Shohei Iwamoto
A5010984134- Dark Matter and Cosmic Phenomena
- Astrophysics and Cosmic Phenomena
- Spectroscopy Techniques in Biomedical and Chemical Research
- Microfluidic and Bio-sensing Technologies
- Orbital Angular Momentum in Optics
- Radio Astronomy Observations and Technology
- Radio, Podcasts, and Digital Media
- Microfluidic and Capillary Electrophoresis Applications
- Particle physics theoretical and experimental studies
- X-ray Spectroscopy and Fluorescence Analysis
- Antibiotics Pharmacokinetics and Efficacy
- Mass Spectrometry Techniques and Applications
- Optical Systems and Laser Technology
- Liver Disease and Transplantation
- Particle Detector Development and Performance
- Advanced MRI Techniques and Applications
- Spectroscopy and Quantum Chemical Studies
- Cardiomyopathy and Myosin Studies
- Astronomical Observations and Instrumentation
- Advanced Sensor and Control Systems
- Water Quality Monitoring Technologies
- Optical Network Technologies
- Advanced Optical Sensing Technologies
- Advanced Drug Delivery Systems
- PAPR reduction in OFDM
University of Victoria
2021-2022
University of Yamanashi
2008-2014
University of Electro-Communications
2010
Illinois Institute of Technology
1996
High Energy Accelerator Research Organization
1996
Tohoku University
1996
Osaka University
1996
Teikyo University
1996
The Telescope Array (TA) collaboration has measured the energy spectrum of ultra-high cosmic rays with primary energies above 1.6 x 10^(18) eV. This measurement is based upon four years observation by surface detector component TA. shows a dip at an 4.6 eV and steepening 5.4 10^(19) which consistent expectation from GZK cutoff. We present results technique, new to analysis ray data, that involves generating complete simulation striking TA detector. procedure starts shower simulations using...
We search for ultra-high energy photons by analyzing geometrical properties of shower fronts events registered the Telescope Array surface detector. By making use an event-by-event statistical method, we derive upper limits on absolute flux primary with energies above 1019, 1019.5, and 1020 eV based first three years data taken.Received 20 April 2013DOI:https://doi.org/10.1103/PhysRevD.88.112005© 2013 American Physical Society
Nanohole optical tweezers have been used by several groups to trap and analyze proteins. In this work, we demonstrate that it is possible create high-performance double nanohole (DNH) substrates for trapping proteins without the need any top-down approaches (such as electron microscopy or focused-ion beam milling). Using polarization analysis, identify DNHs well determine their orientation then use them trapping. We are also able other hole configurations, such single, trimers clusters....
Selected mapping (SLM) is a well-known technique to reduce the peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM). SLM generally requires side information for each OFDM symbol, which leads decrease transmitting efficiency. In addition, false detection degrades bit error rate (BER) performance significantly. this paper, we propose novel scheme without any by devising phase rotation and simple scrambler receiver. Computer simulation results show that...
Time-resolved X-ray diffraction of muscle has demanded ever-increasing flux into small sample volumes with low beam divergence. Results are reported static and time-resolved small-angle studies on fibers using a hard undulator installed in the Tristan main ring at KEK, Tsukuba, Japan, as an innovative source synchrotron radiation more intense better collimated than that available Photon Factory bending-magnet beamline. Static used divergence to obtain detailed high-quality patterns stable...
We applied a two laser extraordinary Raman spectroscopy technique in double nanohole optical tweezers setup to excite and detect the vibrational modes of 20 nm polystyrene beads. measured quadrupolar accordion mode frequency be 47.85 GHz spherical breathing 68.72 which are very close their predicted values. According our measurements there is optimum power get sharp peaks beat spectrum, simultaneously. Improving resolution present system provides way more accurately changes resonance...
Using double nanohole (DNH) optical tweezer setup and applying two lasers, we trapped excited acoustic vibration modes of the PR65 subunit within protein phosphatase 2A (PP2A). Our experiment shows that vibrational are at frequencies 24.26 GHz, 32.80 48.47 57.97 GHz which matches to normal mode analysis results. This technique is single molecule label free compared typical methods used for characterization biomolecules. Characterizing can be as a paradigm understanding structural regulation...