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전체 선택해제
총 228건 검색
본문검색 결과만 보기
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G-PON TC 계층을 위한 이더넷 정합기의 구현
정해, 안유광, Chung. Hae, Ahn. Eu-Kwang 한국통신학회 한국통신학회논문지. The Journal of Korea Information and Communications Society. 네트워크 및 서비스 8 Pages
한국통신학회 한국통신학회논문지. The Journal of Korea Information and Communications Society. 네트워크 및 서비스 2011, Vol.36 429-436 (8 pages)
G-PON은 FTTH를 효율적으로 구현하는 한 방편이며 이더넷, IP 패킷, TDM 신호 등을 수용할 수 있는 GEM 프레임을 가지고 있다. 그 중에서도 이더넷은 캠퍼스 가입자 액세스, 캐리어 서비스에 있어서 가장 널리 사용되는 제 2 계층 프로토콜이므로 G-PON 시스템은 이더넷 인터페이스를 우선적으로 제공해 주어야 한다. 본 논문은 G-PON TC 칩에서 이더넷 프로토콜을 수용하기 위해 ITU-T G984.3에서 제시한 Ethernet over GEM 규격을 바탕으로 기가급의 이더넷 정합기를 구현한다. 정합기는 각각의 이더넷 프레임을 하나 또는 여러 개의... -
G-PON TC 계층 유료부하 내에서 고속 GEM 프레임 동기회로 구현
정해, 권영진, Chung. Hae, Kwon. Young-Jin 한국통신학회 한국통신학회논문지. The Journal of Korea Information and Communications Society. 네트워크 및 서비스 11 Pages
한국통신학회 한국통신학회논문지. The Journal of Korea Information and Communications Society. 네트워크 및 서비스 2009, Vol.34 469-479 (11 pages)
GEM 프레임은 G-PON 시스템에서 가변 사용자 데이터를 전달하는 수단이며 헤더와 유료부하로 구성된다. 헤더의 HEC 필드는 헤더의 내용을 보호하고 동시에 GEM 프레임 동기를 유지할 목적으로 사용된다. 수신 중에 GEM 프레임 동기를 잃어버리면 다시 동기를 획득 할 때까지 프레임들은 폐기되어야 한다. 따라서 손실되는 프레임의 수를 최소화하기 위해서는 고속의 동기모듈이 필요하다. 본 논문에서는 GEM 헤더에 검출이 불가능한 에러가 나타났을 때 발생하는 프레임 손실을 줄이기 위하여 주 상태머신 이외에 부 상태머신의 사용을... -
Molecular characterization of the feline T-cell receptor γ alternate reading frame protein (TARP) ortholog
Alexander Th. A. Weiss*, Marie-Charlotte von Deetzen, Werner Hecht, Manfred Reinacher, Achim D. Gruber 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 4호 3 345-353 (9 pages)
T-cell receptor γ alternate reading frame protein (TARP) is expressed by human prostate epithelial, prostate cancer, and mammary cancer cells, but is not found in normal mammary tissue. To date, this protein has only been described in humans. Additionally, no animal model has been established to investigate the potential merits of TARP as tumor marker or a target for adoptive tumor immunotherapy. In this study conducted to characterize feline T-cell receptor γ sequences, constructs very... -
Call Admission Control and Handoff Techniques for 3-G and Beyond Mobile Networks
Shekhar Verma, Geetam S. Tomar 인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 12 Pages
인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 2011, 제 1권 제 1호 4 29-40 (12 pages)
Cellular mobile communication Networks have many services and each type of Services has distinct characteristics and Quality of Service requirement. It is important issues in 3-G and beyond networks are to prepare a framework for multiple class service, which performs call admission and handoff efficiently. There have been handful existing mechanisms for improving Call Admission Control (CAC) and Handoff Techniques in mobile network but most of them have considered only single class of service... -
Investigating Changes of Early Childhood Teacher Candidates’ Dispositions: Within One-Year Time Frame
Soyoun Bae-Suh 환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 20 Pages
환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 2007, Vol.1 No.2 3 47-66 (20 pages)
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Effects of body weight-supported treadmill training combined with ball-kicking on balance and gait of subacute stroke patients
Ju-chul Cho, Eun-sang Lee, Seung-won Lee 물리치료재활과학회 Physical Therapy Rehabilitation Science 6 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2015, 제 4권 제 2호 3 73-78 (6 pages)
Objective: This study focused on subacute stroke patients who were asked to kick a ball while walking on a treadmill. The aim of the study was to determine the effect of a body weight-supported treadmill training (BWSTT) combined with ball-kicking on muscle strength, balance, and gait. Design: Single blind, randomized controlled trial. Methods: Twenty stroke patients who volunteered to participate in this study were randomly assigned to either the BWSTT combined with ball-kicking (BWSTT-BK; 10... -
GalT KO/CD39 KI Transgenic Pig Origin Acellular Dermal Matrix: a Possible Source of Wound Healing in a Preclinical Xenograft Study with Non-Human Primates
Sang Chul Kang, Joo-hyun Shim, Kyo Won Lee, Gyu Seong Choi, Ji Soon Lee, Hyeon Yoon, Wook Chun, Ki-myung Choi 대한수의학회 대한수의학회 학술대회발표집 1 Pages
대한수의학회 대한수의학회 학술대회발표집 추계학술심포지움 334 391-391 (1 pages)
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An enhanced immunochromatographic strip test using colloidal gold nanoparticle-labeled dual-type N proteins for detection of antibodies to PRRS virus
Ji Eun Yu, In-Ohk Ouh, Hyeonjeong Kang, Hye-young Lee, Kwang-Myun Cheong, In-Soo Cho, Sang-Ho Cha 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2018, 제 19권 제 4호 7 519-527 (9 pages)
Porcine reproductive and respiratory syndrome (PRRS) is recognized as one of the most important infectious diseases causing serious economic loss in the swine industry worldwide. Due to its increasing genetic diversity, a rapid and accurate diagnosis is critical for PRRS control. The immunochromatographic strip test (ICST) is a rapid and convenient type of immunoassay. In this study, an on-site immunochromatographic assay-based diagnostic method was developed for detection of PRRS virus... -
Cloning, expression and functional analysis of the duck Toll-like receptor 5 (TLR5) gene
Yuqiang Cheng, Yingjie Sun, Hengan Wang, Shuduan Shi, Yaxian Yan, Jing Li, Chan Ding, Jianhe Sun 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2015, 제 16권 제 1호 6 37-46 (10 pages)
Toll-like receptor 5 (TLR5) is responsible for the recognition of bacterial flagellin in vertebrates. In the present study, the first TLR5 gene in duck was cloned. The open reading frame (ORF) of duck TLR5 (dTLR5) cDNA is 2580 bp and encodes a polypeptide of 859 amino acids. We also cloned partial sequences of myeloid differentiation factor 88, 2’-5’-oligoadenylate synthetase (OAS), and myxovirus resistance (Mx) genes from duck. dTLR5 mRNA was highly expressed in the... -
Preparation and diagnostic utility of a hemagglutination inhibition test antigen derived from the baculovirus-expressed hemagglutinin-neuraminidase protein gene of Newcastle disease virus
Kang-Seuk Choi, Soo-Jeong Kye, Woo-Jin Jeon, Mi-Ja Park, Saeromi Kim, Hee-Jung Seul, Jun-Hun Kwon 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2013, 제 14권 제 3호 8 291-297 (7 pages)
A recombinant hemagglutinin-neuraminidase (rHN) protein from Newcastle disease virus (NDV) with hemagglutination (HA) activity was expressed in Spodoptera frugiperda cells using a baculovirus expression system. The rHN protein extracted from infected cells was used as an antigen in a hemagglutination inhibition (HI) test for the detection and titration of NDV-specific antibodies present in chicken sera. The rHN antigen produced high HA titers of 2 per 25 μL, which were similar to those of the... -
Identification of differentially expressed genes in gauze-exposed omentum of dogs using differential display RT-PCR
Md. Mizanur Rahman, Yongsun Kim, Ye-Eun Byeon, Hak-Hyun Ryu, Wan Hee Kim, Mahmuda Umme Rayhan, Oh-Kyeong Kweon* 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2013, 제 14권 제 2호 8 167-173 (7 pages)
Molecular mechanisms governing peritonitis caused by the presence of aseptic gauze have remained unclear. To identify the genes involved, sterile gauze-exposed omentum was collected at 0, 6, 12, 24, and 48 h intervals, and analyzed by differential display RT(reverse transcription)-PCR. Among over 1,200 bands, 230 bands were found differentially expressed. These bands represented the fragment sizes of approximately 200 to 1,500 bp. The eight fragments were expressed differentially in the... -
Induction of humoral responses to BHV-1 glycoprotein D expressed by HSV-1 amplicon vectors
Andrea Maria Blanc, Mabel Beatriz Berois, Lorena Magalí Tomé, Alberto L. Epstein, Juan Ramón Arbiza* 대한수의학회 Journal of Veterinary Science 7 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 1호 9 59-65 (7 pages)
Herpes simplex virus type-1 (HSV-1) amplicon vectors are versatile and useful tools for transferring genes into cells that are capable of stimulating a specific immune response to their expressed antigens. In this work, two HSV-1-derived amplicon vectors were generated. One of these expressed the full-length glycoprotein D (gD) of bovine herpesvirus 1 while the second expressed the truncated form of gD (gDtr) which lacked the trans-membrane region. After evaluating gD expression in the infected... -
Cloning and characterization of a selenium-independent glutathione peroxidase (HC29) from adult Haemonchus contortus
Wei Sun, Xiaokai Song, Ruofeng Yan, Lixin Xu, Xiangrui Li* 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2012, 제 13권 제 1호 8 49-58 (10 pages)
The complete coding sequence of Haemonchus (H.) contortus HC29 cDNA was generated by rapid amplification of cDNA ends in combination with PCR using primers targeting the 5´- and 3´-ends of the partial mRNA sequence. The cloned HC29 cDNA was shown to be 1,113 bp in size with an open reading frame of 507 bp, encoding a protein of 168 amino acid with a calculated molecular mass of 18.9 kDa. Amino acid sequence analysis revealed that the cloned HC29 cDNA contained the conserved catalytic triad and... -
Novel insertion mutation of ABCB1 gene in an ivermectin-sensitive Border Collie
Jae-Ik Han, Hyoung-Won Son, Seung-Cheol Park, Ki-Jeong Na* 대한수의학회 Journal of Veterinary Science 4 Pages
대한수의학회 Journal of Veterinary Science 2010, 제 11권 제 4호 10 341-344 (4 pages)
P-glycoprotein (P-gp) is encoded by the ABCB1 gene and acts as an efflux pump for xenobiotics. In the Border Collie, a nonsense mutation caused by a 4-base pair deletion in the ABCB1 gene is associated with a premature stop to P-gp synthesis. In this study, we examined the full- length coding sequence of the ABCB1 gene in an ivermectin- sensitive Border Collie that lacked the aforementioned deletion mutation. The sequence was compared to the corresponding sequences of a wild-type Beagle and... -
Genetic analysis of ORF5 of recent Korean porcine reproductive and respiratory syndrome viruses (PRRSVs) in viremic sera collected from MLV-vaccinating or non-vaccinating farms
Hye Kwon Kim, Jeong Sun Yang, Hyoung Joon Moon, Seong Jun Park, Yuzi Luo, Chul Seung Lee, Dae Sub Song, Bo Kyu Kang, Soo Kyung A 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2009, 제 10권 제 2호 5 121-130 (10 pages)
The 23 open reading frame (ORF) 5 sequences of Korean type II porcine reproductive and respiratory syndrome virus (PRRSV) were collected from viremic sera from the (modified live vaccine) MLV-vaccinating and non-vaccinating farms from 2007 to 2008. The samples were phylogenetically analyzed with previous ORF5 sequences, including type I Korean PRRSV, and previously reported or collected sequences from 1997 to 2008. A MN184-like subgroup of type II Korean PRRSV was newly identified in the viremic... -
In vitro and in vivo gene therapy with CMV vector-mediated presumed dog β-nerve growth factor in pyridoxine-induced neuropathy dogs
Jin-Young Chung, Jung-Hoon Choi, Il-Seob Shin, Eun-Wha Choi, Cheol-Yong Hwang, Sang-Koo Lee, Hwa-Young Youn* 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2008, 제 9권 제 4호 5 367-374 (8 pages)
Due to the therapeutic potential of gene therapy for neuronal injury, many studies of neurotrophic factors, vectors, and animal models have been performed. The presumed dog β-nerve growth factor (pdβ-NGF) was generated and cloned and its expression was confirmed in CHO cells. The recombinant pdβ-NGF protein reacted with a human β-NGF antibody and showed bioactivity in PC12 cells. The pdβb-NGF was shown to have similar bioactivity to the dog β-NGF. The recombinant pdβ-NGF plasmid was... -
Exposure to genistein does not adversely affect the reproductive system in adult male mice adapted to a soy-based commercial diet
Beom Jun Lee, Jong-Koo Kang, Eun-Yong Jung, Young Won Yun, In-Jeoung Baek, Jung-Min Yon, Yoon-Bok Lee, Heon-Soo Sohn, Jae-Yong L 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2004, 제 5권 제 3호 7 227-234 (8 pages)
Genistein, a soybean-originated isoflavone, is widely consumed by humans for putative beneficial health effects but its estrogenic activity may affect adversely the development of male reproductive system. Five-week-old ICR mice were purchased and fed with a soybean-based Purina Chow diet until 6 months of age. The animals were exposed by gavage to genistein (2.5 mg/kg/day) or 17β-estradiol (7.5μg/kg/day) for five weeks. Corn oil was used for the negative control. The animals were fed the... -
Molecular characterization of full-length genome of Japanese encephalitis virus (KV1899) isolated from pigs in Korea
Dong Kun Yang, Byoung Han Kim, Chang Hee Kweon, Jun Hun Kwon, Seong In Lim, Hong Ryul Han 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2004, 제 5권 제 3호 3 197-205 (9 pages)
We have determined the complete nucleotide and deduced amino acid sequences of the Japanese encephalitis virus (JEV) strain KV1899, isolated from a fattening pig in Korea. In comparison with 22 fully sequenced JEV genomes currently available, we found that the 10,963- nucleotide RNA genome of KV1899 has a 13-nucelotide deletion in the 3' non-translated variable region and 53 unique nucleotide sequences including 3' non-translated region (NTR). Its single open reading frame has a total of 28... -
Sequence Analysis of Canine LINE-1 Elements and p53 Gene in Canine Transmissible Venereal Tumor
Young-Ki Choi and Chul-Joong Kim 대한수의학회 Journal of Veterinary Science 8 Pages
대한수의학회 Journal of Veterinary Science 2002, 제 3권 제 4호 6 285-292 (8 pages)
LINEs (long interspersed nuclear elements or long interspersed repeated DNA elements) contains two open reading frames (ORFs), ORF1 and ORF2. We analysed the ORF2 located in the 5' region to the first exon of oncogene c-myc in canine transmissible venereal tumor (TVT) cell. We also showed the transcription activation was induced by this TVT-LINE sequence using CAT assay. To identify the mutation of tumor suppressor gene, sequence analysis of p53 from TVT cell was performed. We identified the... -
Genetic characterization of porcine circovirus - 2 field isolates from PMWS pigs
Jin H. Kim, Young S. Lyoo 대한수의학회 Journal of Veterinary Science 9 Pages
대한수의학회 Journal of Veterinary Science 2002, 제 3권 제 1호 6 31-39 (9 pages)
PMWS is a new emerging disease in swine herds worldwide. Field isolates of PCV-2, a putative major causative agent of PMWS, were isolated and genetically characterized. Viral genome of two field isolates (PC201DJ and PC201SS) from pigs showing typical PMWS was sequenced. The nucleotide sequence homology with other PCV-2 isolates was ranging from 95% to 99% in complete viral genomic sequence. The highly conserved nonanucleotide motif of replication origin was identical to that of other PCV-2... -
Accuracy of three-dimensional cephalograms generated using a biplanar imaging system
Ha-Yeon Park, Jae-Seo Lee, Jin-Hyoung Cho, Hyeon-Shik Hwang, Kyung-Min Lee 대한치과교정학회 The Korean Journal of Orthodontics 12 Pages
대한치과교정학회 The Korean Journal of Orthodontics 2018, 제 48권 제 5호 3 292-303 (12 pages)
Objective: Biplanar imaging systems allow for simultaneous acquisition of lateral and frontal cephalograms. The purpose of this study was to compare measurements recorded on three-dimensional (3D) cephalograms constructed from two-dimensional conventional radiographs and biplanar radiographs generated using a new biplanar imaging system with those recorded on conebeam computed tomography (CBCT)-generated cephalograms in order to evaluate the accuracy of the 3D cephalograms generated using the... -
Effect of Glutamate on the Vestibulo-Solitary Projection after Sodium Nitroprusside-Induced Hypotension in Conscious Rats
Li-WeiLi, Guang-ShiJin, Yan-ZhaoYang, AbdulNasirAmeer, MinSunKim, ByungRimPark, Yuan-ZheJin 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.3 13 275-281 (7 pages)
Orthostatic hypotension is most common in elderly people, and its prevalence increases with age. Attenuation of the vestibulo-sympathetic reflex (VSR) is commonly associated with orthostatic hypotension. In this study, we investigated the role of glutamate on the vestibulo-solitary projection of the VSR pathway to clarify the pathophysiology of orthostatic hypotension. Blood pressure and expression of both pERK and c-Fos protein were evaluated in the nucleus tractus solitarius (NTS) after... -
5-Hydroxytryptamine Generates Tonic Inward Currents on Pacemaker Activity of Interstitial Cells of Cajal from Mouse Small Intestine
PawanKumarShahi, SeokChoi, DongChuanZuo, CheolHoYeum, PyungJinYoon, JunLee, YoungDaeKim, ChanGukPark, ManYooKim, HyeRangShin, HyunJungOh, J 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2011, Vol.15 No.3 2 129-135 (7 pages)
In this study we determined whether or not 5-hydroxytryptamine (5-HT) has an effect on the pacemaker activities of interstitial cells of Cajal (ICC) from the mouse small intestine. The actions of 5-HT on pacemaker activities were investigated using a whole-cell patch-clamp technique, intracellular Ca2＋ ([Ca2＋]i) analysis, and RT-PCR in ICC. Exogenously-treated 5-HT showed tonic inward currents on pacemaker currents in ICC under the voltage-clamp mode in a dose-dependent manner. Based on RT-PCR... -
Accurate Representation of Light-intensity Information by the Neural Activities of Independently Firing Retinal Ganglion Cells
SangBaekRyu, JangHeeYe, ChiHyunKim, YongSookGoo, KyungHwanKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2009, Vol.13 No.3 13 221-227 (7 pages)
For successful restoration of visual function by a visual neural prosthesis such as retinal implant, electrical stimulation should evoke neural responses so that the information on visual input is properly represented. A stimulation strategy, which means a method for generating stimulation waveforms based on visual input, should be developed for this purpose. We proposed to use the decoding of visual input from retinal ganglion cell (RGC) responses for the evaluation of stimulus encoding... -
Gene Transfer of Cu/ZnSOD to Cerebral Vessels Prevents Subarachnoid Hemorrhage-induced Cerebral Vasospasm
MiRanYun, DongEunKim, HyeJinHeo, JiYoungPark, JiYoungLee, SunSikBae, ChiDaeKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 6 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2005, Vol.9 No.6 3 327-332 (6 pages)
The preventive effects of gene transfer of human copper/zinc superoxide dismutase (Cu/ZnSOD) on the development of cerebral vasospasm after subarachnoid hemorrhage (SAH) were examined using a rat model of SAH. An experimental SAH was produced by injecting autologous arterial blood twice into the cisterna magna, and the changes in the diameter of the middle cerebral artery (MCA) were measured. Rats subjected to SAH exhibited a decreased diameter with an increased wall thickness of MCA that were... -
Ca2+-activated K+ Currents of Pancreatic Duct Cells in Guinea-pig
Han-WookLee, JingchaoLi, Na-YounKoo, ZhengGenPiao, SungMinHwang, Jae-WoongHan, Han-SaemChoi, Jong-HeunLee, JoongSooKim, KyungpyoPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 4 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2004, Vol.8 No.6 7 335-338 (4 pages)
There are numerous studies on transepithelial transports in duct cells including Cl and/or HCO3. However, studies on transepithelial K transport of normal duct cells in exocrine glands are scarce. In the present study, we examined the characteristics of K currents in single duct cells isolated from guinea pig pancreas, using a whole-cell patch clamp technique. Both Cl and K conductance were found with KCl rich pipette solutions. When the bath solution...
