Results 1 to 10 of about 484,422 (164)

CVT discrete speed ratio optimizations based on energy efficiency for PHEV

open access: yesAlexandria Engineering Journal, 2022
The continuous speed ratio of the continuously variable transmission (CVT) changed rapidly, which made the quantity of oil intake and discharge of hydraulic system vary frequently, resulting in large energy loss and reduction in vehicle economy.
Jianjun Hu   +3 more
doaj   +2 more sources

Energy Efficiency of Oat:Pea Intercrops Affected by Sowing Ratio and Nitrogen Fertilization

open access: yesAgronomy, 2022
This study analyzed energy input (direct and indirect), energy output, net-energy output, energy use efficiency, energy intensity, and the energy productivity of oat:pea intercrops as affected by sowing ratio (oat:pea (%:%): 100:0, 75:25, 50:50, 25:75, 0:
Gerhard Moitzi   +4 more
doaj   +2 more sources

Sample-efficient gear-ratio optimization for biomechanical energy harvester [PDF]

open access: yesInternational Journal of Intelligent Robotics and Applications, 2021
13 pages, 11 ...
Taisuke Kobayashi   +2 more
openaire   +2 more sources

Effects of Pellet and Mash Diets of Mesquite Fruit (Prosopis juliflora) on Performance, Energy and Protein Efficiency Ratio and Intestinal Morphology of Broiler Chickens [PDF]

open access: yesPoultry Science Journal, 2020
The primary aim of this study was to assay the influence of pellet and mash diets supplemented with different levels of mesquite fruit on performance, energy and protein efficiency ratio, carcass characteristics, and intestinal morphology of broiler ...
E Mohammadi Kootiyani   +3 more
doaj   +1 more source

LIGHTING HYGIENE, MELANOPIC DAYLIGHT EFFICACY RATIOS AND ENERGY EFFICIENCY

open access: yesCIE x050:2023 Proceedings of the 30th Session of the CIE, Ljubljana, Slovenia, September 15 – 23, 2023, Volume 1, 2023
The second Manchester Workshop recommended minimum daytime eye-level exposures to light, and evening and night-time maximums, in terms melanopic equivalent daylight illuminance (melanopic EDI). In integrative lighting and healthy light hygiene regimes, the evening calls for lights with low melanopic daylight efficacy ratios (melanopic DERs) to realize ...
Price, Luke L.A., Schlangen, Luc J.M.
openaire   +3 more sources

Comparative analysis of air-to-water and ground source heat pumps performances

open access: yesInternational Journal of Sustainable Energy, 2021
A comparative analysis of the Coefficient of Performance (COP) and the Energy Efficiency Ratio (EER), based on the technical data of 430 different models of air-to-water heat pumps (AWHPs) as well ground-source heat pumps (GSHPs), at certain conditions ...
Georgios A. Mouzeviris   +1 more
doaj   +1 more source

Experimental Investigation of Heat Transfer and Flow Characteristics of Split Natural Cooling System for Data Center Based on Micro Heat Pipe Array

open access: yesEnergies, 2022
This paper presents a new type of split natural cooling system that maximizes the use of natural cold energy to significantly reduce the power consumption of the air conditioning system in data centers.
Heran Jing   +6 more
doaj   +1 more source

Energy Assessment of Sorghum Cultivation in Southern Ukraine

open access: yesAgriculture, 2021
Global climate changes and fossil fuel reserve depletion are drivers for the search for environmentally friendly renewable energy sources. In Europe, biomass represents the main alternative to fossil fuels. Among energy crops, sorghum is a promising crop
Oleg Bazaluk   +3 more
doaj   +1 more source

Water Extraction from Air: A Proposal for a New Indicator to Compare Air Water Generators Efficiency

open access: yesEnergies, 2021
Water extraction from air, based on reverse cycle systems, is becoming a technology more and more diffused and various models of air to water generators (AWG) are now available, all claiming the best efficiency. To date, there is not a standard indicator
Lucia Cattani   +2 more
doaj   +1 more source

Productivity, Energy and Economic Balance in the Production of Different Cultivars of Winter Oilseed Rape. A Case Study in North-Eastern Poland

open access: yesAgronomy, 2020
In this study, the agricultural inputs, energy requirements and costs associated with the production of semi-dwarf (PR45 D03 and Avenir) and long-stem (Visby) cultivars of winter oilseed rape were optimized in an experiment with 35-1 fractional factorial
Mateusz Sokólski   +3 more
doaj   +1 more source

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