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CFD and Experimental Study of Gas Flow inside the Wounding Steel Pipe Fitted in Reciprocating Hydrogen Compressor
정한식, 라흐만, 이경환, 우주식, 김보한, 정효민, Chung. H.S., Rahman. M. Sq., Lee. G.H., Woo. J.S., Kim. B.H., Jeong. H.M. 한국동력기계공학회 한국동력기계공학회지 8 Pages
한국동력기계공학회 한국동력기계공학회지 2010, Vol.14 No.3 25-32 (8 pages)
전 세계적으로 급속도로 인기가 더해가고 있는 수소에너지는 높은 전환 효율성, 재생성, 친환경적인 특징을 가지며 미래의 주 에너지가 될 것이다. 왕복동식 압축기를 통과한 후의 수소 가스의 압력은 높은 맥동압을 가진다. 스너버는 압축기의 한 구성품으로 맥동압을 낮추고 수소가스의 불순물을 제거하기 위해 사용된다. 이 연구에서의 실험은 스너버 시스템에 사용된 강관의 맥동에 관해 조사하기 위해서 수행되었다. 맥동압은 12 Hz ~ 60 Hz의 모터속도에서 RMS값을 기준으로 0.1625% ~ 0.5305% 그리고 평균압력을 기준으로 0.1621%... -
Patent Trends of Carbonaceous Materials for Hydrogen Storage (III): Major Applicants & Technology Flow-chart
Soo-Jin Park, Byung-Joo Kim, Young-Seak Lee 한국탄소학회 Carbon Letters 12 Pages
한국탄소학회 Carbon Letters 2008, Vol.9 No.1 6 35-46 (12 pages)
수소에너지의 제조, 저장, 이용은 친환경적 에너지원의 대표 주자로서 Kyoto Protocol 발효를 시작으로 전세계적인 Zero Emission 사회 구축의 핵심요소로 부각되었다. 더불어 최근 국제유가가 급등하면서 대체에너지원의 유망한 분야로 수소에너지 개발에 대한 관심이 더욱 집중되었으며, 우리나라의 경우 대부분의 에너지원을 수입에 의존하기 때문에 수소에너지가 가지는 의미는 더욱 크다고 할 수 있다. 수소에너지는 일반적으로 물의 전기분해를 통해 얻어지는 청정에너지이며, 그 원료가 물이기 때문에 무한 에너지로써 에너지... -
Protective effect of butylated hydroxylanisole against hydrogen peroxide-induced apoptosis in primary cultured mouse hepatocytes
Geun Hye Hwang, Yu Jin Jeon, Ho Jae Han, Soo Hyun Park, Kyoung Min Baek, Woochul Chang, Joong Sun Kim, Lark Kyun Kim, You-Mie Le 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2015, 제 16권 제 1호 3 17-23 (7 pages)
of a mixture of two isomeric organic compounds: 2-tert-butyl-4-hydroxyanisole and 3-tert-butyl-4-hydroxyanisole. We examined the effect of BHA against hydrogen peroxide (H2O2)-induced apoptosis in primary cultured mouse hepatocytes. Cell viability was significantly decreased by H2O2 in a dose-dependent manner. Additionally, H2O2 treatment increased Bax, decreased Bcl-2, and promoted PARP-1 cleavage in a dose-dependent manner. Pretreatment... -
Hydrogen peroxide attenuates refilling of intracellular calcium store in mouse pancreatic acinar cells
MiNaYoon, DongKwanKim, SeHoonKim, HyungSeoPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2017, Vol.21 No.2 11 233-239 (7 pages)
effect of hydrogen peroxide (H2O2) on intracellular Ca2+ accumulation in mouse pancreatic acinar cells. Perfusion of H2O2 at 300 μM resulted in additional elevation of intracellular Ca2+ levels and termination of oscillatory Ca2+ signals induced by carbamylcholine (CCh) in the presence of normal extracellular Ca2+. Antioxidants, catalase or DTT, completely prevented H2O2-induced additional Ca2+ increase and termination of Ca2+ oscillation. In Ca2+-free medium, H2O2 still enhanced CCh-induced... -
Effects of hydrogen peroxide on voltage-dependent K+ currents in human cardiac fibroblasts through protein kinase pathways
HyemiBae, DongheeLee, Young-WonKim, JeongyoonChoi, HongJunLee, Sang-WookKim, TaehoKim, Yun-HeeNoh, Jae-HongKo, HyoweonBang, InjaLim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2016, Vol.20 No.3 11 315-324 (10 pages)
channels (VDKCs) that can induce apoptosis. Hydrogen peroxide (H2O2) modulates VDKCs and induces oxidative stress, which is the main contributor to cardiac injury and cardiac remodeling. We investigated whether H2O2 could modulate VDKCs in HCFs and induce cell injury through this process. In whole-cell mode patch-clamp recordings, application of H2O2 stimulated Ca2+-activated K+ (KCa) currents but not delayed rectifier K+ or transient outward K+ currents, all of which are VDKCs. H2O2-stimulated... -
Effects on G2/M Phase Cell Cycle Distribution and Aneuploidy Formation of Exposure to a 60 Hz Electromagnetic Field in Combination with Ionizing Radiation or Hydrogen Peroxide in L132 Nontumorigenic Human Lung Epithelial Cells
HeeJin, HyeEunYoon, Jae-SeonLee, Jae-KyungKim, SungHoMyung, Yun-SilLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.2 6 119-124 (6 pages)
The aim of the present study was to assess whether exposure to the combination of an extremely low frequency magnetic field (ELF-MF; 60 Hz, 1 mT or 2 mT) with a stress factor, such as ionizing radiation (IR) or H2O2, results in genomic instability in non-tumorigenic human lung epithelial L132 cells. To this end, the percentages of G2/M-arrested cells and aneuploid cells were examined. Exposure to 0.5 Gy IR or 0.05 mM H2O2 for 9 h resulted in the highest levels of aneuploidy; however, no cells... -
Contradictory Effects of Superoxide and Hydrogen Peroxide on KCa3.1 in Human Endothelial Cells
ShinkyuChoi, Hye-YoungNa, JiAeeKim, Sung-EunCho, SukHyoSuh 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2013, Vol.17 No.3 1 181-187 (7 pages)
oxygen species (ROS) are generated in various cells, including vascular smooth muscle and endothelial cells, and regulate ion channel functions. KCa3.1 plays an important role in endothelial functions. However, the effects of superoxide and hydrogen peroxide radicals on the expression of this ion channel in the endothelium remain unclear. In this study, we examined the effects of ROS donors on KCa3.1 expression and the K＋ current in primary cultured human umbilical vein endothelial cells... -
GS28 Protects Neuronal Cell Death Induced by Hydrogen Peroxide under Glutathione-Depleted Condition
HwaOkLee, YuJeongByun, Kyung-OkCho, SeongYunKim, Seong-BeomLee, Ho-ShikKim, Oh-JooKwon, Seong-WhanJeong 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.3 5 149-156 (8 pages)
by hydrogen peroxide (H2O2). GS28 siRNA-transfected cells treated with H2O2 showed a significant increase in cytotoxicity under glutathione (GSH)-depleted conditions after pretreatment with buthionine sulfoximine, which corresponded to an increase of intracellular reactive oxygen species (ROS) in the cells. Pretreatment of GS28 siRNA-transfected cells with p38 chemical inhibitor significantly inhibited cytotoxicity; we also observed that p38 was activated in the cells by immunoblot analysis. We... -
Promoting Effect of Hydrogen Peroxide on 1-Methyl-4-phenylpyridinium-induced Mitochondrial Dysfunction and Cell Death in PC12 Cells
DongHeeLee, ChungSooLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2006, Vol.10 No.1 9 51-57 (7 pages)
The promoting effect of hydrogen peroxide (H2O2) against the cytotoxicity of 1-methyl-4-phenylpyridinium (MPP) in differentiated PC12 cells was assessed by measuring the effect on the mitochondrial membrane permeability. Treatment of PC12 cells with MPP resulted in the nuclear damage, decrease in the mitochondrial transmembrane potential, cytosolic accumulation of cytochrome c, activation of caspase-3, increase in the formation of reactive oxygen species (ROS) and depletion of GSH.... -
Effect of UV Irradiation and Rebamipide on the Blood Flow and Viability of Rabbit Skin Flap
Eung-JooSuh, Hyoung-ChulChoi, Uy-DongSohn, Jeoung-HeeHa, Kwang-YounLee, Won-JoonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1997, Vol.1 No.5 14 581-589 (9 pages)
the cutaneous blood flow and tissue survival on rabbit skin flap. In a random bipedicle flap, Laser Doppler Flowmetry (LDF) was employed to measure the blood flow of flap (BFF). Wound Margin Strength (WMS) measured by force transducer and Light microscophy were used for evaluation of tissue viability. Single exposure to UVL increased the BFF gradually for more than 15 hours, and decreased the vasoconstrictor effect of intravenous phenylephrine. The UVL-induced increase in BFF regressed after 18... -
Effect of Nitrogen-Load Condition on Hydrogen Production and Bacterial Community in Continuous Anaerobic Hydrogen Fermentation Process
Yasunori Kawagoshi, Masaharu Nakao, Naoe Hino, Tomonori Iwasa, K 한국습지학회 한국습지학회지 9 Pages
한국습지학회 한국습지학회지 2007, Vol.9 No.1 13 123-131 (9 pages)
Effect of nitrogen-load condition on hydrogen (H2) production and bacterial community in a continuous anaerobic hydrogen fermentation were investigated. The slight H2 production on extremely low nitrogen-load condition (C/N ratio: 180) at the start-up period. The highest H2 production was obtained when the C/N ratio was 36, the H2 production yield (mol-H2 / mol-glucose) reached to 1.7, and it was indicated that Clostridium pasteurianum mainly contributed to the H2 production. The H2 production... -
Development of Porous Sorbents for Removal of Hydrogen Sulfide from Hot Coal Gases III. Study on Ferrite-type adsorbent for the Removal of Hydrogen Sulfide
Kim. Jong-Saeng, Lee. Young-Soo, Lee. Bok-Jae, Yoo. Kyong-Ok 한국환경보건학회 한국환경위생학회지 11 Pages
한국환경보건학회 한국환경위생학회지 1991, Vol.17 No.1 39-49 (11 pages)
반응(sulfidation)을 thermogravimetric analyzer (Shimadzu DT-30)로 수행하였으며, 고정층세서 zinc ferrite 흡착제의 흡착능을 측정하였다. 반응온도는723$^{circ}$K~973$^{circ}$K범위이며, 반응기체는 황화수소(2vol.%)와 질소와 혼합기체로서 total gas flow rate는 200ml/min으로 고정시켰다. Grain Model을 사용하여 실험데이터를 분석한 결과 전화율이 낮을 때 zinc ferrite와 황화수소 반응의 율속단계는 화학반응이었고 황화수소 농도에 대해 1차 반응이었다. 실험한 흡착제 중 10 atomic %의 $Fe_{2}O_{3}$를 첨가하여 제조한... -
Effect of Initial Glucose Concentrations on Carbon and Energy Balances in Hydrogen-Producing Clostridium tyrobutyricum JM1
Jo. Ji-Hye, Lee. Dae-Sung, Kim. Jun-Hoon, Park. Jong-Moon 한국미생물생명공학회 Journal of microbiology and biotechnology 8 Pages
한국미생물생명공학회 Journal of microbiology and biotechnology 2009, Vol.19 No.3 291-298 (8 pages)
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The effect of coenzyme Q10 on endothelial function in a young population
Jerrold Petrofsky, M. Laymona, H. Lee, E. Hernandez, D. Dequine, L. Thorsen, R. Lovell, J. Andrade 물리치료재활과학회 Physical Therapy Rehabilitation Science 7 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2012, 제 1권 제 1호 2 6-12 (7 pages)
weeks would impact resting blood flow in the forearm skin and the blood flow response to 4 minutes of vascular occlusion and the response to local heat (42oC) for 6 minutes. Results: The results showed that, for this population, there was no difference in the response to heat. However, the response to occlusion was improved after administration of CoQ10. Conclusions: It would appear that in a young population CoQ10 has no effect on the nitric oxide vasodilator pathway in skin but does influence... -
Animal models of spinal cord injury in rats: A comparative study
Tae-kyun Shin, Hyo-jin Bang, Mee-jung Ahn, Ki Bum Sim, Jeong-tae Kim 대한수의학회 대한수의학회 학술대회발표집 2 Pages
대한수의학회 대한수의학회 학술대회발표집 춘계학술심포지움 81 127-128 (2 pages)
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Immunogenicityand protective efficacy of recombinant Stx2e toxoids in mice
Dong-ju Shin, Nak-hyung Lee 대한수의학회 대한수의학회 학술대회발표집 2 Pages
대한수의학회 대한수의학회 학술대회발표집 추계학술심포지움 269 355-356 (2 pages)
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Hypoxia Mitigates Mitochondrial Damage and Oxidative Stress Induced by Cisplatin in Human Malignant Mesothelioma Cells
Myung Chul Kim, Sung hyun Hwang, Na Yon Kim, Hong seok Lee, Su-min Ji, Ye-seul Yang, Yong-baek Kim 대한수의학회 대한수의학회 학술대회발표집 2 Pages
대한수의학회 대한수의학회 학술대회발표집 추계학술심포지움 267 354-355 (2 pages)
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Piglet colibacillosis diagnosis based on multiplex polymerase chain reaction and immunohistochemistry of paraffin-embedded tissues
C?ntia De Lorenzo, Caroline P. de Andrade, Ver?nica S. L. Machado, Matheus V. Bianchi, Veronica M. Rolim, Raquel A. S. Cruz, Dav 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 1호 5 27-33 (7 pages)
Enterotoxigenic Escherichia coli (ETEC) causes diarrhea in pigs, referred to as colibacillosis. The aim of this study was to optimize multiplex polymerase chain reaction (PCR) and immunohistochemistry (IHC) analyses of paraffin-embedded material to detect pathogenic E. coli strains causing colibacillosis in pigs. Multiplex PCR was optimized for fimbriae (F18, F4, F6, F5, and F41) and toxins (types A and B heat-stable toxins [STaP and STb], heat-labile toxin [LT], and type 2 Shiga toxin [STx2e]),...
