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Article
Evaluating convolutional neural network-enhanced electrocardiography for hypertrophic cardiomyopathy detection in a specialized cardiovascular setting
The efficacy of convolutional neural network (CNN)-enhanced electrocardiography (ECG) in detecting hypertrophic cardiomyopathy (HCM) and dilated HCM (dHCM) remains uncertain in real-world applications. This re...
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Article
Therapeutic strategy for persistent cloaca: the efficacy of antegrade continent enema as a salvage surgery
The aim of this study is to evaluate our therapeutic strategy for persistent cloaca from the viewpoint of long-term functional outcome.
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Article
Quasi-satellites of Jupiter
Two asteroids 2001 QQ199 and 2004 AE9 and two comets P/LINEAR-Catalina and P/LINEAR are found to be quasi-satellites of Jupiter at present time. The Tisserand parameters of these four bodies lie between 2.3 an...
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Article
Open AccessGeneral solution of the Kozai mechanism
Kinoshita and Nakai (Celest. Mech. Dyn. Astr. 75, 125–147, 1999) gave the analytical solution of the Kozai mechanism. In this solution the eccentricity and the inclination of a disturbed body take any value, b...
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Article
The Apsidal Antialignment of the HD 82943 System
We perform numerical simulations to explore the dynamical evolution of the HD 82943 planetary system. By simulating diverse planetary configurations, we find two mechanisms of stabilizing the system: the 2:1 m...
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Article
Analytical Solution of the Kozai Resonance and its Application
When Kozai (1962) studied the secular resonance of asteroids, he found the so-called Kozai resonance and expressed the analytical solution with the use of Weierstrass ℘. Here we discuss the case where the dist...
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Article
Successful laparoscopic cholecystectomy in a child with upper transverse scarring: Report of a case
Laparoscopic cholecystectomy (LC) was safely performed for cholelithiasis in a 4-year-old boy who had a long transverse operative scar in the upper abdomen as a result of intestinal surgery performed during th...
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Article
Long-term behavior of the motion of Pluto over 5.5 billion years
The motion of Pluto is said to be chaotic in the sense that the maximum Lyapunov exponent is positive: the Lyapunov time (the inverse of the Lyapunov exponent) is about 20 million years. So far the longest int...
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Chapter and Conference Paper
Long-Term Behavior of the Motion of Pluto Over 5.5 Billion Years
The motion of Pluto is said to be chaotic in the sense that the maximum Lyapunov exponent is positive: the Lyapunov time (the inverse of the Lyapunov exponent) is about 20 million years. So far the longest int...
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Chapter and Conference Paper
Preparation of YBCO Thin Films on Metallic Substrates by MOCVD
We have studied superconducting thin films to apply RF accelerating cavities. Y-Ba-Cu-O superconducting thin films were prepared on single crystal and metallic substrates by thermal MOCVD method. Ni based allo...
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Chapter and Conference Paper
Application of Superconducting Thin Films to RF Cavities
We have studied RF accelerating cavities using Niobium low-Tc superconducting thin films and YBCO high-Tc superconducting thin films. The size of cylindrical cavity was chosen so that the TM010 mode oscillated at...
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Article
Secular perturbations of fictitious satellites of uranus
Secular perturbations of fictitious satellites that are initially circular and in the equatorial plane of Uranus are discussed. Satellites located in the region where the solar perturbation is dominant become ...
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Article
Symplectic integrators and their application to dynamical astronomy
Symplectic integrators have many merits compared with traditional integrators:
- the numerical solutions have a property of area preserving,
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Chapter and Conference Paper
Numerical Integration Methods in Dynamical Astronomy
We review what kinds of numerical integrators are used by astronomers in the field of dynamical astronomy and to what problems they are applied. This review is based on the questionaires distributed mainly to ...
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Article
Numerical integration methods in dynamical astronomy
We review what kinds of numerical integrators are used by astronomers in the field of dynamical astronomy and to what problems they are applied. This review is based on the questionaires distributed mainly to ...
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Article
Note on secular perturbations between a retrograde body and a prograde body
Hirayama (1927) studied secular perturbations between a retrograde body and a prograde body by considering that the mean motion of the retrograde body is negative. In this paper we discuss the same problem by ...
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Article
Secular perturbations of asteroids in secular resonance
When the precessional rate of the orbital plane of an asteroid is nearly equal to that of Jupiter, the orbital inclination of the asteroid changes quite largely due to this near equality of their precessional ...
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Article
Motions of the perihelions of Neptune and Pluto
Five outer planets are numerically integrated over five million years in the Newtonian frame. The argument of Pluto's perihelion librates about 90 degrees with an amplitude of about 23 degrees. The period of t...
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Chapter and Conference Paper
Motions of the Perihelions of Neptune and Pluto
Five outer planets are numerically integrated over five million years in the Newtonian frame. The argument of Pluto’s perihelion librates about 90 degrees with an amplitude of about 23 degrees. The period of t...
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Article
Mars theory and its comparison with numerical integration
