Results 71 to 80 of about 7,827,205 (311)

Prediction of daily electricity carbon emission factors for high energy-consuming enterprises based on temporal feature optimization and hybrid intelligent algorithms

open access: yesAIP Advances
With the advancement of China’s “Dual Carbon” strategic goals, carbon emission monitoring and forecasting in the power industry have become increasingly important.
Kefei Guan   +7 more
doaj   +1 more source

Cascading Failures in Power Grids

open access: yesCoRR, 2022
This paper studies the consequences of a human-initiated targeted attack on the national electric power system. We consider two kinds of attacks: ($i$) an attack by an adversary that uses a tactical weapon and destroys a large part of the grid, by physically targeting a large geographic region; ($ii$) a targeted attack by an adversary that takes out a ...
openaire   +2 more sources

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

open access: yesAdvanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies   +2 more
wiley   +1 more source

Performance evaluation of distributed multi-agent IoT monitoring based on intelligent reflecting surface

open access: yesEURASIP Journal on Advances in Signal Processing
The advent of intelligent reflecting surface (IRS) technology has revolutionized the landscape of wireless communication systems, offering promising opportunities for enhancing the performance of Internet of Things (IoT) applications. This paper presents
Ying Sun, Jiajia Huang, Fusheng Wei
doaj   +1 more source

A Study on the Detection Method for Split Pin Defects in Power Transmission Lines Based on Two-Stage Detection and Mamba-YOLO-SPDC

open access: yesApplied Sciences
Detecting small split pins on transmission lines poses significant challenges, including low accuracy in complex backgrounds and slow inference speeds. To address these limitations, this study proposes a novel two-stage collaborative detection framework.
Wenjie Zhu   +5 more
doaj   +1 more source

Robust Spot Melting by 3D Spot Arrangements in Electron Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
This work proposes an approach to replace separately melted contours for spot melting in electron beam powder fusion. Adapting the spot arrangements close to the contour combined with stacking yields a comparable surface quality without the inherent challenges of separate contours, as demonstrated, by electron optical images and roughness measurements.
Tobias Kupfer   +4 more
wiley   +1 more source

A study of dual-cantilever beam FBG sensing detection of transformer winding vibration

open access: yesAIP Advances
The safe and stable operation of the transformer is the key to ensure the reliable operation of the power grid. Loose windings will produce a vibration acceleration signal with twice the power supply frequency signal, i.e., 100 Hz, as the main spectral ...
Xiang Lin   +6 more
doaj   +1 more source

Grid simulator for power quality assessment of micro‐grids [PDF]

open access: yesIET Power Electronics, 2013
In this study, a grid simulator based on a back‐to‐back inverter topology with resonant controllers is presented. The simulator is able to generate three‐phase voltages for a range of amplitudes and frequencies with different types of perturbations, such as voltage sags, steady‐state unbalanced voltages, low‐order harmonics and flicker. The aim of this
Carrasco, Joaquin Eloy Garcia   +2 more
openaire   +1 more source

Encyclopedia of 2D β′‐In2Se3 Growth Using Chemical Vapor Deposition: The Effects of Synthesis Parameters Onto Material Quality

open access: yesAdvanced Engineering Materials, EarlyView.
A distinct semi‐confined inner‐tube chemical vapor deposition geometry enables reproducible, large‐area growth of phase‐pure 2D β′‐In2Se3 from InI + Se precursors. Engineering local vapor transport and optimizing precursor delivery and temperature–time conditions yield uniform continuous films.
Dasun P. W. Guruge   +8 more
wiley   +1 more source

A multi energy storage system model based on electricity heat and hydrogen coordinated optimization for power grid flexibility

open access: yesCSEE Journal of Power and Energy Systems, 2019
Based on decreasing the flexibility of the power grid through the integration of large-scale renewable energy, a multi-energy storage system architectural model and its coordination operational strategy with the same flexibility as in the pumped storage ...
Teng Yun   +6 more
semanticscholar   +1 more source

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