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조금남,김용찬,Jo Geum-Nam,Kim Yong-Chan 대한설비공학회 2006 설비저널 Vol.35 No.7
천연가스 부하관리 국내외 사례, 합리적인 평가 체계 방법을 제시하고자 한다.
대체냉매를 사용한 평활관 및 마이크로핀관 곡관부내 증발 열전달 특성
조금남,김병기,Jo, Geum-Nam,Kim, Byeong-Gi 대한기계학회 1997 大韓機械學會論文集B Vol.21 No.9
The present work experimentally investigated the effects of mass flux, heat flux, inlet quality on the heat transfer performance inside the U-bend of smooth and microfin tube using R-22 and R-407C refrigerants. The parameters were 200 and 400 kg/m$^{2}$ s for mass flux, 6 and 12 kw/m$^{2}$ for heat flux, 0.1 and 0.2 for inlet quality under the pressure of 0.65 MPa. The apparatus consisted of the test section of four straight sections and three U-bends, preheater, condenser, refrigerant pump, mass flow meter etc. The average heat transfer coefficient at the downstream straight section after U-bend was affected by U-bend due to the centrifugal force and mixing of two-phase flow in the U-bend. The average heat transfer coefficient at the U-bend was 4 ~ 33 % higher than that at the straight section. The average heat transfer coefficients were affected in the order of mass flux, heat flux and inlet quality. The average heat transfer coefficients in the microfin tube were lager by 19 ~ 49% and 33 ~ 69% than that in the smooth tube at the straight section and at the U-bend separately. The average heat transfer coefficients for R-407C were larger by 33 ~ 41% and 17 ~ 29% than that for R-22 in the smooth tube and the microfin tube separately.
조금남,최민구,Jo, Geum-Nam,Choe, Min-Gu 대한기계학회 1998 大韓機械學會論文集B Vol.22 No.6
The present study investigated the effects of the experimental parameters on the cooling characteristics of the multichip module cooled by the indirect liquid cooling method using water and paraffin slurry. The experimental parameters are mass fraction of 2.5 ~ 7.5% for paraffin slurry, heat flux of 10 ~ 40 W/cm$^{2}$ for the simulated VLSI chips and Reynolds numbers of 5,300 ~ 15,900. The apparatus consisted of test section, paraffin slurry maker, pump, constant temperature baths, flowmeter, etc. The test section made of in-line, four-row array of 12 heat sources for simulating 4 * 3 multichip module which was flush mounted on the top wall of a horizontal rectangular channel with the aspect ratio of 0.2. The inlet temperature was 20 deg. C for all experiments. The size of paraffin slurry was constant as 10 ~ 40 .mu.m befor and after the experiment. The chip surface temperatures for paraffin slurry with the mass fraction of 7.5% showed lower by 16 deg. C than those for water when the heat flux is 40 W/cm$^{2}$. The local heat transfer coefficients for the paraffin slurry with the mass fraction of 7.5% were larger by 17 ~ 25% than those for water at the first and the fourth row. The local heat transfer coefficients reached to a row-number-independent, thermally fully developed value approximately after the third row. The local Nusselt numbers at the fourth row for paraffin slurry with the mass fraction of 7.5% were larger by 23 ~ 29% than those for water.
허금정,김동조,박병욱,구창모,남창규,Heo Geum-Jeong,Kim Dong-Jo,Park Byung-Wook,Koo Chang-Mo,Nam Chang-Gyu 대한한방내과학회 2003 大韓韓方內科學會誌 Vol.24 No.4
Paraquat is a non-selective contact herbicide. When it is consumed, it may cause fatal disorders such as acute renal failure, hepatic dysfunction, and progressive respiratory failure. In spite of many efforts to cure patients poisoned with paraquat, the mortality rate still remain high. In this case, after using Gamdutanghaphwangryunhaedoktang-gamibang and Cheongsangboha-tang we got positive result in hepato-renal function, but progressive respiratory failure was unstoppable.
Carbamazepine기인성으로 추정되는 혈소판감소증 치험 1례
김동조,허금정,남창규,Kim Dong-Jo,Heo Geum-Jeong,Nam Chang-Gyu 대한한방내과학회 2003 大韓韓方內科學會誌 Vol.24 No.4
As the use of anticonvulsant increases in neurologic field, more studies are needed to reveal various harmful effects of this medication. Especially as for carbamazepine, thrombocytopenia may appear during administration of the medication, regardless of dosage. We, the authors, report that we diagnosed the patient as Bigiheo and Eumheohyeolheo, who was suffering from insomnia, diarrhea, papura, and serious thrombocytopenia. We presumed that the symptoms could be induced by carbamazepine, and used Samulgwibitanggamibang to treat her and obtained positive results.
Jeong Han Su,Kim Dong Jo,Heo Geum Jeong,Nam Chang Gyu,Go Seong Gyu The Physiological Society of Korean Medicine and T 2004 동의생리병리학회지 Vol.18 No.4
The root of Saussurea lappa includes sesquiterpene lactones such as costunolide and dehydrocostus lactone, and has been shown to be anti-tumorigenic with being used in traditional medicinal therapy in the Eastern Asia. However, the molecular basis of the effects of Saussurea lappa on fate of gastric carcinoma, which incur very frequently in the area, has not been well identified. In this study, the cytostatic effects of Saussurea lappa were examined using gastric AGS cancer cells. Cell viability was dramatically reduced by Saussurea lappa, in a dose-dependent manner. As time passed after its treatment, apoptotic population was increased and clearly showed G2-arrest. Being consistent, its treatment resulted in maintaining of G1 and S-phase cyclins D1, E, and A even until a significant apoptotic population was observed, for example, at 24h after treatment. However, G2/M phase cyclin B1 was reduced even at 12 h after treatment. In addition, its treatment increased expression of p53, p21/sup Wafl / cyclin dependent kinase inhibitor (CKI), and Bax, resulted in cleavages of procaspase 3 and poly ADP-ribose polymerase(PARP), indicating that such G2 arrest- and apoptosis-related molecules are involved. Therefore, these suggest that extracts of Saussurea lappa root may be a safer and effective reagent to deal with gastric cancers either by traditional herbal therapy or combinational therapy with conventional chemotherapy.