Results 221 to 230 of about 170,371 (265)

The Energy Input in Norwegian Forestry

Forest Science, 1983
Abstract The purpose of this article is to determine the energy input per m³ in Norwegian forestry in the years 1948/49 and 1978/79 and to find operational methods that require little energy. The energy for production of 1 unit of each of the means of production in forestry has been computed.
openaire   +1 more source

Bound of Earthquake Input Energy

Journal of Structural Engineering, 2004
A new general critical excitation method is developed for a damped linear elastic single-degree-of-freedom structure. In contrast to prior studies considering amplitude nonstationarity only, no special constraint of input motions is needed on nonstationarity.
openaire   +1 more source

Energy input to the lower thermosphere

Journal of Atmospheric and Terrestrial Physics, 1974
The asymmetry in solar heat input to the upper atmosphere at the solstice, and the asymmetry in atomic oxygen production, are largely compensated by a large scale wind system towards the winter polar region. At magnetically disturbed times, atmospheric composition at high winter latitudes changes in such a way as to indicate that polar region heating
openaire   +1 more source

Energy Input to the Auroral Ionosphere.

1980
Abstract : This effort was to aid studies of the high latitude ionosphere particularly with regard to Joule heating processes. For energy input to the atmosphere by Joule heating the dominant physical factor has been found to be the strength of the electric field - the motions of the ionospheric plasma through the nearly stationary neutral gas.
openaire   +1 more source

Energy Inputs in Soil Systems

2006
Boca Raton ...
openaire   +2 more sources

Energy Input from AGNs

1993
Active galactic nuclei pump substantial amounts of energy into their surroundings, in several forms. The direct action of radiation pressure, radiative heating of surrounding gas, and kinetic energy input through jets and winds may all play a role in modifying the environments of AGNs.
openaire   +1 more source

Applications of Input-Output Analysis to Energy Problems

Science, 1974
A brief outline of the U. S. input- output system and data base is given. An input-output table gives a detailed picture of the flow of goods and services that individual industries buy from and sell to each other in a particular year. The system was used in estimating the impact of 1973- 1974 petroleum shortages on output, employment, and prices.
openaire   +2 more sources

Estimating smart energy inputs packages using hybrid optimisation technique to mitigate environmental emissions of commercial fish farms

Applied Energy, 2022
Ehsan Elahi
exaly  

Real input-output energy-switching options

The Journal of Energy Markets, 2012
Paxson, Dean, Adkins, Roger
openaire   +3 more sources

The Input of Solar Energy

2007
Walter H. Adey, Karen Loveland
openaire   +1 more source