Results 61 to 70 of about 2,595,447 (316)

Dynamical Modeling of Frequency Controlled Variable Speed Parallel Multistage Centrifugal Pumps

Archive of Mechanical Engineering, 2015
W artykule przedstawiono opracowanie modelu zespołu wielostopniowej elektrycznej pompy odśrodkowej składającego się z dwu czterostopniowych pomp ze stali nierdzewnej, z których każda jest napędzana trójfazowym silnikiem indukcyjnym o mocy 4 kW i ...
Khayatzadeh Farid, Ghafouri Jafar
doaj   +1 more source

Claudin‐6 Protein Expression in Atypical Teratoid/Rhabdoid Tumors Is Strongly Enriched in the Molecular Subgroup AT/RT‐TYR

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Claudin‐6 has emerged as a promising immunotherapeutic target, yet protein‐level data in atypical teratoid/rhabdoid tumors (AT/RTs) have been inconsistent. We analyzed 36 well‐characterized AT/RT samples and found membranous claudin‐6 protein expression in 58% of cases, with striking enrichment in the molecular subgroup AT/RT‐TYR (100%) and ...
Victoria E. Fincke, Christian Thomas, Michael C. Frühwald, Pascal D. Johann, Martin Hasselblatt   +4 more
wiley   +1 more source

Control of electric drives with high switching frequency operation capabilities: envisionning future prospects [PDF]

Industrial drives are currently of great relevance considering the technological challenges associated with climate change mitigation. Current technologies use silicon devices with switching frequencies around 10 kHz.
Repecho del Corral, Víctor, Arias Pujol, Antoni, Biel Solé, Domingo   +2 more
core   +1 more source

Investigation of Frequency Response Sharing-Induced Power Oscillations in VSC-HVDC Systems for Asynchronous Interconnection

Energies
Low-frequency power oscillations (LFPOs) may occur in voltage source converter-based high-voltage direct current (VSC-HVDC) systems when providing frequency support to asynchronously interconnected power grids.
Ke Wang, Chunguang Zhou, Yiping Chen, Yan Guo, Zhantao Fan, Zhixuan Li   +5 more
doaj   +1 more source

Hybrid Genetic Algorithm Fuzzy-Based Control Schemes for Small Power System with High-Penetration Wind Farms

Applied Sciences, 2018
Wind is a clean, abundant, and inexhaustible source of energy. However, wind power is not constant, as windmill output is proportional to the cube of wind speed. As a result, the generated power of wind turbine generators (WTGs) fluctuates significantly.
Mohammed Elsayed Lotfy, Tomonobu Senjyu, Mohammed Abdel-Fattah Farahat, Amal Farouq Abdel-Gawad, Liu Lei, Manoj Datta   +5 more
doaj   +1 more source

Heterogeneity in the Global Practice of Central Nervous System Staging in Pediatric Acute Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) involvement in childhood acute lymphoblastic leukemia (ALL) is assessed by cell counting and cytomorphology from cerebrospinal fluid (CSF) and is used for treatment stratification worldwide. The ratio of “CNS2” patients in clinical trials ranges from 3% to 40%, with unclear prognostic significance ...
Laura Almási, Bernadett Borbála Huszti, Gábor Barna, Marko Kavcic, Janez Jazbec, Lennart Lenk, Vera Münch, Sophia Polychronopoulou, Ágnes Márk, Maria Thastrup, Lüder H. Meyer, Kjeld Schmiegelow, Cornelia Eckert, Christina Halsey, Dániel J. Erdélyi   +14 more
wiley   +1 more source

Frequency-Power Control of VSWTG for Improved Frequency Regulation

, 2023
With increasing wind energy penetration and impending grid codes, it is important to enable wind-based power plants to provide sensitive frequency response in grids that may experience irregular frequency fluctuations with noise induced.
Asma Aziz (13059384), Amanullah Oo (13054650)   +1 more
core  

An Active Annular Ring Frequency Selective Surface [PDF]

, 2011
Offering good performance in terms of all polarizations affected and good angular stability, the ring element is a popular choice in frequency selective surface (FSS) designs.
Paul S. Taylor, Parker, Edward A., Edward A. Parker, John C. Batchelor, Batchelor, John C., Taylor, P.S.   +5 more
core   +1 more source

Structural-and-Parametric Optimization of Automatic Control System for Power Units of 300 MW in Wide Range of Load Variations

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2019
The structural-parametric optimization of the automatic control system for power units (ACSPU) of 300 MW of Lukoml’skaya GRES (Lukoml Local Condensing Power Plant) in the mode of both the permanent and the variable superheated steam pressure upstream of ...
K. I. Artsiomenka
doaj   +1 more source

Frequency and Voltage Control of an Inverter-Based DG Using Adaptive Fuzzy-Sliding Mode Controller [PDF]

Journal of Electrical and Computer Engineering Innovations, 2019
Background and Objectives: The microgrid voltage and frequency are strongly affected by active and reactive load fluctuations. Load change in microgrid may result in the lack of balance among generation and consumption and as a result change in output ...
E. Limuchi, A. Taher, B. Ganji
doaj   +1 more source