• 제목/요약/키워드: C-RAN

검색결과 990건 처리시간 0.031초

Embryonic and Morphological Development of Larvae and Juvenile of the Buenos Aires Tetra, Hyphessobrycon anisitsi (Pisces Characidae) Characidae Fishes

  • Park, Jae-Min;Han, Kyeong-Ho;Han, Ran
    • 한국발생생물학회지:발생과생식
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    • 제19권1호
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    • pp.25-31
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    • 2015
  • We have launched an investigation for Embryonic Development, Larvae and Juvenile Morphology, of Buenos aires tetra in order to build basic data of Characidae and fish seeding production. We brought 50 couples of Characidae from Bizidduck aquarium in Yeosu-si, Jeollanamdo, from Korea on March of 2015. We put them in the tetragonal glass aquarium ($50{\times}50{\times}30cm$). Breeding water temperature was $27.5{\sim}28.5^{\circ}C$ (mean $28.0{\pm}0.05^{\circ}C$) and being maintained. The shape of fertilized egg was round shape, and it was adhesive demersal egg. The egg size was 0.63~0.91 mm (mean $0.74{\pm}0.07mm$, n=20). After getting fertilized egg, the developmental stage was gastrula stage, and embryo covered almost two-thirds of Yolk. Incubation was happened after 16 hours 13 minutes from gastrula stage, and the tail of juvenile came out first with tearing egg capsule. Immediately after the incubation, prelarvae had 3.78~3.88 mm length (mean $3.84{\pm}0.04mm$, n=5), and it had no mouth and anus yet. 34 days after hatching from the incubation, juvenile had 8.63~13.1 mm (mean $10.9{\pm}1.66mm$), and it had similar silver-colored body shape with its mother.

안나토를 이용한 견직물의 염색성 (The Dyeability of Silk Fabrics with Annatto)

  • 한미란;조원주;이정숙
    • 한국염색가공학회지
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    • 제20권6호
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    • pp.35-41
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    • 2008
  • This study investigated the dyeing properties of silk fabrics with Annatto. The dye stuff was extracted by distilled water at $60^{\circ}C$, 10minutes, 1:100 of bath ratio. Dyeability(K/S) and color fastness of silk fabrics were tested under conditions of various concentrations, time, temperature, repeat-numbers of dyeing, pH, mordants variables and methods of mordanting. The highest absorbance was found in methanol extract of Annatto. The optimum dyeing concentration, time and temperature of silk fabrics with Annatto were 25%(o.w.f.), 60min and $60^{\circ}C$ respectively. The K/S value showed higher in post-mordanting than in pre-mordanting, and especially post-Fe mordant showed highest K/S value. In the case of colorfastness, Cu-mordanted fabrics were good washing fastness. Dry cleaning fastness appeared 4-5 grades and light fastness showed lowest grade.

황련 중 berberine의 추출효율에 관한 연구 (A Study on the Extraction Efficiency of Berberine in Coptidis Rhizoma)

  • 이재성;박호군;우은란;이은주;안덕균;윤원식;신광호
    • 분석과학
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    • 제10권2호
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    • pp.83-90
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    • 1997
  • 본 연구에서는 황련의 지표물질인 berberine의 추출효율을 측정하기 위하여 추출온도, 추출용매, 추출시간 등의 조건 변화에 따른 최적의 추출조건을 찾았다. $60^{\circ}C$에서 2~3시간 환류하였을 때 추출효율이 가장 좋았으며, 추출용매로는 메탄올이나 아세트산을 사용하였을 때 각각 추출효율이 우수하였다. 이온쌍 추출법에서는 사용되는 sodium lauryl sulfate의 첨가 효과는 추출 효율을 오히려 감소시키는 결과를 나타내었다.

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청국장${\cdot}$양파 첨가 피자 제조 : 1. 반응표면분석을 이용한 피자크러스트 제조의 최적화 (1. The development of Pizza with Chungkukjang and Onion : Optimization of Pizza Crust Preparation Using Response Surface Methodology)

  • 성채란;김창순
    • 한국식품조리과학회지
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    • 제23권4호통권100호
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    • pp.481-491
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    • 2007
  • This study was conducted to develop pizza crust with additions of Chungkukjang and onion. The stickiness of the pizza dough containing fresh Chungkukjang (C), heated Chungkukjang (HC), and fresh Chungkukjang with added dough-improver (CI), was measured to evaluate the dough properties. The optimum conditions for pizza crust preparation relating to the processing suitability and sensory quality were established using response surface methodology (RSM). When HC and CI were used in dough making, dough stickiness was reduced to 37% and 51%, respectively. Therefore, the dough-improver(2%) offered the pizza dough better rheological properties when C was used without heat treatment. On the other hand, processing suitability such as the spreadability and overall acceptability, which included the smell and taste of the pizza, were impaired as the amount of CI increased. However, the use of fresh ground onion in the pizza dough compensated for these impairments. The optimum conditions for pizza crust making as determined by RSM were 25.1% onion, 7.1% Chungkukjang, and 52.3 min of fermentation time.

Production of Antihypertensive Angiotensin I-Converting Enzyme Inhibitor-Enriched Edible Yeast Using Gugija (Lycium chinesis Mill)

  • Kim, Ran;Jang, Jeong-Hoon;Park, Won-Jong;Kim, Ha-Kun;Kwak, Hahn-Shik;Lee, Jong-Soo
    • Mycobiology
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    • 제38권3호
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    • pp.206-209
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    • 2010
  • To produce bioactive compound enriched yeast using medicinal Gugiga (Lycium chinensis Mill), several edible Saccharomyces species were cultured in Gugija extracts added yeast extract, peptone and dextrose medium (GE - YEPD medium) at $30^{\circ}C$ for 24 hr, and their growth were determined. Growth of Saccharomyces cerevisiae K-7 and Sacchromyces cerevisiae ACTC 7904 were better than those of the other yeasts. Two yeasts were selected and then determined their some physiological functionalities after cultivated the yeasts in the GE - YEPD medium and compared those grown on YEPD medium. Antihypertensive angiotensin I-converting enzyme (ACE) inhibitory activity of S. cerevisiae K-7 grown on GE - YEPD medium was about 20% higher than that grown on YEPD medium. Superoxide dismutase-like activity of S. cerevisiae ACTC 7904 was also about 12% more high. However, the other physiological functionalities were almost same or lower. Optimal addition concentration of Gugija extract was 10%, and maximally growth and ACE inhibitory activity of S. cerevisiae K-7 were shown when the strain was cultured in 10% Gugija extracts containing YEPD medium at $30^{\circ}C$ for 12 hr.

미지의 선형 순회부호에 대한 복원기법 (Reconstruction of Linear Cyclic Codes)

  • 정하봉;장환석;조원찬;박철순
    • 한국통신학회논문지
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    • 제36권10C호
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    • pp.605-613
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    • 2011
  • 잡음에 있는 채널을 통한 디지털 통신에서는 채널 잡음에 대항하기 위해 오류정정부호(채널부호)를 사용하게 된다. 만일 송신측의 협조 없이 전송정보를 알아내려면 사용된 채널부호를 복원하는 것이 무엇보다 중요하다. 본 논문에서는 잡음에 오염된 수신 비트열로부터 사용된 채널부호의 여려 파라메타를 추출하여 궁극적으로 채널부호를 복원하는 채널부호 복원기법 중 순회부호(cyclic code)의 복원 기법을 제안한다.

Thermally Stabilized Porous Nickel Support of Palladium Based Alloy Membrane for High Temperature Hydrogen Separation

  • Ryi, Shin-Kun;Park, Jong-Soo;Cho, Sung-Ho;Hwang, Kyong-Ran;Kim, Sung-Hyun
    • Corrosion Science and Technology
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    • 제6권3호
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    • pp.133-139
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    • 2007
  • Nickel powder was coated with aluminum nitrate solution to increase the thermal stability of a porous nickel support and control the nickel content in the Pd-Cu-Ni ternary alloyed membrane. Raw nickel powder and alumina coated nickel powder were uniaxialy pressed by home made press with metal cylindrical mold. Though the used nickel powder prepared by pulsed wire evaporation (PWE) method has a good thermal stability, the porous nickel support was too much sintered and the pores of porous nickel support was plugged at high temperature (over $800^{\circ}C$) making it not suitable for the porous support of a palladium based composite membrane. In order to overcome this problem, the nickel powder was coated by alumina and alumina modified porous nickel support resists up to $1000^{\circ}C$ without pore destruction. Furthermore, the compositions of Pd-Cu-Ni ternary alloy membrane prepared by magnetron sputtering and Cu-reflow could be controlled by not only Cu-reflow temperature but also alumina coating amount. SEM analysis and mercury porosimeter analysis evidenced that the alumina coated on the surface of nickel powder interrupted nickel sintering.

A study on the diatomaceous earth filtration of recycling basin supernatant in the water treatment plant

  • Shin, Dae-Yewn;Park, Young-Ho;Moon, Ok-Ran;Park, Hymg-Il;Chung, Kyung-Hoon;Chin-Surk ko
    • 한국환경보건학회:학술대회논문집
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    • 한국환경보건학회 2003년도 Challenges and Achievements in Environmental Health
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    • pp.94-97
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    • 2003
  • This study performed the research about the recycling basin supernatant by pre-coat filtration in the D water treatment plant at Gwangju. Choice the prompt conditions with diatomaceous earth filtration which makes contaminant reduced in the basin supernatant. Element disk of candle used in this experiment are pore size 10$\mu\textrm{m}$(R), 20$\mu\textrm{m}$(B) and 40$\mu\textrm{m}$(Y). Diatomaceous earth are cake pore size 3.5$\mu\textrm{m}$(A), 7$\mu\textrm{m}$(B) and 17$\mu\textrm{m}$(C). The filtrate concentrations were from 0.18 to 0.92$\mu\textrm{g}$/1 of Chlorophyll-a. And then, removal rate percentage were from 78.30 to 95.57(R-A). In addition SS 80%, CODMn32% COD 61%, T-N 10% and T-P 39% on the D water treatment plant. The R(40$\mu\textrm{m}$) C(17$\mu\textrm{m}$) process can be substituted of reusing the recycled water of recycling basin supernatant view of capacity and removal rate of filtrate.

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당뇨입원교육프로그램이 제2형 당뇨병 환자의 지식, 자기효능감, 자가관리 및 당 조절에 미치는 효과 (The Effects of an Admission-Education Program on Knowledge, Self-Efficacy, Self-Care and Glucose Control in Type 2 Diabetes Patients)

  • 이영란;강미애;김파근
    • 한국간호교육학회지
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    • 제14권1호
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    • pp.12-19
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    • 2008
  • Purpose: This study was performed to explore the effects of an admission-education program on knowledge, self-efficacy, self-care and glucose control in type 2 diabetes patients. Method: A single group pre-post test design was used. Twenty-one patients participated in this program during 6 days which consisted of education and practice about exercise, diet, self-care and prevention of complications. Variables at baseline, 3 months, and 6 months were measured. Results: Knowledge level, self-care level and self-efficacy were significantly increased over time after the admission-education program. The $HbA_1C$ level and glucose level in urine were significantly decreased over time after the admission-education program. Conclusion: The admission-education program can increase levels of knowledge, self-care, self-efficacy and decrease glucose levels. Therefore, this admissioneducation program was shown to have a positive effect on the management of diabetes.

C-Terminal Region of Ankyrin-B Interact with Z-Line Portion of Titin

  • Kim, Myong-Shin;Kim, Hyun-Suk;Park, Eun-Ran;Lee, Yeong-Mi;Lee, Min-A;Kim, Ji-Hee;Choi, Jae-Kyong;Ahn, Seung-Ju;Min, Byung-In;Shon, Myeong-Hwan;Choi, Jang-Seok;Kim, Chong-Rak
    • 대한의생명과학회지
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    • 제12권4호
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    • pp.303-310
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    • 2006
  • Ankyrins are a ubiquitously expressed family of intracellular adaptor proteins involved in targeting diverse proteins to specialized membrane domains in both the plasma membrane and the endoplasmic reticulum. We described here that the C-terminal domain of ankyrin-B interact specifically with Z-line portion of titin in yeast two-hybrid analysis, in vitro pull-down assays and localization experiments in COS-7 cells. In this study we provide the first experimental evidence that Z-line portion of titin is necessary for the localization of ankyrin-B and ankyrin-B links between the sarcolemma and the myofibril in costameres.

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