Results 1 to 10 of about 185,638 (120)

Numerical optimization of the piezoelectric generators [PDF]

open access: yesJournal of Advanced Dielectrics, 2020
This paper presents the application of the Pareto-based multicriteria optimization technique to problems of increasing the efficiency of piezoelectric generators (PEGs).
V. A. Chebanenko   +4 more
doaj   +1 more source

Study of Surface Roughness and Burr Formation After Milling of Carbon Fiber/Titanium Stacks [PDF]

open access: yesMaterials Research, 2020
This work aims to study the influence of cutting parameters (cutting speed, feed rate, cutting depth and tool cutting edge angle) regarding surface roughness and burr formation during the milling of a mixed structure comprised of titanium and carbon ...
Tarik Hazem Ashmawi   +3 more
doaj   +1 more source

The development of solid oxide co-electrolysis of H2O and CO2 on large-size cells and stacks

open access: yesiEnergy, 2023
In the context of carbon neutrality, conversion of CO2 into CO is an effective way for negative carbon emission. Electrochemical reduction is a novel developed pathway, among which, solid oxide co-electrolysis technology is promising for its high ...
Jingjing Liang   +5 more
doaj   +1 more source

Effects of a Hydraulic Series Connection and Flow Direction on Electricity Generation in a Stack Connected with Different Volume MFCs

open access: yesApplied Sciences, 2021
Three microbial fuel cells (MFCs) with different volumes (S-, M-, and L-MFCs) were operated at individual flow (phase I) and serially connected flow modes (phase II for forward flow and phase III for reverse flow) at the same flow rate.
Jaecheul Yu
doaj   +1 more source

Analysis of methods for selection of optimal parameters of stack

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2021
The most significant technical solutions should be optimized using a technical and economic analysis, which reduces the cost of their implementation. Due to the fact that the diameter and height of the chimney depends on the gas velocity in the chimney ...
K. M. Mirsalikhov   +2 more
doaj   +1 more source

Reverse Electrodialysis: Co- and Counterflow Optimization of Multistage Configurations for Maximum Energy Efficiency

open access: yesMembranes, 2020
Reverse electrodialysis (RED) is one of the techniques able to harvest energy from the salinity gradient between different salt solutions. There is a tradeoff between efficiency and generated power in a RED stack. This paper focuses on efficiency.
Joost Veerman
doaj   +1 more source

The use of specialized electronic educational resources for preparing students for computer science Olympiads

open access: yesRUDN Journal of Informatization in Education, 2021
Problem and goal. The article deals with the problem of improving the preparation of students for computer science Olympiads with the help of a specialized electronic educational resource (EER). Methodology. The research uses the analysis of existing EER
Olga Yu. Zaslavskaya, Oleg D. Lyubutov
doaj   +1 more source

Design, Development and Testing of a Monitoring System for the Study of Proton Exchange Fuel Cells and Stacks

open access: yesSensors, 2023
This article is about the design, development and validation of a new monitoring architecture for individual cells and stacks to facilitate the study of proton exchange fuel cells.
Milena L. Zambrano H   +5 more
doaj   +1 more source

LaNi0.6Co0.4−xFexO3−δ as Air-Side Contact Material for La0.3Ca0.7Fe0.7Cr0.3O3−δ Reversible Solid Oxide Fuel Cell Electrodes

open access: yesCrystals, 2022
The goal of the current work was to identify an air-side-optimized contact material for La0.3Ca0.7Fe0.7Cr0.3O3−δ (LCFCr) electrodes and a Crofer22APU interconnect for use in reversible solid oxide fuel cells (RSOFCs).
Kalpana Singh   +4 more
doaj   +1 more source

Experimental Investigation of a Solid Oxide Fuel Cell Stack using Direct Reforming Natural Gas [PDF]

open access: yesHydrogen, Fuel Cell & Energy Storage, 2017
In this study, a solid oxide fuel cell (SOFC) stack has been successfully fabricated and tested by using direct natural gas. The main objective of this research was to achieve optimal long-term performance of the SOFC stack without carbon deposition by ...
Morteza Torabi   +6 more
doaj   +1 more source

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