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Agenda: Uncovering The Hidden Resource: Groundwater Law, Hydrology And Policy In The 1990s, University Of Colorado Boulder. Natural Resources Law Center, Rocky Mountain Ground-Water Conference (1992), Colorado Ground-Water Association

Uncovering the Hidden Resource: Groundwater Law, Hydrology, and Policy in the 1990s (Summer Conference, June 15-17)

Sponsored by Natural Resources Law Center, University of Colorado School of Law and the Rocky Mountain Ground-Water Conference, organized by the Colorado Ground-Water Association.

Faculty for the conference included University of Colorado School of Law professor Lawrence J. MacDonnell.

Nearly half the people in the United States rely on groundwater as their primary water source. As demands for groundwater grow, it becomes increasingly important for lawyer and technical professionals to understand the legal and hydrologic issues arising in groundwater development, use, and protection. These issues will be the focus of the Center's thirteenth annual summer program, June 15-17, 1992.

This …

Ground-Water Modeling Issues In Ground-Water Development: Types Of Models/Choosing The Right Model, Paul K.M. Van Der Heijde

Uncovering the Hidden Resource: Groundwater Law, Hydrology, and Policy in the 1990s (Summer Conference, June 15-17)

26 pages.

Contains 3 pages of references.

Fundamental Groundwater Hydrology And Well Hydraulics, E. D. Gutentag

Uncovering the Hidden Resource: Groundwater Law, Hydrology, and Policy in the 1990s (Summer Conference, June 15-17)

23 pages (includes illustrations and maps).

Self Organization And A Dynamical Transition In Traffic Flow Models, Alan Middleton, Ofer Biham, Dov Levine

Physics - All Scholarship

A simple model that describes traffic flow in two dimensions is studied. A sharp {\it jamming transition } is found that separates between the low density dynamical phase in which all cars move at maximal speed and the high density jammed phase in which they are all stuck. Self organization effects in both phases are studied and discussed.

Ua66/8/3 Annual Report, Wku Geography & Geology

WKU Administration Documents

Annual report created by and about WKU Geography & Geology.

Groundwater Flow In A Compressible Unconfined Aquifer With Uniform Circular Recharge, Vitaly A. Zlotnik, Glenn Ledder

Department of Earth and Atmospheric Sciences: Faculty Publications

The distributions of the hydraulic head and velocity components of the transient groundwater flow in an unconfined compressible aquifer of finite thickness under constant uniform circular recharge are obtained from the linearized mathematical model by the use of integral transforms. The result generalizes Dagan’s (1967) solution which was derived by neglecting the compressibility. By treating the compressibility parameter as a small value, the formula for the hydraulic head is analyzed by asymptotic methods, resulting in approximations to the exact solutions for the head and velocities on small and large time scales. The hydraulic head and flow velocities can be accurately …

Algorithms For Structural Schema Integration, James Geller, Ashish Mehra, Yehoshua Perl, Erich Neuhold, Amit P. Sheth

Kno.e.sis Publications

Current view and schema integration methodologies are driven by semantic considerations, and allow integration of objects only if that is valid from semantic and structural viewpoints. We had introduced a new integration technique called structural integration. It permits integration of objects that have structural similarities, even if they differ semantically. This technique uses the object-oriented Dual Model which separates the representation of structure and semantics.

In this paper we introduce algorithms for structural integration. We apply these algorithms to integrate two views of a large university database schema which had significant structural similarities but differed semantically.

Arkansas Rice Research Studies 1991, B. R. Wells

Arkansas Agricultural Experiment Station Research Series

The research reports in this publication represent one year of results; therefore, these results should not be used as a basis for longterm recommendations. Several research reports in this publication dealing with soil fertility also appear in Arkansas Soil Fertility Studies 1991, Arkansas Agricultural Experiment Station Research Series 421. This duplication is the result of the overlap in research coverage between the two series and our effort to inform Arkansas rice producers of all the research being conducted with funds from the rice check-off.

Sequential And Parallel Discrete Event Simulation On Computer Communication Networks, Tao Zhou

Masters Theses

This thesis presents the discrete event simulation technique on the network design, focusing on the methodology, modeling and implementation. The developed technique is suitable for the analysis of any store-and-forward computer communication networks with any level of complexity. The proposed generic simulation model can be used to test the architectures and protocols of existing networks and networks being designed. In implementation of the sequential discrete event simulation, an object-oriented programming strategy is applied to the network simulation using the C++ language. The parallel discrete event simulation is introduced to solve the problem of long time execution of the sequential simulation …

Limaçon Of Pascal Locus Of The Complex Refractive Indices Of Interfaces With Maximally Flat Reflectance-Versus-Angle Curves For Incident Unpolarized Light, R. M.A. Azzam

Electrical Engineering Faculty Publications

For an interface between two isotropic media the power reflectance R_v (ø) is an even function, R_v (ø) = R_v (--), of the angle of incidence ø; hence all the odd derivatives, R_v⁽ⁿ⁾ = dⁿ R_v /døⁿ (n odd), are identically 0 at ø = 0, independent of the incident polarization v. When the incident light is unpolarized (v = u), the second derivative, R_u⁽²⁾, is also 0 at ø = 0, so that the flatness of the R_u -versus-ø curve …

The Use Of Henry's Law Constants In The Determination Of Factors That Influence Voc Concentration In Aqueous And Gaseous Phases In Wastewater Treatment Plant, Hui-Zhi Yu

Theses

This study focuses on the determination and comparison of Henry's law constant of eight selected volatile organic compounds in the wastewater of Linden Roselle Sewerage Authority (LRSA) wastewater treatment plant. The factors that influence the vapor-aqueous equilibrium were studied by calculating the Henry's law constants of the different species determined in the gas phase before and after the spiking of different aqueous media. Both centrifuged and uncentrifuged wastewater samples were studied, and compared to distilled water.

For wastewater sample with no suspended particles, the amount of organics in wastewater appears to influence the Henry's law constant for compounds with low …

Irreversible Immobilization Of Heavy Metal, Hyoung-Seog Ko

Theses

Heavy metals are contaminants of both solid and liquid wastes. For example, the ash produced from the incineration of domestic or industrial wastes often contains substantial concentration of lead, mercury, cadmium and other heavy metals that make it a hazardous waste. These heavy metals in wastes are hazardous because they are mobile. Immobilization of the metals is an effective method of rendering the metals harmless, provided that immobilization is irreversible. This study focused on the heavy metal immobilization potential associated with the activities of anaerobic bacteria known as the dissimilatory sulfate reducers (Postgate, 1984). The sulfate-reducing bacteria produce sulfide and …

Design Of Stable Di And Tetraradical Nitroxides As Magnetic Resonance Imaging Agents, Radha V. Iyer

Theses

Several nitroxides have been prepared in the Biotechnology Laboratory at NJIT to study their image enhancement capability. These nitroxides contain different moieties within one molecule and their paramagnetism is found to be initially increasing proportionally to the number of their radical centers. It is found that the addition of nitroxides at very close distances causes interference and a reduction of intensity due to the interaction of the two paramagnetic centers with each other. Thus MRI contrast agents are not improved by simple addition of nitroxide centers to a given molecule and drug designers must pay special attention to intramolecular spacing. …

Measurement Of Vocs Pollution From Recycling Petroleum Contaminated Soils In Hot Mix Asphalt Concrete, Yaoqing Chen

Theses

The petroleum contaminated soils (PCSs) due to leaking underground storagetanks are required to be removed and isolated in a designated area for proper treatment. Recently, a technique of recycle has been developed to incorporate PCSs into hot mixing asphalt (HMA) as a partial substitute for stone aggregate; the mixture then was used for road paving.

This study focuses on the estimation of the emission of volatile organic compounds from the process of mixing asphalt with PCSs and the contamination of ground water by paving the asphalt mixture made with PCSs. Eleven volatile organic compounds and total non-methane organic compounds emitted …

Future Research Directions In Problem Solving Environments For Computational Science, Stratis Gallopoulos, Elias N. Houstis, John R. Rice

Department of Computer Science Technical Reports

No abstract provided.

Photochemistry Of Nitrous Acid And Nitrite Ion, Jane A. Johnson '92

Honors Projects

A study of the solution phase photochemistry of the nitrous acid/nitrite ion system in both water and non-aqueous solvents has been undertaken. Photolysis at 366nm of the aqueous system is known to form hydroxyl radical and nitric oxide. The relative contributions of the molecular and ionic forms to the photochemical production of radicals is unknown. Scavenging reactions of the hydroxyl radicals in aqueous and nonaqueous solution are used to determine the relative production of OH. formed by photolysis of HONO and N02-. Molecular nitrous acid is isolated from its conjugate base by extraction into benzene from water. The thermal decomposition …

Isolation Of Protein Synthesis Initiation Factors Using Volvox Carteri: A Clue To The Translational Control Of Cytodifferentiation, Claudia Hackethal

Honors Theses

Volvox carteri, a multicellular green algae, possesses two distinct cell types--the gonidia and somatic cells. This simple germ-soma dichotomy is ideal for the study of the control of cytodifferentiation. The control of cytodifferentiation in this organism has been identified as a posttranscriptional mechanism, which suggests translation. Initiation factors have been shown to play an important role in controlling translation in many other developmental systems. Therefore, study of the initiation factors in Volvox may shed light on a translational control mechanism. In order to study any modifications of these factors, they must be isolated, possibly by following an adapted wheat germ …

Computer Science Education At Wku, Malcolm Stallings

Mahurin Honors College Capstone Experience/Thesis Projects

No abstract provided.

The Palladium (Ii) –Catalyzed Homogeneous Oxidation Of 1-Hexene, Margarita Kirova

Masters Theses & Specialist Projects

The Palladium(II)-catalyzed homogeneous oxidation of 1-hexene in methanolic medium has been studied, copper(II) chloride being used as cocatalyst. Aspects of the kinetics, mechanism and product composition were investigated in several series of oxidations involving variation of hexene concentration, oxygen partial pressure, Cu(II): Pd(II) ratio and concentration and temperature. The progress of the reaction was studied in the course of periodic sampling runs. Reaction products were identified by gas chromatography, and verified by means of GC/mass spectrometry. The expected product of 1-hexene oxidation was 2-hexeanone: however, 3-hexanone occurs as a major coproduct, arising from concurrent Pd(II)-catalyzed isomerization of 1-hexene to 2-hexene. …

Review: 'Optical Fiber Communications' (2nd Edition), By Gerd Keiser, Bradley D. Duncan

Electro-Optics and Photonics Faculty Publications

If first impressions are worth anything (and they usually are), I would have to admit that my first impression of the second edition of Gerd Keiser's now popular text Optical Fiber Communications was quite good. My compliments are hereby extended to the publisher for choosing a rather handsome cover and dust jacket. It stands in strong contrast to the text's first edition, which still ranks as probably the ugliest book I own, with color choices ranging from dull cream and "baby" blue to pale pink! I am now happy to say that this older version has been discretely·retired to the …

Network Key Management In A Large Distributed Environment, J. J. Stapleton, D. C. St. Clair

Computer Science Technical Reports

The technique of using encryption for protecting information in a network environment involves managing encryption keys within that same network. In large distributed networks the goal of achieving a secure environment requires a secure method of performing network key management. Network security, system security, and application security by means of data encryption rely on encryption keys remaining secret.

Both international and domestic standards organizations such as the International Organization for Standardization (ISO), the American National Standards Institute (ANSI), and the National Institute of Standards and Technology (NIST) address the issues of encryption through various standards. However, these standards discuss methods …

An Embedded Ring Approach To The Vibrational Dynamics Of Disordered Two-Dimensional Materials, Timothy Edwin Doyle

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

A theoretical approach was developed to model the vibrational dynamics of amorphous, two-dimensional materials. The materials were modeled as continuous random networks (CRN's) comprising an assemblage of planar rings of diverse size. In-plane vibrational modes for symmetric 4-, 5-, 6-, 7-, and 8-membered rings were examined. Vibrational states of isolated rings were modified by coupling the rings to a continuous network to represent rings embedded in a CRN. An effective force constant was used to couple the ring vibrations to the network's collective motions. Potentials were approximated with the use of a central force model (bond-stretching force constant) and a …

Soil Heterogeneity And Its Exploitation By Plants, Robert B. Jackson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In this dissertation I first examine the ability of individual plants in the field to garner localized soil nutrients. I then measure actual soil variability around perennial plants and use various statistics to quantify the scale and degree of that variability.

Soil patches on opposite sides of Pseudoroegneria spicata tussocks were treated with distilled water or a nutrient solution containing N, P, or K in three field experiments. When P was augmented in the enriched soil patches, rates of P uptake increased significantly for roots from enriched patches compared with roots in control patches. Rates of ammonium and potassium uptake …

Inverse Problem In Porous Medium Using Homogenization, Helen Alkes

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The problem under consideration is that of obtaining a representation of the permeability of a porous medium which is heterogeneous and anisotropic from limited information. To solve this inverse problem we propose the use of two different pieces that work together. A simulated annealing algorithm is presented and coupled with an homogenization technique; together these solve the problem which was posed. Further, numerical simulation results are presented illustrating the use of the simulated annealing algorithm as well as a coupling with the homoginization technique. This study illustrates that the performance of the annealing algorithm is enhanced with usage of homogenization.

Program Abstracts, 104th Session, Iowa Academy Of Science, April 24-25, 1992, Iowa Academy Of Science

Iowa Academy of Science Documents

Presentation abstracts from the annual meeting of the Iowa Academy of Science

Anomalous Dipolar Flexoelectric Effect In A Nematic Main-Chain Polymer, Rolfe G. Petschek, Eugene M. Terentjev

Faculty Scholarship

An anomalously large flexoelectric effect is predicted in the nematic phase of thermotropic main-chain polymers, which have a defined orientation of subsequent monomers bonded on the chain. We identify two different ranges of order parameters. When the persistence length of the chain in the direction parallel to the order parameters is larger than a monomer length but not too long (small order parameter), the longitudinal flexoelectric coefficient f is proportional to this exponentially large persistence length, assuming that the polymers are many persistence lengths long. This result corresponds to the simple estimation that relates flexoelectric coefficients to the Frank elastic …

The Gamut: A Journal Of Ideas And Information, No. 35, Spring 1992, Cleveland State University

The Gamut Archives

CONTENTS OF ISSUE NO. 35, SPRING, 1992

Editorial

Louis T. Milic: IT’s the Thought That Counts, 3

Civil Rights

Jonathan L. Entin: Going Around and Coming Around in Prince Edward County, 5

An ironic twist in the long road to desegregation

Animal Rights

Pamela Harrison: Saving Dolphins, Not Eating Meat, 15

A moral basis for vegetarianism

Robert J. White: The Animal Rights Movement: A New Pseudo-Religion

Activists sabotage medical research

Ted Bartlett: Animals are Not People

Whose best interest is involved?

China

Peter Scheckner: American Movies in China, 30

E.T. and Crocodile Dundee in Tiananmen …

The Profit Motive: The Bane Of Mathematics Education, Neal Koblitz

Humanistic Mathematics Network Journal

No abstract provided.

Santa Clara Magazine, Volume 34 Number 3, Spring 1992, Santa Clara University

Santa Clara Magazine

12 - EAST L.A. STORY Jesuit-run Dolores Mission Alternative School is a last chance for East L.A.'s troubled teen-agers, many of whom are members of violent Latino gangs. By Rene Romo '86

20 - ONE IS TOO MANY TWO ARE NOT ENOUGH A personal account of one woman's struggle with alcohol addiction. By Lisa Agrimonti '87

24 - UP CLOSE: WITOLD KRASSOWSKI After five years in the Polish Underground Army during WW II, the founder of SCU's Sociology Department came to America and discovered teaching. His 40-year commitment to students has never waivered. By Christine Spielberger '69

28 - WORKING …

Scaling Dynamics Of Aerosol Coagulation, B. J. Olivier, C. M. Sorensen, Thomas W. Taylor

Physics Faculty Publications

A combination of static and quasielastic light scattering and the theory of scaling solutions to Smoluchowski's equation was used to determine the absolute coagulation rate K'0 and kernel homogeneity lambda of a coagulating liquid-drop aerosol. Droplet sizes ranged from 0.23 to 0.42-mu-m, implying Knudsen numbers in the range 0.26 and 0.14. The temporal evolution of the number concentration M0 and the modal radius r(M) of an assumed zeroth-order log-normal distribution showed near-power-law behavior similar to that predicted by the scaling theory. From the temporal scaling behavior of M0(t) and r(M)(t), the absolute coagulation rate was calculated. The coagulation rates from …