• Title/Summary/Keyword: Fiber components

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Melting Depression for Blends of Two Multiblock Copolyetheresters (블록 코폴리에테르에스테르 블렌드의 융점 강하)

  • Kim, Hae-Young;Jang, Young-Joo;Baik, Doo-Hyun
    • Proceedings of the Korean Fiber Society Conference
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    • 2002.04a
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    • pp.93-96
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    • 2002
  • Blending Is cheap and leads to new thermoplastics, many properties which can be predicted from those of the components. Due to the incompatibility of their components, most blends feature coarse phase morphologies with weak interfaces between the phases. Consequently the blends are brittle. Thermoplastic elastomers which have two kinds of segments in the chain have flexible(soft) and rigid(hard) segments and exhibit a unique combination of strength, flexibility, and processibility. (omitted)

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Analysis of Nutritional Components of Euonymus sieboldiana Leaves (참빗살나무 어린 순의 영양 성분 분석)

  • Kang, Min-Seung;Kim, So-Young;Lee, Yeon-Hee;Choi, Je-Wol;Baek, O-Hyun;Han, Hye-Kyung;Kim, Se-Na;Kim, Jung-Bong;Park, Hong-Ju;Cho, Young-Suk
    • Journal of the East Asian Society of Dietary Life
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    • v.21 no.6
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    • pp.918-923
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    • 2011
  • This study was aimed to investigate the nutritional components such as proximate content, minerals, vitamins, and dietary fiber of Euonymus sieboldiana leaves. The leaf sample used was fresh material produced in April in the Republic of Korea. As a result, the fresh leaf sample contained 10.30% crude carbohydrates, 7.42% crude proteins, 0.69% crude fat, and 1.46% crude ash, including a high amount of potassium (0.73%). The total dietary fiber, insoluble dietary fiber, and soluble dietary fiber content was 8.77%, 7.60%, and 1.17%, respectively. Vitamin C was found to be 44.53 mg% using colorimetric analysis. We regarded E. sieboldiana as a potential health food material because of its abundant nutritional components like potassium, dietary fiber, and vitamin C.

Fried pork loin batter quality with the addition of various dietary fibers

  • Park, Sin-Young;Kim, Hack-Youn
    • Journal of Animal Science and Technology
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    • v.63 no.1
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    • pp.137-148
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    • 2021
  • The effect of the addition of dietary fiber extracted from wheat, bamboo, and oat on the quality of fried pork loin batter was investigated. Quality evaluation included proximate composition, pH, color, viscosity, coating and frying yield, electronic nose, and sensory evaluation. Regarding proximate composition of fried batter and fried pork loin, the water content of the dietary fiber treatments was significantly higher than that of the control (p < 0.05), whereas fat content was significantly lower than that of the control (p < 0.05). The lightness of non-fried batter with dietary fiber treatments was significantly higher than that of the control (p < 0.05), whereas the yellowness was significantly lower than that of the control (p < 0.05). The lightness, redness, and yellowness of fried pork loin with dietary fiber treatment were significantly lower than those of the control (p < 0.05). The viscosity and coating and frying yield of dietary fiber treatments were significantly higher than those of the control (p < 0.05). The volatile compounds of dietary fiber treatments were decreased "tallowy" flavor and increased "buttery" and "milky" flavor. The principal components of bamboo and oat fiber treatments were clearly distinguishable from those of the control; however, similar principal components as those of the control were obtained with wheat fiber treatment. Regarding sensory evaluation, the color, texture, and overall acceptability of wheat and oat fiber treatments were significantly higher than those of the control (p < 0.05), and the flavor of the wheat fiber treatment was significantly higher than that of the control (p < 0.05). These results show that wheat and oat fibers are suitable for fried pork loin batter and improve its quality.

대만의 광산업 시장 동향

  • Jeong, U-Geum
    • Photonics industry news
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    • s.34
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    • pp.12-17
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    • 2006
  • 대만은 광산업 분야를 OE(Optoelectronics Components, FPD(Flat Panel Display), Optical Storage, Optical Lens Components & Laser Applications, OFC(Optical Fiber Communications, Optical Input & Output Devices 등 6개 대분류로 나누고 있으며 수년간 중점적으로 육성해 온 분야는 OE 및 FPD와 관련이 큰 LED 분야이다.

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Antibacterial Finishing of PET Nonwovens with Colloidal Solution of Nano-sized Silver (나노 사이즈의 은 콜로이드 용액을 이용한 폴리에스테르 부직포의 항균가공)

  • Lee, Hoon-Joo;Jeong, Sung-Hoon
    • Proceedings of the Korean Fiber Society Conference
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    • 2001.10a
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    • pp.386-389
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    • 2001
  • Researches for nanotechnology are inherently multidisciplinary since on the biological, and chemical components and systems are essentially the same. As the synthetics develop, many people are concerned about the influences of natural environment and hygiene of manufactures. By this reason, a new area has developed in the realism of textile finishing. The aim of this work is to consolidate nanotechnology into bacteriostasis of textile. (omitted)

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X-RAY PHOTOELECTRON SPECTOSCOPIC ANALYSIS OF ALUMINUM COMPOUND ADSORBED ON PULP FIBER SURFACES

  • Takuya Kitaoka;Hiroo Tanaka
    • Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
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    • 1999.04b
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    • pp.239-244
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    • 1999
  • aluminum sulfate (alum) as a representative retention aid in papermaking processes was added to pulp suspensions, and the aluminum components adsorbed on the pulp were investigated quantitatively by two types of X-ray elementary analyses with regard to simultaneous changes of their surface charges. X-ray photoelectron spectroscopy (XPS) and X-ray fluorescence analysis (XFA) were applied to determine the aluminum components retained in pulp pads up to ca. 10 nm and 100${\mu}$m depth, respectively. In other words, XPS was utilized to analyze the outermost surface layers of the samples, and XFA was available for measurement of their extensive regions. A particle charge detector (PCD) was used to monitor streaming potentials at various pHs of the pulp mixtures under moderate sharing conditions. At pH 4.5 of pulp suspensions containing alum, surface charges of pulp fibers varied from negative to slight negative (approximately neutral) according to adsorption of aluminum components onto the pulp fibers. Subsequently, when a dilute NaOH solution in limited amounts was added to pulp mixtures, both streaming potentials and surface aluminum content of the pulp fibers increased distinctly although little total aluminum retention increased. Further addition of alkali solutions brought drastic decreases of the surface charges and surface aluminum content, while total aluminum content, on the contrary, increased gradually under neutral conditions. These results indicate that residual aluminum ions remained in pulp suspensions are predominantly adsorbed on surfaces of pulp fibers by adequate alkali additions and they must sufficiently cationize the fiber surfaces with increases of somewhat cationic aluminum complexes formed on the surfaces. On the other hand, aluminum components formed in higher pH ranges have nearly no contribution to improvement of charge properties of the pulp fiber surfaces, even though aluminum retention in pulp pads increases. XPS and XFA analyses combined with streaming potential measurement using a PCD suggest close relationships between aluminum content on the pulp fiber surfaces and their charge properties.

The Production of Alcohol from Municipal Waste(I) -The Changes of Components of the Pretreated Lignocellulosic Biomass- (도시 폐기물로부터 알콜생산(I) - 전처리된 lignocellulosic biomass의 조성분 변화 -)

  • Lim, Bu-Kug;Yang, Jae-Kyung;Jang, Jun-Pok;Lee, Jong-Yoon
    • Journal of the Korean Wood Science and Technology
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    • v.22 no.4
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    • pp.7-12
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    • 1994
  • In recent years, the municipal wastes recognized resources. This study was performed to survey the changes of main components of the pretreated(chemical, physical) lignocellulosic biomass. The result can be summerized as follows; In pulp fiber composition, newsprint and corrugating container were mainly consist of softwood fiber(tracheid). But computer print out and magazine had a large amount of hardwood fiber(wood fiber). And, carbohydrate content in the various lignocellulosic biomass increases as the following orders : Magazine < Newsprint < Corrugating container < Computer print out. In the chemical pretreatments for the delignification, sodium hypochlorite pretreatment was more effective than sodium hydroxide. By washing, ash content of lignocellulosic biomass was decreased. Physical pretreatments were less effective than chemical pretreatment for the delignification. On the other hand, in physical pretreatments, ash content of lignocellulosic biomass was the same tendency as in the chemical pretreatments.

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Analysis of Aroma Compounds of Cinnamon by Solid Phase Microextraction (Solid Phase Microextraction을 이용한 계피의 향기성분 분석)

  • 이창국;이재곤;장희진;곽재진
    • The Korean Journal of Food And Nutrition
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    • v.16 no.4
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    • pp.372-378
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    • 2003
  • The volatile components of cinnamon bark were extracted by using different isolation methods, simultaneous distillation extraction (SDE) and solid phase microextraction (SPME). Then the volatile components were analyzed by gas chromatography(GC) and mass selective detector(MSD). 30 compounds were identified in cinnamon bark. In SPME technique, several factors influencing the equilibrium of the aroma compounds between sample and SPME fiber was taken into account, including the kind of SPME fiber, extraction temperature and extraction time. Four different SPME fibers were tested, namely polydimethylsiloxane (PDMS), poly acrylate(PA), divinyl- benzene-carboxen-polydimethylsiloxane (DVB/CAR/PDMS) and carbowax/divinylbenzene(CW/DVB). Among these SPME fiber, PDMS coating fiber showed the best results. The profile of volatile compounds of cinnamon bark at different extraction temperature and extraction time were investigated by 100$\mu\textrm{m}$ PDMS fiber.

The Change in the Properties of Seeding Pad by the Oil Palm EFB Fiber (오일팜 EFB 섬유 적용에 따른 육묘패드 특성변화)

  • Kim, Dong-Seop;Hendrasetiafitri, Citasari;Sung, Yong Joo;Kim, Chul-Hwan;Kim, Se-Bin
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.47 no.5
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    • pp.15-22
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    • 2015
  • The crop production technologies keep in improving and the cultivation becomes more standardization owing to the significant developments of various agricultural materials. The artificial soil and base system for root could be one of the major technologies for the modern cultivation especially for controlled horticulture. Although the perlite, cocopeat, and peat moss are the major components of the artificial soil and are broadly used for various application, there is a great need for the new alternative materials for overcoming the low nutrition and the possible shortage of raw materials. In this study, the application of oil palm EFB fiber as an alternative materials for artificial soil especially for the seeding pad components was evaluated. The changes in the structural properties and the functional properties such as moisture holding properties were compared by laboratory produced seeding pads with different mixture of oil palm EFB fiber. The addition of fibrillated EFB fiber resulted in the significant increase in durability of the seeding pad, which showed the possible application of EFB fiber to the seeding pad instead of the wood fiber (UBKP). The moisture holding properties and the germination condition characteristics of the EFB fiber showed the slight less than those of the cocopeat, which require more sophisticated study for improving the functional properties of seeding pad made of the EFB fiber.

MANUFACTURING AND INSTALLATION OF THE FIBER PARTS IN THE BOES (보현산천문대 고분산 에셀 분광기(BOES)의 광섬유 부분 제작과 설치)

  • KIM KANG-MIN;JANG BEE-HO;GALAZUTDINOV G.;YOON TAE SEOG
    • Publications of The Korean Astronomical Society
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    • v.19 no.1
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    • pp.47-54
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    • 2004
  • We present the detailed description on the fiber techniques adopted in the BOES: the design concepts and manufacturing of the v grooves, the procedures of the fiber polishing, adhering of the fibers to the v grooves, and the axis alignment of the fiber input and exit. The high efficiency and throughput of the BOES imply that the adopted fiber arts and the other optical components were well designed and properly treated. We learned that the relatively low efficiency of the 80 micron fiber comparing with the 200 and 300 micron fibers comes from the seeing and the guiding effects not from the poor fiber handling.