• 환경위생공학
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• 제22권3호
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• pp.51-64
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• 2007

This research, selected for 40 classrooms(20 old, 20 new) in chungnam area from June 22 to July 19 and from November 21 to December 30, 2003, in order to study of Recognition of Indoor Air Quality of Indoor Environment at School. we used Questionnaire for 193 health teachers, 41 teachers, and 1,359 students. The results of study are as follows. 1. To the question 'Currently Were you damage caused by classroom air?', showed that worry class teachers more than students with 43.9% of class teachers, 35.9% of health teachers and 23.5% of students. 2. To the question 'What would be an efficient way to manage classroom sanitation?', 50% of class teachers, 40.5% of health teachers and 47.4% of students wanted 'installation of air purifier.' 3. To the question 'How are you getting information about indoor air pollution?', showed that all of 3 groups get information through on TV. 4. According to survey, Health teachers who act as health supervisors appeared to have more prior knowledge air quality than class teachers and students. The results of this research show insufficient understanding of health risks from indoor air pollution, and shows possible health problems to students from school indoor air pollution. Therefore, these results suggested that a logical and systematic education program for students about the importance of indoor air quality should be carried out.

• 한국안전학회지
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• 제18권4호
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• pp.136-142
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• 2003

This study is planned to investigate the attitude toward the safety and health management of contractor company. Under the contract based production system, all of activities including safety and health management in the contractor company are depended upon the contract. How to make contract influence the worker's health of contractor company. Worker's health of contractor company can be protected by efforts of company of contract-out and contractor company, especially their safety managers. The modelling of the effective safety and health management system for contractor company should consider the need of safety manager of each company and employer of contractor company. Data is collected from safety managers of 3 contract out compaines as electronic and electrical manufacturing industry and 55 safety manager, 57 employers of their contractor compaines using self administered survey with structured questionnaire. The most of all respondents want to support from the contract out compaines. The most important items supported from contract out company is the information based on the safety information network between each company. Safety manager and employer of contactor company also itemized safety education and training in the supporting system from contract out company. These results can be generalized to survey on the other industries.

• 한국치위생학회지
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• 제6권1호
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• pp.79-91
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• 2006

Through the investigation and analysis for awareness about Tooth Bleaching treatment for general adults, to rethink the real ideas of Tooth Bleaching which adults has already had and to find the method for generalized Tooth Bleaching, this study made a survey about General Awareness and Common sense for Tooth Bleaching and Oral Health Knowledge and Generalization Methods for 570adult citizen in Busan from 1th August to 10th September. The obtained results were as follows 1. Tooth Shade self contentment was found low, self-discontent respondents were 73.5% and self-content respondents were 26.5%. 2. Tooth Bleaching recognition was found high, as for the recognition period, between 2 and 5 years is 65.5% and as for the recognition route, 33.9% were through broadcast medium. 3. General knowledge for Tooth Bleaching was found low as 2.34(1.12) of 5 score and it is similar to ages and occupations(pE0.001, pE0.05). 4. Tooth Bleaching treatment method appears Home Bleaching and In-Office bleaching was 73.5% and 26.5% respectively. The other side medical institution chosen for Tooth Bleaching treatment appears dental hospital or dental clinic and Home bleaching was 75.6% and 12.1% respectively. 5. To generalize the Tooth Bleaching Care, recommendations of oral health care team and oral health education and development of information data also need to be performed.

• 가족자원경영과 정책
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• 제13권4호
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• pp.73-93
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• 2009

The purpose of this study was to examine retirees' attitudes towards change of living standards. The data were drawn from the 2007 Korean Retiree Survey, as carried out by the Korean Investors Education Foundation. The major findings are as follows: 1) Some retirees were not well-prepared for retirement, i.e., they lacked financial consultation, had low personal financial literacy, and lacked sufficient wealth. Retirees suffered from health difficulties, loneliness or a sense of alienation, family conflict, or lack of pastimes. 2) Certain groups recognized the change of living standards for retirees as either positive or negative. Retirees who recognized the change of living standards as negative were not well-prepared for retirement, had low personal financial literacy, and lacked sufficient wealth. They also suffered from health difficulties, loneliness or a sense of alienation, family conflict, or lack of pastimes. 3) There was a strong probability for the negative recognition group not to be well-prepared for retirement, having low personal financial literacy, and lacking in sufficient wealth. There was a strong probability for the negative recognition group to suffer from health difficulties or lack of pastimes. Based on these findings, this research suggests that retirees should prepare for retirement with a positive attitude.

• 대한한방부인과학회지
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• 제23권2호
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• pp.131-144
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• 2010

Purpose: There has not been decisional consensus in the concepts and the ways of postpartum cares between Western and non-Western cultures though the importance of postpartum period has been emphasized by the multitude of health professionals. In this study, we investigated the differences in recognition concerning postpartum care among Koreans, Korean residents in America, and Americans (hereafter, K, KA, A). Methods: We used questionnaire of women who had given birth from last 6 weeks to less than 13 years. The women consisted of three groups;104 K, 44 KA, and 44 A. Results: In the perception survey concerning postpartum care, every three group thought that postpartum care was important. However, there were differences in understanding how it would affect women's health, and what they did in the period. K significantly agreed with the content and the importance of postpartum care. The investigation concerning seven categories of postpartum care showed that K group performed the 6 categories except consuming medication beneficial for the postpartum care. KA group performed in a low rate and A group performed two categories in a significantly low rate two categories; avoiding cold stimulation and keeping the body warm. Conclusion: Based on this study, it should be suggested that there were common points and differences among the recognition concerning postnatal care in three groups. Therefore, health professionals make efforts in understanding diversities on postnatal care and providing the adequate services reflecting each mother's needs and recognition.

• 보건행정학회지
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• 제20권2호
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• pp.89-103
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• 2010

Purpose : This study is descriptive research that confirms regularity of breakfast and related factor. Methods : The duration for investigation took place from April to May 2007 and 550 middle students of 6 middle school who lived in G city participated in investigation. The contents of the questionnaire consist of general trait, diet trait, life pattern and health state. Results : The significant variables of regularity of breakfast habit have some gender differences. For male students, recognition of importance of the breakfast, breakfast preparer, spare time before attendance and one's parents' breakfast habit are significant variables. On the other hand, for female students, recognition of importance of the breakfast, breakfast preparer and an income level are significant variables(p<.05). For male students, the cross ratio has 3.52 for recognition of importance of breakfast, 2.72 for one's parents' breakfast habit, 2.05 and 3.13 when one's mother prepare breakfast. For female students, the cross ratio is 3.24 score when one's mother prepare breakfast. Conclusion : The regularity of breakfast habits is related to recognition of importance of breakfast, mother's breakfast preparation and his or her parents'breakfast habit. It is necessary to propose the importance of breakfast to improve the regularity of breakfast habit and concern of parents for breakfast.

• 한국치위생학회지
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• 제14권6호
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• pp.871-879
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• 2014

Objectives: The purpose of the study was to investigate the appropriate management and implementation of the oral malodor prevention for the general people. Methods: A self-reported questionnaire was filled out by 420 subjects in Seoul and Gyeonggi Province from March to October, 2013. Except 19 copies, 401 copies were analyzed. The instrument of subjective oral malodor awareness and status was adapted from Yoon and Youn and partly modified. The questionnaire consisted of general characteristics(4 questions), oral malodor awareness(3 questions), oral malodor related characteristics(3 questions), self-diagnostic test of oral malodor(5 questions), and subjective oral malodor and health status(3 questions). Self-diagnostic test of oral malodor was score as yes(1 point) and no(0 point). The subjective oral malodor and health status scoring was done by Likert 5 scale. Cronbach alpha was 0.713 in the self-diagnostic test of oral malodor. Results: The self-recognition rate of oral malodor was 0.8%. When the level of oral malodor increased to 1 point, the self-test of oral malodor increased as the rate of 0.033(p<0.05). Conclusions: There existed no close correlation between subjective recognition of oral malodor and oral malodor self-test. Therefore, oral malodor should be measured by an expert counseling to make an accurate diagnosis. It is important to establish the appropriate oral malodor prevention program for the general people.

• 대한지역사회영양학회지
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• 제4권1호
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• pp.95-102
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• 1999

This study used questionnaires to investigate the safety awareness for imported foods by 365 male and female adults in Taejon. The results of the study were as follow : By factor analysis, the subjects' behaviors and awareness of the imported food was grouped into 3 factors such as 'health and quality factor', 'purchasing factor' and 'contamination factor'. 'Health and quality factor' and 'purchasing factor' were not recognized negatively by the subjects, moreover' contamination factor' was recognized very highly. The subjects' concern and worry about the imported food was also very high. The marital status, education level, nutriton knowledge adn recognition level of contamination by pesticides and heavy metals of foods partially affected the recognitio level of imported foods. The major selection criteria of imported food were distribution period(36.3%), price(28.8%) and purchasing experience(17.3%). The imported food mean discrimination score was 8.4±3.1 out of 13. The worst discriminatio score was red pepper. The subjects' experiences with imported foods selection affected the most instead of education level or nutrition knowledge. The higher discrimination score group more negatively recognized imported food and contamination recognition level was higher whereas the lowerdiscrimination score group more positively recognized the purchasing frequency and with to buy more easily. But both groups desired to reinforce contamination control. The better discrimination score of imported food pooring recognized sanitation concerns(p<0.05), quality(p<0.05), cooking convenience(p<0.01), desire for more variety(p<0.05), and the higher contamination recognition level(p<0.05) and desire to reinforce contamination control(p<0.01).

• Smart Structures and Systems
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• 제29권1호
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• pp.129-140
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• 2022

The effectiveness of system identification, damage detection, condition assessment and other structural analyses relies heavily on the accuracy and reliability of the measured data in structural health monitoring (SHM) systems. However, data anomalies often occur in SHM systems, leading to inaccurate and untrustworthy analysis results. Therefore, anomalies in the raw data should be detected and cleansed before further analysis. Previous studies on data anomaly detection mainly focused on just single type of data anomaly for denoising or removing outliers, meanwhile, the existing methods of detecting multiple data anomalies are usually time consuming. For these reasons, recognising multiple anomaly patterns for real-time alarm and analysis in field monitoring remains a challenge. Aiming to achieve an efficient and accurate detection for multi-type data anomalies for field SHM, this study proposes a pattern-recognition-based data anomaly detection method that mainly consists of three steps: the feature extraction from the long time-series data samples, the training of a pattern recognition neural network (PRNN) using the features and finally the detection of data anomalies. The feature extraction step remarkably reduces the time cost of the network training, making the detection process very fast. The performance of the proposed method is verified on the basis of the SHM data of two practical long-span bridges. Results indicate that the proposed method recognises multiple data anomalies with very high accuracy and low calculation cost, demonstrating its applicability in field monitoring.

• 대한지역사회영양학회:학술대회논문집
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• 대한지역사회영양학회 2004년도 추계학술대회
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• pp.95-95
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• 2004