• 대한정형도수물리치료학회지
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• 제18권2호
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• pp.95-102
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• 2012

Background: The purpose of this study was to find out influence of using portable mobile devices in human body. Method: The subjects were consisted of the normal persons (19 males and 20 females). These subjects were consisted of three groups according to test time. The A group (12 persons - 6 males, 6 females) tests 5 minutes, the B group (14 persons - 7 males, 7 females) tests 10 minutes, and the C group (13 persons - 6 males, 7 females) tests 15 minutes. Before test, sight, quickness and balance were measured, after test revision, quickness, balance were measured and checked pain scale. Results: The results were as follows. 1. Sight, quickness and balance were decreased and pains were increased after using portable mobile devices than before using these. 2. According to duration of using the portable mobile devices, sight, quickness and balance was not a statistically significant difference, the entire upper body pain was a statistically significant difference. When viewed as part of the pain, shoulder, lower back, and wrist pain were a statistically significant difference, but the neck and elbow were not a statistically significant difference. 3. The influence of vision according to distance of using Portable mobile devices was no statistically significant difference. In addition, less than 20cm distance using equipment group ("Ga") and the group ("Na") which exceeded 20cm in between the sight were not statistically significant difference, Influence of pain according to distance of using Portable mobile devices we-re no statistically significant differences. Conclusion: Using portable mobile devices affect human body on the elements of the biomechanics.

• 한국컴퓨터정보학회논문지
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• 제25권11호
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• pp.187-193
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• 2020

본 연구는 강도가 다른 인터벌 트레이닝이 체지방량, 유연성, 순발력, 민첩성, 그리고 최대산소 섭취량에 대한 효과에 대해 알아보고자 하였다. 총 30명의 젊은 남성들이 자발적으로 이 연구에 참여했다. 대상자들은 중등도 유산소 운동군과 고강도 인터벌트레이닝군에 무작위로 배분하였다. 운동프로그램은 6주동안 진행하였으며, 각 세션은 주 4회에 50분씩 진행하였다. 고강도 인터벌 트레이닝 군에서 체지방률, 유연성, 순발력, 민첩성 및 최대산소섭취량에서 유의한 차이를 보였고(p<.05), 중등도 유산소 운동은 체지방률, 유연성 및 최대산소섭취량에서 유의한 차이가 나타났다(p<.05). 두 군간의 비교에서는 체지방률, 유연성, 순발력, 민첩성에서 유의한 차이가 나타났다(p<.05). 그러므로 고강도 인터벌 트레이닝은 근골격계의 능력과 순발력에서 젋은 비만 남성에게 큰 도움이 될 것이다.

• 한국산업정보학회:학술대회논문집
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• 한국산업정보학회 2008년도 추계 공동 국제학술대회
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• pp.537-544
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• 2008

The purpose of this study is to find essential delivery service quality elements of internet shopping mall and to investigate the relationship among delivery service quality, satisfaction, trust, and loyalty in the area of internet shopping malls. To do so, theoretical literature review and empirical survey accomplished. The empirical results of this study are summarized as follows. Firstly, accuracy, quickness, safety, information providing, and institutional guarantee have a positive influence on satisfaction. Secondly, accuracy, quickness, information providing, and institutional guarantee have a positive influence on trust. Lastly, satisfaction has a positive influence on trust, and both of satisfaction and trust have a positive influence on loyalty in internet shopping malls. From the analyses of this study, we offer several implications both theoretical and practical perspective.

• 한국전자통신학회논문지
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• 제19권2호
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• pp.371-382
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• 2024

본 연구는 성인남녀를 대상으로 ChatGPT 이용의도에 영향을 미치는 요인을 탐색하였다. 가설을 중심으로 결과를 요약, 제시하면 다음과 같다. 첫째, 인지된 용이성은 인지된 유용성에 정적 영향을 미친 것으로 나타났다. 둘째, 정보 신뢰성은 인지된 유용성에 유의한 영향을 미치지 못하였다. 셋째, 정보제공 신속성은 인지된 유용성에 정적 영향을 미친 것으로 나타났다. 넷째, 인지된 용이성은 이용자 만족에 정적 영향을 미치는 것으로 나타났다. 다섯째, 인지된 유용성은 이용자 만족에 정적 영향을 미치는 것으로 나타났다. 여섯째, 정보 신뢰성은 이용자 만족에 유의한 영향을 미치지 못하였다. 일곱째, 정보제공 신속성은 이용자 만족에 정적 영향을 미친 것으로 나타났다. 여덟째, 이용자 만족은 이용의도에 정적 영향을 미친 것으로 나타났다.

• 한국컴퓨터정보학회논문지
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• 제11권3호
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• pp.133-139
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• 2006

컴퓨터 정보기술의 발달로 멀티미디어 데이터가 급증하고 있다. 특히, 영상검색 분야에서는 영상 데이터의 신속, 정확한 처리 및 분석이 요구된다. 그러나 일반적으로 신속성과 정확성을 모두 보장하는 데는 어려움이 있다. 본 논문은 이러한 문제를 해결하기 위하여 유전자 알고리즘을 이용해 영상의 대표 특징치를 추출하는 알고리즘을 제안한다. 이 알고리즘은 영상이 가지고 있는 대표적인 특징치 뽑아냄으로써 검색의 신속성과 정확성을 보장한다. 영상의 특징으로는 색상과 질감을 사용하였다. 실험결과, 기존의 연구에 비해 제안된 특징 추출법이 더 좋은 정확성을 보임으로서 제안된 방법의 타당성을 입증하였다.

• 한국지진공학회논문집
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• 제24권6호
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• pp.285-292
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• 2020

The methodology classifying structural types of concrete buildings in the existing seismic fragility functions is too simple to estimate the fragility of existing residential buildings and neighborhood living facilities, especially those below five stories. Their structural types are dependent on information contained in the building register such as main use, total floor area, story, permission date, and first story floor area of the individual building. All of this information is not considered for classifying types in the existing functions; therefore, the goal of this study was to suggest a methodology that classifies structural types of concrete buildings by utilizing such information. The results of this study showed that the suggested methodology can classify structural types better than the existing methodology. Nevertheless, there is still a need to simplify the methodology because fragility estimation demands quickness rather than accuracy.

• 한국도서관정보학회지
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• 제26권
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• pp.1-22
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• 1997

[Sinpyon-jejong-kyojang-chonglok] is a bibliography and subject catalog, called [Sokjangkyoung-catalog], which was introduced in Coryo dynasty. It was developed by [Degakguksa Yuichun] in 11th century(1090) and holds an important feature in Korean cataloging history as well as in the world cataloging history as the first [Sokjangkyoung-catalog]. This study investigates the entry description of [Kyojang-chonglok] and analyzes it in the contemporary perspective of Cataloging Rules. The study has found that the [Kyojang-chonglok] Follows the 'title main entry method'. Since the modern a n.0, pproach a n.0, pplies direct method which utilizes title, rather than indirect method which utilizes author name, we could safely assume that [Kyojang-chonglok] follows the modern principles such as standardization of cataloging and unification of bibliographical description. We could also extend our findings to conclude that [Sinpyon-jejong-kyojang-chonglok] created a foundation for modern 'title main entry system' such as ISBD and KCR3. Also, the bibliographical description of [Kyojang-chonglok] meets the conditions of B. S. Wyner, shown in the below. 1) logicality 2) flexibility 3) quickness 4) compactness 5) economic

• 한국건설관리학회논문집
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• 제6권3호
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• pp.167-177
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• 2005

가치공학(Value Engineering, 이하 VE)은 단기간 VE 워크샵을 통하여 분야별 전문가들이 팀을 구성하여 VE 업무 프로세스에 따라 다양한 과업을 수행한다. 그러나 최근까지 VE 워크샵 수행과정에서 활용되는 정보는 다양한 정보의 축적 및 활용방법이 체계적이지 못하기 때문에 VE 팀원들에게 유용하지 못한 실정이다 특히 VE 팀원간 정보의 신뢰성과 신속성, 원할한 의사소통의 장애요인이 되며, VE 워크샵 시간과 비용의 증가를 초래하는 원인이 되고 있다. 따라서 본 연구에서는 이러한 문제들을 해결하기 위하여 효율적 인 VE 정보활용 방법으로써 웹 기술을 이용한 YE 정보시스템의 개념 모델을 제안한다.

• 경영과정보연구
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• 제16권
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• pp.1-35
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• 2005

The Virtual organization is a alternative organization for redesigning the classical organization. With the advantages of the quickness of decision making and also connection with other organization, it can be well prepared for the consumer's need. With recent increased interest in virtual organization, there are many companies that consider the virtual organization as practical use. However, it is still in an early stage of the research and the concept has not been established for the virtual organization. The purpose of this research is to systematize the understanding of the virtual organization for the future organizational model. The differences of existing organizational structure can be compared with these three reasons of practical use for the virtual organization, the development of information technology, the importance of strategic choice and unreliable environment. Also, the framework for the virtual organization can be presented with its profiles. The use of this research can be appeared by analyzing the given framework from the companies that are already made practical application of the virtual organization. For the future, this research will give the direction and its viewpoint how this will be used for achieving the competitive advantage of companies and practical use for actual aspects with the pursuit of this research.

• 한국안전학회지
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• 제31권4호
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• pp.35-41
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• 2016

In order to guarantee the process safety and prevent accidents, the deviations from normal operating conditions should be monitored and their root causes have to be identified as soon as possible. The statistical theories-based method among various fault diagnosis methods has been gaining popularity, due to simplicity and quickness. However, according to fault magnitudes, the scalar value generated by statistical methods can be changed and this point can lead to produce wrong information. To solve this difficulty, this work employs PCA (Principal Component Analysis) based method with qualitative information. In the case study of our previous study, the number of assumed faults is much smaller than that of process variables. In the case study of this study, the number of predefined faults is 19, while that of process variables is 6. It means that a fault diagnosis becomes more difficult and it is really hard to isolate a single fault with a small number of variables. The PCA model is constructed under normal operation data in order to get a loading vector and the data set of assumed faulty conditions is applied with PCA model. The significant changes on PC (Principal Components) axes are monitored with CUSUM (Cumulative Sum Control Chart) and recorded to make the information, which can be used to identify the types of fault.