Results 11 to 20 of about 12,068,455 (290)
Energy production in stars [PDF]
Physics Today, 1939 FROM TIME IMMEMORIAL people must have been curious to know what keeps the sun shining. The first scientific attempt at an explanation was by Helmholtz about one hundred years ago, and was based on the force most familiar to physicists at the time, gravitation. When a gram of matter falls to the sun's surface it gets a potential energy Epot = −GM/R = −1.
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Material and Energy Productivity
Environmental Science & Technology, 2011 Resource productivity, measured as GDP output per resource input, is a widespread sustainability indicator combining economic and environmental information. Resource productivity is ubiquitous, from the IPAT identity to the analysis of dematerialization trends and policy goals.
Steinberger, JK, Krausmann, F
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Techno-economic assessment of micro-algae as feedstock for renewable bio-energy production [PDF]
, 2013 This paper determines the energy consumption ratio and overall bio-energy production costs of microalgae cultivation, harvesting and conversion to secondary energy carriers, thus helping to clarify future perspectives of micro-algae production for energy
Jonker, J.G.G. +3 more
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Energy production and use in Dutch agriculture [PDF]
, 1974 Energy relationschips in the agriculture of one of the most densely populated areas of the world, the Nether lands, are described. The Netherlands appear selfsupporting in food energy.
Dekkers, W.A. +4 more
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Optimizing waste management system design for energy recovery [PDF]
, 2012 Municipal Solid Waste (MSW) disposal has been a controversial issue in many countries over the past years. Issues such as the increasing public opposition in creating new landfills, stricter environmental regulations, as well as a change in the European ...
Tatsiopoulos, Ilias +2 more
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Addendum to A Blueprint for Ocean Energy Development 2010-2015 [PDF]
OWET convened the second annual OWET Developersʼ Summit on August 2, 2011 in Portland, Oregon. The Summit brought together participants, both new and those who had attended the first OWET Developersʼ Summit 2010, to review the Blueprint for Ocean Energy ...
Oregon Wave Energy Trust
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Applied Sciences, 2021 Energy consumption, because of population development, is progressively increasing. For this reason, new sources of energy are being developed, such as that produced from the combustion of biomass.
Jorge Suárez-Macías +3 more
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Productive efficiency of energy-aware walnut production
ANADOLU JOURNAL OF AGRICULTURAL SCIENCES, 2023 Innovative cultivation and processing facilities are needed in order for the increased production in Türkiye to be efficient, low energy consumption, and high quality. Therefore, an in-depth analysis of the US California-based walnut producer has been made, which can also be an industrial role model to Turkish producers. The orchard of Chandler variety
Onur TAŞKIN, Zhongli PAN
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Process of Formaldehyde and Volatile Organic Compounds’ Removal fromWaste Gases
Applied Sciences, 2020 Waste gases that cannot be released into the environment are generated in chemical industrial processes. There are various physico-chemical processes for the treatment of these gases, but in most cases, they present a major cost to the company.
Jozsef Mursics +2 more
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Energy Flow in Growth and Production [PDF]
Trends in Ecology & Evolution, 2019 Growth involves two flows of energy: the chemical energy in the monomers used to construct the macromolecules that comprise tissue (proteins, nucleic acids, lipid membranes), and the metabolic energy used to build those macromolecules. The metabolic costs of synthesising the macromolecules necessary to build tissue are well defined, and we have a ...
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