Výsledky vyhledávání - "Hideaki Hirahara"

Akademický článek

Comparison of point-of-care peripheral perfusion assessment using pulse oximetry sensor with manual capillary refill time: clinical pilot study in the emergency department

Autor: Koichiro Shinozaki, Lee S. Jacobson, Kota Saeki, Hideaki Hirahara, Naoki Kobayashi, Steve Weisner, Julianne M. Falotico, Timmy Li, Junhwan Kim, Lance B. Becker

Publikováno v: Journal of Intensive Care, Vol 7, Iss 1, Pp 1-9 (2019)

Abstract Background Traditional capillary refill time (CRT) is a manual measurement that is commonly used by clinicians to identify deterioration in peripheral perfusion status. Our study compared a novel method of measuring peripheral perfusion usin

Externí odkaz: https://doaj.org/article/f31478558bb54bc9895447c3b0c43f89

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Mathematical Models of Synchronous Reluctance Motor Considering Iron Loss and Cross-Magnetic Saturation with Reciprocity Relation of Mutual Inductance

Autor: Takuya Kojima, Hideaki Hirahara, Shu Yamamoto

Publikováno v: IEEJ Journal of Industry Applications. 11:206-215

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6bb21bb17e8f3b411f8283a6c6c22464
https://doi.org/10.1541/ieejjia.21001783

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Stator-Flux-Linkage-Calculation-Based Torque Estimation of Induction Motors Considering Iron, Mechanical, and Stray Load Losses

Autor: Balapuwaduge Amith Shantha Gunasekara, Hideaki Hirahara, Shu Yamamoto, Masayuki Motosugi

Publikováno v: IEEE Transactions on Industry Applications. 57:5916-5926

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d753c60ba5e82b080e76013ab42ad52e
https://doi.org/10.1109/tia.2021.3110498

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A Method for Determining Equivalent Circuit Constant of Linear Induction Motors Using Locked Mover and Standstill Impedance Tests

Autor: Hideaki Hirahara, Mikito Inoue, Shu Yamamoto

Publikováno v: 2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia).

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a65a50b8f3c076c8cb65cefb11fbd2bc
https://doi.org/10.23919/ipec-himeji2022-ecce53331.2022.9806981

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Evaluation of accuracy of capillary refill index with pneumatic fingertip compression

Autor: Naoki Kobayashi, Kota Saeki, Hideaki Hirahara, Katsuyuki Horie, Steve Weisner, Timmy Li, Lance B Becker, Koichiro Shinozaki, Joshua W. Lampe, Julianne M. Falotico, Lee S. Jacobson

Publikováno v: Journal of Clinical Monitoring and Computing. 35:135-145

Capillary refill time (CRT) is a method of measuring a patient’s peripheral perfusion status through a visual assessment performed by a clinician. We developed a new method of measuring CRT using standard pulse oximetry sensor, which was designated

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cf96035d6e10a9b65df548ddb6e8c382
https://doi.org/10.1007/s10877-019-00454-1

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A Simple Method to Determine Double-Cage Rotor Equivalent Circuit Parameters of Induction Motors From No-Load and Locked-Rotor Tests

Autor: Takahiro Ara, Hideaki Hirahara, Akira Tanaka, Shu Yamamoto

Publikováno v: IEEE Transactions on Industry Applications. 55:273-282

This paper presents a simple method to determine double-cage rotor equivalent circuit parameters of induction motors (IMs). A new formula to calculate the double-cage rotor equivalent circuit parameters is proposed. The formula is sufficiently simple

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0501b308bc1bedd83d78bd4a8764395b
https://doi.org/10.1109/tia.2018.2864105

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Simple Design Method of Two-Degree-of-Freedom PID Position Controller Based on Pole-Zero-Assignment for Linear Servo Motors

Autor: Kenshiro Kuroki, Hideaki Hirahara, Shu Yamamoto

Publikováno v: 2020 23rd International Conference on Electrical Machines and Systems (ICEMS).

This paper presents an improved design method of Two-Degree-Of-Freedom (TDOF) PID position controller based on pole-zero-assignment suitable for Linear Servo Motor (LSM) drives. This method can be applied to both positioning and tracking drives by si

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d1d72e140ecda98650599ee479d373a6
https://doi.org/10.23919/icems50442.2020.9290854

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Strict Mathematical Model of Synchronous Reluctance Motors Considering Cross-Magnetic Saturation and Reciprocity Relation of Mutual Inductance

Autor: Takuya Kojima, Shu Yamamoto, Hideaki Hirahara

Publikováno v: 2020 23rd International Conference on Electrical Machines and Systems (ICEMS).

A unique approximation function of d- and q-axes inductances for Synchronous Reluctance Motors (SynRM) is shown. This approximation function has some excellent features: continuous and differentiable over the entire current range, taking into account

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::53e99227e9dc1cf0f9026d194c2b8b25
https://doi.org/10.23919/icems50442.2020.9290998

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On-Line Stator Resistance Estimation of Vector-Controlled Synchronous Reluctance Motors Using Inductance Information

Autor: Hideaki Hirahara, Shu Yamamoto, Ryotaro Eto

Publikováno v: 2020 IEEE Energy Conversion Congress and Exposition (ECCE).

An on-line stator resistance estimator for Vector-Controlled Synchronous Reluctance Motor (VC-SynRM) drives is presented. The proposed estimator entails realizing fast, accurate and simple stator resistance estimation by utilizing the property that "

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::272983ef620f425fd4d4e3fb9e03cacf
https://doi.org/10.1109/ecce44975.2020.9235694

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