Results 21 to 30 of about 198,328 (259)

Intensification of heat dissipation from electrical elements to closed loop heat pipe [PDF]

open access: yesEPJ Web of Conferences, 2022
Article deals with the problem of heat transfer by condenser and evaporator for a closed loop heat pipe for cooling a hermetically sealed electrotechnical box.
Lenhard Richard   +4 more
doaj   +1 more source

Direct-Current Generator Based on Dynamic PN Junctions with the Designed Voltage Output

open access: yesiScience, 2019
Summary: The static PN junction is the foundation of integrated circuits. Herein, we pioneer a high current density generation by mechanically moving N-type semiconductor over P-type semiconductor, named as the dynamic PN junction.
Yanghua Lu   +5 more
doaj   +1 more source

HYDROSTATIC GENERATOR OF NON-PERIODIC PRESSURE IMPULSES FOR TESTING TECHNICAL PRODUCTS

open access: yesEurasian Physical Technical Journal, 2021
The article reviews the possibility of using the hydrostatic generators of oscillators with nonlinear power elements (elastic shells) as part of the structures of various test benches in the field of mechanical tests for vibration strength and vibration
A.I. Nizhegorodov   +3 more
doaj   +1 more source

Effect of Trailing Edge Flaps on Power Coefficient of a Horizontal Axis Wind Turbine Model [PDF]

open access: yesPort Said Engineering Research Journal, 2023
The field of wind energy has made significant progress, yet there is always room for improving the efficiency and the energy extracted from horizontal axis wind turbines HAWTs . There is interest in new renewable energy, including wind energy. This study
Mahmoud Khalil   +3 more
doaj   +1 more source

Autonomous Navigation of Robots Based on the Improved Informed-RRT∗ Algorithm and DWA

open access: yesJournal of Robotics, 2022
An improved method is proposed in this investigation to solve the problems of poor path quality and low navigation efficiency of the Informed-RRT∗ algorithm in robot autonomous navigation.
Jun Dai   +3 more
doaj   +1 more source

A Comparative Study on Developing the Hybrid-Electric Vehicle ‎Systems and its Future Expectation over the Conventional Engines Cars [PDF]

open access: yesJournal of Engineering Research - Egypt, 2022
The use of hybrid electric vehicles (HEVs) as an alternative to traditional petroleum-powered cars has risen due to climate change, air pollution, and fuel depletion.
Medhat Elkelawy   +4 more
doaj   +1 more source

Determining the power of mechanical losses in a rotary-piston engine

open access: yesEastern-European Journal of Enterprise Technologies, 2022
Проведено експериментальні дослідження величини потужності механічних втрат дослідного зразка роторно-поршневого двигуна з шарнірно-кулачковим механізмом перетворення руху, що спрямоване на вирішення проблеми підвищення ефективності енергоперетворення.
Oleksandr Mytrofanov   +3 more
openaire   +3 more sources

Flow Field and Combustion Characteristics of Natural Gas inside a Gas Turbine Combustor [PDF]

open access: yesPort Said Engineering Research Journal, 2013
The present work is numerical simulat ion results from the modeling of a non-premixed natural gas flame performedin a combustor model. CFD studies using FLUENT code were carried out for different air swirl numbers and inletthermal load with constant A/F.
Ibrahim Abdel-Rahman   +3 more
doaj   +1 more source

Integration of Wind Power for Sustainable Energy at Lagos State University of Science and Technology: A Feasibility Study

open access: yesJournal of Digital Food, Energy & Water Systems
This study investigates the feasibility of integrating wind power generation at Lagos State University of Science and Technology, specifically within the Mechanical Engineering Department, to address persistent electricity supply challenges in Nigeria ...
Akachukwu Oyim   +2 more
doaj   +1 more source

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