• 제목/요약/키워드: Dry heat treatment

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Comparison of Antioxidant Activity and Flavor Effect According to Processing Method of Red ginseng and Herbal Medicine (홍삼 및 생약재의 가공방법에 따른 항산화활성 특성 및 향미 효과 비교)

  • Hyun Kyoung Kim;Ho Tae Kim;Pil Jae Lee
    • The Journal of the Convergence on Culture Technology
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    • v.9 no.6
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    • pp.1007-1016
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    • 2023
  • In this study, the effect of functional substances such as polyphenols and flavonoids contained in large quantities in red ginseng and herbal medicines on the antioxidant activity properties and flavor effect were investigated by increasing the content and activity of functional ingredients by convert red ginseng through a steaming heat-drying process compared to the traditional dry processing method of ginseng and herbal medicines. According to the experimental results, the addition of pre-heat treatment significantly increased antioxidant properties such as DPPH radical scavenging ability, polyphenols, and flavonoids. In addition, during the steaming and heat-dried red ginseng manufacturing process, the amino-carbonyl browning reaction was promoted, resulting in increased brownness and a savory flavor. However, the content of ginsenosides, the main medicinal ingredient in red ginseng, became the main cause of the bitter and harsh taste. In addition, the bitter and harsh taste of red ginseng has been significantly improved by roasting and producing powder, but on the other hand, Radix Angelicae sinensis, polymorphic angelica and Peony, which are used as main medicinal ingredients in oriental medicine for nutritional tonic prescriptions such as 10 herbal medicine and 4 herbal medicine have a very strong herbal medicine-specific flavor and have a bitter and harsh taste. It is so strong that in order to use it as an instant extraction material, it was reviewed that a steaming and heating manufacturing method was needed during the manufacturing process.

Electrical Characteristics According to the Manufacturing Process of the Flexible Li/MnO2 Primary Cell (플렉서블 Li/MnO2 일차전지의 제조공정에 따른 전기적 특성)

  • Lee, Mi-Jai;Chae, Yoo-Jin;Kim, Jin-Ho;Hwang, Jong-Hee;Park, Sang-Sun
    • Korean Journal of Materials Research
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    • v.22 no.12
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    • pp.717-721
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    • 2012
  • Manganese dioxide ($MnO_2$) is one of the most important cathode materials used in both aqueous and non-aqueous batteries. The $MnO_2$ polymorph that is used for lithium primary batteries is synthesized either by electrolytic (EMD-$MnO_2$) or chemical methods (CMD-$MnO_2$). Commonly, electrolytic manganese dioxide (EMD) is used as a cathode mixture material for dry-cell batteries, such as a alkaline batteries, zinc-carbon batteries, rechargeable alkaline batteries, etc. The characteristics of lithium/manganese-dioxide primary cells fabricated with EMD-$MnO_2$ powders as cathode were compared as a function of the parameters of a manufacturing process. The flexible primary cells were prepared with EMD-$MnO_2$, active carbon, and poly vinylidene fluoride (PVDF) binder (10 wt.%) coated on an Al foil substrate. A cathode sheet with micro-porous showed a higher discharge capacity than a cathode sheet compacted by a press process. As the amount of EMD-$MnO_2$ increased, the electrical conductivity decreased and the electrical capacity increased. The cell subjected to heat-treatment at $200^{\circ}C$ for 1 hr showed a high discharge capacity. The flexible primary cell made using the optimum conditions showed a capacity and an average voltage of 220 mAh/g and 2.8 V, respectively, at $437.5{\mu}A$.

Approaching Chronic Tension-type Headache through Sasang Constitutional Therapy: A Series of 3 Cases who were classified as the Soeum Type and Taeeum Type (만성 긴장성 두통을 호소하는 소음인(少陰人), 태음인(太陰人) 환자 3례)

  • Oh, Hye-Won;Pak, Yun-Seong;Lee, Jun-Hee;Koh, Byung-Hee;Lee, Eui-Ju
    • Journal of Sasang Constitutional Medicine
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    • v.25 no.4
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    • pp.384-395
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    • 2013
  • Objectives We report a series of 3 chronic tension-type headache cases who were constitutionally typed as the Soeum type, Taeeum type and treated with Dangguibaekhaoguanjung-tang, Chungshimyeonja-tang or Chunghyulganggui-tang. Methods In treating 1 patient who was constitutionally typed as the Soeum type, Case 1 fell into the category of the Taeeum symptomatology, 2 patients who were constitutionally typed as the Taeeum type, Case 2 and Case 3 fell into the category of Dry-Heat symptomatology. Each patient was given Sasang medication according to protocol: Dangguibaekhaoguanjung-tang to Case 1, Chungshimyeonja-tang to Case 2, Chunghyulganggui-tang to Case 3. On admission day and approximately 2 weeks later, patients evaluated their pain and quality of life using SF-36 and HIT-6. The patients symptoms were observed daily and NRS scores were recorded daily. Results and Conclusions 2 Patients(Case1, Case2) showed improvement in their NRS scores, SF-36 scores and HIT-6 scores. 1 patient(Case3) showed improvement in NRS scores, but worse SF-36 scores and no improvement in HIT-6 scores. Treating chronic tension-type headache based on Sasang Constitutional therapy was found to be effective for managing pain. The treatment protocol suggested in this investigation should be explored and verified in future studies.

Effect of Improved Cooling System on Reproduction and Lactation in Dairy Cows under Tropical Conditions

  • Suadsong, S.;Suwimonteerabutr, J.;Virakul, P.;Chanpongsang, S.;Kunavongkrit, A.
    • Asian-Australasian Journal of Animal Sciences
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    • v.21 no.4
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    • pp.555-560
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    • 2008
  • The effects of utilizing evaporative cooling system equipped with tunnel ventilation on postpartum ovarian activities, energy balance and milk production of early lactating dairy cows under hot and humid climates were studied from parturition to 22 wk postpartum. Thirty-four crossbred Holstein-Friesian (93.75% HF$\times$.25% Bos indicus) primiparous cows were randomly assigned to one of two groups. Cooled cows (n = 17; treatment) were housed in the tunnel ventilated barn equipped with evaporative cooling system and uncooled (n = 17; control) were housed in the naturally ventilated barn without supplemental cooling system. Cooled cows had greater (p<0.05) dry matter intake and milk production than uncooled cows. Days to the energy balance (EB) nadir did not differ between groups. However, days to equilibrium EB for uncooled cows was longer (p<0.05) than for cooled cows. There was no significant difference in postpartum anovular condition between cooled and uncooled cows. The interval from parturition to first postpartum ovulation did not differ between groups ($31.4{\pm}4.3$ and $26.1{\pm}3.6$ day, respectively). These results suggest that the evaporative cooling and tunnel ventilation has the potential to decrease the severity of heat stress and improve both milk production and metabolic efficiency during early lactation without affecting reproductive function in dairy cows under hot and humid climates.

THE STUDY OF FLEXURAL STRENGTH OF VARIOUS ZIRCONIA CERAMICS (수종 지르코니아 세라믹의 굴곡강도에 관한 연구)

  • Park Jae-Hong;Hwang Jung-Won;Shin Sang-Wan
    • The Journal of Korean Academy of Prosthodontics
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    • v.42 no.2
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    • pp.142-153
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    • 2004
  • Statement of problem: Increasing demand of esthetic restorations made lots of kinds of ceramic materials. Among them, zirconia has been being focused by many dentists. But, mechanical properties of zirconia were still unclear. Purpose : The purposes of this study were to analyze the flexural strength of various zirconia ceramics which had been currently used for clinic i.e., In-Ceram Zirconia(Vita Zahnfabrik, Bad $S\"{a}ckingen$, Germany), Celay Zirconia(Vita Zahnfabrik, Bad $S\"{a}ckingen$, Germany) and CAD/CAM Zirconia (Adens Zi-Ceram. Seoul , Korea). Material and methods: The four point bending test(ASTM Cl161) was used to measure the flexural strength of a specimen before and after circular heat treatment and fatigue loading. Results : 1. The average value of flexural strengths of CAD/CAM Zirconia, Celay Zirconia, In-Ceram Zirconia in dry condition were 806.5 MPa, 669.9 MPa, 605.6 MPa, respectively. There was a statistically significant difference in strength among the types (P<0.05). 2. After thermocycling, the average flexural strengths of CAD/CAM Zirconia, Celay Zirconia, In-Ceram Zirconia were 791.2 MPa, 604.2 MPa, 605.4 MPa, respectively. CAD/CAM Zirconia showed statistically significant higher strength(P<0.05). The others showed no significant difference after thermocycling(P>0.05). 3. After fatigue loading in wet condition. the average flexural strengths of CAD/CAM Zirconia, Celay Zirconia, In-Ceram Zirconia were 806.0 MPa, 674.9 MPa, 601.7 MPa, respectively. There was a significant difference in strength among the types(P<0.05). 4. There was no statistically significant difference in strength of the specimens according to experimental methods except for before and after thermocycling in Celay Zirconia(P>0.05). Conclusion: Besides high esthetic quality, zirconia had sufficiently high mechanical strength.

Pelleting in Associated with Sodium Monensin Increases the Conjugated Linoleic Acids Concentration in the Milk of Dairy Cows Fed Canola Seeds

  • De Marchi, Francilaine Eloise;Romero, Jakeline Vieira;Damasceno, Julio Cesar;Grande, Paula Adriana;Zeoula, Lucia Maria;dos Santos, Geraldo Tadeu
    • Asian-Australasian Journal of Animal Sciences
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    • v.28 no.8
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    • pp.1095-1104
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    • 2015
  • To evaluate the effects of the pelleting and the addition of sodium monensin on production, the chemical and lipid composition of milk and butter physical characteristics, 4 Holstein dairy cows (135 days of lactation) with an average milk production of 14.7 kg/d, were supplemented with a concentrate containing ground canola seeds. The cows were assigned to a $4{\times}4$ Latin square design with a $2{\times}2$ factorial arrangement of treatments: i) ground maize, soybean meal, mineral and vitamin supplements, and ground canola seeds (CG); ii) CG concentrate with 31.5 mg of monensin added per kg of dry matter (DM); iii) CG pelleted concentrate; iv) CG concentrate with monensin addition pelleted. There was no difference in milk production and composition. The addition of monensin increased milk concentration of polyunsaturated fatty acids (PUFA), the PUFA/saturated fatty acids (SFA) ratio, and omega 6. The pelleting increased the concentration of monounsaturated fatty acids, the PUFA/SFA ratio, and the omega 6/omega 3 ratio, but decreased the concentration of SFA. The association between pelleting and the addition of monensin increased the concentration of conjugated linoleic acids by 46.9%. The physical characteristics of butter were not affected by the evaluated diets. We concluded that the concentrate with 31.5 mg of monensin added per kg DM basis combined with the pelleting improves the lipid composition of milk from Holstein cows that are on pasture and supplemented with ground canola seeds, without changing the production, milk composition, and spreadability of butter.

Energy Requirements for Maintenance and Growth of Male Saanen Goat Kids

  • Medeiros, A.N.;Resende, K.T.;Teixeira, I.A.M.A.;Araujo, M.J.;Yanez, E.A.;Ferreira, A.C.D.
    • Asian-Australasian Journal of Animal Sciences
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    • v.27 no.9
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    • pp.1293-1302
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    • 2014
  • The aim of study was to determine the energy requirements for maintenance and growth of forty-one Saanen, intact male kids with initial body weight (BW) of $5.12{\pm}0.19$ kg. The baseline (BL) group consisted of eight kids averaging $5.46{\pm}0.18$ kg BW. An intermediate group consisted of six kids, fed for ad libitum intake, that were slaughtered when they reached an average BW of $12.9{\pm}0.29$ kg. The remaining kids (n = 27) were randomly allocated into nine slaughter groups (blocks) of three animals distributed among three amounts of dry matter intake (DMI; ad libitum and restricted to 70% or 40% of ad libitum intake). Animals in a group were slaughtered when the ad libitum-treatment kid in the group reached 20 kg BW. In a digestibility trial, 21 kids (same animals of the comparative slaughter) were housed in metabolic cages and used in a completely randomized design to evaluate the energetic value of the diet at different feed intake levels. The net energy for maintenance ($NE_m$) was $417kJ/kg^{0.75}$ of empty BW (EBW)/d, while the metabolizable energy for maintenance ($ME_m$) was $657kJ/kg^{0.75}$ of EBW/d. The efficiency of ME use for NE maintenance ($k_m$) was 0.64. Body fat content varied from 59.91 to 92.02 g/kg of EBW while body energy content varied from 6.37 to 7.76 MJ/kg of EBW, respectively, for 5 and 20 kg of EBW. The net energy for growth ($NE_g$) ranged from 7.4 to 9.0 MJ/kg of empty weight gain by day at 5 and 20 kg BW, respectively. This study indicated that the energy requirements in goats were lower than previously published requirements for growing dairy goats.

Radioactive Wastes Vitrification Using Induction Cold Crucible Melter: Characteristics of Vitrified Form (유도 가열식 저온용융로를 이용한 방사성페기물 유리화: 유리 고화체 특성)

  • 김천우;박은정;최종락;지평국;최관식;맹성준;박종길;신상운;송명재
    • Journal of the Korean Ceramic Society
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    • v.39 no.6
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    • pp.576-581
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    • 2002
  • In order to simultaneously vitrify the ton Exchange Resin(IER) and Dry Active Waste(DAW) generated from the Nuclear Power Plants, a vitrification pilot test was conducted using an induction cold crucible melter. The PCT result evaluating the chemical durability of the vitrified from showed that the final glass was more durable than the benchmark glass. Liquidus temperature for the final vitrified form was 1048 K(775$\^{C}$) fur heat treatment experiments. The value of the compressive strength for the vitrified form was ninety times higher than the regulation limit, 34 kg/㎠. The glasses on bottom, middle and top of the CCM were homogeneous with no secondary phase. The precipitation of the magnetic metal phase was able to be avoided by simultaneously fEeding of DAW with IER containing strongly reducing organics. Volume reduction factor of 74 was achieved through the vitrification Pilot test for mixed waste.

The Bibliographical Study on the Relativity of Lung and Jo (Dryness; 燥) in Oriental Medicine (동의학(東醫學)에서 폐(肺)와 조(燥)의 상관성(相關性)에 대(對)한 문헌적(文獻的) 고찰(考察))

  • Kim, Min-Ho;Han, Sang-Hwan
    • The Journal of Internal Korean Medicine
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    • v.10 no.1
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    • pp.105-123
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    • 1989
  • Yuk Gi (六氣) in oriental medicine have influence on the body and, the body which adapt itself to the change of Yuk Gi, can maintain the activity of life, so five vital organs of the body have relation to Yuk Gi. The relation between Lung and Jo (燥) is well described from Whang Jae Nai Kyung (黃帝內經), the oldest book in oriental medicine, to the old books of Chung (淸) dynasty and modern documents. By the way, when autumn has come and the environment become dry, clear and mild ability of lung is losed. It's because dryness evil (燥邪) occured the trouble of Lung. The following results were obtained according to these facts which is considreed peviodically and bibliographically. 1. According to flourishing the functional activities of dryness (燥氣), as reducing the functional activities of water (水氣) of upper portion of the body cavity (上焦), Kidny Water (腎水) is not nutrited and Fire-Heat (火熱) is activiting, which is evoking the disease of Lung. 2. In the disease of Lung, there are many diseases because of dryness evil (燥邪), thinking that, which methods of treatment are the principal one of 'Clear up the lung and moisten dryness (淸肺潤煥)'. I found that Lung and Jo (燥) have the relation of intimacy. 3. Creating the vital essence of the kidney (腎水) to the functional activities of the lung (肺氣) is in prosperous condition, the functional activities of fire (火氣) stabilize the function of Lung become normal condition which wear said in the literary.

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Finishing of Interior Fabric Using Soluble Micro-fiber and low melting Yarn (용출형 극세사와 저온 융착사를 이용한 인테리어 직물의 가공)

  • Ahn, Young-Moo
    • Journal of Fashion Business
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    • v.13 no.2
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    • pp.78-86
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    • 2009
  • When scouring and contraction finishing at $90^{\circ}C$ using Relaxer or Rotary Washer contraction and weight loss ratio in warp and weft directions were excellent. Also surface state of fabric after drying or sanding treatment was excellent without crease. Low melting polyester fabric showed a complete melting bond by heat setting(P/S) at above $160^{\circ}C$. The alkali hydrolysis reaction of polyester showed the breakpoint in the weight loss behavior test, polyester yarn showed a breakpoint ranging from 25% to 28%. This is due to the difference of the hydrolysis rate between regular polyester and soluble polyester. Initially the soluble polyester was eluted and micro-fibrillized 5 times faster than a regular polyester. At a later time, a regular polyester was reduced weight to impart a proper flexibility and drape property to the fabric. As a result of surface sanding finishing, the surface of interior fabric showed a surface state most stabilized when using Mesh No. 220 in mono 0.2d after elution finishing. When the rotation direction of sanding roller was pro-, pro-, pro-, and retro-direction, a directional effect of tuft was not shown, a writing effect as suede was exhibited and a surface state was even. Sublimation fastness was 3-4 class for polyester and 2-4 class for nylon. Light fastness 3-4 class after lapse of 100 hours and 2-4 class after lapse of 160 hours. Abrasion fastness was 3-4 class on wet and 4-5 class on dry Laundry fastness was 2-4 class. As such, the abrasion fastness is slightly reduced upon wetting and the use thereof for interior is excellent, whereas laundry fastness is slightly lowered.