• Korean Journal of Optics and Photonics
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• v.21 no.1
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• pp.6-11
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• 2010

Fluorescent photopolymer film was prepared with composition containing acrylate monomer, binder, a visible light sensitive photo initiator, and fluorescent anthracene polymer. A fluorescent grating pattern was inscribed on the photopolymer film using a 2-beam coupling method. A 514 nm laser was coupled to generate a beam-interference pattern. A highly fluorescent diffractive line pattern was formed on the fluorescent photopolymer within 30 sec. of exposure. The fluorescence intensity was highly enhanced in the patterned area, possibly due to the change in the environment of the fluorescent polymers by the photo-polymerization of monomers. Under a photo-mask, a gap electrode pattern was formed of fluorescent gratings with a sub-micron scale, which was matched well to the calculated value ($2.5\;{\mu}m$ and $0.6\;{\mu}m$) based on the refractive index of the photopolymer and beam incident angle ($3.4^{\circ}$, $15^{\circ}$) to the photopolymer surface.

• The Journal of the Society of Korean Medicine Diagnostics
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• v.25 no.1
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• pp.72-87
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• 2021

Objectives This is the review on the Jeolgyeong which means diagnosis method of meridian and acupoints. Detecting method of meridian and acupoints under the disease condition using fingertips were more developed in Japan than in China and Korea. This study is the introduction to the Japanese style palpation method on meridian and acupoints. Methods Firstly the textbook 'Acupuncture medicine' published by the committee of Korean professors' association of acupuncture and moxibustion was analyzed. Especially the contents of the palpation method on meridian and acupoints were focused and summarized and secondly the book describing the palpation method on meridian and acupoints was selected, translated and summarized. Results Until now the knowledge on the acupoints reaction depending on the patient's status, the deficiency pattern and the excessive pattern was rarely described in China and Korea. On the contrary, 4 kinds of reactions in the deficiency pattern and 4 kinds of reactions in the excessive pattern were well described in Japanese literatures. Mild touching, mild pinching, rubbing, mild pressing and severe pressing were also described along the meridians. Except the bladder meridian Back Shu points, Yuan points, Luo points, Xi(cleft) points, Front Mu points were depicted as the same as those in China and Korea. For the bladder meridian lines, 4 lines were organized including 2 lines of Hua-Tuo-Jia-Ji-Xue and the middle line between 1st and 2nd bladder meridian line as well as 1st bladder meridian line and 2nd bladder meridian line. Conclusions Detecting meridians or acupoints and using them for diagnosis and treatment is a method used in China, Korea, and Japan. However, detailed descriptions of the method for detecting meridians through palpation are revealed in Japanese books. Palpation methods for diagnosing meridians using touching, pinching, rubbing, and pressing methods are expected to be standardized and systematically learned in Korea.

• Proceedings of the KIEE Conference
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• 2002.07a
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• pp.544-547
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• 2002

In a high power laboratory, artificial lines are used for SLF tests of circuit breakers. The line side PTRV is affected by the stray capacitances of testing and measuring equipment as well as the circuit parameters of artificial lines. The changing pattern of PTRV was examined, and the circuit parameters of artificial line for some examples were compensated using the changing pattern to satisfy test conditions specified.

• Journal of the Korean Society of Clothing and Textiles
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• v.48 no.3
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• pp.563-575
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• 2024

This study analyzed 2D bodice sloper changes according to combinations of the lateral neck and shoulder points of a 3D mannequin's shoulder lines. The relationship between the 3D shape and 2D pattern was analyzed. The shoulder line was set to a default of 1cm in front of or behind the lateral neck point, 1cm in front or behind the lateral shoulder point and 1cm vertically above the lateral neck or shoulder point. When the lateral neck point was moved backward, the front neck depth, front and back shoulder height, and shoulder length in the 3D shape increased, whereas the back neck's depth and width decreased. In the 2D pattern, the back shoulder height decreased. As the lateral shoulder point moved backward, all items of the 3D shape showed little change. However, the front shoulder height for the 2D pattern decreased. Consequently, the back shoulder height increased, and the lateral neck point was raised vertically by 1cm. Meanwhile, only the back neck depth and shoulder length decreased while all other items increased; however, in the 2D pattern, the front neck width and shoulder line showed no notable change. The shoulder point was raised vertically by 1cm, and the front and back shoulder heights of the 3D shape and 2D pattern were decreased.

• Journal of the Korean Society of Costume
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• v.54 no.7
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• pp.27-40
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• 2004

The purpose of this paper is to make it easy to reproduce the Pattern and sewing technique of men's coat in 18th century. which are modified in order to be made readily available in Korean theatre costume. The investigation was performed in three steps. 1st, The papers and records about development and change of men's coats were reviewed. End; The whole process of the way how to make a typical 18th century men's coats were sewn. 3rd ; The modification or revision into the more simplified pattern using by CAD system and sewing technique were suggested in detail. The size of the pattern in the original one, which we chose for this research, was generally small. with the side line being moved back a little. Moreover, arm movements were severely restricted because of the small arm-hole. The problems of original pattern were corrected by making both front and back pattern snug and side line being moved to the front, and making arm-hole wider. In the sewing technique, the simple way how to use of Padding, inter-linings and linings and to create the most noticeable figure of 18th century men's coat. This article may help theatre costume production in Korean performing art.

• Proceedings of the Korean Vacuum Society Conference
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• 2013.02a
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• pp.272-273
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• 2013

Some living thingsuse micro- or nano- structures for living in nature. Scientists and engineers made efforts to mimic them, and they succeeded in making new types of applications. They used 'Namib desert beetle' to self-filling device by moisture harvesting and 'lotus leaf' to self-cleaning device by water repelling. 'Namib desert beetle' and lotus leaf have micro-patterns on their surface, which consists of hydrophobic or hydrophilic materials [1]. Moreover, micro-patterns on the surface make self-filling or self-cleaning property enhanced because of the surface roughness. Surface roughness enhances wettability [2]. Micro-pattern is a significant factor to make the surface be functional, so we want to make new types of functional surface by micro-patterning. In this work,we make several functional micro-patterns (radial, line, and dot arrays) using maskless lithography and analyze the characteristics of each micro-pattern. In order to analyze and understand surface characteristics, micro-patterns with varying sizes are investigated. All experiments are proceeded on mr-DWL5 photo resists coated on silicon wafers in same condition. All the experiments have demonstrated good performances about hydrophobic or hydrophilic property corresponding to their material and structural combinations. In radial micro-pattern, although the surface is flat, water drops on hydrophilic radial pattern can be convergent to a middle point and water drops on hydrophobic radial pattern can be divergent from the middle point. In line array micro-pattern, water drops can roll off along only one direction in parallel with the line arrays. Such phenomena might be mainly caused by the local change of surface roughness. From these results, controlling the movement and direction of water drops is made feasible without introducing a slope, which can potentially be used for new types of applications.

• Journal of the Korean Society of Costume
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• v.20
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• pp.49-62
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• 1993

The purpose of this research was to utilize of Pattern Design System(P.D.S) by using AM-300 The conclusion were like these : 1. A coat of basic pattern was selected by design sketch. 2. The basic pattern was input into computer by digitizing. 3. The basic pattern was change into designed shape by using various skills. This system were enabled to draw straight lines, curves, delete lines, sections of lines, extend lines, cut pattern into sections, measure line or section reproduce whole pattern shape of section, rotate and mirror pattern and complete patterns. 4. Automatic grading of finished master pattern have been developed by creation and modification of grading rules of basic pattern. 5. Production pattern added seam allowance, not-ches was generated by P.D.S menu option. 6. Finished pattern design was plotted out 100% and 20% size by AM-300 Plotter. This results will be the basic materials to develop the CAD SYSTEM if some problems were improve. Furthermore, the utilization of P.D.S is expected to be developing in pattern making process.

• Journal of the Korean Graphic Arts Communication Society
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• v.26 no.1
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• pp.39-50
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• 2008

We have manufactured Ag pastes for gravure printing by adding different solvent contents. Then the gravure printability and properties of conductive patterns gravure-printed by the different rheology characteristics of pastes were investigated. The dispersity of pastes was increased and the viscosity and shear rate dependence of viscosity for pastes were decreased by increasing the solvent content. Also storage modulus G', loss modulus G" and angular frequency value when G" starts to be bigger than G' of pastes were increased by decreasing the solvent content. These mean a flow drop of paste. As a result of gravure printing using two plates which have different line counts(175line and 350line), conductive patterns printed using 175line were spreaded more but Ag packing, thickness and conductivity of the conductive patterns were better than those printed using 350line. And the spread values of conductive patterns were increased with solvent contents but the best properties for Ag packing, surface roughness and conductivity of the conductive pattern were obtained by paste (3) which has 550cps of viscosity at $100s^{-1}$ and tan ${\delta}$ > 1 at 10rad/s. As a result of gravure printing using 350 line plate and paste (3), the conductive pattern has $1.2{\mu}m$ of film thickness and $1.9{\times}10^{-5}{\Omega}{\cdot}cm$ of conductivity.

• Journal of the Korean Society of Costume
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• v.24
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• pp.29-46
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• 1995

This study is on the classification of Chchori forms in Korea in the 16 th and 17 th Centuries by investigating the patterns an construction of excavated clothong. The characteristic features of the Korean Chchori in the period are as follow. 1. The Chchori shows forms. The diversity is accomplished by varing the components pattern is Chchori, such as collar, sleeve, and bodice. The divertification in Chchori pattern represents an attempt to advance the simple Chchori pattern in the 4 th and 5 th Centuries to the mordern one. 2. Mokpankit (목판깃) has a straight construction line but Kalkit (칼깃), Dangkogit(당코깃) have curved one. This suggests a transformation in the construction line of Chchori. 3. Among Chchori pattern, some Mokpankit and Kalkit Chchori show two kinds in size ; 40-50 cm and 60-70 . However, Dangkokit Chchori has only one size of 40-50cm. Considering the difference in body size between man and woman , Mokpankit Chchori and Kalkit Chchori are jueged to be for man and woman commonly, and Dangkokit Chchori is for woman only. After the period , woman wears only Dangkokit Chchori, whichis thought to come from the sex discrimination. Consequently on the viewpoint of rinsiple of Adaptation to Environments, forementioned facts prove the changes in Korean society in the 16 th and 17 th centuries on the historical basis of costume.

• Journal of Korean Tunnelling and Underground Space Association
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• v.21 no.6
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• pp.825-835
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• 2019

When the tunnel is designed, the ground is classified into several grades and the corresponding support system is applied according to the support pattern table. However, a simple pattern application based on rock grade does not take into account the longitudinal stress transitions occurring at rock grade boundaries. In this study, three-dimensional numerical analysis was performed to estimate the stress change in the longitudinal rock grade change of NATM tunnel, and the influence zone of load transfer was investigated using the influence line and trend line. As a result, the downward change of rock grade in the direction of tunnel excavation occurs in the range of 0.35~0.7D from low-strength rock to high-strength rock around the grade change boundary. It is necessary to apply a downward pattern of about 1.0D to the safety direction in consideration of the influence range of 0.35D to 0.7D.