• Title/Summary/Keyword: Functional Material

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Milk and Collagen Peptides for Bone Health (골 건강을 위한 우유 및 콜라겐 펩타이드)

  • Bae, Hyo Ju;Chang, Jin Hee;Kim, Hyoung Min;Hong, Sung Wook;Seol, Kuk-Hwan;Park, Beom-Young;Oh, Mi-Hwa
    • Journal of Dairy Science and Biotechnology
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    • v.31 no.2
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    • pp.161-164
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    • 2013
  • The prevalence rate of osteoporosis in older men and women has recently increased, and thus bone health is a major concern in Korea. This concern, along with increasing concern regarding youth height, has led to growth of the functional food industry for children, reaching approximately 200 billion won. It is necessary to develop safe and effective functional materials for bone growth and health. Foods are excellent sources of functional material as they are safe to use. It is well known that the phosphopeptide casein, which is derived from milk, is effective against osteoporosis by aiding in the absorption of calcium. In our study, collagen peptides derived from porcine skin were evaluated as a functional material for bone growth, as several peptides have been shown to aid in osteoblast formation.

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Effect of Hot-compaction Temperature on the Magnetic Properties of Anisotropic Nanocrystalline Magnets

  • Li, W.;Wang, H.J.;Lin, M.;Lai, B.;Li, D.;Pan, W.
    • Journal of Magnetics
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    • v.16 no.3
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    • pp.300-303
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    • 2011
  • The effect of the hot-compaction temperature on the microstructure and magnetic properties of anisotropic nanocrystalline magnets was investigated. The hot-compaction temperature was found to impact both the magnetic properties and the microstructure of die-upset magnets. The remanence of the isotropic precursor increases slightly with the improved hot-compaction temperature, and the grains start to grow on the flake boundary at higher hot-compaction temperatures. After hot deformation, it was found that the change in the magnetic properties was the inverse of that observed with the hot-compaction temperature. Microstructural investigation showed that die-upset magnets inherit the microstructural characteristics of their precursor. For the die-upset magnets, hot pressed at low temperature, scarcely any abnormal grain growth on the flake boundary can be seen. For those hot pressed at higher temperatures, however, layers with large equiaxed grains could be observed, which accounted for the poor alignment during the hot deformation, and thus the poor magnetic properties.

Characterization of a Functional Coating Film Synthesized on the Ceramic Substrate for Electrical Insulator Application according to Coating Method

  • Shan, Bowen;Kang, Hyunil;Choi, Wonseok;Kim, Jung Hyun
    • Transactions on Electrical and Electronic Materials
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    • v.18 no.3
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    • pp.148-150
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    • 2017
  • For the improvement of the anti-fouling features of porcelain electrical insulators, in this study, the surface of an insulator was coated with a functional material to expand the insulator's self-cleanness. The anti-fouling and mechanical features of the functional film coating of ceramic substrates made from components like an electrical insulator were analyzed. The coating methods that were used were spray coating, dip coating, and fabric coating. Following the coating, the contact angle of the coated surface was measured, revealing that the spray coating method offered the lowest angle ($13.7^{\circ}$) and a strong hydrophilic feature. The anti-fouling analysis showed that the anti-fouling features improved as the contact angle decreased. The mechanical properties - hardness and adhesion - were both excellent at 9H and 5B, respectively, regardless of the coating method that was used.

A study on the taping techniques of functional golf inner-wear for improving golf swing trajectory & shot distance (골프 스윙궤적 및 비거리 향상을 위한 기능성 골프 이너웨어의 테이핑 기법 연구)

  • Jungwoo Kim
    • The Research Journal of the Costume Culture
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    • v.32 no.1
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    • pp.58-69
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    • 2024
  • The purpose of this study was to develop the Functional golf inner-wear by preventing the injuries and enhancing the performance of the Golf swing by checking the influence of the wearing of the functional golf inner-wear considering golf characteristics on the Swing trajectory and Shot distance. Functional inner-wear effective for golf swing was manufactured using the sports taping method. Changes in driver and iron swing before and after wearing the functional golf inner-wear manufactured in this way were measured using trackman equipment. Measurement variables were limited to Club Speed, Attack Angle, Club Path, Ball Speed, Smash Factor, and Priority. Before and after wearing functional golf inner-wear, there were statistically significant differences in driver club speed, iron club speed, driver etch angle, iron club pass, driver ball speed, driver smash factor, iron smash factor, driver carry, iron carry, and right shoulder joint proprioceptive sensory ability. As a result, functional golf inner-wear is effective for ball speed, impact, and carry by increasing club speed and efficient swing. Future research will focus on the development of functional golf that can improve the swing ability in a short game that plays an important role in the golf game through various sports taping grafting technique, textile, special material, film, Research on functional golf inner-wear.

Study on Relationship between Elderly Group Lifestyle and Selection Attributes in the Health Functional Foods (실버층 라이프스타일에 따른 건강기능식품 선택속성에 관한 연구)

  • Lee, Myung Sook;Kim, Sook Eung
    • Korean Journal of Clinical Pharmacy
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    • v.25 no.4
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    • pp.286-295
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    • 2015
  • Objective: This experiment is to study how elderly group and their various lifestyles interact with health functional foods, according to their selection behavior. Different lifestyles will be observed closely, as well as how different health conditions and consumer involvements will affect critical decision making in selecting health functional foods. Method: Theories and discoveries from original advanced research were compared parallel to the new study. Results: First, cluster analysis and exploratory analysis were performed amongst different elder lifestyles. Lifestyle exploratory analysis was used for healthy, unique, leisure, and economical-style elders. Cluster analysis was used for material trend oriented, health oriented, complacent oriented-style elders. Health Functional Foods' selection trait Exploratory Factor Analysis showed that product's originality (function, uniqueness, specialty, compatibility, distributor, expiration date), quality (amount, daily dose, visual representation, accessibility, portability, natural ingredients), and popularity (product container, brand image, taste and smell, advertised product, domestic or import, well-known function) were the three main causes. Secondly, the amount of benefits for the elderly group health lifestyle were affected by 'Interest in health', 'Notability of the health functional food', and 'Functionality approved mark'. Specifically, the importance of, 'Interest in health', 'Notability of health functional food', and 'Functionality approved mark' were noticeably high within health oriented elders. Lastly, after examining the data from elder lifestyle's relationship with health functional food selection trait, all three different results showed equal importance. If you closely examine material trend oriented elderly group, selection trait showed distinctively high regards in 'Fundamental Attribute', 'Typical Attribute', and 'Cognitive Attribute'. Health oriented elders showed their distinctively high regards in 'Natural Attribute', and less consideration in 'Typical Attribute' and 'Cognitive Attribute'. Complacent oriented-style elderly group showed less focus on 'Fundamental Attribute', and even less in 'Typical Attribute', and 'Cognitive Attribute'. Health oriented elderly group concluded with above data from the fact that they showed most importance and involvement in health beneficial products that are scientifically proven. Material trend oriented elderly group showed balanced traits in their concluded data, showing that they prefer function, safety, as well as the brand image and their reputation. Also, they consider the products' outer elements, such as design and product name, in order to sense inner functions. Conclusion: So, Silver Business corporations must develop products to fulfill the market demands, and strategize marketing plans to better target the correct audience.

Enhancement of Dyeing Fastness of Artificial Suede (3) (인조스웨드의 견뢰도 향상에 관한 연구 (3))

  • Kim, Kyung Pil;Kim, Hea In
    • Textile Coloration and Finishing
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    • v.28 no.4
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    • pp.280-289
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    • 2016
  • Silica microgel was prepared by sol-gel process and then functional groups, epoxy group and ethoxy group, were introduced on the particle by coupling treatment with 3-glysidoxypropyltrimethoxysilane. The functional silica microgel(functional SiGel) formation was identified using FT-IR spectrometry. Phase stability for DMF solution of functional SiGel, PU resin and pigment was evaluated by Turbiscan Lab. And physical properties of artificial suede including hand values, morphology and dyeing fastness were investigated. The mean particle size and the specific surface area of the functional SiGel were $0.77{\mu}m$ and $380m^2/g$. Mixture containing the functional SiGel, PU resin and pigment was more stable than the functional SiGel-free mixed solution. Artificial suede prepared by the functional SiGel had appearance and feeling close to natural suede. The migration fastness, the solvent wicking fastness and rubbing fastness of the artificial suede were enhanced to 4~5 grades, 4~5 grades and 3~4 grades, respectively.

Development and Evaluation of Functional Group Activity Program on Institutionalized Aged (시설 노인을 위한 기능적 그룹활동 프로그램의 개발 및 운영 평가)

  • Bang, Yo-Soon;Kim, Hee-Young
    • Journal of muscle and joint health
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    • v.18 no.1
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    • pp.83-92
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    • 2011
  • Purpose: The purpose of this study was to identify the changes of physical function, perceptual and cognitive function, emotional function, and functional independence in the institutionalized aged according to functional group activity program (self help Tai Chi exercise plus functional task). Methods: Study subjects were 20 institutionalized aged from June to October in 2010. The subjects received functional group activity program two times a week for 15 weeks. Physical function (grip strength, coordination, lower extremity strength, balance, gait, trunk flexibility), perceptual and cognitive function, emotional function(depression, social skill), and functional independence were measured before and after the program. Results: The subjects showed significantly increased physical function (coordination, lower extremity strength, gait, trunk flexibility), perceptual and cognitive function, emotional function (depression, social skill), and functional independence. The functional group activity program may be an effective strategy for institutionalized elders to enhance their functions. Conclusion: The functional group activity program may be effective on elderly institutions which have limitation in human, material, environmental resources.

A Study on Effect of Silver Consumer's Lifestyle on Purchase Satisfaction and Repurchase Intention of the Health Functional Foods (실버 소비자의 라이프스타일이 건강기능식품 구매 만족도 및 재 구매 의도에 미치는 영향에 관한 연구)

  • Choi, Soo-Il;Kwak, Jong-Hyung
    • The Korean Journal of Food And Nutrition
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    • v.20 no.3
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    • pp.334-340
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    • 2007
  • The purpose of this study is to analyze silver consumers' life style, and whether silver consumers ’ life style have an effect on purchase satisfaction and repurchase intention of the health functional foods. To this end, a survey was conducted from May 28 to June 20 in 2007, among silver consumer aged in over 50s, on their purchase experience of the health functional foods. The survey was conducted with 326 subjects, and the statistical analysis methods were frequency analysis, factor analysis, and multiple regression analysis. According to the result of this study, First, the silver consumers' life style factors were determined to be health and leisure pursuit, material pursuit, family pursuit, and outgoing challenge pursuit. And purchase satisfaction factors of the health functional foods were determined to be taking after dosage and service, function and purchase, appearance of health functional foods. Second, silver consumers' family pursuit life style and outgoing challenge life style had an effect on taking and service satisfaction, appearance and products satisfaction of the health functional foods. Third, purchase satisfaction had an effect on repurchase intention of the health functional foods. Therefore, this study is significant in that it clarifies the relation of silver consumers' life style and purchase satisfaction and repurchase intention of the health functional foods.

Synthesis and Characterization of Fructooligosaccharides Using Levansucrase with a High Concentration of Sucrose

  • Seo Eun-Seong;Lee Jin-Ha;Choi Jae-Young;Seo Mi-Young;Lee Hee-Sun;Chang Seuk-Sang;Lee Hyung-Jong;Choi Jeong-Sik;Kim Doman
    • Biotechnology and Bioprocess Engineering:BBE
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    • v.9 no.5
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    • pp.339-344
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    • 2004
  • A method for synthesizing branched fructo-oligosaccharides (BFOS) with a high concentration of sucrose ($1{\~}3$ M) was developed using levansucrase prepared from Leuconortoc mesenteroides B-1355C. The degree of polymerization of oligosaccharides synthesized according to the present method ranged from 2 to over 15. The synthesized BFOS were stable at a pH ranges of 2 to 4 under $120^{\circ}C$. The percentage of BFOS in the reaction digest was $95.7\%$ (excluding monosaccharides; $4.3\%$ was levan). BFOS reduced the insoluble glucan formation by Streptococcus sobrinus on the surfaces of glass vials or stainless steel wires in the presence of sucrose. They also reduced the growth and acid productions of S, sobrinus. Oligosaccharides can be used as sweeteners for foods such as beverages requiring thermo- and acid-stable properties and 3s potential inhibitors of dental caries.

The novel encapsulation method for organic thin-film transistor (새로운 방식의 유기박막트랜지스터 패시베이션 기술)

  • Lee, Jung-Hun;Kim, Seong-Hyun;Kim, Ki-Hyun;Lim, Sang-Chul;Cho, Eu-Na-Ri;Jang, Jin;Zyung, Tae-Hyung
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2004.05a
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    • pp.177-180
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    • 2004
  • In this study, we report a novel encapsulation method for longevity of an organic thin-film transistor (OTFT) using pentaceneby means of an adhesive multiplayerincluded Al film. For encapsulation of OTFTs, the Al film adhered onto the OTFT in a dry nitrogen atmosphere using a proper adhesive. A lifetime, which was defined as the time necessary to reduce mobility to 2% of initial mobility value, was observed from the typical $I_{D-VD}$ characteristics of the field-effect transistor (FET). The initial field effect mobility ${\mu}$ was measured to be $2.0{\times}10^{-1}\;cm^2/Vs$. The characterization was maintained for long times in air. No substantial degeneration occurred. The performance and the stability are probably due to the encapsulation effect.

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