• Proceedings of the IEEK Conference
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• 2005.11a
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• pp.1287-1290
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• 2005

This paper represents an conceptual design for the on-line EMS(Energy Management System) database using object-oriented concept. By using object-oriented concept, EMS can meet on-line control operation.

• Proceedings of the IEEK Conference
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• 1998.10a
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• pp.621-624
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• 1998

This paper presents a new configuration of dielectric bandpass filter using the comb-line filter design theory. This filter is composed of a homogeneous dielectric monoblock $(\varepsilonr=35.5)$ with two metal post and a dielectric sheet $(\varepsilonr=9.8).$ In this structure, the RF leakage is suppressed without other shield housing. For the fabricated filter, insertion loss value in the passband region was 0.9dB(Max.) and return loss value was 19dB(Min). Also, this filter has a attenuation pole in the stopband.

• Proceedings of the IEEK Conference
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• 1998.10a
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• pp.395-398
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• 1998

In this paper, the design, fabrication, and experiments of linearly tapered slot antenna(LTSA) with uniplanar microstrip-to-coplanar strip(CPS) line transitions are presented. The effect of reducing and increasing with taper width G teper longth 1, and opening angle are also mesured at 10 GHz.

• The Proceeding of the Korean Institute of Electromagnetic Engineering and Science
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• v.5 no.2
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• pp.39-45
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• 1994

Analysis and design procedure for three-line three port bandpass / bandstop fliter consisting of three line microstrip structures is reported. The measured results for experimental three port structure is shown to be in good agreement with theoretical poedictions.

• Journal of information and communication convergence engineering
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• v.7 no.4
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• pp.453-458
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• 2009

This paper presents two methods of designing a Broadband Impedance Matching (BIM) circuit for maximizing a power line communication (PLC) equipment (or Modem) signal injection into its load at any power line connection port. This optimal (BIM) circuit design is achieved in two phases: Butterworth gain function and Tchebycheff gain function. According to the comparison of simulation and practical results, the performances of two gain functions on BIM are discussed.

• Journal of the Korean Institute of Telematics and Electronics A
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• v.29A no.2
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• pp.33-40
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• 1992

The design method of signal delay line system using indirect frequency synthesizer is presented. The variable signal delay line system with 2[nsec] step of delay time at center frequency 60[MHz], bandwidth 500[KHz] and range 5.24-5.81[x10S0-6Tsec] is designed and fabricated. The results were met with good characteristics to be variable delay time of average 2.01[nsec] per step.

• Journal of the Korean Institute of Telematics and Electronics A
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• v.29A no.8
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• pp.10-17
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• 1992

A new line code design technique based on the BUDA(Binary Unit DSV and ASV) concept is introduced. The new line code called MB34 and designed by this new technique is of the minimum bandwidth, dc-free, and runlength limited. To confirm the performance of the new code, its power spectrum and eye pattern are obtained, wherein spectral nulls at dc(f=0) and Nyguist frequency (f=1/2Ts) are clearly identified. It is also discussed how the transmission errors can be detected by monitoring the DSV, the ASV, and the runlength.

• Journal of the Korean Society of Clothing and Textiles
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• v.20 no.1
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• pp.3-18
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• 1996

The aim of this study is to clarify the style of fashion design which represented three types of erotic mood. And it will have its significance in finding out some standards which call be applied to practical designing. The positive analysis on this study is composed of two parts-the analysis of fashion journals and of questionaire. Analysis of fashion design is to seize and to compare frequence of 17 style of fashion design in the delivery of erotic mood in $\ulcorner$Mot$\lrcorner$ and $\ulcorner$Vogue$\lrcorner$. The questionaire is to investigate preference and inclination of perception in erotic mood of 17 style of fashion design by sex and age. The results were as follows: 1) In $\ulcorner$Vogue$\lrcorner$ than in $\ulcorner$Mot$\lrcorner$ erotic style ate actively made use of. 2) To suggest style of fashion design expressed 3 moods of erotic can be applied to practical designing is as follows. Expression of 'romantic & mysterious' mood is desirab]e exposed body line in motion style in male, twenties and thirties. Expression of 'seductive h stimulating' mood is desirable bosom exposure, leg exposure, adhere of bosom, adhere of waist, seen-through leg, slit, exposed body line in motion style in male and twenties and seen-through bosom, adhere of hip, slash style in male. This mood is desirable exposed body line motion style in thirties and forties. Expression of 'sensuous & attractive' mood is desirable bosom exposure, leg exposure, adhere of bosom, adhere of waist, seen-through leg, slit, exposed body line in motion style in male and twenties and adhere of hip, seen-through bosom, slash style ill male. And this mood is desirable adhere of waist, arm exposure style in female and adhere of waist, exposed body line in motif style in thirties and forties.

• The Journal of the Korea institute of electronic communication sciences
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• v.14 no.2
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• pp.289-296
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• 2019

Recently, the development of smartphone camera technology enables to shoot high quality video. In order to utilize these techniques in various ways, it is necessary to be able to transmit signals to an external device such as a external display. The transmission performance of the video signal is determined by the loss of the transmission line and the length of the wiring. In this paper, we propose the HDMI transmission line design criterion according to the wiring length changed according to the smartphone design and the surface roughness amplitude of the printed circuit board conductor wiring material. Also, we verified the proposed design criteria for the actual smartphone design. The proposed design criterion can be applied to various application fields including high-speed signal transmission line besides mobile application.

• The Research Journal of the Costume Culture
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• v.4 no.3
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• pp.373-381
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• 1996

Draping design system organized by European about 13C has been developed greatly for a long while, but for the purpose of the practical use the Dress form similar to human body has been needed. In order to make three-dimensional effect as fitting Muslin ot the Dress form. the Basic lien has to be established in Muslin and Dress form each. At this time, Shoulder-blade level is indicated from various angles : measure down 10cm from the back neck point, a quarter of the back neck point to the waist lie, the half-way point between neckline and bust line, measure down 41 inches from the back neck line, measure down 3 inches from the top edge of the muslin at center back and cross mark for neck line, and so forth. This study established the Basic line through the two ways of them (B.N.P∼B.L/2, B.N.P∼W.L/4), did tight fitting to the 5 kinds of Dress forms which ar normal type in the drop value(the difference between hip circumference and bust circumference), and acquired Basic Pattern. After the experiment, fitness are throughly investigate by statistical analysis of measurements. As a result, this study finds out that fit is proper when shoulder blade level is situated on a fourth of the back neck point to the waist line and a quarter point between back neck point and waist line, and waist dart is situated on the back center line and princess line.