Results 31 to 40 of about 2,869,904 (312)

ISO efficiency curves of a two-phase hybrid stepping motor [PDF]

open access: yes, 2010
Stepping motors are used in numerous applications because of their low manufacturing cost and simple speed control. It is well known that their energetic efficiency is low but actual values are typically not available.
Cottyn, Johannes   +8 more
core   +1 more source

Portfolios of Climate Smart Agriculture Practices in Smallholder Rice-Wheat System of Eastern Indo-Gangetic Plains—Crop Productivity, Resource Use Efficiency and Environmental Foot Prints

open access: yesAgronomy, 2020
The conventional tillage based rice-wheat system (RWS) in Indo-genetic plains (IGP) of South Asia is facing diverse challenges like increase in production cost and erratic climatic events.
Deepak Bijarniya   +5 more
doaj   +1 more source

LED Illumination Spectrum Manipulation for Increasing the Yield of Sweet Basil (Ocimum basilicum L.)

open access: yesPlants, 2021
Manipulation of the LED illumination spectrum can enhance plant growth rate and development in grow tents. We report on the identification of the illumination spectrum required to significantly enhance the growth rate of sweet basil (Ocimum basilicum L.)
Md Momtazur Rahman   +2 more
doaj   +1 more source

Narrowing the US energy efficiency gap [PDF]

open access: yesProceedings of the National Academy of Sciences, 2010
The energy-efficiency gap has puzzled researchers and policy makers for decades (1). Changes in behavior and the use of efficient technologies could substantially reduce energy consumption, yielding strong financial returns. However, householders, business managers, and government officials fail to take advantage of the opportunity. Attari et al.
openaire   +2 more sources

Net Energy Index: A New Way To Measure Energy Efficient Buildings [PDF]

open access: yes, 2020
Energy efficiency indexes are useful for providing tangible measurements of energy efficiency in buildings. Buildings use approximately 70% of all electricity in the USA.
Suplee, Dylan
core   +1 more source

USE Efficiency: an innovative educational programme for energy efficiency in buildings

open access: yesInternational Journal of Sustainable Energy, 2017
Power engineers are expected to play a pivotal role in transforming buildings into smart and energy-efficient structures, which is necessary since buildings are responsible for a considerable amount of the total energy consumption. To fulfil this role, a
Theofilos A. Papadopoulos   +2 more
doaj   +1 more source

Efficiency of solar energy use in domestic hot water systems in Poland

open access: yesBudownictwo o Zoptymalizowanym Potencjale Energetycznym, 2021
This article establishes the efficiency of a single-circuit thermosyphon domestic solar hot water system for Polish cities such as Warsaw, Lublin, Bialystok, Czestochowa and Szczecin, using two indicators, namely the solar share and the efficiency of ...
Olena Savсhenko, Anna Lis
doaj   +1 more source

On the Kinetic Energy and Radiative Efficiency of Gamma-Ray Bursts [PDF]

open access: yes, 2004
Using measured X-ray luminosities to 17 Gamma-Ray Bursts (GRBs) during the afterglow phase and accounting for radiative losses, we calculate the kinetic energy of these bursts and investigate its relation to other GRB properties. We then use the observed
Lloyd-Ronning, Nicole M., Zhang, Bing
core   +1 more source

Evaluating forage land-use systems in semi-arid tropics of India: A multi-criteria assessment of productivity, profitability, energy, and environmental impact

open access: yesEnvironmental and Sustainability Indicators
The performance of eight forage land-use systems was assessed over five years in Karnataka, India, for their productivity, profitability, energy flow, water footprint, and environmental impacts.
Revappa Mohan Kumar   +8 more
doaj   +1 more source

Increasing farm size to improve energy use efficiency and sustainability in maize production

open access: yesFood and Energy Security, 2021
While the relationship between crop yields and the environmental impacts of crop agriculture has been well‐documented, research on the relationship between farm size and the sustainability of cereal production is limited.
Wushuai Zhang   +5 more
doaj   +1 more source

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