Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics Commons

Open Access. Powered by Scholars. Published by Universities.®

PDF

University of Massachusetts Amherst

Series

1993

Discipline
Keyword
Publication

Articles 1 - 30 of 31

Full-Text Articles in Physical Sciences and Mathematics

Polymer Science At The Kyoto Institute Of Technology, Kyoto, Japan, Otto Vogl, Shinzo Kohjiya, Takeo Araki Dec 1993

Polymer Science At The Kyoto Institute Of Technology, Kyoto, Japan, Otto Vogl, Shinzo Kohjiya, Takeo Araki

Emeritus Faculty Author Gallery

No abstract provided.


Advances In Degradable Polymers, Otto Vogl, Andrea Eckert Dec 1993

Advances In Degradable Polymers, Otto Vogl, Andrea Eckert

Emeritus Faculty Author Gallery

No abstract provided.


66. In Memoriam Herman F. Mark, Otto Vogl, Marcel Dekker Dec 1993

66. In Memoriam Herman F. Mark, Otto Vogl, Marcel Dekker

Emeritus Faculty Author Gallery

No abstract provided.


Polymer Science In Milano - Italy, Otto Vogl, Lido Porri, Mario Farina, Guido Audisio Nov 1993

Polymer Science In Milano - Italy, Otto Vogl, Lido Porri, Mario Farina, Guido Audisio

Emeritus Faculty Author Gallery

No abstract provided.


Iupac Symposium On Ring Opening Polymerization '92, Warsaw, Poland, July 7-11, 1992, Otto Vogl, Zbigniew Florjanczyk Nov 1993

Iupac Symposium On Ring Opening Polymerization '92, Warsaw, Poland, July 7-11, 1992, Otto Vogl, Zbigniew Florjanczyk

Emeritus Faculty Author Gallery

No abstract provided.


67. In Memoriam Hermann F. Mark, Otto Vogl Nov 1993

67. In Memoriam Hermann F. Mark, Otto Vogl

Emeritus Faculty Author Gallery

No abstract provided.


Polymer Science And Technology For The 21sth Century, Gerald S. Kirshenbaum, Eli M. Pearce Oct 1993

Polymer Science And Technology For The 21sth Century, Gerald S. Kirshenbaum, Eli M. Pearce

Emeritus Faculty Author Gallery

No abstract provided.


68. Polymers To The Year 2000 And Beyond, Otto Vogl, Herman Mark Oct 1993

68. Polymers To The Year 2000 And Beyond, Otto Vogl, Herman Mark

Emeritus Faculty Author Gallery

No abstract provided.


Polymer Science At Kyoto University, Kyoto, Japan, Otto Vogl Oct 1993

Polymer Science At Kyoto University, Kyoto, Japan, Otto Vogl

Emeritus Faculty Author Gallery

No abstract provided.


Brief On The Bicycle-Pedestrian Pathway Dedication By The Rails-To-Trails Conservancy, The League Of American Bicyclists, The Bicycle Federation Of Oregon, National Wildlife Federation, And The American Society Of Landscape Architects As Amici Curiae In Support Of Respondent. Florence Dolan V. City Of Tigard, In The Supreme Court Of The United States, Andrea Ferster, Elizabeth A. Brabec, Glenn P. Sugamelli, Daniel L. Rabinowitz Oct 1993

Brief On The Bicycle-Pedestrian Pathway Dedication By The Rails-To-Trails Conservancy, The League Of American Bicyclists, The Bicycle Federation Of Oregon, National Wildlife Federation, And The American Society Of Landscape Architects As Amici Curiae In Support Of Respondent. Florence Dolan V. City Of Tigard, In The Supreme Court Of The United States, Andrea Ferster, Elizabeth A. Brabec, Glenn P. Sugamelli, Daniel L. Rabinowitz

Landscape Architecture & Regional Planning Faculty Publication Series

No abstract provided.


Polymer Science In Austria Ii: Universities In Vienna, Otto Vogl, Josef Schurz Sep 1993

Polymer Science In Austria Ii: Universities In Vienna, Otto Vogl, Josef Schurz

Emeritus Faculty Author Gallery

No abstract provided.


69. Nachruf Hermann F. Mark,, Otto Vogl Sep 1993

69. Nachruf Hermann F. Mark,, Otto Vogl

Emeritus Faculty Author Gallery

No abstract provided.


Polymer Science In Austria Iii, Universities In Linz, Innsbruck And Other Research Institute In Austria Including Industry, Otto Vogl, Josef Schurz Aug 1993

Polymer Science In Austria Iii, Universities In Linz, Innsbruck And Other Research Institute In Austria Including Industry, Otto Vogl, Josef Schurz

Emeritus Faculty Author Gallery

No abstract provided.


Polygon Explorer For Massachusetts Data: Initial Report, Center For Economic Development Jan 1993

Polygon Explorer For Massachusetts Data: Initial Report, Center For Economic Development

Center for Economic Development Technical Reports

Polygon Explorer is a program written for Macintosh computers that links data stored in standard spreadsheet formats with a geographic database. It differs from similar programs such as MapInfo and ArcView in that it provides a statistical visualization capability in the form of bar charts, histograms, scatterplots, and other views, and further these views are linked to one another so that any action in one view results highlighting in other views.

Polygon Explorer was initially developed with the support of funding from the Massachusetts Agricultural Experiment Station, and parts of a donation form the Environmental Systems Research Institute and a …


Connecticut River 2020 Project: Cost And Economic Impact Analysis, Center For Economic Development Jan 1993

Connecticut River 2020 Project: Cost And Economic Impact Analysis, Center For Economic Development

Center for Economic Development Technical Reports

This project addresses the following issues:

1) Analysis of the cost of abating water pollution sources contaminating the Lower Connecticut River for the communities of Agawam, Chicopee, Holyoke, Ludlow, South Hadley, Springfield, and West Springfield.

2) Analysis of the impact of water pollution abatement measures on the economy of Hamden and Hampshire Counties.

3) Analysis of the impact of additional economic development on Hamden and Hampshire Counties resulting from an improved river resource.

4) Assessment and analysis of increased recreational activities resulting from a cleaner river resource.

The research was conducted by the Center for Economic Development at the University …


Greenways As Vehicles For Social Expression, Center For Economic Development Jan 1993

Greenways As Vehicles For Social Expression, Center For Economic Development

Center for Economic Development Technical Reports

Traditionally, the recognized functions of greenways include water resource protection and pollution abatement, riparian habitat enhancement and biodiversity, flood hazard reduction, recreation, environmental education, noise attenuation, microclimate enhancement (cooling and pollution abatement), and the reduction of bank erosion and downstream sedimentation (Platt, 1992). Phil Lewis simply prefers to think of greenways as environmental corridors, which he dubs "E-ways," for the four main purposes of environment, ecology, education, and exercise (1990). In this paper a fifth "e" purpose of expression will be suggested.

As a beginning four different ways of promoting expression will be illustrated with examples. These means will include …


Mill Reuse Potential The Draper Mill Complex Hopedale, Massachusetts, Center For Economic Development Jan 1993

Mill Reuse Potential The Draper Mill Complex Hopedale, Massachusetts, Center For Economic Development

Center for Economic Development Technical Reports

The purpose of this study was to determine the reuse potential of the 1. 7 million square foot Draper Mill in Hopedale, Massachusetts. The study was undertaken at the request of the Hopedale Industrial Development Committee. Their goal was to develop a means of diversifying the community's tax base. When the Draper Mill was in full operation approximately sixty percent (60%) of the Town's taxes were paid by the Mill. Today, with the Mill empty, ninety percent (90%) of the Town's taxes come from residential uses. The Committee sought to develop a means to diversify Hopedale's tax base and thus …


Flow Injection Analysis Concepts And Misconceptions, Julian Tyson Jan 1993

Flow Injection Analysis Concepts And Misconceptions, Julian Tyson

Chemistry Department Faculty Publication Series

Aspects of definitions of analytical chemistry and flow injection analysis are discussed. The driving force in analytical research of cost-effectiveness is identified and the characteristics of flow injection examined. Basic concepts of fluid flow relevant to flow injection are explained and some common misconceptions concerning the magnitude of various phenomena examined. The implications fa the design of manifolds for high sensitivity are evaluated and some practical problems addressed. Novel features of FI, which take advantages of the kinetic nature of suitable processes, are identified and illustrated by some of Professor Ishibshi's work.


Determination Of Inorganic Arsenic And Its Organic Metabolites In Urine By Flow Injection Hydride Generation Atomic Absorption Spectrometry, Julian Tyson, C P. Hanna, S Mcintosh Jan 1993

Determination Of Inorganic Arsenic And Its Organic Metabolites In Urine By Flow Injection Hydride Generation Atomic Absorption Spectrometry, Julian Tyson, C P. Hanna, S Mcintosh

Chemistry Department Faculty Publication Series

No abstract provided.


Determination Of Total Mercury In Waters And Urine By Flow Injection Atomic Absorption Spectrometry Procedures Involving On- And Off-Line Oxidation Of Organomercury Species, Julian Tyson, C P. Hanna, S Mcintosh Jan 1993

Determination Of Total Mercury In Waters And Urine By Flow Injection Atomic Absorption Spectrometry Procedures Involving On- And Off-Line Oxidation Of Organomercury Species, Julian Tyson, C P. Hanna, S Mcintosh

Chemistry Department Faculty Publication Series

No abstract provided.


Calibration Of The Drying And Pyrolysis Temperatures For Graphite Furnace Atomic Absorption Spectrometry By Direct Observation Of The Melting Of Compounds, Julian Tyson, R M. Larue Jan 1993

Calibration Of The Drying And Pyrolysis Temperatures For Graphite Furnace Atomic Absorption Spectrometry By Direct Observation Of The Melting Of Compounds, Julian Tyson, R M. Larue

Chemistry Department Faculty Publication Series

No abstract provided.


Flow Injection Systems For Directly Coupling On-Line Digestions With Analytical Atomic Spectrometry Part 2. Reactions In A Microwave Field, Julian Tyson, Thomas J. Gluodenis Jr. Jan 1993

Flow Injection Systems For Directly Coupling On-Line Digestions With Analytical Atomic Spectrometry Part 2. Reactions In A Microwave Field, Julian Tyson, Thomas J. Gluodenis Jr.

Chemistry Department Faculty Publication Series

A flow injection system incorporating a stopped-flow microwave-heated reactor was constructed for the preparation of solutions for subsequent analysis by atomic spectrometric techniques. Slurry samples were injected into the manifold and transported into a glass reactor mounted inside a microwave oven. Nitric acid was flushed into the reactor, which was then sealed and the contents were heated by an appropriate microwave programme so that the pressure was held at 400 Ib in-* for 5 min. During this period the presssure was continuously monitored. After cooling, the reactor was vented and the contents were flushed out into a calibrated flask and …


Examination Of Separation Efficiencies Of Mercury Vapour For Different Gas-Liquid Separators In Flow Injection Cold Vapour Atomic Absorption Spectrometry With Amalgam Preconcentration, C. P. Hanna, P. E. Haigh, Julian Tyson, S. Mcintosh Jan 1993

Examination Of Separation Efficiencies Of Mercury Vapour For Different Gas-Liquid Separators In Flow Injection Cold Vapour Atomic Absorption Spectrometry With Amalgam Preconcentration, C. P. Hanna, P. E. Haigh, Julian Tyson, S. Mcintosh

Chemistry Department Faculty Publication Series

No abstract provided.


Permeation Tubes For Calibration In Flow Injection Analysis, Stuart J. Chalk, Julian Tyson, Don C. Olson Jan 1993

Permeation Tubes For Calibration In Flow Injection Analysis, Stuart J. Chalk, Julian Tyson, Don C. Olson

Chemistry Department Faculty Publication Series

No abstract provided.


An Experiment Using Time-Based Detection In Flow Injection Analysis, Mary K. Carroll, Julian Tyson Jan 1993

An Experiment Using Time-Based Detection In Flow Injection Analysis, Mary K. Carroll, Julian Tyson

Chemistry Department Faculty Publication Series

We present a laboratory experiment, suitable for implementation in analytical chemistry courses at the undergraduate level, that demonstrates the utility of time-based measurements with doublet peaks in flow injection analysis. The measurements are taken with an instrument that incorporates a simple solid-state detector, which has as its source a light-emitting diode (LED) and as its detecting element a photodiode (PD). The system studied here is a simple acid-base titration. The experiment could be adapted to any number of chemical reactions that result in a product that absorbs light of the LED wavelength significantly.


Chiral Symmetry And Electroweak Pi,K, N Processes, Br Holstein Jan 1993

Chiral Symmetry And Electroweak Pi,K, N Processes, Br Holstein

Physics Department Faculty Publication Series

Recently the development of chiral perturbation theory has allowed the generation of rigorous low-energy theorems for various hadronic processes based only on the chiral invariance of the underlying QCD Lagrangian. Herein we examine the experimental implications of chiral symmetry in the regime of electroweak Goldstone boson interactions. Contribution to BNL Hadronic Beam Physics Workshop.


Anatomy Of A Weak Matrix Element, Jf Donoghue, Eugene Golowich Jan 1993

Anatomy Of A Weak Matrix Element, Jf Donoghue, Eugene Golowich

Physics Department Faculty Publication Series

Although the weak nonleptonic amplitudes of the Standard Model are notoriously difficult to calculate, we have produced a modified weak matrix element which can be analyzed using reliable methods. This hypothetical nonleptonic matrix element is expressible in terms of the isovector and axialvector spectral functions v(s) and A(s), which can be determined in terms of data from tau lepton decay and e+e− annihilation. Chiral symmetry and the operator product expansion are used to constrain the spectral functions respectively in the low energy limits. The magnitude of the matrix element thus determined is compared with its “vacuum saturation” estimate, and in …


Photon-Photon Scattering, Pion Polarizability, And Chiral-Symmetry, Jf Donoghue, Br Holstein Jan 1993

Photon-Photon Scattering, Pion Polarizability, And Chiral-Symmetry, Jf Donoghue, Br Holstein

Physics Department Faculty Publication Series

Recent attempts to detect the pion polarizability via analysis of γγ→ππ measurements are examined. The connection between calculations based on dispersion relations and on chiral perturbation theory is established by matching the low-energy chiral amplitude with that given by a full dispersive treatment. Using the values for the polarizability required by chiral symmetry, predicted and experimental cross sections are shown to be in agreement.


4 Co Outflows And Dense Gas In The Dark Cloud Complex Near Ic5146, Kazuhito Dobashi, Toshikazu Onishi, Takahiro Iwata, Tomoo Nagahama, Nimesh Patel, Ronald L. Snell, Yasuo Fukui Jan 1993

4 Co Outflows And Dense Gas In The Dark Cloud Complex Near Ic5146, Kazuhito Dobashi, Toshikazu Onishi, Takahiro Iwata, Tomoo Nagahama, Nimesh Patel, Ronald L. Snell, Yasuo Fukui

Astronomy Department Faculty Publication Series

No abstract provided.


Cosmological Multi-Black-Hole Solutions, David Kastor, Jennie Traschen Jan 1993

Cosmological Multi-Black-Hole Solutions, David Kastor, Jennie Traschen

Physics Department Faculty Publication Series

We present simple, analytic solutions to the Einstein-Maxwell equation, which describe an arbitrary number of charged black holes in a spacetime with a positive cosmological constant Λ. In the limit Λ=0, these solutions reduce to the well-known Majumdar-Papapetrou (MP) solutions. Like the MP solutions, each black hole in a Λ>0 solution has charge Q equal to its mass M, up to a possible overall sign. Unlike the Λ=0 limit, however, solutions with Λ>0 are highly dynamical. The black holes move with respect to one another, following natural trajectories in the background de Sitter spacetime. Black holes moving apart …