Results 21 to 30 of about 7,048,114 (301)

Low-Power Appliance Monitoring Using Factorial Hidden Markov Models [PDF]

open access: yes, 2013
To optimize the energy utilization, intelligent energy management solutions require appliance-specific consumption statistics. One can obtain such information by deploying smart power outlets on every device of interest, however it incurs extra hardware ...
Gluhak, Alexander   +3 more
core   +1 more source

Optimal Voltage Control Method for a Step Voltage Regulator Considering the Under-Load Tap Changer in a Distribution System Interconnected with a Renewable Energy Source

open access: yesEnergies, 2023
The voltage in distribution systems is controlled by the under-load tap changer of the substation and the pole transformer of the primary feeders. Recently, as one of the main countermeasures, a step voltage regulator is being introduced to solve voltage
Hyun-ok Lee   +3 more
doaj   +1 more source

Polypyrrole|zinc supercapattery with the aqueous electrolyte [PDF]

open access: yesHemijska Industrija, 2017
Polypyrrole (PPY) electrode was obtained by electrochemical oxidative polymerization of pyrrole on graphite electrode from aqueous electrolyte containing 0.1 mol dm–3 pyrrole monomer and 1.0 mol dm–3 HCl.
Janačković Marija   +2 more
doaj   +1 more source

Universities Scale Like Cities [PDF]

open access: yes, 2012
Recent studies of urban scaling show that important socioeconomic city characteristics such as wealth and innovation capacity exhibit a nonlinear, particularly a power law scaling with population size.
van Raan, Anthony F. J.
core   +4 more sources

Electric machines with high specific power

open access: yesElektrotekhnika, 2022
Abstract Specific power, defined as the ratio of output power to total mass, is one of the generally accepted figures of merit for electrical machines. Given the growing interest in electric aircraft, developers are trying to demonstrate a high value of this indicator for their products.
N. S. Ivanov   +6 more
openaire   +1 more source

Cationic Covalent Organic Framework with Ultralow HOMO Energy Used as Scaffolds for 5.2 V Solid Polycarbonate Electrolytes

open access: yesAdvanced Science, 2022
Solid polymer electrolytes (SPEs) have become promising candidate to replace common liquid electrolyte due to highly improved security. However, the practical use of SPEs is still restricted by their decomposition and breakage at the electrode ...
Jie Liu   +8 more
doaj   +1 more source

Doped-Li1+xV3O8 as cathode materials for lithium-ion batteries: A mini review

open access: yesElectrochemistry Communications, 2020
Compared with other materials, monoclinic Li1+xV3O8 as the promising cathode includes many strong points, such as high theoretical capacity, abundant raw materials, safety characteristic and low environmental impact.
Limin Zhu   +4 more
doaj   +1 more source

Energy Efficiency in the ICT - Profiling Power Consumption in Desktop Computer Systems [PDF]

open access: yes, 2012
Energy awareness in the ICT has become an important issue. Focusing on software, recent work suggested the existence of a relationship between power consumption, software configuration and usage patterns in computer systems.
Ardito, L.   +4 more
core   +2 more sources

Numerical Analysis of the Structural Parameters on the Performance of Oil-Injected Rotary Vane Compressors

open access: yesMachines
The performance improvement potential with the optimisation of vane geometry and port timing angle in oil-injected Rotary Vane Compressors (RVCs) is not yet fully understood.
Fanghua Ye   +5 more
doaj   +1 more source

Specific loss power of magnetic nanoparticles: A machine learning approach

open access: yesAPL Materials, 2022
A machine learning approach has been applied to the prediction of magnetic hysteresis properties (coercive field, magnetic remanence, and hysteresis loop area) of magnetic nanoparticles for hyperthermia applications.
Marco Coïsson   +4 more
doaj   +1 more source

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