http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Trichoderma sp. CNU 301가 생산하는 단백질 분해효소에 관한 연구
주우홍,이계숙,윤차원,이연,이인 昌原大學校 基礎科學硏究所 1995 基礎科學硏究所論文集 Vol.7 No.-
The mold which could grow at alkaline pH and thermophilic condition and produced an extracellular proteolytic enzyme was identified as Trichoderma sp.. Trichoderma sp. CNU 301 exhibited the maximum production of proteolytic enzyme at 50℃ in the medium composed of arabinose 1.5%, peptone 1.5% and FeSO₄0.2% (pH 9.0). The partial purified protease by precipitation with ammonium sulfate was most stable at pH 10 and at 60℃. The Trichoderma sp. CNU 301 produced an alkaline and thermostable protease.
Hong, Gye Won,Lee, Young Min,Lee, Hee Gyoun,Jung, Choong Hwan,Shin, Hyung Sik 대한금속재료학회(대한금속학회) 2000 METALS AND MATERIALS International Vol.6 No.6
NiO films have been epitaxially grown by metal-organic chemical vapor deposition (MOCVD) on a bi-axially textured Ni substrate using Ni(thd)₂ as a precursor. The NiO film was deposited at 470℃ for 10 min at a deposition pressure of 10 Torr and oxygen partial pressure of 0.91 Torr. SEM and AFM observations for the deposited NiO film showed a smooth and dense morphology. X-ray rocking curve and φ-scan showed that the NiO film has a bi-axial texture with a (100)$lt;001$gt; orientation. The out-of-plane and the in-plane deviations were measured to be 4.2° and 6∼7° from the FWHM of (200) and (111) planes, respectively.
Hong-Gye Sung,Seong-Jin Kim,Hyo-Won Yeom,Hyo-Won Yeom,Jun-Young Heo 한국항공우주학회 2013 International Journal of Aeronautical and Space Sc Vol.14 No.4
An assessment of two-equation turbulence models, the low Reynolds k-ε and k-ω SST models, with the compressibility corrections proposed by Sarkar and Wilcox, has been performed. The compressibility models are evaluated by investigating transonic or supersonic flows, including the arc-bump, transonic diffuser, supersonic jet impingement, and unsteady supersonic diffuser. A unified implicit finite volume scheme, consisting of mass, momentum, and energy conservation equations, is used, and the results are compared with experimental data. The model accuracy is found to depend strongly on the flow separation behavior. An MPI (Message Passing Interface) parallel computing scheme is implemented.
Direct Deposition of CeO2 Films on Ni Metal Substrate by Chemical Vapor Deposition
Hong, Gye Won,Lee, Young Min,Lee, Hee Gyoun,Jung, Choong Hwan 대한금속재료학회(대한금속학회) 2000 METALS AND MATERIALS International Vol.6 No.3
Cerium dioxide thin films have been grown in-situ directly on cube textured Ni substrate by metal-organic chemical vapor deposition (MOCVD). At a lower deposition temperature of 400℃, an amorphous film was formed. The texture of crystalline CeO₂ film was changed from (200) orientation to (111) orientation when the deposition temperature was increased from 450℃ to 550℃. The growth rate was ∼40 ㎚/min and the rms surface roughness was 50 ㎚ for the CeO₂ film deposited at 450℃ for 10 min. Surface roughness of the film was increased with the development of (111) orientation. Deposited CeO₂ film showed a mixed texture of (100)$lt;001$gt; and (100)$lt;011$gt; orientation. Depending on the deposition condition, the transition from (100)$lt;001$gt; texture to (100)$lt;011$gt; orientation was observed.
Kim, Gye-Won,Hong, Sung-Youl,Shin, Soon-Cheon,Lee, Sung-Hee,Kim, Won-Bae The Pharmaceutical Society of Korea 1987 Archives of Pharmacal Research Vol.10 No.1
Mouse monocolonal antibodies to Hepatitis B surface antien (HBsAg) were prepared and their functional capabilities tested by the method of solid phase enzyme linked immuno sorbent assay (ELISA). HBsAg binding studies inicated that one monoclonal antibody 6E-1-1 bound more HBsAg at a faster rate than the other monoclonal antibodies. Also, for the binding inhibition studies with the selected monoclonal antibody 6E-1-1, one monoclonal antibody 8D-3-6 didn't exhibit binding inhibition for HBsAg. Then, a simultaneous ELISA method was developed for the immunodiagnosis of HBsAg. Different combinations of two monoclonal antibodies as solid phase and horseradish peroxidase (HRPO) labeled phase were studied. The combination of monoclonal antibody of higher affinity constant (6E-1-1) immobilized in a solid phase and monoclonal antibody of lower affinity constant (8D-3-6) as a HRPO laeled phase was more sensitive when two monoclonal antibodies of different affinity constants for HBsAg were prepared.
Effects of secondary tasks on brake time of taxi drivers during unexpected situation
Hong-Won Yeon,Hee-Yong Shin,Hee-Jeong Yoon,Han-Soo Kim,Doo-Hwan Ji,Byung-Chan Min,Gye-Rae Tack,Soon-Cheol Chung 대한인간공학회 2011 대한인간공학회 학술대회논문집 Vol.2011 No.5
Objective: The purpose of this study was to investigate the effects of the secondary tasks such as sending text message (STM) and searching navigation (SN) on brake time of taxi drivers when it happen unexpected situation during driving. Background: There are so many researches that driving performance of ordinary people was affected by cell phone conversations and watching TV. But there are no researches about driving performance of taxi drivers. Method: The participants included 15 taxi drivers; 7 males aged 57.7±4.2 with 28.0±7.5 years of driving experiences and 8 females aged 56.0±2.8 with 22.7±5.2 years of driving experiences. All subjects were instructed to keep a certain distance (30m) from the car ahead and a constant speed (80km/h or 100km/h). The brake time after unexpected situation was measured. Results: The brake time was more faster during driving only than the driving with secondary tasks. Driving performance was more affected by driving with searching navigation(SN) than sending text message(STM).
Precipitation-Filtering Method for Reuse of Uranium Electrokinetic Leachate
Gye-Nam Kim,Dong-Bin Shon,Hye-Min Park,Ki-Hong Kim,Ki-Won Lee,Jeik-kwon Moon 한국방사성폐기물학회 2011 방사성폐기물학회지 Vol.9 No.2
우라늄 오염토양을 동전기제염 시 많은 양의 동전기 침출액이 발생한다. 발생된 우라늄 침출액을 재이 용하기 위한 처리기술이 개발되었다. 동전기제염 시 발생된 우라늄침출액 내의 우라늄농도는 180 ppm이 었고, Mg(II), K(I), Fe(II), Al(III) 농도는 20 ppm∼1,210 ppm이었다. 우라늄침출액의 최적 처리공정은 혼합, 응집, 침전, 농축, 그리고 여과로 구성된다. 침전액의 pH를 11로 맞추기 위해, calcium hydroxide 는 3.0g/100ml 그리고 sodium hydroxide는 2.7g/100ml이 필요했다. 여러 침전실험 결과 NaOH+0.2g alum+0.15g magnetite가 여과를 위한 최적 침전혼합제로 선정되었다. NaOH+0.2g alum+0.15g magnetite 투입 시 침전입자의 평균크기는 600 ㎛이었다. pH=9에서 침전 후 상등액에 총 금속농도가 가 장 낮았기 때문에, 최적 침전을 위하여 먼저 0.2g/100 ml alum와 0.15g/100ml magnetite 투입한 후pH=9일 때까지 sodium hydroxide을 투입하여야 한다
Gye-Hong Kim,Won-Zin Oh,Kune-Woo Lee,Bum-Kyoung Seo 한국방사성폐기물학회 2005 방사성폐기물학회지 Vol.3 No.3
원자력 시설의 해체 시 발생되는 다양한 종류의 폐기물 중에서 배관류를 재활용하거나 처분하기 위해서는 배관 내부의 정확한 방사선학적인 오염 특성의 평가가 선행되어야 한다. 그러나 기존의 측정법인 survey-meter를 이용한 오염도의 직접 측정은 배관 내부와 같은 국소지역의 오염 특성을 정확하게 평가할 수 없으며, 간접법을 이용한 표면오염도 측정의 경우도 시료채취의 어려움뿐만 아니라 시료채취 시 작업자의 오염 가능성이 있기 때문에 적용성에 많은 문제점이 있다. 본 연구에서는 Monte Carlo 모사기법을 이용해 직경이 작은 배관 내부의 베타선 오염도를 측정하기 위하여 플라스틱 섬광체를 모사하였으며, 모사 결과에서 베타선 에너지를 효율적으로 측정할 수 있는 최적의 플라스틱 섬광체 두께 및 형상을 도출할 수 있었다. 이 전사모사 결과를 바탕으로 섬광체의 가공 및 배관 내부에서의 검출기 이송 문제를 고려해 검출기를 제작하였으며 그 특성을 평가하였다. 그 결과 배관 내부의 오염도 측정에 적합한 검출기 성능을 확인하였고, 파이프 내부처럼 국소 지역의 방사선학적 오염 특성 평가를 위한 검출기 개발 가능성을 확인하였다. The characterization of radiological contamination inside pipes generated during the decommission of a nuclear facility is necessary before pipes can be recycled or disposed. But, existing direct measurements of radioactive contamination level using the survey-meter can not estimate the characteristic of contamination on a local area such as the pipe inside. Moreover, the measurement of surface contamination level using the indirect methods has many problems of an application because of the difficulty of collecting sample and contamination possibility of a worker when collecting sample. In this work, plastic scintillator was simulated by using Monte Carlo simulation method for detection of beta radiation emitted from internal surfaces of small diameter pipe. Simulation results predicted the optimum thickness and geometry of plastic scintillator at which energy absorption for beta radiation was maximized. In addition, the problem of scintillator processing and transferring the detector into the pipe inside was considered when fabricating the plastic detector on the basis of simulation results. The characteristic of detector fabricated was also estimated. As a result, it was confirmed that detector capability was suitable for the measurement of contamination level. Also, the development of a detector for estimating the radiological characteristic of contamination on a local area such as the pipe inside was proven to be feasible.
Sung, Hong-Gye,Kim, Seong-Jin,Yeom, Hyo-Won,Heo, Jun-Young The Korean Society for Aeronautical and Space Scie 2013 International Journal of Aeronautical and Space Sc Vol.14 No.4
An assessment of two-equation turbulence models, the low Reynolds k-${\varepsilon}$ and k-${\omega}$ SST models, with the compressibility corrections proposed by Sarkar and Wilcox, has been performed. The compressibility models are evaluated by investigating transonic or supersonic flows, including the arc-bump, transonic diffuser, supersonic jet impingement, and unsteady supersonic diffuser. A unified implicit finite volume scheme, consisting of mass, momentum, and energy conservation equations, is used, and the results are compared with experimental data. The model accuracy is found to depend strongly on the flow separation behavior. An MPI (Message Passing Interface) parallel computing scheme is implemented.