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Your search keyword '"Taiki Shinohara"' showing total 9 results
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9 results on '"Taiki Shinohara"'

1. Research on vibration characteristics of a bicycle with two infants (2nd report, effect of both the infant's weight and bicycle's specifications on occupants)

Author

Shinichiro OTA, Shuji NISHIYAMA, and Taiki SHINOHARA

Subjects
bicycle with two infant seats, human dynamics, simulation, vibration, vibration characteristics, Mechanical engineering and machinery, TJ1-1570, Engineering machinery, tools, and implements, TA213-215
Abstract

This paper describes the effect of vibration characteristics on a bicycle-rider-two infants system when the weight of infants and the seat position are changed. To examine vibration experienced by a rider and two infants, we investigated a vibration model on a bicycle-rider-two infants system and a simulation system. Input signals of the wheels were developed a sine waveform for the transient response and sine waveforms of a frequency from 1 to 20 Hz for the frequency response. Further, numerical analysis was performed by using these input signals. RMS (root-mean-square) values and P (peak) values were calculated for the evaluation of vibrations on infants and rider by the calculation. From these results, the relationship among the infant weight, the seat position and vibration characteristics of infants and rider was clarified by using the simulation system. Therefore, it was shown that the simulation system could be used as a tool to design the bicycle with a rider and two infants.

Published
2015
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5. A Closed-Form of 2-D Maximally Flat Diamond-Shaped Half-Band FIR Digital Filters with Arbitrary Difference of the Filter Orders

Author

Naoyuki Aikawa, Takashi Yoshida, and Taiki Shinohara

Subjects
Physics, Half-band filter, business.industry, Applied Mathematics, Diamond, engineering.material, Computer Graphics and Computer-Aided Design, Optics, Filter (video), Signal Processing, engineering, Electrical and Electronic Engineering, Closed-form expression, business, Digital filter
Published
2019
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6. A Closed-Form Transfer Function Of 2-D Maximally Flat Half-Band Fir Digital Filters With Arbitrary Filter Orders

Author

Naoyuki Aikawa, Takashi Yoshida, and Taiki Shinohara

Subjects
010302 applied physics, Half-band filter, 2D Filters, 020208 electrical & electronic engineering, Butterworth filter, 02 engineering and technology, Topology, 01 natural sciences, Adaptive filter, Filter design, Control theory, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Prototype filter, Network synthesis filters, m-derived filter, Mathematics
Abstract

2-D maximally flat diamond-shaped half-band linear phase FIR digital filters are used in sampling structure conversion. In some cases, this filter is expected to have different filter order for each dimension. However, the conventional methods can realize such filters only if difference between each order is 2, 4 and 6. In this paper, we proposed a closed-form transfer function of 2-D low-pass maximally flat diamond-shaped half-band FIR digital filters with arbitrary filter orders. The constraints to treat arbitrary filter orders are firstly proposed. Then, a closed-form transfer function is achieved by using Bernstein polynomial.

Published
2018
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8. A design method for 2-D low-pass maximally flat FIR digital filter to realize various passband shapes

Author

Naoyuki Aikawa, Yasuyuki Nishida, and Taiki Shinohara

Subjects
Finite impulse response, 020209 energy, Flatness (systems theory), Low-pass filter, 020208 electrical & electronic engineering, Astrophysics::Cosmology and Extragalactic Astrophysics, 02 engineering and technology, Topology, Transfer function, Filter design, 0202 electrical engineering, electronic engineering, information engineering, Electronic engineering, Digital filter, Passband, Astrophysics::Galaxy Astrophysics, Linear phase, Mathematics
Abstract

Two-dimensional (2-D) linear phase maximally flat finite impulse response (FIR) digital filters have flat passbands and stopbands. Conventionally, there are only fan-shaped or diamond-shaped. In this paper, we propose a method for designing 2-D low-pass maximally flat FIR digital filters that can realize various passband shapes. The proposed transfer function is achieved as a closed-form expression, and various passband shapes can be created by changing the filter order or flatness degree.

Published
2016
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9. S055015 Pilot-scale experiment of plasma-hybrid processing aftertreatment system for exhaust gas purification of marine diesel engine

Author

Masashi Kawai, Kenichi Hanamoto, Takuya Kuwahara, Tomoyuki Kuroki, Keiichiro Yoshida, Masaaki Okubo, Taiki Shinohara, and Kazutoshi Sato

Subjects
Diesel exhaust, Diesel particulate filter, business.industry, Pilot scale, Exhaust gas, Environmental science, Plasma, Exhaust gas recirculation, Diesel engine, business, Automotive engineering
Published
2012
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