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Constructive Approach to the Ground-State Energy of a Hard-Core Square-Well Fermion System (open access)

Constructive Approach to the Ground-State Energy of a Hard-Core Square-Well Fermion System

I am looking at the old problem of the ground-state energy of quantum many-Fermion systems. My tools will be a version of perturbation theory. It is plain that the ordinary, low-density rearrangement can not be used directly to compute the saturation energy and density of a system for which the two-body potential has a strong repulsive core and an attractive portion beyond the core, because the path of continuation from low-density to saturation density passes through the two-phase (vacuum, liquid) region. Likewise it is difficult to supply an expansion directly in lambda for fixed rho (density) because of the difficulty of the strong repulsive core and the tediousness of the calculations. My approach here is to expand the energy in a double series in k/sub F/, the Fermi momentum, and lambda, the strength of the attractive part of the potential. The plan is then to sum up, by the Pade method or a generalization of it, the k/sub F/ expansions of the coefficients of each power of lambda into a function of k/sub F/. The coefficient of lambda/sup 0/ is just the repulsive-core energy itself.
Date: September 1, 1984
Creator: Baker, G. A., Jr.
System: The UNT Digital Library
Bar code instrumentation for nuclear safeguards (open access)

Bar code instrumentation for nuclear safeguards

This paper presents a brief overview of the basic principles of bar codes and the equipment used to make and to read bar code labels, and a summary of some of the more important factors that need to be considered in integrating bar codes into an information system.
Date: January 1, 1984
Creator: Bieber, A. M., Jr.
System: The UNT Digital Library
For the Record, Winter 1984-85 (open access)

For the Record, Winter 1984-85

For the Record section including the minutes of the quarterly board meeting of the Board of Directors of the Oklahoma Historical Society that was held on July 25, 1984. It also includes lists of new annual and life members from April 28 to July 25, 1984, and a list of donors who gave gifts to the OHS in the second quarter of 1984.
Date: Winter 1984
Creator: Oklahoma Historical Society
System: The Gateway to Oklahoma History
For the Record, Fall 1984 (open access)

For the Record, Fall 1984

For the Record section including the minutes of the Oklahoma Historical Society annual meeting and the minutes of quarterly board meeting of the Board of Directors of the OHS that were both held on April 27, 1984. It also includes lists of new annual and life members from January 26 to April 27, 1984, and a list of donors who gave gifts to the OHS in the first quarter of 1984.
Date: Autumn 1984
Creator: Oklahoma Historical Society
System: The Gateway to Oklahoma History
For the Record, Spring 1984 (open access)

For the Record, Spring 1984

For the Record section including the minutes of the quarterly board meeting of the Board of Directors of the Oklahoma Historical Society that was held on October 26, 1983. It also includes lists of new annual and life members from July 28 to October 26, 1983 and a list of donors who gave gifts to the OHS in the third quarter of 1983.
Date: Spring 1984
Creator: Oklahoma Historical Society
System: The Gateway to Oklahoma History
Notes and Documents, Fall 1984 (open access)

Notes and Documents, Fall 1984

Notes and Documents column including a report from S. S. Scott, Confederate Commissioner of Indian Affairs, during his first tour of Indian Territory. It includes an introduction by Mark Lea "Beau" Cantrell providing historical context for his report on "Conditions of the Indians West of Arkansas, 1863" and their loyalties.
Date: Autumn 1984
Creator: Scott, S. S. & Cantrell, Mark Lea
System: The Gateway to Oklahoma History
Note and Documents, Spring 1984 (open access)

Note and Documents, Spring 1984

Notes and Documents column including a 1984 update of the Constitution of the Oklahoma Historical Society as well as the Bylaws of the Oklahoma Historical Society.
Date: Spring 1984
Creator: Oklahoma Historical Society
System: The Gateway to Oklahoma History
Advancement of Remote Technology: Past Perspectives and Future Plans (open access)

Advancement of Remote Technology: Past Perspectives and Future Plans

In the Consolidated Fuel Reprocessing Program at the Oak Ridge National Laboratory, a comprehensive remote systems development program has existed for the past five years. The new remote technology under development is expected to significantly improve remote operations by extending the range of admissible remote tasks and increasing remote work efficiency. The motivation and justification for the program are discussed by surveying the 40 years of remote operating experience which exists and considering the essential features of various old and new philosophies which have been, or are being, used in remote engineering. A future direction based upon the Remotex concept is explained, and recent progress in the development of an advanced servomanipulator-based maintenance concept is summarized to show that a new generation of remote systems capability is feasible through advanced technology. 20 references, 10 figures, 1 table.
Date: January 1, 1984
Creator: Feldman, M. J. & Hamel, W. R.
System: The UNT Digital Library