A5034422539- Optical Network Technologies
- Advanced Photonic Communication Systems
- Photonic and Optical Devices
- Advanced Optical Network Technologies
- Semiconductor Lasers and Optical Devices
- Advanced Fiber Laser Technologies
- Software-Defined Networks and 5G
- Optical Wireless Communication Technologies
- Laser Design and Applications
- Telecommunications and Broadcasting Technologies
- PAPR reduction in OFDM
- Radio Frequency Integrated Circuit Design
- Interconnection Networks and Systems
- Optical Coherence Tomography Applications
- Robotic Locomotion and Control
- Millimeter-Wave Propagation and Modeling
- Organic Electronics and Photovoltaics
- Advanced Wireless Communication Techniques
- Cloud Computing and Resource Management
- Photochemistry and Electron Transfer Studies
- Laser-Matter Interactions and Applications
- Mass Spectrometry Techniques and Applications
- Semiconductor materials and devices
- Religion, Ecology, and Ethics
- Parasite Biology and Host Interactions
Shionogi (Japan)
2019-2025
IHI Corporation (Japan)
1994-2025
Osaka Metropolitan University
2025
National Institute of Information and Communications Technology
2013-2024
Tokyo University of Science
2018-2024
National Cerebral and Cardiovascular Center
2024
Keio University
2009-2024
Kyoto University
2007-2024
Kyorin University
2020-2024
Osaka University
2013-2023
The generation of a 40-Gb/s 16-QAM radio-over-fiber (RoF) signal and its demodulation the wireless transmitted over free space 30 mm in W-band (75-110 GHz) is demonstrated. generated by coherent polarization synthesis method using dual-polarization QPSK modulator. A combination simple RoF versatile digital receiver technique suitable for proposed optical/wireless seamless network.
Rice straw was evaluated as a carbon source for the fungi, Trichoderma reesei and Humicola insolens, to produce enzymes rice hydrolysis. The enzyme activity of T. H. insolens cultivated in medium containing non-treated were almost equivalent Avicel medium, form refined cellulose. NH4OH-treated 4-fold higher than from cultures grown medium. In contrast, had significantly lower compared with or Avicel. combined use resulted significant synergistic enhancement enzymatic activity. Our data...
Current status and the future perspective of digital coherent technology for optical fiber radio-over-fiber (RoF) transmission systems will be reviewed. For starter, we review two key techniques; receiver compensation techniques nonlinearity-induced impairments. Next, present a commercial deployment 100 G long-haul system R&D challenge to 400 beyond systems. Finally, turn our focus on RoF We introduce an ongoing government-funded program in Japan, entitled "Agile capability highly resilient...
This study aimed to evaluate the effectiveness of ensitrelvir, an oral antiviral, in reducing hospitalization risk outpatients at high-risk for severe COVID-19 during Omicron era. was a retrospective using large Japanese health insurance claims database. It included symptoms who received their first diagnosis between November 2022 and July 2023. The aged ≥ 18 years. primary endpoint all-cause 4-week period from date outpatient medication, comparing ensitrelvir group (n = 5177) no antiviral...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPulse radiolysis study of aqueous nitric acid solutions: formation mechanism, yield, and reactivity NO3 radicalY. Katsumura, P. Y. Jiang, R. Nagaishi, T. Oishi, K. Ishigure, YoshidaCite this: J. Phys. Chem. 1991, 95, 11, 4435–4439Publication Date (Print):May 1, 1991Publication History Published online1 May 2002Published inissue 1 1991https://pubs.acs.org/doi/10.1021/j100164a050https://doi.org/10.1021/j100164a050research-articleACS...
A low voltage (1 V), low-power (100 mu W), and low-frequency (9 kHz) fifth-order fully integrated active low-pass filter (LPF) using a bipolar technology is described. Novel highly linear transconductors consisting of N emitter-coupled pairs were designed for low-voltage operation. The input range expanded to about 100 mV/sub p-p/ at 1% error with N=4, which twice that the conventional linearization technique. basically gyrator-capacitor type, in gyrators are implemented by linearized...
Laser phase noise conversion to intensity due fiber chromatic dispersion is analyzed by deriving the power spectral density. Theory predicts that phase-modulation-amplitude-modulation a principal limiting factor of gigabit-per-second nonregenerative transmission using an external modulator when linewidth laser transmitter above several tens megahertz and total fibers exceeds thousand picoseconds per nanometer. This fact confirmed 2.4-Gb/s experiments multiple inline Er-doped amplifiers. The...
We propose a millimeter-wave (MMW) coherent radio-over-fiber (RoF) transmission system for application to an access network with direct broadband last-mile wireless connection optical fiber network. The RoF comprises two-tone signal generator advanced modulation format high-throughput and employs digital-signal-processing-aided detection technique MMW radio, which is similar that of digital detection. As proof concept, 20-GBd quadrature phase-shift keying over 20 km before radio m air...
We propose a sliceable bandwidth variable transceiver (S-BVT) architecture suitable for metro/regional elastic networks and highly scalable data center applications. It adopts multicarrier modulation, either OFDM or DMT, cost-effective optoelectronic front-end. The high-capacity S-BVT is programmable, adaptive, reconfigurable by an SDN controller efficient resource usage, enabling unique granularity, flexibility, grid adaptation, even in the conventional fixed-grid networks. experimentally...
Oxytocin (OT) is a 9-amine neuropeptide that plays an essential role in mammalian labor, lactation, maternal bonding, and social affiliation. OT has been reported to exert analgesic effect both humans animals, the results of certain animal experiments have shown partially blocked by opioid receptor antagonists. To investigate relationship between μ (MOR), we evaluated how affects MOR vitro performing electrical impedance-based biosensor assay (CellKey™ assay), intracellular cAMP assay,...
We review our work on an intra-data center (DC) network based co-deployment of optical packet switching (OPS) and circuit (OCS), conducted within the framework a five-year-long national R&D program in Japan (∼March 2016). For starter, preceding works relevant to technologies intra-DC networks are briefly reviewed. Next, we present architecture torus-topology OPS agile OCS network, together with new flow management concept, where instantaneous path on-demand, so-called <italic...
Multi-input multi-output (MIMO) transmission of two millimeter-wave radio signals seamlessly converted from polarization-division-multiplexed quadrature-phase-shift-keying optical is successfully demonstrated, where a access unit basically consisting only optical-to-electrical converters and receiver performs total signal equalization both the paths demodulation with digital processing (DSP). Orthogonally polarized components that are directly to two-channel can be demultiplexed demodulated...
Values have been recognized as critical leverage points for sustainability transformations. However, there is limited evidence unpacking which types of values are associated with specific sustainable and unsustainable futures, described by future scenarios other futures-related works. This paper builds on a review 460 scenarios, visions, works in the Intergovernmental Science-Policy Platform Biodiversity Ecosystem Services Assessment, synthesizing from academia, private sector, governmental...
Fast-setting calcium phosphate cement (FSCPC) is a promising new bioactive with significantly short setting time (approximately 5–6 min) compared to conventional (c-CPC) (30–60 at physiologic temperatures. As result of its ability set quickly, it applicable in surgical procedures where fast required. In this study, FSCPC was implanted rat tibiae evaluate tissue response and biocompatibility. converted hydroxyapatite (HAP) bone faster than c-CPC the first 6 h. By 24 h, significant amounts...
Protein transduction domains (PTDs), such as Tat, antennapedia homeoprotein (Antp), Rev and VP22, have been extensively utilized for intracellular delivery of biologically active macromolecules in vitro vivo. There is little known, however, about the relative efficacy, cytotoxicity internalization mechanism individual PTDs.We examined cargo efficacies four major PTDs (Tat, Antp, VP22) evaluated their toxicities cell internalizing pathways various lines.The order efficacy these conjugated to...
We demonstrate 20-Gb/s W-band wireless transmission in free space with a distance of 30mm using optical signal generation. Optically synthesized QPSK and direct upconversion technique ease generation RoF signals for dual purpose wireline link. A radio receiver frequency downconversion digital processing will be applicable any detection.
This paper presents a novel four-limbed robot, WAREC-1 having high locomotion ability with versatility in styles. At disaster sites, there are various types of environments where robot must move such as rough terrain possibility collapse, narrow places, stairs, vertical ladders and so on. moves hazardous by changing styles: bipedal/quadrupedal walking, crawling, ladder climbing. has commonly structured limbs 28-DoFs total 7-DoFs each limb. The is 1,690 mm tall when standing on two weighs 155...
Mesenchymal stem cells (MSCs), which are isolated from adipose tissue (AD-MSCs), umbilical cord (UC-MSCs), or bone marrow, have therapeutic potential including anti-inflammatory and immunomodulatory activities. It was recently reported that MSCs also effective as a treatment for neuropathic pain, although the underlying mechanisms yet to be resolved. Therefore, in this study, we investigated effects of human AD- UC-MSCs on pain its using rat models partial sciatic nerve ligation (PSNL). were...
Abstract This study aims to verify the applicability of a numerical scheme pseudo‐cracking approach nonlinear finite element method (FEM) for estimating remaining load‐bearing capacity and fatigue life reinforced concrete beams with horizontal cracks across an extensive area. A static four‐point bending test loading by changing positions are conducted on specimens artificial cracks, each is reproduced using FEM. The maximum load, relationship between load displacement, strain development,...