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481
Analytical Inertia Identification of Doubly Fed Wind Farm with Limited Control Information Based on Symbolic Regression
Published 2025-08-01“…First, a dynamic model for the inertia response of DFIG wind farms is established, and a mathematical expression for the equivalent virtual inertia time constant under different control strategies is derived. Based on this, a nonlinear function library reflecting frequency-active power dynamic is constructed, and a symbolic regression model representing the system’s inertia response characteristics is established by correlating operational data. …”
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482
Frequency Regulation of AUT Microgrid Using Modified Fuzzy PI Controller for Flywheel Energy Storage System
Published 2019-06-01“…In conventional method, the machine-side inverter sets the active power and machine flux while grid-side inverter sets the reactive power and common DC bus voltage by conventional PI current controllers. …”
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483
Effects of nitrogen application rates on antioxidant contents and antioxidative activities in Chinese cabbage (Brassica chinensis L.)
Published 2009-05-01“…Highest contents of ascorbic acid, total phenolics, flavonoid, and DPPH (1,1-diphenyl-2-picrylhydrazyl) radical scavenging rate and FRAP (ferric reducing antioxidant power) value were recorded in the control (0 mg N·kg<sup>-1</sup>). …”
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484
An Intelligent Technique for Coordination and Control of PV Energy and Voltage-Regulating Devices in Distribution Networks Under Uncertainties
Published 2025-07-01“…The study began by running a centralized AC optimal power flow (CACOPF) and using the hourly PV output power and the load demand to determine the optimal active and reactive power of the PVSIs, the setpoint of the DSTATCOM, and the optimal tap setting of the OLTC. …”
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485
3D printable one-part alkali-activated mortar derived from brick masonry wastes
Published 2024-12-01“…The exponential growth in demand for housing has resulted in a greater focus on rapid construction methods that adhere to circular economy principles. 3D concrete printing is becoming a powerful tool to find solutions to the common challenges of affordable housing for more people, rapid construction, and the digitalization of the construction industry. …”
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486
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487
The Effectiveness of Extracts of Spent Grape Pomaces in Improving the Oxidative Stability of Grapeseed Oil
Published 2024-11-01“…Ultrasound-assisted extraction maximized the total phenolic content and antioxidant activity, with the latter measured according to the ferric reducing antioxidant power. …”
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488
Effect of age on complexity and causality of the cardiovascular control: comparison between model-based and model-free approaches.
Published 2014-01-01“…We found that: 1) MF approaches are more efficient than the MB method when nonlinear components are present, while the reverse situation holds in presence of high dimensional embedding spaces; 2) the CE method is the least powerful in detecting age-related trends; 3) the association of HP complexity on age suggests an impairment of cardiac regulation and response to STAND; 4) the relation of SAP complexity on age indicates a gradual increase of sympathetic activity and a reduced responsiveness of vasomotor control to STAND; 5) the association from SAP to HP on age during STAND reveals a progressive inefficiency of baroreflex; 6) the reduced connection from HP to SAP with age might be linked to the progressive exploitation of Frank-Starling mechanism at REST and to the progressive increase of peripheral resistances during STAND; 7) at REST the diminished association from RESP to HP with age suggests a vagal withdrawal and a gradual uncoupling between respiratory activity and heart; 8) the weakened connection from RESP to SAP with age might be related to the progressive increase of left ventricular thickness and vascular stiffness and to the gradual decrease of respiratory sinus arrhythmia.…”
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489
Immobilization of Enzyme–Polymer Hybrids and Nanozymes Through Electrostatic Interactions: Toward Multicatalytic Microreactors with Controlled Nanoarchitecture
Published 2025-08-01“…The layer‐by‐layer approach offers the possibility of assembling various building blocks onto templates of different sizes and shapes, thus representing a powerful tool for fabricating multicatalytic reactors with controlled nanoarchitecture. …”
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490
THromboprophylaxis In Sickle Cell Disease with central venous catheters (THIS): an internal pilot randomised controlled trial protocol
Published 2024-01-01“…Prophylactic dose rivaroxaban, a direct oral anticoagulant, is efficacious and safe as thromboprophylaxis in other demographics, and may be an optimal agent in SCD with CVC. Prior to conducting a full clinical trial to assess rivaroxaban as thromboprophylaxis in SCD with CVC, a pilot study is needed to gauge its feasibility.Methods and analysis THromboprophylaxis In Sickle Cell Disease pilot trial is an investigator-initiated, multicentre, double-blinded, randomised controlled trial (RCT) assessing if it is feasible and safe to conduct an adequately powered RCT comparing rivaroxaban to matching placebo as thromboprophylaxis in those with SCD and CVC. …”
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491
Design and Optimization of a High-Frequency Oscillation Suppression Strategy for the Grid-Connected Inverter of a Permanent Magnet Direct Drive Wind Turbine
Published 2025-03-01“…In response to such phenomena, we conducted research on the mechanism of negative effects and optimize the control strategies accordingly. First, an analysis model of the grid-connected inverter was established. …”
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492
Analysis of MHD hybrid nanofluid flow over cone and wedge with exponential and thermal heat source and activation energy
Published 2025-08-01“…In many industrial processes, magnetohydrodynamic (MHD) hybrid nanofluid flow plays a vital role in controlling mass and heat transfer in systems involving precipitation and chemical processing. …”
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493
Thermally activated fluorescence in 9,10-DPA single crystals enabling high-performance fast neutron detection
Published 2025-02-01“…The thermally activated fluorescence emission mechanism of DPA crystal was revealed using power-dependent and temperature-dependent photoluminescence spectroscopy. …”
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494
Using data mining techniques to improve inflation rate management
Published 2025-03-01“…In the economic field, the use of some data mining techniques brings a set of advantages such as optimization of basic activities. The present study deals with the identification of bottleneck commodities in the chain of basic commodities in the country. …”
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495
Optimization of microwave-assisted extraction for quercetin (prebiotic) and the effect of its symbiotic combination with Lactobacillus acidophilus (probiotic) in NAFLD induced rat...
Published 2025-06-01“…Response Surface Methodology (RSM) was employed to optimize MAE parameters. 25 female albino rats were divided into 5 groups of 5 rats each; 2 control (untreated and negative control) and 3 treatment groups (G1, G2, G3). …”
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496
Antioxidant, Physiochemical, and Sensory Properties of Functional Marshmallow Produced from Honey, Strawberry Concentrates, and Hibiscus Extract
Published 2025-01-01“…Among the formulations, F5 exhibited the highest phenolic and flavonoids contents (89.8 mg GAE/100 g and 1.62 mg RE/100 g, respectively) and reducing power activity (197.8% equivalent to 30 µg vitamin C). …”
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497
INTRODUCTION AND UTILIZATION OF A SOLAR POWERED HYDROPONIC AUTOMATIC NUTRITION SYSTEM (AIROPONIK) AS A SMART AGRICULTURAL SOLUTION FOR HOUSEHOLD-SCALE FARMING IN PANDEREJO VILLAGE...
Published 2025-06-01“…This community service activity focuses on implementing an automatic nutrient control system called Airoponik (Airlangga Robot Hydroponic) for hydroponic farmer groups in Panderejo hamlet, Gempol, East Java. …”
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498
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Advanced control strategies for multilevel inverter in grid-connected and off-grid photovoltaic systems: A multi-objective approach using LS-PWM for THD reduction
Published 2024-12-01“…The proposed approach leverages the nonlinear model of the PV system, which includes the photovoltaic field, boost converter, and multilevel inverter. The innovative control strategy is designed to achieve the following objectives: optimizing the performance of the PV system in terms of energy output and grid stability under varying weather conditions, controlling active and reactive power to ensure a unity power factor on the grid side, and adapting the power output to match the load demand in off-grid mode. …”
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