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Lee, Jiwon M,Ahn, Yo Han,Kang, Hee Gyung,Ha, I I Soo,Lee, Kyoungbun,Moon, Kyung Chul,Lee, Joo Hoon,Park, Young Seo,Cho, Yong Mee,Bae, Jun-Seok,Kim, Nayoung K D,Park, Woong-Yang,Cheong, Hae Ii Springer International 2015 Pediatric nephrology Vol.30 No.9
<P>Nephronophthisis 13 (NPHP 13) is associated with mutations in the WDR19 gene, which encodes for a protein in the intraflagellar transport complex. Herein, we describe six additional cases accompanied by Caroli syndrome or disease.</P>
초음파 분무 열분해법을 이용한 NiCrAl 합금 폼에 코팅된 불소 도핑된 주석 산화물의 영향
신동요,배주원,구본율,안효진,Shin, Dong-Yo,Bae, Ju-Won,Koo, Bon-Ryul,Ahn, Hyo-Jin 한국재료학회 2017 한국재료학회지 Vol.27 No.7
Fluorine-doped tin oxide (FTO) coated NiCrAl alloy foam is fabricated using ultrasonic spray pyrolysis deposition (USPD). To confirm the influence of the FTO layer on the NiCrAl alloy foam, we investigated the structural, chemical, and morphological properties and chemical resistance by using USPD to adjust the FTO coating time (12, 18, and 24 min). As a result, when an FTO layer was coated for 24 min on NiCrAl alloy foam, it was found to have an enhanced chemical resistance compared to those of the other samples. This improvement in the chemical resistance of using USPD NiAlCr alloy foam can be the result of the existence of an FTO layer, which can act as a protection layer between the NiAlCr alloy foam and the electrolyte and also the result of the increased thickness of the FTO layer, which enhances the diffusion length of the metal ion.
조경진(Kyungjin Cho),김성탁(Seongtak Kim),배수현(Soohyun Bae),정태원(Taewon Chung),이상원(Sang-won Lee),이경동(Kyung Dong Lee),이승훈(Seunghun Lee),권구한(Guhan Kwon),안세원(Seh-Won Ahn),이헌민(Heon-Min Lee),고민재(Min Jae Ko),강윤묵(Yo 한국태양광발전학회 2016 Current Photovoltaic Research Vol.4 No.2
The power conversion efficiency of perovskite solar cells has remarkably increased from 3.81% to 22.1% in the past 6 years. Perovskite solar cells, which are based on the perovskite crystal structure, are fabricated using organic-inorganic hybrid materials. The advantages of these solar cells are their low cost and simple fabrication procedure. Also, they have a band gap of about 1.6 eV and effectively absorb light in the visible region. For the commercialization of perovskite solar cells in the field of photovoltaics, the issue of their long term stability cannot be overlooked. Although the development of perovskite solar cells is unprecedented, their main drawback is the degradation of the perovskite structure by moisture. This degradation is accelerated by exposure to UV light, temperature, and external bias. This paper reviews the aforesaid reasons for perovskite solar cell degradation. We also discuss the research directions that can lead to the development of perovskite solar cells with high stability.
(Sang Ah Chang),(Bong Yun Cha),(Soon Jib Yoo),(Yo Bae Ahn),(Ki Ho Song),(Je Ho Han),(Jong Min Lee),(Hyun Sik Son),(Kun Ho Yoon),(Moo Il Kang),(Kwang Woo Lee),(Ho Young Son),(Sung Ku Kang) 대한내과학회 2001 The Korean Journal of Internal Medicine Vol.16 No.2
N/A Background : It has been reported that many peripheral vasodilating drugs might improve insulin resistance. Cilostazol, a antithrombotic agent, increases peripheral blood flow in non-insulin dependent diabetic patients. The effect of cilostazol treatment on insulin resistance in streptozotocin (STZ)-induced non-insulin dependent diabetic Wistar rats was examined. Methods : About a half of two-day old neonate siblings were injected intraperitoneally with STZ and maintained for six months, at which time they were compared with age-matched control rats for intraperitoneal glucose tolerance test (IPGTT) and for glucose infusion rate (GINF) in a euglycemic hyperinsulinemic glucose-clamp study. After that, these studies were also performed after feeding rat chow containing cilostazol (100 mg/kg/day) to rats with STZ-induced non-insulin dependent diabetes mellitus for four-weeks and compared with those of age-matched control rats. Results : In the intraperitoneal glucose tolerance test studies, plasma glucose levels of STZ-induced non-insulin dependent diabetic rats were significantly higher and plasma insulin levels significantly lower than those of age-matched control rats in the age of six months. Glucose infusion rate was lower in STZ-induced non-insulin dependent diabetic rats than those of age-matched control rats. However, after a four-week cilostazol treatment, glucose infusion rate of STZ-induced non-insulin dependent diabetic rats was not significantly different from that of control rats. Conclusion : These findings suggested that cilostazol may improve insulin resistance in STZ-induced non-insulin dependent diabetic rats.