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KS H ISO 1242 표준의 평가 : 라반딘 정유의 산값 측정
전혜림,이은지,장혜진,손현화,김건,김남선,전명숙,이동선 서울여자대학교 2010 자연과학연구논문집 Vol.22 No.-
The acid value (AV) as well as the ester value of essential oil is an important index to evaluate quality of essential oil. The official standard analytical method of KS H ISO 1242 dealing with “Essential oils - Determination of acid value” was assessed experimentally using two lavandin essential oils obtained in France as an example. One French lavandin oil sample showed the results of AV= 0.9 by both indicator method and potentiometry. Another sample showed AV = 1.9 by indicator method and AV = 1.6 by potentiometry. Latter lavandin oil sample exhibited significantly higher acid value than maximum value of 1 described in the standard. This result suggests that latter lavandin oil was contaminated, because this oil was contained in an orange juice bottle. Results of this study proved that KS H ISO 1242 could be used as a suitable scientific standard for the determination of acid value of essential oils.
토끼에서 Etofenprox와 Spinosad 합제의 국소자극성 시험
황윤환,김명석,송인배,박병권,양승호,임용현,송치용,안성한,남현수,임정교,정상일,명노일,윤효인 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2008 動物醫科學硏究誌 Vol.15 No.1
This study was performed to evaluation the skin and eye irritation of etofenprox 8% and spinosad 4% combination in male New Zealand White rabbits. In skin irritation test, the combination of etofenprox and spinosad did not showed any change of body weight but caused slight skin irritation with the P.I.I. (primary irritation index) value 0.25. The etofenprox and spinosad combination showed severe eye irritation 1 h, 24 h, 48 h, and 72 h after ocular treatment, having the A.O.I. (acute ocular irritation) value of 37.3. Therefore, these result indicated that the combination of etofenprox and spinosad might be irritant formulation on eye and skin.
Associations of night shift status during pregnancy with birth outcomes
Se Jin Lee(Se Jin Lee),Chorong Kim(Chorong Kim),Eun Ju Lee(Eun Ju Lee),Myoung-Nam Lim(Myoung-Nam Lim),Jeeyoung Kim(Jeeyoung Kim),Sunghun Na(Sunghun Na),Woo Jin Kim(Woo Jin Kim),Ko-CHENS study group(Ko 한국환경보건학회 2022 한국환경보건학회 학술대회 자료집 Vol.2022 No.5
Lim, Hyung-Gyu,Kim, Jong Hoon,Shin, Dong Ho,Woo, Seong Tak,Seong, Ki Woong,Lee, Jyung Hyun,Kim, Myoung Nam,Wei, Qun,Cho, Jin-Ho Pergamon Press 2015 Bio-medical materials and engineering Vol.26 No.1
<P>Many types of fully implantable hearing aids have been developed. Most of these devices are implanted behind the ear. To maintain the implanted device for a long period of time, a rechargeable battery and wireless power transmission are used. Because inductive coupling is the most renowned method for wireless power transmission, many types of fully implantable hearing aids are transcutaneously powered using inductively coupled coils. Some patients with an implantable hearing aid require a method for conveniently charging their hearing aid while they are resting or sleeping. To address this need, a wireless charging pillow has been developed that employs a circular array coil as one of its primary parts. In this device, all primary coils are simultaneously driven to maintain an effective charging area regardless of head motion. In this case, however, there may be a magnetic weak zone that cannot be charged at the specific secondary coil's location on the array coil. In this study, assuming that a maximum charging distance is 4 cm, a circular array coil-serving as a primary part of the charging pillow-was designed using finite element analysis. Based on experimental results, the proposed device can charge an implantable hearing aid without a magnetic weak zone within 4 cm of the perpendicular distance between the primary and secondary coils.</P>
Antimicrobial resistance of streptococci isolated from mastitic bovine milk samples in Korea.
Nam, Hyang-Mi,Lim, Suk-Kyung,Kang, Hyun-Mi,Kim, Jae-Myoung,Moon, Jin-San,Jang, Keum-Chan,Joo, Yi-Seok,Kang, Mun-Il,Jung, Suk-Chan AAVLD 2009 Journal of veterinary diagnostic investigation Vol.21 No.5
<P>The aim of this study was to determine the antimicrobial resistance of streptococci isolated from mastitic bovine milk samples. A total of 178 isolates belonging to 6 different Streptococcus species were examined: S. uberis (n = 99), S. bovis (n = 30), S. oralis (n = 24), S. salivarius (n = 13), S. intermedius (n = 7), and S. agalactiae (n = 5). Only 8.9% (16/178) of the isolates were susceptible to all antimicrobial agents tested in this study, and S. agalactiae and S. intermedius isolates were all resistant to at least 1 antimicrobial agent tested. Overall, the most frequently observed resistance was to tetracycline (61.2%), followed by lincomycin (43.2%), gentamycin (35.3%), oxacillin (34.3%), and erythromycin (28.6%). Cephalothin and penicillin were the only antimicrobial agents to which most of the streptococci (>or=92%) were susceptible. Wide differences in the prevalence of resistance are apparent among the individual species: S. salivarius displayed exceptionally high resistance to cephalothin (23.0%) and oxacillin (76.9%) and S. agalactiae (20%) and S. intermedius (14.2%) to penicillin. Streptococcus salivarius and S. agalactiae were all susceptible to erythromycin, but others showed various rates of resistance ranging from 12.5% to 42.8%. Resistance to 3 or more of 7 antimicrobial agents was observed in all species (37.6%, 67/178).</P>
Myoung Nam Kim,Bo A Lim,Jin Young Hong,Jeung Min,Ji Hee Park,So Young Jeong 한국문화재보존과학회 2018 보존과학회지 Vol.34 No.4
This study involved a comparative analysis of the correlation between meteorological elements and the concentration of airborne fungi(CFU) in relation to biological damage to two temples on piedmonts, which is a cultural heritage building. The work compared Beopjusa temple in Boeun(Chungcheongbuk-do Province) and Seonamsa temple in Suncheon(Jeollanam-do Province). Twelve meteorological elements and the CFU were measured and the Pearson correlation analysis was used to determine the degree of the relationship between them. The results showed that Beopjusa temple had high wind speed, high total horizontal radiation, high evaporation, and large number of days with precipitation. Seonamsa temple had high air temperature, high relative humidity, high dew point temperature, high sea level pressure, high precipitation, and high CFU. The CFU at Beopjusa temple did not have a linear correlation with meteorological elements, but at Seonamsa temple it was highly positive correlated with the number of days with precipitation, relative humidity, and precipitation, and was highly negative correlated with total horizontal radiation. In addition, Beopju and Seonamsa temple had a common linear relationship between factors not affected by the topographical conditions, and had a individual linear correlation between factors affected by the topographical conditions.
Lim, Joon Seok,Kim, Daehong,Baek, Song-Ee,Myoung, Sungmin,Choi, Junjeong,Shin, Sang Joon,Kim, Myeong-Jin,Kim, Nam Kyu,Suh, Jinsuk,Kim, Ki Whang,Keum, Ki Chang Springer International 2012 EUROPEAN RADIOLOGY Vol.22 No.8
<P>To evaluate the utility of perfusion MRI as a potential biomarker for predicting response to chemoradiotherapy (CRT) in locally advanced rectal cancer.</P>
김남중,장성호,임혜자,채병국,공명훈,김종욱 대한마취과학회 1994 Korean Journal of Anesthesiology Vol.27 No.4
Emergency surgical patients are more frequently in critical state than elective patients and they have not enough time for physical and laboratory examinations. The evaluation of perio-perative data will improve the outcome of emergency operation. We analyzed 1053 anesthesias for emergency operation which were performed at the department of anesthesiology, Anam Hospital from September 1992 to August 1993 clinically and statistically according to age, sex, physical status, department, anesthetic duration, method and agent, types of trauma, amount of transfusion, etc. The results were as follows; 1) The percent of emergency surgery cases was 13.6 of total surgical patients. 2) The ratio of male to female was 1.15:1. 3) About 61.1% of all emergency patients were in the 21-40 years age group. 4) According to the ASA classification of physical status, the percent of patients in emergency class 1 and 2 was 86.2 of the total patients. 5) The most common operation was Cesarean section (19.9%), and appendectomy (13.8%) the next. 6) The most common anesthetic method for emergency operation was general anesthesia with enflurane. 7) The obstetric cases were most common and the general surgery cases were the next. 8) The percent of the cases which took less than 2 hours duration was 82.4 of total operation. 9) The transfusion was done in 108 cases (10.3%) and less than 2 units was transfused most frequently. 10) The transference to ICU was done in 144 (13.7%) cases and the patients of general surgery were transfered to ICU most frequently. 11) The majority of injuries were classified as blunt trauma (86.6%) while 13.4% were classified as penetrating trauma. 12) The lagest number of injuries involved the upper extremity (47.8%) and the next was the head & neck (31.9%).