• Title/Summary/Keyword: Used medium

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The Effect of Medium-Cooked Rice on the Production of Korean Traditional Yakju (한국 전통 약주의 제조시 반숙미의 사용효과)

  • 소명환;유태종
    • The Korean Journal of Food And Nutrition
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    • v.6 no.3
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    • pp.189-198
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    • 1993
  • This study was carried out to investigate the effect of medium-cooked rice on brewing of yakju which was a traditional rice wine in Korea. The influences of cooking temperature of rice on hydrolysis of rice starch and rice protein were tested, and experimental brewings were done according to the traditional brewing method of Bangmunju in which some medium-cooked rice was used. The results obtained were as follows The hydrolysis of starch and protein in medium-cooked rice at 60~$65^{\circ}C$ was easier than that of full-cooked rice at 80~10$0^{\circ}C$. The amounts of saccharides, total amino acids and extracts In Yakju brewed with the combined use of medium-cooked rice and full-cooked rice were twice as much as those brewed with full-cooked rice only. The results of sensory test of Yakju brewed with the combined use of medium-cooked rice and full-cooked rice were better in taste, color and flavor than those brewed with full-cooked rice only. It was thought that our ancestor's traditional brewing method of Yakju in which medium cooked rice and full-cooked rice were used combinedly was excellent Judging from zymological point of views.

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A Study on the Application Medium Expansion Foam Extinguisher by a Fire Performance Analysis used Medium Expention Foam Agent (중발포 소화약제 소화성능 분석을 통한 중발포기 적용에 관한 연구)

  • Lee, Jang Won
    • Journal of the Society of Disaster Information
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    • v.15 no.3
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    • pp.402-408
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    • 2019
  • Purpose: The study want to verify application the medium expantion foam extinguisher of expantion foam rate and fire extinguishing Performance test because the medium expansion system can maintain the discharge distance less affected by air currents, and the foam agent can be used efficiently. Method: For the study, the medium-expansion testing apparatus was manufactured and with synthetic surfactant foam agent of (class B) fire extinguishing model, and Fire Performance was analyzed for foam expansion rate and the fire agent consumption was measured and analyzed. Results: We measured the medium-spray testing apparatus and found that the expansion rate was 26.1 times. The test results of a 20-unit fire extinguishing model show that the extinguishing time is faster than the high and low foam expansion. It has been analyzed that it is possible to apply a hand-operated with a hose reel or medium expansion apparatus. Conclusion: Considering that the foaming agent and the extinguishing performance of the medium foam ratio are excellent, It is necessary to introduce the technical standards of medium foam agent for the introduction of hand-operated equipment, such as hose reel or portable medium foam apparatus.

Effect of Various Mixtures of Used Perlite and Rockwool Slabs on Growth of Euphorbia pulcherrima 'Freedom Red' in a Mat Subirrigation System (폐펄라이트와 폐암면을 재활용한 혼합배지가 포인세티아 'Freedom Red'의 생육에 미치는 영향)

  • 김영회;황승재;정병룡
    • Journal of Bio-Environment Control
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    • v.13 no.2
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    • pp.107-111
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    • 2004
  • This study was conducted to examine the possibility of producing poinsettia with various growing media containing used perlite and rockwool slabs as medium components. Pot plants of Euphorbia pulcherrima 'Freedom Red' were grown in 10 media containing used perlite and particles of rockwool slabs at various ratios including 1:1 and 1:3 (v/v). Medium containing used perlite and peatmoss at 1:3 (v/v) was employed as the control treatment. Height, root length, length of the longest branch, number of roots, leaf area, and width and length of the largest bract of plants grown in media containing used perlite were significantly greater than those in the control. Stem diameter and bract count were not affected by the medium composition. From the results, used perlite and rockwool slabs were proved to be a practically useful materials as medium components for pot production of poinsettia plants.

Case Study on Prevention of Fire/Explosion Accidents caused by Chemical Substances in Small/Medium Sized Construction Sites (중소규모 건설현장 화학물질로 인한 화재·폭발 재해예방 사례연구)

  • Shin, Woonchul;Kwon, Jun Hyuk;Lee, Yong Soo
    • Journal of the Korea Safety Management & Science
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    • v.16 no.3
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    • pp.63-70
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    • 2014
  • There has been an increase in fire/explosion accidents caused by chemical substances used in new small/medium sized construction, reconstruction, or extension sites. There is vast room for improvement, especially in safety training, safety inspection, and selection of countermeasures because training, technicality, and management systems regarding fire/explosion risks in small/medium sized construction sites are very immature in most cases. The purpose of this study is to propose a differentiated technical, educational, and management application plan for preventative management of fire/explosion accidents caused by chemical substances used in small/medium sized construction sites.

Callus Induction and Plant Regeneration form seeds of Zoysia japonica Steud. (들잔디 종자로부터 캘러스 유도 및 식물체 재분화)

  • 임용우;김기용;최기준;임영철;성병렬
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.21 no.2
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    • pp.49-52
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    • 2001
  • conditions for callus induction and plant regeneratin from seeds of lawngrass (Zoysia japonica Steud.) were confirmed in this study. MS (Murashige and Skoog) medium containg 2,4-D 3 or 5mg/l was used for callus induction, and MS medium with different volumes of BA, NAA and kinetin hormones was used to regenerate the plants from induced calli. MS basic medium containing agar with no hormones or kinetin 1.0mg/l and MS basic medium containing gelite and NAA 1.0mg/l were higher for green callus induction. MS medium containing agar and kinetin 1.0mg/l ws highest degree of efficiency for plant regeneration.

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Study on the Propagation System and the Photosynthetic Rate of Chrysantemum zawadskii H. (약용자원식물 구절초의 고소득화를 위한 번식체계 확립 및 재분화 식물체의 광합성 능력증대 I. 구절초의 기내배양 및 재분화 식물체의 RAPD 분석)

  • 김정률
    • Korean Journal of Plant Resources
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    • v.11 no.1
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    • pp.1-8
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    • 1998
  • This study was conducted to establish mass propagation system from the axillary bud culture of chrysanthemum zawadskii H. which was used as material of medicinal plants. Shoot egeneration was better on MS medium with NAA and BA. The optimum concentraions of growth regulator for shoot regeneration differed depending on accessionsof C. Zawadskii. Shoot regeneration in Keungucheolcho was better on MS Medium with NAA 0.01mg/1 and BA 0.1mg/1 while Hyangrobonggucheocho was better with NAA 0.1mg/1and BA 0.3mg/1. Addition of NAA into medium was effective for induction of root from shoots regenerated. Shoot multiplcation was more effective when 10mg/1 spermine was added into medium than when other polyamines were treated ino medium . Randomly and specifically amplified polymorphic DAC banding patterns based on polymerase chain reaction (PCR) analysis were used to assess the genetic variation of plants regenerated from in vitro culture.

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The Evaluation of Medium Voltage Motor's Current and Voltage Harmonics during Loading

  • Alboyaci, Bora;Yorukeren, Nuran
    • Journal of Electrical Engineering and Technology
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    • v.2 no.1
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    • pp.35-41
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    • 2007
  • This paper presents the results of investigating harmonic levels on medium voltage motors at loading conditions in air separation plant. The essential results of the measurements of the medium voltage motor harmonics are summarized in the values for the total harmonic distortion (THD). Motors loading case is used to assess the current and voltage harmonic distortions. Proper system analysis is important when adding a new motor starting and controlling the equipment. With the result of the paper it is possible to suggest the most appropriate starting and control method. Two medium voltage motors of air separation unit measurement results and simulations are summarized. Both current and voltage harmonic distortions are fitted by using a linear and exponential regression model. The prediction of THD values can be used for this kind of process for future planning by utilities.

Optimization of in vitro fertilization technique for oocytes of indigenous zebu cows

  • Rahman, Mohammad Moshiur;Rahman, Md. Masudur;Juyena, Nasrin Sultana;Bhuiyan, Mohammad Musharraf Uddin
    • Journal of Animal Reproduction and Biotechnology
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    • v.35 no.2
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    • pp.142-148
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    • 2020
  • The research work was undertaken to determine an effective fertilization medium, sperm separation method and sperm capacitating agent for optimum in vitro fertilization (IVF) rates of indigenous zebu cow oocytes. In experiment 1, tissue culture medium (TCM 199), Tyrode's albumin lactate pyruvate (TALP) and Brackett and Oliphant (BO) medium were used as basic medium for IVF of oocytes of indigenous zebu cows. In experiment 2, three sperm separation methods namely centrifugation, swim up and percoll gradient methods were used for separation of motile and viable spermatozoa for IVF. In experiment 3, for capacitation of spermatozoa, IVF medium supplemented with the heparin, mixture of penicillamine, hypotaurine and epinephrine (PHE) or the combination of heparin with PHE were used for fertilization. In vitro culture (IVC) of presumptive zygotes was done in modified synthetic oviduct fluid (mSOF) medium using standard procedure 24 h after sperm-oocytes co-culture. The cleavage rate was determined to evaluate the efficacy of fertilization medium, sperm separation method and sperm capacitating agent 24 h after IVC. The cleavage rate was higher in oocytes fertilized in TALP (63.3%) than in TCM 199 (47.5%) (p < 0.05). The cleavage rate was higher in oocytes fertilized by spermatozoa separated by percoll gradient method (62.3%) than by centrifugation (51.6%) (p < 0.05). The cleavage rate of oocytes was higher when insemination was done with spermatozoa capacitated in TALP supplemented with heparin and PHE (61.3%) compared to control (40.9%) (p < 0.05). In conclusions, TALP based medium and percoll gradient sperm separation followed by capacitation with combination of heparin and PHE are suitable for IVF of indigenous zebu cow oocytes in Bangladesh.

Safety Evaluation of Iopamidol Contrast Medium Used for Radiological Examination of a Local Clinic in Korea (방사선 검사에 사용되는 조영제 Iopamidol의 안전성 평가)

  • Park, Chang-Mook;Lee, Bo-Reum;Song, Tea-Bum;Jang, Je-Kwan;Lee, Yu-Jeung;Lee, Myung-Koo;Lim, Sung-Cil
    • YAKHAK HOEJI
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    • v.53 no.6
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    • pp.328-333
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    • 2009
  • Contrast media are substances that are used to enhance the contrast of structures or fluids within the body in medical imaging. Those are commonly used to enhance the visibility of blood vessels and the gastrointestinal tract. The aim of this study is to evaluate patients who got injected iopamidol, developed as one of contrast medium regarding changes in cardiovascular system and especially, adverse drug reactions. This study were performed on randomly selected a total of 51 patients (range of 15~85 years old) who got injected contrast medium, Iopamidol at a P hospital in Gyeonggi province from September 22nd, 2008 to January 24th, 2009. Data were collected by questionnaire though person to person. We analyzed the data by SPSS (Version 12. for windows). Methods of analysis were frequency and cross analysis. In results, 19.6% (n=10) were founded for adverse drug reactions of contrast medium. 25.0% (n=4) of 10 patients who had adverse drug reactions of contrast medium had took abdomen contrast test. 2 patients of those took contrast test for chest. Also, 3.9% (n=2) patients felt vomiting and nausea after injection of contrast medium. In conclusion, 19.6% patients experienced adverse drug reaction of contrast medium. Therefore, when taking radiation test, we should make efforts to minimize adverse drug reactions to achieve suitable and effective treatment.

A METHOD OF MUCOSA CULTURE (구강점막의 배양에 관한 연구)

  • Choi, Byung-Ho;Yoo, Jae-Ha
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.17 no.4
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    • pp.331-336
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    • 1995
  • To use cultured mucosa as a graft of full thickness, our laboratory has been involved in the development of techniques to grow epidermis together with connective tissue. Human oral mucosa was obtained at dental surgery. Under sterile conditions the tissues were cut into explants of 0.1 $cm^2$ which were placed in the center of 24 well tissue culture dishes and incubated in a growth medium. The growth medium used for epithelial was MEM(Minimum Essential Medium) supplemented with 10% fetal calf serum, 0.5% dimethyl sulfoxide, glutamine (0.292 g/l), epidermal growth factor (40 ug/ml), cholera toxin (30 ng/ml), hydrocortisone (2 ug/ml), insulin (40 ug/ml) and transferin (5 ug/ml). The medium for stratification of epithelial cells was MEM supplemented with 10% fetal calf serum, 0.5% dimethyl sulfoxide and glutamine (0.292 g/l). The medium used for fibroblasts was MEM supplemented with 10% fetal calf serum. With the three types of media used alternatively, a mucosa composed of epidermis and connective tissue was obtained after 3 weeks of culture.

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