• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 춘계학술대회 논문집 전기기기 및 에너지변환시스템부문
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• pp.124-126
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• 2006

In this paper, a synchronous permanent magnet planar motor (SPMPM) with new permanent magnet array is proposed and the magnetic field distribution is obtained analytically by using magnetic scalar potential. Compared to those of Asakawa, Chitayat and experimental data, the superiority and feasibility of the novel magnet array are verified. The characteristics of the synchronous permanent magnet planar motor with this novel magnet array such as inductance, back-EMF, and force are calculated by analytical method.

• 복식
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• 제50권7호
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• pp.59-74
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• 2000

The purposes of this study were to analyse the written clothing described in the magazine (Yea-Won) and then to review the characteristics of advertising and trends of fashion in Korea for last 10 years of 1955-1965 with a new approach to classify the images of fashion. The results of this study were as follows : 1. The characteristics of fashion advertising during this period indicated design appeals, pragmatic appeals, and image appeals. It also represented intermediate status of modern advertising and publication. 2. The trends of fashion market segmentation could be divided into four types: Fashion which considered seasons and time-place-occasion/ Fashion considered ages, occupations, and body conditions/ Fashion focused on materials/ Fashion with enlightenment, 3. The most frequently used colors were black. navy blue, white, and gray, however, it showed varieties from late 1964. Fashion materials used in clothing were kinds of wools, cottons, synthetic and combined materials. 4. Image appeals of fashion trends could be classified as Active-Country and Romantic-Elegance images.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2002년도 하계학술대회 논문집 A
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• pp.449-451
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• 2002

Sheath circulating current rises from the change of sheath mutual impedance which is caused by imbalanced cable system, and different section length between joint boxes. However, mixed burying typo and imbalance section length take many parts of main reasons of sheath circulating current increment in domestic underground transmission power cables. Therefore, the increment reason and variation characteristics of sheath circulating current is analysed with simulation using EMTP/ATPDraw and measuring data of practical cable system which has a problem of exceeding sheath circulating current in this paper.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2000년도 하계학술대회 논문집
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• pp.831-834
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• 2000

Characteristics of organic light-emitting diodes(OLEDs) were studied with devices made by PECCP[poly(3,6-N-2-ethylhexyl carbazolyl cyanoterephthalidene)] Langmuir-Blodget(LB) films. The emissive organic material was synthesized and named PECCP, which has a strong electron donor group and an electron accepter group in main chain repeated unit. The LB technique was employed to investigate the identification of the recombination zone in the ITO/PECCP LB films/Alq$_3$/Al structure by varying the LB film thickness. PECCP was considered as an emissive layer and Alq$_3$was used as an electron-transport layer. We measured current-voltage(I-V) characteristics, UV/visible absorption, PL spectrum, and EL spectrum of those devises.

• 대한한방소아과학회지
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• 제15권2호
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• pp.121-139
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• 2001

Investigating the past and present literatures of west and east about pediatric constitutions and Dong-Eu-Su Se-Bo-Won $\ll$東醫壽世保元$\gg$, we obtained such conclusions : 1. In ancient literatures about pediatric constitution, physiologic and histologic characteristics are considered as pediatirc constitution. 'Pure Yang(純陽)' 'Yang is overabundant, Yin is insufficient(陽有餘陰不足)' are used for definitions of pediatric characteristics. 2. In recent literatures about pediatric constitution, adding to definitions of ancient constitution, more scientific, objective and rational criterion are intrduced. 3. In Sa-Sang(四象), limits of pediatrics is defined to children below sixteen years. 'Yu(幼)' in Dong-Eu-Su-Se-Bo-Won $\ll$東醫壽世保元$\gg$. 4. In Dong-Eu-Su-Se-Bo-Won $\ll$東醫壽世保元$\gg$, the writings about 'So-Yang-In(少陽人)' is most, those about 'So-Eum-In(少陰人)', 'Tae-Eum-In(太陰人)' and 'Tae-Yang-In(太陽人)' are in sequence. 5. In conclusion, Je-Ma Yi(李濟馬), inventor of Sa-Sang(四象), consider that pediatric constitutions are not different from those of adult.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2004년도 추계학술대회 논문집
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• pp.343-348
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• 2004

Since its foundation of Won-Buddhism in 1916 there established around 500 Temple-Halls in both domestic and overseas areas, and it is a native religion that currently on its development of edification activities. As for Won-Buddhism which being under rapid development likely as such going, together with its expansion of the religious influence, there required more broader spaced grand sanctum at where the large-scaled religious events are able to perform. According to this, Balcony-styled plane form is on increasing trend from the internal plane form of Won Buddhism Sanctum. On such viewpoint, this study hereby intends to grasp the character of room acoustics through on-the-spot survey about the objects of 3 Won Buddhism Sanctums which equipped with mutually different characters of the balconies already built, and willing to furnish the fundamental material which enables to improve acoustic capability when design Won Buddhism Sanctum equipped with balcony in the future.

• Journal of Acupuncture Research
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• 제21권6호
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• pp.233-248
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• 2004

Objective : The purpose of this study is to investigate the mechanism and effect of moxibustion with monkshood cake, slice & black pepper cake. objectively, to be used as the quantitative data through the measurement of temperatqre, and to grasp the thermodynamic characteristics of moxibustion with monkshood cake, slice & black pepper cake. Methods : We have selected of the moxibustion with monkshood cake, slice & black pepper cake. indirect moxibustion. We make a comparative study of the thermodynamic characteristics of moxibustion with monkshood cake, slice & black pepper cake. We examined combustion times, temperatures, temperature gradients in each period during a combustion of moxa. Results & Conclusions : 1. We can design the moxibustion with monkshood cake that it has thermodynamic characteristics of 173sec effective combustion time, $44^{\circ}C$ maximum temperature, $0.22^{\circ}C/sec$ ascending maximum temperature, if we use 3mm thickness or 3mm and below of monkshood cake and the moxa cone is formed the conical shape that the base diameter was 8mm, the height was 10mm, the density was $600mg/cm^3$. 2. We can design the moxibustion with monkshood cake that it has thermodynamic characteristics of 205~271sec effective combustion period time, $44.6{\sim}46.1^{\circ}C$ maximum temperature, $0.18{\sim}0.24^{\circ}C/sec$ ascending maximum temperature, if we use 3mm thickness of monkshood cake and the moxa cone is formed the conical shape that the base diameter was 8mm, the height was 10mm, the density was $480{\sim}720mg/cm^3$.

• Tribology and Lubricants
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• 제27권4호
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• pp.213-217
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• 2011

In this study, friction characteristics using elastomeric actuator with Magneto-rheological (MR) materials are identified. Typically, Magneto-rheological materials are divided into two groups by MR fluid in fluid state and MR elastomer in solid state like rubber. The stiffness characteristics of Magneto-rheological material can be changed as magnetic field is applied. MR fluid has been applied to various industry fields such as to brake, clutch, damper, engine mount and etc. However, MR fluid has been used under the sealed condition to prevent leaking issues. In order to overcome these problems, MR elastomer that has same property as MR fluid has been developed and studied. MR elastomer mainly consists of polymer material such as natural rubber or silicon rubber with particles that can be polarized with magnetic field. And it is called as a smart material since its stiffness and damping characteristics can be changed. In this study, MR elastomer is produced and pin-on-disc tests are carried out to identify the friction characteristics of the material. Several test conditions are applied to evaluate the feasibility to use as a smart actuator in the field of vibration control.

• 한국분말야금학회:학술대회논문집
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• 한국분말야금학회 2003년도 international symposium on advanced powder metallurgy
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• pp.74-75
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• 2003

• 한국반도체및디스플레이장비학회:학술대회논문집
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• 한국반도체및디스플레이장비학회 2002년도 추계학술대회 발표 논문집
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• pp.79-80
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• 2002