• Journal of the Korean Society for Geothermal and Hydrothermal Energy
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• v.16 no.1
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• pp.17-25
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• 2020

Ground-coupled heat pump (GCHP) systems have become an efficient alternative to conventional cooling and heating methods due to their higher energy using efficiency. Although some experimental and simulation works related to performance analysis of GCHP systems for commercial buildings have been done, relatively little has been reported on the performance evaluation of GCHP systems for school buildings. The purpose of this simulation study is to evaluate the performance of a hypothetical GCHP system for a school building in Seoul. We collected various data of building specifications and construction materials for the building and then modeled to calculate hourly building loads with SketchuUp and TRNSYS V17. In addition, we used GLD (Ground Loop Design) V2016, a GCHP system design and simulation software, to design the GCHP system for the building and to simulate temperature of circulating water in ground heat exchanger. The variation of entering source temperature (EST) into the system was calculated with different prediction time and then each result was compared. For 20 years of prediction time, EST for baseline design (Case A) based on the hourly simulation results were outranged from the design criteria.

• The Journal of Industrial Distribution & Business
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• v.11 no.8
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• pp.7-19
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• 2020

Purpose: Prior studies rarely investigated the effects of the Word of Mouse (WoM) information on consumers' motivation and willingness to purchase a product. Furthermore, few scholars have studied how word-of-mouth information works and they fail to find consistent results. Research design, data and methodology: This study uses a multivariate regression model to investigate the influence of WoM on consumer attitudes and consumer decision-making. It categorizes the quality of WoM into source level and acceptance level, to analyze its influence from a new perspective. A total of 400 surveys were completed, resulting in 336 usable questionnaires for analysis. It was collected in 14 cities from all regions in China. This study constructs a theoretical model of WoM influence on consumers' purchase willingness based on a systematic review of the related literature on WoM quality, perceived value, customer trust, and consumers' purchase willingness. Results: Empirical results reveal that the Internet WoM (consumer's source level and acceptance level) indirectly affects consumer behavior by influencing consumer attitudes. Conclusions: This study provides practical significance and value for merchants to develop better WoM marketing and to establish the reliability of WoM websites. Companies should consider online WoM from the perspective of consumers, thereby improving existing marketing strategies.

• Research in Community and Public Health Nursing
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• v.21 no.4
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• pp.398-408
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• 2010

Purpose: The purpose of this study was to describe and understand elementary school health teachers' role perception in their own perspectives. Methods: Data were collected from three focus groups composed of five participants for each group. Each focus group had an interview for two and a half hours on the average. The main question was "What is your perception on the roles of health teachers in elementary schools?" Qualitative data from transcribed notes and field notes were analyzed using qualitative content analysis. Results: Five main roles were identified from the participants. The participants perceived themselves as 'an expert of health education in school and community', 'a health service provider for school members', 'a health guardian for school members, the coordinator of healthcare related works in school, and the leader of school health. Conclusion: The participants have multiple role identities, which are very important for health management of school members. And the roles such as an expert of health education and a leader for school health are recently emphasized. The findings of this study can provide useful information to design orientation programs for newly appointed health teachers and continuing education programs for enhancing role performance of health teachers in elementary schools.

• Journal of Ginseng Research
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• v.22 no.2
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• pp.82-90
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• 1998

In order to stabilize the price of fresh ginseng by extension of seasonal variation and marketing structure, and to reduce the cost of production by works of intensive and short term, studies were carried out. As fresh ginseng of 4 years old by the MA and CA was stored for 12 week at 4$^{\circ}C$, samples were collected after every 1, 2, 3, 4, 6, 8, 12 weeks for processing red ginseng. Color and Sensual characteristics on ginseng steamed red for the quality evaluation are summarized as follows. For the time course of storage with red ginseng, which was processed from fresh one after various treatments, L and b values were decreased, however a value was increased. In particular, absorbance was step-wisely increased. Turbidity was somewhat increased, and non-treatment of preservative were shown 2 times higher of absorbance. Extraction ratio of ethanol-soluble extractives slightly increased by the preservation methods, and as storage period was passed. CA storage and preservative treat merit versus MA and non-preservative treatment gave much stability in ginseng quality. In the sensual characters, sour taste and sweet taste were increased, but fresh taste and rice scorched taste were decreased. Bitter taste was not much changed until end of storage. CA was shown smaller differences than MA in the pH change. Addition of preservative extended the storage time.

• Management & Information Systems Review
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• v.6
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• pp.89-115
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• 2001

Recently, administrators of Korean university are struggling to survive against rapidly changing environment. But, the customer service of university organizations are generally recognized inferior to those of business service. Thus, the measuring of service quality is the beginning of works to improve customer service in university. SERVQUAL is known the most generalized scale to measure service quality. After SERVQUAL was published as a measure of perceived service quality by PZB(1985), several arguments have been made against its validity and the other measures have been suggested by Tears(1993), Cronin and Taylor(1992). Therefore, this paper reviews about SERVQUAL controversies. Also, this paper analyzed the dimensions of service quality and its relevant concepts. For this empirical study, 288 respondents drawn from university student in Pusan area are collected and 5 hypotheses are analyzed by using regression analysis. The results of empirical study are as follows. (1) three dimensions of service quality(specialty, reliability, tangiables) are perceived from factor analysis. (2) dimensions of service quality are related to the overall service quality and customer satisfaction, especially specialty is varified as the most important dimension. (3) customer satisfaction affects repurchase intention and word-of-mouth effect positively. In conclusion, however this study have a few limitations about sampling and questionnaire, offers some strategic directions for improving the service quality of university organizations.

• KIPS Transactions on Software and Data Engineering
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• v.4 no.12
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• pp.585-588
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• 2015

The technical challenge of 3D image display using the wireless sensor were applied to variable areas and scopes. This techniques need to very accurate location and speed informations and recognitions to moving objects. The tracking challenges of the moving objects location that combined 3D location and speed sensor were applied to sports and healthcare areas. This areas seek to the accuracy and collections and tightly related to image display and analysis techniques. In this paper, We developed the 3D motion display that can be monitor moving objects on the 3D virtual space. For this works, we constructed the database that collected informations through 9-axis sensor and demonstrated the result of 3D motion display on the Window based environments.

• The Journal of Industrial Distribution & Business
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• v.14 no.3
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• pp.19-26
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• 2023

Purpose: There is little emphasis on alternative forms of communication in psychotherapy, thus leaving a gap in research on the impact and effects of alternatives such as using artistic expressions. The current research, therefore, seeks to address the gap by investigating the effect of psychological counseling using Art Therapy on improving workers' job efficiency. Research design, data and methodology: The present author collected topic related to prior studies in terms of psychological counseling, art therapy, and employee job efficiency. And then, the author conducted clear procedure of the screening to eliminate inappropriate previous works including conference papers and dissertations so that this research could obtain only journal articles and books which have been proven by high degree of reliability and validity. Results: This research has concluded that psychological counselling using art therapy is pertinent to improving the worker's job efficiency in various ways, addressing properly mental health issues ranging from small to complicated or acute issues, thus promoting the well-being of employees to work at their optimum or best possible conditions. Conclusions: Psychological counseling using art therapy improves self-confidence, esteem, and awareness. Further, it enhances their social skills, expression capability, and general work ability. Elsewhere it improves coping with pain and reduces stress and depression.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2021.05a
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• pp.313-314
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• 2021

An old building over 30 years old continue to increase. Therefore, there will be more dismantling of old buildings in the future. Safety management of dismantling works is being strengthened. However, no consideration has been given to the effects of dismantling workers and their residents due to environmental hazards arising from the demolition process. Only spray and dust prevention measures are subject to inspection to minimize dust generation considering civil complaints around the site of dismantling work. In this paper, residential buildings, which account for the largest proportion of old buildings, were collected and identify total airborne bacteria and floating fungi among environmental hazards caused by non-structural dismantling work. Measurement results showed that workers during dismantling work are working in places with 4.8 times more total airborne bacteria than indoor air quality maintenance standards. Related research is needed for the health of dismantling workers.

• Journal of the Korean Home Economics Association
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• v.39 no.9
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• pp.95-102
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• 2001

The Effects of Self-Esteem and Sociocultural Attitude toward Appearance on Clothing Behavior. The purpose of this study was to investigate to relation between self-esteem and sociocultural attitude toward appearance and clothing behavior i.e. individuality/self expression, body improvement, social approval, sex appeal. Measurements were included Rosenberg's self-esteem, Thompson's sociocultural attitude toward appearance questionnaire and clothing behavior. The data were collected from 498 female university students in Seoul and Kyongki Province. The collection works were undertaken between the 15th of June and 30th of June, 2001, The data were analyzed using factor analysis, reliability test, analysis of variance, and multiple regression analysis. The results of this study were as follows : 1) Three dimensions of sociocultural attitude toward appearance were identified: internalization, social awareness, and concrete awareness. 2) Self-esteem and internalization of sociocultural attitude toward appearance had an effect on clothing behavior i.e. individuality/self expression, body improvement, social approval and sex appeal. Social awareness of sociocultural attitude toward appearance had an effect on body improvement, social approval, and sex appeal.

• Korean Journal of Occupational Health Nursing
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• v.29 no.4
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• pp.316-324
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• 2020

Purpose: This study aimed to identify differences in physical working environments, psychosocial working environments, and health outcomes according to the employment type of delivery workers. Methods: This study was a secondary analysis of data collected from the Fifth Korean Working Conditions Survey (KWCS). Participants were 84 Korean delivery workers. Data were analyzed using the SAS 9.4 Version, χ² test and Fisher's exact test. Results: Statistically significant differences were found according to the employment type of delivery workers (special types, wage) including "noise", "vibrations", "repetitive movements", "supervisor support", "colleague support", "manuals on emotional expression", "existence of trade union, works council or similar body". Conclusion: This study suggests the necessity of improving the working environment and health outcomes of delivery workers belonging to special employment types. In developing these, the laws and systems must be reorganized to enable the recognition of delivery workers as wage workers. In addition, delivery companies should be held responsible for managing delivery workers.