Quasi-Moessbauer effect in two dimensions

Expressions for the absorption spectrum of a nucleus in a three- and a two-dimensional crystal respectively are obtained analytically at zero and at finite temperature respectively. It is found that for finite temperature in two dimensions the Moessbauer effect vanishes but is replaced by what we call a Quasi-Moessbauer effect. Possibilities to identify two-dimensional elastic behavior are discussed.Comment: 18 pages, 5 figures, notation simplifie

Performance of a gas-synthesis demonstration plant for producing liquid fuels from coal /

Includes bibliographic references.Mode of access: Internet

Estimated plant and operating costs for producing gasoline by coal hydrogenation /

"August 1949."Includes bibliographical references.Mode of access: Internet

Improvements in hydrogenation of coal /

"December 1948."Mode of access: Internet