Inventory of Wells in the Lower Puna District (open access)

Inventory of Wells in the Lower Puna District

None
Date: June 7, 1989
Creator: Perry, Jennifer
Object Type: Report
System: The UNT Digital Library
New theoretical approaches for studying electron collisions with small molecules (open access)

New theoretical approaches for studying electron collisions with small molecules

There has been a recent resurgence of interest in the use of algebraic variational methods for studying a variety of collision problems. Much of this interest stems from the discovery that spurious singularities, which plagued the traditional methods, can be eliminated when the variational principle is formulated with outgoing-wave boundary conditions. Another reason for the recent activity is the obvious suitability of these methods to present-day supercomputers. My purpose here is to describe an implementation of the complex Kohn method, an algebraic variational technique, for studying electron collisions with small molecules, both liner and non-linear, unlike variational principles based on the integral form of the Schroedinger equation (Lippmann-Schwinger equation), the method only requires Hamiltonian matrix elements. I will also show how the formalism allows one to develop a variational principle for computing first-order properties, such as bound-free dipole transition amplitudes. I will show results for the electron-impact dissociation of hydrogen as a function of initial vibrational quantum number. I will also illustrate the method for polyatomic molecules with results for elastic scattering of electrons by formaldehyde. 14 refs., 2 figs.
Date: June 7, 1989
Creator: Rescigno, T. N.
Object Type: Article
System: The UNT Digital Library
Texas Attorney General Opinion: LO89-46 (open access)

Texas Attorney General Opinion: LO89-46

Letter opinion 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, Jim Mattox, regarding a legal question submitted for clarification: Whether the City Commission of Carthage may reduce the amount of funding to the police department for maintenance and repair of vehicles as the result of the forfeiture of three automobiles to the city by the district court under section 5.08 of article 4476-15, V.T.C.S..
Date: June 7, 1989
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: LO89-47 (open access)

Texas Attorney General Opinion: LO89-47

Letter opinion 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, Jim Mattox, regarding a legal question submitted for clarification: Whether a state agency with the power of eminent domain may take a homestead by condemnation.
Date: June 7, 1989
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Parks & Wildlife News, June 7,1989 (open access)

Texas Parks & Wildlife News, June 7,1989

Weekly newsletter discussing natural resources, parks, hunting and fishing, and other information related to the outdoors in Texas.
Date: June 7, 1989
Creator: Texas. Parks and Wildlife Department.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History