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Recent Progress on Fiber-Based Optical Components

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光学学报 2003年第S1期23卷 233-234页

作者： akira wada Optics and Electronics Laboratory Fujikura Ltd. 1440 Mutsuzaki Sakura Chiba 285-8550 Japan

The trends of fiber-based optical component technologies are reviewed focusing on fused-taper couplers and fiber Bragg gratings for high bit-rate DWDM transmission systems.

关键词： been in as with of FBG Recent Progress on Fiber-Based Optical Components have on

Seismic retrofit of existing SRC frames using rocking walls and steel dampers

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Frontiers of Structural and Civil Engineering 2011年第3期5卷 259-266页

作者： akira wada Zhe QU Shojiro MOTOYUI Hiroyasu SAKATA Structural Engineering Research Center Tokyo Institute of TechnologyTokyo 152-8550Japan Center for Urban Earthquake Engineering Tokyo Institute of TechnologyTokyo 152-8550Japan

A retrofit of an existing ll-story steel reinforced concrete frame that features the innovative use of post-tensioned rocking walls and shear steel dampers is *** main components of the retrofitting plan and important design considerations are *** system is expected to effectively control the deformation pattern of the existing structure and significantly reduce damage to the existing structure during major earthquakes.

关键词： building structure seismic retrofit rockingwall steel damper

Novel Fused Taper 1x4 Star Coupler for Full-Band Operation

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光学学报 2003年第S1期23卷 119-120页

作者： Masakazu Ohashi Hideki Sasaki Ryoukichi Matsumoto Daiichiro Tanaka akira wada Optics and Electronics Laboratory Fujikura Ltd. 1440 Mutsuzaki Sakura Chiba 285-8550 JapanOptics and Electronics Laboratory Fujikura Ltd. 1440 Mutsuzaki Sakura Chiba 285-8550 JapanOptics and Electronics Laboratory Fujikura Ltd. 1440 Mutsuzaki Sakura Chiba 285-8550 JapanOptics and Electronics Laboratory Fujikura Ltd. 1440 Mutsuzaki Sakura Chiba 285-8550 JapanOptics and Electronics Laboratory Fujikura Ltd. 1440 Mutsuzaki Sakura Chiba 285-8550 Japan

A novel fused taper 1×4 coupler for full-band operation is proposed. Wavelength flattened characteristics and excellent branching uniformity less than 0.4 dB have been achieved in wavelength range from 1200 nm to 170... 详细信息

关键词： Star nm been 一弓 Novel Fused Taper 1x4 Star Coupler for Full-Band Operation in than high have Wave

Higher Performance Seismic Structures for Advanced Cities and Societies

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Engineering 2019年第2期5卷 184-189页

作者： Jiro Takagi akira wada Graduate School of Urban Environmental Sciences Tokyo Metropolitan University Tokyo 192-0397 Japan Materials and Structures Laboratory Tokyo Institute of Technology Tokyo 226-8503 Japan

1. Introduction Tokyo, one of the largest cities in the world, is the capital of Japan, a heavily earthquake-prone country. The Japanese population and much of its functionality are highly concentrated in Tokyo. The estimated damage to Tokyo as a result of future large earthquakes with a magnitude greater than the Japanese scale 7 is extremely high. The number of casualties could exceed 20 000 due to both the shaking itself and post-earthquake fires.

关键词： Introduction Tokyo highly concentrated post-earthquake fires

Adiponectin deficiency exacerbates lipopolysaccharide/ D-galactosamine-induced liver injury in mice

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World Journal of Gastroenterology 2006年第21期12卷 3352-3358页

作者： Hitoshi Matsumoto Shinji Tamura Yoshihiro Kamada Shinichi Kiso Juichi Fukushima akira wada Norikazu Maeda Shinji Kihara Tohru Funahashi Yuji Matsuzawa Iichiro Shimomura Norio Hayashi Department of Gastroenterology and Hepatology Osaka University Graduate School of Medicine2-2K1Yamada-okaSuitaOsaka 565-0871Japan Department of Metabolic Medicine Osaka University Graduate School of Medicine2-2B5Yamada-okaSuitaOsaka 565-0871Japan Sumitomo Hospital 5-3-20 Kita-Ku nakanoshimaOsaka530-0005Japan

AIM： To examine the effects of adiponectin on the functions of Kupffer cells, key modulators of lipopolysaccharide （LPS） -induced liver ***： D-galactosamine （GAIN） and LPS were injected intraperitoneally into adiponectin-/- mice and wild type mice. Kupffer cells, isolated from Sprague-Dawley rats, were preincubated with or without adiponectin, and then treated with ***： In knockout mice, GalN/LPS injection significantly lowered the survival rate, significantly raised the plasma levels of alanine transaminase and tumor necrosis factor-α （TNF-α） and significantly reduced IL-10 levels compared with wild type mice. TNF-α gene expression in the liver was which higher and those of IL-10 were lower in knockout mice than in wild type mice. In cultured adiponectin-pre-treated Kupffer cells, LPS significantly lowered TNF-α levels and raised IL-10 levels in the culture media and their respective gene expression levels, compared with Kupffer cells without ***： Adiponectin supresses TNF-α production and induces IL-10 production by Kupffer cells in response to LPS stimulation, and a lack of adiponectin enhances LPS-induced liver injury.

关键词： Adiponectin Lipopolysaccharide Kupffer cell TNF-alpha IL10

DNA methylation of the Monoamine Oxidases A and B genes in postmortem brains of subjects with schizophrenia

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Open Journal of Psychiatry 2012年第4期2卷 374-383页

作者： Qiaohui Yang Keiko Ikemoto Satoshi Nishino Junko Yamaki Yasuto Kunii akira wada Yoshimi Homma Shin-Ichi Niwa Department of Biomolecular Science School of Medicine Fukushima Medical University Fukushima Japan Department of Neuropsychiatry School of Medicine Fukushima Medical University Fukushima Japan

Aims: We focused on DNA methylation of the promoter regions of the Monoamine Oxidase (MAO) A and B genes from postmortem brains of subjects with schizophrenia. Methods: We determined levels of DNA methylation using genomic DNA samples purified from four brain areas: prefrontal cortex (PFC), hippocampus, occipital cortex and nucleus accumbens (NAc), by a bisulfite sequencing method from seven normal subjects and six subjects with schizophrenia. Results: Although very few methylated CpGs of the MAOA and MAOB genes were detected in male samples, various DNA methylation patterns were present in female samples, and some differences were found in such patterns between normal subjects and subjects with schizophrenia. In the PFC, the average level of methylation of both genes was significantly higher in subjects with schizophrenia than in normal subjects. The content of highly methylated alleles of the MAOA gene in the NAc was significantly associated with schizophrenia, with similar results obtained for the MAOB gene in both the NAc and PFC. Some CpG sites showed higher levels of methylation in schizophrenia than in normal subjects. Conclusions: Levels of methylation were quite high in NAc and PFC in female subjects with schizophrenia compared with those in female normal subjects.

关键词： DNA Methylation Monoamine Oxidase Nucleus Accumbens Postmortem Brain Schizophrenia

Quantum advantages for image filtering on images with efficient encoding and lower-bounded signal-to-noise ratio

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Science China(Physics,Mechanics & Astronomy) 2024年第9期67卷 2-12页

作者： Zidong Cui Shan Jin akira Sone Xiaoting Wang Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610051China Key Laboratory of Quantum Physics and Photonic Quantum Information Ministry of EducationUniversity of Electronic Science and Technology of ChinaChengdu 611731China Department of Physics University of MassachusettsBoston 02125USA

Quantum image processing has long been a fascinating field,but establishing the existence of quantum speedup for all images remains *** this study,we aim to identify a subset of images for which a quantum algorithm can be developed with a guaranteed ***,we present a quantum image filtering algorithm that exhibits an exponential speedup for efficiently encoded images with a lower-bounded signal-to-noise *** approach relies on a fixed-point Grover's search to emulate the effect of Hadamard multiplication with the filtering *** demonstrate its effectiveness,we apply our method to three typical filtering ***,we emphasize the significance of the efficient-encoding assumption by illustrating that the quantum speedup may diminish for images lacking efficient *** work underscores the importance of exploring image types and features to realize potential quantum advantages in image processing.

关键词： quantum computing quantum image filtering quantum speedup

Tomographic particle image velocimetry measurement on three-dimensional swirling flow in dual-stage counter-rotating swirler

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Chinese Journal of Aeronautics 2024年第3期37卷 7-20页

作者： Yuyang ZHOU Ling DONG Mingtao SHANG Jibao LI akira RINOSHIKA Key Laboratory of Fluid Mechanics of Ministry of Education Beihang UniversityBeijing 100191China School of Mechanical and Automotive Engineering Shanghai University of Engineering ScienceShanghai 201620China AECC Commercial Aircraft Engine Co. Ltd.Shanghai 200241China Department of Mechanical Systems Engineering Yamagata UniversityYamagata 992-8510Japan

Three-Dimensional(3D)swirling flow structures,generated by a counter-rotating dualstage swirler in a confined chamber with a confinement ratio of 1.53,were experimentally investigated at Re=2.3×10^(5)using Tomographic Particle Image Velocimetry(Tomo-PIV)and planar Particle Image Velocimetry(PIV).Based on the analysis of the 3D time-averaged swirling flow structures and 3D Proper Orthogonal Decomposition(POD)of the Tomo-PIV data,typical coherent flow structures,including the Corner Recirculation Zone(CRZ),Central Recirculation Zone(CTRZ),and Lip Recirculation Zone(LRZ),were *** counter-rotating dual-stage swirler with a Venturi flare generates the independence process of vortex breakdown from the main stage and pilot stage,leading to the formation of an LRZ and a smaller CTRZ near the nozzle *** confinement squeezes the CRZ to the corner and causes a reverse rotation flow to limit the shape of the CTRZ.A large-scale flow structure caused by the main stage features an explosive breakup,flapping,and Precessing Vortex Core(PVC).The explosive breakup mode dominates the swirling flow structures owing to the expansion and construction of the main jet,whereas the flapping mode is related to the wake *** limits the expansion of PVC and causes it to contract after the impacting area.

关键词： Coherent structures Dual-stage counter-rotating swirler cup Precessing vortex core Proper orthogonal decomposition Swirling flow Tomographic particle image velocimetry

Newly Admitted Psychiatric Inpatients after the 3.11 Disaster in Fukushima, Japan

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Open Journal of Psychiatry 2017年第3期7卷 131-146页

作者： Masaki Hisamura Arinobu Hori akira wada Itaru Miura Hiroshi Hoshino Shuntaro Itagaki Yasuto Kunii Junya Matsumoto Hirobumi Mashiko Craig Katz Shin-Ichi Niwa Department of Emergency Medicine Saitama Medical Center Saitama Medical University Saitama Japan Department of Disaster and Comprehensive Medicine Fukushima Medical University Fukushima Japan Department of Neuropsychiatry Fukushima Medical University Fukushima Japan Departments of Psychiatry and Medical Education Icahn School of Medicine at Mount Sinai New York USA Department of Psychiatry Aizu Medical Center Fukushima Medical University Fukushima Japan

Background: After the March 2011 “triple” disaster in Japan, the residents of Fukushima Prefecture suffered from serious psychological stress. Aims: This study aimed to elucidate the influence of stressful conditions on psychiatric disorders, as reflected in new psychiatric admissions. Methods: Diagnoses and background conditions among new psychiatric admissions during the 3 months immediately after the disaster in 2011 and the corresponding time periods of 2010 and 2012 were surveyed. Results: In 2011, more patients were admitted in confusional, manic, neurasthenic, and delirious states, whereas there were fewer admissions for depression. In 2012, more admissions pertained to depression. Twenty-four percent of the new admissions in 2011 were associated with concerns about radiation contamination and hospitalization, which declined to 4% in 2012. Conclusions: The diagnoses and background conditions among new psychiatric admissions were affected by the disaster;with the influence differing according to the time elapsed after the disaster.

关键词： Depression Fear of Radiation Fukushima Disaster Manic State Psychiatric Inpatients