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하이퍼큐브에서 불안정 큐브 개념을 이용한 고장 허용 라우팅
성낙운,조성배 慶星大學校 1994 論文集 Vol.15 No.2
Multiprocessor systems have been researched due to the need of high performance computers and the development of VLSI technology. The objective of this thesis is to present an improved fault tolerant routing algorithm such that one processor can communicate with others though some of processors of the hypercube computer may be faulty. We propose the algorithm that is fault-tolerable using the information of the state of neighbor node and the number of fault of unsafe neighbor node in hypercubes with the arbitrary number of fault nodes.
成洛戌,孫錫龍,朴相一 충북대학교 농업과학기술연구소 1990 農業科學硏究 Vol.8 No.1
This study was carried out to examine the possibi1ity of using wild species of sesame as a genetic resources for breeding diseases resistance. ; Wild sesame(S. radiatum) has low oil content with higher linoleic acid composition. Diseases resistance of S. radiatum showed strong resistance on four major diseases. Cross between cultivar and wild has no biable seed with normal capsule setting.
Drosophila melanogaster 韓國 自然集團에 있어서 P-M System에 依據한 Cytotype 分布 硏究
成耆昌,安成晥 성균관대학교 기초과학연구소 1988 論文集 Vol.39 No.1
Hybrid dysgenesis, aberrant phenomena, found in certain interstrain hybrids of Drosophila melanogaster, is caused by the interaction of chromosomal and cytoplasmic factors. 10 natural populations of D. melanogaster from Korea were investigated in order to determine the distribution of P factor and M cytotype, two components of P-M system. The results showed that: 1) The P factor activity for potential GD sterility is absent or present at only very low frequencies in these populations. 2) All locations show rather similar distributions, indicating weak M cytotype. The levels of activity of M cytotype were appeared to be variable among 10 populations. 3) Q cytotype, which cause immune to the P factor, was found at high frequencies in these populations. 4) The results seem to suggest that polymorphism of M and Q cytotype exists in Korean natural population.
Seong Hoon Kim,Ji Hoon Kim,Jae Hoon Lee,Dong‑Woo Suh,Jae Sang Lee 대한금속·재료학회 2022 METALS AND MATERIALS International Vol.28 No.9
Prediction of retained austenite fraction is quite important in designing advanced high strength steels since retained austeniteis the source of transformation-induced plasticity. The present study investigates the phase constitution of a medium-carbonQ&P steel by comparing various approaches to the transformation stasis of bainitic ferrite and applying them to the partitioningprocess. Among them, the modified GEB approach gave the best agreement with the experimental observation, includingthe effects of heat-treatment condition and chemical composition on phase constitution. This indicates phase transformationduring partitioning can be effectively described by the physics of Gibbs energy balance approach.
성무경,김상윤 건국대학교 의과학연구소 1996 건국의과학학술지 Vol.5 No.-
The nonspecific ulceration of small bowel is extremely rare. But we recently experienced a case of panperitonitis from the perforation of nonspecific jejunal ulceration. The patient was a 25 years-old female, who was brought to the hospital because of sudden diffuse abdominal pain. She underwent operation under the impression of perforated peptic ulcer, but it was revealed by operative finding that she had jejunal ulceration with perforation. The cause of the ulceration was pursued thoroughly without positive result. We finally diagnosed the condition as nonspecific jejunal ulceration with perforation, and we report
成樂其,金聖勳,李權益 대한동의병리학회 1996 동의생리병리학회지 Vol.10 No.2
“怪病必瘀 久病必瘀”라 하여 癌 등의 難治病에는 瘀血證이 자주 나타나, 直接的인 抗腫류作用외에도 惡性腫瘍으로 인한 疑血과 織溶系統을 調節하는 作用이 있는 活血化瘀法은 현재 임상세선 活用 價値가 높다. 이에 本 論文에서는 活血祛瘀劑 및 安神劑로 活用되고 있는 丹蔘을 이용 抗癌 및 抗轉移 效果를 糾明하고 活性 物質을 採索함으로써 癌 治療에 도움이 되고자 한다. in vitro에서 B16-Fo와 A549 癌細胞 등의 패癌株에 對한 細胞毒性, 複合細胞外基質과 單味細胞外基質에 對한 細胞附着 沮止作用, 血小板疑集 促進劑중의 하나인 ADP에 對한 血小板凝集抑制作用, 有效 分劃으로부터 分離된 有效物質의 構造同定, 多樣한 사람 癌株에 對한 ED(50)값 및 自然殺害作用을 檢討하고, in vivo에서는 丹蔘의 有效 分劃을 S-180이 移植된 ICR 생쥐에 經口 投與한 後, 體重變化와 T/C%를 尾靜脈에 B16-Fo를 注入 후 C157BL/6의 pulmonary colonization assay, 臟器무게, WBC 및 platelet 數 等을 測定하였다. 丹蔘 分劃중 ethly ether층이 抗癌 및 抗轉移效果에 있어 가장 有意性있는 效果가 認定되었고, 이 층에서 分離된 tanshione IIA는 丹蔘의 主要 抗癌活性物質로 이를 이용한 數種 癌株의 細胞毒性 實驗에서 ED(50)이 모두 1.5㎍/㎖ 以下로 나타나 有效한 抗腫瘍 效果을 보였으며, 10㎍/㎖부터 HL-60에 대해 DNA fragmentation을 나타냈다. In order to confirm the antitumor effect of Salviae miltiorrhizae Radix(SMR) and isolate its active compound, the experiment was done. In vitro cytotoxicity against several cancer cell lines, inhibition of cell adhesion to extracellular matrix, inhibition of platelet aggregation by ADP were studied, in vivo T/C % of S-180 bearing ICR treated with ethyl ether(EE) layer of SMR, pulmonary colonization assay, changes of organ weight, WBC, number of platelet were evaluated experimentally and the results were obtained as follows: 1. The concentration inhibiting cell growth below 55% was 10~3g/ml of water layer and EE layer of SMR(ESR) against B16-Fo and 10-3g/ml of EE layer of SMR against A549. 2. Active compound isolated from Salviae miltiorrhizae Radix was identified as tanshion II A. 3. ED50 of tanshion II A was 0.8177 ㎍/㎖, 0.3431 ㎍/㎖, 1.3284 ㎍/㎖ and 0.8912 ㎍/㎖ against cancer cell lines as HCT15, XF498, SK-MEL-2, SK-OV-3, A549. 4. Tanshion II A induced DNA fragmentation of HL-60 from the concentration of 10 ㎍/㎖. 5. Solvent fractions of SMR showed the inhibitory effect on cell adhesion of A549 and B16-F0 most effectively specific to collagen Ⅳ. 6. Methanol and Ehtyl Ether extract of SMR inhibited platelet aggregation of ADP up to 35.6%, 46.1% at the concentration of 50 ㎍/㎖, 42.1%, 48.4% at the concentration of 100 ㎍/㎖ in the dose-dependent fashion. 7. T/c % ESR treated group was 143% based on the data that MST of ESR treated group was 22.6 days, while MST of control group was 15.7 days. 8. In pulmonary colonization assay ESR significantly inhibited pulmonary colonization of B16-Fo as compared with control group. 9. Gaining weight of lungs and spleen was significantly inhibited in ESR treated group, While the weight of kidney and liver was not signicantly changed as compared with control group. 10. ESR significantly decreased leukocytosis by B16-Fo to nomal range and significantly increased number of platelet as compared with control group. Above results indicate that Salviae miltiorrhizae Radix had antitumor effect and antitumor compound was indentified as tanshion ⅡA.
김성태,정성목 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2011 動物醫科學硏究誌 Vol.18 No.1
A six-month-old Jindo dog was admitted with history of postprandial regurgitation. The dog began regurgitating 3 months before. The dog was thin, underweighted and had a coarse hair coat. The cervical esophagus was palpable after meal. Contrast esophagram revealed distended esophagus cranial to the base of heart and contrast material accumulated in the esophagus. Tentative diagnosis was made on the basis of history, physical examination findings and a contrast esophagram. The dog diagnosed with Persistent right aortic arch by surgical exploration. Surgical ligation and division of the ligamentum arteriosum and balloon dilatation of stricture site were performed. After surgical correction, the follow up of prognosis after 2 month was excellent.