Results 21 to 30 of about 95,179 (164)

Apparent Power and Efficiency of Three-Phase Four-Wire System

open access: yesMìkrosistemi, Elektronìka ta Akustika, 2018
The differences between Buchholz's formula of apparent power and proposed formulation were demonstrated in the case of three-phase four-wire power system.
Myhailo Yuhymovych Artemenko   +2 more
doaj   +1 more source

Strategies of Energy-Efficient Active Filtering in the Two Wattmeter Reference Frame

open access: yesMìkrosistemi, Elektronìka ta Akustika, 2023
Such basic concepts of power theory as apparent power, active current and minimum power losses in the transmission line are defined for a three-phase three-wire system in the shortened two wattmeter reference frame.
Yurii Viktorovych Kutafin   +1 more
doaj   +1 more source

Monitoring of water supply connections as an element to reduce apparent losses of water?

open access: yesE3S Web of Conferences, 2017
Measuring instruments are designed to measure a given physical value, to process the obtained information and forward it to the observer. They are designed to perform specific tasks in specific working conditions and meeting the envisaged requirements ...
Gwoździej-Mazur Joanna
doaj   +1 more source

Analysis of the absorptance and emittance in particle curtains by means of a discrete MCRT method

open access: yesResults in Engineering, 2023
Apparent optical properties, absorptance and emittance, in particle curtains are analyzed by means of a discrete Monte Carlo Ray-Tracing model.
José Antonio Miras   +2 more
doaj   +1 more source

Loss Characterization of Giant Magnetostrictive Material Under Compressive Stress

open access: yesIEEE Access, 2022
The properties of giant magnetostrictive material (GMM) are very sensitive to external compressive stress. Knowledge of these key properties is of essential importance in practical applications such as high-power underwater transducers.
Yukai Chen   +4 more
doaj   +1 more source

The influence of heat loss from pipes in an unheated basement on the heating energy consumption of an entire typical apartment building [PDF]

open access: yesE3S Web of Conferences, 2020
The majority of old apartment buildings were designed with an unheated basement. Building service systems such as district heating heat exchangers and pipes for domestic hot water and for space heating are usually located in this unheated basement.
Hamburg Anti, Kalamees Targo
doaj   +1 more source

Evaluation of Decision-Making Processes and Impact Levels in Apparent Loss Management Using Analytic Hierarchy Process (AHP) and Fuzzy AHP

open access: yesDoğal Afetler ve Çevre Dergisi
The global climate crisis, which has become more evident in recent years, is creating even more stress on water resources. Sustainable and efficient use of existing water resources in urban water supply and distribution systems is becoming necessary ...
Furkan Acar   +2 more
doaj   +1 more source

Analysis of Ohmic loss due to non-ideal boundary in relativistic backward wave oscillator

open access: yesAIP Advances, 2021
Radio frequency Ohmic loss due to non-ideal conductor boundaries seriously limits the performance of electronic devices. In this paper, the Ohmic losses of two simple models are calculated by particle-in-cell (PIC) simulation, which is also verified by ...
Nongchao Tan   +8 more
doaj   +1 more source

Analysis of household telemetry consumption data for helping in the assessment of apparent and real losses in water distribution systems

open access: yesIngeniería del Agua, 2021
The availability of instantaneous data on water consumption in water utilities of water distribution systems has been increasing due to the increase in the number of customers with smart meters.
M.A. Silva   +3 more
doaj   +1 more source

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