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Effect of Stimulus Waveform of Biphasic Current Pulse on Retinal Ganglion Cell Responses in Retinal Degeneration (rd1) mice
KunNoAhn, JeongYeolAhn, Jae-hyungKim, KyoungrokCho, Kyo-inKoo, SolomonS.Senok, YongSookGoo 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.2 12 167-175 (9 pages)
A retinal prosthesis is being developed for the restoration of vision in patients with retinitis pigmentosa (RP) and age-related macular degeneration (AMD). Determining optimal electrical stimulation parameters for the prosthesis is one of the most important elements for the development of a viable retinal prosthesis. Here, we investigated the effects of different charge-balanced biphasic pulses with regard to their effectiveness in evoking retinal ganglion cell (RGC) responses. Retinal... -
Effect of Vitamin E Supplementation on Intestinal Barrier Function in Rats Exposed to High Altitude Hypoxia Environment
ChunlanXu, RuiSun, XiangjinQiao, CuicuiXu, XiaoyaShang, WeiningNiu, YuChao 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2014, Vol.18 No.4 5 313-320 (8 pages)
The study was conducted to investigate the role of vitamin E in the high altitude hypoxia-induced damage to the intestinal barrier in rats. Sprague-Dawley rats were divided into control (Control), high altitude hypoxia (HH), and high altitude hypoxia＋vitamin E (250 mg/kg BW*d) (HV) groups. After the third day, the HH and HV groups were placed in a hypobaric chamber at a stimulated elevation of 7000 m for 5 days. The rats in the HV group were given vitamin E by gavage daily for 8 days. The other... -
Effect of Lidocaine·HCl on Microviscosity of Phosphatidylcholine Model Membrane
In-KyoChung, Inn-SeKim, Chang-HwaChoi, Goon-JaeCho, Jin-BomKim, Woo-SungSon6, Hye-OckJang7, IlYun8 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2000, Vol.4 No.3 9 243-251 (9 pages)
a simple linear function of T/η. Based on this calibration curve, the microviscosity values of the direct probe environment in SPMVPC model membranes ranged from 234.97⁑48.85 cP at 4oC to 19.21⁑1.11 cP at 45oC. At 37oC, a value of 27.25⁑0.44 cP was obtained. The lidocaine·HCl decreased the microviscosity of SPMVPC model membranes in a concentration-dependent manner, with a significant decrease in microviscosity value by injecting the local anesthetic even at the concentration... -
A Study on the Na+/Ca2+ Exchange Mechanism in the Smooth Muscle of Guinea-pig Stomach
Kim, Eui-Yong, Han, Jin, Kim, Ki-Whan 대한생리학회 대한생리학회지 14 Pages
대한생리학회 대한생리학회지 1992, 제 26권 제 1호 6 55-68 (14 pages)
The effects of changes in extracellular Na+ and Ca+ concentration on the membrane potential and contractility were studied in the antral circular muscle of guinea pig stomach in order to elucidate the existence and the nature of Na+/Ca2+ exchange mechanism. All experiments were performed in tris buffered Tyrode solution which was aerated with 100% O2 and kept at 35℃. The treatment of 10-5 ouabain was performed to induce intracellular Na+ loading prior to the start of experiment. The results... -
Identification, Characterization, and Efficacy Evaluation of Bacillus velezensis for Shot-Hole Disease Biocontrol in Flowering Cherry
Viet-Cuong Han, Nan Hee Yu, Hyeokjun Yoon, Neung-Ho Ahn, Youn Kyoung Son, Byoung-Hee Lee, Jin-Cheol Kim 한국식물병리학회 The Plant Pathology Journal 16 Pages
한국식물병리학회 The Plant Pathology Journal 2022, 38권 2호 5 115-130 (16 pages)
Though information exists regarding the pathogenesis of the shot-hole disease (SH) in flowering cherry (FC), there has been a lack of research focusing on SH management. Therefore, here, we investigated the inhibitory activities of antagonistic bacteria against SH pathogens both in vitro and in vivo as well as their biochemical characteristics and bioactive compounds. Two biosurfactant- producing bacterial antagonists, identified as Bacillus velezensis strains JCK-1618 and JCK-1696, exhibited... -
Isolation and Identification of Endophytic Bacteria with Plant Growth Promoting Activity and Biocontrol Potential from Wild Pistachio Trees
한국식물병리학회 The Plant Pathology Journal 10 Pages
한국식물병리학회 The Plant Pathology Journal 2018, 34권 3호 7 208-217 (10 pages)
In this study, samples were collected from the leaves and stems of healthy wild Pistachio trees (Pistacia atlantica L.) from various locations of Baneh and Marivan regions, Iran. In total, 61 endophytic bacteria were isolated and grouped according to phenotypic properties. Ten selected isolates from each group were further identified by partial sequencing of the 16S rRNA gene. Based on the results, isolates were identified as bacteria belonging to Pseudomonas, Stenotrophomonas, Bacillus, Pantoea... -
Comparative numerical evaluation for the low velocity impact behavior of T300 and T800 composite system
Jae-Seok Choi, Heung Soap Choi, Soo-Jin Park, Myung Kyun Park 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2017, Vol.22 9 89-95 (7 pages)
Carbon fiber reinforced polymer (CFRP) composites have been used for many decades for extreme light weight design purposes in various areas, such as the aerospace industry, automobiles, sports goods and etc. because they provide the advantages of high specific strength and high rigidity [1]. In particular, the fuselage and wings of various aircraft, as well as the load bearing structures and components of mechanical and civil engineering systems are currently being manufactured with CFRP.... -
Nanoporous graphene oxide membrane and its application in molecular sieving
S. Mahmood Fatemi, Masoud Arabieh, Hamid Sepehrian 한국탄소학회 Carbon Letters 9 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.3 4 183-191 (9 pages)
Gas transport through graphene-derived membranes has gained much interest recently due to its promising potential in filtration and separation applications. In this work, we explore Kr-85 gas radionuclide sequestration from natural air in nanoporous graphene oxide membranes in which different sizes and geometries of pores were modeled on the graphene oxide sheet. This was done using atomistic simulations considering mean-squared displacement, diffusion coefficient, number of crossed species of... -
The effects of stacking sequence on the penetration-resistant behaviors of T800 carbon fiber composite plates under low-velocity impact loading
Furqan Ahmad, Jung-Wuk Hong, Heung Soap Choi, Soo-Jin Park, Myung Kyun Park 한국탄소학회 Carbon Letters 9 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.2 6 107-115 (9 pages)
Impact damages induced by a low-velocity impact load on carbon fiber reinforced polymer (CFRP) composite plates fabricated with various stacking sequences were studied experimentally. The impact responses of the CFRP composite plates were significantly affected by the laminate stacking sequences. Three types of specimens, specifically quasi-isotropic, unidirectional, and cross-ply, were tested by a constant impact carrying the same impact energy level. An impact load of 3.44 kg, corresponding to... -
Preparation and characterization of microporous NaOH activated carbons from hydrofluoric acid leached rice husk and its application for lead(II) adsorption
A. F. Hassan, A. M. Youssef 한국탄소학회 Carbon Letters 10 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.1 8 57-66 (10 pages)
Three activated carbons (ACs) were prepared using NaOH (N) as an activating agent. Hydrofluoric acid pre-leached rice husk was used as a precursor. After leaching, the precursor was washed with distilled water, dried, crushed, and then sieved; a size fraction of 0.3-0.5 mm was selected for carbonization in the absence of air at 600°C. The carbonization product (LC) was mixed with NaOH at ratios of 1:2, 1:3, and 1:4 (wt of LC: wt of NaOH) and the produced ACs after activation at 800°C were... -
Removal of deltamethrin insecticide over highly porous
A. F. Hassan, A.M. Youssef, P. Priecel 한국탄소학회 Carbon Letters 9 Pages
한국탄소학회 Carbon Letters 2013, Vol.14 No.4 6 234-242 (9 pages)
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방사형 강우 유출의 초기세척 모의 및 소규모 불투수 배수구역에서의 초기우수 처리효과 상승을 위한 집수시설 배치 방안
강주현, 이동훈, 김진휘 한국습지학회 한국습지학회지 8 Pages
한국습지학회 한국습지학회지 2017, Vol.19 No.4 1 375-382 (8 pages)
본 연구에서는 방사형 흐름을 가지는 지표 유출수에 대한 오염물질의 초기세척현상 모의를 통하여 주차장과 같은 소규 모 불투수 배수구역에서 발생하는 수렴형 강우유출수의 동적 유출특성에 대한 일반적 특성을 고찰하고, 이를 토대로 비점오염저감시설의 초기우수처리 효과를 극대화 시킬 수 있는 집수시설 배치 방안을 제시하고자 하였다. 이를 위하여 1차원 확산파 방정식(diffusion wave equation)과 오염물질 운송방정식을 이용하여 이상적인 방사형 불투수 배수구역 에 대한 초기세척현상을 모의 하고, 이 결과를 이용하여... -
레인가든의 침투성능 및 유출저감효과 평가
유철상, 이진욱, 조은샘, 주국화, 최한나 한국습지학회 한국습지학회지 11 Pages
한국습지학회 한국습지학회지 2015, Vol.17 No.1 12 101-111 (11 pages)
본 연구에서는 함안군 군북면 소포리 일원에 있는 00부대 이전사업지구에 설치된 레인가든의 특성을 실험을 통해 확 인하고, 레인가든의 침투 및 유출을 모의할 수 있는 1차원 모형을 제안하였다. 구축된 모형을 이용하여 설치 후 및 과 거 10년간의 강우자료를 이용하여 모의 평가를 수행하였다. 아울러 연최대치 호우사상에 대한 적용 평가를 통해 레인 가든이 상쇄시킬 수 있는 불투수면적의 규모를 추정해 보았다. 본 연구의 결과를 정리하면 다음과 같다. (1) 변수위 실 험 방법을 적용하여 추정한 레인가든의 투수계수는 0.0188...
