Results 21 to 30 of about 8,024,138 (292)

Study and determination of energy consumption to produce conventional rice of the Guilan province

open access: yesResearch in Agricultural Engineering, 2012
The aim of this study was to determine the energy efficiency indices in the agro-ecosystems of the Guilan province in 2010. One hundred and twenty-seven farmers were interviewed using a particularly designed questionnaire.
A. Alipour   +4 more
doaj   +1 more source

Do Real Output and Renewable Energy Consumption Affect CO2 Emissions? Evidence for Selected BRICS Countries

open access: yesEnergies, 2020
Climate change is one of the most important global problems faced by the international community. It is generally believed that increasing the consumption of renewable energy is an effective measure to promote CO2 emissions reduction.
Jiang-Long Liu   +3 more
doaj   +1 more source

Modelling energy use pattern for maize (Zea mays L.) production in Nigeria

open access: yesCleaner Engineering and Technology, 2021
The current mechanized system of crop production requires a considerable amount of energy. Finding the important factors that lead to improved crop yields is a necessary step towards reducing huge energy inputs and, subsequently, reducing environmental ...
Babajide S. Kosemani, A. Isaac Bamgboye
doaj   +1 more source

Progress Toward High Power Output in Thermionic Energy Converters

open access: yesAdvanced Science, 2021
Thermionic energy converters are solid‐state heat engines that have the potential to produce electricity with efficiencies of over 30% and area‐specific power densities of 100 Wcm−2.
Matthew F. Campbell   +4 more
doaj   +1 more source

An Array Magnetic Coupling Piezoelectric and Electromagnetic Energy Harvester for Rotary Excitation

open access: yesMicromachines, 2023
The energy of rotating machinery exists widely in the environment. It is of great significance to collect and utilize the energy of rotating machinery for sustainable development. In this paper, a novel piezoelectric and electromagnetic energy harvester,
Qiuxuan Chen, Chong Li, Mingming Lv
doaj   +1 more source

Predicting Output Power for Nearshore Wave Energy Harvesting

open access: yesApplied Sciences, 2018
Energy harvested from a Wave Energy Converter (WEC) varies greatly with the location of its installation. Determining an optimal location that can result in maximum output power is therefore critical.
Henock Mamo Deberneh, Intaek Kim
doaj   +1 more source

Economic operation strategy of integrated hydrogen energy system considering the uncertainty of PV power output

open access: yesEnergy Reports, 2023
To address the negative influence caused by power randomness of distributed PV output on energy system’s economic operation, in this work, an economic operation strategy considering the uncertainty features of PV output has been designed and applied on ...
Zhenjun Lu   +3 more
doaj   +1 more source

Investigation on energy output structure of explosives near-ground explosion

open access: yesDefence Technology, 2020
In order to give the energy output structure of typical explosives near-ground explosion in real ground conditions, the free-field shockwave, ground reflection shockwave and Mach wave overpressure time history of composition B explosive, RDX explosive ...
Wen-long Xu   +4 more
doaj   +1 more source

Research on analysis method of measurement uncertainty in the power performance assessment of tidal energy converters

open access: yesEnergy Reports, 2023
The analysis on the measurement uncertainty of output power in the field test of tidal energy converters is an important process to evaluate the power characteristics performance of the tested tidal energy converter.
Hainan Xia   +4 more
doaj   +1 more source

Building Energy Models at Different Time Scales Based on Multi-Output Machine Learning

open access: yesBuildings, 2022
Machine learning techniques are widely applied in the field of building energy analysis to provide accurate energy models. The majority of previous studies, however, apply single-output machine learning algorithms to predict building energy use.
Guangchen Li   +3 more
doaj   +1 more source

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