Investigations of glass structure using fluorescence line narrowing and moleuclar dynamics simulations (open access)

Investigations of glass structure using fluorescence line narrowing and moleuclar dynamics simulations

The local structure at individual ion sites in simple and multicomponent glasses is simulated using methods of molecular dynamics. Computer simulations of fluoroberyllate glasses predict a range of ion separations and coordination numbers that increases with increasing complexity of the glass composition. This occurs at both glass forming and glass modifying cation sites. Laser-induced fluorescence line-narrowing techniques provide a unique probe of the local environments of selected subsets of ions and are used to measure site to site variations in the electronic energy levels and transition probabilities of rare earth ions. These and additional results from EXAFS, neutron and x-ray diffraction, and NMR experiments are compared with simulated glass structures.
Date: July 2, 1982
Creator: Weber, M. J. & Brawer, S. A.
Object Type: Article
System: The UNT Digital Library
Texas Register, Volume 7, Number 49, Pages 2497-2530, July 2, 1982 (open access)

Texas Register, Volume 7, Number 49, Pages 2497-2530, July 2, 1982

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: July 2, 1982
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Attorney General Opinion: MW-481 (open access)

Texas Attorney General Opinion: MW-481

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Mark White, regarding a legal question submitted for clarification; Disposition of interest on Law Enforcement Officer Standards and Education Funds and Criminal Justice Planning Funds
Date: July 2, 1982
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History