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전체 선택해제
총 298건 검색
본문검색 결과만 보기
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Influence of Water Salinity on the Hydraulic Conductivity of Compacted Bentonite
조원진, 김진섭, 최종원, Cho. Won-Jin, Kim. Jin-Seop, Choi. Jong-Won 한국방사성폐기물학회 방사성폐기물학회지 8 Pages
한국방사성폐기물학회 방사성폐기물학회지 2011, Vol.9 No.4 199-206 (8 pages)
다양한 건조밀도를 가진 압축벤토나이트의 수리전도도에 물의 염도가 미치는 영향이 조사되었다. 압축벤토나이트의 수리전도도는 벤토나이트의 건조밀도가 상대적으로 낮은 경우에만, 염도가 증가함에 따라 증가하였으며, 염도의 증가에 따른 수리전도도의 증가 정도는 벤토나이트의 건조밀도가 낮을수록 더 현저하였다. 건조밀도가 1.0 $Mg/m^3$ 및 1.2 $Mg/m^3$ 인 압축벤토나이트의 경우, 0.4 M NaCl 용액의 수리전도도는 탈염수의 경우에 비해 각각 7배 및 3배가 증가하였다. 그러나 1.4 $Mg/m^3$ 보다 큰 건조밀도를 가진... -
Variability of Soil Water Content, Temperature, and Electrical Conductivity in Strawberry and Tomato Greenhouses in Winter
Ryu. Dong-Ki, Ryu. Myong-Jin, Chung. Sun-Ok, Hur. Seung-Oh, Hong. Soon-Jung, Sung. Je-Hoon, Kim. Hak-Hun 한국농업기계학회 바이오시스템공학 8 Pages
한국농업기계학회 바이오시스템공학 2014, Vol.39 No.1 39-46 (8 pages)
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Morphology Effect of Sulfonated Triblock Copolymers for Water Retention and Proton Conductivity at High Temperature
Kang. Sang-Wook, Choi. So-Kon, Hwang. Seung-Sang, Baek. Kyung-Youl, Choi. Hyung-Min 한국고분자학회 Macromolecular research 3 Pages
한국고분자학회 Macromolecular research 2009, Vol.17 No.7 455-457 (3 pages)
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The influence of water characteristics on the aquatic insect and plant assemblage in small irrigation ponds in Civilian Control Zone, Korea
Jae Hyun Kim, Hyun Yong Chung, Seoung Ho Kim, Jae Geun Kim 한국습지학회 한국습지학회지 11 Pages
한국습지학회 한국습지학회지 2016, Vol.18 No.4 1 331-341 (11 pages)
of South Korea: stagnation, exchange-stagnation, spring, stagnation-spring, and exchangespring types. The stagnation type had the most stable water chemistry among the 16 irrigation ponds studied, and the spring type had the most variable water chemistry. Anion content was highest in the stagnation type, and cation content was highest in the exchange-stagnation type. 228 taxa including 63 wetland plants and 95 aquatic insect taxa were recorded. Six rare plant species and four rare aquatic insect... -
Analysis of water quality improvement efficiency using constructed wetland in a coastal reservoir
Jungsun Hong, Marla C. Maniquiz-Redillas, Jong-Hwa Ham, Lee-Hyung Kim 한국습지학회 한국습지학회지 9 Pages
한국습지학회 한국습지학회지 2016, Vol.18 No.3 12 292-300 (9 pages)
Diverse and comprehensive countermeasures were established to prevent water pollution in coastal areas such as constructed wetlands(CW).This study was conducted to assess the water quality improvement through CW constructed along the shoreline of Hwaseong coastal reservoir. The CW is located in Hwaseong-si, Gyeonggi-do and consisted of a forebay and a wetland. The CW was monitored twice during rainy days and 10 times during dry days. The monitoring results indicated that in and out flowrates... -
Nutrient dynamics in montane wetlands, emphasizing the relationship between cellulose decomposition and water chemistry
한국습지학회 한국습지학회지 2005, Vol.7 No.4 1 33-42 (10 pages)
and 6 to 109 ppb, respectively. Concentrations of ammonium, calcium, magnesium, sodium, and potassium in water were the highest in Markleeville, which has been impacted by animal farming. Nitrate and SRP concentrations in water were the highest in Snow Creek, which has been impacted by human residence and a golf course. Cellulose decomposition rates ranged from 4 to 75 % per 90 days and the highest values were measured in Snow Creek. Concentrations of total carbon, nitrogen, and phosphorus in... -
Longitudinal Gradients and Seasonal Dynamics of Nutrients, Organic Matter and Conductivity Along the Main Axis of Han-River
Kim. Bit-Na, Lee. Sang-Jae, Seo. Jin-Won, An. Kwang-Guk 한국하천호수학회 한국하천호수학회지= Korean journal of limnology 9 Pages
한국하천호수학회 한국하천호수학회지= Korean journal of limnology 2008, Vol.41 No.4 457-465 (9 pages)
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Water Transport Characteristics of Paddy Plow Pan Soils as Estimated by Particle Size Distribution Fractal Dimension
한경화, 조현준, 허승오, 하상건, 조희래, 전상호, Han. Kyung-Hwa, Cho. Hyun-Jun, Hur. Seung-Oh, Ha. Sang-Geun, Cho. Hee-Rae, Jeon. Sang-Ho 한국토양비료학회 韓國土壤肥料學會誌 7 Pages
한국토양비료학회 韓國土壤肥料學會誌 2010, Vol.43 No.1 1-7 (7 pages)
본 연구는 논토양 쟁기바닥층을 대상으로 특성을 파악하고 토양입자분포를 프랙탈차원화하여 물이동을 추정하고자 수행하였다. 모내기전 비담수기에 보통논과 사질논 12지점을 각각 선정하였다. 선정지점에서 깊이별 관입경도를 측정하여 쟁기바닥층 출현깊이와 두께를 도출하였다. 표토와 쟁기바닥층에서 토양입자분포, 유기물함량, 산중식 경도를, 쟁기바닥층에서 2인치 코아시료를 채취한 후 변수위법으로 포화수리전도도를 측정하였다. 토양입자분포의 프랙탈 차원화는 측정한 입자분포자료, 0-0.002, 0.002-0.053, 0.053-0.1,... -
Water Content Reflectometer(WCR)을 이용한 매립지반 최종 복토층의 체적 함수비 측정에 관한 연구
김경철, 황규호, 이송, Kim. Kyung-Chul, Hwang. Koou-Ho, Lee. Song 한국지반공학회 韓國地盤工學會論文集 8 Pages
한국지반공학회 韓國地盤工學會論文集 2005, Vol.21 No.6 147-154 (8 pages)
위한 저주파수 WCR(Water Content Reflectometer)의 Calibration 에 관한 것이고, Calibration의 검증은 흙의 전기전도도와 물성치를 이용하여 평가하였다. WCR 주기에 대한 체적함수비의 선형 Calibration은 높은 상관성을 보였다. 흙의 전기전도도가 증가할수록 Calibration의 기울기가 감소하는 것으로 나타났다. Calibration의 기울기는 점토의 함유량, 유기질의 함유량, 액성한계, 소성한계가 높은 흙, 즉, 전기전도도가 전형적으로 높은 흙에서 낮은 값을 보였다. 낮은 주파수영역을 갖는 WCR을 활용하여 좋은 계측결과를 얻을 수... -
EMPIRICAL MODELING OF A POLYMER ELECTROLYTE FUEL CELL BASED ON WATER TRANSPORT INVESTIGATION AND CURRENT INTERRUPT MEASUREMENT
Choi. S., Chu. K., Ryu. J., SunWoo. M. 한국자동차공학회 International journal of automotive technology 14 Pages
한국자동차공학회 International journal of automotive technology 2009, Vol.10 No.6 719-732 (14 pages)
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Evaluating the Soil Salinity of Reclaimed Wastewater Irrigation in Paddy Plots using the Soil-Water-Atmosphere-Plant Model and Water Management Response Indicators
장태일, 황세운, 정한석, 강문성, 박승우, Jang. Tae-Il, Hwang. Sye-Woon, Jeong. Han-Seok, Kang. Moon-Seong, Park. Seung-Woo 한국농공학회 한국농공학회논문집 11 Pages
한국농공학회 한국농공학회논문집 2012, Vol.54 No.2 103-113 (11 pages)
토양염분 변화를 추정하기 위하여 경기도 화성시 수원환경사업소 인근에 위치한 병점지구를 대상으로 수문순환과 작물성장과의 관계를 고려한 SWAP (Soil-Water-Atmosphere-Plant) 모형을 이용하여 평가하였다. 실험에 사용한 관개용수는 지하수 (TR#1), 하수처리장 방류수+여과+UV (TR#3)로 분류하여 모형에 사용하였다. 유입관개수의 EC (Electrical Conductivity)는 지하수 관개수인 TR#1이 다른 처리구에 비해 작았고, TR#3의 경우 0.442~0.698 dS $m^{-1}$의 범위를 보였다. 모형의 보정과 검정을 위해서 대상지구에 FDR (Frequency... -
Heat transfer enhancement and pressure drop analysis in a helically coiled tube using $Al_2O_3$/water nanofluid
Kumar. P.C. Mukesh, Kumar. J., Tamilarasan. R., Nathan. S. Sendhil, Suresh. S. 대한기계학회 Journal of mechanical science and technology 7 Pages
대한기계학회 Journal of mechanical science and technology 2014, Vol.28 No.5 1841-1847 (7 pages)
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Water and oxygen permeation through transparent ethylene vinyl alcohol/(graphene oxide) membranes
Hye Min Kim, Heon Sang Lee 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.1 7 50-56 (7 pages)
were decreased by adding GOs into EVOH, indicating that GOs may inhibit the crystallization of EVOH during non-isothermal crystallization. However, the equilibrium melting temperatures of EVOH were not changed by adding GOs into EVOH. The oxygen permeability of the EVOH/GO (0.3 wt%) film was reduced to 63% of that of pure EVOH film, with 84% light transmittance at 550 nm. The EVOH/GO membranes exhibited 100 times better (water vapor)/(oxygen) selectivity performance than pure EVOH membrane. -
Air-Water 모델에서 기포특성에 관한 실험적 연구
오율권, 서동표 한국안전학회 산업안전학회지 5 Pages
한국안전학회 산업안전학회지 2003, Vol.18 No.1 14-18 (5 pages)
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토양을 활용한 고대 농경 복원
이희진 한국고고학회 한국고고학전국대회 발표문 14 Pages
한국고고학회 한국고고학전국대회 발표문 제36회 한국고고학대회 5 91-104 (14 pages)
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Framework of Characterizing Scientific Claims of Elementary Pre-service Teachers in Their Science Journals
Shin Myeong-Kyeong 경인교육대학교 교육연구원 The Journal of Education 10 Pages
경인교육대학교 교육연구원 The Journal of Education 2019, Vol.2 No.1 2 15-24 (10 pages)
This study aims to explore elementary pre-service teachers’ understanding of science practice in terms of claims in their science journals. Pre-service teachers took a science inquiry course and worked with self-directed inquiry by using Korean science elementary textbook. After inquiry activities, they provided science journals including their test question, data and claims on their inquiry. In order to characterize scientific claims, quality of question, data representation mode, claims were... -
Polysaccharides isolated from Phellinus gilvus enhances dermal wound healing in streptozotocin-induced diabetic rats
Jae-Sung Bae, Kwang-Ho Jang, Hee-Kyung Jin 대한수의학회 Journal of Veterinary Science 4 Pages
대한수의학회 Journal of Veterinary Science 2005, 제 6권 제 2호 12 161-164 (4 pages)
Dermal wound healing is a complex process that involved inflammation leading to re-epithelialization, granulation tissue, and tissue remodeling. Previous studies from our laboratory have shown that polysaccharides isolated from fungus, Phellinus gilvus (PG) have various anti-inflammatory activities. In present study, we have assessed the effect of polysaccharides from PG on the dermal wound healing of polysaccharides from PG in streptozotocin-induced diabetic rat model. Six of 6-mm circular... -
소금 섭취량을 달리한 정상 및 고혈압쥐에서 Atrial Natriuretic Peptide가 혈압, Renin-Aldosterone 및 신배설에 미치는 영향
전제량(Juhn, Jae-Ryang), 이원정(Lee, Won-Jung), 박재식(Park, Jae-Sik), 주영은(Choo, Young-Eun) 대한생리학회 대한생리학회지 12 Pages
대한생리학회 대한생리학회지 1990, 제 24권 제 2호 7 319-330 (12 pages)
장기적으로 소금 섭취량을 달리 한 정상 및 고혈압쥐에서 atrial natriurectic peptide (ANP) 가 혈압, renin-aldosterone 및 신배설에 미치는 효과를 비교하였다. 생후 6주된 spontaneously hyper-tensive rate (SHR)와 Wistar 숫쥐를 각각 저염, 정상염 및 고염 (2, 10, 25 mmol NaCl/100g diet) 군으로 나누어 실험 식이를 6주동안 먹었다. 실험 당일 아침에 쥐를 ether로 마취시킨 상태에서 대퇴 동맥과 정맥 및 방광에 catheter를 삽입한 다음에 쥐를 restraining cage에 넣어 고정시켰다. 마취가 깨고 혈압이 안정된 후에... -
Effect of Bacillus mesonae H20-5 Treatment on Rhizospheric Bacterial Community of Tomato Plants under Salinity Stress
Shin Ae Lee, Hyeon Su Kim, Mee Kyung Sang, Jaekyeong Song, Hang-Yeon Weon 한국식물병리학회 The Plant Pathology Journal 10 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 6호 15 662-671 (10 pages)
Plant growth-promoting bacteria improve plant growth under abiotic stress conditions. However, their effects on microbial succession in the rhizosphere are poorly understood. In this study, the inoculants of Bacillus mesonae strain H20-5 were administered to tomato plants grown in soils with different salinity levels (EC of 2, 4, and 6 dS/m). The bacterial communities in the bulk and rhizosphere soils were examined 14 days after H20-5 treatment using Illumina MiSeq sequencing of the bacterial... -
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)
cause mortality to the root knot nematode eggs and juveniles. Pot and greenhouse tests showed that application of 0.08% LTM-m could achieve a great reduction of both diseases and significantly increase plant fresh weight. Greenhouse trials revealed that application of LTM- m could change soil properties, including soil pH value, electric conductivity, and soil organic matter. Our re- sults indicate that application of LTM-m bio-organic amendments could effectively manage soil-borne pathogens. -
Role of Trehalose Synthesis in Ralstonia syzygii subsp. indonesiensis PW1001 in Inducing Hypersensitive Response on Eggplant (Solanum melongena cv. Senryo-nigou)
Nur Laili, Takafumi Mukaihara, Hidenori Matsui, Mikihiro Yamamoto, Yoshiteru Noutoshi, Kazuhiro Toyoda, Yuki Ichinose 한국식물병리학회 The Plant Pathology Journal 14 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 6호 7 566-579 (14 pages)
Ralstonia syzygii subsp. indonesiensis (Rsi, former name: Ralstonia solanacearum phylotype IV) PW1001, a causal agent of potato wilt disease, induces hypersen- sitive response (HR) on its non-host eggplant (Solanum melongena cv. Senryo-nigou). The disaccharide treha- lose is involved in abiotic and biotic stress tolerance in many organisms. We found that trehalose is required for eliciting HR on eggplant by plant pathogen Rsi PW1001. In R. solanacearum, it is known that the OtsA/ OtsB pathway is... -
Characterization of Virulence Function of Pseudomonas cichorii Avirulence Protein E1 (AvrE1) during Host Plant Infection
Duyen Do Tran Huong, Nagendran Rajalingam, Yong Hoon Lee 한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 5호 9 494-501 (8 pages)
by reducing water soaking during early infection stage, as evidenced by the electrolyte leakage in infected leaves. The disease symptoms caused by JBC1ΔavrE1 in the cabbage midrib were light-brown spots compared to the dark-colored ones caused by PcJBC1, which indicates the role of AvrE1 in cell lysis. The avrE1-deficient mutant failed to elicit cell death in non-host tobacco plants. Disease severity and cell death caused by JBC1ΔavrE1 in host and non-host plants were restored through... -
Field Sanitation and Foliar Application of Streptomyces padanus PMS-702 for the Control of Rice Sheath Blight
Chia-Jung Yang, Tzu-Pi Huang, Jenn-Wen Huang 한국식물병리학회 The Plant Pathology Journal 15 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 1호 5 57-71 (15 pages)
Rice sheath blight (ShB), caused by Rhizoctonia solani Kühn AG1-IA, is one of the destructive rice diseases worldwide. The aims of this study were to develop bio- control strategies focusing on field sanitation and foliar application with a biocontrol agent for ShB manage- ment. Streptomyces padanus PMS-702 showed a great antagonistic activity against R. solani. Fungichromin produced by S. padanus PMS-702, at 3.07 mg/l inhib- ited 50% mycelial growth, caused leakage of cytoplasm, and... -
Ralstonia solanacearum Type III Effectors with Predicted Nuclear Localization Signal Localize to Various Cell Compartments and Modulate Immune Responses in Nicotiana spp.
Hyelim Jeon, Wanhui Kim, Boyoung Kim, Sookyeong Lee, Jay Jayaraman, Gayoung Jung, Sera Choi, Kee Hoon Sohn, C?cile Segonzac 한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 1호 4 43-53 (11 pages)
Ralstonia solanacearum (Rso) is a causal agent of bacterial wilt in Solanaceae crops worldwide including Republic of Korea. Rso virulence predominantly relies on type III secreted effectors (T3Es). However, only a handful of Rso T3Es have been characterized. In this study, we investigated subcellular localization of and manipulation of plant immunity by 8 Rso T3Es predicted to harbor a nuclear localization signal (NLS). While 2 of these T3Es elicited cell death in both Nicotiana benthamiana and... -
Biogenic Volatile Compounds for Plant Disease Diagnosis and Health Improvement
Rouhallah Sharifi, Choong-Min Ryu 한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2018, 34권 6호 1 459-469 (11 pages)
Plants and microorganisms (microbes) use information from chemicals such as volatile compounds to understand their environments. Proficiency in sensing and responding to these infochemicals increases an organism’s ecological competence and ability to survive in competitive environments, particularly with regard to plant-pathogen interactions. Plants and microbes acquired the ability to sense and respond to biogenic volatiles during their evolutionary history. However, these signals can only be... -
Localization of Barley yellow dwarf virus Movement Protein Modulating Programmed Cell Death in Nicotiana benthamiana
한국식물병리학회 The Plant Pathology Journal 13 Pages
한국식물병리학회 The Plant Pathology Journal 2017, 33권 1호 6 53-65 (13 pages)
Barley yellow dwarf virus (BYDV) belongs to Luteovirus and is limited only at phloem related tissues. An open reading frame (ORF) 4 of BYDV codes for the movement protein (MP) of BYDV gating plasmodesmata (PD) to facilitate virus movement. Like other Luteoviruses, ORF 4 of BYDV is embedded in the ORF3 but expressed from the different reading frame in leaky scanning manner. Although MP is a very important protein for systemic infection of BYDV, there was a little information. In this study, MP... -
Effect of Aerated Compost Tea on the Growth Promotion of Lettuce, Soybean, and Sweet Corn in Organic Cultivation
한국식물병리학회 The Plant Pathology Journal 10 Pages
한국식물병리학회 The Plant Pathology Journal 2015, 31권 3호 7 259-268 (10 pages)
This study investigated the chemical characteristics and microbial population during incubation of four kinds of aerated compost teas based on oriental medicinal herbs compost, vermicompost, rice straw compost, and mixtures of three composts (MOVR). It aimed to determine the effects of the aerated compost tea (ACT) based on MOVR on the growth promotion of red leaf lettuce, soybean and sweet corn. Findings showed that the pH level and EC of the compost tea slightly increased based on the... -
Effects of Heavy Metal Contamination from an Abandoned Mine on Tomato Growth and Root-knot Nematode Development
한국식물병리학회 The Plant Pathology Journal 6 Pages
한국식물병리학회 The Plant Pathology Journal 2011, 27권 3호 8 266-271 (6 pages)
plants, and non-parasitic nematode populations in soil were also examined. Growth of tomato plants, root-knot gall formation, and non-parasitic nematode populations were significantly reduced in CS with higher As content, lower pH, higher electrical conductivity (EC), and lower available phosphate (av. P2O5) than in NS. None of the other physicochemical characters examined differed significantly between CS and NS (low and no significance) and were above or below the critical levels detrimental t... -
Ecological Factors Influencing Severity of Cashew Fusarium Wilt Disease in Tanzania
Stanslaus A. Lilai, Fortunus A. Kapinga, Wilson A. Nene, William V. Mbasa, Donatha D. Tibuhwa 한국식물병리학회 식물병연구 12 Pages
한국식물병리학회 식물병연구 2021, 27권 2호 1 49-60 (12 pages)
Cashew (Anacardium occidentale L.) is an important cash crop in Tanzania as a source of income to cashew growers and provides foreign exchange for the country. Despite its significance, the crop is threatened by fast spreading disease known as cashew Fusarium wilt caused by Fusarium oxysporum. Field assessment and laboratory tests were conducted to determine incidences of the disease, severity, ecological factors that influence them and explored the pathogen host specificity in six cashew... -
The Power of Being Small: Nanosized Products for Agriculture
한국식물병리학회 식물병연구 2018, 24권 2호 2 99-112 (14 pages)
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식물체에서 물의 수송에 대한 비유 학습
이복선 공주교육대학교 초등교육연구원 교육논총 10 Pages
공주교육대학교 초등교육연구원 교육논총 49권1호 3 41-50 (10 pages)
식물체에서 물의 순환은 살아있는 세포들의 에너지 대사로서 유지되고 있다. 광합성 산물에서 생성된 당은 체관의 삼투압을 조절하여 당의 분배 기능뿐만 아니라 물의 순환을 조절하는 역할도 한다. 증산이 과도할 경우 물관은 색전현상으로 더 이상의 물이 이동되지 않도록 하며, 체관은 역삼투 현상인 마중물을 분비하여 물관의 기능을 회복시킨다. 이러한 순환작용을 동물에서의 순환과 비유하여 체관은 동맥으로 물관은 정맥으로 관련지어서 에너지가 필요한 과정으로 보았 다. 기존의 이론은 물관이 단순히 물리적인 현상으로... -
생물체에서 물의 이동은 삼투와 역삼투의 과정으로 설명될 수 있다. 식물체에서는 도관에서 물의 상승과 색전 현상의 회복 과정을 이해할 수 있도록 물리적, 삼투적, 생물적 힘으로 구분하여 보았다. 도관의 색전 회복은 삼투(음압)와 역삼투(양압)에 의한 유조직의 작용으로 비교하였고 일주 리듬이나 계절 변화를 근압과 줄기압으로 설명하고자 하였다. 도관과 체관의 상호 작용에서 종적인 도관의 색전은 역삼투로 해소되고, 횡단면은 삼투적으로 물이 다시 체관으로 전달되는 순환으로 계단상의 단거리 순환 모형을 고안하였다....
