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신동열(Dong Yul Shin),김경태(Kyung Tai Kim),황윤영(Youn Yeung Hwang),홍은경(Eun Kyung Hong),김동훈(Dong Hun Kim) 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.2
Patau syndrome, or Trisomy 13 is one of the most common autosomal aberration associtated with multiple congenital abnormalities. We report a case with trisomy 13 mosacism which was found during an amniocentesis performed due to the age of the mother and abnormal nuchal translucency. The clinical features of fetus included cleft lip and palate, low set ears, polydactily, small micro penis, and Rocker-bottom feet. After termination of the pregnancy, the fetus was sent for an autopsy. The autopsy report was compatible with the gross findings and pulmonary hypoplasia, microophthalmia, hypoplasia of left ventricle of heart were found.
박문일(Moon Il Park),신동열(Dong Yul Shin),배종운(Jong Woon Bae),김현희(Hyun Hee Kim),정성로(Sung Ro Chung),김경헌(Kyoung Hun Kim),문수지(Soo Jee Moon) 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.2
Recently, water birth - labor and/or delivery under warm water - is acceptable and natural to many foreign countries as a method of gentle birth. Although some limitations after water birth were reported, a recent international conference explored many of the issuses and indicated the potential scale and the advantages for its inclusion among the options for labor and delivery under water. We experienced a case of water birth who underwent labor and delivery under water. She delivered normal healthy female baby without conventional episiotomy. No obstetrical ans fetal complications were observed during entire procedure of water birth. So, we report this case with brief review of the literatures.
LSM이 코팅된 고체산화물 연료전지용 Crofer Mesh 집전체 개발
백주열,박석주,이승복,이종원,임탁형,송락현,김광범,신동열,Baek, Joo-Yul,Park, Seok-Joo,Lee, Seung-Bok,Lee, Jong-Won,Lim, Tak-Hyoung,Song, Rak-Hyun,Kim, Kwang-Bum,Shin, Dong-Ryul 한국전기화학회 2010 한국전기화학회지 Vol.13 No.4
A Crofer 22 APU mesh coated with a conductive ceramic material was developed as an alternative cathode current collector to Ag-based materials for solid oxide fuel cells. $(La_{0.80}Sr_{0.20})_{0.98}MnO_3$ (LSM) layer was deposited onto the Crofer mesh using a spray-coating technique, in an attempt to mitigate the degradation of electrical properties due to surface oxidation at high temperatures. The oxidation experiments at $800^{\circ}C$ in air indicated that the areaspecific resistance (ASR) of the LSM-coated Crofer mesh was strongly dependent on the wire diameter and the contact morphology between mesh and cell. In addition, the post-heat-treatment in $H_2/N_2$ resulted in a reduced thickness of Cr-containing oxide scales at the interface between Crofer mesh and LSM layer, leading to a decreased ASR. 본 연구에서는 고체산화물 연료전지의 공기극 집전체로 사용되고 있는 고가의 Ag 소재를 대체하고자 전도성 세라믹이 코팅된 mesh 형태의 Crofer 22 APU 집전체를 개발하였다. 고전자전도성의 $(La_{0.80}Sr_{0.20})_{0.98}MnO_3$ (LSM)을 습식 스프레이법으로 코팅하여 고온 산화 및 전기적 특성의 열화를 억제하고자 하였다. $800^{\circ}C$의 산화 실험 결과에 의하면 LSM이 코팅된 Crofer mesh의 면저항(area-specific resistance)은 mesh의 제작에 사용된 와이어 지름과 접촉 부위의 형상등 실제 접촉점의 수 및 면적을 좌우하는 mesh의 특성에 의해 좌우되었다. 또한 LSM 코팅 후 $H_2/N_2$ 분위기에서의 열처리를 통해 Crofer mesh와 LSM 코팅층 계면에서의 Cr 함유 산화물의 형성을 효과적으로 억제하여 전기적 특성의 열화를 억제할 수 있다.