• 제목/요약/키워드: S. minor

검색결과 1,355건 처리시간 0.026초

Preparative separation of minor saponins from Panax notoginseng leaves using biotransformation, macroporous resins, and preparative high-performance liquid chromatography

  • Liu, Fang;Ma, Ni;Xia, Fang-Bo;Li, Peng;He, Chengwei;Wu, Zhenqiang;Wan, Jian-Bo
    • Journal of Ginseng Research
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    • 제43권1호
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    • pp.105-115
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    • 2019
  • Background: Ginsenosides with less sugar moieties may exhibit the better adsorptive capacity and more pharmacological activities. Methods: An efficient method for the separation of four minor saponins, including gypenoside XVII, notoginsenoside Fe, ginsenoside Rd2, and notoginsenoside Fd, from Panax notoginseng leaves (PNL) was established using biotransformation, macroporous resins, and subsequent preparative high-performance liquid chromatography. Results: The dried PNL powder was immersed in the distilled water at $50^{\circ}C$ for 30 min for converting the major saponins, ginsenosides Rb1, Rc, Rb2, and Rb3, to minor saponins, gypenoside XVII, notoginsenoside Fe, ginsenoside Rd2, and notoginsenoside Fd, respectively, by the enzymes present in PNL. The adsorption characteristics of these minor saponins on five types of macroporous resins, D-101, DA-201, DM-301, X-5, and S-8, were evaluated and compared. Among them, D-101 was selected due to the best adsorption and desorption properties. Under the optimized conditions, the fraction containing the four target saponins was separated by D-101 resin. Subsequently, the target minor saponins were individually separated and purified by preparative high-performance liquid chromatography with a reversed-phase column. Conclusion: Our study provides a simple and efficient method for the preparation of these four minor saponins from PNL, which will be potential for industrial applications.

우리나라에서 과거 Gymnothorax reticularis로 보고된 나망곰치의 학명 검토 및 재기재 (Review of the Scientific Name and Redescription of the Banded Moray Eel, Previously Reported as Gymnothorax reticularis (Muraenidae, Anguilliformes) in Korea)

  • 김성연;지환성;김진구
    • 한국어류학회지
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    • 제24권4호
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    • pp.292-296
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    • 2012
  • 과거 우리나라에서 Gymnothorax reticularis로 보고되었던 나망곰치를 남해 거제도에서 통발로 채집된 표본 1개체(전장 469.0 mm)에 근거하여 재기재하였다. 본 표본은 19개의 암갈색 수직띠, 139개의 척추골수, 크고 강하며 약간 거친 양턱니, 1개의 간상악골치, 작고 무딘 서골치를 가지는 특징을 보였다. 여러 어류학자들에 의해 한국산 나망곰치는 Gymnothorax reticularis로 보고되어 왔으나 본 연구를 통해 한국산 나망곰치의 학명은 Gymnothorax minor로 변경되어야 한다.

여대생의 라이프 케어 증진을 위한 둥근 어깨 자세의 작은가슴근, 어깨가동성과 목 관절가동범위의 상관연구 (Correlation Between Pectoralis Minor, Shoulder Mobility and Neck Range of Motion on Rounded Shoulder Posture for Life-Care Increase in Women University Student)

  • 서태화;김민선;정연우
    • 한국엔터테인먼트산업학회논문지
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    • 제13권5호
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    • pp.239-246
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    • 2019
  • 본 연구는 여대생의 라이프 케어 증진을 위한 둥근 어깨 자세의 작은가슴근, 어깨 가동성, 목 관절 가동 범위 의 상관관계를 알아보았다. 둥근 어깨 자세를 가진 성인 여성 80명을 대상자로 선정하였다. 대상자가 누운 자세에서 어깨의 높이를 측정하여 둥근 어깨 자세를 측정하였고, 작은가슴근의 길이, 어깨 가동성, 목 관절가동범위를 측정하여 상관분석을 한 결과는 다음과 같다. 오른쪽 둥근 어깨와 목 폄의 상관계수는 -.23(p<0.05)이었다. 오른쪽 작은가슴근 지수와 목 왼쪽 가쪽 굽힘의 상관계수는 -.25(p<0.05)이었고, 오른쪽 작은가슴근 지수와 목 굽힘 상관계수는 -.25(p<0.5)이었다. 왼쪽 어깨 가동성과 목 왼쪽 가쪽 굽힘의 상관계수는 -.23(p<0.05)이었고, 왼쪽 어깨 가동성과 목 오른쪽 돌림의 상관계수는 -.23(p<0.5)이었으며, 왼쪽 어깨 가동성과 목 왼쪽 돌림의 상관계수는 -.25(p<0.05)로 통계학적으로 유의한 음의 상관관계가 있었다(p<0.05). 이상의 결과로 오른쪽의 둥근 어깨가 심할수록 목폄이 감소하였고, 오른쪽 작은가슴근이 단축될수록 목 왼쪽 가쪽 굽힘과 목 굽힘이 감소하였으며, 왼쪽 어깨 가동성이 증가할수록 목 왼쪽 가쪽 굽힘은 감소하였고, 오른쪽 돌림과 왼쪽 돌림이 감소하였음을 알 수 있었다.

Inter-Grain Exchange Interaction and Hysteresis Loops of Melt-Spun $Nd_{13}Fe_{77}B_{10}$

  • J. H. Min;Kim, Y. B.;Park, W. S.;Park, M. J.;Li Tian
    • Journal of Magnetics
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    • 제1권2호
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    • pp.69-74
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    • 1996
  • Justeresos loops of melt-spun Nd13Fe77B10 cooled down at remanent state were measured at 4.2 K and 250 K. The hysteresis loops were analysed on the basis of the Stoner-Wohlfarth (S-W) model, the inter-grain exchange coupled single domain (SD) model and micromagnetism. The coercivity higher than that predicted from the S-W model and the striking shift of the thin minor loop along the H-axix observed at the fields of Hmax=4MA/m at 4.2 K indicated new evidences for the inter-grain exchange interaction . The S-W model failed in explaining the high iHc and the shift of the thin minor loop. The exchange coupled SD model was found to explain the experimental results qualitatively without difficulties associated with the S-W model. The micromagnetic calculations using a finite element technique simulated the experimental results fairly well quntitatively.

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화상처리(畵像處理) 시스템을 이용(利用)한 과일의 기하학적(幾何學的) 특성(特性) 측정(測定) (Measurement of Geometrical Characteristics of Fruit by Image Processing System)

  • 노상하;류관희;김일웅
    • Journal of Biosystems Engineering
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    • 제15권1호
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    • pp.23-32
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    • 1990
  • Geometrical characteristics of fruit including perimeter, projected area and length of minor and major axis were calculated by computer programs to be used in fruit sorting by image processing system. The results are summerized as follows. 1. A program calculating perimeter, projected area, and length of minor and major axis by edge detection and chain code was developed. 2. Geometrical characteristics of given figures were calculated to verify the program and the discrepancies from the measured values were about 5%. 3. Regression models for estimating volums of apples were developed and regression coefficients for each variety were found. 4. Abnormal apples could be recognized by comparing the ratio of minor axis to major axis and the standard value was proposed.

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한국산 해조 3종에 대한 주해 (Notes on Three Marine Algal Species from Korea)

  • 강필준;남기완
    • 수산해양교육연구
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    • 제25권4호
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    • pp.775-780
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    • 2013
  • 한국산 해조 3종, Umbraulva olivascens (P.J.L. Dangeard) G. Furnari, Bryopsis minor Womersley, Sargassum polycystum C. Agardh에 대한 형태학적 및 분류학적 주해가 제시된다. Umbraulva olivascens는 뚜렷한 올리브 체색, 파상형 연변, 엽체의 구멍 및 조하대 서식처에 의해 특징지어진다. Bryopsis minor는 작은 조체, 모든 방향에서 많은 분지, 기부에 잘록함이 없는 선형의 소지, 두드러진 가지 흔적을 결여하는 축, 뚜렷한 중심 피레노이드를 갖는 엽록체, 주축과 비슷한 길이의 가지 및 뚜렷하지 않은 주축을 갖는 것이 특징적이다. Sargassum polycystum은 조체 모든 부분에서 나는 원통형 내지난형의 돌기, 가시가 있는 뚜렷한 중륵을 갖는 전연 내지 다소 거치연의 잎과 드물게 나는 기낭을 갖는 것으로 특징지어진다. 이 3종은 여기서 한국 해조상에 처음 기록된다.

T.T.C 검정방법에 의한 종자의 발아력검정에 관한 연구 (Studies on the Seed's Germinability test by the T.T.C. testing method.)

  • 전우방
    • 아시안잔디학회지
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    • 제2권1호
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    • pp.70-77
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    • 1988
  • In order to determine and to reduce the differences between biochemical test method for the seed viability with T.T.C. (2, 3, 5. Triphenyl tetrazolium Chloride) reagent and germinator method, the topographical diagram of red colored formazan was carried out in 15-16 parts differences. From this resulted information, the classification of the typical staining reaction given for 3 species were derived into 3-4 parts for the germinable in normal seedling, the same as the following results. 1. Corn (Gram inaceae) * Entier embryo stained in bright red color. * Both extremities of scutellum unstained * Both extremities of scuttlium, coleorhiza and non-critial portions of radicle unstained. 2. Soybean (Leguminosae) *Seed completely stained in red color. *Minor unstained areas on cotyledons. *Extreme tip of radicle unstained; minor unstained areas on cotyledons 3. Radish (Cruciferae) *Seed completely stained. *Minor unstained areas on cotyledons. *Outer cotyledon mostly unstained: inner cotyledon completely stained Extreme tip of radicle unstained: large portion of outer cotyledon unstained.

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식물-미생물전기화학 기반의 미활용 에너지 회수 기초 연구 (Basic Study for Harvesting Unused Energy based on Plant-Microbial Electrochemical Technology)

  • 유재철;신춘환
    • 한국환경과학회지
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    • 제28권2호
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    • pp.219-224
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    • 2019
  • In this study, we evaluated the energy production from plant-microbial fuel cells using representative indoor plants, such as Scindapsus aureus and Clatha minor. The maximum power density of microbial fuel cell (MFC) using S. aureus ($3.36mW/m^2$) was about 2 times higher than that of the MFC using C. minor ($1.43mW/m^2$). It was confirmed that energy recovery is possible using plant-MFCs without fuel. However, further research is needed to improve the performance of plant-MFCs. Nevertheless, plant-MFCs have proved their potential as a novel energy source to overcome the limitations of the conventional renewable energy sources such as wind power and solar cells, and could be employed to a power source for the sensor in charge of the fourth industrial revolution.

흉곽출구 증후군의 평가 및 물리치료에 대한 고찰 (A Study for Evaluation and Treatment of Thoracic Outlet Syndrome)

  • 임인혁
    • 대한물리치료과학회지
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    • 제6권2호
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    • pp.943-951
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    • 1999
  • Thoracic outlet syndrome's chief symptom has numbness and tingling sensation of tharm, hand and fingers. In the morning, patient complain of pins and needles of the hands and weakness. TOS classified three categories : Anterior scalene syndrome, Claviculocostal syndrome, Pectoralis minor syndrome Physical therapy of the TOS is heat, massage for soft tissue, stretching exercise for scalene muscles and pectoralis minor muscles, and strengthening exercise for upper trapezius and levator scapular and neck muscles. A main problem of soft tissue is mechanical causes, so physical therapists have to solve that problem by mechanical manual methods.

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Traumatic Hemiparesis Associated with Type III Klippel-Feil Syndrome

  • Park, Jin-Kyu;Huh, Han-Yong;Ryu, Kyeong-Sik;Park, Chun-Kun
    • Journal of Korean Neurosurgical Society
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    • 제42권2호
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    • pp.145-148
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    • 2007
  • Klippel-Feil Syndrome (KFS) is a complex congenital syndrome of osseous and visceral anomalies. It is mainly associated with multi-level cervical spine fusion with hypermobile normal segments. Therefore, a patient with KFS can be at risk of severe neurological symptoms even after a minor trauma. We report a patient with type III KFS who developed a hemiparesis after a minor trauma and was successfully managed with operation.