• Title/Summary/Keyword: Science and Technology Contents

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Weight Reduction and Dyeing Characteristics of Sea-Island Type Ultramicrofiber PET Tricot Fabric with Black Color (해도형 PET 극세사 트리코트 편성물의 감량 가공 및 블랙 색상의 염색성 평가)

  • Kang, Jeong Min;Kim, Min Gu;Lee, Ji Eun;Ko, Jae Wang;Kim, Il Jin;Lee, Jae Yeon;Lee, Dong Jin;Ko, Seong Ik;Jung, Dae Ho;Lee, Seung Geol
    • Textile Coloration and Finishing
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    • v.32 no.1
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    • pp.9-18
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    • 2020
  • In this study, we conducted alkali hydrolysis on sea-island type PET ultramicrofiber tricot fabric and dyeing according to the various conditions with black disperse dye. Herein, we evaluated the weight loss rate and tensile strength according to the NaOH contents. The optimal alkali hydrolysis treatment conditions were set to 25 %omf NaOH with a treatment time of 60 min at 110 ℃, and average weight loss rate of the PET ultramicrofiber tricot fabric is about 23 %. The dyeing conditions were investigated with different dyeing temperatures(95-135 ℃), dyeing time(20-60 min), dye contents(2-10 %omf), dispersant contents(1-9 g/ℓ), pH buffer solution contents(1-9 g/ℓ), UV-absorbent contents(5-25 %omf) and reduction cleaning process conditions for black color. We obtained the optimum conditions of the dyeing with the dye contents of 8 %omf, the dispersant contents of 1 g/ℓ, the pH buffer solution contents of 1 g/ℓ, the UV-absorbent contents of 10 %omf, the dyeing temperature of 135 ℃ and the dyeing time of 40 min. The light colorfastness of dyed ultramicrofiber PET tricot fabric was good to excellent in the range of 4 to 5.

Degradation of Properties and Loss of Nutrients in Gelatin Soft Capsules the Manufacturing Process

  • Lee, Jin Kyoung
    • KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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    • v.22 no.1
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    • pp.15-23
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    • 2016
  • Gelatin soft capsules, manufactured by the press through package(PTP) process, are widely used in the production of multivitamin dietary supplements and other health functional foods. Gelatin capsules can prevent light and air from having a direct contact with the contents in the capsule, and the nutrients inside the capsules are preserved without any loss. In the present study, on the basis of the results on the safety of gelatin capsules. The parameters investigated included degradation of the capsules before their shelf life, capsule deformation, and changes in specific nutrients. Moisture and heat in the production and storage environments of the capsules caused the gelatin to swell and attach some of the inorganic salts in the vitamin contents. Nutritional component analysis showed that B1, B5, B9, and B12 contents were decreased, while mineral elemental analysis shown calcium, chloride, and zinc compound were found to be infused into the gelatin of the capsule shell.

Polyphenolic Contents and Antioxidant Activities of Underutilized Grape (Vitis vinifera L.) Pomace Extracts

  • Kabir, Faisal;Sultana, Mosammad Shahin;Kurnianta, Heri
    • Preventive Nutrition and Food Science
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    • v.20 no.3
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    • pp.210-214
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    • 2015
  • Grape pomace is an abundant source of underutilized winery by-products. Polyphenols were extracted from grape pomace using cellulase and gluco-amylase enzymes. 2,2-diphenyl-1-picrylhydrazyl (DPPH) and Folin-Ciocalteu's assays were used to measure antioxidant activity and total polyphenolic contents. Both cellulase, and gluco-amylase digested grape pomace showed efficient radical scavenging activity. In addition, the total polyphenolic contents of cellulase digested grape pomace showed lower concentrations were effective compared to higher concentrations, whereas glucoamylase enzyme did not show remarkable variations. The DPPH radical scavenging activity and total polyphenolic contents were significantly higher in the cellulase digested grape pomace compared to the gluco-amylase digested and the not digested grape pomace. It is notable that enzymatic digestions were efficient for extracting polyphenols from grape pomace. The underutilized grape pomace polyphenols can be further used for food safety as a natural antioxidant.

A Study for Enhancing Efficiency in PUS Contents Development (일반인을 위한 과학대중화 콘텐츠 개발의 효율성 제고 방안)

  • Shon, Hyang-Koo
    • The Journal of the Korea Contents Association
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    • v.16 no.2
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    • pp.117-128
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    • 2016
  • The growing socio-economic effect caused by science and technology requires public to participate in policy-making process, which makes government to boost public understanding of science(PUS). Government has also exerted to construct infra for PUS. However results are not so meaningful. The government-funded science museum has mainly provided the program for students. Besides, science broadcasting channel has recorded the worst viewing rate. Meanwhile, some of the private sector-manufactured contents have attracted public attention in recent years, which is realized by considering elements such as an interesting topic selection, use of outside experts, two-way communication system, level adjusting for public through flexible running system. This study analyze podcast based program, face to face lectures, display contents by private industry, fab lab etc. on the base of the reciprocal PUS model to sort out the reason they have successful results. Futhermore, it argues that government should intensify support for private sector and create synergy effect by cultivate collaboration system between government and private sector to enhance the efficiency of PUS and offers public policy to realize the plan.

Web based Text-mining and Biological Network Analysis System (웹기반 문헌분석 및 생물학적 네트워크 분석시스템 개발)

  • Seo, Dongmin;Cho, Sung-Hoon;Ahn, Kwang-Sung;Yu, Seok Jong;Park, Dong-Il
    • Proceedings of the Korea Contents Association Conference
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    • 2017.05a
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    • pp.27-28
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    • 2017
  • 다양한 위상학적 관계(topological relation)를 분석하는 네트워크 분석은 복잡한 데이터에서 숨어있는 특성과 사실을 발견하는 기술로 최근 빅데이터 분야에서 데이터 분석 핵심 기술로 급부상하고 있다. 본 연구에서는 질병연구에 핵심적인 생물학적 네트워크의 생성 및 사용자 친화적인 네트워크 분석시스템을 개발하였다. 개발한 시스템은 PubMed에서 특정 질병과 관련있는 논문 요약 정보를 자동 수집후 텍스트마이닝을 통해 질병 관련 화합물, 유전자 그리고 상호작용 정보를 추출해 생물학적 네트워크를 생성하는 기능을 제공한다. 또한, 연구자가 손쉽게 생성된 네트워크에 대한 검색 및 다차원 분석을 수행할 수 있는 기능을 제공한다. 마지막으로 개발한 시스템의 우수성을 입증하기 위해 크론병(Crohn's Disease)에 대한 적용사례를 소개한다.

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Comparative analysis on the distinctive functions and usability of bibliographic data analysis softwares (서지데이터 분석 툴에 대한 특성 및 편의성 비교분석)

  • Lee, bang-rae;Lee, June;Yeo, Woon-dong;Lee, Chang-Hoan;Moon, Young-Ho;Kwon, Oh-jin
    • Proceedings of the Korea Contents Association Conference
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    • 2007.11a
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    • pp.501-505
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    • 2007
  • Recently KISTI has developed the KnowlegeMatrix which is a stand-alone type bibliographic data analysis software. In this paper, we try to benchmark test on the performance level of KnowledgeMatrix with well-known S/Ws such as VantagePoint and BibTechMon. We compare distinctive functions and usability of each S/Ws on comparative categories including Data, Matrix, Analysis, Visualization and Preprocessing. Test results show that all S/Ws have differentiated specific feature, but there is some performance gaps. KnowledgeMatrix overally shows better performance than others.

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Optimum Ratios of Added Water for Rice Cooking at Different Amount of Rice Contents (쌀밥의 취반시 취반용량별 최적가수율 규명에 관한 연구)

  • Min, Bong-Kee;Hong, Sung-Hie;Shin, Myung-Gon
    • Korean Journal of Food Science and Technology
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    • v.24 no.6
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    • pp.623-624
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    • 1992
  • The optimum ratios of added water for rice cooking at different amount of rice contents were studied with electric rice cooker. The optimum ratios of added water were $1.5{\sim}1.6$, 1.5 and 1.4 at 300g, 600g and 900g of rice contents. The optimum ratios of added water decreased as the rice contents were increased.

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A Study on the Knowledge Flow of Science, Technology and Industry using Patent Citation Information (특허 인용 정보를 이용한 과학-기술-산업 지식흐름에 관한 연구)

  • Kwon, Oh-Jin;Noh, Kyung-Ran;Seo, Jinny;Kim, Wan-Jong;Jeong, Eui-Seob;Park, Hyun-Woo
    • Proceedings of the Korea Contents Association Conference
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    • 2006.11a
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    • pp.706-710
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    • 2006
  • Recently, several studies have been carried on knowledge flow of science, technology, industry to establish STI policy. Still it is lack of studies on relationship of science-industry although there have been studied only in aspect of science-technology relationship or technology-industry relationship. This paper's purpose is to propose method to measure knowledge flow among science, technology, and industry by means of patent citation. After gathering knowledge flow data between science and technology through mapping citing patent and cited paper, it gets knowledge flows data between technology-industry by using OTC (OECD Technology Concordance), technology-industry mapping program. Basd on 2 types of knowledge flow data, it propose method to examine knowledge flow from science to industry by applying overlap function is a network link weight function.

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Effect of a Pholiota adiposa Extract on Fat Mass in Hyperlipidemic Mice

  • Cho, Soo-Muk;Lee, Young-Min;Lee, Dae-Hyoung;Chun, Hye-Kyung;Lee, Jong-Soo
    • Mycobiology
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    • v.34 no.4
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    • pp.236-239
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    • 2006
  • The purpose of this study was to investigate the effect of a Pholiota adiposa extract on fat mass in hyperlipidemic mice fed on a high-fat diet. The water extracts from P. adiposa (ASI 24018) were not affected in the total triglyceride contents and epididymal fat mass in mice fed on a high-fat diet, but the retroperitoneal fat mass decreased significantly. This result suggests that the P. adiposa extract may be a potential candidate for use as a functional food that can act as a prophylactic against hyperlipidemia. However, the P. adiposa extract showed no effect in the total triglyceride contents and epididymal fat mass.

Food Component Characteristics of Wild Hard-shelled Mussel Mytilus coruscus and Cultured Sea Mussel Mytilus edulis in Korea (자연산 홍합(Mytilus coruscus)과 양식산 진주담치(Mytilus edulis)의 성분 특성)

  • Kim, Seon-Geun;Lee, So-Jeong;Oh, Kwang-Soo
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.46 no.6
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    • pp.717-724
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    • 2013
  • To characterize the food components of two mussels (wild hard-shelled mussel (HM) Mytilus coruscus, and cultured sea mussel (SM) Mytilus edulis) in Korea, we examined the proximate composition, fatty composition, amino acid/mineral content, texture, collagen content and chemical and taste compounds. Regarding the proximate composition, HM had lower moisture levels and higher crude protein and carbohydrate contents than SM. The amino nitrogen, volatile basic nitrogen and total amino acid contents of HM and SM were 250.6 and 227.3 mg/100 g, 11.2 and 12.0 mg/100 g, and 17,451.1 and 15,334.8 mg/100 g, respectively. The major amino acids were glutamic acid, aspartic acid, glycine, alanine, lysine and arginine. The major fatty acids of HM and SM were 14:0, 16:0, 16:1n-7, 20:5n-3, and 22:6n-3, which did not differ significantly between the two mussels. HM had a higher n-3 polyene ratio, and a lower saturate and monoene ratio than SM. Regarding the taste-active compounds, the free amino acid contents of HM and SM were 1,116.5 and 961.8 mg/100 g, respectively, and the major free amino acids were taurine, glutamic acid, glutamine, glycine, citrulline, lysine and arginine. The primary minerals in both HM and SM were Na, Cl, K and P which did not differ significantly between the two mussels. The soluble and insolube collagen contents of HM and SM were 265.8 and 228.4 mg/100 g, and 119.5 and 121.8 mg/100 g, respectively.