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金治弘,安元植,韓成大,尹如松 成均館大學校 科學技術硏究所 1985 論文集 Vol.36 No.1
This study have been carried out as a sector of the rainfall-runoff relationship research. First of all, the runoff research has the difficult problem due to non-linearity of hydrological phenomena. In this study, according to the method of runoff separation into components by Hino and Hasebe (1980) is applied. This theory considers sufficiently the physical mechanism of runoff process to separate into the groundwater, interflow, and surfaceflow, respectively. Then each component of runoff time series can be reduced to the linear subsystem, that is, ARMA model can be obtained in each subsystem. Actual flood hydrograph of the every two major gauging stations in the Han River basin, the Naktong River basin and the Kum River have been analyzed, and have taken out the characteristics of each river basin. Also the runoff model have obtained for these basins.
만성 활동성 간염에 동반된 간소엽의 변화에 대한 조직학적 연구
李重達,朴耀翰,李昌弘 한양대학교 의과대학 1987 한양의대 학술지 Vol.7 No.2
The study of liver biopsy specimens taen from 67 Korean adults with B-viral chronic active hepatitis (CAH) revealed lobular inflammation which was seldom seen in European-American patients. These findings suggested that the morphologic difference may be indicative of the ultimate prognosis and pathogenesis for chronic hepatitis B in Korean. The author reviewed biopsy materials form the 67 patients with CAH and found 24 cases of labourlar inflammation of varying degree (35%). Serum aminotransferases (SGOT/SGPT) and hepatitis B viral markers (HBs Ag, Ab-HBs, Ab-HBc, Hbe Ag, Ab-Hbe) were tested at the time of liver biopsy. In view of pathogenesis of the lobular changes in CAH, correlation between histologic changes, SGOT/SGPT, and hepatitis B viral markers was discussed, and the results led to following conclusions. Lobular changes associated with CAH consisted of ballooning degeneration, acidophilic bodies, and spotty necrosis which were present mainly in the centrilobular zone around the terminal venules. No correlation was noted between the degree of lobular inflammation and piecemeal necrosis. Lobular changes in the severe degree, however, correlated to the corresponding degree of piecemeal necrosis. The severe degree of lobular inflammation corresponded with the value of serum aminotransferases. No correlation was, however, found between the mild degree of lobular changes and serum aminotransferase values. Of 20 CAH cases with lobular changes tested for hepatitis B viral markers, 18 wee positive for HBs Ag and 9 Hbe Ag. These findings were indicative of the high infectivity of the CAH with lobular changes.
이경규,김산해,김홍철,이원철,신요안 崇實大學校 生産技術硏究所 2002 論文集 Vol.32 No.-
MIMO (multi-input multi-output) systems can achieve high data capacity and high data rate in the third generation (3G) or beyond-3G mobile communication systems. To effectively improve the performance of MIMO systems, new detection schemes which can mitigate mutual interferences from multiple transmit antennas, are highly required. In this paper, we consider a posteriori probability (APP) type detection schemes for the MIMO systems, and compare with other sub-optimal detection schemes based on zero forcing (ZF) and minimum mean square error (MMSE) - ordered successive interference cancellation (OSIC). Simulation results show that the APP outperforms ZF-OSIC and MMSE-OSIC, while the performance discrepancy becomes smaller as the number of receive antennas increases.
백종현,소창배,이은영,이지숙,신은경,박은호,서정아,양재홍,송준영,박선자,박요한,최영식 고신대학교의과대학 2007 고신대학교 의과대학 학술지 Vol.22 No.2
Familial adenomatous polyposis (FAP) is an autosomal dominant syndrome, typically characterized by multiple colorectal adenomas and increased incidence of colorectal carcinomas if it is not treated. Moreover, a variety of extracolonic manifestation are seen. The prevalence of thyroid tumors developing in patients with FAP is about 1∼2%. Generally, papillary thyroid cancer indicates low mortality but ,however, as people get older, the cancer becomes more aggressive. So, the operation is required. Recently we experienced a case of FAP, presenting with papillary thyroid carcinoma, and reported with a brief review of literatures.
Surgical Outcomes of Hepatocellular Carcinoma with Bile Duct Tumor Thrombus
Yo-Han Park,Shin Hwang,Hee-Jung Wang,Sung-su Yun,Kyung Sik Kim,Deok-Bog Moon,Young-Joo Lee,Ki-Hun Kim,Yong-Keun Park,Weiguang Xu,Bong-Wan Kim,Dong Shik Lee,Hong-Jin Kim,Jin Hong Lim,Jin Sub Choi,Sung 한국간담췌외과학회 2012 한국간담췌외과학회 학술대회지 Vol.2012 No.4
Real-time Tracking and Identification for Multi-Camera Surveillance System
Yo-Hoon Hong,Seung June Song,Jungkyu Rho 한국인터넷방송통신학회 2018 International Journal of Internet, Broadcasting an Vol.10 No.1
This paper presents a solution for personal profiling system based on user-oriented tracking. Here, we introduce a new way to identify and track humans by using two types of cameras: dome and face camera. Dome camera has a wide view angle so that it is suitable for tracking human movement in large area. However, it is difficult to identify a person only by using dome camera because it only sees the target from above. Thus, face camera is employed to obtain facial information for identifying a person. In addition, we also propose a new mechanism to locate human on targeted location by using grid-cell system. These result in a system which has the capability of maintaining human identity and tracking human activity (movement) effectively.
An RNA-Seq transcriptome analysis of rice genes in response to water deficiency in soil
Yo-Han Yoo,Anil Kumar N.C,Ki-Hong Jung 한국육종학회 2015 한국육종학회 심포지엄 Vol.2015 No.07
Water-deficiency is one of the most serious challenges which restrict crop production. Root is the primary tissues exposed to water limitation in soil. Although a number of transcriptome data under water limitation have been produced in rice, but most of them have analyzed the effect of leaf or shoot. Thus, understanding of relating molecular mechanism is still limited. To get global view of the effect on water deficiency in rice root, we carried out RNA-Seq experiment. To do this, we compared the RNA-Seq transcriptome data of 3 day samples under water deficiency with those of unstressed rice roots with unstressed control. As a result, we identified 1,098 genes upregulated in water stress condition for 3 days. Gene ontology (GO) enrichment analysis revealed that 18 GO terms are overrepresented. Of them, valyl-tRNA aminoacylation, transcription from RNA polymerase II promoter, glycine catabolic process, and L-phenylalanine catabolic process are more significant, indicating that transcription of new transcripts, control of translation fidelity, and reuse of primary and secondary metabolites can be activated during water stress.
Photoaging protective effects of BIOGF1K, a compound-K-rich fraction prepared from Panax ginseng
Hong, Yo Han,Kim, Donghyun,Nam, Gibaeg,Yoo, Sulgi,Han, Sang Yun,Jeong, Seong-Gu,Kim, Eunji,Jeong, Deok,Yoon, Keejung,Kim, Sunggyu,Park, Junseong,Cho, Jae Youl The Korean Society of Ginseng 2018 Journal of Ginseng Research Vol.42 No.1
Background: BIOGF1K, a compound-K-rich fraction, has been shown to display anti-inflammatory activity. Although Panax ginseng is widely used for the prevention of photoaging events induced by UVB irradiation, the effect of BIOGF1K on photoaging has not yet been examined. In this study, we investigated the effects of BIOGF1K on UVB-induced photoaging events. Methods: We analyzed the ability of BIOGF1K to prevent UVB-induced apoptosis, enhance matrix metalloproteinase (MMP) expression, upregulate anti-inflammatory activity, reduce sirtuin 1 expression, and melanin production using reverse transcription-polymerase chain reaction, melanin content assay, tyrosinase assay, and flow cytometry. We also evaluated the effects of BIOGF1K on the activator protein-1 signaling pathway, which plays an important role in photoaging, by immunoblot analysis and luciferase reporter gene assays. Results: Treatment of UVB-irradiated NIH3T3 fibroblasts with BIOGF1K prevented UVB-induced cell death, inhibited apoptosis, suppressed morphological changes, reduced melanin secretion, restored the levels of type I procollagen and sirtuin 1, and prevented mRNA upregulation of MMP-1, MMP-2, and cyclo-oxygenase-2; these effects all occurred in a dose-dependent manner. In addition, BIOGF1K markedly reduced activator-protein-1-mediated luciferase activity and decreased the activity of mitogen-activated protein kinases (extracellular response kinase, p38, and C-Jun N-terminal kinase). Conclusion: Our results strongly suggest that BIOGF1K has anti-photoaging activity and that BIOGF1K could be used in anti-aging cosmeceutical preparations.