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7050 Al합금의 가공열처리가 미세조직변화와 피로성질에 미치는 영향
김문호,권숙인 ( M . H . Kim,S . I . Kwun ) 한국열처리공학회 1991 熱處理工學會誌 Vol.4 No.4
The effects of thermomechanical treatments on microstructure and fatigue properties of 7050 Al alloy were investigated. The precipitation kinetics changed to a faster rate due to cold deformation employed in this special TAHA thermomechanical treatments including pre-aging, plastic deformation and two step final-aging. The G.P. zones in the under-aged condition were cut by dislocations and dissolved during the plastic deformation. During the low cycle fatigue, the T6` condition showed cyclic hardening behavior whereas the TMT5, TMT27 and T76 conditions showed cyclic softening at above 0.7% total strain amplitudes. The ΔK_(th) value of TMT27 was improved more than two times, compared with that of T76 condition. The T6` with small shearable precipitates resulted in the markedly high ΔK_(th) value. This is thought to be resulted from dislocation reversibility and roughness-induced crack closure due to planarity of slip.
손재근,김문호,Sohn J.K.,Kim M.H. 한국응용곤충학회 1980 한국식물보호학회지 Vol.19 No.3
벼 흰빛잎마름병의 저항성의 품종간 차이와 그 유전양식을 조사하여 저항성품종육성의 기초자료로 활용코저 몇 가지 시험을 수행하여 얻어진 결과는 다음과 같다. 1. 최고분얼기와 출수기때의 저항성정도는 품종에 따라 상이한 반응을 보였고 공시품종중에서 IR2061-465-1-5-5, IR2061-553-6-9, IR1561-228-3-3, 밀양 42호는 공시된 3균주에 대해 최고분얼기나 출수기에 모두 높은 저항성을 보였다. 2. 질적저항성이 동일한 품종군에 속하는 품종중에서도 저항성정도의 양적인 차이는 크게 인정되었고, 그 차는 품종군별로는 밀양 23호군에서 균주별로는 II 균군에서 크게 나타났다. 3. IR2061-465-1-5-5와 IR1561-228-3-3의 II균군에 대한 저항성의 유전은 $F_1,F_2$ 및 $F_3$ 세대의 분리양상으로 보아 $1\~2$개의 유전인자에 의해 저항성이 지배된다고느 보기 어렵고 상당수의 유전인자가 이에 관여하는 것으로 생각된다. The inheritance and varietal differences of resistance to bacterial leaf blight caused by Xanthomonas oryzae in rice were studied. Among eighteen cultivars used, 'IR2061-465-1-5-5', 'IR2061-552-6-9', 'IR 1561-228-9-3', ana 'Milyang42, were found to have a high level of resistance to the three isolates of X. oryzae at maximum tillering and flowering stage. Varietal differences in lesion development of the cultivars belonging to the same varietal group were clearly recognized. For the genetic study on bacterial leaf blight resistance, two rice breeding lines 'IR2061-465-1-5-5', 'IR1561-228-3-3' were crossed with susceptible cultivar 'Milyang 23'. The $F_1,F_2,\;and\;F_3$ progenies were evaluated at flowering stage using the bacterial isolate 'JN 7853'(II). Average lesion length of the $F_1$ plants of the crosses showed longer than that of resistant parents, and the frequency distribution of lesion length in the $F_2\;and\;F_3$ populations showed continuous variation.
姜會洋,崔閏壽,金文鎬 최신의학사 1973 最新醫學 Vol.16 No.1
A substantial amount of dustfall and poisonous material from the smokes take factories have been found out in the campures of the elementary schools in a section of Taegu. This research will pursue the amount of the dustfall from May 1. 1972 to August 30, 1972 and disase the harmfulness of the dust to the students health. 1. The average quantily of the dustfall per mouth play round 430 mg/m2 classroom 240 mg/m2 fence 550 mg/m2 2. The dustfall was shown to he the greatest amount in June. 3. The dust around fence was found out to be most pernicious. 4. The poisonous material with its several constitents was shown to be heighest in June.
姜會洋,崔閏壽,金文鎬 최신의학사 1973 最新醫學 Vol.16 No.1
A survey was made, through questonaire on children's health in soure eleimentary schools in a section around Taegu in september, 1972. This survey will show as troubes in studyging caused from uarious diseases, medical treatment and cost of the medical treatment: 1. The clildren in the troubes in studying from diseases cover 62.4% of all children and the clildren in the third grade were highest by showing 75.8%. 2. Average days of lying in bed, per mouth were, in the case of the third grade. 5, 5. 3. Average days of lying in bed per child were 1.20. 4. The systoms of disease are as follous. Respirotory disease: 47.5% digestive trouble: 31.9% otorhinolaryngologic disease: 12.8% 5. The number of the patient who could receive medical treatment covers 21.9% and mast of the drugstore by showing 12.1%. 6. The cost of the drugstore is the most reasouable by showing 309.61 won each child.
High Epidural Block Anesthesia가 호흡기능에 미치는 영향
서병태,안창근,최근춘,김문호 中央醫學社 1971 中央醫學 Vol.21 No.6
Certain aspects of respiratory function and muscle power of hands were studied before and after the induction of high and broad epidural block anesthesia with 30m1. of 1% lidocaine in patients with normal respiratory systems. 1 The changes in vital capacity and maximum breathing capacity after the anesthesia were observed somewhat great, but there were no important changes in arterial blood PH, Pa C02 and standard bicarbonate. The muscle power of hands grasping after the anesthesia was observed and there was greater degree of weakness in hand grasping power after the anesthesia. It is concluded that no important degree of respiratory impairment during the resting state after the anesthesia. Rather important degree of muscle relaxation in the chest, diaphragm, abdomen and upper exrtemities resulted in after the high epidural block anesthesia, even with the use of lower concentration of lidocaine as 1% was discussed.
서병태,안창근,최근춘,김문호 中央醫學社 1971 中央醫學 Vol.21 No.6
Drug intoxication with coma patients of I.C.U in N.M.C for 6 years from April, 1965 to Oct, 1971 were reviewed. It was seen that barbiturate poisoning ,was the most common one and the parathion intoxications were not a little. The other causes of acute poisoning was seen such as rodenticide, acid alkali, meprobamate, etcetra. Meticulous treatment with respirator and prognostic problems related to death rate were discussed.