Yuki Hidaka
YOU?
Author Swipe
View article: Variable Flux Technology Expands the Frontiers of Motor Efficiency: Overview
Variable Flux Technology Expands the Frontiers of Motor Efficiency: Overview Open
View article: High Torque Density Wound Field Motor with Field Unit Structure
High Torque Density Wound Field Motor with Field Unit Structure Open
View article: Topology Optimization of Electrical Machines with Quantum Annealing Considering Nonlinear Magnetic Properties
Topology Optimization of Electrical Machines with Quantum Annealing Considering Nonlinear Magnetic Properties Open
View article: Magnet Reduction of V-shaped Interior Permanent Magnet Motor by Split Rotor and Non-Magnetic Wedge
Magnet Reduction of V-shaped Interior Permanent Magnet Motor by Split Rotor and Non-Magnetic Wedge Open
View article: Torque Improvement in Spoke-Type Interior Permanent Magnet Motors Using Resin-Unit-Type Shaft Fastening Structures
Torque Improvement in Spoke-Type Interior Permanent Magnet Motors Using Resin-Unit-Type Shaft Fastening Structures Open
This paper presents a novel rotor structure for spoke-type interior permanent magnet motors. In the proposed motor, the rotor is fastened to the shaft using a resin unit. Thus, the inner-side core, which is the leakage path for the magneti…
View article: Effective Data-driven Method Based on Bayesian Approach for Performance Estimation of Wound-field Motors
Effective Data-driven Method Based on Bayesian Approach for Performance Estimation of Wound-field Motors Open
View article: Torque Improvement Effect of Reverse-Phase Superimposition for Fault-Tolerance in Permanent Magnet Synchronous Motor
Torque Improvement Effect of Reverse-Phase Superimposition for Fault-Tolerance in Permanent Magnet Synchronous Motor Open
This paper presents reverse-phase superimposition method for fault-tolerance in permanent magnet synchronous motor to reduce torque ripple while maintaining torque level. When a motor winding fails, two problems occur: the torque level dec…
View article: Light-induced Melatonin Suppressions by 1000-Hz Flickering and Nonflickering Blue Light Conditions
Light-induced Melatonin Suppressions by 1000-Hz Flickering and Nonflickering Blue Light Conditions Open
Night bright light is known to suppress melatonin secretion. However, novel photoreceptors, named intrinsically photosensitive retinal ganglion cells, are mainly responsible for projecting dark/bright information to the superchiasmatic nuc…
View article: Mathematical-model-based Simulation Method for Wound Field Motors Using Alternative Flux Model by RBF-net
Mathematical-model-based Simulation Method for Wound Field Motors Using Alternative Flux Model by RBF-net Open
This paper presents a novel mathematical-model-based simulation method for wound field motors. In the proposed method, motor inductance is represented using an alternative magnetic flux model generated by a radial basis function network. C…
View article: Computed Tomographic Measurements of the Sulcus Angle of the Femoral Trochlea in Small-Breed Dogs with and without Medial Patellar Luxation
Computed Tomographic Measurements of the Sulcus Angle of the Femoral Trochlea in Small-Breed Dogs with and without Medial Patellar Luxation Open
Trochleoplasty is often performed in dogs with medial patellar luxation (MPL); however, the current guidelines on when to perform a trochleoplasty in dogs are vague. The sulcus angle (SA) is used to assess the femoral trochlear morphology …
View article: Prediction of Current-Dependent Motor Torque Characteristics Using Deep Learning for Topology Optimization
Prediction of Current-Dependent Motor Torque Characteristics Using Deep Learning for Topology Optimization Open
In this study, we propose a fast topology optimization (TO) method based on a deep neural network (DNN) that predicts the current-dependent motor torque characteristics using its cross-sectional image. The trained DNN is shown to provide t…
View article: Fast Shape Optimization for Improving Power Generation Characteristics of Claw-Pole Type Alternator Using Characteristic Approximation Function
Fast Shape Optimization for Improving Power Generation Characteristics of Claw-Pole Type Alternator Using Characteristic Approximation Function Open
This study proposes a novel multi-objective shape optimization method for a claw-pole type alternator. In the proposed method, the magnetic characteristics in the generation mode are represented using a simple mathematical model. Consequen…
View article: Glucose levels between the anterior chamber of the eye and blood are correlated based on blood glucose dynamics
Glucose levels between the anterior chamber of the eye and blood are correlated based on blood glucose dynamics Open
Glycemic control is essential to manage metabolic diseases such as diabetes. Frequent measurements of systemic glucose levels with prompt managements can prevent organ damages. The eye is a glucose highly demanding organ in our body, and t…
View article: Topology optimization of electrical devices using Gaussian filter
Topology optimization of electrical devices using Gaussian filter Open
In this paper, a novel topology optimization method, in which gaussian filter is selected as spatial smoothing method, is presented. By changing standard deviation parameter, strength of filtering operation can be adjusted in the present m…
View article: A Novel Rotor Structure of Claw-pole Motor Designed by Magnetomotive Force-based Simulation Method
A Novel Rotor Structure of Claw-pole Motor Designed by Magnetomotive Force-based Simulation Method Open
In this paper, we propose a novel rotor structure of claw-pole motor (CPM) to reduce harmonic iron loss. In order to realize this low iron loss structure, a magnetomotive force-based a simulation method is presented to clarify the cause of…
View article: Mathematical-model-based Simulation of an Automotive Alternator Considering the Operation of a Rectifying Circuit
Mathematical-model-based Simulation of an Automotive Alternator Considering the Operation of a Rectifying Circuit Open
This paper presents a method for the mathematical-model-based simulation of automotive alternators. In the proposed method, a rectifier and motor are expressed by an electrical circuit constant that includes resistance and inductance. More…
View article: Effects of a single-bolus bupivacaine injection into the coccygeal spinal canal of rabbits
Effects of a single-bolus bupivacaine injection into the coccygeal spinal canal of rabbits Open
It has been reported that drugs intended for epidural administration through the lumbosacral junction are accidentally administered into the subarachnoid space frequently in rabbits. Therefore, we evaluated the epidural single-bolus inject…
View article: Falling Motion for Drop Impact Absorbing by a One-Legged Robot With Soft Outer Shells and Joint
Falling Motion for Drop Impact Absorbing by a One-Legged Robot With Soft Outer Shells and Joint Open
Life-size humanoid robots are expected to replace work at disaster sites, but there is little discussion about a quick introduction to the site. We will consider parachute descent as quick. In this case, we focus on landing impact, which i…
View article: Shortened Measurement Time of Functional Visual Acuity for Screening Visual Function
Shortened Measurement Time of Functional Visual Acuity for Screening Visual Function Open
The functional visual acuity test which is the average of the visual acuities measured during a specific time frame (standard, 60 seconds) has been used recently to assess the visual function in various conditions. The availability of a sh…
View article: Protein Tyrosine Phosphatase Inhibitor, Orthovanadate, Induces Contraction <i>via</i> Rho Kinase Activation in Mouse Thoracic Aortas
Protein Tyrosine Phosphatase Inhibitor, Orthovanadate, Induces Contraction <i>via</i> Rho Kinase Activation in Mouse Thoracic Aortas Open
Orthovanadate (OVA), a protein tyrosine phosphatase inhibitor, induces contraction in endothelium-denuded mouse thoracic aortas. OVA-induced contraction was significantly (vs. control rings) suppressed by Rho kinase (Y-27632, 10 µM), extra…
View article: Predictive factors for better short-term outcome in idiopathic epiretinal membrane after pars plana vitrectomy
Predictive factors for better short-term outcome in idiopathic epiretinal membrane after pars plana vitrectomy Open
View article: 1C4-1 Effects of Flicker and Non-flicker Light on Melatonin Secretion
1C4-1 Effects of Flicker and Non-flicker Light on Melatonin Secretion Open
View article: Three-Dimensional Shape Optimization of Claw-Pole-Motors
Three-Dimensional Shape Optimization of Claw-Pole-Motors Open
This paper presents three-dimensional shape optimization of claw-pole motors.In the present method, the iron core of a claw-pole motor is subdivided into uniform voxel finite elements.The material attribute of each element, {1(core), 0(air…
View article: Protein tyrosine phosphatase inhibitor, orthovanadate, induces vasoconstriction and vasorelaxation in mouse thoracic aortas
Protein tyrosine phosphatase inhibitor, orthovanadate, induces vasoconstriction and vasorelaxation in mouse thoracic aortas Open
Background: Orthovanadate (OVA), a protein tyrosine phosphatase inhibitor, induced vasoconstriction in rat thoracic aortas and mesenteric arteries, which was abolished by Src, epidermal growth factor (EGF) receptor (EGFR), extracellular si…
View article: Preventive Effect of Morning Bluish LED Light on Light-induced Melatonin Suppression at Night
Preventive Effect of Morning Bluish LED Light on Light-induced Melatonin Suppression at Night Open
Bright nocturnal light has been known to suppress melatonin secretion. However, bright light exposure during daytime might reduce light-induced melatonin suppression (LIMS) at night. This study aims to evaluate the effect of high correlate…
View article: C6-4 Effects of Flicker and Non-flicker Light on Melatonin Secretion Suppression
C6-4 Effects of Flicker and Non-flicker Light on Melatonin Secretion Suppression Open
View article: Age, eye dominance, and phoria cause errors in measurement of objective refractions
Age, eye dominance, and phoria cause errors in measurement of objective refractions Open
View article: Robust Optimization Considering Probabilistic Magnetic Degradation
Robust Optimization Considering Probabilistic Magnetic Degradation Open
This paper presents robust topology optimization of electromagnetic machines by considering the magnetic degradation caused by mechanical and thermal stresses in punching, shrinking fitting, and other manufacturing processes. The topology …