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Micropropagation through Stem, Node-bud Shoot Tip and Bulblet Scale Culture in Fritillaria thunbergii Miq.
백기엽, 유광진, 성낙술, 최인식, 조진태, Peak. Kee-Yoeup, Yu. Kwang-Jin, Seong. Nak-Sul, Choi. In-Sick, Cho. Jin-Tae 한국약용작물학회 韓國藥用作物學會誌 8 Pages
한국약용작물학회 韓國藥用作物學會誌 1994, Vol.2 No.2 154-161 (8 pages)
폐모(Fritillaria thunbergii)의 자구인편, 줄기, 및 마디조직 및 정단을 구명하고자 실험한 결과는 다음과 같다. 1. 자구형성수는 자구인편조직에 비해 마디나 줄기조직에서, BA처리구보다 kinetin처리구에서 현저히 증가하였다. 줄기조직은 생장이 3cm이하일 때 채취하여 kinetin이 $1.0{sim}3.0mg;/L$첨가된 배지에 배양하였을 , 마디조직은 3cm이상 생장한 조직을 kinet이 5.0mg /L 첨가된 배지에 배양하였을 때 자구형성수가 증가하였다. 기내에서 생장한 마디의 액아에서 자구가 직접 형성되는 현상도 관찰되었는데 최고 15개의... -
Diversity in Betasatellites Associated with Cotton Leaf Curl Disease During Source-To-Sink Movement Through a Resistant Host
한국식물병리학회 The Plant Pathology Journal 6 Pages
한국식물병리학회 The Plant Pathology Journal 2016, 32권 1호 6 47-52 (6 pages)
Cotton leaf curl is devastating disease of cotton characterized by leaf curling, vein darkening and enations. The disease symptoms are induced by DNA satellite known as Cotton leaf curl Multan betasatellite (CLCuMuB), dominant betasatellite in cotton but another betasatellite known as Chili leaf curl betasatellite (ChLCB) is also found associated with the disease. Grafting experiment was performed to determine if host plant resistance is determinant of dominant population of betasatellite in... -
3상 Z-소스 하이브리드 능동전력필터 시스템
임영철, 김재현, 정영국, Lim. Young-Cheol, Kim. Jae-Hyun, Jung. Young-Gook 전력전자학회 전력전자학회 논문지 11 Pages
전력전자학회 전력전자학회 논문지 2010, Vol.15 No.1 75-85 (11 pages)
Z-소스 토폴로지의 능동전력필터의 보상 DC전원으로는 PEMFC가 사용되며, Z-소스 인버터의 shoot-through 듀티비의 조절에 의하여 낮은 연료전지의 전압을 높은 보상 전압으로 부스트 한다. 제안된 시스템은 병렬형 Z-소스 능동전력필터와 7차 고조파 (420Hz) 동조 필터로 구성되며, 이 구성에 의하여 Z-소스 능동전력필터의 스위치 디바이스의 전압 스트레스는 감소된다. 제안된 Z-소스 하이브리드 능동전력필터의 보상 알고리즘으로는 전류 동기 검출법이 사용되었다. 3상 220V/60Hz, 25A급 비선형 다이오드 부하 조건하에서 PSIM... -
Z-소스 인버터를 사용한 단상 계통 연계형 태양광 시스템 제어
전태원, 트란콴빈, 김흥근, Chun. Tae-Won, Tran. Quang-Vinh, Kim. Heung-Geun 전력전자학회 전력전자학회 논문지 7 Pages
전력전자학회 전력전자학회 논문지 2008, Vol.13 No.5 369-375 (7 pages)
본 논문에서는 Z-소스 인버터를 사용하여 단상 계통 연계형 태양광 시스템을 제어하는 기법을 제시하였다. 인버터 스위칭소자의 전압 스트레스를 고려하여 광전지 출력전압에 대한 계통 연계형 Z-소스 인버터의 동작영역을 분석하였다. 스위칭 손실을 감소시키면서 shoot-through 시간을 효율적으로 제어하는 스위칭 패턴을 사용하였다. 시뮬레이션 및 32-비트 DSP를 사용한 실험을 통하여 계통연계형 Z-소스 인버터의 제어 시스템의 성능을 평가하였다. -
변형 공간벡터방식을 사용한 Z-Source 인버터의 해석 및 제어
전태원, 황빈트랜, 김흥근, 노의철, Chun. Tae-Won, Tran. Quang-Vinh, Kim. Heung-Gun, Nho. Eui-Cheol 전력전자학회 전력전자학회 논문지 7 Pages
전력전자학회 전력전자학회 논문지 2007, Vol.12 No.4 332-338 (7 pages)
본 논문은 ZSI에서 shoot-through 시간을 효율적으로 제어하기 위한 변형 공간전압 변조방식으로 3종류를 제시하였다. 3개의 변형 공간전압 변조방식에 대한 스위칭 패턴과 shoot-through 시간변화에 대한 변조신호의 변화를 분석한다. Shoot-through 시간 제어 범위와 함께 스위칭 패턴 및 변조신호의 평형성 등을 고려하여 최적의 변형 공간전압 변조방식을 선정하였으며, 32비트 DSP를 사용한 실험을 통하여 그 타당성을 확인한다. -
듀티 비에 따른 단상 Z-소스 인버터의 효율과 출력 전압에 관한 연구
홍승표, 정영국, 임영철, Hong. Seung-Pyo, Jung. Young-Gook, Lim. Young-Cheol 한국조명전기설비학회 照明·電氣設備學會論文誌 12 Pages
한국조명전기설비학회 照明·電氣設備學會論文誌 2011, Vol.25 No.8 8-19 (12 pages)
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다이오드 정류기/Z-소스 인버터 시스템의 공통모드 전압 해석
트란콴빈, 전태원, 이홍희, Tran. Quang-Vinh, Chun. Tae-Won, Lee. Hong-Hee 전력전자학회 전력전자학회 논문지 8 Pages
전력전자학회 전력전자학회 논문지 2009, Vol.14 No.4 285-292 (8 pages)
본 논문은 다이오드 정류기와 Z-소스 인버터로 교류전동기 구동 시 암 단락 (shoot-through) 상태와 비 암 단락 상태를 나누어 각각 등가회로를 구성하고 공통모드 전압을 분석한다. 음의 값의 공통모드 전압을 감소시키기 위하여 암 단락 시간 제어와 함께 영전압 벡터인가 구간을 제거하는 변형 공간벡터변조기법을 제시한다. PSIM과 32-비트 DSP를 사용한 실험 및 시뮬레이션 결과를 통하여 음의 공통모드전압이 50%이상 감소됨을 확인하였다. -
Osteokinematic analysis during shoulder abduction using the C-arm
Seung Hoo Lee, Young-hoon Kim, Dong Geon Lee, Kyeong-Bong Lee, Gyu Chang Lee 물리치료재활과학회 Physical Therapy Rehabilitation Science 6 Pages
물리치료재활과학회 Physical Therapy Rehabilitation Science 2017, 제 6권 제 4호 9 208-213 (6 pages)
Objective: Despite reliable evidence of abnormal scapular motions increases, there is not yet sufficient evidence of abnormal humeral translations. This study aims to analyze the motion of the humeral head toward the scapula when the shoulder is actively abducted using the C-arm. Design: A case report. Methods: The participant was a healthy man without any limitation and pain during shoulder movement. The participant’s shoulder was abducted; this movement in the frontal plane was measured using... -
Curriculum for a Subject using Cloud-based SW to Enhance Untact Education Capabilities of Field Teachers
Hur Kyeong 경인교육대학교 교육연구원 The Journal of Education 15 Pages
경인교육대학교 교육연구원 The Journal of Education 2020, Vol.3 No.2 7 109-123 (15 pages)
In this paper, a practical curriculum for using cloud software (SW) is proposed that can be applied as a subject for strengthening the untact education capability of field teachers. For untact education, teachers require content creation and online collaboration skills. Content creation forms are divided into real-time and video contents. Cloud-based SW can be used for online collaboration education. Currently, cloud-based Google and Chrome SW can be used to create real-time and video contents.... -
A Novel Nicotinamide Adenine Dinucleotide Correction Method for Mitochondrial Ca2+ Measurement with FURA-2-FF in Single Permeabilized Ventricular Myocytes of Rat
JeongHoonLee, JeongMiHa, ChaeHunLeem 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2015, Vol.19 No.4 10 373-382 (10 pages)
Fura-2 analogs are ratiometric fluoroprobes that are widely used for the quantitative measurement of [Ca2+]. However, the dye usage is intrinsically limited, as the dyes require ultraviolet (UV) excitation, which can also generate great interference, mainly from nicotinamide adenine dinucleotide (NADH) autofluorescence. Specifically, this limitation causes serious problems for the quantitative measurement of mitochondrial [Ca2+], as no available ratiometric dyes are excited in the visible range.... -
Effects of α1-Adrenergic Receptor Stimulation on Intracellular Na+ Activity and Twitch Force in Guinea-Pig Ventricular Muscles
Chae, Soo-Wan, Gong, Q.Y., Wang, D.Y., Lee, Chin-O. 대한생리학회 대한생리학회지 14 Pages
대한생리학회 대한생리학회지 1995, 제 29권 제 2호 2 203-216 (14 pages)
The effects of α1-adrenergic receptor stimulation on membrane potential, intracellular Na+ activity, and twitch force were investigated in ventricular muscles from guinea-pig hearts. Action potentials, intracellular Na+ activity, and twitch force of ventricular papillary muscles were measured simultaneously under various experimental conditions. Stimulation of the α1-adrenergic receptor by phenylephrine produced variable changes in action potential duration, a slight hyperpolarization of the... -
Physiological and Biochemical Changes in Lucerne (Medicago sativa) Plants Infected with ‘Candidatus Phytoplasma australasia’-Related Strain (16SrII-D Subgroup)
H?meyra Ayvacı, M. Ertu?rul G?ld?r, Murat Dikilitas 한국식물병리학회 The Plant Pathology Journal 13 Pages
한국식물병리학회 The Plant Pathology Journal 2022, 38권 2호 7 146-158 (13 pages)
Changes in physiological and biochemical patterns in lucerne plants caused by the presence of ‘Candidatus Phytoplasma australasia’, which is one of the significant pathogens causing yield losses in lucerne plants, were investigated. Significant differences were evident in total chlorophyll, chlorophyll a, chlorophyll b, and protein amounts between ‘Ca. Phytoplasma australasia’- positive and negative lucerne plants. Stress-related metabolites such as phenol, malondialdehyde, and proline... -
Evaluation of Streptomyces saraciticas as Soil Amendments for Controlling Soil-Borne Plant Pathogens
Pei-Hsuan Wu, Tung-Tsuan Tsay, Peichen Chen 한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 6호 9 596-606 (11 pages)
Soil-borne diseases are the major problems in mono cropping. A mixture (designated LTM-m) composed of agricultural wastes and a beneficial microorganism Streptomyces saraceticus SS31 was used as soil amendments to evaluate its efficacy for managing Rhizoctonia solani and root knot nematode (Meloidogyne incognita). In vitro antagonistic assays revealed that SS31 spore suspensions and culture broths effectively suppressed the growth of R. solani, reduced nematode egg hatching, and increased... -
Inhibitory Activity of Sedum middendorffianum-Derived 4-Hydroxybenzoic Acid and Vanillic Acid on the Type III Secretion System of Pseudomonas syringae pv. tomato DC3000
Ji Eun Kang, Byeong Jun Jeon, Min Young Park, Beom Seok Kim 한국식물병리학회 The Plant Pathology Journal 10 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 6호 8 608-617 (10 pages)
The type III secretion system (T3SS) is a key virulence determinant in the infection process of Pseudomonas syringae pv. tomato DC3000 (Pst DC3000). Pathogen constructs a type III apparatus to translocate effector proteins into host cells, which have various roles in pathogenesis. 4-Hydroxybenozic acid and vanillic acid were identified from root extract of Sedum middendorffianum to have inhibitory effect on promoter activity of hrpA gene encoding the structural protein of the T3SS apparatus. The... -
Comparative Genome Analysis Reveals Natural Variations in the Genomes of Erwinia pyrifoliae, a Black Shoot Blight Pathogen in Apple and Pear
Gyu Min Lee, Seyoung Ko, Eom-Ji Oh, Yu-Rim Song, Donghyuk Kim, Chang-Sik Oh 한국식물병리학회 The Plant Pathology Journal 12 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 5호 5 428-439 (12 pages)
Erwinia pyrifoliae is a Gram-negative bacterial plant pathogen that causes black shoot blight in apple and pear. Although earlier studies reported the genome comparison of Erwinia species, E. pyrifoliae strains for such analysis were isolated in 1996. In 2014, the strain E. pyrifoliae EpK1/15 was newly isolated in the apple tree showing black shoot blight in South Korea. This study aimed to better understand the similarities and differences caused by natural variations at the genomic level... -
Systematic Investigation of the Effects of Macro-elements and Iron on Soybean Plant Response to Fusarium oxysporum Infection
Hongsheng Cai, Nan Tao, Changhong Guo 한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 5호 2 398-405 (8 pages)
Nutrient manipulation is a promising strategy for controlling plant diseases in sustainable agriculture. Although many studies have investigated the relationships between certain elements and plant diseases, few have comprehensively explored how differing mineral nutrition levels might affect plant–fungal pathogen interactions, namely plant susceptibility and resistance. Here, we systematically explored the effects of the seven mineral elements that plants require in the greatest amounts... -
Mixed Infection of Sugarcane Yellow Leaf Virus and Grassy Shoot Phytoplasma in Yellow Leaf Affected Indian Sugarcane Cultivars
Kadirvel Nithya, Balasubramaniam Parameswari, Rasappa Viswanathan 한국식물병리학회 The Plant Pathology Journal 14 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 4호 7 364-377 (14 pages)
Sugarcane is an important sugar crop contributes more than 80% of world sugar production. Mosaic, leaf fleck, and yellow leaf (YL) are the major viral diseases af- fecting sugarcane, amongst YL occurrence is widely reported in all the sugarcane growing countries. It is caused by Sugarcane yellow leaf virus (SCYLV) and detailed works were done on complete genome charac- terization, transmission, and management. However, in countries like Egypt, South Africa, Cuba, Mauritius and Hawaii, the... -
Biological Control of Gom-chwi (Ligularia fischeri) Phytophthora Root Rot with Enterobacter asburiae ObRS-5 to Suppress Zoosporangia Formation and Zoospores Germination
Dayeon Kim, Sang Yeob Lee, Seong Ho Ahn, Ji Hee Han, Jin Woo Park 한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 3호 5 244-254 (11 pages)
Gom-chwi (Ligularia fischeri) is severely infected with Phytophthora drechsleri, the causal organism of Phy- tophthora root rot, an economically important crop disease that needs management throughout the cultiva- tion period. In the present study, Phytophthora root rot was controlled by using bacterial isolates from rhizo- sphere soils collected from various plants and screened for antagonistic activity against P. drechsleri. A total of 172 bacterial strains were isolated, of which, 49 strains...
