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Fast Linear solvers for electromagnetic field analysis on parallel computing environments are discussed. The preconditioned conjugate gradient (PCG) using incomplete Cholesky (IC) decomposition has been used for finite element analysis so far. However, the IC preconditioning is not suited to parallel computing due to forward/backward substitutions. For this reason, a variable preconditioning in which...
Deep Learning also called Deep Neural Network (DNN) has a deep hierarchy that connect multiple internal layers for feature detection and recognition learning. DNNs are emerging fast and will continue to grow together with feature detection methods. In previous work, we applied deep learning for vegetable object recognition and explored the Convolutional Neural Network (CNN). In this paper, we propose...
In recent years, Ambient Intelligence (AmI) has attracted increased attention within the advanced technology industry in an effort to modernize and develop a more intelligent and reliable information system. Technologies to detect a specific object in images are expected to further expand to wide range of applications, such as car detection functions for intelligent transport system and other systems...
This research proposes a novel low-voltage inverter-fed motor drive with variable characteristics which is achieved through the individual armature winding current control for the automobile traction motor. The independent armature winding with low-voltage inverters can improve the total efficiency by reducing the converter losses. Furthermore, when the inverters are able to change their connections...
Wireless Sensor and Actuator Networks (WSANs) have emerged as a variation of wireless sensor networks. WSANs are capable of monitoring physical phenomenons, processing sensed data, making decisions based on the sensed data and completing appropriate tasks when needed. Many surveillance cameras are used in facilities in order to keep secure environment. Human operators are now physically unable to...
This research proposes a novel low-voltage inverter-fed motor drive with variable characteristics achieved through the individual winding current control for the automobile traction motor. The independent armature winding with low-voltage inverters can improve the total efficiency by reducing the converter losses. Furthermore, the motor can expand the operating range since the inverters are able to...
In recent years, Ambient Intelligence (AmI) has attracted increased attention within the advanced technology industry in an effort to modernize and develop a more intelligent and reliable information system. Technologies to detect a specific object in images are expected to further expand to wide range of applications, such as car detection functions for Intelligent Transport System (ITS) and other...
A traction motor system of electric vehicles (EVs) requires wide torque-speed operation range, high efficiency, and low torque ripple according to its driving point. To achieve the requirements without increasing motor size, a novel variable characteristics motor system is proposed in this paper. A winding structure is studied to reduce unprofitable conductor which makes conduction loss. The developed...
Along with the concomitant rise in foreign residents in Japan has come the need to improve understanding at several social levels. The need for clear communication is most immediate in the area of the emergency or health care fields. Several types of apps exist that can be used to assist with communication between Japanese medical staff and foreign patients. However, there are problems with ease of...
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