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체외충격파 쇄석술 시행 후 5년 뒤 발생한 요관 협착 및 농신장 1예
이현승,권균홍,조용건,김봉진,임창섭,김자영,허동,임학 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.4
A 40-years-old woman was admitted to this hospital with flank pain and high grade fever for 2 weeks. As a matter of her past history, extracorporeal shock wave lithotripsy (ESWL) was performed for treatment of renal stones 5 years ago. Her abdominal CT findings were hydronephrosis with pyonephrosis and renal stones. Antibiotics administered for 5 days had no effects on her symptom improvement. A right ureteral stricture was noticed by ultrasonography follow up. We inserted double J stent and continued antibiotics therapy for 10 days, and then her fever was disappeared and flank pain was improved. ESWL is one of the most important treatment of renal and ureteral stone. However, its complications should not be negligible including bleeding, pain, ureteral obstruction, infection and so on. Complications of ESWL can be divided into acute and chronic courses. When we treat pyelonephritis patient with past history of ESWL, possibility of ureteral stricture must also be considered. In this study we report a case of pyelonephritis caused by ureteral stricture, possibly as a chronic complication of ESWL performed 5 years earlier
중연계 무선네트워크 환경의 도로유지관리계측 시스템 개발에 관한 연구
이상우,송종결,남왕현,김학수 강원대학교 산업기술연구소 2006 産業技術硏究 Vol.26 No.B
Wireless Sensor Networks provide a new paradigm for sensing and disseminating information from various environments, with the potential to serve many and diverse applications. Recent advancement in wireless communications and electronics has enabled the development of low-cost sensor networks. The sensor networks can be used for various application areas. For different application areas, there are different technical issues that researchers are currently resolving. The current state of the art of sensor networks is captured in this article, where solutions are discussed under their related protocol stack layer sections. This article also points out the open research issues and intends to spark new interests and developments in this field. In order to evaluate the application of field monitoring system, lab tests field and FEM analysis are conducted. Therefore the accuracy of RFID wireless sensor data is verified.
중연계 무선네트워크 환경의 도로유지관리계측 시스템 개발에 관한 연구
이상우,송종걸,남왕현,김학수 강원대학교 산업기술연구소 2006 産業技術硏究 Vol.26 No.A
Wireless Sensor Networks provide a new paradigm for sensing and disseminating information from various environments, with the potential to serve many and diverse applications. Recent advancement in wireless communications and electronics has enabled the development of low-cost sensor networks. The sensor networks can be used for various application areas. For different application areas, there are different technical issues that researchers are currently resolving. The current state of the art of sensor networks is captured in this article, where solutions are discussed under their related protocol stack layer sections. This article also points out the open research issues and intends to spark new interests and developments in this field. In order to evaluate the application of field monitoring system, lab tests, field test and FEM analysis are conducted. Therefore the accuracy of RFID wireless sensor data is verified.
Na, Chan Hyun,Hong, Ji Hye,Kim, Wan Sup,Shanta, Selina Rahman,Bang, Joo Yong,Park, Dongmin,Kim, Hark Kyun,Kim, Kwang Pyo Korean Society for Molecular and Cellular Biology 2015 Molecules and cells Vol.38 No.7
Since the emergence of proteomics methods, many proteins specific for renal cell carcinoma (RCC) have been identified. Despite their usefulness for the specific diagnosis of RCC, such proteins do not provide spatial information on the diseased tissue. Therefore, the identification of cancer-specific proteins that include information on their specific location is needed. Recently, matrix-assisted laser desorption ionization (MALDI) mass spectrometry (MS) based imaging mass spectrometry (IMS) has emerged as a new tool for the analysis of spatial distribution as well as identification of either proteins or small molecules in tissues. In this report, surgical tissue sections of papillary RCC were analyzed using MALDI-IMS. Statistical analysis revealed several discriminative cancer-specific m/z-species between normal and diseased tissues. Among these m/z-species, two particular proteins, S100A11 and ferritin light chain, which are specific for papillary RCC cancer regions, were successfully identified using LC-MS/MS following protein extraction from independent RCC samples. The expressions of S100A11 and ferritin light chain were further validated by immunohistochemistry of human tissues and tissue microarrays (TMAs) of RCC. In conclusion, MALDI-IMS followed by LC-MS/MS analysis in human tissue identified that S100A11 and ferritin light chain are differentially expressed proteins in papillary RCC cancer regions.
Marker Development for Onion Genetic Purity Testing using SSR Finder
Hyoun-Joung Kim,Heung-Ryul Lee,Ji Young Hyun,Ki Hyeon Song,Kyu-Hyun Kim,Jung Eun Kim,Cheol-Goo Hur,Chee Hark Harn 한국육종학회 2012 한국육종학회지 Vol.44 No.4
Molecular genetic markers have been widely used as powerful tools for analyzing the genome. In particular, SSR markers have practical applications in breeding systems because they can be used in high-throughput analyses for genetic mapping, heritable diversity testing, purity analysis, and marker-assisted selection. Currently, due to technical advances in DNA sequencing, large sequence databases are available for large-scale SSR mining and marker development. Here, we describe an automated method, the SSR Finder program, for SSR discovery in the onion sequence database, and primer design for amplifying the detected SSRs. A total of 1,049 SSR primers were obtained for genetic purity testing, and 100 SSR sets were analyzed in 14 bulb onion breeding lines using clustering analysis. A total of 20 selected markers from screening of all 1,049 SSR primers, were finally applied for genetic purity testing in three breeding lines, NW1, NW9, and NW10. The initial tests showed that 15%, 71%, and 97% of individuals within NW1, NW9, and NW10, respectively, were genetically homogeneous. These markers produced using the SSR Finder will be useful for investigating the genetic purity of onion breeding lines.
논문(論文) : 고 아음속 터빈 깃 주위의 열유동 및 내부 열전달에 관한 수치해석 연구
김우진 ( Woo Jin Kim ),김현식 ( Hyun Shik Kim ),곽재수 ( Jae Su Kwak ),김학봉 ( Hark Bong Kim ) 한국항공운항학회 2010 한국항공운항학회지 Vol.18 No.1
Developments of numerical methods are very important to design and analysis for a high subsonic turbine blade. In general, Analysis by experimental investigation has needed a lot of human resources and required time, indispensably, and equipments still have a limit to measure in conditions of high temperature. Rapid technological developments of CPU and integration level of memory make it possible to advance computation with almost exactly simulation so, recent developments of numerical methods are in spotlight. In the present study, the panel method, which is well-known as relatively simplified numerical method, and 2-dimensional ordinary differential Falkner-Skan equation were computed in order to analyze the outer flow, and FVM-based solid heat transfer equation, was also computed to forecast the temperature distribution of the airfoil and the turbine blade. Unstructured grid was constructed in the turbine blade, which has double cooling holes, in order to analyze the internal heat transfer. Cooling fluid was assumed as fully-developed turbulent flow and that circulated in cooling holes.
Application of Disease Resistance Markers for Developing Elite Tomato Varieties and Lines
Kim, Hyoun-Joung,Lee, Heung-Ryul,Hyun, Ji-Young,Won, Dong-Chan,Hong, Dong-Oh,Cho, Hwa-Jin,Lee, Kyung-Ah,Her, Nam-Han,Lee, Jang-Ha,Harn, Chee-Hark Korean Society of Horticultural Science 2011 원예과학기술지 Vol.29 No.4
Using the abundant available information about the tomato genome, we developed DNA markers that are linked to disease resistant loci and performed marker-assisted selection (MAS) to construct multi-disease resistant lines and varieties. Resistance markers of Ty-1, T2, and I2, which are linked to disease resistance to Tomato yellow leaf curl virus (TYLCV), Tomato mosaic virus (ToMV), and Fusarium wilt, respectively, were developed in a co-dominant fashion. DNA sequences near the resistance loci of TYLCV, ToMV, and Fusarium wilt were used for primer design. Reported candidate markers for powdery mildew-resistance were screened and the 32.5Cla marker was selected. All four markers (Ty-1, T2, I2, and 32.5Cla) were converted to cleavage amplification polymorphisms (CAPS) markers. Then, the CAPS markers were applied to 96 tomato lines to determine the phenetic relationships among the lines. This information yielded clusters of breeding lines illustrating the distribution of resistant and susceptible characters among lines. These data were utilized further in a MAS program for several generations, and a total of ten varieties and ten inbred lines were constructed. Among four traits, three were introduced to develop varieties and breeding lines through the MAS program; several cultivars possessed up to seven disease resistant traits. These resistant trait-related markers that were developed for the tomato MAS program could be used to select early stage seedlings, saving time and cost, and to construct multi-disease resistant lines and varieties.
CdS/CdSe lateral heterostructure nanobelts by a two-step physical vapor transport method
Kim, Yu Lee,Jung, Jae Hun,Yoon, Hyun Sik,Song, Man Suk,Bae, Se Hwan,Kim, Yong,Chen, Zhi Gang,Zou, Jin,Joyce, Hannah J,Gao, Qiang,Tan, Hark Hoe,Jagadish, Chennupati IOP Pub 2010 Nanotechnology Vol.21 No.14
<P>The two-dimensional heterostructure nanobelts with a central CdSe region and lateral CdS structures are synthesized by a two-step physical vapor transport method. The large growth rate difference between lateral CdS structures on both ± (0001) sides of the CdSe region is found. The growth anisotropy is discussed in terms of the polar nature of the side ± (0001) surfaces of CdSe. High-resolution transmission electron microscopy reveals the CdSe central region covered with non-uniform CdS layer/islands. From micro-photoluminescence measurements, a systematic blueshift of emission energy from the central CdSe region in accordance with the increase of lateral CdS growth temperature is observed. This result indicates that the intermixing rate in the CdSe region with CdS increases with the increase of lateral CdS growth temperature. In conventional CdSSe ternary nanostructures, morphology and emission wavelength were correlated parameters. However, the morphology and emission wavelength are independently controllable in the CdS/CdSe lateral heterostructure nanobelts. This structure is attractive for applications in visible optoelectronic devices. </P>