• 제목/요약/키워드: Cure Characteristics

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A Study on Food Cure for Stomach Diseases - Focusing on Eumsunjungyo·Singnyojaebyeong, Singnyochanyo - (비위(脾胃)질환의 식치(食治)에 관한 소고(小考) - 『음선정요(飮膳正要)·식료제병(食療諸病)』, 『식료찬요(食療纂要)』를 중심으로 -)

  • Hong, Jin-im
    • Journal of Korean Medical classics
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    • v.29 no.2
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    • pp.1-12
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    • 2016
  • Objectives : This study selected the food ingredients mainly appearing in the stomach-disease-related articles from Eumsunjungyo Singnyojaebyeong and Singnyochanyo, and investigated their effects to turn these data into references for modern people, use the food therapy of ancestors for modern life, and prevent and cure stomach diseases of modern people due to unhealthy lifestyle. Methods : This study selected the stomach-related food therapies from Eumsunjungyo and Singnyochanyo, and organized the therapies by chief virtue, effect, ingredient, and recipe. Also, this study analyzed and investigated characteristics, tastes, and target organs of the food ingredients in the recipes. Results : There are 8 stomach-related recipes among 61 recipes in Eumsunjungyo Singnyojaebyeong, and there are total 34 types of stomach-related recipes in Singnyochanyo including 27 types of BiwiBuBanui Five and 7 types of GutoBuHaeyeokByeonggyeonBiwi fifteen. Both Eumsunjungyo Singnyojaebyeong and Singnyochanyo contains food therapies for diseases due to week stomach. Most recipes in Singnyochanyo uses only food ingredients, whereas most recipes in Eumsunjungyo Singnyojaebyeong uses ingredients which can be used as medicine. Conclusions : The food therapies in Eumsunjungyo Singnyojaebyeong and Singnyochanyo proves that people in all regions have used food to cure diseases from old times. On the other words, people have clinically used the characteristics, tastes, and cooking forms of food ingredients for a long time. Thus, this study can be a reference for creating another food therapy.

A Study on the Effect of Reactive Plasticizer (반응성(反應性) 가소제(可塑劑)의 효과(效果)에 관한 연구(硏究))

  • Park, Gun-Rok;Kim, Hong-Sun;Choi, Sei-Young
    • Elastomers and Composites
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    • v.27 no.4
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    • pp.247-254
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    • 1992
  • The purpose of this dissertation is to study the vulcanization characteristics, compression set and other physical properties of NBR vulcanizates according to the various plasticizer and its content. Vulcanization characteristics were investigated by using cure that has obtained by means of rheometer and Mooney viscometer. The result of physical properties, vulcanization characteristics are as fellows. 1. The results of test for optimum cure time in vulcanization characteristics of NBR compounds indicated the rapidity of scorch time according to the increase of amounts of plasticizer. 2. In the test of compression set property, LCR was the best effect. 3. In the test of oil resistance, LCR was the best effect.

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AE Characteristics on Microscopic Failure Behavior of Carbon/Epoxy Comosite Prepared by Cocure and Precure Process (Cocure/Precure 경화공정에 의해 제조된 Carbon/Epoxy 복합재료의 미시적 파손거동에 대한 AE 특성)

  • Lee, Jin-Gyeong;Lee, Jun-Hyeon;Lee, Min-Rae;Choe, Heung-Seop
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.24 no.10 s.181
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    • pp.2520-2528
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    • 2000
  • Mechanical and physical properties of composite materials make a great difference due to their cure process condition. In order to clarify the effect of cure process condition on the microscopic damage behavior and failure mechanism of Carbon/Epoxy composites, three point bend test has been performed. For this purpose, two kinds of specimens with single adhesive and multiple adhesive layers were prepared. For single adhesive layer, four different types of specimen were used, that is, non-sanding, sanding, cocured, laminated specimens. Three different types of specimen were also used for the multiple adhesive layer, non-sanding, sanding, cocured specimens. Acoustic emission technique has also been employed to monitor the damage progresses associated with each micro-failure mechanism. The characteristics of AE parameters associated with micro-failure mechanism of each specimen were discussed.

Effects of Environmental Factors such as Temperature and Ozone Concentration on the Properties of BR/Crystalline Rubber Blend (BR고무/결정성고무 블렌드의 물성에 미치는 온도 및 오존농도 등의 환경인자의 영향)

  • Park, Chan-Young;Lee, Won-Kee;Min, Seong-Kee
    • Elastomers and Composites
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    • v.45 no.1
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    • pp.44-50
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    • 2010
  • The butadiene rubber(BR) blends with chloroprene rubber(CR) were prepared by mechanical mixing method. Cure characteristics, mechanical properties, ozone resistance properties and dynamic mechanical properties were subsequently examined. The properties of ozone resistance of pure BR was significantly improved through blending with 50 wt% CR. Dynamic characteristics determined from a Rheovibron generally showed two glass transition($T_g$) for the entire blends, $tan{\delta}$ peak monotonically shifted toward the higher temperature with the increasing content of CR. Optimum cure time of compound was significantly lengthened with loading of CR.

Cure Behaviors and Physical Properties of Recycled/Virgin Nitrile Rubber (NBR) Blends by High Temperature Shear-Crushing Technique (고온전단분쇄기술을 이용한 재생/신재 니트릴고무(NBR) 블렌드물의 가황거동 및 물리적 특성)

  • Park, Hyun-Ho;Kim, Joon-Hyung;Lee, Chang-Seop;Na, Seong-Taek
    • Applied Chemistry for Engineering
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    • v.16 no.6
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    • pp.842-847
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    • 2005
  • Virgin NBR and recycled NBR particles, which were pulverized from NBR scraps by high temperature shear-crushing technique, were blended with different mixing ratio. The effects of the recycled NBR content on the cure characteristics and physical properties of these blends were investigated and resistance properties of these blends to heat and various fluids were also studied. The study of cure characteristics showed that the viscosity increased but the scorch time decreased. The physical properties of rubber blends were improved with the addition of the recycled NBR for heat resistance and various fluid tests.

Characteristics of Crosslinked Resin Modified with Nitriles (니트릴에 의해 개질된 가교구조 수지의 특성)

  • Sim, Mi-Ja
    • Korean Journal of Materials Research
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    • v.9 no.4
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    • pp.373-377
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    • 1999
  • The cure mechanicsm and cure kinetics of diglycidyl ether of bisphenol A(DGEBA)/4,4'-methylene dianiline(MDA)/nitrile(MN, SN, GN) systems were studied by FT-IR and DSC to develop new applications in the biomedical polymer fields. The network structure of the DGEBA/MDA system was changed to the chain-extended network structure by the addition of nitriles. The reactions contributed to the chain extension were the primary amine-nitrile and hydroxyl-nitrile reactions. The chain-extended network structure could be indirectly proved by the decrement of T\ulcorner and the increment of impact strength with the increasing nitrile content. The cure rate of DGEBA/MDA/nitrile system was lower than that of DGEBA/MDA system due to the disturbance of nitrile group in the reaction of primary amine and epoxide groups.

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Development of UV curable polymer and curing characteristics estimation for UV nanoimprint (UV 나노임프린트를 위한 UV 경화성 수지 개발 및 경화 특성 평가)

  • 이진우;이승재;이응숙;정준호;조동우
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2003.06a
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    • pp.1220-1223
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    • 2003
  • The UV nanoimprint technology uses the UV light as the energy source. Because the imprint process is carried out in room temperature and low pressure, this technology has its own merits compared to the thermal nanoimprint. However, in UV nanoimprint technology, a resin which has low viscosity is essential for the improvement of accuracy. In this research, a resin (named as IMS01) which has relatively low viscosity was developed. And a measurement system was developed in order to measure the degree of cure of the resin. The measurement system which is composed of FT-IR, UV light source and optical guide can measure the degree of cure in real time. From the experimental results, it was found that the IMS01 is cured more rapidly than existing resin (PAK01).

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Dielectric Properties of Glass Fiber Reinforced Epoxy Composites by Cure under Pressure (가압 겔화법에 의한 에폭시 복합 재료의 유전적 특성)

  • 곽영순;신중홍;박정후
    • The Transactions of the Korean Institute of Electrical Engineers
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    • v.38 no.4
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    • pp.292-297
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    • 1989
  • To achieve fiber/resin reinforced composites with high quality (void-free, uniform compaction), a basic understanding of the principal factors related to a thermal cycle to cure the matrix and a pressure to compact the system is necessary. In this paper, some dielectric and mechanical properties of glass cloth reinforced epoxy composites are measured as a function of fabrication conditions, where the time that the pressure is applied to the sample during the cure process is controlled. Both the tensile strength and frequency characteristics of the sample are improved significantly when the pressure is applied at the start point of gelling.

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Influence of Silane Coupling Agent on Properties of Filled Styrene-Butadiene Rubber Compounds

  • Park, Sung-Seen
    • Macromolecular Research
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    • v.8 no.6
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    • pp.285-291
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    • 2000
  • Influence of silane coupling agent, bis-(3-(triethoxisilyl)-propyl)-tetrassulfide, on cure characteristics and bound rubber content of filled styrene-butadiene rubber (SBR) compounds and on physical properties of the vulcanizates was studied. Carbon black-filled and silica-filled compounds were compared. Content of the bound rubber increased with increased content of the silane coupling agent and this trend was shown more clearly in the silica-filled compounds. Optimum cure time of the carbon black-filled compound increased with increase of the silane content, while that of the silica-filled one decreased. Cure rate of the carbon black-filled compound became slower as the silane content increased while that of the silica-filled one became faster. By increasing the silane content, the minimum torque decreased and the delta torque increased. Physical properties of the silica-filled vulcanizate were found to be improved by adding the silane coupling agent. However, for the carbon black-filled vulcanizates, the tensile strength and tear resistance decreased with increase of the silane content. The differences between the carbon black-filled and silica-filled compounds were explained by difference in the reactivities of the fillers with the silane.

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