Results 81 to 90 of about 1,078,856 (288)

Optimal Distributed Power Generation Under Network-Load Constraints [PDF]

open access: yes, 2010
In electrical power networks nowadays more and more customers are becoming power-producers, mainly because of the development of novel components for decentralized power generation (solar panels, small wind turbines and heat pumps).
Bloemhof, G, Bosman, J, van den Akker, M
core  

Optimal Power Allocation for Parameter Tracking in a Distributed Amplify-and-Forward Sensor Network

open access: yes, 2014
We consider the problem of optimal power allocation in a sensor network where the sensors observe a dynamic parameter in noise and coherently amplify and forward their observations to a fusion center (FC).
Chen, Jie   +2 more
core   +1 more source

Method of calculating the maximum transmission capability with unified power flow controller

open access: yesThe Journal of Engineering, 2017
This study proposed an algorithm for calculating the maximum transmission capacity considering unified power flow controller (UPFC). At the beginning, the equivalent virtual generator, located on ends of UPFC's branch, is obtained based on the source model of UPFC. Then, for the purpose of obtaining the range of transmission power, the maximum (minimum)
Liu Jiankun   +4 more
openaire   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner   +9 more
wiley   +1 more source

Transmission needs across a fully renewable European power system

open access: yes, 2013
The residual load and excess power generation of 27 European countries with a 100% penetration of variable renewable energy sources are explored in order to quantify the benefit of power transmission between countries.
Andresen, Gorm B.   +4 more
core   +1 more source

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

Performance analysis and optimization for coverage classes updating mechanism of narrow-band internet of things

open access: yesTongxin xuebao, 2018
A Markov chain model with coverage classes as state variables was established to describe the dynamics of the coverage classes updating mechanism of narrow-band internet of things (NB-IoT).An optimization model to minimize average probability of access ...
Xin JIAN   +6 more
doaj   +2 more sources

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

open access: yesAdvanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng   +7 more
wiley   +1 more source

Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires

open access: yesAdvanced Functional Materials, EarlyView.
In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton   +11 more
wiley   +1 more source

Active-Margin Transmission Power Control for Wireless Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2014
An effective transmission power control (TPC) method is proposed and demonstrated, in which an appropriate active margin is directly applied rather than a step-by-step margin as in the conventional TPC method. Active-margin transmission power control (AM-
Byung-Hee Son   +3 more
doaj   +1 more source

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