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American planners were determined to creat in Korea a government friendly and responsive to American interests. In this context the goal of U.S. policy of resisting bring about an independent, democratic, stable Korean govetment capable of resisting Soviet Union domination over a protracted period of time. Freedom from Soviet Union domination is more important than complete independent of Korea. Immitially trusteeship was one path to the goal of extending and consolidating American power and influence. But Hodge and the top circles of the occupation ironically were moving firmly against trusteeship as a result of developing opposition throughout South Korea to trusteeship itself and, more importantly, because of their belief that trusteeship would assist communism. General Hodge and his advisors saw the rightists as the most reliable supporters of the American presence and regarded the left as dangerous or ccmmunist-dominated. Hodge had fostered relations with the Korea Democratic Party(KDP), which at the time book a pro-American stance and preferred a continuance of the American occupation to any suggestion of trusteeship. He had pursued policies from his arrival in Korea designed to strengthen the opposition to communism and to move away from rather than towards cooperation with the Sovit Union. Hodge from the beginning sought after cold war policy in Korea. He aimed at consolidation rightist democratic groups and drawing them into the military administration. At the same time he repressed the reftist groups. But innitially He exercised restraint in a striking oppressive measure to the reftist. He pursued potential cold war policy in the first stage.
분만 후 닥치는 수유와 관련된 유두 동통, 유방 울혈, 유선염, 유두 혼동은 모자동실을 시행하여 출생 후 가능한 빨리 엄마 젖을 직접 물리는 것이 가장 중요한 예방법인 동시에 모유수유를 성공하는 방법이다. 첫 수유를 분만실에서 시작하는 것이 중요하며, 출생 후 1-2시간 후 아기가 깨어 있다가 깊은 잠이 드므로 아기가 태어나서 첫 한 시간은 아기에게 모유수유를 시작하는 아주 중요한 시기다. 또한 모유는 매우 쉽게 소화되므로 하루 10회 이상 자주 수유하고 밤에도 반드시 젖을 먹여야 하므로 병원에서는 모자동실을 하여야 한다. 모유수유를 잘 시작한 후 황달, 툴은 변 때문에 의료진을 찾았을 경우 올바른 상담을 통하여 모유수유를 지속할 수 있도록 최선을 다하여야 하며 불필요하게 모유수유를 금하는 경우가 없어야 한다. 모유수유아에서 비타민 D, 철분의 보충에 유의하여야 한다. 생후 6개월 후에는 보충식이 필요하며 모유수유의 기간은 세계보건기구에서는 생후 2년까지를 권장하고 있다. Appropriate initiation of breast-feeding as soon as possible right after birth that can be facilitated by rooming-in, is the most important way of preventing postpartal lactation associated sore nipples, breast engorgement, mastitis and nipple confusion, and the best way of successful breast-feeding. It is very important to inititate the first breast-feeding at delivery room, and the first one hour of postpartum is a critical period of beast-feeding because newborns get into a deep sleep after 1-2 hours of awakening following the delivery. Moreover, rooming-in must be facilitated at hospital, because breast-feeding should be performed more than 10 times a day including night time, and because breast milk is easily digested. If a mother visits a pediatrician for neonatal jaundice and loose stool after the initiation of breast-feeding, proper consultation must be provided to maintain her breast-feeding performance and to prevent unnecessary cessation of breast-feeding. For breast-fed infants supplement of vitamin D and iron must be considered. As documented from WHO, the period of breast-feeding is recommended until 2 years of age, and additional supplement is necessary after 6-months of age in addition to breast-feeding.
The main goal of this research is develop raw materials of third synthetic materials, which are not friendly materials for environment, to produce functional wood powder composite pellet raw materials. This kind of raw materials used extrusion, injection and molding. the new materials with concentration of pvc/wood powder/yellow-earth in proportions have increasing wood powder ratio according to mechanical intensity increased, and yellow-earth ratio does not change with far infrared ray ejection. The new synthetic resin contains with wood powder removed from environment pollution. The biodegradable polymeric materials development is most important thing for keeping environment in harmony.
Study on exchange of fiber reinforced plastics. in this time, we use five kind of fibes(polyester, acryl, rayon, fiber, aramide, carbon)for reinforced ametrials. Test of tensile strength for each fiber RP by UTM, the result both of aramide fiber RP and carbon fiber RP are some higher value than glass fiber, so it is possibe to exchange of glass fiber in FRP Elongation percentage of aramide fiber RP and carbon fiber RP have some lower value than glass fiber RP, but the value is not big. In themal stress test of aramide fiber RP and carbon fiber RP are 134℃ and 137℃, the value bigger than glass fiber RP. And the value of impact test of aramide FRP are 12.2kg,cm/cm2, 12.4kg,cm/cm2 and carbon FRP are 11.5kg,cm/cm2, 10.4kg,cm/cm2, so it is some higher value than glass fiber RP. In the result of experiment, it is possible to exchange the glass fiber- for aramide fiber and carbon fiber in FRP.
A Gram-staining-negative, thin rod-shaped, anaerobic bacterium designated MCWD3T was isolated from sediment of the deep sea in Ulleung Basin, East Sea, Korea. The ranges of temperature, pH and NaCl for growth of this strain were 15– 40°C (optimum 29°C), 5.0–10.0 (optimum pH 6.5), and 1–5%, respectively. The major fatty acids were iso-C15:0 (30%) and iso-C15:0 dimethyl acetal (17%). The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, and unidentified aminophospholipids, phospholipids, and aminolipids. The fermentation product from yeast extract was acetate. Phylogenetic analysis based on 16S rRNA genes indicated that the isolate was related to Sporosalibacterium faouarense (92.8% sequence identity), Clostridiisalibacter paucivorans (92.6%), and Brassicibacter mesophilus (92.4%). However, the isolate was differentiated from these genera by both physiological and chemotaxonomical properties. On the basis of a polyphasic taxonomic analysis, we propose that MCWD3T represents a novel taxon with the name Abyssisolibacter fermentans gen. nov. sp. nov.
Acute idiopathic thrombocytopenic purpura(ITP) is one of the common hematologic disorders in children. Bone marrow aspiration(BMA) is often performed in children with acute ITP to rule out leukemia, aplastic anemia or other hematologic diseases. However, whether BMA is needed in children with typical clinical and hematological features of acute ITP have been questioned. This study was performed to examine the proper indication of BMA in acute childhood ITP Materials and Methods: The medical records and BMA reports of children with the provisional diagnosis of acute ITP were reviewed from January 1984 to December 2000. Patients were divided into two groups, one with typical and another with atypical clinical and hematological features of acute ITP Typical acute ITP group was characterized by the history of previous viral infection, well being appearance, no hepatosplenomegaly, no Iymphadenopathy, normal Hb, WBC, neutrophil count and peripheral blood smear except thrombocytopenia. A platelet count of 50×109/L or lower was the cutoff level. Results: Total 120 children with the provisional diagnosis of acute ITP were included. One hundred eighteen of them were confirmed to have acute ITP by BMAs. Of these, 66 had typical and 54 had atypical features. All of typical features and 52 of 54 with atypical features of acute ITP were confirmed to have acute ITP by BMAs. Two patients with atypical features of acute ITP were diagnosed as aplastic anemia and myelodyspalstic syndrome, respectively, by BMAs. Conclusion: This study concludes that BMA is not needed for the children with typical features of acute ITP but it is needed for the children with atypical features of acute ITP to rule out other hematologic disorders.
값이 싸고 자원이 풍부한 물유리에 H₂SO₄를 작용시켜 silicic acid를 조제하고 이것을 tetrahydrofuran(THF)로 추출한 후 다시 dioxane으로 재추출하였다. 추출된 silicic acid/dioxane은 acethylchloride로 반응시켜 아세틸화 규산을 합성하고 아세틸화규산은 trimetylchlorosilane과 반응시켜 trimetylpolysiloxane인 silicone polymer 합성하였다. 합성된 아세틸화규산과 silicone polymer는 I.R, NMR등으로 반응을 확인하였으며 이들 모두는 생성 당시 불안정하여 곧 가교되어 불용성으로 변하였다. silicone polymer는 THF, dioxane, acetone등에는 가용이나 bengene, hexane, CCl₄등에는 불용이며 분자량 약 3000, 융점 약 140℃인 잭색과립상의 polymer임을 알았다. Synthesis of polysiloxane by silylation of silicic acid with acethylchloride derived from industrial water glass has been investigated. The reaction consists of five steps : preparation of silicic acid from waterglass, extraction of silicic acid by THF, preparation of silicic acid/dioxane, acethylation of silicic acid /dioxine, and silylation of acethylated silicic acid. The silylating agents, and white amorphous granule with 3000 molecular weight, and the melting point 140℃, were soluble in THF, dixone, and acetone.