• Journal of Korean Society of Coastal and Ocean Engineers
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• v.26 no.4
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• pp.244-252
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• 2014

EOF (Empirical Orthogonal Function) analysis is applied to investigate the sand movement in Hujeong Beach. For the analysis, the profile data which were observed five times from June 2009 to May 2010 along the 13 baselines were used. To secure the temporal and physical consistency among the 13 profile data, the 13 profile data were combined into one data and using this data the EOF analysis was performed. According to the analysis, the first EOF is related with the mean topography and the second EOF represents the natural variation of sediment migration and the third EOF is related with the along-shore sediment transport arising from storm. The remaining EOFs show no special relation with wave conditions. In conclusion the main factors which are having great effects on Hujeong Beach's sand movement are analyzed as natural variation and along-shore sediment transport owing the wave conditions.

• Journal of dental hygiene science
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• v.15 no.5
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• pp.542-550
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• 2015

The purpose of this study was to examine the relationship between the oral health behavior and oral health belief of transportation workers. The subjects in this study were 270 selected taxi drivers who engaged in the taxi transportation industry in Jeollabuk-do. They were selected by convenience sampling. To determine the influence of their general characteristics and oral health belief on scaling experience and oral health education experience, a logistic regression analysis was made. And a multiple regression analysis was made by selecting general characteristics and oral health behavior as independent variables and by selecting oral health belief as a dependent variable. A statistical package SPSS for Windows ver. 12.0 was employed to make all the statistical analysis. As a result of making the logistic regression analysis, benefit that was one of the subfactors of oral health belief had something to do with oral health education experience, and the subfactors that exerted an influence on scaling experience were benefit, susceptibility and barrier. When the multiple regression analysis was carried out to find out influential factors for oral health belief, monthly mean income had an impact on susceptibility and barrier among the subfactors of oral health belief, and self-rated oral health status affected seriousness and barrier. There were differences among the taxi drivers in oral health belief according to their own characteristics, and oral health belief was linked to oral health behavior. Therefore oral health belief and oral health behavior should be taken into account when it's planned to promote the oral health of taxi drivers.

• Journal of dental hygiene science
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• v.12 no.6
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• pp.624-633
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• 2012

This study was executed to provide the basic data that can be helpful for a program aiming at the enhancement of life quality or establishment of policy related to public health by analyzing the importance of health state among the middle-aged adults when it came to the decision of life quality. For 160 adults who were older than 40 years old, a survey was conducted and the results were derived by using t-test, one way ANOVA, and multiple regression analysis. Followings are the outcome of the study. According to such results, it was known that the level of general life quality and oral health related life quality were shown to be different depending on symptoms of depression and xerostomia. Therefore, it suggests that prevention and early intervention of depression and xerostomia will make a great contribution to improve the life quality among the middle-aged adults.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10b
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• pp.7-9
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• 2004

센서 네트워크의 급속한 성장에 따라 센서 네트워크의 효율적 관리를 위한 다양한 연구가 진행 중이다. 특히, 센서의 저 전력을 위한 다양한 기술들이 개발되고 있다. 본 논문은 센서에 전해지는 다중 연속 질의의 중복 성을 제거함으로써, 센서 네트워크의 효율적 관리를 제공할 수 있는 방법을 제안한다. 다중 연속 질의는 두 가지 단계로 최적화가 이루어진다. 먼저, 다중 연속 질의의 시간 속성 중복을 제거하기 위해 B+tree를 이용해 그룹 핑된다. 그룹 핑된 다중 연속 질의들은 연관 속성의 중복 여부 판단을 통해, 중복 성을 제거하여 재구성 된다. 그러므로 재구성된 다중 연속 질의가 센서 노드에 전해지게 되면, 센서는 중복된 결과를 전송하지 않기 때문에 센서 노드의 불필요한 전력을 낭비하지 않게 된다.

• 한국해양학회지
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• v.20 no.2
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• pp.49-60
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• 1985

The interrelationships between distribution of phytoplankton and hydrographical conditions were studied from December 1983 to July 1984 in Yeongil Bay. The temporal variation of phytoplankton abundance seems to be mainly influenced by the vertical stability of water column and the freshwater run-off accompanied with possible nutrient input. The temporal progression of dominant species shows general succession pattern, especially skeletonema costatum was found a dominant species in each month. Although the differences between concentration of chlorophyll a and abundance of phytoplankton may be caused by cell size variation, during the study period they show felatively good linear manner. The phytohydrographic region based on multivariate analysis reflects the relationships between hydrographical condition and distribution pattern of phytoplankton.

• Sleep Medicine and Psychophysiology
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• v.16 no.2
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• pp.74-78
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• 2009

Objective: It has been reported that the sleep apnea syndrome in the asthmatic patients is prevalent, however, the systematic study in this field using polysomnography has rarely been performed. The aim of this study is to investigate the relationship between the apnea-hypopnea index (AHI) and the pulmonary function in asthmatic children. Methods: This study enrolled 19 male and 12 female asthmatic children aged 6-13 years (average $8.2{\pm}1.7$ years old). Complete overnight polysomnography and pulmonary function test were performed for the participants. Results: Of the 31 asthmatic children, 21 (67.7%) met the diagnostic criteria of the pediatric sleep apnea and the average AHI was $1.7{\pm}1.5/h$. The children with higher AHI showed poorer pulmonary function ($FEV_1$/FVC ratio: p=0.002, $FEV_1$%pred: p=0.047). Conclusion: These results suggest that the prevalence of the pediatric sleep apnea could be very high among the asthmatic children and the severity of the sleep apnea correlates with the pulmonary function. However, the case-control study to compare the AHI between the asthma and control groups is absolutely necessary because few normative data are available for the children.

• Korean Journal of Clinical Pharmacy
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• v.15 no.1
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• pp.41-45
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• 2005

심바스타틴은 cholesterol 생합성 과정에서 속도 조절 효소인 HMG-CoA reductase의 강력한 상경적 길항약으로서 고지혈증 치료에 널리 쓰이는 약물이다. 심바스타틴 제제인 MSD 사의 조코 20 mg정을 대조약으로 하여 시험약인 유영 제약의 엘바스타 20mg정의 생물학적 동등성 평가를 하기 위해 22명의 건강한 지원자를 모집하였다. 지원자를 두 군으로 나누어 2정씩 투여하였고 $2{\times}2$ 교차시험을 실시하였다. 심바스타틴의 혈장 중의 농도를 정량하기 위하여 발리데이션된 LC/MS/MS를 사용하였다. 채혈 시간은 투약 전 및 투약 후 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12 시간에 걸쳐 총 12시점에 걸쳐 시행하였다. 생물학적 동등성을 판정하기 위한 파라미터로 12시간까지의 혈장 중 농도곡선 하 면적 ($AUC_{12hr}$)과 최고 혈중 농도($C_{max}$)를 사용하였다. 12시간 까지의 혈중 농도 곡선 하 면적의 기하 평균은 $17.30ng{\cdot}ml/hr$(시험약)과 $17.35ng{\cdot}ml/hr$(대조약)으로 나타났다. 최고 혈중 농도의 경우 각 각 5.08 ng/ml(시험약)과 5.20 ng/ml(대조약)으로 관찰 되었다. $AUC_{12hr}$의 경우 로그변환한 평균치 차의 $90{\%}$ 신뢰구간이 log0.8510 - log1.1694이었고, $C_{max}$의 경우 log0.8176 - log1.1649로 계산되어 두 항목 모두 log0.8-log1.25이어야 한다는 식품의약품 안전청과 FDA의 기준을 모두 만족시켰다. 이상의 결과를 종합하면 시험약 엘바스타 정 20mg은 대조약 조코정 20 mg에 대하여 생물학적 동등한 것으로 판정되었다.트리머 전기비저항 탐사를 수행하였다. 이를 통해 하저에 케이블을 설치하는 방식에 비해 매우 신속하고 경제적으로 하저에 분포하는 이상대의 분포범위와 발달방향을 규명할 수 있었다.대에 대해 가장 효과적이다. 모델과 현장 적용 결과들을 통해 GRM SSM 방법을 이용하여 불규칙한 굴절면을 가진 지층들에 대해 좀 더 신뢰할 수 있는 정밀한 탄성파 속도를 산출할 수 있음을 보여주고 있다.별한 주의를 기울여야 한다.EX>$\alpha/\beta$=10인 경우 $62.0\~121.9\;Gy_{10}$ (중앙값: $93.0\;Gy_{10}$)의 분포를, ${\alpha/\beta}=3$인 경우 $93.6\~187.3\;Gy_3$ (중앙값=$137.6\;Gy_3$ )의 분포를 보였다. MD-BED $Gy_3$는 직장합병증 발생과의 관계는 통계적으로 유의하였고, 방광합병증과는 유의하지 않았다. 직장합병증과의 연관성은 MD-BED $Gy_3$보다 개별 환자의 직장전벽 총 선량 BED값인 R-BED $Gy_3$가 훨씬 더 높았다. 요도카테터 풍선의 후방지점이 대변하는 방광의 총 선량 BED값인 V-BED $Gy_3$도 방광합병증과 경향성 테스트에서 통계적 유의성을 보였다. 하지만, 어떠한 방사선선량도 골반제어율과 의미 있는 상관관계를 보이지 않았다. 본 기관에서 주치의의 선호도에 따라 강내근접치료가 외부방사선치료의 중간에 시행되는 형태인 샌드위치기법과 외부방사선치료 후반부에 시행되는 순차적 기법으로 구분하였을 때, 두 방식간 치료성적 및 합병증의 차이는 없었다. 총 치료기간에 대한 분석에서는 치료기간이 길어질수록 재발 위험이 커지는 경향을 보였으나, 나이 및 병기, 종양의 크기, MD-BED $Gy_{10}$

• Korean Journal of Psychosomatic Medicine
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• v.12 no.1
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• pp.3-14
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• 2004

In this article, the effects of stress on central nerve system and heart function and the concept of heart rate variability were reviewed. HRV(Heart Rate Variability), the periodical change of the heart rate, is indicated larger in the healthier because they respond flexibly to various sorts of facts influencing on HR. HRV analysis is largely composed of the time domain analysis and the frequency analysis. In the former the flexibility of heart function is analysed, while in the latter autonomic nerve function is examined, which is the degree of sympathetic and parasympathetic nerve activity and the state of balance. Furthermore, existence or nonexistence of disease and/or level of stress can be estimated by measuring the variability and normality of heart rate, and balance of autonomic nerve system, and through HRV biofeedback the symptoms of anxiety disorder or asthma can be reduced.

• Cartoon and Animation Studies
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• s.39
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• pp.157-182
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• 2015

Mr. Folman, an Israeli director, used a highly stylized form of animation in a decidedly adult way to make his documentary about the 1982 war in Lebanon, "Waltz With Bashir," in 2008. After 5 years, he has used another distinctive approach, fusing animation with live action in his latest film, a trippy and surreal undertaking called "The Congress." He dismantled the means through parodies, the core of post-modernism art and built a new meaning to create a unique world view and unique aesthetics. In this study, parodies of the modern concept of post-modernism being used as a major strategy in the creation of art have appeared the four characteristics of post-modern parody: 1) intertextuality, 2) dissolution and fusion of genres, and 3) strengthening of irony, and 4) pastiche. This study is characteristic of post-modern parody that discusses the relevance of contemporary parody and postmodernism being developed by analyzing how they appear on the practical work. Furthermore, through analysis of "The Congress", this study discusses the post-modernist world view and the creative way of creating an experimental art with parody.

• Journal of Internet Computing and Services
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• v.2 no.2
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• pp.71-93
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• 2001

Commonly to design a database system. a conceptual database has to be designed and then it is transformed into a logical database schema prior to building a target database system. This paper proposes a method which transforms a Temporal Entity-Relationship Model(TERM) into a Temporal Object-Oriented Model(TOOM) to build an efficient database schema. I formalize the time concept in view of object versioning and specify the constraints required during transformation procedure. The proposed transformation method contributes to getting the logical temporal data from the conceptual temporal events Without any loss of semantics, Compared to other approaches of supporting various properties, this approach is more general and efficient because it is the semantically seamless transformation method by using the orthogonality of types of objects, semantics of relationships and constraints over roles.