Results 81 to 90 of about 18,501,661 (355)

A Human Rights Based Approach to Refugees: A Look at the Syrian Refugee Crisis and the Responses from Germany and the United States [PDF]

, 2014
Power Quality (PQ) has gained a lot of importance in the last decade. Several solutions to power quality problems have been proposed and developed. With the advent of solid state technology and power electronics in the power system protection devices ...
Momin, Suman
core   +1 more source

Power Quality Improvement Wind Energy System Using Cascaded Multilevel Inverter [PDF]

, 2013
In this paper, a wind energy conversion system based on a cascaded H-bridge multilevel inverter (CHBMLI) topology has been proposed to be used for the grid interface of large split winding alternators (SWAs).
A. S., Kumar, J.S., Sathiyanarayanan
core   +2 more sources

A support vector regression-based interval power flow prediction method for distribution networks with DGs integration

Frontiers in Energy Research
In distribution networks with distributed generators (DGs), power generation and load demand exhibit increased randomness and volatility, and the line parameters also suffer more frequent fluctuations, which may result in significant state shifts ...
Xiaorui Liang, Huaying Zhang, Qian Liu, Zijun Liu, Huicong Liu   +4 more
doaj   +1 more source

Hematopoietic (stem) cells—The elixir of life?

FEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo, Jonah Anderson, Emilie Dinh Vedrenne, Noël Yeh Martín, Jette Lengefeld   +4 more
wiley   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

Power quality improvements through power electronic interfaced distributed generation [PDF]

, 2010
In low-voltage distribution networks a large amount of single-phase nonlinear loads are connected. This leads to the combined presence of power system unbalance and harmonic distortion.
Degroote, Lieven, Meersman, Bart, Renders, Bert, Vandevelde, Lieven, Vandoorn, Tine   +4 more
core   +1 more source

Power quality disturbance classification based on time-frequency domain multi-feature and decision tree

Protection and Control of Modern Power Systems, 2019
Accurate classification of power quality disturbance is the premise and basis for improving and governing power quality. A method for power quality disturbance classification based on time-frequency domain multi-feature and decision tree is presented ...
Wenjing Zhao, Li-qun Shang, Jinfan Sun
semanticscholar   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Power quality improvement of synchronous generators using an active power filter [PDF]

, 2018
Active power filters (APF) are used to improve power quality and are commonly connected in parallel with the load at the point of common coupling (PCC).
Abu-Jalala, Al-Hussein Mohammed, Brown, Neil, Cox, Tom, Gerada, Christopher, Hamiti, Tahar, Rashed, Mohamed   +5 more
core   +2 more sources

Identification method of all-operating-point admittance model for wind farms considering frequency-coupling characteristics

International Journal of Electrical Power & Energy Systems
Admittance identification is an effective tool to solve the issue of black-box admittance modeling in wind farms. However, due to the large operating range of wind farms, it is difficult to accurately identify the admittance model of wind farms under all
Zilin Zhang, Wenhua Wu, Zhiwei Xie, Yandong Chen, Yuancan Xu, Shixiang Cao, Zhihao Dai   +6 more
doaj   +1 more source