Gray, Allen

Alienology : the complete book of extraterrestrials by Allen Gray( Book )
1 edition published in 2010 in English and held by 297 libraries worldwide
The year is 1969, and Professor Alan Grey is ready to lead you on a magical mystery tour of a world where space creatures mingle with earthlings, unbeknownst to all but a chosen few.

Learning, operant( visu )
1 edition published in 1973 in English and held by 2 libraries worldwide
Defines and demonstrates operant conditioning, showing how actions that are rewarded or reinforced tend to be repeated, whereas actions not rewarded tend not to be repeated.

Learning, classical( visu )
1 edition published in 1973 in English and held by 2 libraries worldwide
Defines and demonstrates classical conditioning, showing how learning occurs with the association of stimulus and response.

Milestones Toward 50% Efficient Solar Cell Modules( Book )
1 edition published in 2007 in English and held by 1 library worldwide
The Very High Efficiency Solar Cell (VHESC) program is developing integrated optical system - PV modules for portable applications that operate at greater than 50 percent efficiency. We are integrating the optical design with the solar cell design, and have entered previously unoccupied design space. Our approach is driven by proven quantitative models for the solar cell design, the optical design and the integration of these designs. Optical systems efficiency with an optical efficiency of 93% and solar cell device results summing to 42.9% are described. Keywords: High performance, module architecture, solar cell efficiency.

Initial Test Bed for Very High Efficiency Solar Cells( Book )
1 edition published in 2008 in English and held by 1 library worldwide
Very High Efficiency Solar Cell (VHESC) program is developing integrated optical system-photovoltaic modules for portable applications that operate at greater than 50 percent efficiency. We are integrating the optical design with the solar cell design, and we have entered previously unoccupied design space. A test bed for rapid development and verification of performance of subsystems is also being developed. The results and analysis of the first complete integrated optics and solar cells on this test bed are reported. The demonstration has achieved efficiency greater than 36%. Analysis shows a direct path to efficiencies greater than 40%. These initial results have not been verified by NREL or any other 3rd party. We have previously reported the sum of the solar cell efficiencies to be over 42%, and optical subsystem efficiency greater than 93%. Our approach is driven by proven quantitative models for the solar cell design, the optical design and the integration of the two.

The world of Farley Mowat by Farley Mowat( Sound Recording )
in English and held by 1 library worldwide

Letter, ca. 1870, Attala, Ala. to] Allen Gray by Ku Klux Klan (1915- )( Book )
1 edition published in 1870 in English and held by 1 library worldwide