Results 21 to 30 of about 4,674,131 (308)

Modifiable Factors Associated with Elevated Mean Arterial Pressure and Wide Pulse Pressure After Lower Limb Loss

Journal of Vascular Diseases
Objectives: This study aimed to identify factors associated with mean arterial pressure and pulse pressure, while considering non-modifiable factors. Methods: This study was a retrospective cross-sectional analysis of adults with lower limb loss and no ...
Samantha Stauffer, Ryan Pohlig, Frank Sarlo, John Horne, Jaclyn Sions   +4 more
doaj   +1 more source

Analysis of Core Loss of Permanent Magnet Synchronous Machine for Vehicle Applications under Different Operating Conditions

Applied Sciences, 2020
Permanent magnet synchronous machines (PMSMs) are widely used in electric vehicles due to their high power density, high efficiency, etc. Core losses account for a significant component of the total loss in PMSMs.
Guohui Yang, Shuo Zhang, Chengning Zhang
doaj   +1 more source

Differential Inverters: A General Design Procedure Integrating a Novel Power Losses Modeling Approach for Utilized DC–DC Modules at Different Modulation Schemes

IEEE Access, 2023
Differential inverters develop the PWM of internal DC-DC modules by correlating fundamental frequency of load with high switching frequency to maintain inherent characteristic operation and achieve pure higher/lower AC output voltage with smaller size ...
Ahmed Shawky, Mokhtar Aly, Jose Rodriguez   +2 more
doaj   +1 more source

Nonlinearity Estimation and Compensation for Accurate PMSM Modeling and Voltage Prediction

CES Transactions on Electrical Machines and Systems
For permanent magnet synchronous machine (PMSM), the machine model is critical to predict the operating states for motor control, which, however, can be greatly affected by system nonlinearities.
Beichen Ding, Yuting Lu, Chunyan Lai, Weiwen Peng, Kaide Huang, Guodong Feng   +5 more
doaj   +1 more source

Core Loss Analysis of Interior Permanent Magnet Synchronous Machines under SVPWM Excitation with Considering Saturation

Energies, 2017
Core loss is one of the significant factors affecting the high power density of permanent magnet machines; thus, it is necessary to consider core loss in machine design. This paper presents a novel method for calculating the core loss of permanent magnet
Yanli Feng, Chengning Zhang
doaj   +1 more source

High Performance Planar Magnetics Based on an Unbalanced-Flux Approach

IEEE Open Journal of Power Electronics, 2023
This paper presents a new design concept to increase the efficiency and the power density of planar magnetics. In contrast to the existing magnetics, which are built using the balanced magnetic flux density design, the proposed design concept generates ...
Sobhi Barg, Souhaib Barg, Kent Bertilsson   +2 more
doaj   +1 more source

Finite Element Modeling and Analysis of High Power, Low-loss Flux-Pipe Resonant Coils for Static Bidirectional Wireless Power Transfer

Energies, 2019
This paper presents the optimal modeling and finite element analysis of strong-coupled, high-power and low-loss flux-pipe resonant coils for bidirectional wireless power transfer (WPT), applicable to electric vehicles (EVs) using series-series ...
Babatunde Olukotun, Julius Partridge, Richard Bucknall   +2 more
doaj   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan, Michael Abele, Calogero Virgone, Michaela Kuhlen, Ricardo Lopez‐Almarez, Tal Ben‐Ami, Ewa Bien, Maja Cesen, Malgorzata A. Krawczyk, Andrea Ferrari, Gianni Bisogno, Yves Reguerre, Dominik T. Schneider, Louise Galmiche, Jorg Fuchs, Sarah Braungart, Bilgehan Yalcin, Ines B. Brecht, Daniel Orbach   +18 more
wiley   +1 more source

Core Loss Prediction Model of High-Frequency Sinusoidal Excitation Based on Artificial Neural Network

Magnetochemistry
The magnitude of core loss is a crucial factor affecting the efficiency of power converters. Due to the complex mechanism of core loss, diverse influencing factors, and the strong coupling characteristics between materials and operating conditions ...
Cunhao Lu, Fanjie Meng, Jiajie Zhang, Zeyuan Zhang   +3 more
doaj   +1 more source

Effect of Annealing Prior to Cold Rolling on the Microstructure Evolution and Energy Losses of Low-Si, Ultra-Low-C Hot-Rolled Electrical Steel

Metals, 2020
The microstructure of a low Si, ultra-low-C, hot-rolled electrical steel strip is modified by annealing at T < To, the α→γ transformation temperature.
Héctor Ortiz Rangel, Armando Salinas Rodríguez, Omar García Rincón   +2 more
doaj   +1 more source