http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
민석원,박은서 순천향대학교 부설 산업기술연구소 2001 순천향 산업기술연구소논문집 Vol.7 No.2
This paper aims at the design of 170 kV GIS conductor surface under a certain specified field condition by using NURB curves. We used 170 kV GIS model as initial shape and selected the reference electric field on the GIS conductor surface as 1.2 kV/min which was middle between average value and maximum value on it. We found the maximum electric field on conductor surface was 1.25kV/min and other parts was converged in 1.2 kV/min when we optimized the total part of 170 kV GIS conductor surface by using two shape variables.
이소말토 올리고당의 첨가가 약과의 품질특성에 미치는 영향
김향숙,서월석,김은겸,이화영 충북대학교 교육 ·생활연구소 생활과학연구센터 2002 생활과학연구논총 Vol.6 No.2
This study was to develope low-calorie Yak-kwa by using oligosaccharides instead of honey. Sensory and instrumental textur properties of Yak-kwa were examined. The calorie of oligosaccharide Yak-kwa was 31% lower than honey Yak-kwa. Color of oligosaccharide Yak-kwa was lighter than that of honey Yak-kwa. Results of nstrumental test of texural proporties showed that hardness increased and cutting decreased as soaking time increased without significant differences between oligosaccharide Yak-kwa and honey Yak-kwa. Accepance test by sensoty panel showed no significant differences between oligosaccharid Yak-kwa and honey Yak-kwa.
이산화탄소수소화 및 MTO반응을 이용한 탄화수소 직접합성에 관한 연구
황종현,서은철,정석진 경희대학교 자연과학종합연구원 1999 자연과학논문집 Vol.5 No.-
지구온난화 현상의 주 원인 물질로 알려진 이산화탄소를 저감 또는 재활용하는 방안으로 촉매화학적 전환방법이 가장 경제적 타당성이 있는 기술로 평가되고 있다. 따라서 본 연구에서는 이산화탄소의 수소화 반응을 통한 methanol합성과 methanol로부터 olefin을 생성시키는 MTO공정의 연계를 통하여 CO_(2)로부터 olefin을 직접제조하고자 하였다. 메탄을 합성용 촉매로 주로 사용되고 있는 구리계 촉매를 대상으로 촉매 제조변수에 따른 메탄을 합성반응의 활성특성에 대한 연구를 수행하였으며, MTO반응에 있어서 최적 촉매계의 선정 및 공정변수에 따른 전환반응의 활성양상을 검토하였다. 또한 메탄올합성반응과 MTO공정의 연계효과와 hybrid 촉매 상에서 1-bed와 2-bed의 활성결과를 상호 비교하였다. The catalytic fixation of CO_(2) has attracted much attention as one of the most promising methods to mitigate global warming effect. Therefore, we wanted to produce directly hydrocarbons by connection CO_(2) hydrogenation with methanol to olefin(MTO) reaction. With copper based catalyst used for hydrogenation of CO_(2), we studied on the activity of methanol synthesis reaction by preparation method and tried to select optimal catalyst system and the activity aspect by process variation is consulted for the MTO reaction. In addition, direct synthesis of hydrocarbons from CO_(2) hydrogenation and MTO rxn. over hybrid catalyst consists of methanol synthesis catalyst(CuO/ZnO/Al2O3) and zeolite(ZSM-5) were investigated.
정필두,김은정,엄민식,서정원,윤석중,김종석,이상철,김원재 충북대학교 의학연구소 2001 忠北醫大學術誌 Vol.11 No.2
연구목적: TNF-α는 일부 종양의 종양화 과정과 관련이 있는 것으로 알려져 있다. 본 연구는 TNF-α 발현에 영향을 미치는 TNF-α 촉진자 -308 부위의 유전적 다형성이 방광암과 관련이 있는지 유무를 알고자 시행하였다. 대상 및 방법: 유전자 분석을 위하여 환자 113명 및 대조군 109명으로부터 혈액을 채취하여 genomic DNA를 분리한 후 PCR-RFLP 및 direct DNA sequencing을 통하여 TNF-α유전자의 다형성을 조사하여 방광암의 발생, 병기 및 분화도와 비교 검토하였다. 결과: TNF-α 촉진자 -308 부위의 유전형은 대조군에서는 GG형이 83.5%(90례 및 GA형이 16.5%(19례)로 관찰되었으며 AA형은 없었다. 환자군에서는 GG 형이 85.4%(97례), GA형 및 AA형은 각각 13.1%(15례)및 0.8%(1례)에서 관찰되었다. 두 군 모두에서 GG형이 가장 많이 나타났으며 다음으로 GA형을 보이고 AA형은 1례의 방광암 환자에서만 관찰되었다. -308부위의 경우도 두 군 사이에 유전자형의 차이는 없었다(p=0.259) 분화도별 분포를 보면 grade I이 20례, grade II가 49례, grade Ⅲ은 34례였고 병기별로 표재성인 경우가 90례였으며 침윤성은 14례였다. 분화도가 나빠질수록 GA형이 증가하였다(p=0.04). 그러나 병기와 TNF-α promoter -308부위의 유전자형 사이에는 유의한 상관 관계가 없었다(p=0.123). 결론: 방광암 환자의 혈액에서 GA genotype이 관찰되는 경우, 분화도가 나쁠 가능성이 매우 높기 때문에 좀 더 적극적인 치료와 세밀한 추적관찰을 함으로써 방광암으로 인한 사망과 암의 진행을 예방할 수 있을 것으로 기대한다. Purpose : Tumor necrosis factor-alpha (TNF-α) is involved in tumorigenesis of several cancers as an endogenous tumor promoter. The purpose of this study was to investigate whether genetic polymorphism of TNF-α promoter region (-308) was associated with human bladder tumor. Materials and Methods: The DNA from 113 and 109 respective blood samples of bladder tumor Patients and control group was analyzed by PCR-based restriction fragment length polymorphism (RFLP) and direct DNA sequencing methods to characterize the genetic polymorphism of -308 promoter region of the TNF-α gene in bladder tumor patients. We compared the association of bladder tumor with genetic Polymorphism of TNF-α promoter region(-308) in relation to the stage, grade, recurrence and progressio. Results : Eighty-six percents(97/113) of bladder tumor patients and 83.5% (90/109) of control group showed genotype GG at -308 region of TNF-α. Difference in genetic variations of TNF-α promoter (-308) did not exist between bladder tumor patients and control group(p=0.259). Tumor grade was significantly related to the GA genotype (p=0.04). The higher is the grade in bladder tumor, the more frequent was the GA genotype. Tumor stage, recurrence and progression were not significantly associated with genetic polymorphism of TNF-α promoter region (-308). Conclusion: The GA genotype of TNF-a promoter region (-308) had a significant impact on TNF-α production and was related to higher grade tumor compared to GG genotype. TNF-α serum levels in bladder tumor patients were significantly higher than controls. These data suggested that TNF-α might involve the tumorigenesis of the bladder rather than treatment or prevention of bladder tumor.
유현아,김은영,서민지,정은,조민정,오현진,장지혜,박지찬,이정의,박석영 이화여자대학교 의과학연구소 2014 EMJ (Ewha medical journal) Vol.37 No.2
Gastric metastasis from breast cancer is rare and only six cases have been reported in Korea. Colon metastasis is more rare than gastric metastasis. We report a 63-year-old woman with gastric and colon metastases of invasive lobular carcinoma of breast. She was diagnosed as right breast cancer, received right modified radical mastectomy 10 years ago and has been treated with chemotherapy and hormone therapy. Investigating for melena and a small caliber of stool, we found gastric and colon metastases. The diagnosis of metastatic breast cancer was made through gross pathologic and immunohistochemistry staining. We report a case with gastric and colon metastases from breast cancer and a review of the associated six case reports in Korea.
박유미,김은아,서명숙 원광대학교 2006 論文集 Vol.37 No.-
This research is aimed to know how educating mass media to children has impacted on child-development by analyzing some data studied through. We suggested some questions for this conducting. First, what is the point issued by early media use to children? Second, How much has the study about children's computer use been done? We have drawn these conclusions. About the first question, early educators had pro and con to the media use and they had focused on popularity and use of new media. And then they have changed their focus to some effects or impacts of new media on child-development. For the second question, in our country as well as other countries, there have been some meaningful effects, a few negative sides and none effects to child-development. On the ground of education, the computer use has been adapted and applied to child-development with proper softwares fitted good topic or intention. Besides, many teachers have tried to have good interactions with their young students. But we are insisting one thing that more chances to make use of computer be given to young students at home and there be more connections between two educational fields- home and school.