정량·정성적 분석방법을 활용한 자연재해위험지구 정비사업 효과분석

허보영,Heo. Bo Young 한국방재학회 2013 한국방재학회논문집 Vol.13 No.3

본 연구에서는 자연재해위험지구 정비사업의 질적 수준제고를 위하여 지금까지 수행된 자연재해위험지구 정비사업에 대해 정량 정성적인 방법으로 효과성을 분석했으며, 분석결과를 자연재해위험지구 정비사업의 지속적이고 안정적인 예산확보 필요성을 설명하는 기초자료로 활용하고자 하였다. 자연재해위험지구 정비사업의 효과를 분석하기 위해 국내외 유사사업의 효과분석 사례를 조사하였으며, 이를 바탕으로 정비사업에 대한 효과분석 방법을 제시하였다. 효과분석은 크게 정량적 분석과 정성적 분석으로 구분하였다. 정량적 분석은 비용편익분석을 활용하였으며, 정성적 분석은 설문조사를 통해 (1) 만족도, (2) 정비사업 전 후의 피해경감효과를 분석하였으며, 더불어 일반적으로 설문조사를 통해 알 수 있는 기술적 통계분석 결과 외에 자연재해위험지구 정비사업과 유사한 공공사업인 농업, 산림, 수산업 등의 정책평가에서 사용된 구조방정식모형을 통한 (3) 타당성 분석을 수행하였다. 분석결과 정량적 분석에서는 비용편익비가 1이상을 나타냈으며, 정성적 분석에서도 사업에 대한 효과를 긍정적으로 느끼고 있는 것으로 나타났다. 더불어 분석된 효과는 정비사업의 예산확보에 기여 및 향후 정비사업의 효율적인 추진방향 설정에도 활용될 수 있을 것으로 기대된다. In this study, the effect analysis of the Maintenance Project on Natural Disaster Prone Areas was analysed quantitatively as well as qualitatively in order to improve the quality of the project. The result obtained from this analysis is used as fundamental data to acquire the continuous and stable budget status. In order to analyze the effectiveness of rehabilitation projects of natural disaster risk districts, the cases of effectiveness analysis of similar projects at home and abroad were investigated, and based on this, the methods of effectiveness analysis on rehabilitation projects were presented. The effectiveness analysis was divided roughly into the quantitative analysis and the qualitative analysis. The quantitative analysis utilized the cost-benefit analysis, and the qualitative analysis conducted the analysis through the questionnaire survey on (1) the degree of satisfaction and (2) the damage reduction effectiveness before and after the rehabilitation projects, and (3) the validity analysis through, besides the results of descriptive statistical analysis generally obtained by questionnaire survey, the structural equation model used in the policy evaluation of agriculture, forestry, and fishery industry projects, which are the public projects similar to the rehabilitation projects of natural disaster risk districts. The results of the analysis showed that, in the quantitative analysis, the cost-benefit analysis ratio was more than 1, and also in the qualitative analysis, the effectiveness of the projects was positively perceived. The results of such analysis are expected to contribute to securing the budget for the rehabilitation projects and to be utilized to establish the direction of efficiently promoting the rehabilitation projects going forward.

Automated quantitative analysis of vocal fold vibration using two-dimensional scanning videokymography after transoral laser microsurgery

In-Ho Bae,Hee-June Park 한국언어재활사협회 2021 Clinical Archives of Communication Disorders Vol.6 No.1

Purpose: The purpose of this study was to develop a quantitative automated analysis system for two-dimensional videokymography (2D VKG) using the threshold segmentation method, and to analyze the vocal fold vibration characteristics of vocally healthy subjects and patients who underwent CO2 transoral laser microsurgery using this system, and to examine in accuracy differences between automatic and automated analysis methods. Methods: 29 male patients who underwent CO2 transoral laser microsurgery and 10 vocally healthy male participated in the study. Quantitative analysis such as opening quotient (OQ), phase symmetry index (PSI), amplitude symmetry index (ASI) of 2D VKG images was performed using an automated analysis program in which glottal area extraction by the threshold segmentation method and edge detection using a manual plotting technique were mixed. Results: Automatic analysis enabled accurate quantitative analysis in 76.9% (30/39) of the total image. The automated analysis corrected by the manual plotting technique on the sample showing gross error showed higher accuracy than the automatic analysis. The results of automated and automatic analysis were not statistically different in ASI, but there were differences in OQ and PSI. In addition, vocally healthy group and patients group showed statistical significance in all parameters (OQ, ASI, PSI). Conclusions: The 2D VKG, which can evaluate the vibration of the entire vocal fold tissue in real time, can be usefully utilized as a laryngeal imaging technique that visualizes the structure and function of the vocal fold. Quantitative analysis using automated and automatic analysis can increase the clinical usability of 2D VKG.

Application of Fault Tree Analysis in Supervising Critical Control Points of Spray Dryer

Bao Han 보안공학연구지원센터 2014 International Journal of Control and Automation Vol.7 No.12

FAT (Fault tree analysis) of drying processing was performed to investigate the causes for faults in equipments management. The causes were deductively identified as the events causing every possible hazard by constructing a fault tree. The fault tree was constructed in a hierarchical structure with a single top event fault, four intermediate event faults, and eight basic event faults connected by a Boolean AND gate, or an OR gate. Qualitative analysis of the fault tree yielded minimal cut sets, structural importance, and common cause vulnerability. Quantitative analysis of the fault tree yielded simulation of final top event fault, cut set importance, item importance, and sensitivity. Basically, these factors were a measure to represent the priority order of the basic events causing the top event. The priority order of these basic events was consistent between qualitative and quantitative analysis. Therefore, the FTA, with qualitative and quantitative analysis, was a good alternative approach to fault analysis in spray dryer, and it also could be further used to the analysis of critical control points..

4 Dipyridamole (99m)Tc-MIBI SPECT의 육안 분석과 정량적 분석

최진현 ( Choe Jin Hyeon ),도문홍 ( Do Mun Hong ),이근우 ( Lee Geun U ),신원호 ( Sin Won Ho ),최성란 ( Choe Seong Lan ),함종열 ( Ham Jong Yeol ),최동주 ( Choe Dong Ju ),염명걸 ( Yeom Myeong Geol ),정순일 ( Jeong Sun Il ),최진학 ( C 대한내과학회 1993 대한내과학회지 Vol.44 No.4

연구배경 : 관상동맥 질환을 진단하고 병소의 위치를 결정하거나 그 기능적 의의를 평가하는 비관혈적인 검사법으로 심근 SPECT의 유용성이 널리 인정되고 있다. 저자들은 심근 SPECT의 육안 분석과 정량적 분석방법의 진단적 우위를 비교하기 위하여 본 연구를 시행하였다. 방법 : 허혈성 심장 질환을 의심하여 심근 SPECT와 관상동맥 조영술을 모두 실시한 126명의 환자를 연구 대상으로 하였다. Dipyrdamole 0.56mg/kg을 정주하고 ^(99m)Tc-MIBI 15mCi를 투여한 후 rotating gamma camera를 이용하여 부하 스캔을 구하였고, 4시간 후 ^(99m)Tc-MIBI 25mCi를 다시 투여한 후 재분포 스캔을 시행하였다. 단층 영상을 3방향으로 재배치하여 육안적으로 분석하였다. Technetium 흡수의 분포도로부터 전체 좌심실을 대표하는 2차원의 극지도를 그리고, CSMC에 의해 개발된 정상치와 비교함으로써 최종적인 병변 극지도를 구하여 정량적으로 분석하였다. 관류 결손의 재관류 여부를 육안분석으로 완전 재관류, 부분 재관류, 무 재관류군으로 구분하였고, 각 군에서의 정량적 관류 정도를 비교하였다. 결과 : 관상동맥 질환 진단의 전체적인 민감도는 육안 분석으로 91%, 정량적 분석으로는 94%로서 유의한 차이가 없었으며, 특이도는 각각 76% 및 71%로 역시 유의한 차이가 없었다. 개개의 관상동맥 분지의 병변을 육안 및 정량적 분석으로 발견할 수 있는 민감도는 좌전하행지가 각각 89% 및 92%, 우관상 동맥이 84% 및 93%, 좌회선지가 71% 및 77%로 모든 혈관에서 육안 분석보다 정량적 분석이 높았으나 유의한 차이는 없었다. 육안 및 정량적 분석의 특이도는 좌전하행지가 각각 79% 및 70%, 우관상 동맥이 77% 및 82%, 좌회선지가 96% 및 92%로 유의한 차이는 없었다. 육안 분석에 관류 결손의 완전 재관류는 협심증군에서 심근경색증군보다 유의하게 높았다. 육안분석에 의하여 분류된 각 군의 정량적 분포 정도는 완전 재관류군과 무재관류군 사이나, 부분재관류군과 무재관류군 사이에서는 유의한 차이가 있었으나, 완전 재관류군과 부분재관류군 사이에서는 유의한 차이가 없었다. 결론 : Dipyridamole 정주 후 ^(99m)Tc-MIBI SPECT검사의 정량적 분석이 육안 분석보다 더욱 정확한 분석 방법은 아닌 것으로 생각되며, 재관류 평가의 임상적 중요성에 비추어 볼 때 병변의 심한 정도와 재관류의 정도를 정량화 하는 방법에 대한 연구가 더욱 진행되어야 할 것으로 사료된다. Background: The usefulness of myocardial SPECT in diagnosing coronary artery disease, & assessing the functional significance of the coronary stenosis is confirmed by many investigators. To determine the superiority of the quantitative analysis method over the visual analysis method in assessing myocardial SPECT this study was performed. Methods: One hundred & twenty six patients with suspicious coronary artery disease had both intravenous dipyridamole ^(99m)Tc-MIBI SPECT and coronary angiougraphy within an interval of 5 days. The scintigraphic findings were assessed visually and quantitatively using two dimensional polar map. The results of visual and quantitative assessments were compared to the coronary angiographic findings. In 85 patients who showed perfusion defect on stress scintigraphy, the reversibility of the defect was evaluated by visual analysis. Results: For detection of coronary artery disease, the overall sensitivity of the visual and quantitative analyses was 91% & 94% respectively (p>0.05). The overall specificity was 76% by visual and 71% by quantitative analyses(p>0.05). For detection of individual coronary branch diseases, the quantitative analysis was higher than visual analysis in the sensitivity(LAD: 89% vs. 92%, RCAl 84% vs.93%, LCx: 71% vs. 77%), but the differences were not statistically significant. The specificities of both visual and quantitative analyses were similary high(LAD: 79% vs. 70%, RCA: 77% vs. 82%, LCx: 96% vs. 92%), but there were no significant differences also. The reversibility of perfusion defect was assessed by visual analysis. Of the 144 abnormal vascular territories in 85 patients, 49 vascular territories showed complete redistribution and 30 territories showed partial redistribution. The patients with angina had significantly higher percentage of complete redistribution (angina: 50% vs. MI: 15%, P<0.05). Conclusion: Our results showed that quantitative analysis of ^(99m)Tc-MIBI tomography may not be more accurate technique than visual analysis for detection of coronary artery disease and for localization of individual coronary stenoses.

계량적 분석에 기반한 한국어교육 연구의 현황과 과제

민경모 한국언어문화교육학회 2016 언어와 문화 Vol.12 No.1

This study aims to examine trends and future tasks of the Korean language education researches which use quantitative research methods and quantitative analysis in particular. In this study quantitative research methods are understood as statistical analysis-based research methods. In the quantitative analysis-based researches numerical materials are collected (characteristic aspect of the materials) and the materials are processed using statistical methods (processing aspect of the materials). The following points are examined. Firstly, a problem of subclassification of the quantitative method-based Korean language education researches is dealt with. Secondly, the two aspects, i.e. the collection of numerical materials in the Korean language education researches and the statistical processing of them are presented and a typical order of their statistical processing is examined. Thirdly, a problem of the quantitative indicator playing an important role in the collection of quantified materials is examined. The problem refers to what kind of quantitative indicators are used in corpus studies, and what kind of studies can be used in order to implement new quantitative indicators. Lastly, the study is concluded with a question on how the quantitative studies should deal with criticism on the quantitative analysis-based studies stating that the studies conducted in an artificial environment with restricted variables have difficulties in properly explaining complicated teaching-learning conditions. In order to examine recent trends in the quantitative analysis-based Korean language education studies this study examined research methods used in articles from three academic journals on Korean language education published in the last five years (from 2010 to September 2015). The examination revealed that 185 papers used quantitative analysis. Among them studies utilizing descriptive statistics were most common. In case of studies utilizing inferential statistics, comparative studies verifying differences between groups or variables, correlative studies showing relations between variables, effect relationship studies showing effect relations between variables and classification studies classifying variables or groups were distinguished.

문헌정보학분야에서 메타분석 연구에 관한 고찰

노정순 한국문헌정보학회 2008 한국문헌정보학회지 Vol.42 No.1

Meta-analysis refers to the analysis of analysis. It is the statistical analysis of a large collection of analysis results from individual studies for the purpose of summarizing, integrating and interpreting the inconsistent findings. However, no meta-analysis study has been conducted in Library and Information Science in Korea. This Study introduced the charactersistics, basic principles, analysis procesure, and major models of meta-analysis, reviewed meta-analysis studies in Library and Information Science, and discussed major problems in conducting meta-analysis in Library and Information Science especially in Korea. 메타분석(Meta-Analysis)이란 분석에 대한 분석(analysis of analysis)이란 의미로, 특정 연구문제에 대해 독립적으로 수행된 선행연구들의 일치하지 않은 결과들을 통합하여 결론을 내리기 위해 개개 연구의 분석결과들을 수학적으로 합성하여 통계적으로 결론을 내리는 방법이다. 본 연구는 메타분석의 특성과 기본 원리, 분석 절차, 대표적인 분석모델을 소개하고, 문헌정보학분야에서의 메타분석연구를 고찰하였다. 다른 학문에 비해 문헌정보학에서 메타분석연구는 매우 소량 수행되었고 국내 문헌정보학분야에서는 전무한 상태이다. 문헌정보학에서 메타분석을 수행하는데 문제점과 메타분석연구를 활성화하기 위해 연구자가 보고서 작성시 유의해야 할 내용을 논의하였다.

Detection and Analysis of Residual Pesticides Based On Surface Raman Spectra of Spinach

Liu Ying-Nan,Yi Shu-Juan 보안공학연구지원센터 2016 International Journal of Hybrid Information Techno Vol.9 No.12

This paper with spinach as the research object, to chlorpyrifos pesticide as detection object, using Raman spectroscopy technique surface pesticides in spinach residual detection method and rapid detection research. Starting from the detection method, study of the classic method and method for rapid detection of current situation of the development, Raman spectroscopy detection method as a means of detection, the selected object of study; master the Raman spectroscopy for rapid detection of the basic principles and originpro 9.0 software acquisition function using, lay the foundation for the subsequent detection of. After the actual test to determine Raman spectroscopy instrument laser wavelength to 473nm, acquisition time 2s spinach sample testing effect Best result. After no medicine Raman spectra to obtain the surface of spinach were denoising analysis results show that wavelet de noise method compared to the adjacent averaging, savitzky Golay method smoothing, median method effect better. On Spinach with different concentrations of chlorpyrifos Raman spectroscopy analysis that accorded with the residual linear relationship. The peak intensity method were selected to establish models were detected in spinach surface of pesticide chlorpyrifos. Raman spectroscopy detection method can of spinach surface of pesticide residues detection analysis. It solves the traditional measurement method for sample pretreatment is complex and long detection time, low efficiency of the measured defect

Gametogenic Cycle by Quantitative Statistical Analysis and the Biological Minimum Size in Protothaca (Notochione) jedoensis (Bivalvia: Veneridae) in Western Korea

박관하,정의영,이창훈,김성한,김성연,서원재,류동기 한국패류학회 2011 The Korean Journal of Malacology Vol.27 No.3

The gametogenic cycle and the spawning season in female and male Protothaca (Notochione) jedoensis were investigated by quantitative statistical analysis and sexual maturity was studied by qualitative histological analysis. In females, monthly changes in the percents of the ovarian tissue area to total tissue area, the percents of the follicle area to total tissue area, the percents of the follicles area to the ovarian tissue area, and the percents of the oocyte area to the ovarian tissue area increased in February and reached the maximum in April, and then gradually decreased from May to July, with the spawning peak between June and July. In males, monthly changes in the percents of the testicular tissue area to total tissue area, and the percents of the spermatogenic stage area to the testicular tissue area increased in February and reached the maximum in April and then showed a rapid decrease from May to July. From these data, it is apparent that the number of spawning seasons in female and male P. (N.) jedoensis occurred once a year, from May to July, with the spawning peak between June and July. Therefore, P. (N.) jedoensis in both sexes showed a unimodal gametogenic cycle during the year. Compared the gametogenic cycle by quantitative statistical analysis in 2007 with the previous qualitative results (Chung and Ryou, 2000) in female and male P. (N.) jedoensis, the results of the gametogenic cycle calculated by quantitative statistical analysis showed some differentiations between two spawning seasons in comparisons of results evaluated by the gonad index by qualitative histological analysis (through individual subjective assessment) including several errors. The spawning season evaluated by quantitative statistical analysis was from May to July, and that evaluated by histological gonad index was June to July. The interval of beginning of two spawning seasons showed one month between them. Therefore, the spawning season of this species should be checked in detail by quantitative analysis because this species has been noted as a target organism for aquaculture. The percentages of sexual maturities of female and male clams ranging from 30.1 to 35.0 mm in length by qualitative histological analysis of this species were 53.3% and 61.1%, respectively, and 100% for clams over 45.1 mm length. The biological minimum size (considering to 50% of group sexual maturity) in female and male clams by quantitative analysis of this species are 32.01 mm in shell length in females and 30.58 mm in males, respectively. According to the growth curves for the mean shell length fitted to von Bertalanffy’s equation by Kim et al.(2003b), individuals ranging from 25.1 to 30.0 mm in shell length were considered to be two years old because Kim et al.(2003) reported that 30.58 and 32.01 mm in shell length were considered to be two years old. Therefore, we assume that both sexes of this population begin reproduction from two years of age. In terms of natural resource management, the present study suggests that harvesting clams less than 30.6 mm in shell length (< 2 years old) can potentially lead to a drastic reduction in recruitment.

계량정보분석 기반의 연구개발 성과분석: 치매 치료용 천연약물 분야

전원경 ( Won Kyung Jeon ),한창현 ( Chang Hyun Han ),강종석 ( Jong Seok Kang ),허은정 ( Eun Jung Heo ),한정수 ( Joong Su Han ),이영준 ( Young Joon Lee ) 대한한방신경정신과학회 2011 동의신경정신과학회지 Vol.22 No.3

Objectives: Trend of R&D of herbal medicine for dementia treatment was examined based on the quantitative information analysis for establishing the national strategy of research on dementia treatment with oriental medicine. Methods: Definition was made to clarify the technology for development of herbal medicine for dementia treatment. Based on the initial keyword provided by experts in the field, queries were compounded to conduct search in the search engines of WoS and DWPI. The raw data (papers or patents) extracted from the initial search were examined by expert-review before objects of analysis were determined. Then, the accumulated data was analyzed in terms of year, country and organization, which led to examination of the trend of R&D. And the research performance evaluation for dementia treatment technologies was also made in terms of country, organization and researcher based on the forward citation analysis. The international cooperation intensity was examined on the basis of analysis of network by researcher before analysis results were put together to select lead researchers. Results: According to the quantitative information analysis of 1,330 articles that were selected as analysis objects, the number of papers on natural products research for dementia treatment has increased by around 4.6 times in recent five years. This indicates that the intensive studies have been underway recently. It was found to be the US that had the highest level in research filed of herbal medicine for dementia treatment and the highest capacity of international cooperation for that purpose. On the contrary, Korea had the share of papers at 5.1%, the number of countries in cooperation research at 8, and the article quality index at 0.40, showing that the qualitative level was insufficient, compared to the quantitative outcome. In particular, Korea was found to have no intensity of international cooperation among researchers. In case of patent, the results of information analysis of 305 patents selected as analysis objects demonstrated that China had the highest share while Korea had the very low frequency of patent application quantitatively. Conclusions: In this study, the research to develop herbal medicine for dementia treatment has recently drawn much attention that has spread around the globe. Therefore, these results suggest establishing the strategy to develop technology for dementia treatment with oriental medicine in the future based on quantitative information analysis.

사회과 교과서의 텍스트 구조 분석을 위한 기초 연구 -정량적 분석 방법의 제안-

송성민 ( Seong Min Song ) 한국사회과교육학회 2013 시민교육연구 Vol.45 No.4

본 연구의 목적은 교과서 분석에 있어 ‘텍스트 구조에 대한 정량적 분석 방안’을 제안하는 것이다. 좋은 교과서 텍스트는 응집성과 구조성을 잘 갖추고 있는 것으로, 이러한 특성을 텍스트성이라고 할 수 있다. 그러나 기존 사회과 교과서 분석 연구는 방법론이 엄밀하지 않고, 보편적으로 적용할 수 없는 내용 분석에 치중한 측면이 있다. 따라서 텍스트 구조에 대한 정량적 분석을 통해 보편적으로 적용 가능한 분석 지표를 개발하였다. 이 지표는 ‘핵술관계’, ‘나열관계’, ‘대응관계’, ‘인과관계’, ‘문해관계’의 5가지 텍스트 구조 유형에 기초한 것이다. 그리고 각 유형이 텍스트 완성도에 기여하는 정도에 따라 가중치를 부여하여 ‘텍스트성지수’라는 분석 지표를 산출하였다. 이러한 분석 방법이 교과서 간, 내용 간 비교 분석 등에 활용되어 관련 분야 확장에 기여할 것으로 기대한다. The purpose of this study is to suggest ‘a method of quantitative analysis about textbook content structure’ on the textbook analysis. A good text of textbooks have well-organized coherence and structuring which are characterized by textuality. However, previous studies of social studies textbook analysis seemed not to be rigorously on methodology aspects and so leaned to content analysis which is not likely to be extended universally. In this article, thus, the analysis index that can be extended universally is developed through quantitative analysis about structure of text. This index is based upon five categories of text structure; that is, the relation of ‘core-description’, ‘enumeration’, ‘equivalence’, ‘cause and effect’, and ‘problem-settlement’. And the categories are weighted in accordance with the degree of text completion. Then, the analysis index named ‘textuality index’ is developed. It is hoped that this method of analysis will be contributed to extend the related area of studies such as comparative analysis among content or textbook.