Computer program provides linear sampled- data analysis for high order systems

Computer program performs transformations in the order S-to W-to Z to allow arithmetic to be completed in the W-plane. The method is based on a direct transformation from the S-plane to the W-plane. The W-plane poles and zeros are transformed into Z-plane poles and zeros using the bilinear transformation algorithm

Direct and Indirect Searches for Low-Mass Magnetic Monopoles

Recently, there has been renewed interest in the search for low-mass magnetic monopoles. At the University of Oklahoma we are performing an experiment (Fermilab E882) using material from the old D0 and CDF detectors to set limits on the existence of Dirac monopoles of masses of the order of 500 GeV. To set such limits, estimates must be made of the production rate of such monopoles at the Tevatron collider, and of the binding strength of any such produced monopoles to matter. Here we sketch the still primitive theory of such interactions, and indicate why we believe a credible limit may still be obtained. On the other hand, there have been proposals that the classic Euler-Heisenberg Lagrangian together with duality could be employed to set limits on magnetic monopoles having masses less than 1 TeV, based on virtual, rather than real processes. The D0 collaboration at Fermilab has used such a proposal to set mass limits based on the nonobservation of pairs of photons each with high transverse momentum. We critique the underlying theory, by showing that the cross section violates unitarity at the quoted limits and is unstable with respect to radiative corrections. We therefore believe that no significant limit can be obtained from the current experiments, based on virtual monopole processes.Comment: 20 pages, 1 ps figure, contributed to Kurt Haller's festschrif

Apparatus for remote handling of materials

Apparatus for remote handling of materials are described. A closed housing is provided with first and second containers and first and second reservoirs for holding materials to be mixed. The materials are transferable from the reservoirs to the first container where they are mixed. The mixed materials are then conveyed from the first container to the second container preferably by dumping the mixed materials into a funnel positioned over the second container. The second container is then moved to a second position for analysis of the mixed materials. For example, the materials may be ignited and the flame analyzed. Access, such as a sight port, is provided in the housing at the analysis position. The device provides a simple and inexpensive apparatus for safely mixing a pyrophoric material and an oxidizer which together form a thermite type mixture that burns to produce a large quantity of heat and light

Theoretical and Experimental Status of Magnetic Monopoles

The Tevatron has inspired new interest in the subject of magnetic monopoles. First there was the 1998 D0 limit on the virtual production of monopoles, based on the theory of Ginzberg and collaborators. In 2000 the first results from an experiment (Fermilab E882) searching for real magnetically charged particles bound to elements from the CDF and D0 detectors were reported. This also required new developments in theory. The status of the experimental limits on monopole masses will be discussed, as well as the limitation of the theory of magnetic charge at present.Comment: 14 pages, 5 figures, talk given at 5th Workshop on Quantum Field Theory Under External Condition

The Public Defender

A Review of The Public Defender by Lisa J. McIntyr

An Analysis of Residential Camp Site Structure !or Two Early Archaic Assemblages from Rose Island (40MR44), Tennessee

The site structure of two Early Archaic period assemblages is defined through spatial analysis of artifact and facility distributions at the Rose Island site (40MR44) in the lower Little Tennessee River valley. These assemblages derive from well controlled excavation of deeply buried alluvial deposits attributable to LeCroy (c. 6100-6500 B.C.) and St. Albans (c. 6600-7000 B.C.) temporal units. Spatial patterning is detected using multivariate statistical analysis of formal implement, instant tool, and debitage categories. The observed spatial patterns are interpreted through a comparison with expected spatial patterns generated from an a priori model of hunter-gatherer residential camp activity structure. The results of the analysis allow the proposal of a general model of Early Archaic residential camp site structure. The model identifies activity areas based upon densities and spatial relationships of artifact categories for an assemblage. The reconstructed activity structure describes the location of the family hearth as occurring in front of the opening of the shelter. A wide range of activities are localized around the family hearth. More specialized activities, such as flintworking, hideworking, and the roasting of game, are conducted near the shelter, but apart from the family hearth

Blind Mans Buff Galop

https://digitalcommons.library.umaine.edu/mmb-ps/1410/thumbnail.jp

Voices Of The Night : Reverie

https://digitalcommons.library.umaine.edu/mmb-ps/1706/thumbnail.jp