Results 81 to 90 of about 83,304 (314)

Computationally Efficient Strand Eddy Current Loss Calculation in Electric Machines [PDF]

, 2019
A fast finite element (FE) based method for the calculation of eddy current losses in the stator windings of randomly wound electric machines is presented in this paper.
Chong, Yew Chuan, Demerdash, Nabeel, Fatemi, Alireza, Ionel, Dan M., Staton, Dave A., Wrobel, Rafal   +5 more
core   +1 more source

Tendon‐Driven Compliant Wheel‐Less Snake Robot for Undulatory Locomotion Using Conformable Ground Contacts

Advanced Intelligent Systems, EarlyView.
This study presents a tendon‐driven compliant snake robot that uses globally applied vertical bending and axial twisting along its body to enable various gaits. Body deflection from compliance and weight passively generates the ground contact patterns required for locomotion.
Serdar Incekara, Seongil Kwon, Gangil Kwon, Junhyoung Ha   +3 more
wiley   +1 more source

Enhanced Rotary Transformer-Based Field Excitation System for Wound Rotor Synchronous Motor

European Conference on Cognitive Ergonomics, 2019
Wound rotor synchronous motors are being increasingly considered for electric vehicle traction applications. In this regard, the rotary transformer-based field excitation system is considered one of the most viable option for the rotor winding excitation.
J. Haruna, T. Raminosoa, Jonathan Wilkins   +2 more
semanticscholar   +1 more source

Experimental Investigation of Microbubble Evolution in the Liquivac Multiphase Flow Pump

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This paper aims to experimentally investigate the mechanisms of microbubble characteristics evolution within an axial pump. The findings will aid in assessing the pump performance by identifying the range of bubble sizes and comparing them with the threshold size (< 300 μm). This study also provides evidence supporting the use of such pumps as
Hamad FA, Safa Najim, Keville Tony, Atma Prakash, Sajid Abdullah   +4 more
wiley   +1 more source

Field Current Control Strategy for Wound-Rotor Synchronous Motors Considering Coupled Stator Flux Linkage

IEEE Access, 2020
The direct axis (d-axis) stator winding and field winding of a wound-rotor synchronous motor (WRSM) are mutually coupled much like the primary and secondary windings in a transformer are. As the field winding has a large number of turns, small variations
Daeyeon Hwang, Bon-Gwan Gu
doaj   +1 more source

Force stimulation promotes nerve regeneration by restoring cellular energy

BMEMat, EarlyView.
Mechanical stimulation can help nerves regenerate in various ways. We developed two devices (a piezo‐motor‐driven stretching device and a SAW‐based actuator) to apply mechanical stimulation to sciatic nerve and DRG neurons. Our study shows that appropriate mechanical force stimulation can promote regeneration by restoring the energy supply to the ...
Zhe Wang, Chen Cai, Hetao Xie, Yupeng Yang, Lei Li, Nik Ahmad Nizam Nik Malek, Wan Hairul Anuar Kamaruddin, Meiwan Chen, Yuanhua Sang, Bing Ji, Zenan Wang   +10 more
wiley   +1 more source

Analysis of Effects of Magnetic Slot Wedges on Characteristics of Large Induction Motors

, 2011
Magnetic slot wedges are often used to improve starting performance of large induction motors. In this paper we have investigated – through simulation – the effects of the wedges on the performance characteristics of the motor and core losses under no ...
Dems, M., Komeza, K., Sykulski, J.K.
core  

Advances in Triboelectric Nanogenerators With Rotating Structure

Carbon Energy, EarlyView.
The rotating TENG has been widely studied for its superiorities of simple structure, high efficiency, and stable output. This review introduced the four different principles of rotating TENG and offered a thorough summary for performance and application research through three‐level classification. Importantly, the current existing problems, challenges,
Chuguo Zhang, Chunxu Xue, Yutong Chen, Yujie Qiang, Seeram Ramakrishna   +4 more
wiley   +1 more source

Antidiabetic Potential of Ligands from NEIST_PMIB_06, Bacterium Associated with Hawaijar (Fermented Soy Food): Insight from in Vitro and in Silico Studies

ChemFoodChem, EarlyView.
ABSTRACT In this study, a bacterium (NEIST_PMIB_06) was isolated from Hawaijar, a fermented soy food from Manipur, Northeast India. The bacterium was inoculated and incubated to isolate bioactive compounds. Liquid‐liquid extraction was performed to obtain extracts (cell‐free and cell‐based), and their efficacy was evaluated.
A Ibeyaima, Hiranmoy Barman, Prasenjit Manna   +2 more
wiley   +1 more source

An Improved Magnetic Equivalent Circuit Model for Electromagnetic Modeling of Electric Machines

Iranian Journal of Electrical and Electronic Engineering, 2021
Poor modeling of air-gap is the main defect of conventional magnetic equivalent circuit (CMEC) model for performance analysis of electric machines. This paper presents an improved magnetic equivalent circuit (IMEC) which considers all components of air ...
F. Rezaee-Alam, B. Rezaeealam, S. M. M. Moosavi   +2 more
doaj