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자연산 점몰개, Squalidus multimaculatus Hosoya et Jeon의 새인두흡충, Clinostomum complanatum (Rudolphi, 1814) 감염
박명애 ( Myoung Ae Park ),서정수 ( Jung Soo Seo ),정승희 ( Sung Hee Jung ),최희정 ( Hee Jung Choi ),전은지 ( Eun Ji Jeon ),지보영 ( Bo Young Jee ),이완옥 ( Wan-ok Lee ),우승호 ( Sung Ho Woo ),이은혜 ( Eun Hye Lee ) 한국어병학회 2011 한국어병학회지 Vol.24 No.2
경상북도 영덕군의 하천에 서식하는 점몰개 spotted barbel gudgeon (Squalidus multimaculatus Hosoya et Jeon)의 근육에서 새인두흡충 Clinostomum complanatum (Rudolphi, 1814)의 피낭유충이 발견되었다. 감염된 점몰개는 "yellow grub"인 기생충의 피낭유충으로 인해 표면이 울퉁불퉁하게 보였으며, 수면위에 힘없이 유영하였고 일부 폐사한 개체도 발견되었다. 분리된 탈낭유충의 형태는 혓바닥 모양이었으며, 크기는 2.85~5.89 mm×0.8~1.99 mm였다. 어체당 1~98 개의 피낭유충을 분리하였으며 평균 감염수는 25개로 나타났다. 특히, 성어크기인 평균 7 cm 정도의 점몰개는 100% 감염되어 있었다. 본 연구는 한국의 자연수계에 서식하는 어류에서 C. complanatum 의해 질병이 발생하고 폐사가 일어난 첫 보고이다. The metacercariae of Clinostomum complanatum (Rudolphi, 1814) were isolated in the whole body muscle of wild freshwater fish, spotted barbel gudgeon (Squalidus multimaculatus Hosoya et Jeon) from the local river in Yeongdeok, Gyeongsangbuk-do, Korea. The infected fish with bumpy body surface by "yellow grub" showed erratic swimming behavior and some fish were died. The isolated excysted metacercariae were tongue shaped and 2.85~5.89 mm × 0.8~1.99 mm in size. 1~98 metacercariae were isolated in individual fish and mean infection intensity was 25. All examined adult spotted barbel gudgeon sizing 7 cm in body length were infected. This is the first report of disease outbreak and mortality caused by C. complanatum infection in wild freshwater fish in Korea.
시멘트 킬른 더스트를 사용한 콘크리트의 역학적 특성에 관한 연구
전충근,차천수,차완호,손성운,한천구 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)
This paper is intended to investigate the properties of fresh and hardened concrete, in which cement and fine aggregate are replaced with cement kiln dust(CKD), for effective using method of CKD, a by-product produced in the process of making cement. According to the results, as the replacing ratio of CKD increases, slump and air content of concrete decreases remarkably due to an increase of viscosity and filling of the pores respectively. As the properties of setting, setting time are shortened with an increase of the replacing ratio of CKD. Compressive strength increases due to the filling effect of the pores in comparison with plain concrete, and compressive strength ratio is high at early age.
문전옥,김태완,백기주,김기헌 부산대학교 신약개발연구소 1994 藥學硏究誌 Vol.28 No.1
It was reported that hepatic aldehyde dehydrogenase(ALDH) activity was depressed in alcoholic liver diseases, however there was few report that explain the reason of depressed ALDH activity. We have attempted to correlate the decrease of hepatic ALDH activity with the active oxygen species which generated at elevated rates in the proliferated microsomes by chronic ethanol feeding. The susceptibilities of the hepatic ALDH activity to active oxygen generated by xanthine-xanthine oxidase system and FeSO₄-H₂O₂ system were studied. Incubation of ALDH with 2×10³ xanthine oxidase for 30 min at 25℃ resulted in the decrease of enzyme activity to 60%, and 55% of ALDH activity was retained after exposure to FeSO₄4-H₂O₂ system for 20 min. Alteration in the ALDH activity after administration of ethanol in rat liver was investigated. Whereas the mitochodrial ALDH activity was increased, the microsomal activity was depressed in ethanol-treated rat. Induced microsomal ALDH activity was observed by treatment of phenobarbital or 3-methylcholanthrene in the liver of rats chronically fed alcohol. Since the ALDH catalyses the oxidation of a wide variety of aliphatic and aromatic aldehydes, it is suggested that the alteration in the ALDH activity by various factors including the active oxygen affects the physiological states of liver administrated ethanol chronically, which may in turn to lead to liver disease.
김대규,전완수 圓光大學校 法學硏究所 2006 法學硏究 Vol.22 No.2
When an obligation become insolvent after the fact, the Korean civil law provide that if it is caused by obligor's responsibility, he should take the burden of the debt, but he can be released from the debt if the default is not his own responsibility. In the latter case, meanwhile, it become an issue whether a consideration duty exists or not if the obligation is based on a bilateral contract. Accordingly, it has been settled by the provision of the risk bearing. The claim rights of vicarious compensation mean the creditors' right of recourse on the profit against the obligators when debtors make profits on vicarious compensation of the object to be fulfilled by the same causes which raised the insolvency. The Korean civil law has no provisionn on the claim rights of vicarious compensation, but the rights are expressly provided in substantive enactment of Germany and France. The rights are acknowledges, but the application scopes are different by each country in various cases like above, and the requisites and the effectiveness are as well. Moreover, the meaning of the claim rights of vicarious compensation in legal schemes and the harmonizations of the laws with other civil law systems are different due to the differences in the ways of the transfer of a real right and the principles of risk bearing etc. of the countries. In conclusion, due to the problems in itself as well as possible conflict with existing system and fairness breaking result of the acknowledging the claim right of vicarious compensation, it is reasonable that the Korean civil law should not acknowledge the claim rights of vicarious compensation.
김윤정,전은경,조병식,최수미,이석,민창기,신완식 대한감염학회 2008 감염과 화학요법 Vol.40 No.5
Hematopoietic stem cell transplantation (HSCT) can cause various complications involving lung, liver intestine and other organs, Chemotherapy, radiation therapy, and graft-versus-host disease (GVHD) may injure the cells in the intestinal mucosa of HSCT recipients. Pneumatosis cystoides intestinalis (PI) is a condition that presence of air in the bowel wall is demonstrated by radiologic or pathologic tests, It is one of the infrequent complications after HSCT and is associated with several medical and surgical conditions. However its pathogenesis and definite etiologic factors are still unknown. Here, we present a case of PI in a HSCT recipient, who was diagnosed of bronchiolitis obliterance accompanied with chronic GVHD and pulmonary disease caused by Mycobacterium abscessus.
Jeon, Kyung-Won,Shim, Jae-Oh,Cho, Jae-Wan,Jang, Won-Jun,Na, Hyun-Suk,Kim, Hak-Min,Lee, Yeol-Lim,Jeon, Byong-Hun,Bae, Jong Wook,Roh, Hyun-Seog Elsevier 2019 Fuel Vol.236 No.-
<P><B>Abstract</B></P> <P>Herein, we prepared Pt-, Pd-, and Ru-promoted Ni–Ce<SUB>0.6</SUB>Zr<SUB>0.4</SUB>O<SUB>2</SUB> catalysts with improved oleic acid deoxygenation performance and investigated their physicochemical properties by N<SUB>2</SUB> adsorption-desorption, X-ray diffraction (XRD), NH<SUB>3</SUB> temperature-programmed desorption (NH<SUB>3</SUB>-TPD), and X-ray photoelectron spectroscopy (XPS). Among the above catalysts, the highest oleic acid conversion, C<SUB>9</SUB>–C<SUB>17</SUB> selectivity, and oxygen removal efficiency were observed for Pt/Ni–Ce<SUB>0.6</SUB>Zr<SUB>0.4</SUB>O<SUB>2</SUB>, which was mainly ascribed to its highest surface defect oxygen fraction and acidity.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Pt-, Pd-, and Ru-promoted Ni–Ce<SUB>0.6</SUB>Zr<SUB>0.4</SUB>O<SUB>2</SUB> catalysts (Me/Ni–CZO) were prepared. </LI> <LI> The above catalysts were used for oleic acid deoxygenation to produce biodiesel. </LI> <LI> Pt/Ni–CZO showed the best deoxygenation performance. </LI> <LI> Pt/Ni–CZO exhibited the highest surface defect oxygen fraction and acidity. </LI> </UL> </P>
Jeon, Wan,An, Hyun Joon,Kim, Jung-in,Park, Jong Min,Kim, Hyoungnyoun,Shin, Kyung Hwan,Chie, Eui Kyu The Korean Association for Radiation Protection 2019 방사선방어학회지 Vol.44 No.4
Background: Magnetic resonance (MR) image guided radiation therapy system, enables real time MR guided radiotherapy (RT) without additional radiation exposure to patients during treatment. However, MR image lacks electron density information required for dose calculation. Image fusion algorithm with deformable registration between MR and computed tomography (CT) was developed to solve this issue. However, delivered dose may be different due to volumetric changes during image registration process. In this respect, synthetic CT generated from the MR image would provide more accurate information required for the real time RT. Materials and Methods: We analyzed 1,209 MR images from 16 patients who underwent MR guided RT. Structures were divided into five tissue types, air, lung, fat, soft tissue and bone, according to the Hounsfield unit of deformed CT. Using the deep learning model (U-NET model), synthetic CT images were generated from the MR images acquired during RT. This synthetic CT images were compared to deformed CT generated using the deformable registration. Pixel-to-pixel match was conducted to compare the synthetic and deformed CT images. Results and Discussion: In two test image sets, average pixel match rate per section was more than 70% (67.9 to 80.3% and 60.1 to 79%; synthetic CT pixel/deformed planning CT pixel) and the average pixel match rate in the entire patient image set was 69.8%. Conclusion: The synthetic CT generated from the MR images were comparable to deformed CT, suggesting possible use for real time RT. Deep learning model may further improve match rate of synthetic CT with larger MR imaging data.