• 방송공학회논문지
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• 제25권2호
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• pp.218-232
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• 2020

데이터홈쇼핑은 데이터방송기술을 기반으로 기존 TV홈쇼핑, 데이터방송의 상품DB, 그리고 카탈로그 쇼핑의 장점을 결합한 T-커머스 서비스이다. 이러한 데이터홈쇼핑 서비스는 2012년부터 일부 시작되었기에 데이터홈쇼핑 인식에 관한 연구가 심층적으로 이루어지지 않았다. 따라서 본 논문에서는 기존 TV홈쇼핑과 데이터홈쇼핑이 플랫폼 품질, 서비스 품질, 콘텐츠 품질측면에서 어떠한 인식을 나타내고 있으며 차이점은 무엇인지 분석하였다. 이를 위해 데이터홈쇼핑에 대한 이해도가 높은 TV홈쇼핑과 데이터홈쇼핑 업무종사자 140명을 대상으로 설문을 실시하였다. 연구결과, TV홈쇼핑과 데이터홈쇼핑의 플랫폼 품질, 서비스 품질, 콘텐츠 품질의 차이는 유의미하며, TV홈쇼핑의 품질이 더 높게 나타났다. 플랫폼 품질의 경우는 TV홈쇼핑은 5점 척도로 3.75, 데이터홈쇼핑은 2.93으로 나타났으며, 서비스 품질은 TV홈쇼핑(3.60), 데이터홈쇼핑(3.25)로 유의미한 차이를 나타냈다. 콘텐츠 품질의 경우, TV홈쇼핑(3.21), 데이터홈쇼핑(2.82)로 TV홈쇼핑의 콘텐츠 품질이 높게 나타났다. 또한 성별, 연령, 직급, 업무분야의 경우 연령에 따른 플랫폼 품질을 제외하고는 상호작용 효과는 나타나지 않았다.

• 디지털산업정보학회논문지
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• 제9권3호
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• pp.211-221
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• 2013

This study investigated the effect of service quality and using experience on a royalty in a electronic commerce. Expecially, used HTS (Home Trading System of securities companies)as a online service system. HTS (Home Trading System) is a electronic commerce system of securities companies that is a most progressive tool of it. Almost securities companies are offering these typical trading system, because it is a required factor for a competitive position in their compound market. This paper made hypotheses of five cases, and collected some data through survey questionnaire for an analysis of actual proof. For attaining the object of this research, used a structure equation modeling, and found that almost paths of the research model are supported among the service quality, using experience, involvement and royalty. This study could provide academic and managerial implications in a electronic commerce business.

• 가정간호학회지
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• 제6권
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• pp.59-65
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• 1999

In oder to investigate the basic data for the standard of visiting nursing activities and educational program for Public Health Nurses in Health Center in Korea. the health record review carried out regard to visiting nursing services of 131 subjects with visiting nursing care. The results were as follows: 1. Rates of visiting nursing services offered by Public Health Nurse of Health Center(in decreasing order)were health education and disease management(98.5%), activity assess-ment(94.7%), counseling(90.8%), dietary care (61.1%), exercise treatment(60.3%), examination(58.8%), medication(48.9%), referral to hospital(32.8%, vaccination against flu and hepatitis(29.8%), support for welfare and administration(24.4%), position change(9.9%), connection to voluntary services(9.9%), wound dressing(7.6%) and referral for home health care nursing(3.1%). 2. The subjects consisted of 38.2% in male and 61.8% in female. 77.1% of the subjects had no job.

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2005년도 춘계학술발표대회 논문집
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• pp.98-101
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• 2005

The study applied to a smart technology for every filed in the various countries of world is actively progressing. In the field of construction, a home-network market based on the smart technology is getting to occupy a position as a social issue. and lots of construction companies are taking part in the home-network market to take possession of a market and is investing for a marketing and a technical study in abundance. as a result, the concern for Household Housing of a future and for how to apply the material technology is getting increase. In this study, it has a understanding of such a necessity and suggests the research of the room-space Module to apply the smart technology and a prototype of a house as a building device. and it predicts not only the development of the technology but also about how to change the home-space that we live.

• Journal of Power Electronics
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• 제12권1호
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• pp.75-82
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• 2012

Elimination of rotor position sensors mechanically coupled with the rotor shaft is attractive to variable speed drives primarily due to increased system reliability and cost reduction. In this regard, search for a simple and robust position sensorless control has been intensified in past few years specifically for low-cost, high-volume applications such as home appliances. This paper describes a new parameter insensitive position sensorless control for switched reluctance motor (SRM) drives satisfying such a need in this market segment. Two consecutive switch-on times of the controllable switch in hysteresis current control are compared to estimate the rotor position and speed. The proposed sensorless control algorithm is very simple to implement since it does not depend on extensive computation or any additional hardware. In addition, the proposed method is robust in that its dynamic performance is least affected by system parameter variations. The proposed approach is demonstrated on a single-controllable-switch-converter-driven SRM with two-phases that lends itself to a system with low cost and compact packaging which comes close to the intended applications. Analysis and simulation results followed by experimental verification are presented to demonstrate the feasibility of the proposed sensorless control method.

• 대한인간공학회지
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• 제30권5호
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• pp.629-636
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• 2011

Objective: The aim of this study is developing an elderly automatic showering system by optimizing nozzle position and angle of water injection on ergonomics approach. Background: The elderly living in nursing home or hospital were increased by an aging population. Helping the elderly on showering is so hard. In addition, the existing showering/bathing systems are not effective because shower pattern of the elderly and washed range of nozzle were not considered. Method: Firstly, basic specification were determined by anthropometric approach. Secondly, position of nozzle and angle of water injection were determined through observation of elderly behavior on showering. And, finally, they were optimized by washing test and showering simulation. Results: On showering importance of body parts were able to analysis through observation of elderly behavior. The position of nozzle and angle of water injection was able to optimize by showering simulation. The automatic showering system was developed by considering their results. Conclusion: The most important technology of developing a showering system is the determining position of nozzle and angle of water injection, number of nozzle. It was developed by applying its results through user centered-research. Application: The user centered-research of developing products was able to apply directly to develop automatic bath, showering products etc. Further more it was available to apply senior friendly products.

• 전력전자학회논문지
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• 제14권1호
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• pp.82-88
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• 2009

일반적으로 가전기기에서는 재료비와 사용상 제약으로 인해 저가격의 위치센서 또는 센서리스 제어 방법을 사용한다. 기존의 센서리스 기어 방법을 수행할 때 속도와 부하의 변화에 따라 고정자 저항이나 역기전력 상수가 변한다. 따라서, 전동기의 제정수의 변화로 인하여 센서리스 제어시에 위치오차가 발생하게 된다. 본 논문에서는 2개의 홀센서를 사용하여 영구자석형 동기전동기의 센서리스 제어시 발생하게 되는 위치오차를 보상하는 방법을 제안하였다.

• 한국생활과학회지
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• 제19권1호
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• pp.215-225
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• 2010

This study had the purpose of presenting a residential environment solution as a desirable educational environment for middle school students to grow soundly and to achieve proper self-realization while providing basic materials to build up a suitable residential environment by comparing and analyzing what relationships exist between different home backgrounds, residential environments and middle school students' social maturity. This research was conducted from Feb. 11, 2008 to Feb. 13, 2008. The subject of this research was 601 students in 3 middle schools located in Gyunggi-do. The data analyzed used the SPSS 11.5 version. The summary of this study's results is as follows. First, in terms of home background, the higher the parents' educational background and social and economic position, the greater the students' social maturity. Second, in terms of home environment, the more spacious the living space, the better the water and sewage system and rest room, the more convenient the air conditioner and kitchen system, the better the lighting, ventilation, soundproofness, insulation, the less the danger in relation to fire, crime, traffic accidents, disaster, the greater the students' social maturity. Third, in terms of the home environment related to the correlation between the residential environment and social maturity, all areas such as housing facilities, housing structural environment and housing safety showed static correlations and proved that the residential environment has an important influence on social maturity. Accordingly, in order to build up an ideal residential environment, we should make efforts to expand and improve better facilities at home considering privacy, lighting, ventilation, soundproofness, heating etc. and remove unsound factors that obstruct students social maturity and build up clean and safe residential environment with good relations with their neighbors.

• 대한가정학회지
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• 제31권4호
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• pp.1-23
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• 1993

The purpose of this study are to investigate the actual conditions of urban housewive's sex role attitude, the value consciousness of home management and the satisfaction of household work. Further, basic data fro the improvement of the satisfaction of household work and the value consciousness of home management will be produce through grasping the relationship of them. For these purposes, the data are collected by using questionnaire distributed to 394 housewives living in Taegu. The data are analyzed using frequency, pecentile, one way anova, pearson's correlation analysis, simple regression analysis, multiple regression analysis. The results of this research are as follow: 1. Urban housewive's sex role attitude comparatively took the transitional position and the value consciousness of home management was middle. Housewive's satisfaction of household work was generally usual. 2. There were significant differences in the sex role attitude according to housewive's age, educational level, the youngest child's age, durations of marriage. Specially, the variables which significantly affected sex role attitude were housewive's educational level, the youngest child's age. 3. The value consciousness of home management of urban housewives was variable according to housewive's age and educational level, monthly family income, durations of marriage, the youngest child's age, the type of housing, husband's educational level and job. 4. Among the independent variables, the houswive's educational level was variable to have influence on the satisfaction of household work. 5. There were significant differences in the satisfaction of household work according to housewive's sex role attitude. 6. Among the domains of the value consciousness of home management, the value consciousness about family relationships, consuming, educational and leader ship were variable to have influence on the satisfaction of household work.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2004년도 ICCAS
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• pp.1147-1152
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• 2004

Switched Reluctance Motors have an inexpensive, intrinsic simplicity and low cost that makes them well suited to home appliance and office applications. However the motor suffering with necessity of shaft position sensor, lead to non-linearity of operations. Further, the involvement of static converters deteriorates the operational power factor. Implementation of a sensorless algorithm, can remove the need of position sensors. Also, the drive includes a compact power factor control in the input stage by implementing Zero Current Switching Quasi-Resonant Boost Technology. This paper presented, aims at optimized low line current distortion, high power factor, low cost and a shaft position sensorless Switched Reluctance Motor drive.