• 감성과학
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• 제11권1호
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• pp.113-122
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• 2008

본 연구에서는 고감성 의류로 사용되는 국내.외 남성용 소모직물 40종의 시료를 이용하여 이들 소모직물의 물성을 비교.분석하였다. 이들 시료는 1차시료 14개와 2차 시료 26개로 나누어지며 국내와 국외 시료로 구분하여 비교.분석하였다. 물성분석은 Blind field test를 이용하여 전문위원단에 의해 주관적인 물성 평가를 실시하여 국내.외 남성용 소모직물의 물성을 비교.분석하였다. Blind field test는 촉감(부드러움, 탄력감), 색상(선명도, 심색미), 외관(깨끗함, 자연광택), 비교 선호도 등으로 4개군으로 test는 총 7개의 평가항목으로 나누어 전문평가단에 의해 주관적으로 평가하였다.

• 한국의류학회지
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• 제8권1호
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• pp.75-84
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• 1984

The main purpose of the study were to investigate a selection motive of clothing and the feeling of wearing of Korean high school students. The results were as follows ; 1. For underwear, the body appearance and the hygienical aspect were shown as important factors in a selection motive of clothing. And the property of matter and hygienical aspect were shown as important factors in the feeling of wearing. 2. For outwear, a functionality and the psychological aspect were shown as important factors in a selective motive of clothing. And a exeroise and the psychological aspect were shown as important factors in the feeling of wearing. 3. For skirt, the psychological aspect was shown as an important factor in a selection motive of clothing and the feeling of wearing. For pants, a functionality was shown as an important factor in a selection motive of clothing. 4. A exercise was shown as an important factor in the feeling of wearing with the silhouette of outwear. 5. The hygienical aspect was shown as an important factor in the demand of selection motive of clothing for comfort.

• 동력기계공학회지
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• 제20권5호
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• pp.20-28
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• 2016

This study has developed an organic/inorganic hybrid solution by addition of $SiO_2$ polysilicate and Melamine to the urethane. The three types of cold rolled steel were evaluated a corrosion resistance properties by using these solutions. The urethane solution(U) and the urethane solution with $SiO_2$ polysilicate($US_7$) were generate a lot of corrosion. The urethane solution with $SiO_2$ polysilicate and melamine($US_7M_3$) was excellent in corrosion resistance, regardless of the steel type. In addition, corrosion resistance has been shown to depend on the tensile strength. The appearance of coating by U and $US_7$ solution is bumpy surface, and were a lot of fine defects. $US_7M_3$ solution is made a sophisticated molecular cross-linking structure inside the coating, it was a slick surface. Other characteristics are exhibited the excellent property for all solutions.

• 대한용접접합학회:학술대회논문집
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• 대한용접접합학회 2005년도 춘계학술발표대회 개요집
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• pp.370-376
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• 2005

Magnesium alloys are becoming important material for light weight car body, due to their low specific density but high specific strength. However they have a poor weldability, caused high oxidization tendency and low vapor temperature. In this study, the welding performance of magnesium alloys was investigated for automobile application. The materials were rolled magnesium alloy sheet contains Al and Zn such as AZ3l , AZ6l and AZ9l. Three types of welding process were studied, that were GTAW, Laser beam welding and FSW. To evaluate the weldability, we examined the appearance of welding bead. Also we checked bead shape and internal defects such as crack and porosity on cross section of welding bead. The mechanical property was measured for welded specimen by tensile test. For determination of the strength change by welding process, the hardness profile across the welding center was measured. For the results, the tensile properties of welded specimen were decreased obviously on all welding process. For the fusion welding process such as GTAW and laser beam welding, the surface of the welding bead was covered with oxidized magnesium dust but it was removed by simple cleaning work as wipe-out with tissue. Also under cut, that caused vaporization of base metal was occurred. for the friction stir welding, there was no oxidation, under-cut or internal defects. However it had poor weld performance, the reason was cleavage fracture occurred at plastic deformation zone. For welding of magnesium alloy, the laser beam welding process was recommended.

• 폴리머
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• 제38권3호
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• pp.299-306
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• 2014

ZnO pillared saponite was synthesized via a microwave hydrolysis method. To enhance interfacial compatibility between zinc oxide (ZnO) pillared saponite and poly lactic acid (PLA), ZnO pillared organic saponite was prepared by intercalation modification of cetyltrimethylammonium bromide. Moreover, PLA/ZnO pillared organic saponite nanocomposites were prepared by melting processing. The microstructure analysis of PLA/ZnO pillared organic saponite nanocomposites showed that ZnO pillared organic saponite was exfoliated and homogeneouslydispersed in PLA matrix. The property results showed that ZnO pillared organic saponite improved the mechanical properties and thermal stabilities of PLA/ZnO pillared organic saponite nanocomposites. Differential scanning calorimetry (DSC) demonstrated that ZnO pillared organic saponite restrained the appearance of cold crystallization, lowered the glass transition temperature and melting temperature of PLA, and improved the crystallinity of PLA. The results demonstrated that ZnO pillared organic saponite had a good interfacial compatibility and heterogeneous nucleation effect in PLA matrix, and also played an active role in accelerating the crystallization process of PLA.

• 한국식품조리과학회지
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• 제32권2호
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• pp.204-210
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• 2016

Purpose: This study analyzed and compared the physico-chemical and affective properties between mackerels cooked by an electric pan and under superheated steam. Methods: Mackerel were cooked by an electric pan ($95^{\circ}C$) for 10 min and mackerel cooked under superheated steam ($250^{\circ}C$) for 5 min to be internal temperatures of $75{\pm}5^{\circ}C$ and tests to measure proximate composition, color values, texture profiles, microorganism counts and sensory acceptance were performed. Results: The moisture contents were 60.30% and 73.81% in mackerels cooked by electric pan and under superheated steam, respectively. The rate of weight loss in mackerel cooked by electric pan was 39%, whereas it was 29% in mackerel cooked under superheated steam. Mackerel cooked under superheated steam exhibited more yellowness, higher springiness, cohesiveness, gumminess, chewiness, and resilience with more acceptable preferences (appearance, odor, taste, and texture) compared to the mackerel cooked by electric pan. Conclusion: The application of superheated steam technology to fish products could reduce the cooking time and nutritional loss. Also, it could produce highly preferred fish products compared to that prepared by conventional electric pan.

• 동아시아식생활학회지
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• 제22권2호
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• pp.246-254
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• 2012

The principal objectives of this study were to analyze the physiochemical properties of four mulberry fruit beverages (MFBs) and develop descriptive analysis procedures for evaluation of their sensory characteristics. Soluble solid, free sugar, pH, acidity, chromaticity, flavonoid, and anthocyanin of MFBs were determined. All MFB samples showed significantly different physicochemical properties ($p$<0.01). Ten highly trained panelists identified the following 11 sensory attributes in the MFBs and defined the terminology for each attribute : turbidity, chromaticity for appearance characteristics, berry, grass, fermented, sweet, astringent, and sour for flavor characteristics, and throat hit, refreshing, and astringent for textural characteristics. There were significant differences in the 10 sensory attributes among the MFB samples ($p$<0.001). In color, the value of MFB3 was significantly higher than those of others ($p$<0.05). In taste and overall acceptance, the values of MFB2 were significantly higher than those of others ($p$<0.01, $p$<0.001). Descriptive terminology of the developed MFBs could explain the sensory attributes of the samples according to this result. Based on this, proper analysis and sensory evaluation techniques could be applied to other fruit beverages to establish their physiochemical characteristic and descriptive sensory attributes.

• 한국실내디자인학회논문집
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• 제15권3호
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• pp.75-82
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• 2006

Discussions on transparency have been being analyzed as variedly as the diversity itself in contemporary architecture. Though it is inappropriate to summarize the discussions into several specific viewpoints, as the notional classifications on transparency are varied according to the points of individual researchers, it can be said that, by approaching with the standpoint of the designers who may have various difficulties in the course of design, the meaning of this thesis lies largely in the fact that it attempted to study the architectural application techniques of transparency notion both through surface aspect which could be said to decide on the appearance of the architecture shape and through, in physical aspects as a combination of space components comprising the inner space, spatial aspect to which architectural techniques of transparency notion are applied. Through these, we conclude as follows. 1. Representation Techniques of Transparency in Surface : Transparency from surface viewpoint could be categorized into 1) emphasis on property-of-matter, 2) lightness of Literal material itself, 3) visual ambivalence, and 4) dematerialized hyper-surface. 2. Representation Techniques of Transparency in Space : In spatial viewpoint, transparency is summarized into sub-viewpoints as 1) straightforward space 2) ambiguous spacer 3) expanded space

• 한국염색가공학회지
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• 제34권4호
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• pp.234-240
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• 2022

Use of processed timber can help reduce environmental damage and the economic burden of resources (important problems with use of raw timber) and can meet the needs of various fields where the sensibility of raw timber is required. Veneer wood is positioned as a high-value-added product due to its luxury and beauty, and it is used in various fields as a building-related material, such as interior decoration, furniture, flooring, building interior materials, and lumber. Dyeing is necessary to enhance the aesthetic appearance of this pattern and to expand its use. Therefore, in this study, we compared and analyzed the dye ability of oak-patterned materials with reactive dyes, and evaluated their performance as interior materials. As a result, the oak pattern was dyed with 9 kinds of reactive dyes and a comparative analysis was performed. The most suitable conditions are 50℃, 2 hours, and 0.5% o.w.f. In addition, evaluating resilience to daylight, resilience to rubbing, fire resistance, and flame retardance, yielded results suitable for use as an interior material. In this study, the dyeability of veneer dyed under various conditions using reactive dyes was compared and analyzed the performance as an interior material was evaluated.

• 한국작물학회지
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• 제48권3호
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• pp.196-199
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• 2003

이 시험은 논을 무경운으로 15년간 관리한 상태에서 토양의 변화, 벼 수량구성요소와 수량 및 미질을 경운답에서의 그 것과 비교한 결과를 요약하면 다음과 같다. 1. 토층의 형성정도를 보면 11년간 무경운상태로 관리한 논은 토양 상층에 5cm정도의 유기물층이 형성되었으며, 이 층에 유기물을 비롯한 양이온과 인산이 집적되었다. 2. 무경운답의 작토층은 경운답의 작토층에 비하여 유기물함량은 높으나, pH와 양이온, 인산의 함량이 낮았으며, 가비중과 고상의 비율이 높은 반면 액상과 기상의 비율은 낮았다. 3. 경운답은 표토는 매우 부드러우나 토심 5cm정도부터 급격히 단단해 지는 것에 비해 무경운 1년답에서는 표토가 매우 단단하였으나, 무경운으로 관리하는 기간이 길어짐에 따라 표토는 물론이고 경반층 이하에서도 부드러워졌다. 4. 수량구성요소와 수량을 보면 입수, 등숙률, 천립중 다같이 경운방법간에 비슷하였으며, 수량은 유의적인 차이가 인정되지 않았다. 또한 무경운 연속재배에 따른 수량의 변화패턴은 일정한 경향을 볼 수 없었다. 5.쌀의 도정 및 품위특성을 보면 무경운답과 경운답에서 생산된 쌀간에 차이가 없었다.