Results 1 to 10 of about 7,300,385 (295)
Energy Input Interaction in US Production
Review of Economic Analysis, 2022 This paper estimates production functions for annual US output from 1949 to 2013 adding energy Btu input to fixed capital assets and the labor force. Interactions between inputs are parsimoniously introduced in the error correction estimates.
Cassandra Copeland, Henry Thompson
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Energy input and food output: The energy imbalance across regional agrifood systems. [PDF]
PNAS NexusAbstract Biomass was the principal energy source in preindustrial societies; their agriculture provided more energy than it required. Thus, the energy return on energy investment (EROEI) needed to be >1. Recent studies have indicated that this may not be the case for modern industrialized agrifood systems (AFSs).
Rasul K +4 more
europepmc +5 more sources
An analysis of energy use, input costs and relation between energy inputs and yield of apple orchard [PDF]
Research in Agricultural Engineering, 2011 This study examines the energy balance between the input and the output per hectare for an apple orchard in the West Azarbaijan province in Iran (2008-2009). Data were collected by using random sampling method for 80 "face to face" questioners.
R. Fadavi, A. Keyhani, S.S. Mohtasebi
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Energies, 2021 As Canadian crude bitumen production from oil sands has increased in recent decades, the nation’s oil and gas industry has become a significant contributor to national greenhouse gas emissions.
Rui Xing +4 more
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Frontiers in Built Environment, 2023 The response of structures under pulse-like ground motions is characterized by the large amount of energy input in a few cycles. Consequently, structures with insufficient strength may suffer severe damage owing to excessive deformation.
Kenji Fujii
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Agronomy, 2021 The main objective of the cultivation of energy crops is the production of renewable energy, the substitution of fossil energy resources, and a substantial contribution to energy supply.
Robert Oliver Simon +1 more
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Energy Optimization in Different Production Technologies of Winter Triticale Grain
Energies, 2021 This article presents the results of a field experiment investigating the energy efficiency of grain produced by a semi-dwarf genotype of winter triticale at different levels of agricultural inputs.
Władysław Szempliński +3 more
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Frontiers in Built Environment, 2022 In general, isolators and dampers used in seismically isolated buildings are designed to be isotropic in any horizontal direction. However, in the case of buildings with plan irregularities, their nonlinear responses depend on the direction of seismic ...
Kenji Fujii
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Energy Analysis for Two Production Systems of Cucumber [PDF]
Iranica Journal of Energy and Environment, 2023 This research, conducted in Gotvand, southwest of Iran, compared the energy consumption of two cucumber production systems: field and greenhouse production systems.
H. Eskandari, S. N. Mosavian
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Energies, 2021 This study examined the current state of water demand and associated energy input for water supply against a projected increase in water demand in sub-Saharan Africa. Three plausible scenarios, namely, Current State Extends (CSE), Current State Improves (
Pauline Macharia +3 more
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