• Title/Summary/Keyword: Water loss

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The comparative study on the metabolism of water-diseases and its' fundamental rule of treatment - Based on the formation of Dongeubogam - (수액질환(水液疾患)의 병기(病機) 및 치료원칙(治療原則)에 대한 비교고찰 - "동의보감(東醫寶鑑)"의 편제(編制)를 중심으로 -)

  • Back, Sang-Ryong
    • Korean Journal of Oriental Medicine
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    • v.9 no.1
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    • pp.65-79
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    • 2003
  • Many of the diseases that occur in a life being are either closely related to water, or they occur by loss or deterioration of water metabolism. There are six parts of study on this subject in ${\ulcorner}$Dongeubogam${\lrcorner}$. The parts are, the part of Jinaek the part of Dameum the part of Sobyeon the part of Bujong the part of Changman and the part of Seub. In these parts, it mentions loss of perspiration, abnormal urination, edema, abdominal dropsy, formation of abnormal body fluid and intrusion of dampness into the body and etc as the abnormal water metabolism. Loss of perspiration and urination is a process of eliminating the dampness in the body. Perspiration would be the abnormality of yanghwa[陽化]. Urination would be the loss of eumhwa[陰化]. Eum[飮] is the fluid accumulated in the body that failed to go through the process of Cihwa[氣化]. Dam[痰] is formed when the body fluid is heated by the smoking-fire. Meanwhile, the dampness occurs when the water penetrates into the bones, muscles and joints. Edema and abdominal dropsy are both outcomes of accumulated body fluid. Edema is the liquified body fluid congested on the surface or the peripheral ends of the body. Abdominal dropsy is congestion of fluid, that lost the characteristic of blood due to blood deterioration, in the abdominal part.

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Assessment of Ecosystem services under changing climate in the Bagmati Basin of Nepal

  • Bastola, Shiksha;Seong, Yeon-Jeong;Lee, Sanghyup;Jung, Younghun
    • Proceedings of the Korea Water Resources Association Conference
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    • 2019.05a
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    • pp.148-148
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    • 2019
  • The 2006 Millennium Ecosystem Assessment (MA) defines ecosystem services (ES) as "the benefits people obtain from ecosystems". Identifying where ES originates, whom it benefits and how it is changing over a period of time is critical in rapidly developing country like Nepal, where the risk of ES loss is high. In the context of various ecosystem services provided by watershed, this study, particularly deals with water yield, Soil loss and Carbon sequestration computation and evaluation in Bagmati Basin of Nepal. As Bagmati Basin incorporates capital city Kathmandu of nepal, land use change is significant over decades and mapping of ES is crucial for sustainable development of Basin in future. In this regard, the objectives of this study are 1) To compute the total and sub-watershed scale water yield of the basin, 2) Computation of soil loss and sediment retention in the basin, and 3) Computation of carbon sequestration in the basin. Integrated Valuation of Environmental Services and Tradeoffs (InVEST), a popular model for ecosystem service assessment based on Budyko hydrological method is used to compute Ecosystem services. The scenario of ES in two periods of time can be referenced for various approaches of prioritization and incorporation of their value into local and regional decision making for management of basin.

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Relationship between water-holding capacity and intramuscular fat content in Japanese commercial pork loin

  • Watanabe, Genya;Motoyama, Michiyo;Nakajima, Ikuyo;Sasaki, Keisuke
    • Asian-Australasian Journal of Animal Sciences
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    • v.31 no.6
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    • pp.914-918
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    • 2018
  • Objective: The relationship between water-holding capacity (WHC) and intermuscular fat (IMF) was studied in Japanese commercial pork. Methods: Longissimus muscles of pigs (n = 62), obtained from two meat packing plants, were analyzed for IMF content, moisture content, drip loss, cooking loss, and pH. Pairwise relationships among these traits were determined using correlation analyses. Results: IMF content was significantly correlated with moisture content (r = -0.88; p<0.01) and pH (r = 0.32; p<0.05), but not with drip loss (r = -0.23; p = 0.07) or cooking loss (r = -0.10; p = 0.42). In contrast, drip loss was significantly (and negatively) correlated with pH (r = -0.57; p<0.01). Conclusion: IMF content was not significantly correlated with WHC in pork, and so ultimately, we consider pH to be one of the most important factors influencing WHC in pork meat.

The Monitoring on Gradual Change of Seepage Blocking State with the Hydraulic Head Loss Rate Change According to Passage of time in Sea Dike Embankment (수두손실률의 경시변화에 의한 방조제 제체의 점진적인 차수상태 변화 감시)

  • Eam, Sung Hoon
    • Journal of The Korean Society of Agricultural Engineers
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    • v.57 no.1
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    • pp.1-9
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    • 2015
  • In this study it was adopted on sea dike monitoring that the safety monitoring with statistical limits which was adapted usually on safety monitoring by measuring pressures, stresses or deformations. And also the hydraulic head loss rate change according to passage of time was calculated for the purpose of safety monitoring. Safety monitoring by setting the statistical limit on the measured pore water pressure graphs need to be supplemented with an additional method of monitoring because the difference between the rise and fall of the tide was irregular. Safety monitoring by the limits set from values predicted by linear regression and standard errors on the hydraulic head loss graph was not affected by irregularity of tide. But if the condition of an embankment is changed gradually and slowly, it will not be detected on the hydraulic head loss graph. The graph of hydraulic head loss rate for every 24 hours vs date showed clearly that the sea water blocking state was getting better or not even though it was changed gradually and slowly.

Study of the Accelerated Weathering of Sitka spruce under Acidic Conditions (산성(酸性) 조건하(條件下)에서 Sitka spruce의 기상(氣象) 열화(劣化) 가속(加速)에 관(關)한 연구(硏究))

  • Kim, Jae-Jin;Kim, Gyu-Hyeok
    • Journal of the Korean Wood Science and Technology
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    • v.21 no.2
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    • pp.9-14
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    • 1993
  • Weathering of wood in a region of acid rain was performed by the test which thin veneers of Sitka spruce were exposed to outdoor weathering for a total of 18 weeks, with a daily soaking for 30 minutes in acidified water in the pH range 2~5.6. The weathering measured by weight loss and loss in maximum failure load in tension was accelerated by the increase in the acidity of acidified water and in the period of outdoor exposure. It was also shown that the weathering was accelerated even with low acidic conditions in the case of long exposure period, although the weathering was rapidly accelerated with high acidic conditions. When compared the degree of weight loss with that of loss in failure load by weathering, the latter was much greater. From the results of this research, it could be concluded that at pH 4.0 or below of precipitation, the acceleration of weathering of exterior wood would become serious problems, which would be caused deterioration in performance of exterior wood.

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Pressure Loss and Heat Transfer Characteristics of the Glass Beads-Water Flow in a Vertical Tube (수직관내 유리알-물 유동의 압력손실 및 열전달 성능)

  • Kim, N.H.;Kim, J.S.;Lee, Y.P.
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.8 no.4
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    • pp.550-560
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    • 1996
  • Recently, fluidized bed heat exchangers with circulating liquid are widely used in a number of places-chemical, process, food concentration, waste water treatment facilities, etc. In a circulating heat exchanger, solid particles circulate with the liquid, thereby increase the heat transfer and reduce the fouling potential of the heat exchanger. In this study, glass beads were circulated through a vertical tube. The pressure loss and the heat transfer coefficient were measured. At low flow velocities, glass beads enhanced the heat transfer considerably. The enhancement increased as the volume fraction of the glass beads increased. The pressure loss showed a similar trend. From the observed particle behavior near tube wall, a possible explanation of the trend is provided.

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Evaluation of Head Loss within In-Line Mixer for Water Treatment using CFD Technique (CFD모사 기법을 이용한 관내 혼화장치내 수두손실 발생 특성 평가)

  • Hwang, Young-Jin;Lim, Sung-Eun;Kim, Seong-Su;Park, No-Suk;Wang, Chang-Keun
    • Journal of Korean Society of Water and Wastewater
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    • v.23 no.1
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    • pp.107-112
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    • 2009
  • This study was conducted for verification and systematization of estimation method about the headloss using CFD(Computational Fluid Dynamics). Head loss which happens between the inlet and outlet of in-line mixer can be a major factor for the design and construction. Also, this Case studies about the sensitivity related to the velocity in the piping system. As result, program's default calculation function was used to get each side's total pressure and the differential of each total pressure could be defined as head loss from in-line mixer. In the case of adopting pipe surface friction factor and geometry loss, Calculation residual can be much more reduced. It was found that residual of value between CFD method and field test ranged about 3 through 18 precent.

Pressure Loss and Heat Transfer Characteristics of the Glass Bead - Water Flow in a Vertical Tube (수직관내 유리알-물 유동의 압력손실 및 열전달 성능)

  • 김내현;김정식;이윤표
    • Proceedings of the Korea Society for Energy Engineering kosee Conference
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    • 1996.04a
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    • pp.121-131
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    • 1996
  • Recently, circulating liquid fluidized bed heat exchangers are widely used in a number of places - chemical, process, food concentration, waste water treatment facilities, etc. In a circulating heat exchanger, solid particles circulate with the liquid, thereby increase the heat transfer and reduce the fouling potential of the heat exchanger. In this study, glass beads were circulated through a vertical tube. The pressure loss and the heat transfer coefficient were measured. At low flow velocities, glass beads enhanced the heat transfer considerably. The enhancement increased as the volume fraction of the glass beads increased. It also increased as the particle diameter increased. The pressure loss showed a similar trend. From the observed particle behavior near tube wall, a possible explanation of the trend is provided.

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SOIL EROSION MODELING USING RUSLE AND GIS ON THE IMHA WATERSHED

  • Kim, Hyeon-Sik;Julien Pierre Y.
    • Water Engineering Research
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    • v.7 no.1
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    • pp.29-41
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    • 2006
  • The Imha watershed is vulnerable to severe erosion due to the topographical characteristics such as mountainous steep slopes. Sediment inflow from upland area has also deteriorated the water quality and caused negative effects on the aquatic ecosystem of the Imha reservoir. The Imha reservoir was affected by sediment-laden density currents during the typhoon 'Maemi' in 2003. The RUSLE model was combined with GIS techniques to analyze the mean annual erosion losses and the soil losses caused by typhoon 'Maemi'. The model is used to evaluate the spatial distribution of soil loss rates under different land uses. The mean annual soil loss rate and soil losses caused by typhoon 'Maemi' were predicted as 3,450 tons/km2/year and 2,920 ton/km2/'Maemi', respectively. The sediment delivery ratio was determined to be about 25% from the mean annual soil loss rate and the surveyed sediment deposits in the Imha reservoir in 1997. The trap efficiency of the Imha reservoir was calculated using the methods of Julien, Brown, Brune, and Churchill and ranges from 96% to 99%.

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Risk Assessment and Potentiality Analysis of Soil Loss at the Nakdong River Watershed Using the Land Use Map, Revised Universal Soil Loss Equation, and Landslide Risk Map (토지이용도, RUSLE, 그리고 산사태 위험도를 이용한 낙동강유역의 토양 침식에 대한 위험성 및 잠재성 분석)

  • Ji, Un;Hwang, Man-Ha;Yeo, Woon-Kwang;Lim, Kwang-Suop
    • Journal of Korea Water Resources Association
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    • v.45 no.6
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    • pp.617-629
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    • 2012
  • The land use map of the Nakdong River watershed was classified by each land use contents and analyzed to rank the risk of soil loss and erosion. Also, the soil loss and erosion was evaluated in the Nakdong River watershed using Revised Universal Soil Loss Equation (RUSLE) and the subbasin with high risk of soil loss was evaluated with the analysis results of land use contents. Finally, the analyzed results were also compared with the landslide risk map, hence the practical application methods using developed and analyzed results were considered in this study. As a result of land use analysis and RUSLE calculation, it was represented that the Naesung Stream watershed had the high risk for soil loss among the subbasins of the Nakdong River watershed. It was also presented that the high risk area identified by computation of RUSLE was corresponding to the landslide risk area. However, the high risk of soil erosion by land use near the river or wetland was confirmed only through the calculation results of RUSLE.