• 한국지역사회생활과학회지
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• 제12권2호
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• pp.105-117
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• 2001

The purpose of this study is to figure out the actual situation of possession and use of traditional living appliances in the rural area, so as to provide plans for preservation and succession of traditional living appliances. The data were collected from 200 households in 8 rural areas classified by geographical zone. Traditional living appliances were divided into clothing.food.housing living appliances, play tools, and the others. As a result, the degree of using the traditional living appliances is 46.5%(in respect of "often use"). The need for preserving and using the traditional living appliances in modern society was 68.5%(in respect of "a little need"). The level of preservation and use of the traditional living appliances was relatively low except for food living appliances. In conclusion, the suggested directions for developing traditional goods to preserve and succeed traditional living appliances are as follows; ${\circled1}$ Developing traditional living goods peculiar to a certain locality ${\circled2}$ Developing goods with various uses; display, ornament, living appliances, memorial, etc. ${\circled3}$ Developing goods on the process and technique of making traditional living appliances. ${\circled4}$ Providing information and education on excellance of traditional living appliances.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2005년도 전력전자학술대회 논문집
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• pp.227-229
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• 2005

교류전동기의 벡터제어 구동 시스템에서 상전류 측정 오차는 토크 및 속도 제어 성능에 직접적인 영향을 주는 요소로서, 맥동 없는 토크 및 속도 제어를 위해서는 상전류의 정확한 측정이 필요하다. 상전류 측정 오차는 오프셋(Offset) 변동에 의한 오차와 스케일(Scale) 차이에 의한 오차로 분류할 수 있으며, 각각의 오차 성분은 고정자 전기 주파수의 1배 및 2배에 해당하는 토크 맥동을 야기 한다. 본 논문에서는 교류전동기 벡터제어 구동 시스템에서 상전류 측정 오차에 의한 토크 맥동을 저감시킬 수 있는 새로운 알고리즘을 제시하며, 시뮬레이션 및 실험을 통해 제안된 방식의 타당성을 입증한다.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2009년도 추계학술발표대회 논문집
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• pp.168-173
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• 2009

The purpose of this study was to analyze behavioral patterns of elderly residents and to identify the characteristics of using furniture and home appliances by elderly-headed households. For this purpose, field studies that included observation and open-ended interview were conducted with 52 households. The data was analyzed with frequency, chi-square test by SPSS 14.0 for windows. The major findings of this study were that: 1) Elderly households had more sitting-down style furniture which was a traditional living mode than western style furniture. 2) They experienced inconvenience to use home appliances that were not designed for the aged. 3) Their behavioral patterns were related with family type and income.

• 한국주거학회논문집
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• 제21권1호
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• pp.31-42
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• 2010

The purpose of this study was to analyze behavioral patterns of elderly residents and to identify the characteristics of using furniture and home appliances by elderly-headed households. For this purpose, field studies that included observation and open-ended interview were conducted with 52 elderly-headed households. The major findings of this study were as follows: elderly-headed households need home appliances with lighter body, lower capacity and simple functions. Furniture for elderly people should be designed to minimize the inconvenience of using western style furniture, also the behavior patterns which are important to the elderly like taking medicine have to be considered. And it is necessary to design furniture and equipments properly to prevent accidents happened in housing. Lastly, because the elderly relies heavily on watching TV, it will be desirable to apply TV-friendly devices such as home networking and home automation. Research results will be useful information on product design to reflect characteristics of elderly and follow-up studies associated with each furniture and appliances and specific living behavior are needed.

• 한국디자인학회:학술대회논문집
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• 한국디자인학회 2004년도 춘계 학술발표대회 논문집
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• pp.88-89
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• 2004

• 한국주거학회논문집
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• 제10권1호
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• pp.21-35
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• 1999

The purposes of the study were: 1) to classify and describe causes of producing wasted furniture and household electric appliances by consumers, 2) to identify the influence of variables on causes of producing wasted furniture and household electric appliances and experience of consumer's recycling behaviors, and 3) to introduce the ways of activating recycling in wasted furniture and household electric appliances which suggested by consumers. 1,132 housewives living in Seoul, Sungnam, and Choongjoo were used as a final sample of the analysis. Data were collected using a self-administered survey. The result of the study indicated the major variable which affects producing wasted furniture and household electric appliances was the perception of recycling. Also, the level of consumers' recycling behavior in furniture and household electric appliances was very low and age and housing type were the major variables which affect consumers' recycling behavior. Finally, the implications and recommendations for consumers, enterprises, and society were suggested.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2008년 추계학술발표대회 논문집
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• pp.407-412
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• 2008

The purpose of this study is to find out the preference and the opinion of feminine seniors on the life support appliances(video phone, medication dispenser, activity monitor and sleep monitor). The appliances may be improved reflecting the result of the preferred functions and designs. The respondents were 141 feminine seniors of 65 years & older, living in Ulsan city or Cheongju city, Korea. Following is the result. 1) All the responses answered that the medication dispenser, video phone and activity monitor, sleep monitor are useful appliances. 2) All the seniors expressed prefer to function of the appliances, and were highly concerned about the price, safety and convenience. 3)The preferred designs were (1) white or red standing medication dispenser,(2) wall-mounted video phone working by voice, (3) metal activity monitor sensor like white or yellow bracelet.

• 대한전기학회논문지:전기기기및에너지변환시스템부문B
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• 제51권11호
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• pp.616-621
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• 2002

With biological effects by ELF (Extremely Low Frequency) magnetic field generated from power system, the transient magnetic field from electric appliances is a major issue presently. Because the transient magnetic field induces higher current than the power frequency field inside living bodies, transient magnetic field exposure has been much focused. In this paper, it is shown that transient magnetic field from electric home appliances can be characterized as magnetic dipole moment. In this method, the dipole moment vector is assumed by allowing an uncertainty of 6dB in the estimated field. A parameter M that represents biological interaction was applied also. The proposed method was applied to 7 types of appliances (hair drier, heater, VDT, etc.) and their equivalent magnetic dipole moment and harmonic components were estimated. As the results, the useful data for quantifying magnetic field distribution around electric appliances were obtained.

• 대한전기학회논문지:전력기술부문A
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• 제54권1호
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• pp.31-37
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• 2005

With biological effects by ELF(Extremely Low Frequency) magnetic field generated from power system, the transient magnetic field from electric appliances is a major issue presently. In this paper, we measured magnetic field distributions around electric appliances in view of harmonics and analyzed them by the use of an equivalent magnetic dipole moment method. This method was applied to 19 types of appliances, and their equivalent magnetic dipole moments and harmonic components were determined. The results show that this method is applicable to many appliances and the higher frequency magnetic field may induce higher current inside living bodies.

• KIEE International Transaction on Electrical Machinery and Energy Conversion Systems
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• 제4B권4호
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• pp.196-200
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• 2004

This paper presents a method to reduce the commutation torque ripple in a position sensorless brushless DC motor drive. To compensate the commutation torque ripple considerably, the duration of commutation must be known. The proposed method measures the duration of commutation from the terminal voltage of the motor, calculates a PWM duty ratio using the measured commutation interval to suppress the commutation torque ripple, and applies it to the calculated PWM duty ratio only during the next commutation. Experimental results show that pulsating currents and vibrations are considerably reduced when the proposed method is applied to a position sensorless brushless DC motor drive for the air-conditioner compressor.