• 한국ITS학회 논문지
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• 제18권5호
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• pp.142-155
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• 2019

본 연구는 택시 GPS 프로브 정보를 수집하여 링크 결손 방지와 링크 진출 입 시각을 판단하여 표준링크기반의 통행속도 정확도를 향상시키기 위한 시스템 개발을 목적으로 진행되었다. 이를 위해 표준링크기반 맵매칭과 개별차량 통행속도를 산출하고 이를 이용해 서비스링크 평균 통행속도 산출을 위한 5단계 과정으로 구성된 프레임워크와 알고리즘을 제시하였다. 그리고 테헤란로와 학동로 두 곳의 현장 조사를 실시하여 본 논문에서 제시한 방법에 의한 결과를 검증하였다. 현장조사 전체시간 기준으로, 통행속도 편차는 0.2km/h와 0.6km/h, 정확도는 99%와 96%, 그리고 MAPE(Mean Absolute Percentage Error)는 1%와 4%로 나타났다. 결과적으로 표준링크를 사용하지 않는 기존 방법론보다 우수한 정확도를 보였다.

• 서비스연구
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• 제12권2호
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• pp.94-105
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• 2022

본 연구는 탈산업화 사회의 관점에서 서비스 디자인 및 제품 서비스 시스템(PSS)의 차이점에 대한 이론적 개념을 명확히하고 새롭게 통합된 디자인 전략을 제안하는 것이 주요 목적이다. 서비스 디자인은 기존 서비스를 개선하거나 혁신하고 지속적인 탐색과 반복 과정에서 생가는 문제를 해결하는 사용자 중심 디자인 접근 방식이다. 그러나 PSS는 기업을 위한 혁신적인 비즈니스 전략으로서 고객에게 제품과 서비스의 통합 기능을 제공하고 시스템 프로세스를 최적화함으로써 기업의 경쟁력을 높이는 것이 주요 목적이다. 본 연구는 문헌조사 방법을 통해 서비스 디자인과 PSS의 개념과 연구 현황, 디자인 방법을 정리하였다. 그리고 디자인 진행 과정에서 서비스 디자인과 PSS의 차이점을 비교하여 정리하였다. 본 연구에서 제안하는 최종 내용은 서비스 디자인 개념을 효과적으로 구현하기 위해 사용자 경험을 PSS의 설계 프로세스에 통합하여 시스템화한 프로세스를 사용자의 요구에 맞게 제안하였다.

• 한국과학교육학회지
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• 제23권6호
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• pp.671-683
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• 2003

초등교사들의 과학교수에서 교과교육학지식과 이와 관련된 유의미한 예측변인을 조사하였다. 과학 교과교육학지식을 측정할 수 있는 도구로 초등교사들의 과학교수에서 교과교육학지식-교수법지식, 표현지식, 내용지식, 평가지식, 학생지식, 교육과정지식-을 조사하였다. 예측변인을 조사하고자 교사들의 학력, 경력 년 수, 과학전담교사 선택여부, 과학교수 자기효능감, 과학교수 결과기대감, 과학 교수법, 과학교수태도에 관한 문항을 함께 조사하였고, 이를 위하여 332명의 초등현직교사가 참여하였다. 분석방법은 피어슨 상관계수와 중다회귀방법을 사용하였고, 그 결과는 교사들의 과학 교과교육학지식의 모든 영역에서 유의미한 예측변인은 모두 과학교수 자기효능감, 과학교수법, 과학교수에 대한 태도, 교사들의 경력 년 수로 나타났으며 모두 양의 방향을 가졌다. 이는 과학교수에 대한 자신의 능력에 신뢰감이 있는 교사일수록, 과학교수태도가 긍정적일수록, 지시적인 교수법보다 비지시적인 교수법을 사용하는 교사일수록, 또한 교사들의 경력 년 수가 많을수록 6개 영역의 교과교육학지식이 모두 많은 것으로 결론 짓는다. 경력 년 수가 적은 예비교사나 초임교사들의 교과교육학지식을 개발하기 위한 교육방안을 구성할 때 교과교육학지식을 설명하는 위와 같은 예측 변인들의 긍정적인 측면과 함께 고려되는 것이 바람직하다.

• 수산경영론집
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• 제22권2호
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• pp.53-74
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• 1991

Interest on ocean environment has increased with the development of industrialized activities. Public marine resorces are defined broadly to include fish stocks, beaches, marine waters, recreational fishing, biota, waterfowls, shorebirds, seabirds and marine mammals But, it is not easy to analyze compensation for injury to publicly owned marine resources because the claimants do not exist clearly and the economic methodology of damage on public goods is not developed fully. This paper introduces basic idea of welfare economic theory and environmental legislation to the research question : How the economics and law can be applied to the case of damage on publicly owned marine resource. The paper discusses the concepts of willingness to pay (WTP) and willingness to accept (WTA). It is accepted generally that WTA is correct concept of welfare change in the case of damaged public goods. Four methods (compensating variation, equivalent variation, compensating surplus, equivalent surplus of measuring welfare changes are compared. Compensating variation(CV) is the best measure of welfare changes are compared. Compensating variation(CV) is the best measure of welfare changes caused by environmental damage. Vartia (1983) showed CV could be measured from the ordinary demand function using the differential equations. This paper also provides an overview of the emerging U.S. and Korea legal system for compensation for natural resource damages, with particular emphasis on U.S. legal system under Comprehensive Environmen-tal Response Compensation and Liability Act (CERCLA). These regulations are to include two different types of standardized procedures for assessing natural resources injury : Type A or simplified assessment techniques for small releases ; and Type B protocols that would include detailed and extensive assessment methodologies for major releases. Type A procedures are specified by Natural Resources Damage Assessment Model for Coastal and Marine Environment (NRDAM/CME) of the U.S. CERCLA provides a legal 'legitimization for the use of economic-based nonmarket valuation in the courts and have introduced appropriate and accurate nonmarket valuation methods based on willingness to-pay for damage assessment. By briefly reviewing economic theory and environmental legislation, we hope to help provide a better understanding of the compensation process and the economics of publicly owned marine resources in the U.S. and to integrate the economics and law of natural resources valuation into a single comprehensive package in Korea.

• 한국환경보건학회지
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• 제49권4호
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• pp.228-235
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• 2023

Background: As the public interest in chemical substances found in daily life has increased, environmental health education content has been developed and related studies have been conducted. However, there is still insufficient research on methodologies for environmental health education. Objectives: This study aimed to explore risk communication strategies by focusing on N-nitrosamines in rubber balloons. Methods: In this study, two different health messages were composed: a gain-framed message emphasizing the advantages of practicing the health behavior and a loss-framed message emphasizing the negative consequences of not practicing the health behavior. The effect of the message containing risk information was evaluated by measuring the health beliefs and health behavior potential for female caregivers. As the Environmental Health Act defines a child as "a person under the age of 13," a total of 131 women with children under the age of 13 were studied. Results: The age, awareness, and interest of the participants in the gain frame group and these in the loss frame group were similar. In terms of message framing effect, the gain-framed message was more effective in terms of health belief and potential health behavior than was the loss-framed message. As a result of an independent t-test, among the six variables of health belief model the message effect was statistically significant at the level of p<0.05 in three variables: perceived severity (t=2.287, df=129, p=0.024), self-efficacy (t=2.123, df=129, p=0.036), and health behavior potential (t=2.094, df=129, p=0.038). Conclusions: This study presented a direction for effective environmental health education by studying the effects of risk communication messages based on scientific evidence. It is necessary to extend the scope of environmental health education research by expanding research into various household products.

• Journal of Korean Biological Nursing Science
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• 제23권4호
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• pp.287-297
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• 2021

Purpose: This study aimed to evaluate the correlation and agreement of physical activity (PA) between data obtained from wearable Actigraph devices and self-reporting questionnaires, and to investigate the relationship between psychological state (depression, anxiety, and fatigue) and PA. Methods: A descriptive study was conducted using physical measurements and surveys. PA was measured through both the International Physical Activity Questionnaire (IPAQ) and the Actigraph GT3X+ device. The demographic characteristics of the subjects, as well as their depression, anxiety, and fatigue scores, were collected with structured questionnaires. The Spearman's rank correlation coefficient and the Bland-Altman plot method were employed. Results: Data from 36 healthy adults were analyzed. The overall levels of PA measured using the IPAQ and the Actigraph were 1,891.69 MET min/week and 669.96 MET/day, respectively. Total levels of PA did not show a significant correlation between the two measurement methodologies. However, the moderate-intensity PA resulting from the IPAQ scores showed a significant positive correlation with the light-intensity PA recorded by the Actigraph. The Bland-Altman plot analysis demonstrated that the levels of PA as measured by the two different methods did not match. In addition, PA measured using the Actigraph showed a significant negative correlation with depression and anxiety whereas PA measured using the IPAQ showed a significant positive correlation with fatigue. Conclusion: The conclusion of this study is that the data obtained from the subjective self-reporting questionnaire and the wearable Actigraph do not correlate or match in healthy adults. Future research should investigate the relationship between depression and PA intensity through the Actigraph, or other wearable devices equipped with smartphone apps.

• 복식문화연구
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• 제30권5호
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• pp.732-751
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• 2022

In this study, we aimed to apply 3D digital printing to basic clothing production and to propose futuristic fashion design and production methods that correspond to contemporary trends. Literature on future trends, dynamism, mechanical aesthetics, and experimentalism were used to define the characteristics of "futurism." Based on theoretical considerations about futurism, we created fashion designs using 3D digital printing methods. These designs were produced using the aesthetic characteristics of futurism; the 3D digital clothing program; and application of digital printing technologies to futuristic silhouettes, colors, and materials. The results were as follows: First, with the application of futurism as a fashion motif, we pursued collaboration between artistic work and fashion, and we then explored the possibility of creative expression. Second, harmony between achromatic and chromatic colors revealed even better dynamism and activeness, and the potential to express dynamism was observed. Third, with the development of fashion design processes based on 3D digital printing methodologies, it was found to be possible to eliminate the limitations of time and space, solve problems related to limited budget or communication, and positively influence the fashion industry by enhancing convenience and diversity. Fourth, with the development of fashion design that utilizes digital printing, it was found that problems related to time, space, or limited budget were able to be solved, as compared to the use of traditional printing and image reproduction.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume I
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• pp.500-503
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• 2006

To adjust the discrepancy between Light Detection and Ranging (LIDAR) strips, previous researches generally have been conducted using conjugate features, which are called feature-based approaches. However, irrespective of the type of features used, the adjustment process relies upon the existence of suitable conjugate features within the overlapping area and the ability of employed methods to detect and extract the features. These limitations make the process complex and sometimes limit the applicability of developed methodologies because of a lack of suitable features in overlapping areas. To address these drawbacks, this paper presents a methodology using area-based algorithms. This approach is based on the scheme that discrepancies make complex the local height variations of LIDAR data whithin overlapping area. This scheme can be helpful to determine an appropriate transformation for adjustment in the way that minimizes the geographical complexity. During the process, the contour tree (CT) was used to represent the geological characteristics of LIDAR points in overlapping area and the Iterative Closest Points (ICP) algorithm was applied to automatically determine parameters of transformation. After transformation, discrepancies were measured again and the results were evaluated statistically. This research provides a robust methodology without restrictions involved in methods that employ conjugate features. Our method also makes the overall adjustment process generally applicable and automated.

• 복식문화연구
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• 제31권6호
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• pp.720-737
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• 2023

This study aims to merge Picasso's expressive elements and deconstructive fashion's formative traits, proposing an upcycle fashion design that fuses artistic and philoso-phical aspects. The analysis of Picasso's Cubism identified qualities like liberating revolution, fluidity of vision, geometric reducibility, complex symbolism, and creative imitation. The analysis of Derrida's deconstructionism revealed expressive traits: uncertainty, intertextuality, différance, and dis-de phenomenon. An upscale fashion design was developed based on six Picasso works featuring women. The design was created using the fashion design software CLO 3D and integrated clothing waste and scrap fabrics as materials.The results are as follows. First, upcycle fashion was viewed from a new perspective based on Picasso and Derrida's values. This perspective suggested creating better ethical values by upholding environmental protection in novel ways that overcome limitations rather than destroy existing values indiscriminately. Second, upcycle fashion design methodologies were derived from various perspectives utilizing formative features of Picasso's works and specific expressive features of deconstructed fashion. Third, the direction of mitigating waste and pollution from clothing production and transportation was revealed by making clothes in a virtual space using the CLO 3D program. This study contributed to obtaining various methods for developing upcycle fashion designs using own methods of Picasso and Derrida to diversify the approaches of upcycling, which is relatively stagnant in disassembling.

• 대한예방한의학회지
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• 제17권1호
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• pp.27-50
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• 2013

Objectives : The aim of this study is to analyze the research trend focusing on well-being studies in Korea. Through this study, the researchers attempt to explore the research trends of the Yangseng(養生) and well-being in Traditional Korean Medicine. Methods : Well-being as a key word was searched on representative domestic databases of articles. The researchers collected the articles of journals published from 1980 to 2012. Finally 2,413 articles of well-being were selected. Results : Domestic studies of well-being had been increased steadily since the 1990s and they were greatly increased after the 2000s boom of well-being. Before 2000s, the mainstream of well-being studies was to analyse the correlation among the variables associated with quality of life in medicine. After the boom of well-being, the number of researches has been increasing significantly, since 2000s. Various methodologies of well-being studies(especially related various goods and services) have also been developed in the field of academia. Recently the concept of well-being has been evolving into LOHAS, wellness, healing, well-dying and etc. Conclusions : In order to handle the new wave of society and medicine, new health concept of Traditional Korean Medicine should be developed through Korean unique ideas of Yangseng.