Results 31 to 40 of about 9,985 (277)

Quality Assurance Testing for Screening Defective Aluminum Die-cast Rotors of Squirrel Cage Induction Machines [PDF]

, 2018
The recent trend in squirrel cage induction motor manufacturing is to replace fabricated copper rotors with aluminum die-cast rotors to reduce manufacturing cost to stay competitive in the global market. Porosity in aluminum die-cast squirrel cage rotors
Gyftakis, Konstantinos N., Jeong, Myung, Lee, Sang Bin, Park, Yonghyun, Yun, Jangho   +4 more
core   +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  

Local weak observability conditions of sensorless AC drives [PDF]

, 2015
Alternating current (AC) electrical drive control without mechanical sensors is an active research topic. This paper studies the observability of both induction machine and synchronous machine sensorless drives.
Duc, Gilles, Koteich, Mohamad, Maloum, Abdelmalek, Sandou, Guillaume   +3 more
core   +3 more sources

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source

Optimum supply for an inverter-fed cage induction motor at different load conditions [PDF]

, 2008
The effects of power supply on the energy efficiency of a form-wound cage induction motor are studied when the motor operates under light loads. The cage induction motor is modelled with the space and time discretized finite-element analysis.
Arkkio, Antero, Islam, M. Jahirul
core  

Electroactive Liquid Crystal Elastomers as Soft Actuators

Advanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source

Performance and Safety Improvement of Induction Motors Based on Testing and Evaluation Standards

CES Transactions on Electrical Machines and Systems
The induction motor, which converts electrical energy into mechanical energy, has been recognized as the cornerstone of industrialization. The rotor of an induction motor can be either a squirrel cage rotor or a wound-type rotor, both existing as ...
Nkosinathi S. Khumalo, Ntombizotwa P. Memane, Udochukwu Bola Akuru   +2 more
doaj   +1 more source

Targeting the ARRDC3–DRP1 Axis via hUMSC‐Derived Exosomal CRYAB for Neuroprotection in Cerebral Ischemia/Reperfusion Injury

Advanced Healthcare Materials, EarlyView.
Intranasally administered hUMSC‐derived exosomes modulate the CRYAB–ARRDC3–Drp1 axis, alleviating mitochondrial dysfunction and ferroptosis, enhancing neuronal survival, reducing oxidative stress, and promoting functional recovery in ischemia‐reperfusion injury, offering a promising therapeutic strategy for ischemic stroke.
Rong ji, Zengyu Zhang, Zhuohang Liu, Kaicheng Yang, Xueyu Mao, Min Chu, Yong Wang, Jing Zhao   +7 more
wiley   +1 more source

Voltage dip generator for testing wind turbines connected to electrical networks [PDF]

, 2011
This paper describes a new voltage dip generator that allows the shape of the time profile of the voltage generated to be configured. The use of this device as a tool to test the fault ride-through capability of wind turbines connected to the electricity
Abbesa, Atienza, C. Veganzones, C.A. Platero, D. Ramirez, F. Blazquez, F. Gordillo, Flannery, Garnacho, J. Merino, J.A. Sanchez, J.R. Arribas, Ledesma, N. Herrero, Rahimi, Rodriguez, S. Martinez, Sanchez, Santos-Martin, Slemon, Tsili, Veganzones   +21 more
core   +2 more sources

Stiff to Soft: A Protein‐Based Buffer Layer for Improving the Long‐Term Performance of Microneedle Sensors

Advanced Materials, EarlyView.
To enhance stability and long‐term biocompatibility of wearable microneedle sensors, a crosslinking‐recombination bovine serum albumin material is used as a buffer layer coated on microneedle sensors. This coating layer possesses a unique stiff‐to‐soft transition function balancing the mechanical stiffness desired for puncturing and soft required for ...
Lihao Guo, Youbin Zheng, Shuxiang Xu, Bingbing Feng, Kan Wang, Rou Huang, Gandong Zhou, Chutong Liu, Rawan Omar, Danyao Qu, Jinbao Li, Min Zhang, Weiwei Wu, Guangjian Zhang, Lina Huang, Hossam Haick, Miaomiao Yuan   +16 more
wiley   +1 more source