A5005876993- Seismic Performance and Analysis
- Geotechnical Engineering and Underground Structures
- Structural Health Monitoring Techniques
- Structural Load-Bearing Analysis
- Optical Coherence Tomography Applications
- Structural Engineering and Vibration Analysis
- Advanced Fluorescence Microscopy Techniques
- Structural Behavior of Reinforced Concrete
- Photoacoustic and Ultrasonic Imaging
- Semiconductor materials and devices
- Physics of Superconductivity and Magnetism
- Geotechnical Engineering and Soil Stabilization
- Earthquake and Disaster Impact Studies
- Superconducting Materials and Applications
- Structural Analysis and Optimization
- Magnetic properties of thin films
- Structural Response to Dynamic Loads
- Particle accelerators and beam dynamics
- Neural Networks and Applications
- Earthquake and Tsunami Effects
- Electronic and Structural Properties of Oxides
- Vibration and Dynamic Analysis
- Probabilistic and Robust Engineering Design
- Magnetic Properties of Alloys
- Engineering Applied Research
Takenaka (Japan)
2014-2024
Japan Tobacco (Switzerland)
2023
Tokyo University of Science
2022-2023
Otsuka (Japan)
2021
Yamagata University
2015-2021
Kansai Electric Power (Japan)
2016-2020
Hiroshima University
2017-2018
University of Tübingen
2018
Research & Development Institute
2016-2017
Japan Tobacco (Japan)
2016
We present the transfer of spatially variant polarization topologically structured light to spatial spin texture in a semiconductor quantum well. The electron texture, which is circular pattern with repeating spin-up and spin-down states whose repetition rate determined by topological charge, directly excited vector vortex beam helicity structure. generated efficiently evolves into helical wave owing spin-orbit effective magnetic fields persistent helix state controlling number mode. By...
A triply fused tetracyclic macromolecular K(3,3) graph has been constructed through electrostatic self-assembly of a uniformly sized dendritic polymer precursor having six cyclic ammonium salt end groups carrying two units trifunctional carboxylate counteranions, and subsequent covalent conversion by the ring-opening reaction at an elevated temperature under dilution. The product was isolated from constitutional isomers means recycling SEC technique, as hydrodynamic volume is remarkably...
The hollow inner spaces of single-wall carbon nanotubes (SWCNTs) can confine various types molecules. Many remarkable phenomena have been observed inside SWCNTs while encapsulating organic molecules (peapods). However, a mixed electronic structure state the surrounding has impeded detailed understanding physical/chemical properties peapods and their device applications. We present single-chirality purification method for that encapsulate A single-chiral (11,10) with diameter 1.44 nm, which...
This paper reports on a technique to improve the coherence length of high-speed wavelength swept laser. The laser comprises pigtailed semiconductor optical amplifier and wavelength-scanning filter in fiber extended cavity configuration. operates 1310 nm region. tunable consists diffraction grating polygon mirror scanner. Littrow arrangement external specific geometry realizes quasi-phase continuous tuning over range emphasizing coherent amplification modes resulting spectral narrowing...
The induced magnetic anisotropy of Ni–Fe films has been shown to be related the crystal structure film. By use electron diffraction, vacuum-deposited was determined over composition range 5% 85% Ni, with substrate temperature during deposition at various temperatures in 25° 500°C. were deposited on single-crystal NaCl substrates. phase diagram this way boundaries which are fair agreement equilibrium for bulk material above 400°C and deviate markedly below 300°C. (α+γ) mixture disappears...
We present and demonstrate a swept source with large coherence length using quasi-phase continuous tuning (QPCT) technique. QPCT is method of minimizing the phase shift per round trip respect to tunable filter so that resonance lasing becomes high, resulting in high finesse during rapid sweep. The demonstrated consists fiber ring extended cavity laser diffraction grating polygon scanner-based configuration. projected beam on expanded multiple expanders achieve filter. an 18 nm range at 1060...
Simulation analysis is an effective method for the safety assessment of a building after earthquake. This kind evaluating foundations or piles, whose cannot be confirmed by visual check. In conducting these analyses, input motion should set to reproduce observed wave at point model. If model in linear range, can easily using frequency domain method, which most popular method. However, this setting difficult if (e.g., soil) exhibits non-linear behavior. cases, properties changes every time...
Summary For the risk assessment of airborne chemicals, a variety in vitro direct exposure systems have been developed to replicate chemical vivo. Since cells at air-liquid interface are exposed cigarette smoke as an aerosol systems, it is possible reproduce situation human respiratory system using this device. However difficult know whether consistent with retained tract. The purpose study clarify point CULTEX ® RFS module which recently system. purpose, solanesol and acetaldehyde were...
This paper presents the first successful demonstration of all-optical MEMS (microelectromechanical system) fiber endoscope for OCT (optical coherence tomography) measurement. A optical scanner spatial light modulation has been assembled in probe head (φ6mm) with components and a photovoltaic cell. Actuation energy is optically supplied by using 1.5µm 10mW, probing operated another wavelength at 1.3µm. Use both powering measurement makes safe that free from risk electrocution or...
Simulation analysis is an effective method for assessing building safety after earthquake. This kind of evaluating foundations or piles, whose cannot be confirmed by a visual check. During such analyses, the input motion should set to reproduce observed waves at points. In these cases, modal iterative error correction (MIEC) can used even if model exhibits nonlinear behavior. However, how choose mode difficult. Using selection singular value calculated decomposition, previous paper presented...
The purpose of this study is to develop a wireless FES rehabilitation system assist effective improvement the lower limbs. In report, prototype combined with foot drop correction and gait evaluation using surface electrical stimulator inertial sensors was developed tested right hemiplegic subject. For evaluation, limb joint angles segment were estimated by Kalman filter from data measured sensors. Electrical stimulation applied common peroneal nerve or tibialis anterior muscle detecting...
To reduce the response of buildings during earthquakes, use various hysteresis dampers for passive control is increasing. For effective application to buildings, these must meet both load displacement relationship and fatigue property requirements. In this study, shape optimization an Fe-Mn-Si-based alloy damper was conducted improve while maintaining target relationship, obtained optimized examined. First, using modal iterative error correction (MIEC) inverse analysis method. Subsequently,...
A new processing technique called non-harmonic analysis (NHA) is proposed for optical coherence tomography (OCT) imaging. Conventional Fourier-domain OCT employs the discrete Fourier transform (DFT), which depends on window function and length. The axial resolution of image, calculated by using DFT, inversely proportional to full width at half maximum (FWHM) wavelength range. FWHM range limited sweeping source in swept-source it number CCD pixels spectral-domain OCT. However, NHA process...
Abstract Objectives This in vitro study assessed the potential of tooth discoloration by aerosols generated from three heated tobacco products (HTPs) with different specifications: in‐direct heating system platform 1.0a (IT1.0a), 2.0a (IT2.0a), and direct 3.0a (DT3.0a). In addition, flavor types (regular, menthol, berry menthol) were selected for each HTP to characterize effect on discoloration. Material Methods Six bovine samples exposed directly one pack HTP: 350 puffs IT1.0a, 325 IT2.0a,...
Stacked gate dielectrics composed of CeO 2 and La O 3 were fabricated on Si substrates their structures electrical properties investigated. Two types stacked compared: grown (La /CeO ) (CeO /La ). The layers formed by atomic layer deposition (ALD) chemical vapor (CVD), respectively. structure showed a larger equivalent oxide thickness (EOT) than the due to silicate formation in contact with Si. Metal–oxide–semiconductor field-effect transistors (MOSFETs) capacitors constructed threshold...
Simulated earthquake motions whose response spectrums meet the multi target are often used while designing resistant nuclear power plant facilities. Therefore, it is advantageous to utilize simulated ground with phase characteristics of actual in design Several methods exist for generation these motions. However, cannot maintain properties A method generate that meets both spectrum and property requirements does not exist.
A prototype thin superconducting solenoid magnet has been developed to verify technical feasibility of an advanced with a magnetic field 2 T in cylindrical volume 3.4 m /spl phi//spl times/9 and transparency 1.2 radiation length (Xo). The is required have stored energy/effective cold mass (E/M) ratio 7.5 kJ/kg. goal successfully achieved realizing E/M=9.6 kJ/kg as result the R&D. development test results are presented.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML"...
We generally analyze data measured at equal time intervals using fast Fourier transforms (FFTs). However, when for some reason we can only obtain unequally spaced measurement points, then the become non-uniform and cannot be analyzed directly FFTs. In this paper, trapezoidal integral discrete transform (TINUDFT) is proposed to replace FFT, implemented in non-harmonic analysis (NHA) develop NHA (NUNHA) data. NUNHA improved SNR by over 70 dB compared with simple sinusoidal signal frequency....
In the design of joints and peripheral members shear panel dampers, sectional corresponding to increase in strength is required. Therefore, if a damper with small proof stress can be achieved, reasonable joint member done.