Zobrazeno 1 - 10
of 158
pro vyhledávání: '"Kaiyuan Lu"'
Publikováno v:
Frontiers in Medicine, Vol 10 (2023)
BackgroundPudendal nerve block (PNB) is a commonly used anesthesia method that has been widely used in postoperative analgesia for hemorrhoids in recent years. Therefore, we conducted a systematic review and meta-analysis of double-blind randomized c
Externí odkaz:
https://doaj.org/article/c4f536225dcc444d95d709fb654cccf4
Publikováno v:
IEEE Access, Vol 9, Pp 40716-40727 (2021)
In the existing sensorless vector control system of permanent magnet synchronous motor (PMSM), direct differential calculation or phase-locked loop (PLL) control is often used to estimate the rotor speed, but this method has some problems of weak loa
Externí odkaz:
https://doaj.org/article/2f90e00af2764c8684fddf34643ca484
Publikováno v:
IEEE Access, Vol 9, Pp 33369-33384 (2021)
High-speed and high-precision position servo system of permanent magnet synchronous motor (PMSM) is the key part of the research and development of the manipulator’s joint. The active disturbance rejection control (ADRC) is one of the commonly used
Externí odkaz:
https://doaj.org/article/5a7ed81b3b7b4b29b792938de4ebaaca
Publikováno v:
IEEE Access, Vol 8, Pp 163186-163196 (2020)
Low-speed sensorless control of Permanent Magnet Synchronous Machine (PMSM) faces an intrinsic problem of increased position estimation error with increased load. This phenomenon is due to changed magnetic saliency caused by the load current on the m
Externí odkaz:
https://doaj.org/article/41d1a0588d844ca88d100f18f8e5113b
Publikováno v:
Energies, Vol 15, Iss 24, p 9287 (2022)
To identify the parameters of variable flux reluctance machines (VFRMs), the input voltage value is usually obtained from the reference voltage indirectly. However, the reference and actual voltages may be different due to the nonlinearity of the ope
Externí odkaz:
https://doaj.org/article/70e56046dcf04b83a5b1800e08a4a5f1
Publikováno v:
Ecotoxicology and Environmental Safety, Vol 213, Iss , Pp 112050- (2021)
Bisphenol A (BPA), an endocrine disruptor, exist in almost all waters. In the present study, we expose adult male Gobiocypris rarus rare minnow to 15 μg/L BPA to study the effect BPA on fish hepatic lipid metabolism. Following 1, 3 and 5 weeks expos
Externí odkaz:
https://doaj.org/article/27c1c7c155374580b8f506502efb4412
Autor:
Dong Wang, Kaiyuan Lu
Publikováno v:
Protection and Control of Modern Power Systems, Vol 3, Iss 1, Pp 1-9 (2018)
Abstract Wave energy collected by the power take-off system of a Wave Energy Converter (WEC) is highly fluctuating due to the wave characteristics. Therefore, an energy storage system is generally needed to absorb the energy fluctuation to provide a
Externí odkaz:
https://doaj.org/article/5740f82e8fca4850ab31fc36b2d3da85
Publikováno v:
CES Transactions on Electrical Machines and Systems, Vol 1, Iss 2, Pp 207-215 (2017)
High quality speed information is one of the key issues in machine sensorless drives, which often requires proper filtering of the estimated speed. This paper comparatively studies typical low-pass filters (LPF) and phase-locked loop (PLL) type filte
Externí odkaz:
https://doaj.org/article/796425f7734f40cfb5d1dbd055c883b2
Publikováno v:
IEEE Access, Vol 5, Pp 21660-21668 (2017)
In view of the light-emitting diode (LED) and its life prediction, despite its currently wide use, IES TM-21-11 parametric life prediction method is incapable to extrapolate under multidimensional conditions (include working environmental conditions)
Externí odkaz:
https://doaj.org/article/4f25e4a08ce84c5ebc8284719b0df8aa
Publikováno v:
Energies, Vol 13, Iss 20, p 5388 (2020)
A reluctance lead screw (RLS) is proposed in this paper which consists of a rotor and a translator, forming a magnetic device that is able to transfer low-speed linear motion into high-speed rotational motion. Permanent magnets (PMs) are only install
Externí odkaz:
https://doaj.org/article/639f45951bb94103a18f036bcadf6dff