Results 11 to 20 of about 14,307,947 (345)

A holistic approach to food loss reduction in Africa: food loss analysis, integrated capacity development and policy implications

open access: yesFood Security, 2022
Food insecurity in the African context is a critical issue; yet total food losses are estimated at 15.9% and 17.2% in quantity and in caloric value, respectively (FAO, 2019).
Mireille Totobesola   +9 more
semanticscholar   +1 more source

Reliability Loss with Sampling Rate Reduction [PDF]

open access: yes2015 Computing in Cardiology Conference (CinC), 2015
High sampling frequency is not usually available in hospital monitoring systems, what can limit the usefulness of the data, namely for repolarization measures. In this work the reliability of beat-to-beat measures using low sampling frequency is quantified with respect to the original high sampling rate.
Paulo Sousa   +3 more
openaire   +3 more sources

Distribution network energy loss reduction under EV charging schedule

open access: yesInternational Journal of Energy Research, 2022
This article deals with the problem of energy losses in distribution networks (DNs) under electric vehicle (EV) penetration. The problem of charging overlaps causing severe power losses and voltage drops is faced under appropriate EV charging.
A. Bouhouras   +3 more
semanticscholar   +1 more source

Variance Reduction in Simulations of Loss Models [PDF]

open access: yesOperations Research, 1999
We propose a new estimator of steady-state blocking probabilities for simulations of stochastic loss models that can be much more efficient than the natural estimator (ratio of losses to arrivals). The proposed estimator is a convex combination of the natural estimator and an indirect estimator based on the average number of customers in service ...
Rayadurgam Srikant, Ward Whitt
openaire   +2 more sources

AC Magnetic Loss Reduction of SLM Processed Fe-Si for Additive Manufacturing of Electrical Machines

open access: yesEnergies, 2021
Additively manufactured soft magnetic Fe-3.7%w.t.Si toroidal samples with solid and novel partitioned cross-sectional geometries are characterized through magnetic measurements. This study focuses on the effect of air gaps and annealing temperature on AC
H. Tiismus   +7 more
semanticscholar   +1 more source

Study on the Technologies of Loss Reduction in Wheat Mechanization Harvesting: A Review

open access: yesAgriculture, 2022
Wheat harvesting is one of the most important links in the whole wheat production process. In China, the wheat planting areas are wide, and the patterns are diversified.
Xu Chen   +4 more
semanticscholar   +1 more source

Distribution System Reconfiguration with Soft Open Point for Power Loss Reduction in Distribution Systems Based on Hybrid Water Cycle Algorithm

open access: yesEnergies, 2022
In this paper, the role of soft open point (SOP) is investigated with and without system re-configuration (SR) in reducing overall system power losses and improving voltage profile, as well as the effect of increasing the number of SOPs connected to ...
Shamam Alwash   +2 more
doaj   +1 more source

A Review on Magnet Loss Analysis, Validation, Design Considerations, and Reduction Strategies in Permanent Magnet Synchronous Motors

open access: yesEnergies, 2022
Eddy current losses in magnets are a major consideration in the rotor design of permanent magnet synchronous motors (PMSMs). Stator design choices and the use of modern inverters with high switching frequency introduce harmonics that can contribute to ...
Samith Sirimanna   +2 more
doaj   +1 more source

OPTIMAL REACTIVE POWER FLOW SOLUTION OF 400-132 KV ELECTRIC NETWORKS OF IRAQ IN THE SOFTWARE PACKAGE RastrWin3

open access: yesВестник Северо-Кавказского федерального университета, 2022
In order to reduce energy losses in Iraq's networks with a voltage of 400-132 kV, simulation of modes and optimization of voltage and reactive power in the RastrWin3 software package were performed according to the data of the SCADA.
A. Hussein, M. Zhukov, Y. Kononov
doaj   +1 more source

Modified Discontinuous Pulsewidth Modulation Approach With Independent Phase Loss Adjustment for Voltage Source Converters

open access: yesIEEE Access, 2023
This paper presents an efficient independent phase switching loss reduction technique for 2-level 3-phase voltage source inverters. A modified carrier-based pulse-width modulation algorithm, named per-phase discontinuous pulse-width modulation, is used ...
Minh-Hoang Nguyen   +2 more
doaj   +1 more source

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