• The Transactions of the Korean Institute of Electrical Engineers P
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• v.61 no.2
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• pp.82-86
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• 2012

Recently, due to the expansion of electric power demands, nonlinear load such as converters and inverters connected to the electric power distribution system, and extensive application of harmonic generation sources with power electric devices, disturbance of the electric power system and its influences on industries have been continuously increasing. In this research, power quality was analyzed for 11 extra-high voltage customers by considering voltage unbalance condition, power factor, THD and TDD. This research will be utilized as fundamental data to improve power quality for power utility.

• International Journal of Human Ecology
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• v.1 no.1
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• pp.15-35
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• 2000

A time management strategy would reduce the time conflicts from competing time demands of family and business, and contribute to the quality of life of family members in family business. Data were collected on 259 families where one family member was both a household manager and business manager. Household time management strategies and business time management strategies were compared. The individual performing two roles used different time management strategies in household and in business, and they were more likely to use time management strategies in business than in the household. Multiple regression analyses suggested that time management strategy contributed to increased quality of life of dual managers.

• Proceedings of the Korean Society of Computer Information Conference
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• 2015.07a
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• pp.125-126
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• 2015

This study analysed the needs of the elderly in computer education, their preference and demands for computer education to enhance the quality of information welfare for the elderly, and presented a computer education model for higher quality information welfare for the elderly to maximize the effect of computer education. For this study, variables were selected from previous studies and by the researcher to present a computer education model for the elderly.

• Proceedings of the Korean Society for Quality Management Conference
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• 2006.04a
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• pp.210-215
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• 2006

The environment of the enterprise changes very quickly, and the customers' needs ate becoming to be various. Only the enterprise can be securing a competitive high position if the enterprise knows well with the customer. Therefore, the enterprise must be confronted appropriately which grasps the requirement of he customer. The Kano presents quality dualism, it complemented a different meaning problem point and the Timko presented the customer satisfaction coefficient. But the model of the Timko which committed the error as well that does not consider the indifferent quality of he Kano. Hence, with this research hat proposes the method of analyzes the client demands accurately through Modified CS-coefficient. Then, apply the method on to the multiplex theater.

• Animal Bioscience
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• v.34 no.9
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• pp.1425-1438
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• 2021

Maintaining a high level of beef consumption requires paying attention not only to quantitative traits but also to the quality and dietary properties of meat. Growing consumer demands do not leave producers many options for how animals are selected for breeding and animal keeping. Meat and carcass fatness quality traits, which are influenced by multiple genes, are economically important in beef cattle breeding programs. The recent availability of genome sequencing methods and many previously identified molecular markers offer new opportunities for animal breeding, including the use of molecular information in selection programs. Many gene polymorphisms have thus far been analyzed and evaluated as potential candidates for molecular markers of meat quality traits. Knowledge of these markers can be further applied to breeding programs through marker-assisted selection. In this literature review, we discuss the most promising and well-described candidates and their associations with selected beef production traits.

• Proceedings of the KIEE Conference
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• 2001.07b
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• pp.1070-1072
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• 2001

In recent years, customers and power supplies are interested in power quality. Demands of customers are change from standard quality of distribution power system to various high quality of distribution power system. so, it is necessary to apply power quality compensator, in our project, we develop the power quality compensator of 150kVA which compensates power factor and voltage sag, interruption. it is very frequently occurred power qualify problems[1,2]. As a series and shunt compensator, power quality compensator consists of two inverters with common do link capacitor bank. It compensates the current quality in the shunt part and the voltage qualify in the series part. In this paper we present the design and control algorithm of power quality compensator. As a control algorithm is implemented by digital controller, we consider sample-and-hold of signals. In this simulation, we use EMTDC/PSCAD V3.0 software which can simulate instantaneous voltage and current.

• Proceedings of the KIEE Conference
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• summer
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• pp.351-353
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• 2004

In recent years, customers and power supplies are interested in power quality. Demands of customers are change from standard quality of distribution power system to various high quality of distribution power system. so, it is necessary to apply power quality compensator. in our project, we develop the UPQC(Unfied Power Quality Compensator of 45kVA which compensates power factor and voltage sag, interruption. it is very frequently occurred power quality $problems^{[1-3]}$ As a series and shunt compensator, UPQC consists of two inverters with common do link capacitor bank. It compensates the current quality in the shunt part and the voltage quality in the series part. In this paper, we present the design and control algorithm for 4SkVA UPQC system. As a control algorithm is implemented by digital controller, we consider sample-and-hold of signals. In this simulation, we use EMTDC/PSCAD V3.0 software which can simulate instantaneous voltage and current.

• Journal of the Korea Furniture Society
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• v.26 no.1
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• pp.71-76
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• 2015

It is important thing that air quality affects human health. And It is more important thing that Indoor Air Quality more affects human health than Outdoor Air Quality. The cause of that is indoor air pollutants are more absorbed than outdoor air pollutants. By the way, in case of Multi-use facility for example office, department store, school etc., it has a feature that there are more people than any other buildings. therethrough, effects of Indoor Air Quality of Multi-use facility affect more people's health than Indoor Air Quality of any other buildings. However, in multi-use facility, specifically retail store, chemical treated materials are used for interior finishing, showcase finishing and product finishing because esthetic element is more added for detention of customer. Consequently, in place where demands brisk sales, possibility that indoor air is polluted by VOCs is high. This study considered retail store's Indoor Air Quality. as result of experiment, figure of department store's air pollution exceed about 5~20 times in guideline of multi-use facility's Indoor Air Quality in any kind of shop of department store (guideline : $500{\mu}g/m^3$).

• Journal of Nutrition and Health
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• v.37 no.8
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• pp.701-711
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• 2004

This study investigated elementary, middle, and high school teachers' satisfaction, nutrition education, workload changes, and demands in school foodservice programs (SFPs). The subjects were 630 teachers at 12 elementary, 9 middle, and 9 high school within the nation. Ninety five percent of the teachers felt that there was a necessity for SFPs. Middle school teachers (MTs) and high school teachers (HTs) thought that it was necessary in order to reduce the students' burden of carrying lunch boxes. The teachers were relatively satisfied with their school's foodservice management types, food distribution types, meal quality, and sanitation. Elementary teachers (ETs) and HTs had a higher satisfaction than MTs. Teachers thought that SFPs had positive effects on their students' nutrition and health, enhancing desirable eating habits, and socialization. ETs had more positive opinions than MTs or HTs. ETs and MTs thought that their workload had been increased by SFPs more than HTs, but they had relatively positive opinions on the workload change. ETs taught nutrition and health through SFPs more frequently than MTs or HTs. Many teachers thought that there was a lack of appropriate teaching materials. Some teachers thought that the problems in the present SFPs were: a lack of cafeteria facilities, poor quality of meals, and management of leftovers. Their demands for SFPs were a improvement of meal quality and the establishment of cafeterias. In conclusion, MTs had more negative opinions than ETs or HTs. ETs perceived that SFPs had a function as an important educational activity as well as the supply of nutritional meals. MTs or HTs tended to consider only a meal. It is suggested that teachers, especially MTs and HTs, should modify their attitudes and recognize the educational functions of SFPs. Training programs should be developed under government auspices.

• The Journal of Asian Finance, Economics and Business
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• v.9 no.9
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• pp.121-129
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• 2022

For decades, Vietnam has been concerned about the need to improve human capital to meet the demands of a knowledge-based economy. The analysis of the country's current situation of human resources in terms of structure, quantity, and the quality shows that Vietnam's human resources are under-qualified compared with other countries in Southeast Asia, such as Thailand, Malaysia, and Singapore. This poses significant challenges to the economy because the development of human resources is always an urgent requirement for a new economy with fast growth, like in the Vietnamese economy. To attract foreign investment capital and develop more strongly, human resources in Vietnam must have progressed in both quality and quantity. Therefore, the author conducts this study to find out the factors that directly affect the quality of human resources, thereby evaluating and offering appropriate solutions to improve the quality of current human resources in Vietnam. More specifically, through quantitative analysis and survey with data about 4000 employees in Ho Chi Minh City, the author has discovered that there are four important factors that make the difference in labor quality, which are age, gender, marital status, and education level of the workers.