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급성 골수성 백혈병(M6)에 합병된 중추성 요붕증 1 예
김성연,조보연,이홍규,고창순,민헌기,김병국,김노경,신찬수,이명식,강덕현,조종태 대한내과학회 1989 대한내과학회지 Vol.37 No.2
Leukemia is known to be an extremely rare cause of diabetes insipidus. We report a case of diabetes insipidus as a complication of leukemia. An 18 year-old man was admitted because of polyuria polydipsia and fever. Bone marrow aspiration and biopsy revealed the diagnosis of acute erythroleukemia (AML, M6). On the water deprivation test, the diabetes insipidus was confirmed to be of the central type. He was managed with intranasal vasopressin for diabetes insipidus with good response. Induction chemotherapy was administered without response, and the patient died of septicemia and respiratory failure 2 months after initial diagnosis. A short review of the literature related to this subject is also presented.
민윤기,엄규동,황규현,염광원 대한마취과학회 1981 Korean Journal of Anesthesiology Vol.14 No.4
At present, spinal anesthesia is often recommanded for a safe operation and the management of pain. However the complications from the spinal anesthesia, such as hypotension, dyspnea, nausea and vomiting, pulmonary embolism, headache, auditory and visual disturbances, lumbago, urinary difficulty and neurologic sequelae have often been reported from time to time. Thus an attempt to study the complications of spinal anesthesia, particularly the differences of complications between needle size(22 gauge and 25 gauge), has been done by our department. The following results were observed; 1) The most common sequelae of spinal anesthesia was hypotension(35.6%) and, in order frequency, urinary difficulty(23.3%), headache(16.7%), lumbago(15.3%), nausea of and vomiting(12.8%), dyspnea(8.9%), auditory and visual disturbances(0.83%) and minor neurologic sequelae(0.56%). 2) The incidence of headache and lumbago was more frequent in the 22G. group, but there were no statistically significant differences(p>0.05). 3) The incidence of headache was higher in the females than the males and there were statistically significant differences(p<0.01). 4) The incidence of lumbago was higher in the fourth decade(21.7%), and females showed a higher incidence than in males and there were statistically significant differences(p<0.05). 5) The incidence of lumbago and headache and the degree of headache was without correlation to the number of punctures in both groups(22G group and 25G group). 6) The time to postoperative urination had no correlation to the level of anesthesia.
고온에서의 Fe-C-S 합금 중 Cu 의 열역학적 거동에 관한 연구
민동준,허기행,김대환,이창희 대한금속재료학회(대한금속학회) 1998 대한금속·재료학회지 Vol.36 No.12
The thermodynamic behavior of copper in molten Fe-C-S alloy at high temperature was investigated by chemical equilibrating technique. The effects of copper, carbon, sulfur content and temperature on the activity coefficient of copper in molten pure iron and carbon saturated were was determined by measuring the distribution ratio between silver and Fe-C-S-Cu alloy. The activity coefficient of copper in molteniren and carbon saturated iron at infinite dilution of copper were measured 11.02 and 28.50 at 1823K respectively. The interaction parameter between copper and copper, sulfur and carbon in molten iron at 1823K, was estimated as follows; ε^(Cu)_(Cu) = -4.80, ε^S_(Cu) = -2.544, ε^C_(Cu) = -4.60 The dependence of the activity coefficient in molten Fe-C alloy on temperature was determined as follows; For molten pure iron : lnγ^(oFe)_(Cu) = 4370/T For Fe-2wt%C : lnγ^(oFe-2wt%C)_(Cu) = 0.72 + 3840/T For carbon saturated iron : lnγ^(oFe_C)_(Cu) = 1.11 + 4100/T Combining the effect of temperature and the alloying component, the activity coefficient of copper could be expressed as follows ; lnγ^(Fe-C-S)_(Cu) = 4370/T·(1-X_(Cu))² + (2.15 + 4600/T)·2.54·X_s The possibility of removal of copper from steel by slag refing and evaporating technique was discussed.
백종문,이홍기,고정호,민동준 대한금속재료학회(대한금속학회) 1998 대한금속·재료학회지 Vol.36 No.12
The kinetic experiments have been made on iron oxidation in slag by oxidizing gases at 1387∼1500℃. The effect of temperature, FeO content and oxygen potential of gas on the reaction rate have been examined. The iron oxidizing rate is considerably increased with increasing temperature and FeO content in slag. It was also found that the rate controlling step of reaction have been depended on the temperature, FeO content in slag and (P_(co₂)/P_(co) as an oxygen potential at gas/slag interface. The dependence of the overall reaction rate constant on temperature and initial FeO content in slag at 1450℃ could be expressed as follows; log k_(overall) = -0.36-10,820/T[㏖/㎠·sec·atm] k_(overall) = 1.04×10^(-7)(wt%FeO)^(0.75)[㏖/㎠·sec·atm] In condition of high oxygen potential such as high FeO content and (P_(co₂)/P_(co)), the chemical reaction at interface between slag and gas might play a important role as a rate controlling step of overall reaction, which is controlled by the dissociation of CO₂ at slag/gas interface. But in case of low (P_(co₂)/P_(co)), mass transfer and chemical reaction at interface between slag and iron become important as a rate controlling step. The reaction mechanism of iron oxidization in slag by gas have been discussed in terms of rate constant for elementary reactions.
정종달,강철,민주홍,김광모,권병연 대한마취과학회 1983 Korean Journal of Anesthesiology Vol.16 No.4
An increasing interest in intravenous anesthetic techniques has resulted from the availability of more efficacious intravenous agents, possible discomfort of the patient on endotracheal intubation and the concern over anesthetic pollution in the operating room. This study was done to investigate the effect of intravenous anesthesia with ketamine on the respiratory system by comparing arterial blood gas analysis before and after the procedure. Analysis of arterial tlood for PCO_2, PO_2, pH, and base excess were carried out. Heart rate and blood pressure were monitored on 15 paienta in ASA class I for diagnostic or short procedures. Each patient was premedicated with atropine 0.01 mg/kg and Talium 0.2 mg/kg intramuscularly 30 minutes before the procedure. Ketamine was adnlinisteree intravenously 1.0-1.5 mg/kg or interamuscularly 3-5 mg/kg for induction of anesthesia. The anesthesia was maintained with ketamine 0.5~l.Omg/kg and Valium 0.1 mg/kg every 5 to 10 minutes. The results of this study showed that ketamine anesthesia soomed not to cause any untoward effect on respiratory function. In other words, ketamine aeems to be a safe and good intravenous anesthetic agent for diagnostic or short surgical procedures.
정팔진,민경석,이찬기 고려대학교 공학기술연구소 1976 고려대학교 생산기술연구소 연구보고 Vol.8 No.1
The water quality of the Han river which has been serving as a major water source for 'the Seoul Metropolitan area is discussed in this paper in terms of D0, BOD and others. The water quality upstream of the Jungryang-chun junction to Paldang was favorable during the investigation period: June 6 to July 27, 1977 with a flow range from 175 to 648㎥/sec. However, DO and BOD values were increased toward the downstream from the Jungryang-chun junction. The water quality downstream of the 2nd Han river bridge could not be simply interpreted due to the tidal effect.