• 대한교통학회지
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• 제24권1호
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• pp.39-52
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• 2006

본 연구는 대형 교통사고의 발생지점들을 특성별로 유형화하기 위하여 군집분석(Cluster hnalysis)을 행하고, 아울러 충돌 형태에 미치는 영향요인에 대한 영향 정도를 판별할 수 있도록 하기 위하여 수량화 이론 II류(Quantification II)와 C&RT(Classification and Regression Trees) 방법에 의해 분석을 실시하여 이에 대한 적합성을 평가함으로써, 정량적 척도의 간략화를 도모하고자 하였다. 그 결과, 발생 지점별 유형화에 따른 4개 집단의 판별 및 분류분석의 충돌 형태별 제반 영향요인들 특성은 집단별로 명확한 차이를 보이는 것으로 나타나, 교통사고에 대해 우선 시행되어져야 할 대책과 보완 대책들을 집단별로 체계적으로 제시할 수 있었다. 하지만 상당수 변수들에 결측치가 많아, 막대한 정보 손실이 초래되어 보다 심층적인 분석을 하기 어려웠는바, 이러한 문제점을 해결하기 위해서는 대형 교통사고 조사. 분석 시 표준화된 원 자료 시트의 작성을 의무화할 필요가 있는 것으로 나타났다.

• 아동학회지
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• 제34권1호
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• pp.141-159
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• 2013

This study was conducted in order to develop an observation scale for analyzing the responses of child and therapist in child-centered play therapy in terms of item discrimination, validity, and reliability. The observation scale was developed on the basis of child-centered play therapy literature, the author's experience of child-centered play therapy, the observation of video tapes of play therapy session, and discussions with child-centered play therapy experts. The participants in this study were 54 children aged from 4 to 9 years old who have emotional and behavioral problems, and 7 therapists who consult with the children. The reliability of factors, as measured by inter-rater reliability and Cronbach's', ranged from .72 to .77. The results of factor analysis identified 2 factors and 21 items associated with the reponses of the children, and 2 factors and 19 items associated with the responses of the therapists. The significant factors identified were as follows; (1) the child's response style; (2) the child's response content (adaptability, initiation, structuring, flexibility); (3) the therapist's response style, and (4) the therapist's response content (facilitative response, structuring, nonfacilitative response). In conclusion, these results demonstrated that the observation scale provides a valid and reliable means of analyzing the responses of child and therapist in child-centered play therapy.

• 한국콘텐츠학회논문지
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• 제17권6호
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• pp.98-105
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• 2017

의료기관들의 부채관리 문제는 도산 등 경영위험의 직접적인 요인으로 파악되고 있는데, 현금흐름은 소요자금이나 도산예측에 유용한 정보를 제공해 준다. 본 연구는 24개 종합병원과 23개 병원을 대상으로, 영업활동 현금흐름이 부채상환능력에 미치는 영향을 살펴보기 위하여 회귀분석을 실시하였으며, 부채 위험성에 대비하기 위한 현금흐름 관리방안 모색을 위하여 다변량 판별분석을 실시하였다. 연구결과, 종합병원들은 당기순이익 매입채무의 증대 의료미수금과 재고자산의 감소 방법으로 부채상환능력 수준이 이루어지고 있었는데, 부채상환능력이 없는 경우에는 당기순이익 향상, 현금유출 없는 비용 증대, 의료미수금 감소, 매입채무 증대 등을 검토할 필요성이 제기되었다. 병원들은 당기순이익 현금유출 없는 비용과 매입채무의 증대 현금유입 없는 수익과 의료미수금 및 재고자산의 감소 방법으로 부채상환 능력 수준이 이루어지고 있었는데, 부채상환능력이 없는 경우에는 매입채무의 증대를 검토할 필요성이 제기되었다.

• Archives of Plastic Surgery
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• 제39권2호
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• pp.138-142
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• 2012

Background : Electrical burns are one of the most devastating types of injuries, and can be characterized by the conduction of electric current through the deeper soft tissue such as vessels, nerves, muscles, and bones. For that reason, the extent of an electric burn is very frequently underestimated on initial impression. Methods : From July 1999 to June 2006, we performed 15 cases of toe tissue transfer for the reconstruction of finger defects caused by electrical burns. We performed preoperative range of motion exercise, early excision, and coverage of the digital defect with toe tissue transfer. Results : We obtained satisfactory results in both functional and aesthetic aspects in all 15 cases without specific complications. Static two-point discrimination results in the transferred toe cases ranged from 8 to 11 mm, with an average of 9.5 mm. The mean range of motion of the transferred toe was $20^{\circ}$ to $36^{\circ}$ in the distal interphalangeal joint, $16^{\circ}$ to $45^{\circ}$ in the proximal interphalangeal joint, and $15^{\circ}$ to $35^{\circ}$ in the metacarpophalangeal joint. All of the patients were relatively satisfied with the function and appearance of their new digits. Conclusions : The strategic management of electrical injury to the hands can be both challenging and complex. Because the optimal surgical method is free tissue transfer, maintenance of vascular integrity among various physiological changes works as a determining factor for the postoperative outcome following the reconstruction.

• Architectural research
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• 제9권2호
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• pp.27-35
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• 2007

Our nation has a problem with discrimination of income distribution and inefficient of resources distribution caused by real estate price rising from a sudden economy growth and industrialization. Specially, in recent years, there is a great disparity of apartment price between the north and south of the Han river. Because the housing price is decided by the immanent value of a house and neighborhood effects of the regional where the house is situated, the housing price is occurred difference. The purpose of study was to analyze the influence of various factors of housing price. Also, this study tried to predict real estate market and to establish previous effective real estate policy. In this study, we analyzed the differences of housing price determinants about apartment developments between the north and south of the Han river, and found the important factors that affect the housing price using Structural Equation Modeling(SEM). As a result of this study, the older the buildings are, the more the housing price and the housing price rising ratio have increased, in Gang Nam area. This reason is that these have large possibility to be reconstructed and many convenient facilities, in this area. In the case of Kang Buk area, the increase rate of housing price are so low that they couldn't take effect on the housing price and they were declined. So to speak, constructing the infrastructure which takes effect on the increase rate of housing price is very urgent.

• 컴퓨터교육학회논문지
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• 제13권4호
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• pp.41-50
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• 2010

국내외에서 이루어진 기존의 인터넷 중독 검사에 대한 연구는 다양하며 방대하지만, 대부분의 연구가 중독도 검사를 위한 항목추출이거나 항목들을 이용한 중독도 분석이었지 항목간의 분석을 통한 차별화는 이루어지지 않았다. 본 논문에서는 리즈렐과 데이터마이닝 기법을 이용하여 Young의 인터넷 중독 검사방법을 고찰하고 문제점을 지적한 후, 검사 방법에 대한 대안을 제안한다. 이를 위해 Young의 척도를 이용하여 청소년 440명을 대상으로 설문을 실시하고, 요인분석을 통해 Young 척도의 문제점을 분석한다. 또한, 데이터 마이닝 알고리즘인 J48 및 PART를 이용하여 설문문항들 중에서 인터넷 중독도를 구분 지을 수 있는 항목들을 선별하고 이를 기반으로 인터넷 중독 학생들을 진단하고 처방하는데 활용하는 방법을 제안한다.

• 정보보호학회논문지
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• 제25권2호
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• pp.411-421
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• 2015

최근 빠르게 발전을 이룬 ICT (Information and Communications Technologies) 기술과 IoT (Internet of Things) 기술이 융합되어가고 있다. 그에 따라 ICT 환경에서 발생하였던 보안 위협들이 IoT 환경에서도 이어지고 있다. IoT의 사물로 간주되는 차량에 있어 보안 위협은 재산피해와 인명피해를 가져올 수 있다. 현재 차량 보안에 대한 대비는 미흡하고, 차량 자체에서 스스로 위협을 감지하고 대응하는 것에는 어려움이 존재하는 실정이다. 본 연구에서는 차량에서의 이상징후 탐지를 위한 의사결정 프레임워크를 제안하고, 이를 통해 IoT 관점에서 발생할 수 있는 차량 내 위협 요소들은 어떤 것이 있는지 알아보고자 한다. 차량을 대상으로 하는 공격에 대한 위협 요인과 위협 경로, 공격 형태 등을 인지하는 것은 자가 점검 기술과 디바이스 제어 공격에 대한 신속한 대처에 앞서 차량 보안 이슈를 해결하기 위한 전제가 될 것이다.

• 대한가정학회지
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• 제45권4호
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• pp.113-122
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• 2007

The purpose of this study was to investigate weight control and the relative influence of individual variables affecting children's attempts to control weight. The study subjects were 319 elementary school children. First, the average body height and weight of the children who participated in this study was somewhat larger in boys and similar in girls, as compared with the normal body shape of Korean children. More boys were classified as overweight than girls, based on BMI. Both boys and girls were dissatisfied with their body shape, and especially the girls showed higher dissatisfaction rate than the boys did. Almost half of the children were concerned about weight control and girls had higher concern than boys. Of the children, 38.8% had controlled their weight; however there was no difference between their sexes. There were significant differences between children who had and had not experienced weight control in the following variables: stress caused by obesity, body satisfaction, BMI, subjective body shape perception and concern about weight control. Therefore, discriminant function analysis was performed to determine the discrimination of these variables between the two groups. From the analysis results, the most critical factor was BMI in the boys and concern about weight control in the girls. This finding should be reflected in the design of weight control programs for children i.e., boys should be encouraged to perceive correctly their own body shape and to control weight by maintaining a well-balanced diet and moderate exercise over a long period of time, rather than by skipping meals, while girls should be inspired with sound values and attitudes regarding their body shape, rather than provided with the concrete information on how to control weight.

• 복식
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• 제24권
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• pp.217-233
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• 1995

The ultimate purpose of this study is to suggest the most effective marketing strategy for the clothing consumer market based on the new generation consumer's clothing selection behavior analysis. In this thesis, it is appempted to make a progress in the new gen-eration consumer's clothing life style types, in clothing purchase behavior analysis among the clothing life style, and also in the marketing strategy for marketers. The subjects selected for the final analysis are 412 the new gerneration women of age 20 thru 34 in seoul and satellite town area. Data were processed the spss package program. As for the analytic method, factor analysis, clustering analysis, XCross-tubulation, F-test with ANOVA, frequency and percentage were applied in the survey. The major findings are as following : life style is classified into four types : The characteristic fashion-directory type(25.7%) ; The reason traditional type(9.0%) ; The sen-sitivity fashion-following type(11.0%) ; The community brand-conscious type(54.3%). 2 Clothing life style types characteristic of the new generation consumer proved that clothing life style types are a significant difference according to the life style, the fashion consciousness and the average monthly spend-ing on clothing. 3. There is an important discrimination according to the clothing life style types in their clothing purchase behavior such as infor-mation usage, clothing choice criterion and brand loyalty. 4. Based on the result of our analysis and the review of literature, the marketing strategy is suggested that characteristic and new design development is efficient way to consumer's purchase need. Therefore apparel industary which pursue an added value must frame marketing strategy on the basis of the target consumer's sensitivity characteristic according to the life style and fashion consciousness.

• Biomolecules & Therapeutics
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• 제21권6호
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• pp.470-475
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• 2013

Ultraviolet (UV) radiation is a major environmental factor that leads to acute and chronic reactions in the human skin. UV exposure induces wrinkle formation, DNA damage, and generation of reactive oxygen species (ROS). Most mechanistic studies of skin physiology and pharmacology related with UV-irradiated skin have focused on proteins and their related gene expression or single-targeted small molecules. The present study identified and analyzed the alteration of skin metabolites following UVB irradiation and topical retinyl palmitate (RP, 5%) treatment in hairless mice using direct analysis in real time (DART) time-of-flight mass spectrometry (TOF-MS) with multivariate analysis. Under the negative ion mode, the DART ion source successfully ionized various fatty acids including palmitoleic and linolenic acid. From DART-TOF-MS fingerprints measured in positive mode, the prominent dehydrated ion peak (m/z: 369, M+H-$H_2O$) of cholesterol was characterized in all three groups. In positive mode, the discrimination among three groups was much clearer than that in negative mode by using multivariate analysis of orthogonal partial-least squares-discriminant analysis (OPLS-DA). DART-TOF-MS can ionize various small organic molecules in living tissues and is an efficient alternative analytical tool for acquiring full chemical fingerprints from living tissues without requiring sample preparation. DART-MS measurement of skin tissue with multivariate analysis proved to be a powerful method to discriminate between experimental groups and to find biomarkers for various experiment models in skin dermatological research.