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동결 건조법을 이용한 옥천산 캡슐 제형 개발에 관한 연구
오명숙,김도림,강지웅,장문석,박선민,고병섭,박성규,Oh, Myung-Sook,Kim, Do-Rim,Kang, Ji-Ung,Chang, Mun-Seog,Park, Sun-Min,Ko, Byoung-Seob,Park, Seong-Kyu 대한한의학방제학회 2005 大韓韓醫學方劑學會誌 Vol.13 No.1
Objective : Okchun-San(OCS) is known as an effective herbal medicine on Type 2 diabetes. We performed to change OCS formulation for freeze drying capsulation. Methods The mixtures of OCS were extracted with water. finally, the filtered solution were evaporated and lyophilized to dry granules. The various ratio of excipients were studied to determine the formation for capsulizing. The samples were inspected for any difference in color, taste and appearance. Results: The prepared form of OCS were dried and weighted 260kg. The lyophilized dry powder yielding 40kg. The suitable ratio of OCS-dry powder and excipient was 10:1. The average weights of On and placebo capsules were $440{\pm}5.28mg$, $465{\pm}7.95mg$, respectively. There was no notable change in color and appearance for both capsuled samples throughout the study period. Conclusions: Therefore in can be concluded that freeze drying capsulation is appropriate form of OCS.
Hydrogen Peroxide에 의해 유도된 남성생식세포의 세포독성에 미치는 소양(銷陽)의 효과
오명숙,김도림,양웅모,장문석,박수연,강순아,박성규,Oh Myung-Sook,Kim Do-Rim,Yang Woong-Mo,Chang Mun-Seog,Park Soo-Yeon,Kang Soon-Ah,Park Seong-Kyu 대한한의학방제학회 2004 大韓韓醫學方劑學會誌 Vol.12 No.2
The purpose of this study is to examine the protective effect of Cynomorii herba on $H_2O_2$-induced cytotoxicity in male germ cells. The effects were studied by a modified MTT assay. Hydrogen peroxide significantly induced cytotoxicity in GC-1 spg cells, and co-treatment or pre-treatment of Cynomorii herba extract has reduced the cytotoxicity in a dose dependant manner. These results suggest that Cynomorii herba extract increases the survival rate of GC-1 spg cells through the antioxidant effect against $H_2O_2$-induced cytotoxicity.
DPPH 방법을 통한 토사자, 보골지(補骨脂), 사상자(蛇床子), 음양곽(淫羊藿)의 항산화 활성에 대한 연구
오명숙,김도림,강지웅,김산웅,유태원,박정열,김동민,박완수,장문석,박수연,박성규,Oh, Myung-Sook,Kim, Do-Rim,Kang, Ji-Ung,Kim, San-Woong,Yu, Tae-Weon,Park, Jung-Yeul,Kim, Dong-Min,Park, Wan-Su,Chang, Mun-Seog,Park, Soo-Yeon,Park, Seong-Ky 대한한의학방제학회 2005 大韓韓醫學方劑學會誌 Vol.13 No.2
The present study was conducted to compare antioxidant activity of Cuscutae Semen, Psoraleae Fructus, Cnidii Fructus and Epimedii Herba by DPPH radical scavenging activity. The extract was studied using diphenyl-picryl-hydrazyl (DPPH) for DPPH method. DPPH radical scavenging activity was measured after. .10, 20 and 30 minutes. The extract was tested by 1, 5, 10, 50, 100, 500 and $1000{\mu}g/ml$ concentrations. The results showed that the extract scavenged DPPH radical with time-dependent manner. Also, the extract showed dose-dependent DPPH radical scavenging activity. The extract of Cuscutae Semen, Psoraleae Fructus, Cnidii Fructus and Epimedii Herba scavenged DPPH radical with the IC50 being 2.7, 3.2, 2.9 and 1.1 mg/ml, respectively. In conclusion, the extract of Epimedii Herba, Cuscutae Semen, Cnidii Fructus and Psoraleae Fructus have antioxidant activity for the treatment of male sterility.
오명숙,이종호,김대환,문정현,임정혁,이도현,김형준,Oh, Myeong-Sook,Lee, Jong-Ho,Kim, Dae-Hwan,Moon, Jeong-Hyun,Yim, Jeong-Hyuk,Lee, Do-Hyun,Kim, Hyeong-Joon 한국재료학회 2009 한국재료학회지 Vol.19 No.1
Silicon carbide (SiC) is a promising material for power device applications due to its wide band gap (3.26 eV for 4H-SiC), high critical electric field and excellent thermal conductivity. The Schottky barrier diode is the representative high-power device that is currently available commercially. A field plate edge-terminated 4H-SiC was fabricated using a lift-off process for opening the Schottky contacts. In this case, Ni/Ti dual-metal contacts were unintentionally formed at the edge of the Schottky contacts and resulted in the degradation of the electrical properties of the diodes. The breakdown voltage and Schottky barrier height (SBH, ${\Phi}_B$) was 107 V and 0.67 eV, respectively. To form homogeneous single-metal Ni/4H-SiC Schottky contacts, a deposition and etching method was employed, and the electrical properties of the diodes were improved. The modified SBDs showed enhanced electrical properties, as witnessed by a breakdown voltage of 635 V, a Schottky barrier height of ${\Phi}_B$=1.48 eV, an ideality factor of n=1.04 (close to one), a forward voltage drop of $V_F$=1.6 V, a specific on resistance of $R_{on}=2.1m{\Omega}-cm^2$ and a power loss of $P_L=79.6Wcm^{-2}$.
오명숙 ( Myung Suk Oh ),조희숙 ( Hea Soog Jo ) 부산대학교 과학교육연구소 2009 교사교육연구 Vol.48 No.1
본 연구는 어머니됨의 경험이 유아교사들의 돌봄에 주는 의미를 탐구한 연구로, 이를 위해 만3세 이하의 자녀를 둔 기혼 유아교사 5명을 대상으로 심충면담과 교사의 저널, 참여 관찰한 후 이를 질적으로 분석하였다. 그 결과 어머니 유아교사들은 첫째, 자녀양육의 경험에서 얻어진 지식을 바탕으로, 유아들의 마음을 자녀처럼 이입하여 읽고 그들의 기쁨과 슬픔에 공감하며 유아를 더 잘 이해하고 포용하는, 어머니의 마음이 담긴 돌봄을 행하고 있었다. 둘째, 자신이 유아교사이면서도 정작 자신의 아이를 돌보지 못함에 미안해하면서 자신이 처한 상황 내에서는 자녀 양육에 최선을 다하려는 모습을 보였다. 셋째, 어머니 유아교사들은 유아들과 함께 있는 자신의 모습에서 내가 누구인가를 발견하고 자신을 한 가치있는 존재로 지각하고 이를 유아 돌봄에 확장시키려고 노력하였다. 마지막으로, 어머니 유아교사들의 모성적 돌봄은 인간을 넘어서 식물, 동물에 대한 염려, 공감, 이해, 배려라는 돌봄의 모습으로 확대되어 나가는 모습을 볼 수 있었다. This study explores the influence of preschool teacher`s own motherhood experiences on their ability to care for their children. The results can be summarized as follows, First, teachers who are also mother benefiting from their own maternal experiences, displayed greater ability to comprehend children, accept them and appreciate their individual qualities, and care for the children with respect and love. Second, mother teachers felt guilty about their efforts towards caring for their own children, and demonstrated their desire to do their best job. Third, Despite the limited resources and difficult work environment, mother teachers, through their interactions with their children, discovered their own identity, achieved a sense of accomplishment, and derived a self-esteem about their life purpose. Fourth, mother teachers, as a result of their child birth and raising experiences, showed greater propensity to understand, apprehend, and care for others. Last, maternal qualities mother teachers derived From their own motherhood allowed them to show a broader concern, empathy, and care for not only human beings but also for plants, animals, and nature in general.
가스화 조건에서 슬래그 성분이 크롬계 내화재 미세구조 변화에 미치는 영향
오명숙(Oh, Myong-Sook),김한봄(Kim, Han-Bom),박우성(Park, Woo-Sung) 한국신재생에너지학회 2007 한국신재생에너지학회 학술대회논문집 Vol.2007 No.11
The inside wall of a coal gasifier is lined with refractory, and the corrosion of the refractory by coal sag is an important parameter affecting the refractory lifetime and the replacement period. This paper examines the changes in microstructure of a chromia refractory due to chemical reactions with penetrating slag as a function of slag composition. The effects of CaO and Fe₂O₃ concentrations were studied using Datong and KIDECO slag. Static corrosion experiments were carried out, the percent slag penetration and changes in the microstructure were determined by SEM/EDX analyses. FactSage equilibrium calculations were carried out to determine the equilibrium products and the predictions were compared with experimental observations.
Thioglycolic acid와 열 펌에 의해 손상된 모발에 관한 연구
오명숙 ( Myung Suk Oh ),장병수 ( Byung Soo Chang ) 대한미용학회(구 대한미용과학회) 2008 대한미용학회지 Vol.4 No.2
We investigated the morphological and physical characteristics of the permanent waving hair treatment with thioglicolic acid, heat for 10 minutes and 20 minutes respectively, using scanning electron microscopy and absorbancy. To find the effective method to cure the damage which hurt by the permanent wave, cold-permanent and heat-permanent wave are conducted by use material mainly include thioglycolic acid. The hair damage by thioglycolic acid and heat-permanent are investigated with using absorbancy. In absorbance test, values of treated cold permanent hair group are higher than heat permanent hair groups, because of swelling by reducing agent, treatments and matrix adsorption with methylene blue. It seems to have a high absorbance because of change of the chemical bond of cell membrane complex in the hair. In the scanning electron microscopy, The surface of hair after treatment with thioglicolic acid was observed to split and damage of scale. The scale on the cuticular Layer of hair began to be separated. The scale of permanent hair surface with heat for 10 minutes was lifted off and some cytoplasm of cuticular cells was broken into pieces. In the permanent hair treatment with heat for 20 minutes. the surface of cuticle was fissured and lifted off. The cell debris attached on the surface of cuticular cell membrane.