• Proceedings of the Korean Information Science Society Conference
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• 2001.10a
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• pp.739-741
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• 2001

네트워크 기술의 보편화로 인하여 분산 네트워크 환경에서의 호스트들은 보안 사고의 위험에 항상 노출 되어 있다. 기존의 보안 기술들은 관리자가 보안을 필요로 하는 호스트에 대해 보안 취약점을 찾아서 이에 대해 조치를 취하는 것이 일반적인 방법이다. 이러한 방법들의 문제점은 새로운 보안 사고 유형에 대해 실시간으로 대처할 수 없을 뿐만 아니라, 관리자의 능력 범위 밖에 있는 호스트들은 항상 무방비 상태로 놓여 있는 문제점들이 있다. 본 논문에서는 이동 에이전트 시스템을 사용하여 각 호스트에 특정 보안 유형에 대해 진단 기능을 갖는 이동 에이전트를 파견하고 보안 취약점을 검사한 후 이를 관리자에게 보고 하는 자동화된 보안 취약점의 진단 및 모니터링 시스템에 대해 연구하였다.

• Journal of the Korea Convergence Society
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• v.12 no.2
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• pp.113-120
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• 2021

The objective of this study is to identify the visual function impairment of children with each type of attention deficit hyperactivity disorder(ADHD). The subjects of this study were 49 children diagnosed with ADHD with visual function out of the normal range. The type of ADHD was investigated using the Korean-ADHD Rating Scale and visual function test. The attention deficit type(69.4%) of ADHD was the most common type among children with ADHD with vision problems. Although their overall naked-eye visual acuity was good, about 50% of the subjects showed problems with visual function. For those with the attention deficit type of ADHD, the myopia-related refractive error was high. For those with the hyperactivity type of ADHD, the astigmatism-related refractive error was higher. For those with vergence function disorder, convergence insufficiency was the most common. As there were differences in the visual impairment characteristics of children with different types of ADHD, it is necessary to approach a child's problem behavior through examination and screening for visual function disorders.

• Journal of the Korean Society for information Management
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• v.29 no.1
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• pp.63-94
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• 2012

The purpose of this study was to analyze and evaluate the characteristics of online catalogs' interface of children's libraries, and to propose how to design user-friendly interfaces. The online catalogs of 77 children's libraries which are registered on the National Library Statistics System as of December 2011 were analyzed. They are categorized into 7 types based on interface's characteristics. Such topics as the features of search methods, the record display formats, the terminology usage, and the special features of the 7 types were examined and discussed. Some shortcomings were examined and how to improve them was suggested.

• Journal of the Korea institute for structural maintenance and inspection
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• v.14 no.4
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• pp.169-178
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• 2010

In this study, the optimal strengthening by micro genetic algorithm(${\mu}$-GA) method is proposed for improvement of load-carrying capacity of RC hollow slab bridges using external prestressing. The Qeen-post type and King-post type are considered for the optimal strengthening. The type for optimal strengthening, deviator, areas of tendons and the number of anchor are calculated by ${\mu}$-GA. The objective function is constituted with dimensionless cost of tendon and steel for optimal strengthening. The constraints are formulated by design specification for bridges and anchors. The validity of this study is presented by analysis of the results after the optimal strengthening of the RC hollow slab bridge.

• Journal of the Korea Society of Computer and Information
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• v.18 no.8
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• pp.131-139
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• 2013

In this paper, we look into previous research in relation to each processing step for ECG diagnosis and propose detection and classification method of arrhythmia using rhythm features of ECG signal. Rhythm features for distribution of rhythm and heartbeat such as identity, regularity, etc. are extracted in feature extraction, and rhythm type is classified using rule-base constructed in advance for features of rhythm section in rhythm classification. Experimental results for all of rhythm types in the MIT-BIH arrhythmia database show detection performance of 100% for arrhythmia with only normal rhythm rule and applicability of classification for rhythm types with arrhythmia rhythm rules.

• 한국항공운항학회:학술대회논문집
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• 2015.11a
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• pp.133-137
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• 2015

비행안전과 효율적인 정비를 수행하기 위해서는 우수한 항공정비사의 양성이 절대적으로 필요하다. 이에 따라 본 연구에서는 개인의 행동유형이 항공정비사로서의 업무 숙련도에 미치는 영향이 있는지를 검증하기 위하여 항공정비학과에 재학 중인 학생들을 대상으로 DISC 진단지를 통해 행동유형을 조사하였다. 개인 별 행동유형과 항공기체, 항공기관 및 항공전기 전자 실습성적을 분석하여, 행동유형과 실기 실습 숙련도의 상관관계를 분석하여 항공정비사의 행동 유형이 직무 숙련도에 미치는 영향과 행동 유형별 적합한 항공정비직무를 예측하기 위한 실증연구를 수행하였다.

• School Mathematics
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• v.5 no.2
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• pp.209-221
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• 2003

This study focuses on the necessity of developing the material for teachers who are involved in diagnosing and prescribing students' mathematical errors. And it also intends to stimulate the related research of this area. For this, it tries to suggest the fundamental components-(1)types and frequencies of errors, (2) diagnostic test kit, (3)causes of errors, (4)ideas for prevention, (5)ideas for correction, (6)practice for settlement, and (7) performance test kit and frame of the teaching guide book for the teachers according to the general procedure of diagnosis and prescription. Finally it provides the concrete research areas for the future study.

• Korean Journal of Digital Imaging in Medicine
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• v.5 no.1
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• pp.98-101
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• 2002

대조도와 관용도사이의 손실 교환은 투사 방사선 촬영에 있어서 잘 알려져 있고 또한 오랫동안 지속되어온 영상의 질에 있어서의 제약이었다. 전자적인 영상획득의 도입으로 한 영상 내에 넓은 영역의 X-Tay 노출을 포획하는 것이 가능해 졌다. 그러나, 진단에 필요한 세부영역 들을 위해 적절한 대조도를 유지하는 반면, 일반적으로 기대되는 관용도 범위 이외의 정보가 시각화 되어지는 것과 같은 영상의 rendering과 displaying의 문제가 남아 있었다. 이 문서에 묘사되는 EVP(Enhanced Visualization Processing)는 이 문제를 중점적으로 다룬다. 방대한 진단용 CR 영상 데이터베이스로부터 선택된 14개의 검사유형 당 각각 5개의 영상들을 포함한, 총 70개의 영상들을 사용하여 임상 보고서가 제출되었다. 각 영상에 대해, control rendering은 현재 개발되어 있는 automatic tone scaling algorithm(자동 톤 스케일 알고리즘)에 의해 생성되었고, test rendering은 그 control of image에 EVP를 인가함에 의해 생성되었다. 10명의 radiologist들은 각자 개별적으로 140개의 이미지들(70개의 test renderings와 70개의 control renderings)을 9점의 진단 상의 품질 척도로 평가했다. EVP는 세부 대조도의 부당한 손실 없이 증가된 노출 관용도를 제공했다. 많은 영상에서 EVP는 과소 투과 영역에서의 정보의 손실을 줄여주고, 반면 과다 투과 영역의 밝게 빛나는 현상을 실제적으로 감소시켰다. 진단상의 품질 평가는 EVP image와 control image 모두 평균적으로 높았다. 그럼에도 EVP images의 평균 등위는 control image의 그것보다 1 단계 완전히 높은 범위에 있는 것으로 평가되었다. 쌍으로 그 영상들을 보면, EVP images의 76%가 일치하는 control images의 평가 단계보다 1 또는 그 이상 높은 범주인 것으로 평가되었고, 반면 control image의 6% 만이 일치하는 EVP 영상보다 우수한 것으로 평가되었다. 유사한 결과가 연구된 14개의 검사유형에 대해 획득되었다.

• The Journal of the Acoustical Society of Korea
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• v.30 no.4
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• pp.231-237
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• 2011

The purpose of this study is to examine the correlation between the preferred sensation type and speech sounds, especially on $F_0$ and the speech rates. Data for the sensation types and speech sounds were collected from 36 undergraduate and graduate students (17 male, 19 female). Subjects were asked to read a given text (400 syllables), describe a drawing, and give answers to some questions. We measured speakers' $F_0$ and speech rates. The results show that type V (Visual) has the correlation with the speech rates when type D (Digital) was ruled out, and type A (Auditory) has the correlation with the speech rates when type D was included. Furthermore, the analysis of the mean values of V, A, K (Visual, Auditory, Kinethetic) indicates that type V is characterized with faster speech rates and higher $F_0$ in all parts except for interview and the same is true for that of V, A, K, D (Visual, Auditory, Kinethetic, Digital) in all parts. In conclusion, this study proved that the preferred sensation type has the correlation with $F_0$ and speech rates. Based on the results of this study, $F_0$ and speech rates can be used to analyze the sensation types for individualized education as well as consultation. In addition, this study has great significance in that it lays a foundation for the study on the correlation between a preferred sensation type and speech sounds.

• Journal of Korean Society of Transportation
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• v.23 no.1
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• pp.9-20
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• 2005

Accident type and/or factor identification is important in accident reduction planning. The aim of this paper is to apply the hierarchical approach with binomial distribution and logistic regression analysis to find out types and factors, respectively. Based on 2001 Suwon city black spot data, a binomial distribution modeling approach has been applied to diagnose the black spots, with the help of safety performance modeling approach has been applied to diagnose the black spots, with the help of safety performance function. Then, the logistic regression analysis has been employed to identify the critical factors. Some accident remedies are also reviewed in the light of the model outcomes. The proposed research framework sheds light on a different accident related research and can also be successfully applied to similar studies and sites.