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Jose A. Almagro-Pastor, Rafael García-Quesada, Jerónimo Vida-Manzano, Francisco J. Martínez-Irureta and Ángel F. Ramos-Ridao
This paper analyses the acoustic behaviour of the Palace of Charles V from a room acoustics perspective but also ponders the uniqueness of the space and its ability to engage and enhance the audience experience. The Palace of Charles V is a relevant part...
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K. David Coates, Erin C. Hall and Charles D. Canham
In Canada and elsewhere, logging practices in natural-origin forests have shifted toward retention systems where variable levels of mature trees are retained post-logging to promote a diversity of values. We examine multiple sites that experienced a wide...
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Juan-Luis García,Jorge A. Strelin,Rodrigo M. Vega,Brenda L. Hall,Charles R. Stern
Pág. 190 - 212
The late-glacial sedimentologic and geomorphic record of the former Patagonian ice sheet remains mostly unstudied despite the fact that it affords invaluable evidence for glaciologic processes during the last glacial-interglacial transition (i.e., 18-11....
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Michael Aucott and Charles Hall
We examined data on fuel consumption and costs for the years 1950 through 2013, along with economic and population data, to determine the percent of U.S. gross domestic product (GDP) spent each year on fuels, including fossil fuels and nuclear ore, and t...
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Abbe Hamilton, Stephen B. Balogh, Adrienna Maxwell and Charles A. S. Hall
We examine technological progress in the US and Canada to answer the question: has the efficiency (e.g., the edible energy efficiency, or EEE) for producing agricultural products in the US and Canada increased in recent decades? Specifically, we determin...
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Alexandre Poisson and Charles A. S. Hall
Modern economies are dependent on fossil energy, yet as conventional resources are depleted, an increasing fraction of that energy is coming from unconventional resources such as tar sands. These resources usually require more energy for extraction and u...
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Xiaoya Cai, Terri Starman, Genhua Niu, Charles Hall, and Leonardo Lombardini
Pág. 1050 - 1055
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Charles A.S. Hall
This paper is a synthesis of a series of twenty papers on the topic of EROI, or energy return on investment. EROI is simply the energy gained from an energy-obtaining effort divided by the energy used to get that energy. For example, one barrel of oil in...
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Charles A.S. Hall, Bruce E. Dale and David Pimentel
The authors of this paper have been involved in contentious discussion of the EROI of biomass-based ethanol. This contention has undermined, in the minds of some, the utility of EROI for assessing fuels. This paper seeks to understand the reasons for the...
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Yan Hu, Lianyong Feng, Charles C.S. Hall and Dong Tian
In China there has been considerable discussion of how one should express the efficiency of energy conversion and production. Energy return on investment (EROI) can be useful for this because its methodology is based on outputs and inputs. Unfortunately,...
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