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Studies Of Rotationally Inelastic Collisions In Argon + Hydrogen Fluoride, James J C Barrett

Doctoral Dissertations

In this dissertation we examine rotationally inelastic collisions involving an atom plus a diatom. We concentrate specifically on the Ar + HF system. In these investigations we employ a number of theoretical methods, including classical trajectories, quantum close-coupled calculations and semiclassical methods, to examine the differential cross sections in Ar + HF. We also investigate the effects of various "sudden" approximations on the scattering dynamics and the limitations of these approximations.

Through this work we were able to identify a new quantum feature in rotationally inelastic scattering. By studying the time evolution of transition amplitudes (rather than probabilities) we are …

Table Of Contents, Volume Four, Number One, Winter 1993, Risk Editorial Board

RISK: Health, Safety & Environment (1990-2002)

Table of contents for the journal Risk: Issues in Health & Safety (ISSN: 1073-8673).

Economic Impacts Of Noxious Facilities: Incorporating The Effects Of Risk Aversion, Leslie A. Nieves

RISK: Health, Safety & Environment (1990-2002)

The author suggests an integrative approach for projecting economic impacts of facilities that elicit public Risk aversion. She incorporates both economic stimulus effects and perception-based effects of facilities on the host area economy. Empirical findings are compared and an impact estimation framework is suggested for integrating psychometric and econometric techniques.

Downhole Logging As A Paeoceanographic Tool On Ocean Drilling Program Leg 138: Interface Between High-Resolution Stratigraphy And Regional Syntheses, Mitchell Lyle, Larry A. Mayer, Nicklas G. Pisias, T. K. Hagelberg, Kathleen A. Dadey, Stephen F. Bloomer, Shipboard Scientific Party

Affiliate Scholarship

On Ocean Drilling Program (ODP) Leg 138, standard shipboard procedures were modified to allow for the real-time monitoring of several laboratory core-scanning systems that provide centimeter-scale measurements of saturated bulk density, magnetic susceptibility and digital color reflectance. These continuous, high-resolution data sets were used to ensure the proper offset of multiple holes and to splice together complete sedimentary sections. Typically, the spliced, continuous sediment sections were found to be about 10% longer than the section drilled, as measured by the length of the drill string. While the source of this elongation is not yet fully understood, it must be compensated …

Downhole Logging As A Paeoceanographic Tool On Ocean Drilling Program Leg 138: Interface Between High-Resolution Stratigraphy And Regional Syntheses, Mitchell Lyle, Larry A. Mayer, Nicklas G. Pisias, T. K. Hagelberg, Kathleen A. Dadey, Stephen F. Bloomer

Center for Coastal and Ocean Mapping

On Ocean Drilling Program (ODP) Leg 138, standard shipboard procedures were modified to allow for the real-time monitoring of several laboratory core-scanning systems that provide centimeter-scale measurements of saturated bulk density, magnetic susceptibility and digital color reflectance. These continuous, high-resolution data sets were used to ensure the proper offset of multiple holes and to splice together complete sedimentary sections. Typically, the spliced, continuousediment sections were found to be about 10% longer than the section drilled, as measured by the length of the drill string. While the source of this elongation is not yet fully understood, it must be compensated for …

The New Hampshire, Vol. 83, No. 18 (Nov. 6, 1992), The New Hampshire

The New Hampshire Print Edition

An independent student produced newspaper from the University of New Hampshire.

Beryllium 7 And Lead 210 In The Western Hemisphere Arctic Atmosphere: Observations From Three Recent Aircraft-Based Sampling Programs, Jack E. Dibb, R. Talbot, G L. Gregory

Earth Sciences

Concentrations of the natural radionuclides ⁷Be and ²¹⁰Pb were determined in aerosol samples collected in the western hemisphere Arctic during the recent NOAA Arctic Gas and Aerosol Sampling Program (AGASP 3) and NASA Global Tropospheric Experiment/Arctic Boundary Layer Expeditions (GTE/ABLE 3A and ABLE 3B) missions. Beryllium 7 showed a free tropospheric concentration maximum between 4 and 5 km in the summer of 1990. Previous ⁷Be data obtained in the late 1950s and early 1960s also indicated a similar vertical distribution of ⁷Be near 70°N. Injection of stratospheric air through tropopause folds associated with the Arctic jet …

The New Hampshire, Vol. 83, No. 07 (Sep. 29, 1992), The New Hampshire

The New Hampshire Print Edition

An independent student produced newspaper from the University of New Hampshire.

Table Of Contents, Volume Three, Number Four, Fall 1992, Risk Editorial Board

RISK: Health, Safety & Environment (1990-2002)

Table of contents for the journal Risk: Issues in Health & Safety (ISSN: 1073-8673).

Title Index To Volume Three, Risk Editorial Board

RISK: Health, Safety & Environment (1990-2002)

Title index to all articles published in Volume Three (1992) of the journal Risk: Issues in Health and Safety.

Mountain Goat Removal In Olympic National Park: A Case Study Of The Role Of Organizational Culture In Individual Risk Decisions And Behavior, Seth Tuler, Gary E. Machlis, Roger E. Kasperson

RISK: Health, Safety & Environment (1990-2002)

Using a case study, the authors explore the mediating role of organizational culture in individual Risk-taking decisions and behaviors. They argue that organizational culture can establish unique conditions that lead to highly reliable performance of high-Risk, undesired tasks. The authors also discuss the need for further research and its implications for Risk management.

Book Review Index To Volume Three, Risk Editorial Board

RISK: Health, Safety & Environment (1990-2002)

Index to book reviews published in Volume Three (1992) of the journal Risk: Issues in Health and Safety.

Testing The Role Of Technical Information In Public Risk Perception, Branden B. Johnson, Peter M. Sandman, Paul Miller

RISK: Health, Safety & Environment (1990-2002)

It is widely believed that more detail about health effects and likely exposure routes is apt to reduce citizens' concerns about low-probability Risks. The authors' study suggests that providing such detail may not be as useful as, e.g., addressing public concerns and keeping citizens current on officials' actions.

Author Index To Volume Three, Risk Editorial Board

RISK: Health, Safety & Environment (1990-2002)

Index by author to all articles published in Volume Three (1992) of the journal Risk: Issues in Health and Safety.

Book Review, Peter C. Christensen

RISK: Health, Safety & Environment (1990-2002)

Review of: MARY R. ENGLISH, SITING LOW-LEVEL RADIOACTIVE WASTE DISPOSAL FACILITIES: THE PUBLIC POLICY DILEMMA. (Quorum Books 1992) [278 pp.], Appendices, index, introduction, references. LC-91-42774; ISBN 0-89930-560-1. [$49.95 cloth. One Madison Avenue, New York NY 10010.]

Using Risk On Disk, Risk Editorial Board

RISK: Health, Safety & Environment (1990-2002)

Short announcement from Volume 3 (1992) stating that computer access to Risk is available on 3.5 inch floppy disks. The announcement describes how to search the computerized volumes and recommends some search applications that can be used to search the computerized content.

Risk Estimation And Expert Judgment: The Case Of Yucca Mountain, Kristin Shrader-Frechette

RISK: Health, Safety & Environment (1990-2002)

Professor Shrader-Frechette discusses factors responsible for acute disagreement between the federal government and Nevada citizens over potential Risks at Yucca Mountain and focuses on the use of expert judgment, concluding that some of them appear to exemplify "bad science." That aside, she argues that 1,000 year predictions cannot be made from current knowledge of geology or, e.g., institutional behavior and concludes that permanent disposal of radioactive waste is currently impossible.

Metaphoric Coherence: Distinguishing Verbal Metaphor From `Anomaly', Sylvia Weber Russell

Computer Science

Theories and computational models of metaphor comprehension generally circumvent the question of metaphor versus “anomaly” in favor of a treatment of metaphor versus literal language. Making the distinction between metaphoric and “anomalous” expressions is subject to wide variation in judgment, yet humans agree that some potentially metaphoric expressions are much more comprehensible than others. In the context of a program which interprets simple isolated sentences that are potential instances of cross‐modal and other verbal metaphor, I consider some possible coherence criteria which must be satisfied for an expression to be “conceivable” metaphorically. Metaphoric constraints on object nominals are represented as …

Differential Phase Estimation With The Seamarc Ii Bathymetric Sidescan Sonar System, M A. Masnadi-Shirazi, Christian De Moustier, Pierre Cervenka, Stanley H. Zisk

Center for Coastal and Ocean Mapping

A maximum-likelihood estimator is used to extract differential phase measurements from noisy seafloor echoes received at pairs of transducers mounted on either side of the SeaMARC II bathymetricsidescan sonar system. Carrier frequencies for each side are about 1 kHz apart, and echoes from a transmitted pulse 2 ms long are analyzed. For each side, phase difference sequences are derived from the full complex data consisting of base-banded and digitized quadrature components of the received echoes. With less bias and a lower variance, this method is shown to be more efficient than a uniform mean estimator. It also does not exhibit …

Chemistry And Acidity Of Cloud Water At Mount Washington, Nh, Byard W. Mosher

NH Water Resources Research Center Scholarship

No abstract provided.

Book Review, Kristin S. Shrader-Frechette

RISK: Health, Safety & Environment (1990-2002)

Review of the following: ROGER COOKE, EXPERTS IN UNCERTAINTY: OPINION AND SUBJECTIVE PROBABILITY IN SCIENCE. (Oxford University Press 1991) [321 pp.] Index of names, index of subjects, tables. LC 90-22493; ISBN 0-19-506465-8 (cloth $65.00). [200 Madison Ave., New York NY 10016]

Table Of Contents, Volume Three, Number Three, Summer 1992, Risk Editorial Board

RISK: Health, Safety & Environment (1990-2002)

Table of contents for the journal Risk: Issues in Health & Safety (ISSN: 1073-8673).

Standard Operating Procedures And Field Methods Used For Conducting Ecological Risk Assessment Case Studies, Cornelia Mueller, Wayne R. Munns Jr., Donald J. Cobb, Elise A. Petrocelli, Gerald G. Pesch, William G. Nelson, David M. Burdick, Frederick T. Short, Robert K. Johnston

Jackson Estuarine Laboratory

No abstract provided.

The New Hampshire, Vol. 82, No. 37 (Mar. 3, 1992), The New Hampshire

The New Hampshire Print Edition

An independent student produced newspaper from the University of New Hampshire.

Evaluation And Verification Of Bottom Acoustic Reverberation Statistics Predicted By The Point Scattering Model, Dimitri Alexandrou, Christian De Moustier, G Haralabus

Center for Coastal and Ocean Mapping

The point scatteringmodel offers a parameterization of the reverberation probability density function (pdf) in terms of the coefficient of excess (kurtosis) and a coherent component represented by a harmonic process with random phase. In this paper the potential utility of this parametrization is investigated in the context of seafloor characterization. The problem of separating out the effect of each parameter is discussed. Computer simulations are used to verify model predictions on the reverberation quadrature, envelope, and phase pdf. As part of the verification study, the scatterer density was determined from the kurtosis of the reverberation quadrature pdf. A statistical analysis …

Book Review, Thomas G. Field Jr.

RISK: Health, Safety & Environment (1990-2002)

Review of the following book: THOMAS GILOVICH, How WE KNOW WHAT ISN'T SO: THE FALLIABILITY OF REASON IN EVERYDAY LIFE. (The Free Press 1991) [216 pp.] Index, notes. CIP: 90-26727; ISBN: 0-02-911705-4. [Cloth $19.95. 866 Third Ave. New York, NY 10022.]

Table Of Contents, Volume Three, Number Two, Spring 1992, Risk Editorial Board

RISK: Health, Safety & Environment (1990-2002)

Table of contents for the journal Risk: Issues in Health & Safety (ISSN: 1073-8673).

Identifying Chemical Hazards For Regulation: The Scientific Basis And Regulatory Scope Of California's Proposition 65 List Of Carcinogens And Reproductive Toxicants, William S. Pease

RISK: Health, Safety & Environment (1990-2002)

Noting that the Proposition 65 list has become an authoritative source for hazard identification, Dr. Pease examines its legislative, regulatory and scientific origins. After analyzing the California approach, he offers suggestions for better selection of future regulatory targets.

The New Hampshire, Vol. 82, No. 33 (Feb. 18, 1992), The New Hampshire

The New Hampshire Print Edition

An independent student produced newspaper from the University of New Hampshire.

The Accumulation Of 210pb At Summit, Greenland Since 1855, Jack E. Dibb

Earth Sciences

The decay corrected activity of 210Pb at the time of deposition shows considerable short term variability, but no clear seasonal or annual periodicity. 210Pb activity in surface snow at this site has averaged 0.7 pCi kg-1 since 1927, but the period 1915-1927 is characterized by a steady decline from higher levels. The average annual accumulation of 210Pb has markedly declined since at least 1870. Similar observation at Dye 3 suggest that 210Pb accumulation has decreased throughout this century over much of the Greenland Ice Sheet. If the records of 210Pb in the firn of the Greenland Ice Sheet are mainly …