Search Results 1-20 of 130

Ji Un Cig

We study the displacement operators within the framework of quantum white noise calculus. The displacement operators are characterized by implementation problems which are equivalent to linear differe …

数理解析研究所講究録 (2089), 53-70, 2018-08

IR 

ISATO Masayuki , SAWA Koichiro , UENO Takahiro

… In recent years, as compact and high output DC motors have been developed due to advanced technology, the faster the rotational speed is required and the commutation arc causes a high rate of wear/erosion of brush and commutator. … Therefore, it is important how the motor speed influences commutation phenomena such as arc duration, residual current and erosion and wear of commutator and brush in order to achieve high reliability and extensive lifespan. …

IEICE Transactions on Electronics E100.C(9), 716-722, 2017

J-STAGE 

Tamura Hiroshi , Zagrebnov Valentin A.

… The corresponding dual W*-dynamical system is shown to be unital quasi-free and completely positive automorphisms of the canonical commutation relation-algebra. …

Journal of Mathematical Physics 57(2), 23519, 2016-02-01

IR 

Suzuki Yutaro , Iinuma Masataka , Hofmann Holger F.

Meeting Abstracts of the Physical Society of Japan 70.2(0), 496, 2015

J-STAGE 

Watanabe Takuya , Urabe Jiichiroh

We give a necessary and sufficient condition for a homogeneous partial differential equation in two variables to be reduced to a homogeneous ordinary one under a certain change of variables. It is des …

Funkcialaj Ekvacioj 56(2), 225-247, 2013

J-STAGE 

LIU Liqing , SAWA Koichiro , TANAKA Hidenori , UENO Takahiro

… Brush and commutator of DC motor during commutation, large control domintatal in arc generated wear, performance and so on. … Generally a commutator consists of several segments, and commutation current curve and arc duration are different from each commutator segment. … We have made a device that can measure the commutation curve of the each commutator segment and the arc duration. …

IEICE technical report 110(270), 171-174, 2010-11-04

References (5)

Hiroshima Fumio , Kuribayashi Sotaro , Sasaki Itaru

By weak Weyl relations it is shown that momentum operators, -iderxj , defined on Cinfty0(omega) with some general open set omegasubsetRn are not essentially self-adjoint but have uncountably many self …

JMI 2, 21-25, 2010

IR 

Arai Asao

Letters in Mathematical Physics 87(1-2), 67-80, 2009-02

IR 

Arai Asao

Letters in Mathematical Physics 85(1), 15-25, 2008-07

IR 

Arai Asao , Matsuzawa Yasumichi

Hokkaido University Preprint Series in Mathematics (909), 1-28, 2008-04-25

IR  DOI