제왕절개수술에서 저혈압 예방을 위한 수액의 비교 관찰 : 제 1 보:척수마취

심재철,김완식,박동호,황영희,김흥대,김지영,차영덕,서병태 대한마취과학회 1982 Korean Journal of Anesthesiology Vol.15 No.3

Rheomacrodex-D 10% W/V in dextrose (500 ml) was prophylactically infused before anesthesia over 15 to 20 minutes to prevent hypotension during spinal anesthesia in 20 patients undergoing elective Casarean section. Apgar scores and the incidence and severity of hypotension were compared to results obtained in 20 patients who were given 500 ml of Hartmann's solution. The results were as follows; 1) Mean arterial pressure decreased up to 20 torr from control values in patients hydrated with Hartman's solution and also changed significantly in patients given Rheomacrodex-D (p<0.05). 2) The incidence and severity of hypotension at 10 minutes, and 15 minutes, and 15 minutes after spinal anesthesia (p<0.05) was significantly less in patients given Rheomacrodex-D than in patients hydrated with Hartmann's solution 3) The Apgar scores, both at 1 minute and 5 minutes, were significantly higher (p<0.05, p<0.005) in infants born of mothers given Rheomacrodex-D than in infants whose mothers were given Hartmann's solution. 4) The cases of hypotension defined as a descrease in systolic arterial pressure lower than 100 torr or a decrease in mean arterial pressure to 25% from control values were 12 cases in 20 patients hydrated with Hartmann's solution and 6 cases in 20 patients given Rheomacrodex-D.

경막외 Morphine 에 의한 동통관리

김완식,박동호,김흥대,석민호,김지영,차영덕 대한마취과학회 1980 Korean Journal of Anesthesiology Vol.13 No.4

The patients recieving epidural morphine were divided into two groups. One group(A group): epidural injection of 2 mg morphine mix with physiologic saline 10 ml were given to 13 patients with acute pain after surgery under epidural or light general anesthesia and chronic pain of chronic disease. The other group): epidural or caudal injection of 2 mg morphine mix with 2% lidocaine 400 mg were given to 5 patients. In A group, assesed single or continuous epidural injection. In B group, assesed epidural or caudal injection. All cases had considerable amelioration of pain which commenced with 2 to 15 minutes and was effectiveness 2 to 59 hours. Epidural morphine injection did not cause sympathetic depression or bladder dysfunction and it's analgesia was segmental.

작업환경에서 의자 및 조명 조건이 근로에 미치는 영향에 관한 연구

김종석,차상은,김상렬,이승주,김정동 한국산업안전학회 1998 한국안전학회지 Vol.13 No.1

This field study was conducted to survey the effect of seating & lighting conditions on work. The results were as follows ; Discomfortable parts of body caused by unsuitable sitting postures on work were low back 52.05%, leg 15.75%, neck 14.38% and arm 9.59%. Work conditions of sitting postures were needed arm rest, back rest of seat and adjustable seat height. Effect of work efficiency by lighting conditions were statistically significant relationship between glaring state of workstation and lighting state.

배가가스 중 일산화탄소 제거를 위한 촉매의 연구

이종일,도동섭,차왕석,오광중 고려대학교 공학기술연구소 1993 고려대학교 생산기술연구소 생기연논문집 Vol.29 No.1

A composite base metal oxide catalyst which consists of manganese dioxide and silver oxide was developed. Catalytic properties with thermal degradations and preparation methods were investigated using the oxidation reaction of carbon monoxide. It is shown that catalytic reactivity is dependent of oxidation state of each metal oxide and metal oxide catalyst has some advantage compare to the commercial platinum catalyst in the initial state.

한국산 맵시벌과(벌목(目))의 계통분류학적 연구 : 뭉툭맵시벌족의 재검토(뭉툭맵시벌아과(亞科))/Introduction/Materials & Methods Review of Tribe Tryphonini (Tryphoninae)

이종욱,차진열 고려대학교 한국곤충연구소 1993 昆蟲硏究誌 Vol.19 No.1

한국산 맵시벌科(벌目)의 계통분류학적 연구 15. 뭉툭맵시벌족의 재검토(뭉툭맵시벌亞科) 이종욱 · 차진열(영남대학교 이과대학 생물학과) 昆蟲硏究誌. 19 : 10-34, 1993. 한국산 뭉툭맵시벌족은 4속 11종이 기록되었으나 연구 결과 4미기록 속(**), 1미기록 아속(**), 11미기록 종 (*), 7신종 (??)이 추가되어 총 9속 29종이 분포하는 것으로 밝혀졌다. 종 목록은 다음과 같다; Genus Cosmoconus Foerster 뿔뭉툭맵시벌속; C. elongator Fabricius 뿔뭉툭맵시벌; **Genus Ctenochira Fo¨rster 가시발톱뭉툭맵시벌속; ?? C.ruficoxalis sp. nov. 붉은밑마디뭉툭맵시벌 (신칭), ?? C. nigroventralis sp. nov. 배검은 뭉툭맵시벌 (신칭); ?? C. basipectinata sp. nov. 가시발톱뭉툭맵시벌(신칭); **Genus Dyspetes Fo¨rster 경포뭉툭맵시벌속(신칭); *D. arrogator Heinrich 경포뭉툭맵시벌(신칭), *D. nigricans He & Wan 흑색경포뭉툭맵시벌(신칭),?? D. nogodanus sp. nov. 노고경포뭉툭 맵시벌(신칭); **Genus Erromenus Holmgren 얼굴뭉툭맵시벌속 (신칭); *E. melanotus Gravenhorst 수검은뭉툭맵시벌(신칭), *E. alpinator Aubert 알프스뭉툭맵시벌(신칭), *E. zonarius Gravenhorst 수염가두리뭉툭맵시벌(신칭), ??E. rufifemur sp. nov. 홍다리뭉툭맵시벌(신칭), *E. analis Brischke 얼굴뭉툭맵시벌(신칭), *E. pelbejus Woldstedt 검은발톱뭉툭맵시벌(신칭); **Genus Lagoleptus Townes 라고스뭉툭맵시벌속 (신칭); * L. rugipetus Townes 라고스뭉툭맵시벌(신칭); Genus Monoblastus Gartig 잎벌살이뭉툭맵시벌속(신칭); M. erythrurus Townes, Momoi et Townes 반빨간뭉툭맵시벌, M. clauseni Uchida 잎벌살이뭉툭맵시벌, ??M. jinjuensis sp. nov. 진주뭉툭맵시벌(신칭), ??M. nigriventus sp. nov. 청계뭉툭맵시벌(신칭); Genus Otoblastus Forster 오토뭉툭맵시벌속(신칭); O. marginator Kasparyan 오토뭉툭맵시벌(신칭); Genus Polyblastus Hartig 배작은뭉툭맵시벌속; P.(P.) wahlbergi Holmgren 배작은뭉툭맵시벌; Genus Tryphon Fallen 신라뭉툭맵시벌속; Subgenus Stenocrotaphon Kasparyan 배끝마디검은뭉툭맵시벌아속; T.(S.)kazachstanicus Kasparyan 참검은뭉툭맵시벌, T.(S.) nagahamensis Uchida 진빨간뭉툭맵시벌, T.(S.) obtustator Thunberg 배끝마디검은뭉툭맵시벌; Subgenus Symboethus Forster 신라뭉툭맵시벌아속; T.(S.) brevipetiolaris Uchida 신라뭉툭맵시벌, T.(S.) hinzi Heinrich 검은뭉툭맵시벌, T.(S.) punctatus Kasparyan 흑점뭉툭맵시벌, *T.(S.) incestus Holmgren 흑가슴뭉툭맵시벌(신칭), *T.(S.) brunniventris Gravenhorst 갈색뭉툭맵시벌(신칭); **Subgenus Tryphon Fallen 뭉툭맵시벌아속(신칭); *T.(T.) abditus Kasparyan 뭉툭맵시벌(신칭) The authors revised the Korean species of tribe Tryphonini. In the present study, we report 29 species, 9 genera including 7 new species, 11 newly recorded species and 4 newly recorded genera.

기관의 비정상 배기배출에 의해 생성되는 소음에 관한 연구

이민호,박명규,차경옥 한국산업안전학회 1997 한국안전학회지 Vol.12 No.4

This paper discusses prediction of the sound pressure level produced by simple engine exhaust systems(plain pipe, plain expansion chamber pipe, plain expansion chamber with internally extended inlet and outlet pipe, perforated pipe enclosed in a plain expansion chamber) and a computer program has been developed which predicts the sound pressure level and the frequency spectrum. The program utilizes unsteady flow gas dynamic theory and acoustic theory to predict the pressure-time history in the exhaust system and the mass flow rate-time history at the open end of the system and the sound pressure levels(⅓ Octave band levels) and the frequency spectrum in semi-anechoic room. The predictions are compared with measured levels and show a high degree of correlation.

한국산 맵시벌과(벌목(目))의 계통분류학적 연구 : 뭉툭맵시벌족의 재검토(뭉툭맵시벌아과(亞科))/사진자료 Review of Tribe Tryphonini (Tryphoninae)

이종욱,차진열 고려대학교 한국곤충연구소 1993 昆蟲硏究誌 Vol.19 No.1

공탑속도 및 과잉공기비에 따른 석탄유동층연소로의 조업특성

장현태,차왕석,태범석 한국산업안전학회 1999 한국안전학회지 Vol.14 No.3

The effects of air velocity and excess air on combustion characteristics were studied in a fluidized bed combustor. The domestic low-grade anthracite coal with heating value of 2010 ㎉/㎏ and the imported bituminous coal from Australia with heating value of 6520 ㎉/㎏ were used as coal samples. The combustion characteristics of mixed fuels in a fluidized bed combustor could be interpreted by pressure fluctuation properties, ash distribution and gas emission. The properties of the pressure fluctuations, such as the standard deviation, cross-correlation function, dominant frequency and the power spectral density function, were obtained from the statistical analysis. From this study, the combustion region increased with increasing air velocity but decreased with excess air due to combustion characteristics of anthracite and bituminous coal.

Temporal trends of the prevalence and incidence of atrial fibrillation and stroke among Asian patients with hypertrophic cardiomyopathy: A nationwide population-based study

Choi, You-Jung,Choi, Eue-Keun,Han, Kyung-Do,Jung, Jin-Hyung,Park, Jiesuck,Lee, Euijae,Choe, Wonseok,Lee, So-Ryoung,Cha, Myung-Jin,Lim, Woo-Hyun,Oh, Seil Elsevier 2018 INTERNATIONAL JOURNAL OF CARDIOLOGY Vol.273 No.-

<P><B>Abstract</B></P> <P><B>Background</B></P> <P>Atrial fibrillation (AF) and stroke are common in hypertrophic cardiomyopathy (HCM). We aimed to determine the prevalence and incidence of AF and stroke in patients with HCM during a 10-year period.</P> <P><B>Methods</B></P> <P>Using the Korean National Health Insurance Services database, we identified patients diagnosed with HCM from the entire Korean population between 2005 and 2015. The annual prevalence and incidence of AF and stroke in HCM patients were estimated.</P> <P><B>Results</B></P> <P>The prevalence of AF in HCM patients has gradually increased to 1.6-fold from 13.4% in 2005 to 20.9% in 2015. The incidence of AF ranged from 4.1 to 5.5%, a similar trend was observed for each year in HCM patients. The prevalence of stroke in HCM patients was approximately 10%, while that in HCM patients with AF was about 20%. During 8741 person-years, AF-related stroke occurred in 257 subjects among 2309 HCM patients with new-onset AF. The overall incidence rate of AF-associated stroke was 2.94 per 100 person-years. In subgroup analysis, the incidence rate of AF-associated stroke was 1.49 per 100 person-years in the under 45 year-old group and 1.48 per 100 person-years in the group with CHA<SUB>2</SUB>DS<SUB>2</SUB>­VASc score of 0 or 1 point in HCM patients.</P> <P><B>Conclusions</B></P> <P>The prevalence of AF in HCM patients gradually increased over 10 years. The annual risk of AF-associated stroke in HCM was over 1% even in younger patients and those with CHA<SUB>2</SUB>DS<SUB>2</SUB>­VASc score of 0 or 1 point, which provide evidence to support the prevention of stroke in HCM patients with AF.</P> <P><B>Highlights</B></P> <P> <UL> <LI> This is the first largest nationwide study on hypertrophic cardiomyopathy (HCM), a rare myocardial disease in Korea. </LI> <LI> The prevalence of AF in HCM patients gradually increases to 1.6-fold from 13.4% in 2005 to 20.9% in 2015. </LI> <LI> The annual incidence of AF in HMC patients was about 5%, and higher in female and the elderly. </LI> <LI> The prevalence of stroke in HCM patients with AF was about 20%, which were more than twice that in overall HCM patients. </LI> <LI> The risk of AF-related stroke in HCM patients was >1% per person-year even in younger patients or low CHA<SUB>2</SUB>DS<SUB>2</SUB>­VAS<SUB>C</SUB> score. </LI> </UL> </P>

Changes of Volatile Flavor Compounds in Low Salt-Fermented Anchovy Paste by Adding Koji

Cha, Yong-Jun 國立 昌原大學校 基礎科學硏究所 1994 基礎科學硏究所論文集 Vol.6 No.-

Koji를 첨가한 저식염 멸치젓의 숙성 중 휘발성 향기성분의 변화를 대조구와 분석 비교하였다. 총 106개의 휘발성 성분이 검출되었는데 이 중에서 79개의 화합물은 표준품으로 확인 동정되었다. 이들은 주로 aldehyde, ketone, alcohol, ester, aromatic hydrocarbon, furan 및 nitrogen-containing화합물로 구성되어 있었다. 숙성 중 두시료에서 aldehyde 및 ester류의 화합물의 종류와 함량이 가장 많았다. 특히 koji를 첨가한 멸치젓에서는 대조구에서는 검출되지 않은 2,6-dimethylpyrazine, 2-ethtyl-6-methylpyrazine, trimethylpyrazine, 2-ethyl-3,5-dimethylpyrazine 및 tetramethylpyrazine이 검출되었으며 2-phenylethanol도 검출되었다. Volatile flavor compounds in low salt-fermented anchovy pastes by adding koji(Koji), compared with Control, were analyzed by simultaneous steam distillation-solvent extraction/gas chromatography/mass spectrometry. Volatile compounds(106) were detected in both samples during fermentation. Among these, 79 compounds were positively identified and were composed mainly of aldehydes, esters, alcohols, detones, nitrogencontaining compounds in both samples. Alkypyrazines, such as 2,6-dimethylpyrazine, 2-ethyl-6-methylpyrazine, trimethylpyrazine, 2-ethyl-3,5-dimethylpyrazine and tetramethylpyrazine, and also 2-phenylethanol were identified only in Koji.