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고혈압(高血壓) 뇌졸중(腦卒中) 환자(患者)에 대한 사혈(瀉血)의 강압효과(降壓效果)
문장혁,안호진,정동화,윤형선,장재원,김경선,문익렬,백종엽,이상무,Mon, Jang-hyuk,Ahn, Ho-jin,Jeong, Dong-hwa,Yoon, Hyung-sun,Jang, Jae-won,Kim, Kyung-sun,Moon, Ik-ryoul,Baek, Jong-yeob,Lee, Sang-moo 대한침구의학회 2003 대한침구의학회지 Vol.20 No.2
Objective : The aim of this research was to investigate the depressive effect of depletion of B15(心兪), B23(腎兪), L5(尺澤), B40(委中) in hypertentive stroke patients. Methods : Depletion on B15(心兪), B23(腎兪), L5(尺澤), B40(委中) in hypertentive stroke patient who were admitted in Dong-Seo Oriental Medical Hospital every other day form 4 weeks, without western antihypertensive drug. Results : After treatment in 2nd week, depletion on B15(心兪), B23(腎兪), L5(尺澤), B40(委中) without western antihypertensive drug increased the systolic and diastolic blood pressure. After treatment in 4th week, depletion on B15(心兪), B23(腎兪), L5(尺澤), B40(委中) without western antihypertensive drug decreased the systolic and diastolic blood pressure. After treatment in 4th week, values of RBC and hemoglobine were not significantly changed. Conclusions : Continous depletion on B15(心兪), B23(腎兪), L5(尺澤), B40(委中) in hypertentive stroke patient without western antihypertensive drug implies decreasement of blood pressure, without change of values of RBC and hemoglobine.
Mesenchymal Stem Cells Prevent Hydrocephalus After Severe Intraventricular Hemorrhage
Ahn, So Yoon,Chang, Yun Sil,Sung, Dong Kyung,Sung, Se In,Yoo, Hye Soo,Lee, Jung Hee,Oh, Won Il,Park, Won Soon Ovid Technologies Wolters Kluwer -American Heart A 2013 Stroke Vol.44 No.2
<P>Severe intraventricular hemorrhage (IVH) in premature infants and the ensuing posthemorrhagic hydrocephalus cause significant mortality and neurological disabilities, and there are currently no effective therapies. This study determined whether intraventricular transplantation of human umbilical cord blood-derived mesenchymal stem cells prevents posthemorrhagic hydrocephalus development and attenuates brain damage after severe IVH in newborn rats.</P>
Dong Yeon Kim,Hyo Jun Ahn,Jong Seon Kim,Ic Pyo Kim,Jeong Hui Kweon,Tae Hyun Nam,Ki Won Kim,Jou Hyeon Ahn,Seong Hyeon Hong 대한금속재료학회 ( 구 대한금속학회 ) 2009 ELECTRONIC MATERIALS LETTERS Vol.5 No.4
The nano-sized cobalt powders were prepared using a pulsed wire evaporation method. The cobalt powder had a spherical shape with a diameter of less than 200 nm. A cobalt electrode was prepared from the nano-sized cobalt powder, acetylene black and polyvinylidene fluoride. During the first discharge, the Li/Co cell showed a plateau potential of 0.7V and a capacity of 440mAh/g. The nano-sized Co electrode had a stable reversible lithium storage capacity of approximately 280mAh g-1 after 30 cycles.
Fenestration of liver cysts in polycystic liver disease to improve quality of life
Dong-Hwan Jung,Shin Hwang,Chul-Soo Ahn,Deok-Bog Moon,Gi-Won Song,Ki-Hun Kim,Tae-Yong Ha,Gil-Chun Park,Sung-Gyu Lee 한국간담췌외과학회 2015 한국간담췌외과학회지 Vol.19 No.1
Polycystic liver disease (PCLD) is characterized by a large number of liver cysts scattered throughout the liver parenchyma. We herein intend to present the beneficial effect of palliative fenestration treatment on quality of life in a patient with symptomatic PCLD. A 48-year-old female patient had been followed up for 5 years for both polycystic liver and kidney diseases at another institution. During follow-up for last 1 year, we recognized that she had barely maintained her ability of function in daily activities due to progressive worsening of fatigue and dyspnea on exertion. The patient finally underwent surgical fenestration treatment. Multiple cysts in the enlarged liver were opened and the cyst walls were excised with electrocautery. No surgical complication occurred and the patient was discharged 10 days after the open fenestration surgery. The total liver volume was 3,870 ml before surgery and 3,125 ml at 1 week after surgery, showing a volume reduction of 19.3%. After surgery, her performance status improved significantly. In the present case, significant improvement in quality of life and daily activity performance was achieved after open fenestration treatment over 18 months of follow-up without disease recurrence.
Ahn, Sung Hoon,Chi, Won Seok,Kim, Dong Jun,Heo, Sung Yeon,Kim, Jong Hak WILEY‐VCH Verlag 2013 Advanced Functional Materials Vol.23 No.31
<P>A solid-state dye-sensitized solar cell (ssDSSC) with 7.4% efficiency at 100 mW/cm(2) is reported. This efficiency is one of the highest observed for N719 dye. High performance is achieved via a honeycomb-like, organized mesoporous TiO2 photoanode with dual pores, high porosity, good interconnectivity, and excellent light scattering properties. The TiO2 photoanodes are prepared without any TiCl4 treatment via a one-step, direct self-assembly of hydrophilically preformed TiO2 nanocrystals and poly(vinyl chloride)-g-poly(oxyethylene methacrylate) (PVC-g-POEM) graft copolymer as a titania source and a structure-directing agent, respectively. Upon controlling the secondary forces between the polymer/TiO2 hybrid and the solvent by varying the amounts of HCl/H2O mixture or toluene, honeycomb-like structures are generated to improve light scattering properties. Such multifunctional nanostructures with dual pores provide good pore-filling of solid polymer electrolyte with large volume, enhanced light harvesting and reduced charge recombination, as confirmed by reflectance spectroscopy, incident photon-to-electron conversion efficiency (IPCE), and electrochemical impedance spectroscopy (EIS) analysis.</P>
Progress of Functional Components Design and Analysis of a Korean HCCR TBM in ITER
Dong-Won Lee,Hyung Gon Jin,Kyu In Shin,Eo Hwak Lee,Suk-Kwon Kim,Jae Sung Yoon,Mu-Young Ahn,Seungyon Cho IEEE 2014 IEEE transactions on plasma science Vol.42 No.5
<P>Korea has developed a helium cooled ceramic reflector (HCCR) test blanket module (TBM) for testing in a ITER, which consists of functional components to distribute the He coolant to each region such as the first wall (FW), breeding zone (BZ), side wall (SW), and back manifold (BM). In this paper, the detailed design of each component is introduced as follows: 1) FW considering cooling under a structural material temperature limit (550 °C); 2) BZ layer for obtaining tritium breeding ratio and cooling with a breeder, reflector, and multiplier pebbles; 3) SW considering the flow distribution to BZ and internal pressure; 4) BM for uniform flow to FW cooling channels; and 5) He purge line in BZ considering a purge gas distribution in BZ. From the performance analysis of each functional component using the CFD code, ANSYS-CFX with the results of nuclear heating from a neutronic analysis, the results show that the design requirements of KO HCCR TBM were satisfied.</P>
Ahn, In-Suk,Park, Young-Goo,Shin, Dong-Ill,Woo, Sahng-Young,Park, Hee-Sung,Park, Jang-Won,Sul, Ill-Whan The Korean Society of Plant Biotechnology 2001 Plant molecular biology and biotechnology research Vol.3 No.3
An Agrobacterium tumefaciens LBA4404 (harboring antisense OMT gene)-mediated transformation method has been developed for poplar (P.nigra x maximowiczii) using prolonging co-cultivation time. Explants on LT (longterm) were induced transgenic calli one month earlier than those from ST (short-term) co-cultivation and remained healthier on LT than ST. With this approach, LT method reduced time to produce transgenic calli. Shoots were successfully regenerated from transgenic calli on SIM (Shoot Induction Medium) and rooted well on the basal medium spontaneously. The presence of antisense OMT gene was verified both by PCR and Southern analysis. Each transgenic poplar was phenotypically indishtinguishable when compared with controls for their growth pattern, leaf morphologies and xylem coloration.