• Title/Summary/Keyword: Wash out

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유사량 산정에 관한 연구 (밀양강을 중심으로) (A Study on Sediment Load in the Milyang River)

  • 안세영;민벙형
    • 한국농공학회지
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    • 제22권4호
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    • pp.96-107
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    • 1980
  • This study is carried out to estimate the rate of sediment transportation both to measure the amount of suspended and bedload sediment that moves on or near the river bed and passes through the cross section of a river in unit time, with suspended and bed load samplers used for the Milyang river and to determine the most satisfactory and convenient formula of some formulas for sediment discharge by comparing the measured rate with the calculated rate. The results of this study are summarized as follows; 1) The interrelationship (1) between the total discharge and the total sediment discharge (2) between discharge and suspended sediment load and (3) between discharge and bed load in the Milyang river are (1) i) 4$\leq$Q$\leq$100 C.M.S. Qr=0. 00272 Q0.70 (kg/sec) ii) 150$\leq$Q$\leq$800 C.M.S. Qr=0. 4807 Q0.46 (kg/sec) (2) Qs~=0. 07576 Q1.02 (kg/sec) (3) QB=0. 00957 Q0.44 (kg/sec) 2) The rate of suspended sediment load to total sediment discharge is found to be about; 99%. The suspended load is shown to be almost wash load which consists of silt and clay. 3) The relation between the total discharge and the suspended sediment load that are measured at three medium and small rivers in Korea is Qs=0. 13831 Q0.97 (kg/sec) 4) Brown's formula is determined to be the most convenient formula for application and comparison with observed data obtained for the Milyang river.

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Mildronate가 혈청 알코올 농도와 숙취에 미치는 영향 (The Effect of Mildronate on Serum Alcohol Concentration and Hangover Syndrome)

  • 박선민;강박광;정태호
    • 한국식품영양과학회지
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    • 제27권1호
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    • pp.168-174
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    • 1998
  • This study was conducted to determine whether Mildronate, an analogue of carnitine, influences blood alcohol concentration and hang-over syndrome in rabbits and healthy college male students. In the animal study, ten rabbits were randomly divided into two groups. One hundred mg per 1kg body weight of Mildronate was injected twice into five rabbits before injecting 50% ethanol; the rest of rabbits were injected with saline. The human study was performed with two sections. Each section of the study was conducted by a two-phase cross-over design with a four day wash-out period. All volunteers took Mildronate in one phase, and took a placebo in the next phase. The difference between the two sections was related to the time of taking the Mildronate pill and the amount of alcohol consumed. Blood alcohol concentrations were not significantly different between in those taking Mildronate and in those taking the placebo in both the human and the animal study. However, the concentration of serum aspartate aminotransferase(AST, GOT), the indicator of liver cell damage, was lowered in those taking Mildronate, compared to those taking the placebo. Also, headache and heartburn among hang-over syndrome patients were less severe with Mildronate. In conclusion, taking Mildronate prior to drinking alcohol can somewhat reduce liver cell damage and hang-over syndrome without stimulating alcohol metabolism.

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Effects of Lumbar Central Posteroanterior Mobilization on Isometric Knee Extension and Patellar Tendon Reflex Amplitude: A Pilot Study

  • Kim, Bo Kyung;An, Ho Jung;Heo, Seo Yoon;Kim, Byeong Jo;Choi, Wan Suk
    • 국제물리치료학회지
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    • 제9권1호
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    • pp.1435-1441
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    • 2018
  • The main focus of this study was to investigate effects of lumbar central posteroanterior (PA) mobilization on isometric knee extension (IKE) ability and patellar tendon reflex amplitude (PTRA) in healthy university students. University students aged 19-26 (male; 10, female; 10) without any neurological disorders participated voluntarily and excluded the subjects with abnormal reflexes. The participation had an average body mass of $64.25{\pm}13.52kg$, an average height of $1.66{\pm}0.08m$, and an average Body Mass Index (BMI) of $23.07{\pm}3.21$. Every student was randomly assigned to be received squatting exercise and PA mobilization sequentially with 5 days of wash out period. IKE and PTRA were not significantly different between the two groups after the intervention. All the outcome measures were arranged into two data groups; PA mobilization and squatting exercise data group. In the PA mobilization data group, IKE and PTRA significantly increased after the intervention, however, these aspects were decreased in the squatting exercise group. These findings suggest that IKE and PTRA increase immediately after PA mobilization, therefore PA mobilization could be a valuable topic for controlled clinical trials.

대변기 세정시 발생하는 배수소음의 특성변화에 관한 연구 (A Study on Changes in Characteristics of Drainage Noise from Water Closet Washing)

  • 설수환;정철운;김재수
    • 설비공학논문집
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    • 제19권11호
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    • pp.789-796
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    • 2007
  • It has been noted, in case of the apartments in collective form, the drainage noise from cleaning of toilet causes many problems in the basement and adjacent rooms, mainly hampering the pleasant housing environment. The problems are increasingly raised by civil complaints with the public offices. Therefore, if the drainage noise generates when wash out of toilet bowl is grasped how the characteristics change according to the sorts of drainpipe, it is considered that the establishment of an effective sound insulation countermeasure could be possible when a civil petition against the drainage noise of apartment house is submitted hereafter. On such viewpoint, this study measured and analyzed the characteristics of drainage noise per the type of drainage pipe, according to KS A ISO $1996-1{\sim}3$, with the horizontal branch pipe and riser pipes in the drainage noise experiment chamber which has the characteristics of the anechoic room. In the result, the pipe type with excellent noise reduction function. The result of this study is considered to become available as fundamental data, to take actions on reduction of drainage noise of the ceiling piping method.

양록단청 대체안료 개발 연구 (Studies on the substitution pigment of Dan-Chung)

  • 김사덕;김순관;홍정기;강대일;이명희
    • 보존과학연구
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    • 통권20호
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    • pp.121-137
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    • 1999
  • Among pigment used at work of Dan-Chung, Emerald Green is specific illuminating fluorescent light of green. It is very difficult to change other organic or inorganic pigment. All of the internal high class pigment has rare light. But Emerald Green is superior to fresh color and stability out of industrial chemical products. It forms over 50% of quantity and importance of a pattern painting. Emerald Green prohibited to produce because of its toxicpollutants, so required to changing pigment development. It is characterized to excellent color, convenient work, economical, against-sunlight, against-air pollutant and durability. The result of a test is follows; 1. We are investigated into producing internal natural Emerald Green, import external pigment and industrial synthesis method etc. but unable to buy because of its toxic pollutant. 2. We are made six samples by yellowish and green is hpigment mixing. We tested on against sunlight and air pollutant. The best mixing ratio is follows. Titanium Dioxide R760 : 18g- Chalk, White Wash : 10g- Permanent Yellow : 7g- Cyanine Green : 8g- Chrome Yellow : 3g- Resin(Vehicle) : Acryl Emulsion(Styrene + 2-Ethyl HexylAcrylate + Methyl Meth Acrylate) 8%

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가정간호 주돌봄 제공자의 감염관리에 대한 지식 및 수행도 (Knowledge and Performance on Infection Control among Caregivers in Home Care Services)

  • 손순영
    • 가정간호학회지
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    • 제21권1호
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    • pp.69-78
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    • 2014
  • Purpose: This study aimed at providing guidelines and educational manuals on infection control for the home care environment, by assessing the knowledge and performance among the caregivers in home care. Methods: Data were collected from January to March 2013. Participants were 172 caregivers who were registered in the home nursing center of university hospitals. Results: The total score on the level of knowledge of infection control was 13.28 points (${\pm}3.49$) out of 20 points. Secondly, 4.15 points were obtained for individual hygiene management, 4.14 points for hand wash, and 3.86 points for environment management. Lastly, the relationship between the knowledge and performance of infection control showed a significant positive correlation (r=0.37, p<.001). Conclusion: In many instances, the caregivers in the home environment provide nursing care for patients with chronic diseases and make use of various invasive devices. This study recommends the development of a manual or educational guidelines on infection control that can be used by caregivers at the home.

청주시 아파트 일반가정의 겨울철 실내열·공기환경 현장측정조사 (The Indoor Thermal and Air Environment of General Apartment Houses during Winter in Cheongju City)

  • 조준행;최윤정
    • KIEAE Journal
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    • 제13권3호
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    • pp.111-120
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    • 2013
  • The purposes of this study were to investigate the actual state of the indoor thermal and air environment in general apartment houses during winter in Cheongju City, to analyze the related factors with the indoor thermal and air environment, and to make suggestions for the improvement. A series of visiting field investigation was conducted in twenty units between 28th December, 2010, and 11th March, 2011. The field investigations included the measurement of physical indoor environmental conditions, the observation of architectural characteristics and resident's behavior, and the on-site questionnaire survey of residents. The measured values of each units were compared to evaluation standard and were categorized to group by the difference between units. Factors related to the difference of the measured values between the groups were analyzed. The findings are summarized as followed. The indoor temperature of apartment houses during winter in Cheongju City was generally suitable. The relative humidity was slightly dry, while the $CO_2$ concentration was found to be excessively high. The factors related indoor environment were analysed as heating operation, ventilation, gas range use, and hanging out the wash to dry in indoors.

인삼저온숙성비누의 세안효과 연구 (A Study on the Cleansing Effect of Ginseng CP soap)

  • 구진숙
    • 대한본초학회지
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    • 제36권6호
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    • pp.9-16
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    • 2021
  • Objectives : The researcher had investigated the efficacy of ginseng using Microneedle Therapy System (MTS) and confirmed the effect of ginseng Cold Process (CP) soap just before and after washing face. The purpose of this study was to find out what kind of effect appeared through a period of 6 weeks when environmental factors were involved using ginseng CP soap. Methods : The researcher selected 47 subjects, 37 as the experimental group and 10 as the control group. The researcher asked participants to wash their face twice a day in the morning and evening using ginseng CP soap, and the period was set for 6 weeks. The researcher had the people who selected as the control group use a commercially available foam cleanser. They performed a skin test before the start of the test, and the change status was continuously investigated 2 weeks, 4 weeks, and 6 weeks after using the soap. Results : In the case of T-zone oil, there was a significant decrease in the use of foam cleansing and ginseng CP soap, and in the case of pores and pigmentation, a significant decrease was observed only in the use of ginseng CP soap. In skin tone change, there was a significant effect in both the experimental group and the control group, but the significance was greatly increased in the case of ginseng CP soap compared to foam cleansing. Conclusions : Ginseng CP soap is considered to be a more suitable cleanser for skin care compared to foam cleansing.

A Research of Ink and Wash Elements on the 3D Animation Film <Deep Sea>

  • Biying Guo;Xinyi Shan;Jeanhun Chung
    • International Journal of Internet, Broadcasting and Communication
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    • 제15권3호
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    • pp.82-87
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    • 2023
  • <Deep Sea> is an 3D animated film that stands out for its exceptional special effects and distinctive artistic style. The film employs a multitude of dazzling and vibrant ink particles, creating a strong sense of three-dimensionality and weightlessness, while simultaneously portraying a dreamlike and elegant representation of a deep sea ink painting. Furthermore, through the utilization of fragmented stream of consciousness narrative technique, the film establishes a unique artistic effect infused with a Chinese atmosphere. This paper by analyzing the unique particle ink art style and color and stream of consciousness narrative methods in film, this paper discusses the innovative art style generated by traditional ink art style combined with three-dimensional technology, and the integration of traditional ink art ideas and artistic conception in animated films. The objective is to cultivate a new ink art style and prove the importance of traditional cultural expression in animated films, while providing new perspectives for the future application of traditional art in animation.

생체(生體) 및 실험실(實驗室)에서 성숙(成熟)된 돼지 난모세포(卵母細胞)의 체외수정(體外受精)에 관(關)한 연구(硏究) (Study on In Vitro Fertilization of Pig Oocytes Matured in In Vivo and In Vitro)

  • 박창식;이규승;서길웅
    • 농업과학연구
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    • 제18권2호
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    • pp.114-118
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    • 1991
  • 본(本) 연구(硏究)는 생체(生體) 및 실험실(實驗室)에서 성숙(成熟)된 돼지 난모세포(卵母細胞)의 체외수정(體外受精) 및 배양(培養)에 적합(適合)한 배지(培地)를 찾기 위하여 실시(實施)한 바, 그 얻어진 결과(結果)는 다음과 같다. 생체내(生體內)에서 성숙(成熟)된 난모세포(卵母細胞)에 대하여 10% FCS을 함유(含有)한 M199수정배지(受精培地)와 1% BSA를 함유(含有)한 TL Hepes 수정배지(受精培地)를 비교(比較)한 결과(結果), 수정율(受精率)은 TL Hepes 수정배지(受精培地)가 M199 수정배지(受精培地)보다 우수(優秀)하였으나, 다정자침입율(多精子侵入率)이 다소 좋지 않은 편이었다. 체외수정후(體外受精後) TL Hepes 세척(洗滌) 및 배양배지(培養培地)에서 48시간(時間) 배양(培養)한 결과(結果), 배양(培養)된 난자(卵子) 53개중(個中) 39개(個) (73.6%)가 분할(分割)되었으며, 분할(分割)된 수정란(受精卵) 39개중(個中) 31개(個) (79.5%)가 2~8세포기(細胞期)까지 균등(均等)하게 분할(分割)되었다. 미성숙난포란(未成熟卵胞卵)을 Waymouth 성숙배지(成熟培地)에서 배양(培養)했을 때가 TL Hepes성숙배지(成熟培地)에서 배양(培養)했을 때 보다 수정후(受精後) 더 많은 확장(擴張)된 정자두부(精子頭部)를 유도(誘導)할 수 있었으나, 대부분 다정자침입(多精子侵入)이 되었다. 48시간(時間) TL Hepes 세척(洗滌) 및 배양배지(培養培地)에서 배양(培養)한 결과(結果) 4세포기(細胞期)까지 발육(發育)을 시킬 수가 없었다.

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