http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Yu-Hyeon Won(원유현),Jin-Sung Kim(김진성),Byuong-Chan Park(박병찬),Young-Mo Kim(김영모),Seok-Yoon Kim(김석윤) 한국컴퓨터정보학회 2019 韓國컴퓨터情報學會論文誌 Vol.24 No.1
In this paper, we propose a efficient feature point extraction method that can solve the problem of performance degradation by introducing a preprocessing process when extracting feature points by utilizing the characteristics of 360-degree realistic media. 360-degree realistic media is composed of images produced by two or more cameras and this image combining process is accomplished by extracting feature points at the edges of each image and combining them into one image if they cover the same area. In this production process, however, the stitching process where images are combined into one piece can lead to the distortion of non-seamlessness. Since the realistic media of 4K-class image has higher resolution than that of a general image, the feature point extraction and matching process takes much more time than general media cases.
Research Articles : Cloning and Characterization of Bombyx mori Cyclophilin A
( Sung Wan Kim ),( Eun Young Yun ),( Seong Ryul Kim ),( Seung Won Park ),( Seok Woo Kang ),( O Yu Kwon ),( Tae Won Goo ) 한국잠사학회 2011 International Journal of Industrial Entomology Vol.23 No.2
Cyclophilins are originally identified as cytosolic binding protein of the immunosuppressive drug cyclosporine A. They have an activity of peptidyl prolyl cis/trans-isomerases (PPIase), which may play important roles in protein folding, trafficking, assembly and cell signaling. In this study, we report the cloning and characterization of a Bombyx mori cyclophilin A (bCypA) cDNA. The full-length cDNA of bCypA consist of 947 nucleotides with a polyadenylation signal sequence AATAAA and contain an open reading frame of 498 nucleotides encoding a polypeptide of 166 amino acids. The deduced amino acid sequence of bCypA shares a central peptidyl prolyl cis/trans-isomerase and a cyclosporin-A-binding domain with other cyclophilin sequences. Relative quantification real-time (RT) PCR analysis shows that mRNA transcripts of bCypA are detected in all the investigated tissues and highest expression level in the skin of 3-day-old 5 instar larva. Also, bCypA had PPIase activity on the proline-containing peptides. Accordingly, we suggest that bCypA is a new member of the cyclophilin A (CyPA) family and will be useful for quality control of bioactivity recombinant proteins with proline-containing peptides.
Seok-Myeong Jang,Min-Mo Koo,Yu-Seop Park,Jang-Young Choi,Sung-Ho Lee IEEE 2011 IEEE transactions on magnetics Vol.47 No.10
<P>This paper presents a comparative analysis of the characteristics of high-speed permanent magnet synchronous machines (PMSMs) with diametrically magnetized rotors under different construction conditions of the rotor magnetic circuit. An analytical method is adopted to predict the magnetic field distribution and to calculate the electrical parameters by using the transfer relations based on a two-dimensional model in a polar coordinate system. In addition, three types of PMSMs with diametrically magnetized permanent magnets are proposed in this work. The electrical parameters are estimated and the magnetic field distribution is analyzed for those models, and these results are compared with those obtained using the finite element method; the two sets of results are found to be in good agreement. On the basis of the analysis results, a real model manufactured and the validity of our results is demonstrated by performing suitable experiments.</P>
Sung, Hye Young,Kim, Sang Woo,Kang, Won Kyung,Kim, Su Young,Jung, Chan-Kwon,Cho, Yu Kyung,Park, Jae Myung,Lee, In Seok,Choi, Myung-Gyu,Chung, In-Sik Lippincott Williams Wilkins, Inc. 2012 European journal of gastroenterology & hepatology Vol.24 No.8
BACKGROUND AND AIM: The endoscopic techniques for treating a small rectal neuroendocrine tumor (NET) are performed in most large centers; however, the endoscopic management of this condition is not well established. This study was designed to determine the long-term prognosis of endoscopically resected NET. METHODS: We prospectively studied patients with endoscopically treated rectal NET in Seoul St Mary’s hospital, between January 2000 and June 2010. The long-term outcomes were analyzed in association with the pathological complete resection and resection procedures. RESULTS: Seventy-seven patients (48 men and 29 women; mean age, 52.3 years; range, 23–77 years) were included. The average NET size was 7.0±2.8 mm (range, 3–16 mm). There was no procedure-related complication. En-bloc removal was achieved for all lesions, and the rate of histological complete resection was 75.3% (58/77). Histological complete resection rates were 71.4% (10/14) by conventional endoscopic mucosal resection (EMR), 74.1% (43/58) by a two-channel EMR, and 100.0% (5/5) by endoscopic submucosal dissection (ESD). Among six patients with incomplete histological resection, two underwent additional EMR, two underwent transanal endoscopic microsurgery, and two underwent low anterior section with lymph node dissection. The remaining 13 patients with ‘possible’ remnant NET underwent regular endoscopic surveillance without additional resection. In the latter group, only one patient had local recurrence, detected on regular colonoscopic surveillance, after 56 months and was treated with additional EMR. All of the patients are alive and 98.7% (76/77) of the patients are free from disease during the follow-up periods. CONCLUSION: Endoscopic resection is a safe and effective modality and may potentially be used for the treatment of NETs smaller than 15 mm in diameter, those confined to the submucosal layer, and those without metastasis. Local treatment was believed to be curative in cases with complete histological resection. In addition, this treatment may have an excellent prognosis in patients with ‘possible’ remnant NET.
Detection of Differentially Expressed Genes in Glioblastoma by Suppression Subtractive Hybridization
Yu, Na-Mi,Ahn, Jung-Yong,Choi, Eun-Jin,Hong, Yong-Kil,Kim, Tai-Gyu,Kim, Chang-Hyun,Lee, Kyu-Sung,Kim, Dong-Seok,Kim, Jin-Kyeoung The Korean Neurosurgical Society 2005 Journal of Korean neurosurgical society Vol.37 No.6
Objective: A variety of genetic alterations in human glioblastoma comprises signal transduction and cell cycle arrest control of cellular processes. Subtractive hybridization is potentially a faster method for identifying differentially expressed genes associated with a particular disease state. Using the technique of subtraction, we isolated novel genes that are overexpressed in glioblastoma tissue as compared to normal brain tissue. Methods: We evaluated the differential expression of genes in each of hybridizing tester and driver cDNAs to digested 130 clones. After sequencing of 130 clones and homology search, this study performed to determine mRNA expression of the unknown gene, "clone 47", in brain tissue, glioblasoma, and several cancer cell lines by reverse transcription-polymerase chain reaction (RT-PCR). To test the time course for Go-phase arrest, serum stimulation and expression at various times for RT-PCR performed. Results: We identified 23 novel genes by BLAST of the digested 130 clones. The expressions of "clone 47" mRNA of glioblastoma and several cancer lines were significantly higher than normal brain tissues and several normal cell lines. We confirmed the mRNA expression of "clone 47" was up-regulation for $0.5{\sim}1hr$ of WI-38 cell differentiation. Conclusion: The novel gene, "Clone 47" is upregulated in glioblastoma tissue and several cancer cell lines. This gene is time dependent activation during time course of serum stimulation. This result suggests that "clone 47" playa role in brain tumorigenesis and the activation of this "clone 47" may be necessary for the development of cancer.
Comparison of Dual Peak Current Limiting Operation for a Series-Connected SFCL Using Two Iron Cores
Yu, Byunggyu,Han, Tae-Hee,Lim, Sung-Hun,Kim, Young-Pil,Ko, Seok-Cheol Institute of Electrical and Electronics Engineers 2018 IEEE transactions on applied superconductivity Vol.28 No.4
<P>In this paper, the dual peak current limiting characteristics of superconducting fault current limiters (SFCLs) using dual iron cores were compared to each other. The SFCLs were connected in series between two coils (<I>N </I><SUB>1</SUB> and <I>N</I><SUB>2</SUB>). However, the two coils were connected differently to the current source location. The dual peak current limiting characteristics and power burden of these SFCLs could be varied depending on design factors, such as the current source location between the two coils. Using a short-circuit simulation experiment, we compared and analyzed the operating status of the two superconducting elements and their peak current limiting characteristics based on the current source location.</P>