Experimental verification of numerical simulations of cryosurgery with application to computerized planning

Using circuit method to analysis equations of circuit and motion of coil-coil Mechanism, numerical simulations were also made. Simple method of experimental verification was proposed. The numerical results show influence of circuit parameter and benefits of multiple series gaps.

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Experimental verification of the characteristic behaviors in passive dynamic walking

Artificial Life and Robotics ◽

10.1007/s10015-020-00670-y ◽

2021 ◽

Author(s):

Masatsugu Iribe ◽

Ryoichi Hirouji ◽

Daisuke Ura ◽

Koichi Osuka ◽

Tetsuya Kinugasa

Keyword(s):

Numerical Simulations ◽

Experimental Verification ◽

Chaotic Behavior ◽

Adaptive Behaviors ◽

Robot Design ◽

Legged Robot ◽

Dynamic Walking ◽

Passive Dynamic Walking ◽

Environment Changes

AbstractIt is well known that passive dynamic walking shows chaotic behavior owing to changes in the environment. In addition, when the environment changes continuously during walking, passive dynamic walking shows “adaptive behaviors” in which the stride angle changes itself in an attempt to keep walking. These behaviors are very interesting and useful for the legged robot design. However, the studies on passive dynamic walking are preceded only by numerical simulations. For this reason, it is very important to confirm, by actual experiments, whether these characteristic behaviors appear. In this paper, we verify the existence of these behaviors by several actual experiments.

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Modeling of a Simple Rotor With a Switching Crack and Its Experimental Verification

Journal of Vibration and Acoustics ◽

10.1115/1.2930251 ◽

1992 ◽

Vol 114 (2) ◽

pp. 217-225 ◽

Cited By ~ 19

Author(s):

Chong-Won Lee ◽

Jong-Seop Yun ◽

Oh Sung Jun

Keyword(s):

Numerical Simulations ◽

Experimental Verification ◽

Necessary Conditions ◽

Crack Opening ◽

Crack Identification ◽

Crack Model ◽

Identification Scheme

The switching crack model having two different stiffnesses, depending upon the crack status, is developed. The necessary conditions for the crack opening/closing states are then analytically derived from a simple rotor with a switching crack. The validity of the switching crack model and the crack opening/closing conditions is proved through numerical simulations and experiments, and a crack identification scheme based on the analysis is also proposed.

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In-pipe crack detection for multiple diameters using TE11 mode microwaves

International Journal of Applied Electromagnetics and Mechanics ◽

10.3233/jae-209305 ◽

2020 ◽

Vol 64 (1-4) ◽

pp. 39-46

Author(s):

Guanren Chen ◽

Takuya Katagiri ◽

Noritaka Yusa ◽

Hidetoshi Hashizume

Keyword(s):

Numerical Simulations ◽

Experimental Verification ◽

Crack Detection ◽

Theoretical Calculations ◽

Pipe Diameter ◽

Mode Converters

This study evaluated the effect of pipe diameter on the applicability of a technique using TE11 mode microwaves for in-pipe crack detection. Three TE11 mode converters of different inner diameters were designed based on theoretical calculations and verified via numerical simulations. The working bandwidths of these mode converters were 7.0, 4.0, and 1.9 GHz. Experimental verification was carried out using brass pipes with the corresponding three inner diameters, and with pipe lengths up to 21–25.5 m. An axial and a circumferential slit were introduced to simulate cracks and deployed at multiple positions along the pipes under test. The results showed that both axial and circumferential slits could be detected and located for an inner pipe diameter up to 39 mm and at a distance of 15 m–24 m.

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