중환자에서 동맥혈 가스분석 횟수와 그로인한 실혈량에 대한 연구

이석열,전철우,정영수,오희숙,마분란,이정미,정혜영,이만복,이길노 순천향의학연구소;Soonchunhyang Medical Research Institute 2000 Journal of Soonchunhyang Medical Science Vol.6 No.1

Background : Arterial blood gas analysis is the most comon exam in intensive care unit. In this study, the frequency of blood gas analysis and the amount of blood loss after Blood Gas Analysis in Intensive Care Unit were observed. Methods : From November 1999 to February 2000, 115 patients admitted to intensive care unit at Soonchunhyang university Kumi hospital were studied prospectively for the frequency of blood gas analysis and the amount of blood loss after blood gas analysis in Intensive Care Unit. Results : The mean value of frequency of blood gas analysis was 6.41±6.49 and the mean value of amount of blood loss after blood gas analysis was 0.78ml. This was lower than that of other foreign reports. The patients with ventilator therapy above 24 hours showed higher frequency of blood gas analysis than that of not applied ventilator patients. Pulse oxymetry was applied to all patients and the frequency of blood gas analysis was decreased due to the use of strict pulse oxymetry. Conclusion : Doctors and nurses in intensive care unit keep in mind that adequate blood sampling is needed for the decrease of blood loss. Education and protocol for the decrease of blood loss after arterial blood gas analysis may be necessary.

미꾸리 仔魚에 대한 農藥의 影響

李廷烈 군산대학교 1983 群山水産專門大學 硏究報告 Vol.17 No.3

Short-term acute toxicity of agricultural chemicals (Rice-plant fever) to larvae of loach, Misgurnus angillicaudatus was examined by static bioassay. The larvae were exposed to 11 different concentration of agricultural chemicals for 1, 24, 48, 72, 96, and 120 hours in order to determine median lethal concentration (LC 50). The 100% mortality of larvae showed within 96, 72, 48 and 1 hours for 40, 50, 60 and 70 ppm respectively. The median lethal concentration (LC 50) values of the larvae were 25.61 ppm for 48 hours, 13.50 ppm for 96 hours and 10.19 ppm for 120 hours. The permissible toxicant concentration of acute toxicity to larvae was 1.11 - 1.64 ppm, and application factor of the agricultural chemicals was 0.082-0.121. The median lethal time (LT 50) for different concentration also was determined. The LT 50 of 1 ppm was found within 324.0 hours and 10 ppm was 127.1 hours, while the LT 50 of 30 ppm was 67.8 hours and that of 70 ppm was 40.7 hours.

중요 양식 대상 패류의 산란유발에 대한 자외선조사해수의 효과

이정재,이정열 제주대학교 해양연구소 1981 해양자원연구소연구보고 Vol.5 No.-

An induction of spawning by irradiated seawater with ultraviolet rays carried out in the laboratory to conduct fundamental studies on artificial spawning of some cultivated shells, i. e. Haliotis discus, Haliotis diversicolor superlexta, Turbo cornutus, Tapes variegata. Cyclina sinensis. The materials collected from Seongsan-po and Chuza-do during the spiwning season of these species. Stimulus methods for artificial spawning in this experiment were three methods ; UV-rays irradiated seawater used only, the UV-rays irradiation after temperature trestment and UV-rays irradiation after exposure to air. The rate of response and the time required for spawning on the amount of irradiation were observed. In an attempt to artificial spawning by irradiated seawater with UV-rays on the 5 species of shells, the rate of response for spswning in H. discus and H. diversicolor supertexta were effective to induce spawning but weren't in C. sinensis and T. variegata. The most effective discharging time was 4 hours after UV-rays irradiation. As for the amount of stimulus, it was obvious that the spawning rate increased with the amount of the irradiation and reduced the time required for initial spawning. UV-rays irradiation after temperature treatment and UV-rays irradiation after exposure to air were more effective than stimulus by UV-rays irradiated seawater used only. An ability of irradiated seawater caused spawning mediated by photochemical reactions in seawater depending on the enzyme catalyzing oxidative synthesis of prostaglandin. In this experiment, the results suggest that the effect of irradiated seawater with UV-rays to induce artificial spawning is to be recognition.

소라, Turbo cornutus SOLANER의 생식소 및 연체부의 칼로리 함량 변화

이정재,이정열 제주대학교 해양연구소 1979 해양자원연구소연구보고 Vol.3 No.-

밀새우 Palaemom (Exopalaemon) carinicauda HOLTHUIS의 呼吸代謝에 미치는 溫度 및 鹽分濃度의 影響

李廷烈 군산대학교 1982 群山水産專門大學 硏究報告 Vol.16 No.3

Much work has been done on heat recovery of exhaust gas relating on the decreased rate of fuel oil and efficiency of boiler, but gas rarely been done on the relation to the decreased temperature of exhaust gas, the loss of exhaust gas, the increased temperature of air, and the boiler efficiency of packaged boilers. The boilers for this experiment were 30t/h (A) and 20t/h (B) packaged boilers. The loss of exhaust gas was calculated by Bacharach Stack Less Calculator and carbon deoxide in exhaust gas was measured by Fyrite Co2 Indicator. The results were as follows; 1.When the temperature of exhaust gas was decreased, the decreased quantity of the loss of exhaust gas was increased and decreased loss showed 3.12% in (A) boiler and 2.95% in (B) boiler. And the decreased of exhaust gas temperature for decreasing 1% loss of exhaust gas was 24.10℃ in (A) boiler, 22.33℃ in (B) boiler. 2.The increased temperature of air for combustion was in proportion to the decreased temperature of exhaust gas and for increasing 1℃ of air the decreased temperature of exhaust gas showed 1.21 ℃ in (A) boiler and 0.92℃ in (B) boiler 3.In proportion to the temperature of exhaust gas, the loss of exhaust gas was increased; the loss of exhaust gas was decreased to 5.9-6.9℃ in (A) boiler and to 8.3-10.2% in (B) in boiler. 4.The efficiency of boiler was increased in proportion to the increased temperature of air for ; then the air temperature was increased to 52-72℃ , efficiency of boiler was 88.02-91.49% in (A) boiler, when the air temperature was increased to 65-78℃ that of boiler was 83.77-86.44% in (B) boiler.

저선량 감마선 조사가 왕겨의 항산화능에 미치는 영향

정석문,김정한,김동열,육홍선,변명우,이승철 慶南大學校 附設 基礎科學硏究所 2002 硏究論文集 Vol.16 No.-

왕겨에 200, 400, 600, 800 및 1000 Gy의 저선량의 감마선을 조사하여 항산화능의 변화를 관찰하였다. 총 페놀 화합물의 양은 무처리구의 경우 0.184 mM를 나타내었고, 200 Gy로 감마선을 조사하였을 때는 0.215 mM로 약간 증가함을 보였으나 이후 차츰 감소하였다. 전자 공여능은 무처리구에 비해 처리구의 경우 조사 선량별로 조금씩의 차이만 있을 뿐, 조사 선량에 대한 왕겨의 전자 공여능은 유의적인 큰 변화 없이 비슷한 활성을 보였다. Fe^2+-ions 킬레이팅 활성은 무처리구의 경우 68.25%를 나타내었으며, 200, 400, 600 및 800 Cy 에서는 각각 86.45, 85.61, 86.65 및 82.84%로서 무처리구보다는 증가함을 보였으나, 1000 Gy에서는 74.67%로 감소하였다. 지질 과산화 억제능은 무처리구에 비해 처리구는 약간의 증가를 보였으나 효과는 미비하였다. We studied the effect of small-dose of γ-irradiation to rice hull(RH) for its antioxidant ability. The RH was treated with 200, 400, 600, 800, and 1000 Gy of γ-ray at 70 Gy/min. Total phenol amount of unirradiated RH was 0,184 mM, after irradiation at 200 Gy it increased to 0,215 mM, while irradiation above 400 Gy up to 1000 Gy decreased that to unirradiated level. The electron donating ability of RH did not show significant change depend on irradiation. The chelating ability for Fe^2+ of unirradiated RH was 68.25 %, while that of 200, 400, 600 and 800 Gy irradiated RH showed 86.45, 85.61, 86.65 and 82.84 % respectively, but, 1000 Gy was decreased to 74.67 %. According to TBARS analyses, inhibition ability of lipid peroxidation by RH was not affected by γ-irradiation.

白蛤의 肉重量 算出 MODEL

李廷烈 군산대학교 1984 群山水産專門大學 硏究報告 Vol.18 No.3

In general, the productivity of fisheries products express by weight. Therefore determination of weight of aquatic animals is necessary in many experimental studies, But a shell products including bivalves are contain a lot of water in shell valves, it is impossible to estimate correctly their weight. Water adhering to aquatic organisms results in an overestimate of fresh weight, many different methods have been used to remove the adherent water before weighing. In this paper, model by biostatistics method try to determination of weight of shell-fish, hard clam. The relationship the total weight(TW) on the shell length(SL) showed exponential curve, MW = 0.5186+0.0511 SL2.8840 The relationship dry weight (DW) on the shell lenght (SL) is DW = -0.1150+0.0083 SL2.8840 and the relationship water weight(WW) on the shell lenght(SL) is WW = 0.3243+0.0860 SL2.8840 Another approach for measureing fresh meat weight of aquatic animals is done gravimetrically with a spectrophotometric estimate of adherent water providing a correction for adherent water. The determinations of weight by this fresh meat weight method gave not significant difference on the regression analysis between fresh meat weight and meat weight (directly determined). On the other hand, rate of water weight of hard clam was 28.5%, and the rate of water content was 86.2%.

광주전남지역 정상 신생아의 코의 형태와 계측치에 대한 연구

이유진,양정열,이승찬,천지선,박상기 朝鮮大學校 附設 醫學硏究所 2003 The Medical Journal of Chosun University Vol.28 No.2

Background and Objectives: Cleft lip and palate are common defects in congenital deformity. They are the most frequent deformity in the face. Nose deformity is most common among various facial deformity at the center of face. So we must operate to correct the deformity at the earliest stage to give a patient and parent spiritual relief from anxiety, and it is the trend of the treatment recently. We must know the facial anthropometry in newborn to try at the early stage, but there is a lack of literature and research on newborns. So we carried out this research to form base data for operations. Materials and Methods : The noses of 90 newborns in Gwangju-Cheonnam area were analyzed quantitatively, based on 10 nasal measuring points and 13 anthropometric values taken directly from the face of newborns. The relationship between the nasal measurements were studied in 11 proportion indices. Results : Following are our mean values in newborn. Width of the nasal root was 13. 9mm. Width of the nose was 22. lrnm, Width of the columella was 4. 5mm. Height of the nose was 22.6mm. Length of the nasal bridge was 20.1mm. Nasal tip protrusion was 8.9mm. Width of the nostril floor was 6.4mm. Thickness of the nasal ala and length of the nasal ala were 4.0mm, 15.4mm. Length of the columella was 3.9mm. The most common nostril shape was Type II (0-45 degrees in inclination of the nostril axis from the horizontal). Nasal index was 97.8. Columella-nasal tip protrusion length index was 43.9. Conclusion : The development of the columella was relatively incomplete in the case of newborn and was the result to appear. The normal indicies could be used clinically in identifying the it's normality as well as morphologic characteristics of the craniofacial structures. They also could be used in differential diagnosis between the morphologically similar congenital craniofacial anomalies. In preoperative design, in setting the criteria of the postoperative results, and assessing the effect of the operation, Finally, they supply the plastic surgeon and the other specialists in the craniofacial surgery with basic normal population data.

자동차용 실리콘 가속도센서의 개발(Ⅱ)

이종현,신장규,이상룡,천희곤,조찬섭,심준환,류인식,박석홍,허정준,박기열 경북대학교 센서기술연구소 1994 연차보고서 Vol.1994 No.-

자동차의 air-bag 장치에 실용될 수 있는 압저항형 단결정 실리콘 가속도센서 칩을 개발하기 위하여 결정 실리콘 미세구조의 제조방법을 확립하고, 단위공정의 검증을 통하여 일괄공정에 의한 PROTO-TYPE 칩을 만드는 기술을 연구하였다. 단결정 실리콘 미세구조는 선택확산법을 이용하여 정확히 선택된 영역에만 air-gap을 형성하여 미세구조의 측면식각을 방지하는 선택확산법에 의한 실리콘 마이크로머시닝 기술로 제조하였다. 일괄공정을 위한 단위공정확립을 위하여 PROTY-TYPE 8빔 브릿지형 가속도 센서를 제조하였다. 제조된 칩의 가속도에 따른 출력전압은 선형성을 나타내고 있으며, 감도는 약 50 ㎶/V·g로 나타났다. 이 감도는 50G용 가속도센서의 사양을 만족하지 못했다. 이는 공정에 의한 문제라기 보다는 가속도센서의 시뮬레이션에 의해 설계한 구조가 이미 원하는 감도에 못 미친다는 것으로 생각된다. 따라서 2차 공정으로 제조될 가속도센서의 파라미터를 SuperSAP 유한요소 패키지를 이용하여 실리콘 미세구조부의 파라미터에 따른 특성을 시뮬레이션하였다. 설계된 50G용 가속도센서의 mass Pad의 반경 및 빔 길이, 빔 폭, 빔 두께, 그리고 mass의 각 파라미터 값은 700 ㎛, 120 ㎛, 5 ㎛, 1.0 ㎎ 이었다. 반도체 공정기술, 관성질량 제조법 및 선택확산을 이용한 마이크로머시닝을 사용하여 일괄공정으로 8빔 브린지형 가속도센서를 제조하였다. We researched the establishment of the silicon microstructure fabrication technique to develop a piezoresistive type silicon acceleration sensor chip and the technique to make a proto-type chip by the verification of the unit-process. Silicon microstructure is fabricated silicon micro-machining by selective diffusion method. This method prevent a side-etching of microstructure because selective diffused region is only formed an air-gap. We fabricated a proto-type 8-beam bridge-type acceleration sensor to establish the unit-process for the batch-process. The output voltage of the chip represented linearity with acceleration, and the sensitivity was about 50 ㎶/V·g. But this sensitivity dosen't satisfy the requirements of a practical acceleration sensor. The cause of this result is assumed not process problem, but the structure designed by simulation isn't suitable already. Threfore, the characteristics of parameters of the acceleration sensor that will be fabricated by 2nd-process is simulated by SuperSAP finite-element package. The determined parameter values of beam length, beam width, beam thickness, mass, and mass radius are 120 ㎛, 5 ㎛, 1.0 ㎎, and 700 ㎛, respectively. We fabricated 8-beam bridge-type acceleration sensor by batch-process using a semiconductor process technique, proof-mass fabrication method, and micromachinig using selective diffusion.

소라, Turbo cornutus SOLANDER 의 酸素 消費에 關하여

李廷烈,李定宰 濟州大學 臨海硏究所 1978 해양과환경연구소 연구논문집 Vol.2 No.-

소라의 呼吸에 미치는 溫度 및 明·暗의 影響을 究明하고 週期性과의 關係를 調査한 結果는 다음과 같다. 1. 소라의 酸素消費는 晝夜에 따라 週期性을 나타내었는데 日沒 2時間 後에 酸素消費量이 가장 높았다. 2. 溫度에 따른 酸素消費量은 10∼25℃의 範圍에서 增加하였고 30℃ 에서 減少하였다. 3. 明·暗에 따른 酸素消費量의 크기는 常溫(20∼25℃)에서 自然條件 馴化群, 暗馴化群, 明馴化群의 順이었다. 4. 明 및 暗馴化群의 酸素消費量은 10℃의 경우보다 30℃에서 현저한 減少를 나타냈다. 5. 溫度 및 明暗의 영향은 두 群 사이에 서로 비슷한 傾向을 보였다. The effects of temperature, light and dark for the respiratory rate and the periodic oxygen consumption of the topshell, Turbo cornutus SOLANDER was measured. The oxygen consumption patterns showed circadian rhythms which increased form sunset to midnight and decreased form midnight to midday. The highest value of respiratory rate was appeared in about 2 hours after the sunset. In the temperature range of 10∼20℃, the oxygen consumption increased with the increase of temperature, but markedly decreased at 30℃. The oxygen consumption in the animals acclimated to natural condition under 20∼25℃ water temperature was superior to the light and dark condition, respectively. The oxygen consumption in the animals acclimated to light and dark condition were significantly decreased at 30℃ than 10℃ water temperature. The effects of temperature and light condition for respiratory rate was appeared similarly between A and B groups.