Results 61 to 70 of about 12,422,847 (291)

microRNA‐7‐5p and α‐Synuclein SAA Predict Parkinson's Disease Phenoconversion

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Corroborate blood neuron‐derived extracellular vesicle (NDEV) alpha‐synuclein (αSyn), the CSF αSyn seed amplification assay (αSyn‐SAA), and blood microRNA‐7‐5p (miR‐7‐5p) as markers for Parkinson's disease (PD) phenoconversion and determine if combining these markers would help select subjects who would be more likely to phenoconvert.
Shayan Zadegan, Praveen Velammal, Kanmani Muthiah, Madhu Jatty, Christopher Adams   +4 more
wiley   +1 more source

Control active power filter for improving power quality in the microgrid [PDF]

, 2013
This paper aims at improving the power quality with controlling method shunt active power filter in Micro- grid System. A hybrid compensation system consisting of an active filter and passive filters in the Micro-grid is discussed.
Mohd. Zin, Abdullah Asuhaimi, Naderipour, Amirreza, Tavalae, Jalal, Tavalaei, Jalal   +3 more
core   +1 more source

Study on Harmonic Suppression and Hybrid Series Active Power Filter [PDF]

Proceedings of the 2015 4th International Conference on Sensors, Measurement and Intelligent Materials, 2016
simulation. Abstract. This paper focuses on the generation and harm of power harmonic, and different measures on harmonic treatment. Analysis the Harmonic Suppression measures of Hybrid Series Active Power Filter. Result shows that the Hybrid Series Active Power Filter devices has the capacity advantages, which is appropriate to the compensation of ...
Huigang Xu, Xin Li, Xiangfei Meng
openaire   +1 more source

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

Advanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn, Sarah Kaden, Andrea Barz, Daniel Störzner, Jens Bliedtner, Andrés Fabián Lasagni   +5 more
wiley   +1 more source

Experimental Validation of Single Phase Series Active Power Filter Using Fuzzy Control Technique [PDF]

, 2018
The aim of this paper is illustrating and exposing the performance of a Series Active Power Filter (SAPF) with PI controller and Fuzzy controller within simulation and experimental validations. This performance is best manifested in compensating the sags
Abdelkhalek, Othmane, Ben Abdelkader, Abdallah Alla, Allali, Ahmed, Meftouhi, Abdelmalek, Toumi, Toufik   +4 more
core   +2 more sources

Transformerless series active power filter to compensate voltage disturbances [PDF]

, 2011
This paper presents a transformerless topology of series active power filter with capability to protect sensitive loads against harmonics, sags, swells and unbalances of the power system voltages.
Couto, Carlos, Afonso, João L., Carneiro, H., Pinto, J. G., Exposto, Bruno Fernandes   +4 more
core   +2 more sources

Design and implementation of a three-level active power filter for harmonic and reactive power compensation

, 2018
This paper presents a unified design and implementation of active power filters (APF) for medium-voltage high-power applications. A fast and accurate harmonic extraction technique based on the time transformation algorithm (TTA) is developed.
Zhuo, F, Kashif, M, Hossain, MJ, Gautam, S, Gautam, Samir, Zhuo, Fang, Hossain, M.J., Kashif, Muhammad   +7 more
core   +2 more sources

Power quality improvement of three-phase electrical systems using active-passive hybrid harmonic filter

Results in Engineering
An overreliance on nonlinear load can result in electric current harmonics, which will ultimately result in a decrease in the quality of the electrical power.
Khairul Anuar Mohd Nor, Noramalina Abdullah   +1 more
doaj   +1 more source

Power Quality Improvement by Unified Power Quality Conditioner Based on CSC Topology Using Synchronous Reference Frame Theory

The Scientific World Journal, 2014
This paper deals with the performance of unified power quality conditioner (UPQC) based on current source converter (CSC) topology. UPQC is used to mitigate the power quality problems like harmonics and sag.
Rajasekaran Dharmalingam, Subhransu Sekhar Dash, Karthikrajan Senthilnathan, Arun Bhaskar Mayilvaganan, Subramani Chinnamuthu   +4 more
doaj   +1 more source

Low-Loss Active Grid Impedance Cancellation in Grid-Connected Inverters with LCL Filter

Applied Sciences, 2019
Distributed power inverters with inductive capacitive−inductive (LCL) filters have become popular in distributed power generation system. However, due to unknown grid impedance, the inverters are confronted with challenges of local filter resonance,
Yuqi Peng, Yuanbin He, Lijun Hang
doaj   +1 more source