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Al-Ni-Co-Si 준결정 코팅층의 미끄럼 마찰과 마모특성에 미치는 온도 및 용사방법의 영향
金在洙,김우찬,Eric Fleury,金道鄕,金元泰,安孝錫,李尙穆 대한금속재료학회 2002 대한금속·재료학회지 Vol.40 No.10
Powders of Al-Ni-Co-Si alloys were produced by gas-atomization under protective N_2 atmosphere. The gas-atomized powders were sieved to select them having a size range of -200∼+400 mesh. Quasicrystalline coatings were deposited onto the 304 stainless steel substrates using two thermal spraying techniques: high velocity oxygen fuel (HVOF) and air plasma spraying(APS). The friction and wear behaviors of the coatings were evaluated under the various conditions. The wear amount of both the coating and the chromium coated cast iron disc during the testing was determined by measuring the weight loss after the test. Analysis of the wear debris and of the wear track on both the coating and Cr coated cast iron disk was observed by using scanning electron microscopy. Friction coefficient of the plasma coating was about 0.36 and of the HVOF coating was about 0.43. The APS-deposited coatings, which had a higher level of porosity, exhibited a higher friction coefficient and lower wear resistance than the HVOF processed coatings. However, as the temperature during wear testing increased, the wear resistance of APS was improved and tended to be similar to that of HVOF coatings. Higher wear resistance of HVOF was attributed to the densification of the coating sub-surface with lower porosity and agglomeration of shall wear debris into large cylindrical particles and foramtion of intermediate layer.
侖承熙,金德起,金忠泰 경희대학교 체육대학 한국체육과학연구소 1980 體育學論文集 Vol.8 No.-
Assuming an attempt to happen many external Wounds during raching and practicing this study was conducted and analiged with the following results about the kinds of the external wounds, the location of the external wounds, and their cause and treaments to be cared. 1. From 11 locotions of human body to the external wounds except head, abdomen, upper arms, fore arms and hands have been shown 70 coses. 2. The sorts of the external wounds were sprain, dislocation, fracture, contusion, muscle pain, obrasion and tendon rupture. 3. The most frequent sort of external wound is muscle pain (45.7%). next fequent sort of external wound in sprain (21.4%) and the least is facture (1.4%). 4. The causes of the external wounds were their own mistakes and idleness, (41 person 77.1%) unavoidable causes (9 person 17.2%) mistakes of athers (3 person 5.7%) whien Were due to ignorance plenty of exereise and Warming up that should be needed plenty of exercise according to the plan before the Trach and Field.
吳仁赫,金容泰,李眞悟,陳秀一,林鍾遠 최신의학사 1969 最新醫學 Vol.12 No.6
For years after the introduction of gastroendoscopy in 1932, frequent efforts 1, 4, s, 9, s, 101 20121) were made to compare the relative value of roentgenologic and gastroendoscopic examinations in the diagnosis of gastric diseases. Today it seems fairly obvious that roentgenologic examination is the primary method for screening of stomach diseases and gastroendoscopy is an adjunct to it. However, gastroendoscopy performs its greatest service in the detection of lesions which, for one reason or another, had _not been. found at roentgenologic examination. It is quite clear that by the judicious use of both methods - greater. diagnostic accuracy can be obtained than by the use of either method alone. This is a report of six cases showing the different findings between the roentgenologic and gastroendoscopic examination, and some commentments are described with some references appeared previously.
李萬相,李重浩,金文泰 圓光大學校 農村副業問題硏究所 1978 農村副業問題硏究 Vol.1 No.-
감의 減數分裂時期, 大小胞子囊, 大小胞子, 雌雄配偶體形成에 對하여 調査하였던바 그 結果는 다음과 같다. 1) 小胞子의 減數分裂은 5月11∼15日 사이에 中期, 4分子期가 된다. 2) 大胞子의 減數分裂은 5月17日前後에 일어난다. 3) 감은 內外珠皮로 되었으며, 珠心組織은 小數의 細胞層으로 되었고, 胚囊의 內被는 規則的으로 되어있다. 4) 完全胚囊이 大部分이지만 減數分裂異常으로 20%程度 異常胚囊이 생기는데, 이것은 먹시 1果당 平均 種子가 8,5個로 80% 結實된것과 一致된다. 5) 小胞子母細胞減數分裂은 大部分正常的이였으나 開花期에 있어서 正常花粉量은 적다. 6) 감에 있어서는 成熟花粉이 되어도 葯內에 융담組織이 殘存하는 것이있다. Present experiment was carried out to examine meiosis time, mega-and microsporangium, mega-and microsprangium, mega-and microspore, and female and male gametophyte formation of persimmon, the results of which were summarized as follows. 1. Metaphase to tatrad stage of meiosis of microspore take place from 11th to 15th. 2. Meiosis of megaspore takes place before and after May 17th. 3. Integument consists of inner and outer integument and nucellar tissue consists of several cell layers and endothelium is regular. 4. Abnormal embryo sac of about 20% is due to irregular meiosis. Accordingly, this accords with the fruit setting of 80% as 8.5 seeds in average per a fruit fo Meogsi, a variety of persimmon. 5. Meiosis of microspore mother cell is mostly regular, but the guantity of normal pollens at flowering time is little. In the persimmon, 6. Tapetal tissue in anther remains some what still till the pollens are mature.