• 한국방재학회:학술대회논문집
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• 한국방재학회 2007년도 정기총회 및 학술발표대회
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• pp.526-529
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• 2007

Storm and flood damage management systems in national disaster management system(NDMS) were organized into three operation systems. They are prevention, preparation, response, and recovery systems. Disaster resources in each system must be promptly and exactly applied to minimize casualties and loss of properties. However, the disaster resources in current management system can not be immediately used in calamity situation due to the lack of efficiency in statistical data. In this study, the classification system of the disaster resources in storm and flood damage systems was examined to develop the a standard technology in disaster resources management. Problems and reformation points of the classification system were also presented to improve the classification technique and to construct the data base.

• 산업경영시스템학회지
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• 제32권1호
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• pp.20-25
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• 2009

Mahalanobis Taguchi System (MTS) is a pattern information technology, which has been used in different diagnostic applications to make quantitative decisions by constructing a multivariate measurement scale using data analytic methods without any assumption regarding statistical distribution. The MTS performs Taguchi's fractional factorial design based on the Mahahlanobis Distance (MS) as a performance metric. In this work, MTS is used for analyzing Wisconsin Breast Cancer data which has ten attributes. Ten different tests are conducted for the data to determine if the patient has cancer or not. Also, MTS is used for reducing the number of test to define the relationship between each attribute and diagnosis result. The accuracy of diagnosis is compare with two different previous research.

• 지역사회간호학회지
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• 제20권2호
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• pp.134-142
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• 2009

Purpose: This study was to present the process of web-based educational program (WEP) development and to identify factors affecting satisfaction with WEP for the certificate of healthcare managers working at the National Health Insurance Corporation (NHIC). Methods: Subjects were healthcare managers and voluntary participants of WEP. A total of 1,449 respondents were surveyed through an online questionnaire about their satisfaction with the educational contents and system. Results: The mean contents satisfaction was 3.75 (SO 0.54), and system satisfaction 4.68 (SD 0.54). According to statistical analysis, the type of certification, experience and professional career of health care management affected contents satisfaction. And factors affecting system satisfaction were the type of certification and gender. Conclusion: WEP was utilized as a pre-requisite course for the certificate program of healthcare managers. However, the development of advanced WEP is suggested to meet the educational needs of healthcare managers who have certificate or license and their job related to healthcare management.

• International Journal of Computer Science & Network Security
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• 제21권12호
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• pp.61-64
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• 2021

The work is devoted to the problem of modernization of the higher education system of Ukraine through the integration of higher education institutions into the European Higher Education Area. Based on the analysis of statistical data, a conclusion was made about the collapse of the higher education system of Ukraine due to a number of problems, which negatively affects the formation of human capital. The importance of international cooperation with the EU in the field of education for the modernization of higher education is substantiated. The institutional principles of formation are investigated, the main priorities of its development at the present stage are determined. The legal bases of European integration of higher education in Ukraine are analyzed. An analysis of the development of international cooperation of Ukrainian universities and their participation in European educational programs. There is a positive tendency to increase the activity of Ukrainian universities in international cooperation, which increases their position in international rankings. Weaknesses of integration processes are revealed and directions of improvement of higher education are offered.

• 한국방재안전학회논문집
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• 제6권1호
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• pp.9-17
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• 2013

정부부처는 지역사회 내 크고 작은 재난 및 안전사고를 사전에 예방하여 사망자 및 재해자수를 경감시키고 기능적으로 안전을 개선하기 위한 목적으로 행정안전부의 안전모니터링시스템, 소방방재청의 재난전조정보시스템, 국토해양부의 시설위험 신고시스템, 환경부의 환경감시시스템 등을 운영하고 있으며, 대부분 안전 위험요소를 신고하면 이를 개선하여 줄 수 있는 다양한 민원시스템을 갖추고 있다. 본 연구에서는 강동구에 거주하며 방재안전관리사 마스터교육과정을 이수한 전문자원봉사자가 행정안전부 안전모니터링시스템의 핵심이라 할 수 있는 안전모니터링활동을 2012년부터 강동구 최초로 지속적인 신고활동을 해오며 안전모니터봉사단의 전반적인 운영실태를 조사하였으며, 강동구를 서울시 안전모니터링 표준모델로 설정하여 강동구 및 개인 신고 및 제보활동사례의 통계자료분석을 통한 문제점을 도출하여 지역사회특성에 맞는 안전모니터링활동의 효율적인 운영시스템 개선방안을 제시하였다.

• 대한원격탐사학회지
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• 제37권4호
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• pp.777-788
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• 2021

Since aerosol has a relatively short duration and significant spatial variation, satellite observations become more important for the spatially and temporally continuous quantification of aerosol. However, optical remote sensing has the disadvantage that it cannot detect AOD (Aerosol Optical Depth) for the regions covered by clouds or the regions with extremely high concentrations. Such missing values can increase the data uncertainty in the analyses of the Earth's environment. This paper presents a spatial gap-filling framework using a univariate statistical method such as DCT-PLS (Discrete Cosine Transform-based Penalized Least Square Regression) and FMM (Fast Matching Method) inpainting. We conducted a feasibility test for the hourly AOD product from AHI (Advanced Himawari Imager) between January 1 and December 31, 2019, and compared the accuracy statistics of the two spatial gap-filling methods. When the null-pixel area is not very large (null-pixel ratio < 0.6), the validation statistics of DCT-PLS and FMM techniques showed high accuracy of CC=0.988 (MAE=0.020) and CC=0.980 (MAE=0.028), respectively. Together with the AI-based gap-filling method using extra explanatory variables, the DCT-PLS and FMM techniques can be tested for the low-resolution images from the AMI (Advanced Meteorological Imager) of GK2A (Geostationary Korea Multi-purpose Satellite 2A), GEMS (Geostationary Environment Monitoring Spectrometer) and GOCI2 (Geostationary Ocean Color Imager) of GK2B (Geostationary Korea Multi-purpose Satellite 2B) and the high-resolution images from the CAS500 (Compact Advanced Satellite) series soon.

• 대한원격탐사학회지
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• 제37권6_2호
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• pp.1819-1827
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• 2021

최근 도시화로 인한 토지피복의 변화로 불투수층이 증가함에 따라, 강수의 자연적인 지하수 함양이 방해되어 도시홍수와 같은 재난 문제가 발생하고 있다. 따라서 토지피복의 변화에 따른 강수와 지하수위 간 상관관계를 규명하기 위해 본 연구는 소규모 도심지역인 부산광역시 연제구를 대상으로 교차상관분석(Cross-correlation function, CCF) 및 이동평균분석(Moving average method, MA)을 통해 강수와 지하수위간 지연시간을 산정하였다. 지연시간을 산정하기 위해 자기상관분석, 교차상관분석, 이동평균분석을 수행하였으며 피어슨 상관함수를 목적함수로 설정하여 강수량과 지하수위 간 가장 높은 상관계수를 가지는 시차 값을 지연시간으로 결정하였다. 관측공 반경 250 m 내 토지피복형태와 지형은 토지피복지도와 수치지형도를 이용하여 Arc-GIS를 통해 분석하였다. 연구결과 토지피복형태가 도심영향이 많은 불투수층으로 이루어진 GW01, GW03, GW05 (Urban: 71-96%)의 경우 지연시간이 길게 나타났으며(CCF: 42-71일, MA: 148-161일) 식생영향이 많은 투수층으로 이루어진 GW04 (Urban: 35%)는 짧은 지연시간(CCF: 4일, MA: 67일)을 보였다. 토지경사도에 따른 지연시간의 차이는 보이지 않았으며 이는 토지피복형태가 강수와 지하수위 간 지연시간에 영향을 강하게 미치는 요소이기 때문에 토지경사도에 따른 영향이 작용하지 못한 것으로 판단된다. 본 연구를 통해 부산 연제구의 토지 이용에 따른 지하수위와 강수량의 지연시간을 규명함으로써 도시 내 강수의 자연적인 지하수 함양을 위한 도시 녹지공간 조성과 수문학적 재난 예방을 위한 관리계획의 자료로 활용될 수 있을 것으로 기대된다.

• 대한기계학회논문집A
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• 제26권9호
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• pp.1746-1752
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• 2002

Fatigue fracture in machine components is produced by surface micro-crack from stress concentration area such as notch and material defect. It is difficult to predict the remaining fatigue lift of mechanical components because the surface micro-crack on critical area initiates and grows with statistical distribution. Plane bending fatigue tests were carried out on the plain specimen of Al 2024-T3 and the initiation and growth behavior of surface micro cracks were observed. The statistical distribution of surface length of multiple micro cracks and their maximum length were investigated. The maximum surface crack length distributions were analyzed on the basis of the statistics of extremes in order to examine the prediction of remaining life.

• 한국산림과학회지
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• 제96권5호
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• pp.510-514
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• 2007

The main purpose of this study was to develop Mountain Search and Rescue System for enhancing search and rescue operations in the mountains. This study also focused on presenting an alternative to using a cellular phone for requesting rescue due to their unreliability in remote areas. This system is designed to help in the search and rescue of people in emergency situations in the mountains. It is composed of buzzer sensors, environmental information sensors, and a statistical analysis program. A key feature of this system is that it does not require an infrastructure of internet or CDMA networks for its operation in the mountains. The measure for the study was conducted by using a zigbee protocol analyzer, RF module and 433MHz Helical antenna to analyze the rate of data reception in relation to the distance between nodes. This system is applicable to mountains provided the distance between nodes is over 100 m and under 150 m.

• Journal of the Korean Statistical Society
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• 제28권3호
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• pp.337-346
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• 1999

Simple correspondence analysis is a technique for giving a joint display of points representing both the rows and columns of an n$\times$p two-way contigency table. In simple correspondence analysis, the singular value decomposition is the main algebraic tool. But, Choi and Huh(1996) pointed out the singular value decomposition is not robust. Instead, they developed a robust singular value decomposition and provided applications in principal component analysis and biplots. In this article, by using the analogous procedures of Choi and Huh(1996), we derive a robust version of simple correspondence analysis.