• 제목/요약/키워드: Functionality material

검색결과 314건 처리시간 0.027초

바위수염 추출물의 파골세포 분화 억제 및 에스트라디올 활성 평가 (Inhibitory Effect of Osteoclastogenesis and Estradiol Activity of Myelophycus simplex Extract)

  • 하현주;임형진;김민경;박선경;노문철;정선희;이승재;이상훈
    • 한국해양바이오학회지
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    • 제12권2호
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    • pp.75-80
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    • 2020
  • In the present study, the estrogenic activity and anti-osteoclastogenic activity of the Myelophycus simplex extract were evaluated using T47D-Kbluc cells and bone marrow-derived macrophages (BMMs). As a result of the measurement of the estrogenic activity in the T47D-Kbluc cell line, the Myelophycus simplex extract showed increased estrogenic activity in a dose-dependent manner in association with its concentration. To confirm the regulatory effect of the Myelophycus simplex extract on the estrogen-responsive gene, the Myelophycus simplex extract showed a similar tendency to estradiol: the expression of estrogen receptor 1 (ESR1) was significantly decreased while the expression of estrogen receptor 2 (ESR2) was increased. Furthermore, the Myelophycus simplex extract exhibited an inhibitory effect on osteoclast differentiation. In conclusion, these Myelophycus simplex extracts might be regarded as candidates for further studies or the development of functional food products or medicine to prevent or avoid postmenopausal symptoms for women.

Psyllium Husk의 식이섬유 소재로서의 기능성 탐색 (Screening Study for the Functionality of Psyllium Husk as a Dietary Fiber Material)

  • 이신영;백진홍
    • 산업기술연구
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    • 제25권B호
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    • pp.229-239
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    • 2005
  • Dietary powder from Plantaginis ovatae testa was prepared by mechnical milling/grinding of the outer layer of the seed. The crystalline/surface structures of its powder (100 mesh) were examined, and several physical functionalities including, water capacity, oil holding capacity, emulsion/foam properties and physiological functionality such as in-vitro glucose and bile acid retarding effects were also investigated. Water holding capacity(WHC) of psyllium powder was $33.71{\pm}0.10g$ water retained/g solid at room temperature, whileas oil holding capacity(OHC) for soybean or rice bran oil were about 1.80g oil retained/g solid. These values of WHC and OHC were about 5.6 times higher and 2.8 times lower than those of commercial ${\alpha}$-cellulose, respectively. Changes of pH showed a small effect on WHC, but WHC increased with temperature. Emulsion capacity of 2%(w/v) psyllium was about 60% level of 0.5%(w/v) xanthan gum but emulsion stability after incubation of 24 hours showed about 1.4 times improvement of xanthan gum(0.5%,w/v). Also, psylliume(above 2%, w/v) alone had higher foam capacity than that of xanthan(1.1 times) and especially, 1 or 2% addition of psyllium improved the foam stability of protein solution(1% albumin+0.5% $CaCl_2$) by factor of 3.3 and 6.0 times, respectively. The glucose and bile acid retarding effects of psyllium powder were relatively very excellent suggesting the prevention from diabetes and arteriosclerosis. Especially, psyllium showed the 3.7 and 3.3 times higher effect on in-vitro glucose and bile acid retardation than those of commercial ${\alpha}$-cellulose, respectively.

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항공정비복 착용실태에 관한 연구 (A Study on the Actual Wearing Conditions of Working Uniform for the Aircraft Mechanic)

  • 임현주;최혜선;이경미;김수아
    • 한국의류학회지
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    • 제30권9_10호
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    • pp.1344-1353
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    • 2006
  • The purpose of this research is to investigate the actual wearing conditions of working uniform and identify problems for the aircraft mechanic. For this study, questionnaire surveys were conducted dividing according to styles of clothing; one-piece and two-piece styles. Subjects were 343 men working in flight line. Questionnaire of 159 two-piece styles and 184 one-piece ones were used in analysis. The results of the study are as follows; The result about wearing each type of working uniform showed that the two-piece one is always as the air force uniform, whereas the one-piece one is worn only a few times. They felt inconvenience during all operations except in the sitting position, crawling position, and positions in which they were using tools. Accordingly, the result of the functionality reported dissatisfaction on all question items. Therefore, uniform of two-piece style achieved better results on all questions related to motional flexibility and functionality. Questions on changes to finishing methods showed that each airline employed different methods for both two-pieced and one-pieced uniforms. The answers about the unstitched or worn-out parts of the two-piece garments showed that pants were unstitched on the inner seam of the trouser leg and hip regions, but the upper one was not. In case of the one-pieced uniform, the parts of wearing out is the seam of hip and the unstitched parts are knee region and hem line of pants. Questions concerning their satisfaction with the material of uniforms indicated a high rate of dissatisfaction, particularly in its ventilation and absorbency. Questions concerning the preferred design of working uniform indicated a preference for two-piece uniform rather than one-piece ones.

시각언어로서의 교통경찰관복의 디자인특성 연구 - 미국, 영국, 이태리, 프랑스, 한국을 중심으로 - (A Study of the Design Characteristics of the Police Uniform As A Visual Language - Focused on the U.S., England, Italy, France and Korea -)

  • 이정원;금기숙
    • 복식
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    • 제58권7호
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    • pp.13-30
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    • 2008
  • Visual language is 'a form of communication without text'. Visual language is one of the strongest methods to spread knowledge. Uniforms could be interpreted as a symbolic language that establishes order in this complicated modern society by placing identity and responsibility on each members of various different organizations. In light of the above, the purpose of this research paper will be to analyze police uniforms of U.S.A, Great Britain, Italy, France and Korea as a form of visual language and interpreting them in terms of visual design in order to understand the fundamental ideas behind the designs and the effective applications thereof. Upon analysis of traffic police uniforms of each individual county mentioned above by separating each uniform's distinctive design, pattern, color, material and decoration based on visual factor, three characteristics of authority, dynamic functionality and friendliness were derived from comparing and analyzing each country's distinctive uniform design. The traditional unique role of police in our society was to maintain social order as their nature inherently possesses characteristic of authority and preservation, but has since undergone transition in many countries to appeal to the broader public by incorporating friendliness and dynamic functionality. Analyzing police uniforms in terms of visual linguistic sense requires a much more profound process of understanding beyond simple interpretation of configurative shapes. In conclusion, the true purpose of uniforms is to include and portray images of mankind's desire toward expressing ideas like 'mankind's bias toward existence beyond theirselves and the exercise of force through authority' and materializing such ideas into a physical form.

백굴채 추출물을 이용한 염색직물의 염색성 및 기능성 (The Dyeing Properties and The Functionality of Fabrics Dyed with Chelidonium Majus Extract)

  • 박영희
    • 한국의류산업학회지
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    • 제10권2호
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    • pp.242-248
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    • 2008
  • This study was aimed to find whether the Chelidonium majus which grows naturally in Korean soil and has a various medical ingredient is valuable as a natural dyeing material and to examine the functionality of Chelidonium majus extract. As the test result of dyeing colorfastness, colorfastness to sunlight was 1st grade for all the dyed fabrics. The colorfastness to laundry for discoloration showed from 1st to 4th grade and that for discoloration showed from 4th to 5th grade through all the dyed fabrics. Colorfastness to perspiration, rubbing, and drycleaning showed from 4th to 5th grade through all the dyed fabrics. In the result of antibiosis test, the dyed cotton fabric showed the bacteria reduction rate of 99.0% for Staphylococcus aureus and Escherichia coli evenly when washed one, three, and five times, The dyed silk fabric, when washed one, three, and five times, showed the bacteria reduction rate of 99.0% for Staphylococcus aureus, but didn't showed the significant bacteria reduction. As the test result of sun protection test, in the case of the cotton fabric which was dyed but don't use mordant, after one-time washing, S.P.F.(Sun Protection Factor) showed 20.4, the interception rate of UV-A showed 94.3%, and that of UV-B showed 95.2%. After five-time washing, S.P.F. showed 14.3, the interception rate of UV-A showed 90.0%, and that of UV-B showed 93.2%. In the case of the silk fabric which was dyed but don't use mordant, after one time washing, S.P.F. showed 30.5, the interception rate of UV-A showed 95.9%, and that of UV-B showed 96.9%, after five-time washing, S.P.F. showed 31.0, the interception rate of UV-A showed 95.6%, and that of UV-B showed 96.7%.

컴프레션웨어의 디자인과 제품구성요소 분석 (An Analysis of Compression Wear Designs and Structural Elements)

  • 이정화;전정일;최경미
    • 한국의류산업학회지
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    • 제16권3호
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    • pp.421-433
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    • 2014
  • The aim of this study was to provide compression wear manufacture brands with information needed for product development. 8 tops and 7 bottoms from widely recognized compression wear manufacture brands were selected, and their product structural elements were analyzed, too. The results showed that most compression wear designs were applications of cutting lines designed considering muscle movements of the human body. The average number of cutting lines for patterns and designs were 14 for tops and 15 for bottoms. Different colored material was mainly used on the top for areas that require ventilation or high movement during sports for tops, and for areas that require muscle and joint support during sports for bottoms. The functionality of top materials were found to be stretch, muscle support, moisture absorption and high speed drying, warmth and ventilation for tops, in order of frequency, and stretch, muscle support, moisture absorption and high speed drying, and pressure for bottoms, in order of frequency. Tops were cut in the direction of the lengthwise grain, and bottoms were not only cut in the direction of the lengthwise grain, but also in the direction of the crosswise grain and bias for many products. Tops consisted of an average of 13 organically connected panels, and bottoms consisted of an average of 18 organically connected panels, which was analyzed to improve functionality. The average clothing surface area stretch rate was 85.7% for tops and 70.0% for bottoms, indicating that bottoms were designed to have higher strain rates compared to tops.

전문가와 거주자 인식 관점에서 본 한옥의 특성과 적용 (The Characteristics and Applications of Han-Ok in the Perception of their Residents and Experts)

  • 이민아
    • 한국생활과학회지
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    • 제20권2호
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    • pp.487-503
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    • 2011
  • The purpose of this study was to investigate residents' perceptions and attitudes towards Han-Ok based on a study of the characteristics and elements of Han-Ok that experts perceived. For the study, in-depth interviews were conducted and the data of 7 experts and 24 Han-Ok residents were analyzed. The results of the study were as follows. First, the characteristics of spatial arrangements are primarily emphasized and provide emotional stability for the residents. Placement on the ground, a suitable scale, appropriate openings and closures, hierarchical spatial system and a spatial relationship provide a feeling of comfort and protection. Second, the spaces and the materials of Han-Ok are considered the representative elements providing functionality and health. The close relationship between the inside and outside area makes the air naturally circulate and natural materials such as wood, soil, and paper have the function as natural ventilation, heat storage, and in the prevention of various illnesses. Third, residents in modern society put more of a value on experiences of natural environments that are usually impossible in the city. The simple and incomplete characteristics in using color, materials, and form, provide a culture of story telling and a leisurely lifestyle. Fourth, the cold and spatial inconvenience of Han-Ok are solved by partially using modernized equipment and material. The functionality of spatial systems in Han-Ok needs to be promoted in order to change the residents' perceptions of cold in Han-Ok.

플래퍼 패션이 현대(現代) 패션에 미친 영향(影響) (The Influences of Flapper Fashion on Modern Fashion)

  • 박혜원;조규화
    • 패션비즈니스
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    • 제2권3호
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    • pp.55-72
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    • 1998
  • The purpose of this study is for consideration of the flapper fashion (1924-1928) in Jazz Age (1919-1929) of America and the influences of it on modern fashion. This study is started from the latest fashion trend which is pursuing it's inspiration into the Jazz Age, the 20s. The etimology of 'flapper' was based on mines is 'flap' such as 'flutter of skirt hemline', 'hands', 'arms', 'wings' and a slang which was applied to young women from 1830. In 20th century it has meant not only new American women but also their fashion and attitude. The designs of flapper fashion were expressed by simplicity, functionality, nudity and rhythm. Simplicity was the best value of this time and the simple image was considered the smartest. Functionality was represented by straight boyish style and loose baggy silhouette that was related to free dome. Nudity was expressed by revealing of legs, arms, backs in shapes and see-through by materials. It was related to sexual attraction and point to youth. Rhythm of flapper fashion expressed optical effect of movement. Using of light material was deep related to freedom of flappers, speed, rhythmical Jazz and dancing. The influences of flapper fashion were giving an opportunity that changed fashion leader from high class to young popular group and simple design of flapper fashion effected to modernization and popularization of American apparel business. And it influenced American casual fashion which was known as brightness, youth and openhearted mood. So flapper fashion can be reganded as the starting point of the street fashion of the 20th century.

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리빙라디칼 중합법을 포함한 화학적 방법에 의한 고무의 개질 (Modification of Rubbers through Chemical Reactions including Controlled/"living" Radical Polymerization Techniques)

  • 주상일;조현철;이상훈;홍성철
    • Elastomers and Composites
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    • 제44권2호
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    • pp.122-133
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    • 2009
  • 고무는 천연 고무를 비롯하여 부타디엔 고무, 스티렌-부타디엔 고무, 니트릴-부타디엔 고무, EPDM, 염소화 고무 등 산업적 요구에 따라 발전하여 왔다. 광범위한 분야에서 고무가 사용됨에 따라 새로운 물성을 갖는 합성 고무나 개질 고무의 생산이 필요하게 되었다. 본 리뷰 논문에서는 이중 결합을 포함하는 고무의 화학적 개질을 통하여 고무의 구조를 변화시키거나, 관능기, 이종 고분자 등을 도입하는 몇 가지 방법들에 대하여 정리해 보고자 한다. 특히, 최근에 많은 응용이 시도되고 있는 리빙 라디칼 중합법에 의한 고무의 개질을 소개하고 이의 효과를 알아보고자 한다.

상황버섯 수집균주로 기능성 우수균주 선발 및 적합 곡물배지 개발 (Selection of good bioactive strains from collected Phellinus sp. and development of suitable grain media)

  • 김정한;백일선;신복음;권희민;이용선
    • 한국버섯학회지
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    • 제17권3호
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    • pp.107-112
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    • 2019
  • 상황버섯 균사체 추출물을 이용한 건강 기능성 소재로 개발하기 위하여 수행한 연구는 다음과 같다. 수집균주 8종 가운데 균사생장과 항산화활성이 우수한 장수상황과 GMPL48007을 선발하였다. 장수상황은 폴리페놀 함량(20.5mg/g)과 환원력이 1.307로 우수하였고, GMPL48007 균주는 DPPH 라디컬 소거능이 89.4%로 우수하였다. 곡물재료별 추출수율은 통밀배지에서 장수와 GMPL이 각각 6.2%, 8.2%로 우수하였고, 베타글루칸 함량은 GMPL48007 균주를 통밀배지에서 배양시에 가장 높은 함량을 보였다.