식도를 포함한 전위장관을 침범한 전이성 악성 흑색종 1예

최정영,김준기,신성하,고영춘,조상욱,서강석,강명원,임연근,여향순,김경수 全南大醫大 2001 전남의대학술지 Vol.37 No.1

B-ISDN 기반의 멀티미디어 통신을 위한 통합형 IP-PBX 시스템 구현

최준원,최재원 경성대학교 공학기술연구소 2003 공학기술연구지 Vol.S2 No.2

최근 컴퓨터와 통신 기술의 발전으로 인해, 멀티미디어를 이용한 여러 가지 응용이 출현하고 있다. 그 중에 인터넷의 발전과 함께 많은 성장을 하고 있는 인터넷폰이 핵심이 되고 있다. 시대의 요구에 따라 단말시스템이 유선으로 무선으로 바뀌고 이으며, 각 단일망들의 통합화가 요구되고 있다. 현 기업에서 통신 인프라를 구축하기위해 사내교환망과 LAN 통신망을 가지며 투자되는 비용을 줄이고자 한다. The internet phone has been divided into types of PC-to-PC, PC-to-Phone, and Phone-to-Phone so far since its appearance first in 1995. However, compared to the 1990s, a kind of a terminal for communication is now being increased, and particularly, the traffic is being changed from wire to wireless after the appearance of a cellular phone. Accordingly, a type of an internet phone also needs to be changed or integrated. For the purpose of economy, stability and efficiency, it will need to integrate several single networks into one.

血栓症과 打撲性 充血 및 高脂血症에 順氣導痰湯 및 化瘀湯 미치는 影響

朴元煥,崔達永,文濬典 동국대학교 한의학연구소 1993 東國韓醫學硏究所論文集 Vol.2 No.1

To see both Shunqidaotantang(dissipate phlegm and promote vital energy circulation) and Huayutang(blood circulation and disperse blood stasis) influencing on thrombosis, contusion-hyperemia, and hyperlipidemia, at first we measured the density of FDP, the quantity of fibrinogen, prothrombin time, and the number of platelet of rat taken thrombosis by endotoxin. Secondly we measured the increase-rate of "paw swelling", the number of platelet, the quantity of fibrinogen, and prothrombin time of rat taken contusion-hyperemia. And then we measured the quantity of total cholesterol in serum and of H.D.L-cholesterol and of triglyceride and of phospholipid arid of P-lipoprotein, its weight, and the variation of the quantity of electrolyte of rat taken hyperlipidemia by the oral-injection of choleserol. As a result, we can conclude as follows : 1. Out of the test of thrombosis, we can recognize not only the noticeable increae of the number of platelet and the quantity of fibrinogen, but also the noticeable decrease of prothrornbin tirne and the density of FDP in case of Shunqidaotantang-injected rat and Huayutang-injected rat. 2. Out of the test of contusion-hyperemia, we can recognize not only the noticeable increase of the number of platelet and the quantity of fibrinogen, but also the noticeable decrease of prothrombin time and "increase-rate of paw swelling" in case of Shunqidaotantang-injected rat and Huayutang-injected rat. 3. Out of the test of hyperlipidemia, at first we can recognize that test rat s weight increased as close as that of normal rat. And we can recognize the noticeable decrease of the triglyceride and phospholipid and P-lipoprotein. Also, in case of the variation of electrolyte we can recognize the decrease of calcium and potassium in Shunqidaotantang-injected rat, and of sodium and magnesium in Huayutang-injected rat. Thus, as the above-mentioned, in covering thrombosis, contusion-hypermia, and hyperlipidemia, the effect of Shunqidaotantang and Huayutang can be recognized. Granting that Huayutang reveals its effectiveness in thrombosis and contusion-hyperemia, and Shunqidaotantang in hyperlipidemia, it can be inferred that contusion-hyperemia is like model of blood stasis form as thrombosis and hyperlipidemia "phlegm-retention diseases form", and both phlegm-retention and blood stasis have correlation each other.

血栓症과 打撲性 充血 및 高脂血症에 順氣導痰湯 및 化瘀湯이 미치는 影響

박원환,최달영,文濬典 東國大學校韓醫學硏究所 1993 東國韓醫學硏究所論文集 Vol.2 No.1

To see both Shunqidaotantang(dissipate phlegm and promote vital energy circulation) and Huayutang(blood circulation and disperse blood stasis) influencing on thrombosis, contusion-hyperemia, and hyperlipidemia, at first we measured the density of FDP, the quantity of fibrino-gen, prothrombin time, and the number of platelet of rat taken thrombosis by endotoxin. Secondly we measured the increase-rate of "paw swelling", the number of platelet, the quantity of fibrino-gen, and pothrombin time of rat taken contusion-hypermia. And then we measured the quantity of total cholesterol in serum and of H.D.L-cholesterol and of triglyceride and of phospholipid and of β-lipoprotein, its weight, and the variation of the quantity of electrolyte of rat taken hyperlipidemia by the oral-injection of cholesterol. As a result, we can conclude as follows: 1. Out of the test of thrombosis, we can recognize not only the noticeable increae of the number of platelet and the quantity of fibrinogen, but also the noticeable decrease of prothrombin time and the density FDP in case of Shunqid?otant?ng-injected rat and Huay?t?ng-injected rat. 2. Out of the test of contusion-hypermia, we can recognize not only the noticeable increase of the number of platelet and the quantity of fibrinogen, but also the noticeable decrease of prothrombin time and "increase-rate of paw swelling" in case of Shunqid?otant?ng-injected rat and Huay?t?ng-injected rat. 3. Out of the test of hyperlipidemia, at first we can recognize that test rat's weight increased as close as that of normal rat. And we can recognize the noticeable decrease of the triglyceride and phospholipid and β-lipoprotein. " Also, in case of the variation of electrolyte we can recognize the decrease of calcium and potassium in Shunqidaotantang-injected rat, and of sodium and magnesium in Huayutang-injected rat. Thus, as the above-mentioned, in covering thrombosis, contusion-hypermia, and hyperlipidemia, the effect of Shunqiduotantang and Huay?t?ng can be recognized. Granting that Huayutang reveals its effectiveness in thrombosis and contusion-hyperemia, and Shunqid?otant?ng in hyperlipidemia, it can be inferred that contusion-hyperemia is like "model of blood stasis form" as thrombosis and hyperlipidemia "phlegm-retention diseases form ", and both phlegm-retention and blood stasis have correlation each other.

Growth and Yield Variation of Clay-coated Rice Seeds in Direct Seeding Culture on Dry Paddy

Weon-Young Choi,Hong-Kyu Park,Bon-IL Ku,Young-Jun Mo,Min-Gyu Choi,Sang-Su Kim,Chung-Kon Kim 韓國作物學會 2008 Korean journal of crop science Vol.53 No.3

Clay-coated rice seeds (clay-coated seeds A and B) were directly sown on dry paddy and their growth and yield were compared with the normal drill-sown seeds on dry flat paddy. In clay-coated seeds, germination was 1 day earlier and the emergence rate was higher up to 5% than that of normal drill-sown seeds. But the apparent number of seedling stand per m2 was lower than that of normal drill-sown seeds, which is due to the smaller amount of seeding in clay-coated seeds. At the early growth stage, the plant height of clay-coated seeds A was taller than that of drill-sown seeds, while the plant height of clay-coated seeds B was 0.7 cm shorter than that of drill-sown seeds. At the late growth stage, however, the difference was insignificant in both cases. The maximum tillering stage was 10 days earlier in drill-sown seeds. Lodging index was the lowest in clay-coated seeds B and there was no difference between clay-coated seeds A and drill-sown seeds. The ratio of stem base weight, culm diameter and culm wall thickness were higher in clay-coated seeds, while the lower internodes (4th, 5th and 6th) length was shorter in claycoated seeds than in drill-sown seeds. In clay-coated seeds, the number of panicle per m2 was smaller, while the number of spikelet per panicle was a little larger than in drill-sown seeds. The rate of ripened grain and brown rice 1,000 grain weight were lower in the clay-coated seeds, thus the yield was 98~99% level of drill-sown seeds. Considering that the amount of seeding in clay-coated seeds was two-thirds of that in drill-sown seeds, it is expected that clay coating method could become an additional technique for direct seeding cultivation.

Growth and Yield Variation of Clay-coated Rice Seeds in Direct Seeding Culture on Dry Paddy

Choi, Weon-Young,Park, Hong-Kyu,Ku, Bon-IL,Mo, Young-Jun,Choi, Min-Gyu,Kim, Sang-Su,Kim, Chung-Kon The Korean Society of Crop Science 2008 Korean journal of crop science Vol.53 No.3

Clay-coated rice seeds (clay-coated seeds A and B) were directly sown on dry paddy and their growth and yield were compared with the normal drill-sown seeds on dry flat paddy. In clay-coated seeds, germination was 1 day earlier and the emergence rate was higher up to 5% than that of normal drill-sown seeds. But the apparent number of seedling stand per $m^2$ was lower than that of normal drill-sown seeds, which is due to the smaller amount of seeding in clay-coated seeds. At the early growth stage, the plant height of clay-coated seeds A was taller than that of drill-sown seeds, while the plant height of clay-coated seeds B was 0.7 cm shorter than that of drill-sown seeds. At the late growth stage, however, the difference was insignificant in both cases. The maximum tillering stage was 10 days earlier in drill-sown seeds. Lodging index was the lowest in clay-coated seeds B and there was no difference between clay-coated seeds A and drill-sown seeds. The ratio of stem base weight, culm diameter and culm wall thickness were higher in clay-coated seeds, while the lower internodes (4th, 5th and 6th) length was shorter in claycoated seeds than in drill-sown seeds. In clay-coated seeds, the number of panicle per $m^2$ was smaller, while the number of spikelet per panicle was a little larger than in drill-sown seeds. The rate of ripened grain and brown rice 1,000 grain weight were lower in the clay-coated seeds, thus the yield was $98{\sim}99%$ level of drill-sown seeds. Considering that the amount of seeding in clay-coated seeds was two-thirds of that in drill-sown seeds, it is expected that clay coating method could become an additional technique for direct seeding cultivation.

Evidence for the Association of Ce11u1ar Iron Loss in Nitric Oxide-induced Apoptosis of HL-60 Cells: Involvement of p38 Kinase, c-Jun N-terminal Kinase, Cytochrome C Release, and Caspases Pathways

Choi, Suck-Chei,Kim, Beom-Su,Yoon, Kwon-Ha,Song, Moon-Young,Oh, Hyun-Mee,Han, Weon-Cheol,Kim, Tae-Hyeon,Kim, Eun-Cheol,Jun, Chang Duk The Korean Society for Integrative Biology 2002 Korean journal of biological sciences Vol.6 No.2

Nitric oxide has high affinity for iron, and thus it can cause intracellular iron loss. We tested the idea that intracellular iron can be the primary target of NO toxicity by comparing the signaling mechanisms involved in cell death caused by iron depletion and that caused by NO. Treatment of HL-60 cells with a NO donor, S-nitroso-N-acetyl-DL-penicillamine (SNAP), decreased the intracellular iron level rapidly as that observed with the iron chelator deferoxamine (DFO). Iron chelators such as DFO and mimosine could induce death of human leukemic HL-60 cells by a mechanism requiring activation of p38 kinase, c-Jun N-terminal kinase, caspase-3 and caspase-8. DFO and SNAP also caused release of cytochrome c from mitochondria. Inhibition of p38 kinase by a selective inhibitor, SB203580, abolished the NO and DFO-induced cell death, release of cytochrome c, and activation of caspase-3 and caspase-8, thus indicating that p38 kinase lies upstream in the cell death processes. In a parallel situation, the cells that are sensitive to NO showed similar sensitivity to DFO. Moreover, simultaneous addition of ferric citrate, an iron-containing compound, inhibited the SNAP and DFO-induced activation of caspases and also blocked the NO-mediated cell cycle arrest at $G_1$ phase. Collectively, our data implicate that the NO-induced cell death of tumor cells including HL-60 cells is mediated by depletion of iron and further suggest that activation of p38 kinase lies upstream of cytochrome c release and caspase activation involved in this apoptotic process.

Changes of Rice Yield and Quality of Unkwangbyeo” as Affected by Transplanting Date in Honam Plain Area

Weon-Young Choi,Bon-Il Ku,Hong-Kyu Park,Min-Gyu Choi,Young-Jun Mo,Young-Doo Kim,Jae-Kwon Ko 한국작물학회 2008 한국작물학회 학술발표대회 논문집 Vol.2008 No.10

This study was conducted to examine the appropriate transplanting date of the top-quality rice variety, Unkwangbyeo, in Honam plain area. The results obtained from 2006 to 2007 in Iksan are as follows. The number of panicle per m2 increased as the transplanting date became late and the number of grain per m2 was the highest in the plot of which the transplanting date was June 15. Percent ripened grain increased as the transplanting date became late until June 15, however, it decreased in the plot of which the transplanting date was June 30. Imperfect grain increased as the transplanting date became early due to the occurrence of immature rice and cracked rice. Protein content increased as the transplanting date became late, but didn't show statistical significance. Toyo texture increased as the transplanting date became late. Rice yield and the head rice yield increased as the transplanting date became late until June 15, however, they decreased in the plot of which the transplanting date was June 30. Even though the rice price was high in early transplanting cultivation, gross profit was the highest in June 15 transplanting since the rice yield increased as the transplanting date became late until June 15. Considering the yield, rice quality and profit, the most appropriate transplanting date of Unkwangbyeo in Honam plain area is the middle of June.

Characterizing Bacterial Communities of Paddy Soils in Korea

Hang-Yeon Weon(원항연),Jae-Ho Joa(좌재호),Won-Il Choi(최원일),Byung-Koo Ahn(안병구),Young-Han Lee(이영한),An-Sung Roh(노안성),Hee-Kwon Kim(김희권),Seung-Chul Choi(최승출),Moon-Tae Choi(최문태),Jun-Hong Park(박준홍),Jae-Hyung Ahn(안 한국토양비료학회 2012 한국토양비료학회 학술발표회 초록집 Vol.2012 No.6

경항문 내시경 미세수술의 임상적 고찰

정준철,최성일,이두석,장원영,노상익,오소향,이우용,전호경 대한대장항문학회 2002 Annals of Coloproctolgy Vol.18 No.2