민들레 추출액 농도에 따른 민들레 코팅쌀밥의 품질에 관한 연구

유경미,이연경,김세희,황인경,이부용,김성수,홍희도,김영찬 한국조리과학회 2005 한국식품조리과학회지 Vol.21 No.1

Washed rice was coated by spraying aqueous dandelion (Taraxacum officinale) extracts at 20, 30, 40 'Brix and dried at room temperature. The coating procedure was conducted 5 mL/min for 10min. Property changes in the dandelion coated rice and un-coated cooked rice were observed during 2 days of storage. Increasing the coating concentration was associated with lower color values (L, a value) and moisture contents. Sensory and texture properties generally decreased in the cooked rice coated with dandelion more than the control (non-coated rice). But, D-20(20 °Brix of the dandelion concentration) resulted in better textural properties and s ensnry scores for hardness and overall acceptability in cooked rice. Compared to the control, the washed rice roated with 20 °Brix for 0 and 2 days showed better quality in sensory activities, a lower gel consistency and better textural activities. It was concluded that the optimum coating ration of rice and added dandelion extract for cooking were 20 °Brix and 5% respectively, in proportion to the total weight of raw rice.

민들레 잎과 뿌리 분말을 첨가한 설기떡의 품질 특성

유경미,김세희,장정화,황인경,김경임,김성수,김영찬 한국조리과학회 2005 한국식품조리과학회지 Vol.21 No.1

In order to develop a dandelion (Taraxacum officinale) with natural food applications, the effects of dandelion leaves and roots powder content on the physical, textural and sensory properties of sulggidduk were examined. Dandelion powders of leaves and roots at 0, 1, 2 and 3% were added to the dandelion sulgidduk. In the dandelion roots powder in sulgidduk, the color intensity of L values and the values and moisture content decreased however, the sensory color intensity, dandelion flavor and overall acceptability increased with increasing the dandelion powder content. The sensory overall acceptability indicated the dandelion roots powder content at 3% had the highest overall and flavor scores. As the dandelion leaves content was increased, the moisture contents, lightness, adhesiveness and cohesiveness of sulggidduk decreased, while the sensory color intensity, sensory hardness, hardness of texture properties and dandelion flavor increased. The addition at 1% of the dandelion leaves powder content with the dandelion sulggidduk and the addition at 3% of the dandelion roots powder content with the dandelion sulggidduk showed the highest overall acceptability.

水稻의 適正 用水量 算定에 關한 硏究 : 葉水面 蒸發量을 中心으로 For Amount of Evapotranspiration

黃龍鎭,宋錫銀,鄭鳳守,朴魯奭,李裕根,李永日,黃光性 진주산업대학교 1976 論文集 Vol.14 No.-

1. 試驗기간의 氣象現況은 Table 1과 같다. 2. 벼의 엽면증발량은 活着後 점차 增加하여 第8기에 Peak로 되며 이때의 1日 엽면 증발량은 5.16mm/day로 되었다가 점차 減少現象을 보인다. 3. 엽면증발량은 第8期에 全 葉面증발량의 17.5%에 達한다. 4 벼의 증산비는 282이였다. 5. 株間수면증발량은 Table 3과 같으며 葉面증발량과는 負(一)의 相關關係가 있음을 보였다. 6. 증발계증발량과 엽수면증발량과의 比는 1.43이였다. 7. 증발계증발량과 葉面증발량과의 비는 0.89이였다. 8. Blaney- Criddle method에 依한 k値는 Table 5와 같다. 9. 증산强度는 총계 1021로, 증발산强度는 총계 1141.8로 나타났다. The resuts of the study on consumption use of irrigated water in pabdy field during the growing stage of gaddy rice are summarized as follow. 1. Amount of transpiration of paddy rice increases gradually after trasplantation and reaches peak on 8th growing period and amount of traspiration reached on 5.16mm/day, then it decreases gradual1y after that. 2. Trnspirstion reached l7. 5% of amount of transpiration at 8th growing period. 3. Transdiration ratio of paddy rice approximate1y 262. 4. As we know from Fig. 2 correlation between the amouut of everporation from water surface in paddy field and amount of trans piration shows high negative. 5. Ratio of between evaportion and evapotranspiration is 1.43. 6. Ratio of between evaportion and transpiration is 0.89. 7. The k value of Blaney-Cliddle methed shows Tab1e 6. 8. Transpion and evaoptranspiration intennsities is each other 1021 and 1141.8.本 試驗은 엽수면증발량 株間수면증발량을 實測하였으며 이 試驗에 여러 가지 未備한 点이 있는 것으로 思料되나 以上의 試驗結果를 要約하면 다음과 같다.

배기가스 재순환에 의한 실린더 및 피스톤 마모에 미치는 영향에 관한 연구

황광성,김태규,정태상,김유영,하정호 진주산업대학교 산업과학기술연구소 2003 산업과학기술연구소보 Vol.- No.10

The effects of recirculated exhaust gas on the wear of cylinder liner, piston and piston rings have been investigated by the experiment with a two-cylinder, four cycle, indirect injection disel engine operating at 75% load and 1600 rpm spped. For the purpose of comparison between the wear rates of two cylinders with and without EGR, the recirculated exhaust gas is sucked into one of two cylinders after the soot among exhaust emissions is removed by an intentionally designed cylinder-type scrubber equipped with 6 water injectors(A water injector has 144 nozzles of 1.0 mm diameter), while only the fresh air into another cylinder. These experiments are carried out on the fuel injection at a fixed 15.3˚BTDC timing. It is found that firstly the mean wear amount of cylinder liner with EGR is more increased in the measurement positions of the second half than of the first and the mean wear amoount without EGR is almost uniform regardless of measurement positions, secondly the wear rates of the first and second piston ring(compression ring) thickness with EGR are more than twice, but the wear rate of oil ring thickness without EGR is more increased than that with EGR, and finally the wear rate of piston skirt with EGR is a little bit increased, but the piston head diameter is rather increased owing to soot adhesion and corrosion wear, and especially larger with EGR.

혈당 측정에 있어서 반사광 비색법과 전기 화학 전극법의 비교

황유성,이도훈,우재근 충북대학교 의과대학 충북대학교 의학연구소 1995 忠北醫大學術誌 Vol.5 No.1

당뇨병환자에서 적절한 혈당을 유지하기 위한 목적으로 시험지봉 검사 방법이 1970년대 초 처음으로 개발된 이후 많은 자가 혈당기들이 고안되어 사용되고 있으며, 대부분이 반사광 비색법을 이용한 자가 혈당 측정기로 현재 국내에는 Glucometer(Ames), Glucoscan(Eiken), One TouchTRM Ⅱ(Lifescan), Accu-check Ⅲ(BM)등이 사용되고 있다. 저자들은 본원에서 이미 사용하고 있었던 반사광 비색법을 이용한 시험지봉으로 LIFESCAN사의 One TouchTM Ⅱ와 전기 화학 전극법을 이용한 Medisense사의 CompanionTM 2에 대하여 정밀도, 직선성, 비교방법과의 상관관계 및 혈액량과 헤마토크리트에 의한 영향, 관찰자간의 변이, 항응고제가 미치는 영향 등 측정에 영향을 미치는 여러 인자들에 대하여 평가를 시행하였다. 검사일내 정밀성(within day precision)은 두 기기 모두 5% 정도이었고, 검사일간 정밀성(day-to-day precision)은 CompanionTM 2가 3.14%∼6.53%, One touchTM Ⅱ가 4.69%∼8.13%의 변이계수를 보였다. 두 기기 모두 직선성이나 비교방법과의 상관관계가 우수하였다. CompanionTM 2와 One touchTM Ⅱ사이의 상관관계는 y=1.040x+21.679, r=0.9716이었다. 두 기기 모두 혈액량, 관찰자, 항응고제에 의해서는 영향을 받지 않았으며, 헤마토크리트에 의해서는 헤마토크리트가 낮을 때는 높은 혈당치를, 헤마토크리트가 높을 때는 낮은 혈당치를 나타냈다. The purpose of this study is to assess two monitors of blood glucose : One touch?? Ⅱ(Lifescan Inc.), which is using reagent strips by reflectance photometry and CompanionTM 2(Medisense Inc.), which is using electrochemical electrode method. Glucose was determined on capillary and venous blood samples from 70 adult diabetics by three different methodologies : One touchTM Ⅱ, CompanionTM 2 portable glucose meters (capillary) and the Hitachi 7150 analyzer(venous), which is using hexokinase method. In within-run precision studies for One touchTM Ⅱ and CompanionTM 2, coefficient variations (CVs, %) were 1.92∼5.09, 2.95∼4.79 at three different levels, respectively. In between-day percision studies for One touchTM Ⅱ and CompanionTM 2, CVs(%) were 4.69∼8.13, 3.14∼6.53 at three different levels, respectively. The linearity studies revealed r=0.9996 in One touch?? Ⅱ, r=0.9977 in CompanionTM 2, which were satisfactory. Correlation equation and coefficient for results by One touchTM Ⅱ and CompanionTM 2 vs those by hexokinase method(x) were : y=0.8087x-8.9566(r=0.9824) for One touchTM Ⅱ, y=0.8885x+4.4992(r=0.9807) for CompanionTM 2, which were satisfactory. The glucose levels were falsely high at low hematocrit concentration and falsely low at high hematocrit concentration in both monitors. The volume of blood applied to the test strips is not critical. We concluded that "One touchTM Ⅱ" using reagent strip by reflectance photometry and "Companion?? 2" using electrochemical electrode method is suitable for self monitoring of blood glucose.

胎盤組織 Guanine Aminohydrolase에 關한 硏究

유지헌,林圭,郭相太,黃炳斗 충남대학교 의과대학 지역사회의학연구소 1987 충남의대잡지 Vol.14 No.2

Guanine aminohydrolase(EC 3.5.4.3, GAH) has been purified from human term placenta approximately 1,280-fold with a 10% yield by combination of ultracentrifuge, ammonium sulfate precipitate, Sephacryl S-300 chromatography, calcium phosphate gel adsorption, DEAEcellulose chromatography and hydroxyapatite chromatography, and then its properties were investigated. 1. The purified enzyme appeared single protein band by SDS/polyacrylamide gel electrophoresis. 2. The enzyme showed a pH optimum around 5.6-8.6. It was heat labile, inactivated by heat-treatment for 10 minutes at 70℃, and irreversively denatured by freezing and was stable at 4℃ for at least 1 month. 3. Copper ion (Cu^2+) was a potent inhibitor, the activity being inhibited upto 75% at 2 mM concentraion and the inhibition was completely recovered its activity by additon of 4 mM EDTA, and zinc ion (Zn^2+ also inhibited upto 40% at 2 mM concentration. The other ions did not almost inhibit. 4. The apparent Km value for guanine was 4 X 10^-5M, and the enzyme activity was completely inhibited by 0. 5 mM of p-hydroxymercuribenzoic acid, but all of the activity was recovered in adding 10 mM mercaptoethanol. 5. The molecular weight of the enzyme showed 170,000 by Sephacryl S-300 chromatography, and 55,000 by SDS-polyacrylamide gel electrophoresis. And the properties such as above results of guanine aminohydrolase of human term placenta are compared with those of guanine aminohydrolase of other tissues.

지대치 재료의 환경변화에 따른 물리적 성질에 관한 연구

황유숙,최경규,박상진 大韓齒科保存學會 2005 Restorative Dentistry & Endodontics Vol.30 No.2

The purpose of this study was to measure the flexural strength and hardness of four core materials in 4 different medias and to evaluate the relationship between the physical properties. For the flexural strength, the specimens were prepared from each of the following materials: Bisfil Core, Core Max, Fuji IX GP, Miracle Mix and randomly divided into four groups and stored at 37 degree C in the following medias: distilled water for 24 hours (DW/1), distilled water for 30 days (DW/30). 2%NaF for 30 days (NF/30), 0.02N lactic acid for 30 days (LA/30). After storage, the specimens were subjected to flexural strength testing and calculated to flexural modulus. For hardness testing, specimens were prepared from four materials and storaged in the uniform way. After storage, the specimens were subjected to Vicker's hardness testing. 1. The flexural strength of Core Max were the highest, and the flexural strength of Miracle Mix were the lowest. 2. The hardness of Bisfil Core were the highest. 3. The hardness of Core Max were the highest. 4. The hardness of Miracle Mix were the lowest. 5. 2%NaF and 0.02N lactic acid negatively affected the flexural strength and hardness of four core materials. 비금속 지대치 재료의 구강 내 환경변화에 따른 물리적 성질을 구명하기 위하여 4종의 지대치 재료를 다양한 환경에 보관한 후 굴곡강도 및 표면경도의 변화를 관찰하여 조건에 따른 영향을 구명하고자 이 연구를 시행하였다. Bisfil Core, Core Max, Fuji IX GP, Miracle Mix를 사용하여 굴곡강도 측정을 위한 시편을 제작한 후 최대하중을 측정하여 굴곡강도와 굴곡탄성계수를 계산하였다. 표면경도 측정을 위하여 아크릴릭 레진블럭에 상기 4종의 재료를 충전하여 중합시킨 후 순차 연마하여 경도측정을 위한 시편을 제작하고 Vickers hardness를 계산하였다. 1. 굴곡강도는 Core Max에서 가장 높고 Miracle Mix에서 가장 낮았다. 2. 37℃ 증류수에 24시간 보관한 군에서 Bisfil Core가 경도가 가장 높았다. 3. 30일 저장군에서는 Core Max가 경도가 가장 높았다. 4. 모든 군에서 Miracle Mix가 가장 낮은 경도를 나타냈다. 5. 2% NaF용액과 0.02N lactic acid용액은 증류수보다 지대치 재료의 굴곡강도와 표면경도를 저하시켰다.

각종 조리방법이 간흡충 피낭유충의 저항성에 미치는 연구

조유정,주종필,임한종,황선경,이성희 한국건강관리협회 2000 건협 Report Vol.3 No.-

창원지역에서의 대기오염물질 배출량 산정

김유근,박상철,문윤섭,오인보,황미경 부산대학교 환경문제연구소 2002 環境硏究報 Vol.20 No.-

Emissions of air pollutants (TSP, SO2, NO2, CO, and HC) was estimated in Changwon city that has the industrial complex and basin terrain. We found that the emissions of TSP, SO2, NO2, CO, and HC were 897 tons, 3,287 tons, 5,706 tons, 10,057 tons, and 1,470 tons for a year, respectively and the main source of air pollutants were vehicle. The ratios of vehicle emissions to total emissions ware TSP 63.8%, SO2 26.1%, NO2 65.5%, CO 91.0%, HC 94.4%. The ratios of industry emissions to total emissions were TSP 30.8%, SO2 60.2%, NO2 25.2%, CO 6.4%, HC 3.7%. The ratio of life emissions to total emissions are TSP 5.4%, SO2 13.7%, NO2 9.3%, CO 2.6%, HC 1.9%. The concentration distributions of air pollutants simulated by ISCST3 model were similar to its emission distributions, and relatively high concentrations of air pollutants occurred in the Palyong-dong (industrial area) and Banlim and Chungang (residual area).

PID제어를 이용한 Chamber의 냉방제어 시뮬레이션

정태상,황광성,김태규,김유영,정기환 진주산업대학교 산업과학기술연구소 2003 산업과학기술연구소보 Vol.- No.10

A cooling system of chamber is universally appliable with simple ON-OFF control algorithm. It has such disadvantages as having a delay for response time. To solve the above problem, we propose establishing the mathematical model of cooling system for chamber, simulating it with PID control algorithm and evaluating performance tests for control algorithm respectively.