소아청소년을 대상으로 한 재활승마 선별도구 : 델파이 방법을 통한 융합연구

황영섭,장현정,홍보영,이지영,권정이 한국융합학회 2018 한국융합학회논문지 Vol.9 No.5

본 연구의 목적은 국내 소아청소년을 대상으로 한 재활승마 선별도구를 개발하는 것으로, 승마장에서 재활승마지도사 들이 참가자를 직접 선별 가능하도록 하기 위함이다. 예비 선별도구는 6명의 전문가가 기존 국외의 지침서들을 참조하여 개발 하였으며 해당 인원이 포함된 총 23명의 전문가들을 대상으로 두 차례의 델파이 연구를 진행하였다. 선별도구 각 항목의 적절 성에 대한 의견을 0점(비동의)~10점(동의)으로 총 11점 척도로 표시하도록 하였다. 항목의 적절성이 8점 이상인 경우를 합의 된 항목으로 간주하였으며 8점 이상인 항목은 48개의 항목 중 39개의 항목이었다. 39 항목의 켄달의 일치계수에서 유의미한 결과값이 나타나(p<.001) 평가자간 의견일치가 되었음을 확인하였으며 따라서 최종 선별도구는 총 39개의 항목으로 구성되었 다. 재활승마 선별도구는 참가자에게 보다 더 안전한 재활승마를 제공할 것이며 향후 성인을 대상으로 한 추가적인 연구가 필요할 것으로 보인다. The aim of this study was to develop the Equine Assisted Activities and Therapies(EAAT) screening tool for children and adolescents, which can be available for the EAAT instructors to screen potential participants in the riding center. The preliminary screening tool was developed by six experts and several international guidelines were used for the references. A two-round Delphi study was performed with 23 experts. Panel members were asked to rate their (dis)agreement with each tool’s item on an 11-point scale. The consensus was considered to be reached when the item was scored more than 8. The consensus was reached on 39 items out of 48, resulting the final screening tool’s items are to be 39. The resulting screening tool could contribute to make safer EAAT settings for participants and the future investigations in adult subjects will be needed.

휴대폰 제조사 선호도 평가에 관한 연구

황영섭,임영문 대한안전경영과학회 2008 대한안전경영과학회 학술대회논문집 Vol.2008 No.1

본 연구에서는 소비자들이 선호하는 휴대폰 제조사 브랜드를 평가하기 위하여 무형 자산 평가기법을 적용하여 비교 분석 하였다. 기존의 연구는 기초적인 통계적 사실에 근거하여 단편적으로 평가를 하였다. 하지만 휴대폰 제조사 선호도 평가는 무형자산 평가와 깊은 관련이 있다. 따라서 본 연구에서는 기존 연구와는 다르게 무형자산 평가기법을 적용하여 휴대폰 제조사 브랜드 선호도를 평가하고자 한다.

압축력을 병용한 하악골 신장술

황영섭,허준,김욱규,박성진,황대석,김용덕,정인교,김규천,Hwang, Young-Seob,Heo, June,Kim, Uk-Kyu,Park, Seong-Jin,Hwang, Dae-Seok,Kim, Yong-Deok,Chung, In-Kyo,Kim, Kyu-Cheon 대한악안면성형재건외과학회 2006 Maxillofacial Plastic Reconstructive Surgery Vol.28 No.6

The purpose of this study was to investigate the biomechanical, histologic findings of distracted regenerate and TMJ response in modified distraction osteogenesis (DO) technique combined with compression force as biomechanical stimulation method which has been suggested in 2002, and developed thereafter by authors. This study was performed with two experiments. First experiment was designed to explore the optimal ratio of compression force versus distraction force for the new DO technique. Second experiment was planned to evaluate the reaction of TMJ tissue, especially condyle, disc after application of the DO technique with compression force. Total 52 New Zealand adult male-rabbits with 3.0kg body weight were used for the study. For the first study, 30 adult male-rabbits underwent osteotomy at one side of mandibular body and a external distraction device was applied on each rabbit with same manner. In the control group of 10 rabbits, final 8 mm of distraction with 1 mm rate per day was done with conventional DO technique after 5 latency days. For the experimental group of 20 rabbits, a compression force with 1 mm rate per day was added to the distracted mandible on 3-latency day after over-distraction (over-lengthening). As the amount of the rate of compression versus distraction, experimental subgroup I (10 rabbits) was set up as 2 mm compression versus 10 mm distraction (1/5) and experimental subgroup II (10 rabbits) was set up as 3 mm compression versus 11 mm distraction (about 1/3). All 30 rabbits were set up to obtain final 8 mm distraction and sacrificed on postoperative 55 day to analysis on biomechanical, and histologic findings of the bone regenerates. For second study, 22 adult male-rabbits were used to evaluate TMJ response after the DO method application with compression force. In the control group, 10 rabbits was used to be performed with conventional DO method, on the other hand, in a experimental group of 10 rabbits, 10 mm distraction with 2 mm compression (1/5 ratio) was done. The remaining 2 rabbits served as the normal control group. Histomorphologic examinations on both condyle, histological studies on condyle, disc were done at 1, 2, 3, 4, 7 weeks after distraction force application. The results were as follows: 1. On the bone density findings, the experimental group II (force ratio - 1/3) showed higher bone density than the other experimental group (force ratio - 1/5) and control group (control group - $0,2906\;g/cm^2$, experimental group I - $0.2961\;g/cm^2$, experimental group II - $0.3328\;g/cm^2$). 2. In the histologic findings, more rapid bone maturation like as wide lamellar bone site, more trabeculae formation was observed in two experimental groups compared to the conventional DO control group. 3. In morphologic findings of condyle, there were no differences of size and architecture in the condyle in the control and experimental groups. 4. In histologic findings of condyles, there were thicker fiberous and proliferative layers in experimental group than those of control group until 2 weeks after distraction with compression force. But, no differences were seen between two groups on 3, 4, 7 weeks after compression. 5. In histologic findings of disc, more collagen contents in extracellular matrix, more regular fiber bundles, and less elastin fibers were seen in experimental group than control group until 2 weeks after distraction with compression. But, no differences were seen between two groups on 3, 4, 7 weeks after distraction with compression. From this study, we could identify that the new distraction osteogenesis technique with compression stimulation might improve the quality of bone regeneration. The no remarkable differences on TMJ response between control and experimental groups were seen and TMJ tissues were recovered similarly to normal TMJ condition after 3 weeks.

Classifying Malicious Web Pages by Using an Adaptive Support Vector Machine

황영섭,권진백,문재찬,조성제 한국정보처리학회 2013 Journal of information processing systems Vol.9 No.3

In order to classify a web page as being benign or malicious, we designed 14basic and 16 extended features. The basic features that we implemented were selected to represent the essential characteristics of a web page. The system heuristically combines two basic features into one extended feature in order to effectively distinguish benign and malicious pages. The support vector machine can be trained to successfully classify pages by using these features. Because more and more malicious web pages are appearing, and they change so rapidly, classifiers that are trained by old data may misclassify some new pages. To overcome this problem, we selected an adaptive support vector machine (aSVM) as a classifier. The aSVM can learn training data and can quickly learn additional training data based on the support vectors it obtained during its previous learning session. Experimental results verified that the aSVM can classify malicious web pages adaptively.

RBF 신경망 분류기의 효율적 구성 방법

황영섭,방승양(Young-Sup Hwang),Sung-Yang Bang 한국정보과학회 1997 정보과학회논문지(B) Vol.24 No.5

Radial basis function(RBF) neural networks have the power of the universal function approximation. But it is usually not straightforward how to construct an RBF neural network to solve a given problem. This paper describes a method to construct an RBF neural network classifier efficiently and effectively. The method determines the middle layer neurons by a fast clustering algorithm, APC-III and computes the optimal weights between the middle and the output layers statistically. We applied the proposed method to construct an RBF neural network classifier for an unconstrained handwritten digit recognition. The experiment showed that the method could construct an RBF neural network classifier fast and the performance of the classifier was better than the best result previously reported. RBF 신경망은 임의의 함수를 근사할 수 있지만 주어진 문제를 풀기 위해 RBF 신경망을 구성하는 간단한 방법이 없었다. 이 논문은 RBF 신경망을 분류기로 사용할 때 이를 효율적이고 효과적으로 구성하는 방법을 설명한다. 제안하는 방법은 빠른 클러스터링 방법인 APC-III을 써서 중간층을 결정하고 중간층과 출력층 사이의 가증치를 통계적 방법으로 구한다. 제안한 방법을 무제약 필기 숫자 인식을 위한 분류기를 구성하는데 적용하였다. 실험은 제안한 방법이 RBF 신경망 분류기를 빠르게 구성할 수 있고, 같은 데이터베이스를 사용한 이전 연구 결과보다 분류기의 성능이 더 나음을 보여 주었다.

무형자산 평가 기법에 관한 연구

황영섭,임영문 대한안전경영과학회 2008 대한안전경영과학회 학술대회논문집 Vol.2008 No.04

Recently, the development of technology has been rapidly proceeding with information technology in various fields. Due to their abstract properties, proper evaluation of intangible assets is very difficult compared to evaluation of tangible assets. Intangible assets are knowledge, technology, and design etc. In general there are two approaches to evaluate the intangible assets such as qualitative and quantitative approach. The qualitative approach contains scoring approach, profile approach, checklist approach, and quantitative approach. Quantitative approach contains cost approach, market approach, income approach, and real-option approach. As an initial step for evaluation of safe work environments, this study compares and analyzes evaluation methods of intangible assets.

무형자산 평가 기법에 관한 연구

황영섭,임영문 대한안전경영과학회 2008 대한안전경영과학회 학술대회논문집 Vol.2008 No.1

단위 범위에서의 탄소발자국 계산 방법에 관한 연구

황영섭,임영문 대한안전경영과학회 2010 대한안전경영과학회 학술대회논문집 Vol.2010 No.1

국가 또는 단체가 기후변화에 대응하기 위해서는 온실가스 배출량을 정확하게 파악하고, 실현가능한 감축목표를 설정한 뒤, 각 세부 분야에서 효과적인 감축전략 및 계획을 세워야 한다. 탄소발자국은 인간의 활동이 환경에 어떠한 영향을 미치는가를 나타내는 지표이다. 탄소발자국을 계산하기 위해서는 직접 영역과 간접 영역으로 세분화하여 계산하여야 한다. 본 연구에서는 단위 범위 차원의 탄소발자국 계산 방법을 연구하였다.

중국 민법상 물권행위이론

황영섭 동국대학교 비교법문화연구원 2011 比較法硏究 Vol.11 No.2

단위 범위에서의 탄소발자국 계산 방법에 관한 연구

황영섭,임영문 대한안전경영과학회 2010 대한안전경영과학회 학술대회논문집 Vol.2010 No.04

국가 또는 단체가 기후변화에 대응하기 위해서는 온실가스 배출량을 정확하게 파악하고, 실현가능한 감축목표를 설정한 뒤, 각 세부 분야에서 효과적인 감축전략 및 계획을 세워야 한다. 탄소발자국은 인간의 활동이 환경에 어떠한 영향을 미치는가를 나타내는 지표이다. 탄소발자국을 계산하기 위해서는 직접 영역과 간접 영역으로 세분화하여 계산하여야 한다. 본 연구에서는 단위 범위 차원의 탄소발자국 계산 방법을 연구하였다.