Engineering Commons^™

Modeling, Fabrication, And Optimization Of Niobium Cavities: Phase Ii, Robert A. Schill Jr., Mohamed Trabia

Transmutation Sciences Materials (TRP)

Niobium cavities are important parts of the integrated NC/SC high-power linacs. Over the years, researchers in several countries have tested various cavity shapes. They concluded that elliptically shaped cells are the most appropriate shape for superconducting cavities. The need for very clean surfaces led to the use of a buffered chemical polishing procedure for surface cleaning to get good performance of the cavities. This proposal discusses the second phase of research in the second year of the project.

The first phase (starting Summer 2001) has resulted in improving the basic understanding of multipacting and the process of chemical etching. Based …

Melting At Alkyl Side Chain Comb Polymer Interfaces, K. S. Gautam, Ali Dhinojwala

College of Polymer Science and Polymer Engineering

Infrared visible sum frequency generation (SFG) spectroscopy has been used to study structure and melting transition temperatures of alkyl-side chain-acrylate comb polymers at air and solid interfaces. At the air interface, the SFG spectra show methyl bands and two transitions are observed: the first, near the bulk melting temperature, T-m, and the second 10-20degreesC higher than T-m. The shorter the alkyl side chain, the larger the difference between the two transition temperatures. In contrast, methylene bands are observed at sapphire interface with a single transition near T-m (C18).

2002 - The Seventh Annual Symposium Of Student Scholars

Symposium of Student Scholars Program Books

The full program book from the Seventh Annual Symposium of Student Scholars, held on April 5, 2002. Includes abstracts from the presentations and posters.

Stanford Microsats, Robert J. Twiggs

Robert "Bob" Twiggs STEM Education Collection

A PowerPoint Presentation created by Professor Bob Twiggs titled "Stanford MicroSats" from April 5, 2002.

Coalbed Methane In The San Juan Basin Of Colorado And New Mexico, Catherine Cullicott, Carolyn Dunmire, Jerry Brown, Chris Calwell

Coalbed Methane Development in the Intermountain West (April 4-5)

35 pages (includes color illustrations and maps).

Contains 6 pages of endnotes.

Coalbed Methane Development In Wyoming’S Powder River Basin, Diana Hulme

Coalbed Methane Development in the Intermountain West (April 4-5)

21 pages (includes color illustrations and maps).

Contains endnotes.

Powder River Basin Coalbed Methane Financial Model (Prb-Cbm-Fm), W. Thomas Goerold

Coalbed Methane Development in the Intermountain West (April 4-5)

12 pages (includes illustrations).

Contains references.

Overview Of Cbm Issues In The San Juan Basin, Catherine Cullicott

Coalbed Methane Development in the Intermountain West (April 4-5)

3 pages (includes some color illustrations and maps).

Impacts Of Cbm Development On Communities, Gwen Lachelt

Coalbed Methane Development in the Intermountain West (April 4-5)

2 pages.

Agenda: Coalbed Methane Development In The Intermountain West, University Of Colorado Boulder. Natural Resources Law Center

Coalbed Methane Development in the Intermountain West (April 4-5)

306 p. : ill., maps ; 28 cm

"July 2002"--Cover

Proceedings of a conference held April 4-5, 2002

Listed as no. 28 in the Research Report Series on the NRLC Recent Publications list

Includes bibliographical references

Contents:

Coalbed methane development in the Intermountain West : a primer / Gary Bryner -- Coalbed methane development in the Intermountain West : case studies. Coalbed methane in the San Juan Basin of Colorado and New Mexico / Catherine Cullicott, Carolyn Dunmire, Jerry Brown, Chris Calwell ; Coalbed methane development in Wyoming's Powder River Basin / Diana Hulme -- Keynote address / Rebecca Watson …

The Hydrology Of Coalbed Methane Reservoirs And The Interplay Of Gas, Water, And Coal In Cbm Production, Leslie Nogaret

Coalbed Methane Development in the Intermountain West (April 4-5)

7 pages (includes color illustrations and map).

Best Cbm D[R]Illing, Completion, Production, Technologies, And Management Practices, Dennis Carlton

Coalbed Methane Development in the Intermountain West (April 4-5)

3 pages.

Cbm Development And Water Issues, Dave Brown

Coalbed Methane Development in the Intermountain West (April 4-5)

7 pages (includes color illustrations).

Keynote Address, John Watts

Coalbed Methane Development in the Intermountain West (April 4-5)

5 pages.

Coalbed Methane In The Rocky Mountain Region: Yesterday, Today And Tomorrow, Matthew R. Silverman

Coalbed Methane Development in the Intermountain West (April 4-5)

8 pages (includes color illustrations and maps).

Contains references.

Developing Cbm In The Powder River Basin, William T. Brown, Jr.

Coalbed Methane Development in the Intermountain West (April 4-5)

5 pages (includes some color illustrations and maps).

Federal, State, And Local Regulatory Framework For Permitting Of Cbm Development, Kate Zimmerman

Coalbed Methane Development in the Intermountain West (April 4-5)

17 pages.

Contains 5 pages of endnotes.

Concluding Comments, Mark Pearson

Coalbed Methane Development in the Intermountain West (April 4-5)

3 pages.

Coalbed Methane Development In The Intermountain West: Primer, Gary Bryner

Coalbed Methane Development in the Intermountain West (April 4-5)

50 pages (includes color illustrations and maps).

Contains 7 pages of endnotes.

An Overview Of Cbm Exploration And Production, Steve De Albuquerque

Coalbed Methane Development in the Intermountain West (April 4-5)

9 pages (includes color illustrations and maps).

Waste Or Wasted? Rethinking The Regulation Of Coalbed Methane Byproduct Water In The Rocky Mountains: A Comparative Analysis Of Approaches To Cbm Produced Water Quantity Legal Issues In Utah, New Mexico, Colorado, Montana And Wyoming, Thomas F. Darin

Coalbed Methane Development in the Intermountain West (April 4-5)

30 pages.

Contains 13 pages of references.

Cbm Development On The Southern Ute Reservation, Bob Zahradnik

Coalbed Methane Development in the Intermountain West (April 4-5)

6 pages (includes color illustrations and maps).

The Geology And Production Characteristics Of The Powder River And Other Cbm Basins In Wyoming, Lance Cook

Coalbed Methane Development in the Intermountain West (April 4-5)

7 pages (includes some color illustrations and maps).

A Review Of Cbm Development In The Powder River And Other Wyoming Basins, Don Likwarz

Coalbed Methane Development in the Intermountain West (April 4-5)

6 pages (includes illustrations).

Cbm Water Management: Challenges, Solutions, And Opportunities, Mike Day

Coalbed Methane Development in the Intermountain West (April 4-5)

15 pages (includes color illustrations and maps).

Cbm Development, Ranching, And Agriculture, Nancy Sorenson, Jill Morrison

Coalbed Methane Development in the Intermountain West (April 4-5)

5 pages.

A Model Study Of Displacement Instabilities During Cyclic Oxidation, Anette M. Karlsson, C. G. Levi, A. G. Evans

Mechanical Engineering Faculty Publications

The shape changes that occur at imperfections on the surface of an alumina-forming alloy, subject to thermal cycling, have been simulated and measured. Observations have been made by emplacing a surface groove into a FeCrAlY material. Upon thermal cycling, large shape distortions have been observed: whereas, for comparable isothermal oxidation, the shape changes are minimal. The simulations predict similar responses. Upon cycling, upward displacements (pile-up) occur around the perimeter, accompanied by downward displacements at the center. Yet, minimal displacements arise upon isothermal oxidation. To realize cyclic displacements comparable in magnitude to those found experimentally, large values of the in-plane growth …

Use Of Positron Annihilation Spectroscopy For Stress-Strain Measurements, Ajit K. Roy

Transmutation Sciences Materials (TRP)

The purpose of this collaborative research project involving the University of Nevada, Las Vegas (UNLV) and Idaho State University (ISU) is to evaluate the feasibility of determining residual stresses of welded (after pre-straining) engineering materials using a new nondestructive technique based on positron annihilation spectroscopy. The proposed technique is to use γ-rays 2 from a small MeV electron Linac to generate positrons inside the sample via pair production. This method can be used for materials characterization and investigation of defects in thick samples that could not be accomplished by conventional positron techniques or other nondestructive methods. The data generated will …

Acuta Enews April 2002, Vol 31, No. 4

ACUTA Newsletters

FCC Grants Limited Access to Calling Party Numbers

Please Join the Team!................. Be a Moderator or Monitor in Reno

DC Update

Constructions Specifications Institute To Expand MasterFormat For Communications

Board Report

A Living Disaster Plan

Welcome New Members

Positions Available

On Efficient Representation Of Expert Knowledge By Fuzzy Logic: Towards An Optimal Combination Of Granularity And Higher-Order Approaches, Hung T. Nguyen, Vladik Kreinovich

Departmental Technical Reports (CS)

A natural approach to designing an intelligent system is to incorporate expert knowledge into this system. One of the main approaches to translating this knowledge into computer-understandable terms is the approach of fuzzy logic. It has led to many successful applications, but in several aspects, the resulting computer representation is somewhat different from the original expert meaning. Two related approaches have been used to make fuzzy logic more adequate in representing expert reasoning: granularity and higher-order approaches. Each approach is successful in some applications where the other approach did not succeed so well; it is therefore desirable to combine these …