• Proceedings of the Korean Society for Agricultural Machinery Conference
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• 2003.02a
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• pp.192-199
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• 2003

원예작물 중 수박은 연간생산액이 고추 다음으로 7000-8000억원에 달하는 중요한 소득 작목이다. 수박의 내부품질요인에는 숙도, 황대, 공동, 피수박 등이 있는데, 한 포장에서 20%이상 피수박이 발생되게 되면 포전매매의 경우 반값으로 전락하게 될 뿐만 아니라 출하하는데도 문제가 될 수 있다. 수박의 내부품질 판정은 오랜 경험이 있는 숙련자들에 의해 수행되고 있지만 주관적인 요소가 개입되어 객관적인 평가방법과는 큰 차이가 있을 수 있다. 이러한 현실을 고려해 볼 때, 경험과 전문기술 없이도 고품질의 수박을 수확ㆍ선별함으로써 소비자에 대한 상품의 신뢰성을 높이고 품질의 차별화로 생산자의 소득증대를 위해서는 비파괴적으로 내부품질을 판정할 수 있는 기술이 시급히 개발되어야 할 것이다. (중략)

• Proceedings of the Korea Multimedia Society Conference
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• 2004.05a
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• pp.810-813
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• 2004

한해 누수로 인하여 많은 양의 상수가 소실되고 있어 국가 재정낭비를 초래하고 있다. 이는 관의 노후화와 지반침하에 의한 파이프의 파손 둥 여러 요인에 의해 발생하는 것으로 누수를 예측하여 탐지하는 것은 매우 어렵다. 현재 누수를 탐지하는 방법은 여러 가지가 있지만 현실적인 제약과 경험자의 주관적인 판단에 의존하기 때문에 정확한 누수 위치를 찾을 수가 없었다. 본 논문에서는 종래의 누수탐지 방법의 단점을 획기적으로 보완하여 지하에 매설된 상수도 관망을 실시간으로 모니터링 할 수 있는 누수탐지 모니터링 시스템을 제안하였다 또한 제안된 시스템을 GIS상에서 실험함으로서 효율성과 정확성을 입증하였다.

• 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.

• Korean Journal of Child Studies
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• v.31 no.3
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• pp.255-272
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• 2010

This study explored pathways from mothers' beliefs to children's subjective well-being through children's private after-school activities and stress levels. A sample of 230 6th grade elementary school students (125 boys and 105 girls) in Seoul completed questionnaires on children's stress and subjective well-being. Their mothers responded to questionnaires on mothers' beliefs and children's private after-school activities. Data were analyzed by means of Pearson's correlation coefficients and multiple regression analyses. Our results demonstrated that mothers' beliefs indirectly influenced children's subjective well-being through both children's private after-school activities and stress levels. Neither children's private after-school activities nor children's stress mediated between mothers' beliefs and children's subjective well-being. Mothers' beliefs also had a direct effect on children's subjective well-being. Significantly, both mothers' beliefs and children's stress played crucial roles in improving children's subjective well-being.

• Journal of the Korea Convergence Society
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• v.9 no.12
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• pp.401-409
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• 2018

The purpose of this study was to examine the oral health care and self-rated health status of adults visiting dental clinics in the region of Busan and influential factors for their dental fear from January to May, 2017, in an effort to obtain some information on how to relieve fear. As for dental fear, adults who were in their 30s, who were homemakers and whose monthly income ranged from 4 to 4.99 million won. In regard to fear according to oral health care, dental fear caused by the treatment avoidance factor was stronger among the adults who didn't receive dental checkups and who brushed their teeth in the wrong way. Dental fear that was attributed to the physiological reaction factor and the stimuli-inducing factor was severer among the adults who didn't receive dental checkups and who had no scaling experience. Overall fear was severer among the adults who didn't receive dental checkups and who changed their toothbrushes every four or more months. The factors that affected dental fear were self-rated health status, self-rated oral health status, gender, age, whether to receive dental checkups on a regular basis or not, and oral health education experience. Therefore in order to alleviate dental fear, self-rated health status should be improved, and the kind of system that encourages regular dental checkups and provides oral health education should be prepared.

• Korean Journal of Cognitive Science
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• v.23 no.1
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• pp.73-95
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• 2012

Two experiments were conducted to verify how the factors of attentional dispersion, reason for waiting, and cue of time flow affect the perceived waiting time. In experiment 1, based on the characteristics of waiting experience that Maister(1985) suggested, levels of attentional dispersion and whether or not offering a reason for waiting were manipulated. Participants estimated elapsed time(the objective time was 10 minutes) using either prospective or retrospective estimation method. Overall results were that they overestimated the elapsed time regardless of the experimental conditions. However, both main effects of the attentional dispersion and the reason for waiting were statistically significant. That is, when attention was more dispersed and when the reason was given, overestimation of elapsed time was reduced. No difference was found between the two estimation methods, and none of the interaction was significant. Experiment 2 was a replication of Experiment 1 except that a cue of time flow was added by using scroll bar on a computer screen. Because it has been suggested that the cue can help us to manage the waiting time and result in differences between the two time estimation methods. The results showed that main effects of the attentional dispersion and the reason for waiting were significant as those in Experiment 1. In addition, main effect of time estimation method and the three-way interaction were also significant. None of two-way interaction was significant. That is, the perceived waiting time is much shorter in the retrospective method, and the effects of the attentional dispersion and the reason of waiting were dependent upon the estimation methods. Both experiments showed that offering a clear reason for waiting is more important than the attentional dispersion in reducing the perceived waiting time. Some implications of these results for the service industry and the future direction of research were discussed in the final section.

• Journal of Industrial Convergence
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• v.17 no.2
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• pp.35-43
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• 2019

The purpose of this descriptive correlational study was to identify the mediated effects of self-leadership on the relationship between subjective health status and living satisfaction of female university students. After collecting data from the 400 female college students at A University in Incheon from November 14 to November 30, 2016, the frequency analysis, t-test, Spearman's rho, multiple regression analysis, and the Sobel test were conducted using the SPSS 21.0 program. The life satisfaction of students was different depending on age of 20, a freshman, experience in part-time jobs and subjective health status. It has been shown that self-leadership is partially mediated in the relationship between subjective health status and life satisfaction. The results of this study could be used as a basic data for increasing interest in subjective health status and for continuing to develop programs related to self-leadership in order to enhance the life satisfaction of female college students.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.9
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• pp.283-290
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• 2020

The purpose of this study was to investigate the potential causal relationship between unmet healthcare needs and metrics related to quality of life. To examine the relationships between these variables, the study conducted an analysis by processing additional irradiated raw materials of the Korean Medical Panel. The metrics related to quality of life included six variables: athletic ability, self-care, daily activities, pain/trouble, uneasiness/depression, and subjective health conditions. Linear regression analysis revealed that the unmet healthcare needs had statistically significant negative effects on all six quality of life variables. A review of the magnitude of the linear regression β values for those variables showed that the relative level of influence on the quality of life variables decreased in the following order: pain/trouble, subjective health conditions, uneasiness/depression, daily activities, athletic ability, and self-care. Based on the results, practical applications related to strengthening working-level links between health and welfare is considered an effective policy response to the continued presence of unmet healthcare needs; such applications could contribute to improving the quality of life of those with unmet healthcare needs.

• The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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• v.10 no.1
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• pp.1-7
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• 2005

Tidal flats have been regarded to carry out transformation and removal of land-derived organic matter, and this purifying capability of organic matter by tidal flats is one of very important reasons for their conservation. However, integral biogeochemical studies on production and decomposition of organic matter by benthic microbes in tidal flats have been absent in Korea, although the information is indispensable to quantification of the purifying capability. Our major goals in this multidisciplinary research were to understand major biogeochemical processes and rates mediated by diverse groups of microbes dominating material cycles in the tidal flats, and to assess the contribution of benthic microbes to removal of organic matter and nutrients in the tidal flats. Our study sites were Ganghwa and Incheon north-port tidal flats that had been regarded as naturally well reserved and organically polluted, respectively. Our research group measured over 3 years primary production, biomass and community structure of primary producers, abundance and production of bacteria, enzyme activities, distribution of protozoa and protozoan grazing rates, rates of denitrification and sulfate reduction, early sediment diagenesis, primary production and respiration based on oxygen microelectrode. We analyzed major features of each biogeochemical process and their interactions. The results are compiled in the following articles in this special issue: An (2005), Hwang and Cho (2005), Mok et at. (2005), Na and Lee (2005), Yang et at. (2005), and Yoo and Choi (2005).

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.473-476
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• 2003

This paper presents a systematic risk assessment procedure with uncertainty modeling for general construction projects. Since the approach is able to effectively deal with all the related construction risks in terms of the assumed probability with conditional probability concept that systematically incorporate expert's experiences and subjective judgement, the proposed methods with uncertainty modeling is able to apply to all the construction projects inherent in lots of uncertain risk events. The fuzzy set theory is adopted to enhance risk assessment to effectively handle the vague and dynamic phenomenon of an event Therefore, the fuzzy-based risk assessment is very useful, for those countries, such as Korea, where objective probabilistic data for risk assessment is extremely rare, and thus the utilization of subjective judgmental data based on expert's experiences is inevitable.