http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Takehisa Matsumoto,Masatomo Kawakubo,Mayumi Shiohara,Toshiko Kumagai,Eiko Hidaka,Kazuyoshi Yamauchi,Kozue Oana,Kenji Matsuzawa,Hiroyoshi Ota,Yoshiyuki Kawakami 한국미생물학회 2009 The journal of microbiology Vol.47 No.2
“Helicobacter heilmannii” is an uncultivable spiral-shaped bacterium inhabiting the human gastric mucosa. It is larger and more tightly-coiled than H. pylori. We encountered a patient with chronic gastritis infected a “H. heilmannii”-like organism (HHLO), designated as SH6. Gastric mucosa derived from the patient was orally ingested by specific pathogen free mice. Colonization of the mice by SH6 was confirmed by electron microscopy of gastric tissue specimens. In an attempt to characterize SH6, 16S rRNA and urease genes were sequenced. The 16S rRNA gene sequence was most similar (99.4%; 1,437/1,445 bp) to HHLO C4E from a cheetah. However, the urease gene sequence displayed low similarity (81.7%; 1,240/1,516 bp) with HHLO C4E. Taxonomic analysis disclosed that SH6 represents a novel strain and should constitute a novel taxon in the phylogenetic trees, being discriminated from any other taxon, with the ability of infecting human gastric mucosa.
Performance Characteristics and Flow Field of Axial Flow Hydraulic Turbine in Shallow Open Channel
Yasuyuki Nishi,Genki Sato,Daishi Shiohara,Terumi Inagaki,Norio Kikuchi 한국유체기계학회 2018 International journal of fluid machinery and syste Vol.11 No.4
We have been developing an axial flow hydraulic turbine with a collection device that can be used in open channels with shallow water depths such as agricultural waterways and small rivers. However, the addition of a collection device reduces the portability and increases the cost compared to axial flow hydraulic turbines without a collection device. Therefore, it is important to understand the performance characteristics and flow field of the axial flow hydraulic turbine in open channels while considering the possibility of using only an axial flow hydraulic turbine. This study focuses on an axial flow hydraulic turbine operating near both the free and bottom surfaces in an open channel. We conducted a multiphase flow analysis that considers the free surface, as well as a single-phase flow analysis that does not consider it. This study indicates that the maximum power coefficient obtained from multiphase flow analysis was lower than that obtained from single-phase flow analysis. This is thought to be the result of the water-receiving area and inflow velocity becoming smaller, the input power coefficient becoming lower due to the influences of the free surface, and the bottom surface of the channel and the turbine efficiency becoming lower as the result of a non-uniform velocity distribution.
Progress in R&D of coated conductor in M-PACC project
Izumi, T.,Ibi, A.,Nakaoka, K.,Taneda, T.,Yoshida, T.,Takagi, Y.,Nakamura, T.,Machi, T.,Katayama, K.,Sakai, N.,Yoshizumi, M.,Koizumi, T.,Kimura, K.,Kato, T.,Kiss, T.,Shiohara, Y. The Korea Institute of Applied Superconductivity a 2014 한국초전도저온공학회논문지 Vol.16 No.2
The five-year national project in Japan for R&D of coated conductors and applications, named as the Materials and Power Applications of Coated Conductors (M-PACC) project, was finished at the end of FY2013. The project consists of four sub-themes as cable, transformer, SMES and coated conductors. In the theme of coated conductors, the fabrication process had been developed to satisfy the requirements from the applications such as in-field $I_c$ performance, low AC loss in the long tapes etc. Through the project, the remarkable progress was achieved as follows; a high in-field minimum $I_c$ value over 54A/cm-width under 3T at 77K was realized in a 200m long EuBCO tape with artificial pinning centers of $BaHfO_3$ by the pulsed laser deposition (PLD) technique on the IBAD template. On the other hand, the AC loss reduction was confirmed in the tapes fabricated by both PLD and the metal organic deposition (MOD) techniques by scribing 100m tapes into 10-filamments. Additionally, the mechanism of the delamination phenomenon was systematically investigated and the strength was improved by eliminating the origins of the weak points in the films. Through the development, all targeted goals were accomplished and the several results were appreciated as a world champion data.