• 제목/요약/키워드: Dam Body

검색결과 247건 처리시간 0.028초

대청호 발전방류수의 인·탁수 배출 역동성과 육수·수문학적 영향 (Dynamics of Phosphorus-Turbid Water Outflow and Limno-Hydrological Effects on Hypolimnetic Effluents Discharging by Hydropower Electric Generation in a Large Dam Reservoir (Daecheong), Korea)

  • 신재기;황순진
    • 생태와환경
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    • 제50권1호
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    • pp.1-15
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    • 2017
  • 대청호는 금강의 중 하류에 대댐(>15 m 높이) 건설로 만들어진 저수지이며, 방류시스템은 수문-여수로, 수력발전 방수로 및 취수탑을 가지고 있다. 본 연구의 목적은 저수지의 하류 댐에서 발생하는 탁수 감소, 녹조현상 및 빈 영양 상태에 대한 육수학적 의문점을 파악하기 위한 것이었고, 수문 기상학적 요인을 중심으로 비교분석 하였다. 현장조사는 2000년 1월부터 12월까지 댐과 발전방류구 지점에서 1주 간격으로 수행하였다. 강수량은 유입량, 방류량 및 수위변동과 밀접한 관련성을 보였다. 강우패턴은 장마와 태풍호우에 의존적이었고, 유량, 탁도의 증가는 강우 빈도보다 강도에 더욱 중요하게 반응하였다. 저수지의 수층별 수온과 DO 변동은 기상 수문학적 영향이 컸고, 수온성층, 밀도류 및 방류에 기초 한 수위변동이 주요한 원인으로 작용하였다. 수문 및 발전방류는 각각 수체의 유동과 탁수 영양염의 배출을 유도하였다. 특히, 저층수에서 저산소 또는 빈산소일 때, 발전방류는 저질층에서 용출되는 인(P)을 댐 하류 하천으로 유출하는 데 크게 기여하였다. 또한, 연중 지속적으로 가동되는 발전방류수는 저수지의 하류(정수대)를 저영양 상태로 만들 수 있는 주된 요인이었다. 그리고 저수지의 하류에서 발생하는 녹조현상은 수문-여수로 방류 때 상류의 수체가 하류로 이송 및 확산된 결과이었다. 발전방류수는 저수지 생태계의 물리, 화학 및 생물학적 요인에 시공간적 영향을 광역적으로 미칠 수 있는 중요성과 역동성을 포함하고 있었다.

Genetic and Phenotypic Parameter Estimates of Body Weight at Different Ages and Yearling Fleece Weight in Markhoz Goats

  • Rashidi, A.;Sheikahmadi, M.;Rostamzadeh, J.;Shrestha, J.N.B.
    • Asian-Australasian Journal of Animal Sciences
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    • 제21권10호
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    • pp.1395-1403
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    • 2008
  • The objective of the present study was to estimate genetic parameters for economic traits in Markhoz goats. Data collected from 1993 to 2006 by the Markhoz goat Performance Testing Station in Sanandaj, Iran, were analyzed. The traits recorded as body weight performance at birth (BW), weaning (WW), six month (6MW), nine month (9MW), yearling (YW) and yearling fleece weight (YFW) were investigated. Least square analyses were used for estimation of environmental effects. Genetic parameters were estimated with single and multi trait analysis using restricted maximum likelihood (REML) procedures, under animal models. By ignoring or including maternal additive genetic effects and maternal permanent environmental effects, five different models were fitted for each trait. The effects of sex, type of birth, age of dam and year of birth on the all body weights were significant (p<0.01), but had no effects on YFW except year of birth. Age of kids had significant influences on WW and 6MW (p<0.01). A log likelihood ratio test was carried out for choosing the most suitable model for each trait. Total heritability estimates for YFW and growth traits varied from 0.16 for YFW and WW to 0.41 for YW. For all traits, maternal heritability was lower than direct heritability, ranging from 0.06 for BW to 0.01 for 6MW and 9MW. The magnitude of $c^2$ was more substantial for BW than the others, and relative importance was reduced from 0.12 for BW to 0.04 for 9MW. The direct additive genetic correlations estimates were positive and varied from 0.21 between BW-YW to 0.96 between WW-6MW. Direct additive genetic correlations between YFW and body weight traits were positive and ranged from 0.14 between BW-YFW to 0.67 between 6MW-YFW. For all traits, the corresponding estimates for phenotypic correlation were positive and lower than genetic correlations. The maternal additive genetic correlations between various traits were varied and ranged from -0.19 between 9MW-YFW to 0.96 between 6MW-9MW. The estimates of the maternal permanent environmental correlations between various traits were positive and ranged from 0.33 between WW-YFW to 0.93 between WW-6MW. Also, the environmental correlations between various traits ranged from 0.01 between BW-YFW and WW-YFW to 0.70 between 9MW-YW. Estimates of genetic parameters for various traits in this study confirm that selection should be applied on WW for genetic improvement in Markhoz goats.

STUDY ON THE FEEDING REGIMES AND GROWTH PATTERN OF PRE-RUMINANT PABNA ZEBU CALVES

  • Rahman, M.M.;Islam, M.R.;Zaman, M.S.
    • Asian-Australasian Journal of Animal Sciences
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    • 제5권4호
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    • pp.659-664
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    • 1992
  • Twelve day old Pabna zebu calves of similar weights were assigned at random to 3 different calf starter-rations namely $T_0$, $T_1$ and $T_2$ to determine the effect of feeding regimes and growth pattern of calves upto 3 months of age. Calves allowed to intake starter 0.5 percent of body weight from 2nd week on to 7th weeks of age, while starter at 1 percent of body weight was allowed later on upto 13th weeks of age. Calves started to intake green grass after 2nd to 3rd weeks and average intake per day was limited to 1 kg upto the end of experiment, while calves started to take rice straw ad libitum after 6th weeks of age. Colostrum feeding was offered ad libitum and in addition calves suckled their dam's milk shortly before and after milking usually in the morning and evening. Growth of calves in different treatment groups was found statistically insignificant. The mean growth rate per head per day ranged from 196.43-375.0 g for $T_0$ group, 185.72-360.72 g for $T_1$ group and 180.1-385.72 g for $T_2$ group respectively between 1st to 7th weeks of age while the growth rate ranged from 309.53-328.57 g for $T_0$, 304.29-342.86 g for $T_1$ and 304.77-333.30 g for $T_2$ groups respectively from 9th weeks on to the end of the experiment.

조잡에 대한 형상의학적 고찰 (Review on Gastroenteric Troubles According to Neurosis or Uncomfortable Feeling with Hyungsang Medicine)

  • 강경화;박광길;이용태
    • 동의생리병리학회지
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    • 제18권4호
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    • pp.965-975
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    • 2004
  • The writer reviewed on Chojop and came to conclusions as follows. Symptoms of Chojop is appeared digestive ailment such as belching, nausea, regurgitation of acid, stomachache etc., if being serious, felt oppressed with palpitating in chest and uneasiness at times. In Dangaesimbub written by Chujinhyung, the causes of Chojop were mainly regarded as phlegmatic fire(痰火) and suggested the way of treatment. The causes of Chojop are movable fire with phlegm, insufficiency of blood caused by thinking to excess, and Shinyanghohan(腎陽虛汗) that is piled cold phlegm by voidance and coldness of Renal Yang, but the main cause is brought to a conclusion as phlegmatic fire. The phlegmatic fire is come from being in discord with the spleen and the stomach, or from in harmony between vigor and blood according to essence and vital energy which are disturbed by combined feelings. That is caused by disharmony between inner and outer conditions according to individuals. The distinctive features in shapes of Chojop are revealed to shapes such as manlike woman, womanlike man, wearing darkish or reddish color between two eyebrows, being almond eyed, strong eyebrows, being sunk the upper part of the nose bridge, lots of facial blots, Dam-body, Ki type, Shin type, Birds group, and Yangmyung type. The doctors can prescribe Whadamchungwhatang to Yangmyung type, Yanghyulsamul-tang for patients with strong eyebrows so flourishing blood and vigor, Hyangsapyungwuisan for patients belong to Birds group, Soshikchungul-tang for Ki type, and Palmiwhan for man belonged to Bangkwang-body with voidance and coldness of Renal Yang chiefly.

풍(風)의 병리적(病理的) 의미규명(意味糾明)과 중풍(中風)의 원인(原因) 및 치료(治療)에 대한 동서의학적(東西醫學的) 비교(比較). (The study of comparison of Eastern-Western Medicine on the pathological concept of the Pung(風) and the cause and therapy of Jung Pung(中風) showed the following results.)

  • 김세길
    • 대한한의학회지
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    • 제16권1호통권29호
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    • pp.96-117
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    • 1995
  • 1. The Pung(風) is the necessary power for growth and maintenance of life. 2. The characteristics of the Pung(風) is the Yang evil, the features for opening and excretion, mobility and rapid change. That is the major cause of all diseases, and its mobility is the main character. 3. Jung Pung(中風) is the same concept of apoplexy in Western medicine. 4. Jung Pung(中風) is classified on the basis of pathology, anatomy, and histology in Western Medicine, but In Oriental Medicine that is classified on the basis of symptom and severity of disease. 5. In Western Medicine, Jung Pung(中風) was regarded as the local cause of disease, but in Oriental Medicine regarded as the physiological changes caused by the weakness of the whole body. 6. In the emergency care, the method of GaeKeum is compared to Levin tubing, the method of to the use of urokinase for the promotion of cerebrovascular circulatio, and the method of To(吐法) to suction for the elimination of Dam(痰), the method of Hun(熏法) to the use of solution for the improvement of circulation. 7. With the comparison of the cause and diagnosis, the hemorrhagic disease and infarction were regarded as the major agents in Western Medicine and the symptom appeared in the patient was the standard of diagnosis and therapy in Oriental Medicine. 8. In the Western therapy of cerebral hemorrhage, the method of coagulation and hemostasis was used for the elimination of hematoma and cerebral edema, but in Oriental Medicine, the method of YanghaelGiHael(凉血止血) was used for descending the PungHwa(風火) and hemostasis. 9. In the period of recovering injury, the physical therapy was underlined for the recovering of partial function in Western Medicine, the method of accupuncture and drug therapy was adapted for the normal function of the whole body.

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Proalarioides kobayashii Park, 1940의 표피 미세구조 (A scanning electron microscope study on the tegument of Proalayioides kobauushii Park, 1940 (Trematoda))

  • 주종필;임일성;황인담
    • Parasites, Hosts and Diseases
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    • 제29권2호
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    • pp.173-180
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    • 1991
  • 육지산 뱀인 무자치 (Elaphe rufodersata)의 장내에서 Proalarioides kobaynshii((Trematoga)를 채집하여 표피 미세구조를 관찰하고 다음과 같은 결과를 얻었다. 충체 전반부는 컵 모양으로 위흡반, 구홉반, tribocytic organ 등을 갖고 있었으며, 후반부는 손가락 모양으로 별 구조물이 없이 밋밋하였다. 전반부 표피에서는 가시가 관찰되었는데 컵의 중앙부로 갈수록 끝이 3∼4분지로 갈라진 가시들이 관찰되었고 그 사이 사이에는 openingpapillae와 type II papillae및 dome-shape papillae가 관찰되었다. Tribocytic organ의 중앙 4/5는 섬유성 구조를 하고 있었고 외연쪽으로는 가시들이 둘러싸고 있었으며 가시들도 밖으로 갈수록 끝이 2∼3분지로 갈라져 존재하였다 구흡반은 전반부 앞쪽 중앙에 위치하고 양측에 위흡반을 갖고 있었으며 구흡반 주위에 type II papillae가 관찰되었다. 컵 모양의 외연쪽에서는 type III papillae가 관찰되었다. 이상과 같이 P. kobayashil치 표피 미세구조를 관찰한 바 다른 strigeoid 흡충류와 다른 몇가지 특징을 관찰할 수 있었다.

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치과치료시 발생한 이물질 삼킴에 대한 치험례 (FOREIGN BODY INGESTION DURING DENTAL TREATMENT IN PEDIATRIC PATIENT)

  • 김선하;최성철;박재홍;김광철
    • 대한장애인치과학회지
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    • 제7권1호
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    • pp.29-32
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    • 2011
  • 상부위장관 이물질의 섭취는 대부분 위장관에서 자연적으로 배출되지만, 20% 정도에서는 내시경 또는 수술적 제거의 적응증이 된다. 특히 치과치료중 소아가 삼킬 수 있는 여러 가지 기구 중 bur 등은 예리하고 길이가 길기 때문에 생리적 협착 부위에서 걸려 자연배출이 힘들 수 있다. 또한시간이 지날수록 식도벽에 고착되고 궤양 등의 합병증을 일으켜 내시경으로 제거하기가 어렵기 때문에 소아가 삼켰을 경우 신속한 대처가 필요하겠다.

금관 수복치료 후 발생한 좌측 기관지 내로의 금관 흡인에 관한 증례보고 (The Aspiration of Foreign Body in the Left Tracheobronchial Tree during Gold Crown Restoration -A Case Report-)

  • 신터전;서광석;김현정
    • 대한치과마취과학회지
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    • 제10권1호
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    • pp.54-57
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    • 2010
  • Foreign body aspiration (FBA) into the tracheobronchial tree could be life threatening requiringprompt intervention. Any objects placed in the oral cavity put patients at a risk of aspirating or swallowing the objects slipped or broken by physical injuries. Here, we report a case of 30 yr old patient with FBA during gold crown replacement was successfully treated with the use of the flexible bronchoscope. Case: A 30 yr old woman was admitted to Seoul National Dental Hospitalfor an amalgam restoration. She was scheduled to gold crown restoration for replacement of the damaged amalgam at #37 site. After performing crown lengthening procedure, the aspiration of gold crown occurred during the cementation of the crown. After aspiration, the patients complained of the subjective distress of respiration. Chest radiograph revealed that gold crown was enlodged to the left bronchus. Flexible fiberoptics was inserted to the bronchus to remove the aspirated crown. Fiberoptic assisted removal of the aspiratedcrown was successfully performed. After removal, there was no radiopaque material in the left bronchus on follow-up chest radiograph. Discussion: When aspiration of dental materials occurs, flexible fiberoptic can be used in the treatment of FBA. It is also very useful to take preventive management such as rubber dam, application of dental floss in dental procedure where there is high likelihood of FBA.

Genetic Relationship between Ultrasonic and Carcass Measurements for Meat Qualities in Korean Steers

  • Lee, D.H.;Kim, H.C.
    • Asian-Australasian Journal of Animal Sciences
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    • 제17권1호
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    • pp.7-12
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    • 2004
  • Real time ultrasonic measurements for 13th rib fat thickness (LBF), longissimus muscle area (LEMA) and marbling score (LMS) of live animal at pre-harvest and subsequent carcass measurements for fat thickness (BF), longissimus muscle area (EMA), marbling score (MS) as well as body weight of live animal, carcass weight (CW), dressing percentage (DP), and total merit index (TMI) on 755 Korean beef steers were analyzed to estimate genetic parameters. Data were analyzed using multivariate animal models with an EM-REML algorithm. Models included fixed effects for year-season of birth, location of birth, test station, age of dam, linear and quadratic covariates for age or body weight at slaughter and random animal and residual effects. The heritability estimates for LEMA, LBF and LMS on RTU scans were 0.17, 0.41 and 0.55 in the age-adjusted model (Model 1) and 0.20, 0.52 and 0.55 in the weight-adjusted model (Model 2), respectively. The Heritability estimates for subsequent traits on carcass measures were 0.20, 0.38 and 0.54 in Model 1 and 0.23, 0.46 and 0.55 in Model 2, respectively. Genetic correlation estimate between LEMA and EMA was 0.81 and 0.79 in Model 1 and Model 2, respectively. Genetic correlation estimate between LBF and BF were high as 0.97 in Model 1 and 0.98 in Model 2. Real time ultrasonic marbling score were highly genetically correlated to carcass MS of 0.89 in Model 1 and 0.92 in Model 2. These results indicate that RTU scans would be alterative to carcass measurement for genetic evaluation of meat quality in a designed progeny-testing program in Korean beef cattle.

방류 흐름제어를 위한 투과성 잠제의 적용성 분석 (Applicability of Permeable Submerged Breakwater for Discharged Flow Control)

  • 허동수;이우동
    • 한국수자원학회논문집
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    • 제49권1호
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    • pp.51-60
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    • 2016
  • 본 연구에서는 투과성 잠제의 형상 및 평면배치에 따른 방류 흐름제어 기능을 분석하기 위하여 유체 투과성 구조물 해저지반의 비선형 상호간섭을 직접해석 할 수 있는 PBM (Porous Body Model) 기반의 3차원 수치파동수조(NWT; numerical water tank) LES-WASS-3D를 이용하였다. 먼저 이용하는 LES-WASS-3D의 타당성 및 유효성을 확보하기 위하여 투과성 구조물를 통과하는 댐 붕괴파의 전파특성에 관한 수리모형실험과 계산결과를 비교 분석하였다. 투과성 잠제를 고려한 방류시뮬레이션으로부터 투과성 잠제의 적절한 형상 및 평면배치는 방류유속을 저감하고 흐름을 유도하는 데 상당히 효과적인 것을 알 수 있었다. 또한 투과성 잠제의 형상 및 평면배치에 따른 흐름제어에 대한 적용성은 평균류분포, 연직유속분포를 통하여 확인할 수 있었다.