Results 1 to 10 of about 87,179 (210)

A Method for Validating CubeSat Satellite EPS Through Power Budget Analysis Aligned With Mission Requirements

open access: yesIEEE Access, 2023
The use of commercial off-the-shelf (COTS) components in CubeSat design offers flexibility, scalability, reduced power budget, and reduced development time. For these reasons, many space missions have adopted COTS platforms, owing to their advantages and
Ignacio F. Acero   +7 more
doaj   +3 more sources

Robust Optimization for Dynamic Economic Dispatch Under Wind Power Uncertainty With Different Levels of Uncertainty Budget

open access: yesIEEE Access, 2016
Since dynamic economic dispatch with wind power uncertainty poses great challenges for power system operation due to its non-linear and uncertain characteristics, this paper proposes a robust optimization model with different levels of uncertainty budget.
Huifeng Zhang, Dong Yue, Xiangpeng Xie
doaj   +3 more sources

Parametric Studies of Effect of Cavitation Jet Modes on Wear Rate of Surface of Structural Materials

open access: yesMetals, 2022
In this study the kinetic curves of cavitation wear of cast steels 20 GL and 30 L used for production of critical elements of hydraulic machines were obtained.
Alexey Mednikov   +4 more
doaj   +1 more source

Studies of the Solid Particle Erosion Resistance of 30 L Steel with Different Types of Surface Modification

open access: yesMetals, 2023
Earlier studies have shown that 30 L steel, used for the manufacture of hydraulic machinery equipment elements, has greater resistance to cavitation wear than 20 GL steel.
Alexander Tkhabisimov   +2 more
doaj   +1 more source

Development of the Power Simulation Tool for Energy Balance Analysis of Nanosatellites [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2017
The energy balance in a satellite needs to be designed properly for the satellite to safely operate and carry out successive missions on an orbit. In this study, an analysis program was developed using the MATLABⓇ graphic user interface (GUI) for ...
Eun-Jung Kim, Eun-Sup Sim, Hae-Dong Kim
doaj   +1 more source

CubeSat project: experience gained and design methodology adopted for a low-cost Electrical Power System

open access: yesAutomatika, 2022
This paper focuses on experimented space projects run by universities, offering an effective design process to improve learning methods in space engineering.
Kamel Djamel Eddine Kerrouche   +5 more
doaj   +1 more source

Performance Analysis of Wavelength Division Multiplexing-Based Passive Optical Network Protection Schemes by Means of the Network Availability Evaluator

open access: yesApplied Sciences, 2022
This paper is focused on the performance analysis of protection mechanisms utilized in common wavelength division multiplexing-based passive optical networks.
Rastislav Róka
doaj   +1 more source

Integrated Flight Control System Characterization Approach for Civil High-Speed Vehicles in Conceptual Design

open access: yesAerospace, 2023
Recent studies have revealed that control surface deflection can cause a reduction in the aerodynamic efficiency of a hypersonic aircraft of up to 30%.
Davide Ferretto   +3 more
doaj   +1 more source

Effect of the Grain Shape on Abrasive Tool Performance [PDF]

open access: yesMATEC Web of Conferences, 2019
The results of studying the effect of the grain shape on abrasive disc performance are presented. The grain shape was conveniently divided into two classes: isometric and non-isometric.
Shepelev Ivan   +2 more
doaj   +1 more source

Symbol error probability optimization in cognitive amplify and forward cooperative relaying networks

open access: yesEngineering Science and Technology, an International Journal, 2022
This paper considers a resource scheduling problem of a cooperative cognitive radio network based on orthogonal frequency division multiplexing technology, in which primary and secondary users enjoy different priorities.
Dong Qin
doaj   +1 more source

Home - About - Disclaimer - Privacy