction and prognostic guidelines. In soft tissue tumor classification systems, the World Health Organization (WHO) classifications have become dominant, enabled by the timely publication of new blue books which included detailed text and numerous good illustrations. The new WHO classification of soft tissue tumors was introduced in 2002. Because the classification represents a broad consensus concept, it has gained widespread acceptance around the globe. This article reviews the changes which were introduced the vascular tumors, chondroid-osseous tumors and tumors of uncertain differentiation which have been first recognized or properly classified during the past decade.