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Canine model of ischemic stroke with permanent middle cerebral artery occlusion: clinical features, magnetic resonance imaging, histopathology, and immunohistochemistry
Joon-Hyeok Jeon, Hae-Won Jung, Hyo-Mi Jang, Jong-Hyun Moon, Ki-Tae Park, Hee-Chun Lee, Ha-Young Lim, Jung-Hyang Sur, By 대한수의학회 Journal of Veterinary Science 11 Pages
대한수의학회 Journal of Veterinary Science 2015, 제 16권 제 1호 10 75-85 (11 pages)
The purpose of this study was to identify time-related changes in clinical, MRI, histopathologic, and immunohistochemical findings associated with ischemic stroke in dogs. Additionally, the association of cerebrospinal fluid (CSF) and tissue levels of interleukin (IL)-6 with clinical prognosis was assessed. Ischemic stroke was induced by permanent middle cerebral artery occlusion (MCAO) in nine healthy experimental dogs. The dogs were divided into three groups... -
Mitral valve prolapse in Cavalier King Charles Spaniel:A review and case study
Changbaig Hyun 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2005, 제 6권 제 1호 10 67-73 (7 pages)
in ECG and thoracic radiography, mitral valvular leaflet protrusion into left the atrium, decreased E-point-to septal separation (EPSS) and mitral regurgitated flow in echocardiography, all of which are characteristic signs of mitral valvular prolapse. After intensive care with antidiuretics and a vasodilator with oxygen supplement, the condition of the dog was stabilized. The dog was then released and is being medicated with angiotensin converting enzyme (ACE) inhibitor with regular follow-up. -
Spontaneous Electrical Activity in Cerebellar Purkinje Neurons of Postnatal Rats
SangChaeNam 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 12 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1997, Vol.1 No.4 2 355-366 (12 pages)
Although cerebellar Purkinje cells display spontaneous electrical activity in vivo and in slice experiments, the mechanism of the spontaneous activity generation has not been clearly understood. The aim of this study was to investigate whether cerebellar Purkinje cells of postnatal rats generate spontaneous electrical activity without synaptic inputs. Dissociated cerebellar Purkinje cells were used for reducing synaptic inputs in the present study. Cerebellar Purkinje cells with dendrites were... -
Molecular Characterization of a Novel Putative Partitivirus Infecting Cytospora sacchari, a Plant Pathogenic Fungus
한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2014, 30권 2호 5 151-158 (8 pages)
Three double-stranded RNAs (dsRNAs), approximately 1.85, 1.65 and 1.27 kb in size, were detected in an isolate of Cytospora sacchari from Iran. Partial nucleotide sequence revealed a 1,284 bp segment containing one ORF that potentially encodes a 405 aa protein. This protein contains conserved motifs related to RNA dependent RNA polymerases (RdRp) that showed similarity to RdRps of partitiviruses. The results indicate that these dsRNAs represent a novel Partitivirus that we tentatively designate... -
Analysis of Learning Objectives of Science Subject on Basic Curriculum for Students with Developmental Disabilities in Korea - Centered on natrual environment-
Kim Hai-gyoung 아시아장애사회학회 아시아장애사회학연구 11 Pages
아시아장애사회학회 아시아장애사회학연구 2008, 제 7권 16 157-167 (11 pages)
The purpose of this study was to analyze educational objectives of science subject in the basic curriculum of the 7th special school curriculurn and learning objectives of natural environment field in science textbooks by using Klopfer' s taxonomic system. It was analyzed that general objectives of science subject and four sub- educationa1 objectives set category of knowledge and understanding(A.O), scientific inquiry process(B.O- E.O), application of knowledge and method(F.O), and attitude and... -
사면 보호를 위한 녹생토 재료 특성 검증
이병재, 허형석, 노재호, 장영일 인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 12 Pages
인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 2017, 제 7권 제 6호 63 681-692 (12 pages)
최근 들어 사회 간접시설 확충 및 경제발전 계획에 의하여 전국적으로 도로 확포장공사 및 신도시 건설 등 대규모 공사가 이루어지며 이로 인하여 인위적인 사면 훼손이 급격히 증가되고 있다. 기존의 비탈면녹화공법인 식생 기반재 취부공법은 결합력의 부족이나 건조화, 유기물의 부족 등의 문제점들 을 보이고 있다. 본 연구에서는 천연부엽토, 바크퇴비, 코코피트, 질석이 포함되어 사용되고 있는 식 생 기반재와 친환경적인 토양첨가제를 활용하여 연구수행을 하였다. 토양첨가제의 혼합비율에 따라 압축강도를 측정하였으며 식생... -
고로슬래그 및 실리카흄을 혼입한 콘크리트의 양생온도에 따른 강도발현 특성
김선우, 박완신, 장영일, 윤송희, 윤현도, 김도겸 인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 10 Pages
인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 2014, 제 4권 제 2호 22 271-280 (10 pages)
본 연구에서는 일축압축시험 하에서 고로슬래그 및 실리카흄을 갖는 고성능콘크리트의 압축거동을 평가하고자 하였다. 고성능콘크리트의 압축강도 평가를 위해 총 3가지의 물결합재비(0.40, 0.34 및 0.28)를 변수로 하였다. KS F 2403 규정에 따라 100mm x 200mm의 원형공시체를 제작하였으며, 양생 온도(20, 35, 및 50℃)에 따른 고성능콘크리트의 강도발현 특성을 평가하기 위하여 양생기간별(1, 7, 28 및 91일) 압축강도를 측정하였다. 실험결과, 설계기준압축강도의 50% 및 67% 도달시까지는 물결합재 비가 높을수록 강도발현속도에... -
의약광고의 현황과 전망: 한국, 일본, 홍콩, 호주, 미국 5개국을 중심으로
백혜진, 이혜규, CarolusL.C.Praet, KaraChan, P.MonicaChien, 허지수, GlenT.Cameron 한국헬스커뮤니케이션학회 헬스커뮤니케이션연구 63 Pages
한국헬스커뮤니케이션학회 헬스커뮤니케이션연구 2011, Vol.3 No.1 1 1-63 (63 pages)
의약 산업은 질병 및 사망률 감소를 위한 노력, 의학 시설 및 치료 기술의 발전, 인구의 노령 화 등으로 인해 세계적으로 가장 각광받고 있는 산업 중 하나이다.그러나 의약 광고는 국민 건강 과의 밀접한 관계로 인해 정부 기관으로부터 강한 규제와 함께, 의학 단체, 보건 관계자 및 연구 자들의 감시를 받아왔다. 이렇듯 의약 산업에 얽힌 복잡한 이해관계는 실무자들과 연구자들의 범 국가적인 논의를 필요로 한다. 특히, 세계적 경제 침체는 처방 약품(Direct-to-consumer advertising [DTC]) 광고의 집행을 허용하라는 일부의... -
Optical sensitivity of DNA-dispersed single-walled carbon nanotubes within cement composites under mechanical load
Jin Hee Kim, Inkyu Rhee, Yong Chae Jung, Sumin Ha, Yoong Ahm Kim 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2017, Vol.24 12 90-96 (7 pages)
We demonstrated the sensitivity of optically active single-walled carbon nanotubes (SWCNTs) with a diameter below 1 nm that were homogeneously dispersed in cement composites under a mechanical load. Deoxyribonucleic acid (DNA) was selected as the dispersing agent to achieve a homogeneous dispersion of SWCNTs in an aqueous solution, and the dispersion state of the SWCNTs were characterized using various optical tools. It was found that the addition of a large amount of DNA prohibited the... -
Effect of the surface modification using MWCNTs with different L/D by two different methods of deposition on the IFSS of single carbon fiber-epoxy resin composite
Minerva L. Herrera-Sosa, Alex Valadez-Gonz?lez, Humberto V?zquez-Torres, Pierre G. Mani-Gonz?lez, Pedro J. Herrera-Franco 한국탄소학회 Carbon Letters 10 Pages
한국탄소학회 Carbon Letters 2017, Vol.24 3 18-27 (10 pages)
Multiwall carbon nanotubes (MWCNT) with two different (L/D) aspect ratios (7±2 μm/140±30 nm and 0.5?2 μm/8?15 nm) were surface treated using nitric acid (HNO3) and polyethyleneimine (PEI) prior to their deposition on carbon fibers (CF). Before the hierarchical reinforcement with CF-MWCNT, the CFs were treated with 3-glycidoxypropyltrimethoxysilane, a coupling agent (Z6040) and with poly(amidoamine) (PAMAM) a dendrimer containing an ethylenediamine core and amine surface groups. The MWCNT... -
Mechanical properties of epoxy composites reinforced with ammonia-treated graphene oxides
Mi-Seon Park, Sangmin Lee, Young-Seak Lee 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2017, Vol.21 1 1-7 (7 pages)
strength values were 42.1 MPa and 12.3 J/m, respectively, which were observed in an epoxy composite prepared with GO treated with a 28% ammonia solution. This improved tensile strength was 2.2 and 1.3 times higher than those of the neat epoxy and the non-treated GO-based epoxy composite, respectively. The amine groups on the GO ensure its participation in the cross-linking reaction of the epoxy resin under amine curing agent condition and enhance its interfacial bonding with the epoxy resin. -
Effects of electrochemical oxidation of carbon fibers on interfacial shear strength using a micro-bond method
Dong-Kyu Kim, Kay-Hyeok An, Yun Hyuk Bang, Lee-Ku Kwac, Sang-Yub Oh, Byung-Joo Kim 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 4 32-39 (8 pages)
In this work, we studied the effects of electrochemical oxidation treatments of carbon fibers (CFs) on interfacial adhesion between CF and epoxy resin with various current densities. The surface morphologies and properties of the CFs before and after electrochemical-oxidation-treatment were characterized using field emission scanning electron microscopy, atomic force microscopy, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and single-fiber contact angle. The... -
Phenylethynyl-terminated polyimide, exfoliated graphite nanoplatelets, and the composites: an overview
Donghwan Cho, Lawrence T. Drzal 한국탄소학회 Carbon Letters 11 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 1 1-11 (11 pages)
high-temperature sizing material for carbon fiber-reinforced polymer matrix composites, PETI-5 imidization and thermal curing behaviors have been extensively investigated based on the phenylethynyl end-group reaction. These studies are reviewed here. In addition, the use of PETI-5 to enhance interfacial adhesion between carbon fibers and a bismaleimide (BMI) matrix, as well as the dynamic mechanical properties of carbon/BMI composites, are discussed. Reports on the thermal expansion behavior of... -
Flexural properties, interlaminar shear strength and morphology of phenolic matrix composites reinforced with xGnP-coated carbon fibers
Jong Kyoo Park, Jae Yeol Lee, Lawrence T. Drzal, Donghwan Cho 한국탄소학회 Carbon Letters 6 Pages
한국탄소학회 Carbon Letters 2016, Vol.17 No.1 5 33-38 (6 pages)
In the present study, exfoliated graphite nanoplatelets (xGnP) with different particle sizes were coated onto polyacrylonitrile-based carbon fibers by a direct coating method. The flexural properties, interlaminar shear strength, and the morphology of the xGnP-coated carbon fiber/phenolic matrix composites were investigated in terms of their longitudinal flexural strength and modulus, interlaminar shear strength, and by optical and scanning electron microscopic observations. The results were... -
Effects of cross-linking methods for polyethylene-based carbon fibers: review
Kwan-Woo Kim, Hye-Min Lee, Jeong-Hun An, Byoung-Suhk Kim, Byung-Gak Min, Shin-Jae Kang, Kay-Hyeok An, Byung-Joo Kim 한국탄소학회 Carbon Letters 24 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.3 2 147-170 (24 pages)
In recent decades, there has been an increasing interest in the use of carbon fiber reinforced plastic (CFRP) in aerospace, renewable energy and other industries, due to its low weight and relatively good mechanical properties compared with traditional metals. However, due to the high cost of petroleum-based precursors and their associated processing costs, CF remains a specialty product and as such has been limited to use in high-end aerospace, sporting goods, automotive, and specialist... -
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... -
Effect of surface treatment of graphene nanoplatelets for improvement of thermal and electrical properties of epoxy composites
Minjae Kim, Yeongseon Kim, Sung Hyeon Baeck and Sang Eun Shim 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.1 5 34-40 (7 pages)
In this study, in order to improve the thermal and electrical properties of epoxy/graphene nanoplatelets (GNPs), surface modifications of GNPs are conducted using silane coupling agents. Three silane coupling agents, i.e. 2-(3,4-epoxycyclohexyl)-ethyltrimethoxysilane (ETMOS), 3-glycidoxypropyltriethoxysilane (GPTS), and 3-glycidoxypropyltrimethoxysilane (GPTMS), were used. Among theses, GPTMS exhibits the best modification performance for fabricating GNP-incorporated epoxy composites. The effect... -
Modifications of mechanical, thermal, and electrical characteristics of epoxy through dispersion of multi-walled carbon nanotubes in supercritical carbon dioxide
MGH ZAIDI, Sanjeev Joshi, Manoj Kumar, Deepak Sharma, Ashwin Kumar, Sarfaraz Alam, Prakash Sah 한국탄소학회 Carbon Letters 10 Pages
한국탄소학회 Carbon Letters 2013, Vol.14 No.4 4 218-227 (10 pages)
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Carbon nanofiber-reinforced polymeric nanocomposites
Changwoon Jang, John Hutchins, Jaesang Yu 한국탄소학회 Carbon Letters 9 Pages
한국탄소학회 Carbon Letters 2013, Vol.14 No.4 1 197-205 (9 pages)
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교류분석(TA)으로 본 가정폭력 행위자 교정ㆍ치료 프로그램의 실행연구
최은봉 한국교류분석협회 교류분석과 심리사회치료 연구 19 Pages
한국교류분석협회 교류분석과 심리사회치료 연구 2008, 제 5권 제 1호 (통권 6호) 5 115-133 (19 pages)
본 연구는 상담소 창구를 통해 가정적 문제가 있어 상담을 필요로 한 피해자의 제공으로 가정폭력 행위자를 대상으로 교류분석 이론을 활용하여 행위자의 성향을 분석하고 교정. 치료에 목적을 두고 프로그램을 진행하며 효과성에 관한 연구이다. 교류분석이론의 임상적 측면을 활용하여 구성한 교육 프로그램으로 행위자에게 개인상담 3차시, 집단 상담 활동 8차시로 나누어 그들의 성격구조기능과 심리상태를 분석하여 폭력의 관계성을 밝히고 낮은 자존감 향상과 자기효능감 대인관계의 의사소통 법으로 인간성 회복과 정체성확립에... -
순환골재 및 고로슬래그 시멘트를 사용한 증기양생 콘크리트의 강도 특성
이명규, 김광서, 이근호, 정상화, Lee. Myung-Kue, Kim. Kwang-Seo, Lee. Keun-Ho, Jung. Sang-Hwa 한국콘크리트학회 콘크리트학회논문집 8 Pages
한국콘크리트학회 콘크리트학회논문집 2005, Vol.17 No.4 613-620 (8 pages)
순환골재를 구조체용 콘크리트에 이용하는 것은 품질관리 및 내구성에 대한 논란으로 활성화가 현실적으로 어려운 실정이다. 이 경우 상대적으로 요구되는 품질 수준이 낮은 콘크리트 2차 제품에 순환골재를 활용하는 것이 유력한 대안이 될 수 있지만 증기 양생시 순환골재 콘크리트의 특성에 대한 연구성과는 거의 없는 실정이다. 이에 본 연구에서는 순환골재의 콘크리트 2차 제품 적용성을 검토하기 위하여, 다양한 순환 굵은골재 및 순환 잔골재 치환율에 따라 증기양생 및 수중양생을 통하여 제작된 콘크리트의 압축강도, 휨강도,... -
아민계 분산제가 실리카 고무배합물의 물성에 미치는 영향
박성수, 길상규, 장병만, 송기찬, 김수경, Park. Sung-Soo, Kil. Sang-Gyu, Jang. Byung-Man, Song. Ki-Chan, Kim. Su-Kyung 한국고분자학회 폴리머 9 Pages
한국고분자학회 폴리머 2001, Vol.25 No.4 503-511 (9 pages)
기존 실리카 분산제는 주로 Zn, K의 지방산 유도체이며 지방산과 금속비누의 혼합물은 활성을 높이는데 사용되었다. Zn-K 비누 형태의 실리카 분산제는 탄화수소 사슬의 유동성을 증가시켜 실리카가 함유된 고무 배합물의 점도를 낮추어 주며 그 결과 가공성이 향상된다. 실리카 분산제는 가류 특성에 영향을 미쳐서는 안되는데 Zn-K 비누형태의 분산제는 스코치 및 가류시간을 단축시켰다. 그러나 새로이 개발된 분산제의 경우 금속을 함유하지 않은 non-metal 형태이며 분산제가 실리카와 고무간의 interaction을 유도하여 실리카... -
증기양생 재생콘크리트의 강도특성에 관한 실험연구
이명규, 김광서, 이근호, 정상화, Lee. Myung-Kue, Kim. Kwang-Seo, Lee. Keun-Ho, Jung. Sang-Hwa 한국건축시공학회 한국건축시공학회지 7 Pages
한국건축시공학회 한국건축시공학회지 2005, Vol.5 No.2 89-95 (7 pages)
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Preventing Extracellular Diffusion of Trigeminal Nitric Oxide Enhances Formalin-induced Orofacial Pain
Hwi-SeokJung, Hong-BinJeon, Ik-SungJeon, Bum-JunLee, Hyun-WooYoo, Dong-KukAhn, Dong-HoYoun 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 5 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.5 8 379-383 (5 pages)
Nitric oxide (NO), a diffusible gas, is produced in the central nervous system, including the spinal cord dorsal horn and the trigeminal nucleus, the first central areas processing nociceptive information from periphery. In the spinal cord, it has been demonstrated that NO acts as pronociceptive or antinociceptive mediators, apparently in a concentration-dependent manner. However, the central role of NO in the trigeminal nucleus remains uncertain in support of processing the orofacial...
