• Title/Summary/Keyword: Drying temperature

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The Application and Producing of High-Bio full Fat Activated Soybean Flour By Electron Wave Drying Soybean With Far-infrared (원적외선 전자파 건조방법을 이용한 고기능성 전지활성 생대두 미세분말의 제조 및 응용)

  • 박정수
    • Journal of Korea Society of Industrial Information Systems
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    • v.7 no.3
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    • pp.32-37
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    • 2002
  • In this paper soybean flour to weak heat the soybean pulverizing is a nutritive qualities on the demolition by friction fever. in the soybean moisture and protein albumen, it is get tangled the present of soybean to pulverizing of the hesitate to do difficult. full fat activated soybean flour is the same as lipoxygenase a low temperature by handling to ferment of the not demolition is not method. electron wave the drying soybean with far-infrared to using soybean powder of good powder manufacturing method of development industry a people to health contribution

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Surface Electrochemical Study on the Fixation Properties of New Water-borne Preservatives in Red Pine (새로운 수용성(水溶性) 방부방충제(防腐防蟲劑)의 재중(材中) 정착성(定着性)에 관한 계면전기화학적(界面電氣化學的) 특성(特性))

  • Kim, Yeong-Suk
    • Journal of the Korean Wood Science and Technology
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    • v.24 no.4
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    • pp.93-99
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    • 1996
  • In order to investigate the extent of fixation of new water-borne preservatives in blocks of pinus densiflora sapwoods the streaming potential through the column with preservative treated wood was measured at various conditions. The rates of leachability of ingredients in the treated wood were estimated by the measurement of electric conductivity of the solution with the leached components. The solution was also analyzed by Atomic absorption spectrophotometer (AA). As a results, the experimental data indicated that the fixation of CCB, CCFZ and ACQ in wood were relatively unstable. The fixation rates of CCB, CCFZ were improved by increasing heat and drying time. The amounts of the leached ingredients were apparently higher in CCB and CCFZ than in CCA, while the rate of leaching of ACQ was not changed at various drying temperature.

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Simulation of the paper drying using CFD field Model (CFD를 이용한 종이건조의 전산모사)

  • Im, Jeong-Hun;Lee, Seong-Cheol
    • Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
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    • 2004.04a
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    • pp.127-139
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    • 2004
  • The process of papermaking involves water removal on the paper machine wire, in the press section and in the dryer section. In the dryer section, liquid water in the wet web is removed mainly by evaporation. In conventional machine this is achieved by passing the web over a number of steam heated dryer rolls. A drying process of paper on a heated cylinder roll calculated based on a 1-dimensional model which concerns unsteady heat and mass transfer in the direction of paper thickness. In this study, Prediction of moisture contents average paper sheet temperature and volume fraction along a series of cylinder. Independently, developed models is compared using the same reference data. The model is implemented in CFD code, FLUENT, using user-define-function(UDFs).

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The Effects of Multiple Recycling on Deinkability, Optical and Physical Properties of Recycled Paper

  • Shin, Jun-Seop;Min, Choon-Ki
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.31 no.5
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    • pp.18-23
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    • 1999
  • This study examined the effects of multiple recycling on deinkability and properties of recycled paper from laser computer printout(LCPO). First, alkaline paper with a 20% printed area was disintegrated by TAPPI standard disintegrator. After dewatering , the pulp was followed by flotation, handsheet making, and drying at room temperature, in order. A sequence of printing , disintegrating, flotating , handsheet making and drying was one recycling cycle and this cyclic treatment was repeateed from zero to five times. The residual ink content in recycled handsheets by SEM-EDXA and Py-GC analyseswas increased slightly as recycling number increase. After five cycles of recycling the ISO brightness of recycled handsheets dropped to about 90% of the original brightness. However, it had a gain of 10% in opacity. The most of physical properties of recycled handsheets were decreased as recycling numbers increase except of for tear strength.

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Effects of sodium lauryl sulfate on the encapsulation of ethanol by spray-drying technique

  • Lee, Sa-Won;Kim, Chong-Kook
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 1996.04a
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    • pp.288-288
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    • 1996
  • The microcapsules containing ethanol in a water-soluble polymer shell could be formed by the spray-drying technique. A mixed solution of ethanol, water and a water-soluble polymer is spray-dried at the lowest possible temperature to obtain a powder product in which the water is substantially removed and the ethanol is encapsulated in water-soluble polymer shell because of the hydrophillic property of polymer and permeability difference between ethanol and water. In this study, the effect of sodium lauryl sulfate (SLS) on the ethanol content, ethanol encapsulation efficiency and yield were investigated to maximize the microencapsulation of ethanol.

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Purification and characterization of a thermostable glutamate dehydrogenase from a thermophilic bacterium isolated from a sterilization drying oven

  • Amenabar, Maximiliano J.;Blamey, Jenny M.
    • BMB Reports
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    • v.45 no.2
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    • pp.91-95
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    • 2012
  • Glutamate dehydrogenase from axenic bacterial cultures of a new microorganism, called GWE1, isolated from the interior of a sterilization drying oven, was purified by anion-exchange and molecular-exclusion liquid chromatography. The apparent molecular mass of the native enzyme was 250.5 kDa and was shown to be an hexamer with similar subunits of molecular mass 40.5 kDa. For glutamate oxidation, the enzyme showed an optimal pH and temperature of 8.0 and $70^{\circ}C$, respectively. In contrast to other glutamate dehydrogenases isolated from bacteria, the enzyme isolated in this study can use both $NAD^+$ and $NADP^+$ as electron acceptors, displaying more affinity for $NADP^+$ than for $NAD^+$. No activity was detected with NADH or NADPH, 2-oxoglutarate and ammonia. The enzyme was exceptionally thermostable, maintaining more than 70% of activity after incubating at $100^{\circ}C$ for more than five hours suggesting being one of the most thermoestable enzymes reported in the family of dehydrogenases.

Performance Evaluation of a Flash Dryer and a Rotary Kiln Dryer for Upgrading Low Rank Coal (석탄의 고품위화를 위한 기류건조기와 로터리킬른 건조기의 성능 비교평가)

  • Eom, Taegyu;Choi, Sangmin
    • Journal of the Korean Society of Combustion
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    • v.20 no.2
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    • pp.1-13
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    • 2015
  • Drying, which is the oldest and most energy-intensive process, is an essential process for treatment of solid product. The specific procedure to design and evaluate the dryers, which are a rotary kiln dryer and a flash dryer, in case of drying the high-moisture coal was described. From determination of size to the heat and mass balance in one-dimensional model were conducted to evaluate the performance of dryers. Heat consumption, inlet gas temperature and size of the dryers were compared between a rotary kiln dryer and a flash dryer. Further considerations to evaluate the reactor elaborately were also discussed. Performance simulation of dryers along with the design procedure described here will provide helpful basis for understanding the concept of reactor design.

Effect of heat-treatment on the structural and electrical properties of ZnO thin films by the sol-gel method

  • Lee, Seung-Yup;Park, Byung-Ok
    • Journal of the Korean Crystal Growth and Crystal Technology
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    • v.18 no.2
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    • pp.72-75
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    • 2008
  • Zinc oxide (ZnO) thin films were prepared by a sol-gel method. The structural and electrical properties were investigated by varying drying and annealing temperatures. The thin films were coated (250 nm) by spin-coating method on glass substrates. The optimum drying temperature of ZnO thin films was 300$^{\circ}C$ where the resistivity was the lowest and the preferred c-axis orientation was the highest. The annealing was carried out in air and inert atmospheric conditions. The degree of the preferred c-axis orientation was estimated. The highest preferred c-axis orientation was recorded at 600$^{\circ}C$. The preferred c-axis orientation and grain growth resulted in the mobility enhancement of the ZnO thin films, and the lowest resistivity was 0.62${\Omega}{\cdot}cm$ at 600$^{\circ}C$.

Physicochemical and Rheological Properties of Agar by Physical Treatment (물리적 처리에 의한 한천의 물리화학적 및 유통 특성)

  • 김희구;김옥도;손홍주
    • The Korean Journal of Food And Nutrition
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    • v.10 no.2
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    • pp.228-233
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    • 1997
  • The effects of spray drying and extrusion drying on functional properties of agar were investigated to increase the availability of agar in food industry. In case of unmodified and spray-dried agar, gel strength and viscosity were 1,070g/$ extrm{cm}^2$ and 170.50pcs, 820g/$\textrm{cm}^2$ and 17.07cps, respectively, while 523.28g/$\textrm{cm}^2$ and 12.81 in extrusion-dried product. The lowest dissolving onset and conclusion temperature were revealed in extrusion sample, where it was attained in 80 and 11$0^{\circ}C$ of unmodified, 60 and 9$0^{\circ}C$ of spray-dried, and 35 and 8$0^{\circ}C$ of extrusion-dried agar, respectively. Melting and setting in unmodified sample were showed to 110.17 and 40.52, 90.05 and 39.54$^{\circ}C$ in spray dried, and 80.01 and 36.05$^{\circ}C$ in extrusion-dried agar, respectively.

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Preparation of Al2O3-ZrO2 Composite Powders by the Use of mulsions : II. Emulsion-Hot Kerosene Drying Method (에멀젼을 이용한 Al2O3-ZrO2 복합분체의 제조 : II. 에멀젼-가열석유 증발법)

  • 현상훈;백종규
    • Journal of the Korean Ceramic Society
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    • v.25 no.3
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    • pp.284-292
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    • 1988
  • Alumina-zirconia composite powders for the purpose of improving fracture toughness and thermal shock resistance of alumina were prepared by the emulsion-kerosene drying method. The average particle size of composite powders was less then 1 $\mu\textrm{m}$ and their shapes were spherical. It was shown that the average particle size of composite powders decreased with the concentration of metal-salt in solution and the amount of span 80 added when preparing emulsions. The structure of all zirconia in composite powders heat-treated at 1200$^{\circ}C$ was a tetragonal form at room temperature. This result implied that fine zirconia particles were homogeneously dispersed in the alumina matrix.

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