A5027577456- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Magnetic properties of thin films
- Magnetic Properties and Applications
- Galaxies: Formation, Evolution, Phenomena
- Distributed Control Multi-Agent Systems
- Adhesion, Friction, and Surface Interactions
- Gamma-ray bursts and supernovae
- Advancements in Semiconductor Devices and Circuit Design
- Metallic Glasses and Amorphous Alloys
- Astrophysics and Star Formation Studies
- Nanowire Synthesis and Applications
- Homotopy and Cohomology in Algebraic Topology
- Surface Modification and Superhydrophobicity
- Surfactants and Colloidal Systems
- Astro and Planetary Science
- Adaptive optics and wavefront sensing
- Topological and Geometric Data Analysis
- Characterization and Applications of Magnetic Nanoparticles
- Adaptive Dynamic Programming Control
- Robotic Path Planning Algorithms
- X-ray Diffraction in Crystallography
- Thermal Expansion and Ionic Conductivity
- Control and Dynamics of Mobile Robots
- Reinforcement Learning in Robotics
Shizuoka University
2024
Honda (Japan)
2024
Kyoto College of Graduate Studies for Informatics
2022-2024
Kyoto University
2022-2024
Kanazawa Institute of Technology
2023
Colfax (United States)
2022
The University of Tokyo
2000-2016
Nagoya University
2011
CTI Engineering (Japan)
2000-2005
Shibuya (Japan)
2005
Abstract The Faint Object Camera and Spectrograph (FOCAS) is a Cassegrain optical instrument for the Subaru Telescope. Its capabilities include $6^\prime \phi$ FOV direct imaging, low-resolution spectroscopy ($R=250 \hbox{--} 2000$ with ${0\rlap {.}{}^{\mathrm {\prime \prime }}4}$ slitwidth), multi-slit polarimetry. We describe overall design of FOCAS, its observing functions, performance verification procedures that have been carried out.
We present spectropolarimetry of the Type Ic supernova SN 2002ap and give a preliminary analysis: data were taken at two epochs, close to one month later than visual maximum (2002 February 8). In addition we June 9 without analysis. The show development linear polarization. Distinct polarization profiles seen only in O I λ7773 multiplet/Ca II IR triplet absorption trough light Ca later, with latter showing peak as high ~2 %. intrinsic shows three clear position angles: 80 degs for continuum,...
We present new optical images ($B$, $V$, and H$\alpha$) of the archetypical starburst/superwind galaxy M82 obtained with 8.2 m Subaru Telescope to reveal detailed structures superwind-driven nebula high-latitude dark lanes. The emission-line is decomposed into (1) a ridge-dominated component comprising numerous filament/loop sub-structures whose overall morphology appears as pair narrow cylinders, (2) diffuse extended over much wider opening angle from nucleus. suggest that these two...
A P-atom was introduced at the A-site in metal-free perovskite A(NH4)X3 using diprotonated 1,3,5-triaza-7-phosphaadamantane (pta), where X are Br − , I and BF 4 anions, labeled as p-Br p-I p-BF ,...
A tensile strain on the order of a few percent was created in Ni thin films deposited flexible polyethylene naphthalate substrate, and strain-induced change magnetic anisotropy investigated. The easy axis reversibly switched by 90° application stress. orthogonal to applied in-plane saturation field or uniaxial energy changed linearly reaction up 2.3%. Moreover, large difference ∼0.3 T, which corresponds ∼7 × 104 J/m3, realized. effective magnetoelastic coupling constant almost independent...
Double wrapping: A new spiroborate-based double-stranded helicate was prepared from tetraphenol strands with a bipyridine unit in the middle and NaBH4. The X-ray single-crystallographic analysis revealed that adopts double helical structure, which two Na cations very short distance of 3.1 Å (see figure), were held center complex.
Faint object camera and spectrograph, FOCAS, is a Cassegrain optical instrument of Subaru telescope. It has capability 6 arcmin FOV direct imaging, low resolution spectroscopy, multi-slit spectroscopy as well polarimetry. Only the imaging mode been available so far. The overall design, observing functions, preliminary performance verifications FOCAS will be presented.
Abstract We performed deep $K'$-band imaging observations of 2 massive clusters, MS 0451.6$-$0305 at $z = 0.55$ and 0440.5$+$0204 0.19$, for searching counterparts the faint sub-mm sources behind these which would provide one deepest extremely red object (ERO) samples. Comparing our near-infrared images with optical taken by Hubble Space Telescope Subaru Telescope, we identified 13 EROs in fields. The sky distributions are consistent previous results, that there is a sign strong clustering...
Faint Object Camera And Spectrograph (FOCAS) is completed and now waiting for a commissioning run on the Subaru Telescope atop Mauna Kea. We have developed software system that includes control of FOCAS instruments, Multiple Slits (MOS) design, an analyzing package especially evaluating performances FOCAS. The consists several processes: network interface process, user central engine command dispatcher local units, data acquisition system. These processes are mutually controlled by passing...
The Faint Object Camera and Spectrograph, FOCAS, is a Cassegrain optical instrument of Subaru telescope. For its versatility, FOCAS has many components such as grisms, filters, polarizers. They are inserted in the collimated beam section 451 mm length. large pupil (90 diameter) wide field view (6 arcmin rigorous efforts were made developing, manufacturing assembling these components. resultant performance quite stable almost high that expected from design values. In text, overall...
In this study, we propose a distributed method for multi-agent systems to estimate global reference frame by constructing common all agents with only local measurements. Our is combination of formation control and similarity evaluation feature point matching. Here, design controller achieve prescribed configuration estimator construct frame, which calculates the between measured relative positions configuration. Then, quantify error range show that constructed best. The proposed requires...
We carried out a search for globular clusters in M82 by taking advantage of the relatively high resolution imaging and deep spectroscopic capabilities provided Faint Object Camera And Spectograph (FOCAS) on Subaru Telescope. Since is late-type galaxy, its cluster system provides basis comparison with our Galaxy or that M31. The archetypal starburst galaxy also constitutes an ideal target studying relation between interactions, starbursts, formation. First, we performed survey to pick up...
Faint Object Camera and Spectrograph, FOCAS, is a Cassegrain versatile optical instrument of Subaru telescope. Among various observing modes the multi-object spectroscopy (MOS) requires dedicated software suite which enables accurate positioning masks have over fifty slitlets on faint targets 6 arcminutes diameter field-of-view (FOV). We been developing three kinds software: image processing performing combining mosaic CCD images optics distortion correction, mask designing program (MDP) for...
In this article, we address a coordination-control problem of multiagent systems with various types relative measurements in unified way. To end, express the agents' own frames using frame transformation introduced article. This is expressed subset semidirect products, and it describes different practical measurement information, such as uncertain positions bearings. Second, distributed controller designed to achieve desired configuration ambiguity under class measurements. The combines...
In this paper, a VR-based training system to prevent leg weakness was developed. VR contents were created allow for enjoyable and continuous at home. The proposed also evaluated by Parkinson's disease patients elderly people. further improved based on feedback comments from social implementation.