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이병국,김용배,최승호 한국균학회 1974 韓國菌學會誌 Vol.2 No.1
1. Penicillium sp. C 13-13 strain was obtained with the treatment of mutagenic agents(N.T.G.) and by single spore isolation method from the Penicillium sp. C8-14 strain, which was reported in the previous paper. 2. The above strain had a few spores and to obtain seed culture, it was cultured at 30℃ and initial pH 4.5∼5.0, with air rate 6ℓ/min., and agitation 600 rpm for 48 hours in 10% wheat bran medium in 20ℓ- Jar fermenter. When the broth that had above 70㎖ of mycelium was inoculated into wheat bran medium and incubated at 29∼33℃ for 72 hrs, the cellulase activity of the koji was higher. 3. Adding calcium chloride and magnesium sulfate to the wheat bran medium to 1.5% and 0.015% respectively, the cellulase activity of the koji was higher than that of the control.
이병국,김용배,최승호 한국균학회 1973 韓國菌學會誌 Vol.1 No.1
The soil of Kwangneung area(Kyeunggi-Do) was inoculated directly into wheatbran-media and after 3∼4 days of incubation, a Penicillium species whose cellulase activity was 1011u/g was isolated. With the treatment of mutagenic agents an improved strain(cellulase activity: 1303u/g) was obtained. This strain was screened again by mono-spore isolation method. Finally a strain C8-14 (cellulase activity: 2351u/g) which had lesser spores than the wild strain was obtained.
중대형급 냉수, 스팀 동시 공급형 흡수식 히트펌프 시제품 성능시험 결과 분석
하현호(Hyun Ho Ha),김한길(Han Gil Kim),풍익(Feng Yi),조대한(Dea Han Cho),유인평(In Pyung Yoo),권오경(Oh Kyung Kwon),배경진(Kyung Jin Bae),김남용(Nam Yong Kim),홍성주(Sung Joo Hong),박찬우(Chan Woo Park),김인관(In Gwan Kim) 대한설비공학회 2021 대한설비공학회 학술발표대회논문집 Vol.2021 No.6
The combination of Absorption Heat Pump Type II and Single Effect Absorption Chiller is the Absorption Heat Transformer with simultaneous supply of chilled water and steam. This type of absorption heat transformer can supply steam of 120℃ and chilled water of 8℃ simultaneously by using hot water of 90℃ as heat source. A heat source of the cycle of this absorption heat transformer passes through generator and high temperature generator. The consist formation of the cycle are evaporator to produce chilled water, high temperature absorber to produce high temperature water, low temperature absorber and condenser for heat dissipation; in addition, the control system is structured exclusively for steam and chilled water. A prototype is designed based on ability of supplying 100 usRT of cooling capacity and 200kg/h of steam, and manufactured to execute performance evaluation accordingly.
이재성,김수평,정서호,이영,정인철,윤원식,이종건,천연희,이종승 대한산부인과학회 2002 Obstetrics & Gynecology Science Vol.45 No.4
신생아 루프스증후군은 피부질환, 간과 혈핵학적 이상 및 선천성 심차단을 특징으로 하는 질환이다. 산모의 anti-Ro (SSA)/La (SSB) 항체가 태반을 통해 태아로 전달되어 발생하는 것으로 보고되고 있는 선천성 완전심 차단은 출생 20,000명중 1명 정도의 발생빈도를 보이며, 다른 선천성 루푸스증후군의 증상이 출산 6개월 이내에 소실되는 것과 달리 영구적이거나 또는 치명적인 부작용을 발생시킨다. 이에 저자들은 무증상 산모에서 임신 29주에 태아완전심차단이 발견되어, 역으로 산모의 anti-Ro (SSA)/La (SSB) 항체를 확인하고 출산 후 신생아에서 자가 항체와 방실 차단을 확인해 신생아 루푸스증후군으로 진단한 예를 경험하였기에 간단한 문헌 고찰과 함께 보고하는 바이다. The neonatal lupus syndrome is characterized by skin lesions, hepatic and hematologic abnormalities and congenital heart block. Congenital heart block which is believed to be caused by transplacental passage of the anti-Ro (SSA)/La (SSB) antibodies from mother to infant, is known to occur in 1 in 20,000 live births. In contrast to other manifestation of neonatal lupus syndrome, which usually subside within 6 months after birth, congenital heart block is a permanent and potentially fatal complication. We experienced a case of neonatal lupus syndorme with congenital complete heart block in a newborn of asyptomatic mother with anti-Ro (SSA)/ La (SSB) antibodies.
박인양(In Yang Park),이종승(Chong Seong Yi),신종철(Jong Chul Shin),이지현(Ji Hyun Lee),이현정(Hyun Jeong Lee),강대호(Dae Ho Kang),김사진(Sa Jin Kim),김수평(Soo Pyung Kim) 대한산부인과학회 2002 Obstetrics & Gynecology Science Vol.45 No.3
N/A Objective: Much emphasis has been placed on the morbidity and mortality of infants delivered before 32 weeks of gestation, including intraventricular hemorrhage and respiratory distress. The incidence of these complications and their association with long-term sequelae are well defined. This information is important, especially when decisions regarding delivery have to be made. Although delivery at >32 weeks of gestation may be considered free of serious sequelae of prematurity, morbidities are still associated with delivery between 32 and 36 weeks of gestation. The purpose of this study is to determine the incidence of minor morbidities associated with premature delivery between 32 and 36 weeks of gestation. We tried to find out the proper time to decrease the minor perinatal morbidities and the adverse effect of tocolytic treatment. Met hod: The study population is consisted of infants delivered between 20 and 36 weeks of gestation at Kang Nam St. Mary's hospital from 1995 to 1999. Maternal and neonatal charts were abstracted for maternal past history, pregnancy complications and neonatal demographics comparing complications present at each gestational week. Mann-Whitney test and χ2 test were used to assess statistical significance. Results: There was no significant difference of delivery time due to maternal age and parity. There was increased risk of low Apgar score and low birth weight before 34 weeks of gestation. Neonatal death was significantly high before 32 weeks of gestation. Neonatal death, sepsis, intraventricular hemorrhage, respiratory distress, ventilatory equipment use was significantly high before 32-33 weeks of gestation. Hypothermia, feeding difficulty, jaundice, NICU admission was significantly high before 30, 32, 35, 35 weeks of gestation. So it is approved that minor perinatal morbidity was decreased after 34-35 weeks of gestation. Conclusion: Major morbidity was significantly high before 32-33 weeks of gestation and Minor morbidity was significantly high before 34 weeks of gestation. Therefore considering of minor and major morbidity, it is reasonable to postpone the preterm delivery until 34 weeks of gestation.
온주밀감의 산함량 감소를 위한 열처리 시 습도 및 가스조성의 차이가 과실품질에 미치는 영향
이지현 ( Ji Hyun Lee ),최영훈 ( Young Hun Choi ),한승갑 ( Seung Gab Han ),이평호 ( Pyung Ho Yi ),강영주 ( Yeung Joo Kang ) 한국식품저장유통학회 ( 구 한국농산물저장유통학회 ) 2012 한국식품저장유통학회지 Vol.19 No.1
This study was conducted to determine the effects of the humidity and gas composition on the quality of satsuma mandarins during their heat treatment, in an effort to reduce their acidity. To come up with different humidity and gas conditions, various plastic films were used. The fruits were wrapped with an 18-μm high-density polyethylene (HDPE) punched film, a 30-μm low-density polyethylene (LDPE) film, or a 100-μm LDPE film just before treatment at 30℃ for 55 hours. After heat treatment, the titratible acidity (TA) was significantly reduced while the soluble-solid content (SSC) showed no differences, which resulted in increased SSC/TA ratios in all the treatments. The fruits that were not wrapped with a film, however, which had low RH, developed higher ethanol and acetaldehyde contents than those wrapped with an 18-μm HDPE punched film, which had high RH and a similar gas composition. Among the films, the higher the CO2 concentration in the film was, the more the ethanol and acetaldehyde contents increased, which induced more off-flavor. It was thus concluded that high humidity and normal gas composition are favorable conditions for heat treatment to reduce the acidity of satsuma mandarins.
Lee, Seonki,Park, Seung-Kook,Kwon, Hyeokpil,Lee, Sang Hyun,Lee, Kibaek,Nahm, Chang Hyun,Jo, Sung Jun,Oh, Hyun-Suk,Park, Pyung-Kyu,Choo, Kwang-Ho,Lee, Chung-Hak,Yi, Taewoo American Chemical Society 2016 Environmental science & technology Vol.50 No.4
<P>Quorum quenching (QQ) has recently been acknowledged to be a sustainable antifouling strategy and has been investigated widely using lab-scale membrane bioreactor (MBR) systems. This study attempted to bring this QQ-MBR closer to potential practical application. Two types of pilot-scale QQ-MBRs with QQ bacteria entrapping beads (QQ-beads) were installed and run at a wastewater treatment plant, feeding real municipal wastewater to test the systems' effectiveness for membrane fouling control and thus the amount of energy savings, even under harsh environmental conditions. The rate of trans membrane pressure (TMP) build-up was significantly mitigated in QQ-MBR compared to that in a conventional-MBR. Consequently, QQ-MBR can substantially reduce energy consumption by reducing coarse bubble aeration without compromising the effluent water quality. The addition of QQ:beads to a conventional MBR substantially affected the EPS concentrations, as well as microbial floc size in the mixed liquor. Furthermore, the QQ activity and mechanical stability of QQ-beads were well maintained for at least four months, indicating QQ-MBR has good potential for practical applications.</P>