Results 31 to 40 of about 7,537,728 (295)

Studying Corruption and Anticorruption in a Late Medieval Commune: The case of Thirteenth- and Fourteenth-century Bologna [PDF]

open access: yes, 2023
This paper explores the historical meaning of corruption and its forms of contrast in late medieval Bologna. It focuses on understanding the different and changing notions this form of classifiable crime, performed by public officers, assumed in the ...
Edward Loss
core   +1 more source

Comprehensive Predictive Control Model for a Three-Phase Four-Legged Inverter

open access: yesEnergies, 2023
This paper presents a comprehensive model predictive control (CMPC) method to control a three-phase four-legged inverter (TP4LI) for PV systems. The proposed TP4LI model aims to predictively model and control switching frequency and higher voltage ...
Muhammad M. Fayyaz   +3 more
doaj   +1 more source

Optimization of Multi-Objective Function for User-defined Characteristics Recloser and Size of Fault Current Limiters in Radial Networks with Distributed Generation [PDF]

open access: yesهوش محاسباتی در مهندسی برق, 2023
In addition to the many advantages of Distributed Generation (DG) for the distribution networks, they change the direction and increase the level of fault current.
Saman Ghobadpour   +2 more
doaj   +1 more source

Use of hydraulic model in real water loss reduction and water distribution network operational cost lowering

open access: yesEconomics and Environment, 2022
Most of the small water companies supplying a small number of consumers with water are struggling with the extremely tight budget, often making any large-scale modernisation impossible.
Artur Zajkowski   +4 more
doaj   +1 more source

Optimal allocation of multiple distributed generation units in power distribution networks for voltage profile improvement and power losses minimization

open access: yesCogent Engineering, 2022
Distributed Generation (DG) integration into an existing electrical distribution system plays a great role in combating power system profile problems associated with load growth, overloading, lowquality of supply and non-reliability.
Yalew Gebru Werkie   +1 more
doaj   +1 more source

Global state of harm reduction 2020. [PDF]

open access: yes, 2020
he Global State of Harm Reduction is the only report that provides an independent analysis of harm reduction in the world. Now in its the seventh edition, the Global State of Harm Reduction 2020 is the most comprehensive global mapping of harm reduction ...

core  

Additively Manufactured Transverse Flux Machine Components with Integrated Slits for Loss Reduction

open access: yesMetals, 2022
Laser powder bed fusion (L-PBF) was used to produce stator half-shells of a transverse flux machine from pure iron (99.9% Fe). In order to reduce iron losses in the bulk components, radially extending slits with a nominal width of 150 and 300 µm ...
Thomas Kresse   +7 more
doaj   +1 more source

Reliability and Network Performance Enhancement by Reconfiguring Underground Distribution Systems

open access: yesEnergies, 2020
Contemporary distributions are now going to underground their overhead distribution lines due to techno-social reasons. Reliability and loss reduction are the two prime objectives for distribution system operation.
Praveen Agrawal   +6 more
doaj   +1 more source

Multi-Objective Decision Approach for Optimal Real-Time Switching Sequence of Network Reconfiguration Realizing Maximum Load Capacity

open access: yesEnergies, 2023
One of the most famous methods for minimizing power loss is distribution network reconfiguration (DNR). Accordingly, many researchers have focused their work on finding a network’s optimal configuration in planning mode.
Ola Badran, Jafar Jallad
doaj   +1 more source

Influence of blade geometry on secondary flow development in a transonic centrifugal compressor

open access: yesJournal of the Global Power and Propulsion Society, 2018
Due to the increasing demand for higher efficiencies of centrifugal compressors, numerical optimization methods are becoming more and more relevant in the design process.
Moritz Mosdzien   +4 more
doaj   +1 more source

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