• Title/Summary/Keyword: Dry heat

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Korean Medical Treatment Focusing on Cheongsim-tanggamibang for Hypertriglyceridemia Patient : A Case report (고중성지방혈증 환자에 대한 청심탕가미방 중심의 한방치료 : 증례보고)

  • Oh, Ji-Won;Lee, Jun-Hee
    • Journal of Sasang Constitutional Medicine
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    • v.32 no.3
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    • pp.55-63
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    • 2020
  • Introduction The purpose of this study was to investigate the effect of Cheongsim-tanggamibang on hypertriglyceridemia in a 37-year-old Taeeum- type male patient. Case presentation A 37-year-old male patient complained of hyperhidrosis and hot sensation was diagnosed with hypertriglyceridemia by blood test and 'Liver-Heat Lung-Dry (Ganyeol-paeJo) severe pattern' of Korean Medicine. Cheongsim-tanggamibang was executed twice everyday during 2 months from July, 23rd to September, 21st of 2019. The effectiveness of Cheongsim-tanggamibang was assessed with blood test. Conclusions After the Korean traditional medicine treatment with Cheongsim-tanggamibang prescription, blood triglyceride and total cholesterol levels decreased, and chief complaining symptoms with hot sensation also improved.

Cooling Enhancement Potential of an Air-Cooled Condenser by Evaporative Cooling (증발냉각에 의한 공랭 응축기의 성능향상 가능성에 관한 연구)

  • 이대영;백영진;김영일
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.16 no.3
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    • pp.203-210
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    • 2004
  • This paper describes the potential advantages in applying evaporative cooling to air-cooled condensers. The cooling characteristics of an air-cooled condenser with its surface fully covered with thin water film are investigated and compared with that of an air-cooled condenser with usual dry surface. By applying the evaporative cooling, the cooling performance of the condenser is shown to improve enormously. When the outdoor air is 35$^{\circ}C$ and 40% in relative humidity, the condensing temperature of the refrigerant is decreased by 2$0^{\circ}C$. Even when the incoming air is fully saturated with water vapor, the evaporation from the wet surface occurs to cause a decrease in the condensing temperature by 1$0^{\circ}C$. The main reason for this improvement is assessed as the addition of an efficient cooling mechanism which is the water evaporation resulting in latent heat absorption.

Thermal Behavior of Energy Pile Considering Ground Thermal Conductivity and Thermal Interference Between Piles (주변 지반의 열전도도를 고려한 PHC 에너지파일의 열 거동 및 파일 간 열 간섭 현상에 대한 수치해석 연구)

  • Go, Gyu Hyun;Yoon, Seok;Park, Do Won;Lee, Seung-Rae
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.33 no.6
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    • pp.2381-2391
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    • 2013
  • In general, ground's thermal properties, types of heat exchanger, operational method, thermal interference between piles can be considered as key factors which affect the thermal performance of energy pile. This study focused on the effect of these factors on the performance by a numerical model reflecting a real ground condition. Depending on the degree of saturation of ground, pile's heat transfer rate showed a maximum difference of three times, and the thermal resistance of pile made a maximum difference of 8.7%. As for the type of heat exchanger effects on thermal performance, thermal efficiency of 3U type energy pile had a higher value than those of W and U types. The periodic operation (8 hours operation, 16 hours pause) can preserve about 20% of heat efficiency compared to continuous operation, and hence it has an advantage of preventing the thermal accumulation phenomenon. Thermal interference effect in group piles may vary depending on the ground condition because the extent decreases as the ground condition varies from saturated to dry. The optimal separation distance that maintains the decreasing rate of heat efficiency less than 1% was suggested as 3.2D in U type, 3.6D in W type, and 3.7D in 3U type in a general ground condition.

Thermal-Hydraulic Research Review and Cooperation Outcome for Light Water Reactor Fuel (경수로핵연료 열수력 연구개발 분석 및 연산학 협력 성과)

  • In, Wang Kee;Shin, Chang Hwan;Lee, Chi Young;Lee, Chan;Chun, Tae Hyun;Oh, Dong Seok
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.40 no.12
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    • pp.815-824
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    • 2016
  • The fuel assembly for pressurized water reactor (PWR) consists of fuel rod bundle, spacer grid and bottom/top end fittings. The cooling water in high pressure and temperature is introduced in lower plenum of reactor core and directed to upper plenum through the subchannel which is formed between the fuel rods. The main thermal-hydraulic performance parameters for the PWR fuel are pressure drop and critical heat flux in normal operating condition, and quenching time in accident condition. The Korea Atomic Energy Research Institute (KAERI) has been developing an advanced PWR fuel, dual-cooled annular fuel and accident tolerant fuel for the enhancement of fuel performance and the localization. For the key thermal-hydraulic technology development of PWR fuel, the KAERI LWR fuel team has conducted the experiments for pressure drop, turbulent flow mixing and heat transfer, critical heat flux(CHF) and quenching. The computational fluid dynamics (CFD) analysis was also performed to predict flow and heat transfer in fuel assembly including the spent fuel assembly in dry cask for interim repository. In addition, the research cooperation with university and nuclear fuel company was also carried out to develop a basic thermal-hydraulic technology and the commercialization.

Influence of Ionophore Supplementation on Growth Performance, Dietary Energetics and Carcass Characteristics in Finishing Cattle during Period of Heat Stress

  • Barreras, A.;Castro-Perez, B.I.;Lopez-Soto, M.A.;Torrentera, N.G.;Montano, M.F.;Estrada-Angulo, A.;Rios, F.G.;Davila-Ramos, H.;Plascencia, A.;Zinn, R.A.
    • Asian-Australasian Journal of Animal Sciences
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    • v.26 no.11
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    • pp.1553-1561
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    • 2013
  • Forty-eight crossbred heifers ($378.1{\pm}18$ kg) were used in a 56-d feeding trial (four pens per treatment in a randomised complete block design) to evaluate the influence of ionophore supplementation on growth performance, dietary energetics and carcass characteristics in finishing cattle during a period of heat stress. Heifers were fed a diet based on steam-flaked corn (2.22 Mcal $NE_m/kg$) with and without an ionophore. Treatments were: i) control, no ionophore; ii) 30 mg/kg monensin sodium (RUM30); iii) 20 mg/kg lasalocid sodium (BOV20), and iv) 30 mg/kg lasalocid sodium (BOV30). Both dry matter intake (DMI) and climatic variables were measured daily and the temperature humidity index (THI) was estimated. The maximum THI during the study averaged 93, while the minimum was 70 (THI average = $79.2{\pm}2.3$). Compared to controls, monensin supplementation did not influence average daily gain, the estimated NE value of the diet, or observed-to-expected DMI, but tended (p = 0.07) to increase (4.8%) gain to feed. Compared to controls, the group fed BOV30 increased ($p{\leq}0.03$) daily gain (11.8%), gain to feed (8.3%), net energy of the diet (5%), and observed-to-expected DMI (5.2%). Daily weight gain was greater (7.6%, p = 0.05) for heifers fed BOV30 than for heifers fed MON30. Otherwise, differences between the two treatments in DMI, gain to feed, and dietary NE were not statistically significant (p>0.11). Plotting weekly intakes versus THI, observed intake of controls was greater (p<0.05) at THI values ${\leq}77$ than ionophore groups. When THI values were greater than 79, DMI of control and MON30 were not different (p = 0.42), although less than that of groups fed lasalocid (p = 0.04). Variation in energy intake was lower (p>0.05) in the ionophores group (CV = 1.7%) than in the control group (CV = 4.5%). Inclusion of ionophores in the diet resulted in relatively minor changes in carcass characteristics. It is concluded that ionophore supplementation did not exacerbate the decline of DM intake in heat-stressed cattle fed a high-energy finishing diet; on the contrary, it stabilised feed intake and favoured feed efficiency. Ionophore supplementation reduced estimated maintenance coefficients around 10% in finishing cattle during a period of heat stress. This effect was greatest for heifers supplemented with 30 mg lasalocid/kg of diet.

Selection of Heat-tolerant Potato Clones by In Vitro Tuberization from True Potato Seeds (감자 眞正種子의 器內小塊莖 形成에 의한 耐暑性 系統 選拔)

  • 김현준;김영화;유승렬;김병현;김정간
    • Korean Journal of Plant Tissue Culture
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    • v.24 no.2
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    • pp.77-81
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    • 1997
  • For the early selection of heat-tolerant clones, the true potato seeds of 750 clones were obtained by several cross combinations : $CIP\;575015\;{\times}\;katahdin,\;CIP\;575015\;{\times}\;B6603-6,\;84\;I\;35-4\;{\times}\;katahdin,\;CIP\;575015\;{\times}\;NookSack,\;and\;CIP575015\;{\times}\;Superior.$ The ratios of in vitro tuberization at 3$0^{\circ}C$ were decreased by 43% in all cross combinations compared with at 2$0^{\circ}C$. In particular, tuberization rate of $CIP575015\;{\times}\;katahdin$ cross at 3$0^{\circ}C$ was only 21%. On the other hand, the rate of tuberization of $CIP575015\;{\times}B6603-6$ cross was 58 % at 3$0^{\circ}C$, so this cross combination was thought to be good heat-tolerant clone. To screen the heat-tolerant clones in lower land during high temperature period, microtubers were cultivated in Kangnung, and the characters of tubers and productivity were examined. Among screened clones, one clone at 2$0^{\circ}C$ and three clones at 3$0^{\circ}C$ were shown to be heat-tolerant. The yield of 89ML75-8 was 88% more than that of Superior, and dry weight rate of 89 ML64-11 was 18.8%. Therefore, 89ML64-11 clone was considered as a good cultivar for processing.

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The Comparative Analysis of Drying-Conditions, -Rates, -Defects and Yield, and Heat-Efficiency in Solar-Dehumidification-Drying of Oaks With Those in Conventional Air-, Semi-Greenhouse Type solar-, and Kiln- Drying (참나무류(類)의 제습태양열건조(除濕太陽熱乾燥)의 조건(條件), 속도(速度), 결함(缺陷), 수율(收率) 및 열효율(熱效率)과 관행(慣行) 천연(天然), 반온실형(半溫室型) 태양열(太陽熱) 및 열기건조(熱氣乾燥)와의 비교(比較)·분석(分析))

  • Lee, Hyoung-Woo;Jung, Hee-Suk
    • Journal of the Korean Wood Science and Technology
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    • v.17 no.1
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    • pp.22-54
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    • 1989
  • Seasonal semi-greenhouse type solar-drying of 2.5cm-and 5.0cm-thick lumber of Quercus aliena Blume and Quercus variailis Blume was carried out to investigate the possibility of solar-drying of wood and to decide the active solar-drying period in Korea. In the active solar-drying period obtained solar-dehumidification, semi-greenhouse type solar-, air- and kiln-drying of 2.5cm -thick lumber of oaks were carried out to analyze drying-rates. -defects, and -yield in each drying-method and to calculate daily total absorbed solar-radiation the solar dryers. The energy balance equations were set up, considering all the energy requirements, to analyze the heat efficiencies of semi-greenhouse type solar and solar-dehumidification-dryer. In a seasonal drying the drying rate of semi-greenhouse type solar-dryer was highest in summer, and greater in fall, spring, and winter in order. Solar-drying time was 45% in summer to 50% in winter of the air-drying rime, and more serious drying-defects occurred in air-drying than in solar-drying. In the active solar-drying period. April, May, and June, the average drying rate in solar-dehumidification-drying was 1.0%/day and greater than 0.8%/day in semi-greenhouse type solar-drying. In solar-dehumidification-drying the time required to dry lumber to 10% moisture content was less than 60 days, and solar-dehumidification-drying showed the highest drying-yield, 65.01%, than the other drying methods. The daily total absorbed solar radiations were 8.51MJ on the roof collector and 6.22 MJ on the south wall collector. In the energy blance 69.48% of total energy input was lost by heat conduction through walls, roof. and floor 11.68% by heat leakage, 0.33% by heating the internal structures of the solar-dryer and 5.38% by air-venting. Therefore the heat efficiency of semi-greenhouse type solar-dryer 13.13%, was lower than that of solar-dehumidification-dryer, 14.04%. Solar-drying of lumber in Korea showed the possibility to reduce the air-drying-time in every season and the efficiency of solar-dehumidification drying was higher than that of semi-greenhouse type solar-drying.

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A Nutritional Evaluation on Whole Cottonseed Removed Germination Ability by Heat-treatment

  • Hahm, Sahng-Wook;Son, Heyin;Baek, Seong-Gwang;Kwon, Hyeok;Kim, Wook;Oh, Young-Kyoon;Son, Yong-Suk
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.33 no.1
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    • pp.39-44
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    • 2013
  • In Korea, wide spread use of whole cottonseed, which is primarily a GMO plant imported from foreign countries and being fed to animals as raw state, has aroused concern that it may disturb the existing ecology of the country unless dispersion of the seed is under proper control. The objective of this study was to elucidate the changes in various nutritive parameters due to heat treatment and to determine the effective condition for removing germination ability of whole cottonseed (WCS). Of the various temperatures applied (76, 78, 80, 85, $100^{\circ}C$/30 min) $85^{\circ}C$ for 30 min was confirmed to be the lowest temperature treatment which resulted in a complete removal of the germination ability of WCS. Therefore, based on the determined temperature condition ($85^{\circ}C$ 30 min) we tried to examine the changes of various nutritional parameters, including nutrient composition, in vitro digestibilities and ruminal protein degradabilities, comparing raw whole cotton seed (RWCS) and heated whole cotton seed (HWCS). Some changes in amino acid composition were observed with heat treatment of WCS, but these were regarded to originate from the variation in plant quality and seed morphology, which are usually affected by different environmental factors during the vegetation period. As for fatty acid composition, no significant differences were observed to occur during heat treatment. However, WCS heated at $85^{\circ}C$ for 30 min in a circulating oven showed a significant decrease (p<0.05) of in situ rumen degradability in both dry matter (DM) and crude protein (CP), as compared to raw WCS. Overall results obtained in the study indicate that the heating condition used in this study, which was proven to be the most appropriate and economic to remove germination ability of WCS, may also improve the nutritional value of the ruminant with regard to reducing its protein degradability within the rumen.

Effects of chemical additives and heat treatment on the baking properties of wheat flour dough (화학 첨가제와 밀가루의 열처리가 제빵 특성에 미치는 효과)

  • 이지은;고봉경
    • Korean journal of food and cookery science
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    • v.20 no.2
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    • pp.119-125
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    • 2004
  • Effects of various chemical additives and heat treatments were investigated on the wheat flour doughs and breads. Ammonium ferric citrate, Ca-citrate, CaCl$_2$, FeSO$_4$, MgCl$_2$and ZnO were mixed respectively to the flour up to 0.1% of flour dry weight basis. Ammonium ferric citrate and ferric sulfate showed no significant effects on the dough properties and magnesium sulfate, calcium chloride and zinc oxide increased elastic properties and optimum dough mixing time. However, calcium citrate and magnesium chloride showed no significant effects on the dough mixing properties. Most of chemicals were detrimental on the bread volume except MgSO$_4$ and CaCl$_2$. Breads with MgSO$_4$ and CaCl$_2$ retained the equal or slightly higher volume compared to control bread. Crumb and crust colors of breads with addition of chemicals were changed to lighter than that of control bread. L values both of crumb and crust increased with addition of chemicals except Ca-citrate. To inactivate the endogenous enzymes of flour, flour was roasted under electric oven, exposed to UV and microwave. Those heat treatments of flour increased dough stability and produced no dough breakdown after optimum mixing time. However, bread volume of heat-treated flour decreased.

The Analysis on Characteristics according to Sasang Constitution of Patients with Parkinson's Disease in a Korean Medicine Hospital (일개 한방병원에 파킨슨병으로 내원한 환자의 사상의학적 특성에 관한 고찰)

  • Kim, So-Hyoung;Lee, Seul;Lee, Yong-Jae;Bae, Na-Young;Lee, Jeong-yun
    • Journal of Sasang Constitutional Medicine
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    • v.30 no.3
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    • pp.62-73
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    • 2018
  • Objectives The aim of this study was to make an analysis of clinical characteristics and status of Sasang constitutional medicine of patients with Parkinson's Disease who visited a Korean medicine hospital. Methods We studied 129 patients with Parkinson's Disease who visited a Korean medicine hospital from September 1, 2012 to June 30, 2018. We retrospectively collected medical history and characteristics of subjects using data of EMR (electronic medical record). Results The proportion of female was higher than male. The average age was 60s. The patients visited a hospital more than one year after the occurrence of symptoms. And they were mostly under western medicine treatment. Among the 129 patients, 56 persons(43.4%) were Taeeumin, 45 persons(34.9%) Soyangin and 28 persons Soeumin(21.7%). In the distribution of prescription according Sasang Constitutional Medicine symptomatology, there was no significant difference in the proportion of exterior cold disease(48.9%) and interior heat disease(51.1%) in Soyangin. Meanwhile the proportion of heat disease's prescription was higher than cold disease in Taeeumin(73.2%) and Soeumin(84.1%). The majority of disease were Dry-febrile symptom(73.2%) of heat disease in Taeeumin, Yang depletion-syndrome(64.3%) of heat disease in Soeumin, and Gyolhyung-symptom(33.3%) of exterior cold disease and Wasting thirst-syndrome(22.2%) of interior heat disease in Soyangin, Conclusions By Developing of guideline for treatment of Parkinson's Disease through analyzing on clinical characteristics and distribution of Sasang Constitutional Medicine symptomatology could contribute to the improvement of the cure rate and accuracy of constitution pattern.