직렬 리액터를 이용한 계통연계형 태양광 발전 시스템

金大均,鄭春炳,全基英,李丞煥,吳鳳煥,李勳九,金容珠,韓慶熙 명지대학교 산업기술연구소 2005 産業技術硏究所論文集 Vol.24 No.-

Since the residential load is an AC load and the output of solar cell is a DC power, the photovoltaic system needs the DC/AC converter to utilize solar cell. In case of driving to interact with utility line, in order to operate at unity power factor, converter must provide the sinusoidal wave current and voltage with same phase of utility line. Since output of solar cell is greatly fluctuated by insolation, it is necessary that the operation of solar cell output in the range of the vicinity of maximum power point. In this paper, DC/AC converter is three phase PWM converter with smoothing reactor. And then, feedforward control used to obtain a superior characteristic for current control and digital PLL circuit used to detect the phase of utility line.

十全大補湯이 抗癌劑를 投與한 생쥐의 胸腺細胞에 미치는 影響

金大根,殷載淳,全薰,宋正模 대한본초학회 1998 大韓本草學會誌 Vol.13 No.2

The purpose of this research was to investigate effects of Sipjeon-Daebo-Tang(SDT) on thymocytes of anti-tumor drugs administered mice. DNA fragmentation, mitochondrial transmembrane potential and subpopulation were tested using a flow cytometry. and the cell viability was tested using a MTT assay. Etoposide, vincristine and doxorubicin enhanced DNA fragmentation and reduced mitochondrial transmembrane potential of thymocytes, but SDT recoverd the action of vincristine and doxorubicin. Etoposide or vincristine decreased the population of CD4 single positive cell in thymocytes, but SDT enhanced the population of CD4+ single positive cell. Etoposide, vincristine and doxorubicin decreased the cell viability of thymocytes, but SDT enhanced the cell viability. These results suggest that SDT has a regulative function of thymocytes in anti-tumor drugs administered mice.

사군자탕이 L1210 세포를 이식한 마우스의 면역세포에 미치는 영향

殷載淳,金大根,柳東和,權鎭,徐龍勳,蘇俊魯,全焄,吳贊鎬 우석대학교 의약품개발연구소 1997 藥學硏究誌 Vol.2 No.-

The purpose of this research was to investigate effects of Sa-Kunja-Tang(SKT) on immune cells of L1210 cell-transplanted mice. The apoptosis and T lymphocytes subopoulation were tested using a flow cytometry, and the proliferation was tested using a MTT assay. Nitric oxide production from mouse peritoneal macrophage was tested using a Griess reagents, and the phagocytic activity of mouse peritoneal macrophage was tested using a lucigenin chemiluminescence. SKT suppressed apoptosis of T-lymphocytes induced by L1210 transplantation. SKT decreased nitric oxide production from mice peritoneal macrophages increased by L1210 transplantation, and the phagocytic activity decreased by L1210 transplantation. These results suggest that SKT suppresses T lymphocyte apoptosis and macrophage activity in L1210 transplanted mice.

사군자탕이 항암제를 투여한 마우스의 면역세포에 미치는 영향

殷載淳,金大根,柳東和,權鎭,洪鍾星,蘇俊魯,全焄,吳贊鎬 우석대학교 의약품개발연구소 1997 藥學硏究誌 Vol.2 No.-

The purpose of this research was to investigate effects of Sa-Kunja-Tang(SKT) on immune cells of antitumor drugs administered mice. The apoptosis and T lymphocytes subpopulation were tested using a flow cytometry, and the proliferation was tested using a MTT assay. The administration of etoposide. vincristine or doxorubicin increased the apoptosis of T-lymphocytes, but the action of doxorubicin was decreased by the administration of SKT. The administration of etoposide or vincristine decreased helper T and cytotoxic T cells population of T lymphocytes, but the action of vincristine was recovered by the administration of SCT. The administration of etoposide, vincristine or doxorubicin decreased the proliferation of T-lymphocytes, but the action of doxorubicin was increased by the administration of SKT. These results suggest that SKT has a regulative function of T-lymphocytes in anti-tumor drugs administered mice.

남성화를 보이는 여성에서 발견된 난소의 Steroid Cell Tumor 1예

조인호,정대훈,박영미,서영진,손영실,정철회,강영미,정수전,김영남,이경복,성문수,김기태 인제대학교 2006 仁濟醫學 Vol.27 No.-

Steroid cell tumor is a rare ovarian sex cord-stromal tumor which accounts for 0.1% of all ovarian tumors. Until now, only 4 cases have been reported in domestic literatures. Steroid cell tumor often secrets testosterone and presents virilization in adult women or precocious puberty in children. Treatment is often performed by surgical removal, adjuvant chemotherapy and radiation, but completely accepted treatment was not existed. We experienced a case of steroid cell tumor, which was manifested by typical virilization in a 43-year old patient, who was previously performed hysterectomy and unilateral oophorectomy. So, we present with a brief review of the literatures.

캔음료중 epichlorohydrin 의분석법에 관한 연구

이광호,곽인신,최재천,전대훈,김형일,강경모,최병희,김귀정,이철원 식품의약품안전청 2001 식품의약품안전청 연보 Vol.5 No.-

캔식품중에 잔류하는 epichlorohydrin을 분석하기 위한 pu링e & trap-Cc/uf통D 분석법을 확립하여 캔의 lacauer 코팅제에서 식품으로 이행되어 잔류하는 epichtorohydfn을 측정하고, 식품유사용매에 의한 용출시험을 통해 일일추정섭취량을 산출하였다. epichlorohydrin의 검량선은 y=0.0006x+0.OO6?(R큰0.9983)의 직선성·라 0.05#ga의 검출한계를 나타내었다. 각종 음료 및 식품유사용매에 일정량의 epichlorohydrin을 첨가한 후 분석하였을 때 회수을은 72~91%였으며, 실제 시판되는 f5건의 캔음료 중 잔류하는 epichlorohydrin을 측정한 결과 모든 캔음료에서 검출한계(0.1#94) 이하였다. 제관업체에서 구입한 modifed epoxy, epoxy phenolic, vinyl organosol, epoxy phenol ester 등의 BADGE(bisphenol A diglycidyt ether)형 에폭시수지로 lacquer 코팅된 식품용 캔에 식품윤사용매인 10% 또는 95% 에탄올을 층L진한 후 90~121'c의 드라이오븐에서 30분~2시간동안 용출시켰을 패 캔의 lacquer 코팅재에서 식품유사용매로 이행되는 epichBorollydirn은 코팅재질, 그리고 가열온도 및 시간에 문관하게 모든 캔에서 검출한계(0.4#ga)이하 였다. 위의 용출결과를 FD.f_의 "Recommendation for Chemistry Data for Indirect Food Additive Petition" 윽 일일추정섭취량 산출법에 적용하여 얻은 epichtorohydrin의 일딜추정 섭 취 량은 0.2r조persorday이하였다. A sensitive ana1?~7tical method based on gas cl)romatogFapy~mass spectrometry with a selected ion monitoring (GE/hfS-Slhf) and the purge-and-trap concentrator ))·asdeveloped for determining ot'epicillorohydrin in canr;ed be)#erages coated with eporl· resin. Thecalibration rurve in the ranre of 0.j ~50nr had'correlation coefficient of 0.9983 and detection limit of 0.Osrga. Recoveries of epichlorohydrin spiked to beverages were in the range of 72 ~91% with detection limits of 0.1 #ga. fn survey of epichlorohydff in twenty commercialcanned beverage samples, epichlorohydrin was not found in all the samples with the detectionlimit of 0.1 r9a. In migration test of various cans coated with BADGE-based coating cans;modifed epoxy, epoxy phenolic, vinyl organosol, epox?· phenol ester were exposed to the foodsimulants of 10% ethanol and 95% ethanol. flfo delectable epichlorohydrin migrated to foodsiHulants was found in aTl the cars with detection Jimit of 0.4 #9/L. Using the miEration data,along uTith the applicstion of food and beverage cans complied with FDA's "Recommendationfor Chemlstry Data f,3r Indirect Food Additive Petition" , the potential dietary exposure toepichlorohydrin was estlmated to be under 0.2rf/person/day.

數 種 韓藥의 아세틸콜린에스터레이즈 酵素活性에 대한 효과

최재환,김미영,김현미,최훈,전훈,김대근,임종필,임강현 대한본초학회 2002 大韓本草學會誌 Vol.17 No.1

아세틸콜린에스터레이즈(AChE)는 신경조직에 분포하는 효소로 신경전달물질 중 아세틸콜린(ACh)을 분해하는 효소로 시냅스 신호전달체계에 있어 중요한 역할을 하는 효소이다. 현재 알츠하이머병과 치매치료에 사용하는 서양약물은 AChE의 활성을 저해하는 작용기전을 가진다. 목적 : 전통적으로 기억력 감퇴, 치매 등 치료에 사용되어 온 한약의 AChE에 대한 작용을 밝히기 위해 본 실험이 구상되었다. 방법 : 생쥐 대뇌신경세포의 균질 혼합액으로부터 효소의 활성을 Ellman 방법을 개선한 엘리자(ELISA)법을 이용하여 측정하였다. 결과 : 실험결과 天花? 의 6종이 2.5㎎/㎖의 농도에서 우수한 효소활성저해력을 보였고, 50% 효소활성 저해농도(ID_50)를 구한 결과, 天花?의 ID_50은 1.5㎎/㎖이었고, ??? 1.2 ㎎/㎖, ?? 2.0 ㎎/㎖, ??草 1.2 ㎎/㎖, ??? 1.0 ㎎/㎖, ??生 1.7㎎/㎖, 및 大?皮 2.0 ㎎/㎖를 나타내어 忍冬?의 저해력이 가장 우수하였다. 결론 : 치매 및 기억력감퇴 증상을 치료하는 한약의 작용기전 중 AChE 효소활성억제효과는 忍冬? 의 6종에서 나타났으며, 이는 전통적인 한방치료에 과학적인 기초자료를 제공할 것으로 생각한다.

Charcteristics of a New Variety, 'Gonji No.10' in Neolentinus lepideus

Jeon, Dae-Hoon,Jang, Myoung-Jun,Ha, Tai-Moon,Lee, Yun-Hae,Yoo, Young-Bok 한국버섯학회 2013 버섯 Vol.17 No.1

Cultural Characteristics of Grifola frondosa stranis with bottle cultivation

Jeon, Dae-Hoon,Lee, Yun-Hae,Choi, Jong-In,Kim, Jeong-Han,Chi, Jeong-Hyun,Hong, Hye-Jeong,Moon, Ji-Won 한국버섯학회 2014 버섯 Vol.18 No.2

Cultural Characteristics of Grifola frondosa stranis with bottle cultivation

Jeon, Dae-Hoon,Lee, Yun-Hae,Choi, Jong-In,Kim, Jeong-Han,Chi, Jeong-Hyun,Hong, Hye-Jeong,Moon, Ji-Won 한국버섯학회 2014 버섯 Vol.18 No.2

In this study, 43 Collected strains of Grifola frondosa were tested in bottle cultivation. In rate of primordia formation, 10 strains were below 50%, 23 strains were 51~79% and 10 strains were over 80%. In pileus color, almost strains were grayish brown and only one strains were light grayish brown. Ivory and white pileus color were showed 2 strains, respectively. The fresh weight of fruit body per bottle of 25 strains were bellow 69g, that of 16 strains were 70~89g and that of 2 strains were over 90g. We selected 9 strains for parent strains of breeding with useful and various genetic characteristics.