• 한국의류산업학회지
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• 제16권2호
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• pp.326-332
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• 2014

To develop cool touch feeling fabrics for summer clothing material, it was manufactured several compositions of woven fabrics, having rayon multi-filament yarn (non-twisted) as warp and various kinds of yarn, such as viscose rayon multi-filament yarn (twisted), tencel$^{(R)}$ spun yarn, PET high absorbance quick dry filament yarn, and PET based rayon-like yarn, as weft. After preparing the fabrics, basic properties of the fabrics were investigated, such as air-permeability, tensile strength, absorption rate, drying rate, etc. Also, surface warm / cool sensations of the woven fabrics were assessed by Qmax Warm / Cool Touch Tester. It was observed that the fabrics composed of viscose rayon multi-filament yarn (warp) and PET high absorbance quick dry filament yarn (weft) showed excellent surface cool touch sensation-the highest Qmax value. This is because the fabric having flat shaped PET high absorbance quick dry filament shows the largest contact area with Qmax measuring plate. And, the fabric also showed superior high absorbance and quick dry property as expected. In addition, we treated phase change material (PCM) on the surface of the fabric composed of viscose rayon multi-filament yarn (warp) and PET high absorbance quick dry filament yarn(weft) to improve the cool touch feeling. However, the surface cool touch feeling was impaired by resin treated with PCM during the finishing process.

• 한국의류산업학회지
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• 제19권4호
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• pp.385-399
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• 2017

This study will broaden the application of doll costume product with historical characteristics and the image of unlined cheollik in the $17^{th}$ century period of transition during the Joseon Dynasty. Historical design sources were extracted from old documents and precedent studies. Unlined cheollik of Shin Gyeong-yu, meritorious retainer, were selected as main reference-relic because of various fabric, preserved conditions and definite shape. 'Baby doll' was selected as main model because of consumer preferences and awareness. Design sources from unlined cheollik in the early $17^{th}$ century were about a 1:2 ratio of upper and under parts, removable separated doori-somae, knife-shaped collar (outside), projected square collar (inside), long pleats line, side slit, traditional flat fell seam sewing. Trapezoidal side line, round waistline, and thin fabric were applied in designs because of toddler-body of doll model. Three designs were produced in step 1: Cheollik A focusing on the historical remake (traditional type), Cheollik B with belt and side slit (crossover type), and Cheollik C with back- opening (modern type). In step 2, interview with fashion major student was conducted to increase the utility of designs. As a result, modern trend sources (frill, velcro, round armhole line, slope of sleeves, and floral pattern) were reflected in Cheollik B, C. Finally, three doll cheollik and cheollik-styled doll apron sample were produced. Various versions must be suggested in the study of doll costume products with traditional sources that balance historical characteristics and practicality to improve customer satisfaction.

• 토지주택연구
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• 제8권4호
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• pp.223-232
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• 2017

The purpose of this study is to identify the supply status and planning trend of North Korean housing through analysis on the North Korean architecture specialized media data. The flat composition is changing and the living room is becoming the center of the houses. Also, in the urban areas, the standard apartment type is four apartments in a row and the plan form is getting diversified into circle type, Y type, and irregular type. On the other hand, in the rural areas, two houses in a row and single house are typical and the change in planning scale and space structure are not substantial. Since the 2000s, design changes have been made to emphasize the third dimensional structure of buildings such as the elliptical houses and L-shaped houses. Furthermore, 8~10 households are located on one floor which leads to the tendency of the building enlargement. In terms of house size, a square concept was introduced to replace the initial 2~3 room concept and the basic module of the room planning the 3 room house based on $3m{\times}3m$. However, there seems to be no standard house size, and the house size may differ depending on the social classandregion. In the early 1980s, when there was focus on the apartment complex construction, the high-rise apartment buildings of 30~40 floors was planned. However, during the Pyongyang redevelopment project, apartments of more or less than 10 floors were built and row-houses of more or less than 4 floors were built. In terms of the complex scale, a lot of small complexes of around 300 households are emerging after 2010. The construction projects are mainly limited to specific regions such as Pyongyang and Samjiyeon, and also limited to specific classes such as the workers and soldiers initially and the scientists lately. In addition, living boundary composition and ancillary facilities for sufficient green area ratio securement and the people of North Korea are maintained consistently. In recent years, the specialized floor planning such as solar house and the house for the disabled people, framework houses for redevelopment business, and multi-storied house construction technology are also emerging.

• 방송공학회논문지
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• 제4권2호
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• pp.144-154
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• 1999

이진수열은 간단하고 곱셈기가 필요 없이 생성될 수 있는 직교 수열이다. 이 논문은 곱셈기 작동이 없는 선택적인 주파수 영상처리를 위하여 비 반복적인 다차원 필터를 도입하였다. 주파수 응답은 저역, 대역, 고역의 여파를 제공하여 준 가우시안 형태를 가진 협대역이 된다. 이런 필터들의 효과적인 구현을 위한 소프트웨어와 하드웨어의 알고리즘을 제안하였다. 또한 이진수의 QMF(Quadurature Mirror Filter: QMF)는 좋은 대역 압축을 가진 최대한의 편평한 제곱 특성의 완전 회복의 Paraunitary 필터가 됨을 보이고 웨이브렛 변환으로 확장하였다. 웨이브렛 변환은 원래의 영상을 피라미드 구조를 사용하여 다른 스케일로 분할한다. 이 분할은 수직과 수평으로 수행되어 영상을 기술하는데 필요한 픽셀의 수를 일정하게 유지시켜 준다. 효과적인 완전회복의 이진수 QMF-웨이브렛 신호의 분석구조를 제안하였다. 이 기술은 매우 좋은 주파수 응답과 대역분할을 해부는 필터 해법을 제공해준다. 이 제안한 이산 수열의 QMF-필터의 구조는 효과적이고 VLSI 구현에 간단하고 다해상도 신호 분할과 코딩의 응용들에 적합함을 보였다.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2009년도 추계학술대회 논문집
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• pp.158-158
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• 2009

The electrophoretic deposition(EPD) technique with a wide range of novel applications in the processing of advanced ceramic materials and coatings, has recently gained increasing interest both in academic and industrial sector not only because of the high versatility of its use with different materials and their combinations but also because of its cost-effectiveness requiring simple apparatus. Compared to other advanced shaping techniques, the EPD process is very versatile since it can be modified easily for a specific application. For example, deposition can be made on flat, cylinderical or any other shaped substrate with only minor charge in electrode design and positioning[1]. The synthesis of the nano-sized Ce0.2Sm0.8O1.9(SDC)particles prepared by aurea based low temperature hydrothermal process was investigated in this study[2].When we made the SDC nanoparticles, changed the time of synthesis of the SDC. The SDC nanoparticles were characterized with field-emission scanning electron microscope(FESEM), energy dispersive X-ray analysis(EDX), and X-ray diffraction(XRD). And also we researched the results of our investigation on electrophoretic deposition(EPD) of the SDC particles from its suspension in acetone solution onto a non-conducting NiO-SDC substrate. In principle, it is possible to carry out electrophoretic deposition on non-conducting substrates. In this case, the EPD of SDC particles on a NiO-SDC substrate was made possible through the use of a adequately porous substrate. The continuous pores in the substrates, when saturated with the solvent, helped in establishing a "conductive path" between the electrode and the particles in suspension[3-4]. Deposition rate was found to increase its increasing deposition time and voltage. After annealing the samples $1400^{\circ}C$, we observed that deposited substrate.

• 한국식품저장유통학회지
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• 제7권1호
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• pp.44-50
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• 2000

Physicochemical properties and sensory evaluation of Satsuma mandarin produced in Cheju were investigated . Fruit index(width/Length), soluble solids and acid content of Citrus unshiu marc. var. miyagawa(miyagawa) and C. unshiu marc. var.(okitsu) harvested at 1st December were 1.16 and 1.23, 12.12 and 12.01, 0.97 and 1.09, respectively. and the fruit of miyagawa was showed somewhat round in shape, compared to ikitsu. the taste of miyagawa seemed to be better than okitsu. However, compared to miyagawa, peel thickness was thinner, flesh ratio was higher, and firmness was higher as 0.502kg-force in kitsu. Nevertheless there were some differences among panelist groups in sensory evaluation , middle size of citrus fruits were favorable to most panelists, but except very small or very large size of fruits, there were not so much differences in okitsu. The panelists referred to somewhat flat-shaped fruits from that sensory evaluation score was increased to 1.3 in fruit index. nevertheless there were not so much differences in full-colored fruits, the citrus peel color of reddish yellow was more favorable than greenish or pale yellow color. the score was increased more linearly according to citrusfruit produced in optimum ciltivation area, and was prefered to thinner in peel thickness , Correlation between soluble solids, acid content , Brix/acid ratio and flesh ratio with sensory evaluation score were not showed significantly, it was different to with citrus juice. This data obtained in this experiments are supposed to be applied to the quality evaluation of Satsuma mandarin produced in Cheju .

• Restorative Dentistry and Endodontics
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• 제15권1호
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• pp.120-128
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• 1990

The purpose of this study was to examine the effect of surface treatment on the flexural strength of glass ionomer cement with time elapsed. Glass ionomer cement (Fuji ionomer type II, (GC Co.) was used as experimental materials. Glass ionomer cement was placed in a beam-shaped teflon mold (3mm ${\times}$ 3mm ${\times}$ 25mm) that was rest on a glass plate. Another flat glass was placed on the top of the mold with pressure. After the cement was set, the specimens were divided into three groups and thirty two specimens in each group were surface-treated as follows: No treatment group: Specimens were no surface-treated and stored at $35.6^{\circ}C$ in distilled water. Fuji varnish application (FA) group: Specimens were surface-treated with Fuji varnish (GC Co.) and stored at $35.6^{\circ}C$ in distilled water. Vaseline storage (VS) group: Specimens were no surface-treated and stored at $35.6^{\circ}C$ in vaseline. The flexural strength was measured after I day, 1 week, 2 weeks, 4 weeks from the start of mixing using Instron Universal Testing Instruments. Results were as follows: 1. After 4 weeks, vaseline storage group exhibited the maximum flexural strength (p <0.0005). 2. The flexural strengths in no treatment group were slightly increased with time elapsed, but its difference was not significant, statistically. 3. The flexural strengths in Fuji varnish application group were increased with time elapsed (p <0.05). 4. The flexural strengths in Fuji varnish application group and vaseline storage group were greater than that in no treatment group (p <0.0005).

• 한국버섯학회지
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• 제3권4호
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• pp.129-132
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• 2005

새로운 약용버섯 품목을 개발하여 농가소득증대에 기여하기 위하여 항산화활성을 비롯한 여러 가지 기능성을 가지고 있는 장수버섯의 단핵균주간 교잡으로 육성된 신품종 장생장수버섯의 주요특성은 다음과 같다. 가. 균사배양 최적온도는 $30^{\circ}C$, 자실체발생 및 생육온도는 $25{\sim}30^{\circ}C$이다. 나. 자실체의 색깔은 적갈색이며, 형태는 편평 신장형으로 영지와 유사하게 생겼으나 대가 없는 특징을 가지고 있다. 다. 자실체의 육질이 질기고 단단하며 개체중이 무거워 병재배 병당 수량이 136 g/1000ml로 높은 편이었다. 라. 장생장수버섯은 약용버섯으로 영지와 동일하게 다려서 음용하는데 영지와는 달리 쓴 맛이 없는 특징이 있다.

• Archives of Plastic Surgery
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• 제32권5호
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• pp.555-560
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• 2005

The nose is shaped as a pyramid and is the most prominent portion of the face. Nasal bone fractures are thus more frequent than those of the maxilla and zygoma. Whether the nasal bone fractures are corrected or not due to unnecessity of surgical treatment, the incidence of posttraumatic deformity occurs frequently. In Asian patients, even the corrected noses look low-lying and flat. To resolve these problems, we corrected the posttraumatic deformity of the nose with a combined procedure of nasal ostectomy and augmentation rhinoplasty. From 2000 to 2004, this procedure was performed in fifteen patients with posttraumatic nasal deformity. There were four female and eleven male patients with an average age of 32 years(range 19 to 52 years). All patients had previous trauma history. Of these, closed reduction was performed on 13 patients and no treatment was 2 patients. The deformed noses were corrected through lower columellar incision, by ostectomy or osteomy, and augmentation with silicone implant. We gained satisfactory results of correcting the deformed noses, except one case with implant deviation. Our method for the correction of traumatic nasal deformity proves to be simple and safe. The camouflage effect with silicone implant overcomes an unsatisfactory correction and brings a excellent cosmetic results.

• Archives of Plastic Surgery
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• 제37권6호
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• pp.788-794
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• 2010

Purpose: The fingertip is the most commonly injured part of the hand and its injury frequently results in avulsion or crushing of a segment of the nail bed and fracture of the distal phalangeal bone. Restoration of a flat and smooth nail bed is essential for regrowth of a normal nail, which is important not only for cosmetic reasons but also for tactile capability of the fingertip. It is also anatomical reduction of the distal phalanx to promote patient's cosmetics and prevent nail bed deformity. Absence or no replacement of the nail plate results in obliterated proximal skin fold. When the avulsed nail plate cannot be returned to its anatomic position or when it is absent, we use a synthetic material for splinting the nail bed and alternative reductional method for distal phalangeal bone fracture, especially, instead of hardwares. Methods: From January of 2006 to June of 2009, a total of ten patients and fourteen fingers with crushing or avulsion injuries of the fingertip underwent using the artificial nails for finger splint. We shaped artificial nails into the appropriate sizes for use as fingernail plates. We placed them under the proximal skin fold and sutured to the fold proximally and to the lateral and medial edges of the nail bed or to the distal fingertip. Our splints were as hard as K-wire and other fixation methods and more similar to anatomic nail plates. Artificial nails were kept in place for at least 3 weeks. Results: No artificial nail related complication was noted in any of the ten cases. No other nail fold or nail bed complications were observed, except for minor distal nail deformity because of trauma. Conclusion: In conclusion, in order to secure the nail bed after injury and reduce the distal phalangeal bone fracture, preparing a nail bed splint from a artificial commercial nail is a cheap and effective method, especially, for crushed or avulsion injuries of the fingertip.