http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
NOTES ON THREE-DIMENSIONAL WEAKLY SYMMETRIC SPACES
Kurashima, Kazuo,Oguro, Takashi,Sekigawa, Kouei Korean Mathematical Society 1999 대한수학회보 Vol.36 No.3
In the present paper, we describe the action of isometry groups of 30dimensional weakly symmetric spaces and classify 3-dimensional connected weaky symmetric spaces. Further, we determine 3-dimensional weakly symmetric spaces in terms of the eigen- values of the Ricci transformation.
NOTES ON KAHLER SURFACES WITH DISTINCT CONSTANT RICCI EIGENVALUES
Nihonyanagi, Terumasa,Oguro, Takashi,Sekigawa, Kouei Korean Mathematical Society 2003 대한수학회지 Vol.40 No.6
In this paper, we study a connected, simply connected homogeneous Kahler surface with distinct constant Ricci eigenvalues, and specify the local structure of them.
Akiko Takahashi,Ryuichi Oguro,Kenta Sakane 제어로봇시스템학회 2008 제어로봇시스템학회 국제학술대회 논문집 Vol.2008 No.10
This paper presents a torque and rotational speed estimation method for Line-start Induction Motor Operated Valves. Routine inspections are carried out to those valves, because Motor Operated Valves are used in the serious plant such as Power plant. And securing reliability is an extreme important matter for these systems. Movement environments in these plants are high temperature and humidity, so it is difficult to put sensors near motors. In such a case, we must find the trouble of the system without torque sensor or speed sensor. The proposal method can estimate the torque and rotational speed of induction motor by using time-series data of voltages and currents at the switchboard. Furthermore, we propose the parameter identification method of mutual inductance by comparing the inner and outer products between voltages and currents. First, a torque and rotational speed of induction motor are estimated. Next, a mutual inductance parameter is got. Last, the proposed estimation method is verified by results of experiment.