Digital Commons Network^™

Mega: The Next Generation Medium Energy Gamma-Ray Telescope, James M. Ryan, R Andritsche, Peter F. Bloser, J Cravens, M L. Cherry, G Dicocco, T G. Guzik, Dieter H. Hartman, Stanley D. Hunter, G Kanbach, R M. Kippen, J Kurfess, John R. Macri, Mark L. Mcconnell, R S. Miller, W Paciesas, B F. Phlips, V Reglero, J G. Stacy, Mark Strickman, W T. Vestrand, J P. Wefel, Eric Wulf, A Zoglauer, Allen Zych

Space Science Center

The MEGA mission would enable a sensitive all-sky survey of the medium-energy ?-ray sky (0.3-50 MeV). This mission will bridge the huge sensitivity gap between the COMPTEL and OSSE experiments on the Compton Gamma Ray Observatory, the SPI and IBIS instruments on INTEGRAL and the visionary ACT mission. It will, among other things, serve to compile a much larger catalog of sources in this energy range, perform far deeper searches for supernovae, better measure the galactic continuum emission as well as identify the components of the cosmic diffuse emission. The large field of view will allow MEGA to continuously monitor …

Vision-Based Human Directed Robot Guidance, Richard B. Arthur

Theses and Dissertations

This paper describes methods to track a user-defined point in the vision of a robot as it drives forward. This tracking allows a robot to keep itself directed at that point while driving so that it can get to that user-defined point. I develop and present two new multi-scale algorithms for tracking arbitrary points between two frames of video, as well as through a video sequence. The multi-scale algorithms do not use the traditional pyramid image, but instead use a data structure called an integral image (also known as a summed area table). The first algorithm uses edge-detection to track …

Photon And Neutral Pion Production In Au+Au Collisions At √SNn=130 Gev, Star Collaboration, T.D. Gutierrez

Physics

We report inclusive photon measurements about midrapidity (∣y∣<0.5) from ¹⁹⁷Au+¹⁹⁷Au collisions at √s_NN=130 GeV at RHIC. Photon pair conversions were reconstructed from electron and positron tracks measured with the Time Projection Chamber (TPC) of the STAR experiment. With this method, an energy resolution of ΔE ∕ E≈2% at 0.5GeV has been achieved. Reconstructed photons have also been used to measure the transverse momentum (p_t) spectra of π0mesons about midrapidity (∣y∣<1) via the π⁰→γγ decay channel. The fractional contribution of the π⁰→γγ decay to the inclusive photon spectrum decreases by 20%±5% between p_{t …}

The Generation Of A Digital Phantom For Testing Of Digitally Reconstructed Radiographs, Nicholas Andrew, Mason

USF Tampa Graduate Theses and Dissertations

The construction of phantoms for testing imaging parameters has been well documented in the literature. As computers have been introduced into the different areas of medicine, they have become more and more relied upon to replace conventional technologies. One specific example is that of plane film X-rays. Digitally Reconstructed Radiographs (DRR's) are computer generated images that are generated from a 3 D volume of data, such as CT or MRI axial scans, and can be used in place of conventional X rays. The computer can generate a DRR image for any position, orientation and magnification, and geometries not physically possible …

October 11, 2004 Aasu Faculty Meeting Minutes, Armstrong Atlantic State University

Armstrong Faculty Senate: Minutes (Archived)

October 11, 2004 Armstrong Atlantic State University Faculty Meeting Minutes

Globular Cluster And Galaxy Formation: M31 The Milky Way And Implications For Globular Cluster Systems Of Spiral Galaxies, David Burstein, Yong Li, Kenneth C. Freeman, John E. Norris, Michael S. Bessell, Joss Bland-Hawthorn, Brad K. Gibson, Mlchael A. Beasley, Hyun Chul Lee, Beatriz Barbuy

Physics & Astronomy Faculty Publications

We find that the globular cluster (GC) systems of the Milky Way and of our neighboring spiral galaxy, M31, comprise two distinct entities, differing in three respects. First, M31 has a set of young GCs, ranging in age from a few times 10 2 Myr to 5 Gyr old, as well as old GCs. No such very young GCs are known in the Milky Way. Second, we confirm that the oldest M31 GCs have much higher nitrogen abundances than do Galactic GCs at equivalent metallicities, while carbon abundances appear normal for the GCs in both galaxies. Third, Morrison and coworkers …

Variation Simulation Of Fixtured Assembly Processes For Compliant Structures Using Piecewise-Linear Analysis, Michael L. Stewart

Theses and Dissertations

While variation analysis methods for compliant assemblies are not new, little has been done to include the effects of multi-step, fixtured assembly processes. This thesis introduces a new method to statistically analyze compliant part assembly processes using fixtures. This method, consistent with the FASTA method developed at BYU, yields both a mean and a variant solution. The method, called Piecewise-Linear Elastic Analysis, or PLEA, is developed for predicting the residual stress, deformation and springback variation in compliant assemblies. A comprehensive, step-by-step analysis map is provided. PLEA is validated on a simple, laboratory assembly and a more complex, production assembly. Significant …

Volume 40 - Issue 05 - Friday, October 8, 2004, Rose Thorn Staff

The Rose Thorn Archive

The Rose Thorn, Rose-Hulman's independent student newspaper.

Angular Dependence Of The Dipole-Dipole Interaction In A Nearly One-Dimensional Sample Of Rydberg Atoms, Thomas J. Carroll, Katharine Claringbould, Anne Goodsell, M. J. Lim, Michael Noel

Physics Faculty Research and Scholarship

Atoms in an ultracold highly excited sample are strongly coupled through the dipole-dipole interaction. In an effort to understand and manipulate the complicated interactions in this system we are investigating their dependence on the relative orientation of the dipoles. By focusing a 480 nm beam from a tunable dye laser into a magneto-optical trap, we produce a nearly one-dimensional sample of Rydberg atoms. The trap lies at the center of four conducting rods with which we can vary the magnitude and direction of the electric field at the trap, thus controlling the orientation of the dipoles with respect to the …

Physical Significance Of Q Deformation And Many-Body Interactions In Nuclei, K. D. Sviratcheva, C. Bahri, A. I. Georgieva, J. P. Draayer

Faculty Publications

The pairing correlations in nuclie with mass 40 ≤ A ≤ 100 were studied. The study was carried out by using the concept of quantum deformation. It was observed that the q ≠ 1 was uniformly superior to those of the nondeformed limit and that the q parameter varies smoothly with nuclear characteristics. It was found that the q deformation plays a significant role in understanding higher-order effects in the many body interaction.

An Introduction To The Tutte Polynomial, Haidong Wu

Combinatorics Seminar

In this talk, I will give a brief introduction to the Tutte polynomial. Tutte polynomial is a 2-variable polynomial which was first defined by Tutte in 1954 based on his earlier work in 1947. It has numerous applications.

Mohanty And Webb Reply, P. Mohanty, Richard A. Webb

Faculty Publications

A Reply to the Comment by V. I. Fal'ko et al.

Herbivore Experience With Plant Defense Compounds Influences Acquisition Of New Flavor Aversions, Bruce A. Kimball, Dale L. Nolte

United States Department of Agriculture Wildlife Services: Staff Publications

Multiple experiments were conducted with a mammalian herbivore to determine how experience

with plant secondary metabolites (terpenes and tannins) influenced acquisition of new aversions to

diets containing these same plant metabolites. Goats (Capra aegagrus hircus) were employed as

behavioral models for this study. Twenty-four subjects were assigned to three treatment groups that

received 20 days of experience with test diets: (A) terpene diet only; (B) tannin diet only; and (C)

terpene and tannin diets offered singly on alternate days. In experiment 1, all subjects were offered

both diets in a two-choice test to determine if experience affected diet preference. Both …

Stat 4611 Course Proposal 10/07/2004, Curriculum Committee

Curriculum Committee Reports

No abstract provided.

Math 3993 Course Proposal 10/07/2004, Curriculum Committee

Curriculum Committee Reports

No abstract provided.

Stat 4631 Course Proposal 10/07/2004, Curriculum Committee

Curriculum Committee Reports

No abstract provided.

Math 1993 Course Proposal 10/07/2004, Curriculum Committee

Curriculum Committee Reports

No abstract provided.

History Discipline Multiple Course Revisions 10/07/2004, Curriculum Committee

Curriculum Committee Reports

No abstract provided.

The Setonian, October 7, 2004, Seton Hall University

2004

No abstract provided.

R.I.T. News & Events - October 7, 2004, University News Services, Rochester Institute Of Technology

University Publications

Main features of this issue: Shakers Blends now open; NSF grant helps transfers; Campus Dialogue week, Oct. 25-29; Significant medical plan changes in 2005; Event to bring election issues closer to home; RPO to play two concerts; Stonehurst Capital Regatta, Oct. 10; Stressing safety in robberys wake; RIT to host blockbuster entertainers for Brick City Fest; Charles Arnold lecture, Oct. 21; NTID, Sprint partnership; Staff Council names award nominees; Cary prints commemorative book; Provost donates $1.4 million to RIT campaign; RIT sharpens retention focus; New computer security degree for GCCIS; NTID has hand in research center

Csci 3511 Course Proposal 10/07/2004, Curriculum Committee

Curriculum Committee Reports

No abstract provided.

Math 2993 Course Proposal 10/07/2004, Curriculum Committee

Curriculum Committee Reports

No abstract provided.

Educational Policies Committee Agenda, October 7, 2004, Utah State University

Educational Policies Committee

• Subcommittee Reports
• Curriculum Subcommittee
• Course Approvals
• Curriculum Subcommittee Handbook

Faculty Senate Chronicle For October 7, 2004, Rose Marie Konet

The University of Akron Faculty Senate Chronicle

Minutes of the regular meeting of The University of Akron Faculty Senate on October 7, 2004.

October 2004 General Studies Council Minutes, University Of Nebraska At Kearney General Studies Council

General Education Council

No abstract provided.

Curriculum Subcommittee Minutes, October 7, 2004, Utah State University

Educational Policies Committee

Department of Animal, Dairy and Veterinary Sciences

• New Course
• Credit Hour Change

Department of Business Information Systems

• Service Learning Request

Department of Communicative Disorders and Deaf Education

• Service Learning Request

Department of Psychology

• Service Learning Request

Department of Special Education and Rehabilitation

• Title Change, Credit Hour Change, Course Description Change

Department of Biological and Irrigation Engineering

• New Course
• Credit Hour Change
• Prerequisite Change

Department of Civil and Environmental Engineering

• Prerequisite Change
• Title Change, Add Multiple List

Department of Electrical and Computer Engineering

• Prerequisite Change

Department of Mechanical and Aerospace Engineering

• New Course
• Prerequisite Change
• Title Change, Course Description Change

Department …

Educational Policies Committee Minutes, October 7, 2004, Utah State University

Educational Policies Committee

• Subcommittee Reports
• Curriculum Subcommittee
• Academic Standards Subcommittee
• General Education Subcommittee
• Course Approvals
• Syllabus Approval

High Dispersal In A Frog Species Suggests That It Is Vulnerable To Habitat Fragmentation, W. Chris Funk, Allison E. Greene, Paul Stephen Corn, Fred W. Allendorf

United States Geological Survey: Staff Publications

Global losses of amphibian populations are a major conservation concern and their causes have generated substantial debate. Habitat fragmentation is considered one important cause of amphibian decline. However, if fragmentation is to be invoked as a mechanism of amphibian decline, it must first be established that dispersal is prevalent among contiguous amphibian populations using formal movement estimators. In contrast, if dispersal is naturally low in amphibians, fragmentation can be disregarded as a cause of amphibian declines and conservation efforts can be focused elsewhere. We examined dispersal rates in Columbia spotted frogs (Rana luteiventris) using capture–recapture analysis of over …

Use Of Positron Annihilation Spectroscopy For Stress-Strain Measurements: Quarterly Progress Report (June 01 – August 31, 2004), Ajit K. Roy

Transmutation Sciences Materials (TRP)

Highlights of Test Results:

• Residual stress measurements by the RC method on cold-worked specimens showed tensile residual stresses in austenitic stainless steel. However, compressive residual stresses were observed in martensitic stainless steel. This difference may be attributed to the difference in metallurgical phases and microstructures resulting from different thermal treatments imparted to them.

• Residual stress measurements by both ND and RC techniques on welded specimens showed similar patterns. Welded specimens consisting of similar material showed tensile residual stresses in the vicinity of the fusion line (FL). However, welded specimens consisting of dissimilar materials (austenitic and martensitic stainless steel …

Immobilization Of Fission Iodine By Reaction With A Fullerene Containing Carbon Compound And Insoluble Natural Organic Matrix: Quarterly Report August-September 2004, Spencer M. Steinberg

Separations Campaign (TRP)

During first year of the project we were able to demonstrate iodine sorption by a sphagnum peat and Ca(OH)2 mixture. We decided to explore varying the ratio of Ca(OH)2 to sphagnum on the retention of iodine in both the iodine generator experiments and the fuel rod simulator experiments.

We also constructed a device for simulating the dissolution of fuel rods. Early experiments were impacted by sorption of iodine onto various components of the sorption train. We have eliminated or minimized iodine sorption by the system components. We retested both FCC and the sphagnum using this device. In these experiments a …