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Model For Coal-Fired Reactors, Philip J. Smith, Thomas H. Fletcher, L. Douglas Smoot Jan 1981

Model For Coal-Fired Reactors, Philip J. Smith, Thomas H. Fletcher, L. Douglas Smoot

Faculty Publications

An axisymmetric, elliptic model has been developed for analysis of confined, turbulent coal-laden diffusion flames. The scheme is Eulerian for gases and Lagrangian for particles. The approach emphasizes the turbulent fluid mechanics of the mixing-limited gas phase reaction processes. The two-equation (k-─ e) turbulence model is used for closure. Particle drag and turbulent particle diffusion are also modeled. Gaseous combustion is modeled with a probability density function for the mixture fraction. Fluctuations in mixing of inlet streams and coal off-gas are considered. Coal pyrolysis and oxidation reaction processes are assumed to be slow with respect to the turbulent time scale. …

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Diffusion, Reinforcement, Geopolitics, And The Spread Of War, Benjamin A. Most, Harvey Starr Dec 1980

Diffusion, Reinforcement, Geopolitics, And The Spread Of War, Benjamin A. Most, Harvey Starr

Faculty Publications

The discussion reports the results of an examination of the possible diffusion of new war participations during the 1946-65 era. A theoretical argument is developed to yield more precise expectations about when, where, why, and how diffusion processs might operate. Four diffusion-related processes (positive spatial diffusion, positive reinforcement, negative spatial diffusion, and negative reinforcement) are discussed and analyzed. A series of simple turnover tables and a focus on nations' borders are used to go beyond the authors' previous stochastic modeling efforts. The results provide strong evidence that is consistent with both the authors' theoretical argument and the general war diffusion …

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Second Annual Report Of The Independent Evaluation Of The California Master Plan For Special Education Volume 2, Patricia Craig Apr 1980

Second Annual Report Of The Independent Evaluation Of The California Master Plan For Special Education Volume 2, Patricia Craig

Faculty Publications

This volume of the Second Annual Report on the California Master Plan for Special Education contains supporting technical information for the findings reported in Volume I. In the first section of this appendix, the method used to select the 25 sample areas is described. The second section details the methodology used for selecting teachers and parents for the questionnaire survey and presents response rates by area for each group surveyed. The third section explains the methodology used to develop the indices of knowledge, satisfaction, and skill. The fourth section des­cribes the procedures used for the follow-up of survey activities, presents …

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Seminormal Surfaces, William A. Adkins Jan 1980

Seminormal Surfaces, William A. Adkins

Faculty Publications

No abstract provided.

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On Hartfiel And Maxson's Definition Of Connected Sets Of A Matroid, James G. Oxley Jan 1980

On Hartfiel And Maxson's Definition Of Connected Sets Of A Matroid, James G. Oxley

Faculty Publications

In a loopless matroid a non-empty set is connected in the sense of Hartfiel and Maxson if and only if it spans a non-separable flat. © 1980.

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Several Identities For The Characteristic Polynomial Of A Combinatorial Geometry, Tom Brylawski, James Oxley Jan 1980

Several Identities For The Characteristic Polynomial Of A Combinatorial Geometry, Tom Brylawski, James Oxley

Faculty Publications

In this paper we explore a research problem of Greene: to find inequalities for the Möbius function which become equalities in the presence of modularity. We replace these inequalities with identities and give combinatorial interpretations for the difference. © 1980.

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Federal Protection Of Unique Environmental Interests: Endangered And Threatened Species, Ronald H. Rosenberg Jan 1980

Federal Protection Of Unique Environmental Interests: Endangered And Threatened Species, Ronald H. Rosenberg

Faculty Publications

Endangered species protection has long been favored by many Americans, who watched regretfully as the numbers of American eagles, buffaloes and other species dwindled toward extinction. Only recently, however, has species protection become a matter of public controversy, subsumed in the more general "development v. environment" debate. In this Article, Professor Rosenberg surveys the federal government's role in species protection, with a special focus on the Endangered Species Act of 1973. Prompted by the much-publicized Supreme Court decision in the "snail darter case"--TVA v. Hill-Congress extensively amended the Act in 1978. After a detailed analysis of these amendments, Professor Rosenberg …

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An Octic Reciprocity Law Of Scholz Type, Duncan A. Buell, Kenneth S. Williams Dec 1979

An Octic Reciprocity Law Of Scholz Type, Duncan A. Buell, Kenneth S. Williams

Faculty Publications

No abstract provided.

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Nonenzymatic Glucosylation Of Rat Albumin: Studies In Vitro And In Vivo, James F. Day, Robert W. Thornburg, Suzanne R. Thorpe, John W. Baynes Oct 1979

Nonenzymatic Glucosylation Of Rat Albumin: Studies In Vitro And In Vivo, James F. Day, Robert W. Thornburg, Suzanne R. Thorpe, John W. Baynes

Faculty Publications

Incubation of rat serum with D-glucose in vitro resulted in nonenzymatic glucosylation of serum proteins. Analysis of freshly isolated rat albumin by ion exchange chromatography indicated that the glucosylated albumin accounts for 6.7.+-. 0.9% of total albumin in normal rat serum. Glucosylation of rat albumin in vitro was 1st order with respect to glucose and albumin concentrations and occurs primarily (> 90%) at intrachain lysine residues. Kinetic analysis and inhibition of glucosylation by aspirin suggest that 1 reactive lysine residue is the primary site of glucosylation. Less than 5% of the radioactivity from glucosyl-albumin was released as glucose or mannose …

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The Burger Court, 1969-1979: Continuity And Contras, William F. Swindler Oct 1979

The Burger Court, 1969-1979: Continuity And Contras, William F. Swindler

Faculty Publications

No abstract provided.

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Economic Issues Of Groundwater Management, B. Gardner Delworth Sep 1979

Economic Issues Of Groundwater Management, B. Gardner Delworth

Faculty Publications

This is a coaceptual rather than an empirical paper with the primary focus on raising a set of economic issues faced by any authority charged with managing a groundwater aquifer. I will utilize the technique of making simplifying, albeit unrealistic, assumptions in order to establish easily and clearly the relevant economic principles. Some of the assumptions will be relaxed later to achieve greater realism. It is assumed that the hydrologic dimensions of the groundwater system are known and that the management authority has the power to enforce whatever rules it deems appropriate. There are a host of problems associated with …

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Spin-Glass-Like Behavior In Very Dilute Pdfe At Very Low Temperatures, Richard A. Webb, G. W. Crabtree, J. J. Vuillemin Sep 1979

Spin-Glass-Like Behavior In Very Dilute Pdfe At Very Low Temperatures, Richard A. Webb, G. W. Crabtree, J. J. Vuillemin

Faculty Publications

Measurements of the electrical resistivity of palladium, residual resistivity ratio ∼22 500, containing 1.7 ppm of Fe have been made from 5.5 K to 1.8 mK. 15 Hz ac susceptibility measurements from 1 K to 1.8 mK together with the resistivity data suggest that a transition into a spin-glass state occurs near 7 mK.

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Enhanced Nonenzymatic Glucosylation Of Human Serum Albumin In Diabetes Mellitus, C. Earl Guthrow, Mary Ann Morris, James F. Day, Suzanne R. Thorpe, John W. Baynes Sep 1979

Enhanced Nonenzymatic Glucosylation Of Human Serum Albumin In Diabetes Mellitus, C. Earl Guthrow, Mary Ann Morris, James F. Day, Suzanne R. Thorpe, John W. Baynes

Faculty Publications

Use of an ion exchange chromatographic method and a colorimetric method with thiobarbituric acid showed that levels of nonenzymatically glucosylated serum albumin were increased in patients with poorly controlled diabetes mellitus compared to controls. The two methods correlated well (r = 0.99) and clearly discriminated between normal and poorly controlled diabetic populations. The levels of glycosylated hemoglobin were also measured in both populations. Several patients apparently in good control based on glycosylated hemoglobin measurements were found to have increased levels of glycosylated albumin. Because albumin has a shorter circulating half-life than does the human erythrocyte, the plasma concentration of glucosylated …

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Heating-Effect Minimization In Dye Lasers, Kenneth Lee Matheson, James M. Thorne Aug 1979

Heating-Effect Minimization In Dye Lasers, Kenneth Lee Matheson, James M. Thorne

Faculty Publications

Optical pumping of dye lasers deposits heat nonuniformly in the active medium. Because the refractive index of a liquid or gas is a function of temperature, gradients are created which refract the laser beam. This effect is sometimes serious enough to quench laser action. In this paper, we evaluate the effects caused by optical pumping with a coaxial flashlamp and suggest ultraviolet absorbers and wavelength shifters as materials for minimizing the problem

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Nonenzymatically Glucosylated Albumin: In Vitro Preparation And Isolation From Normal Human Serum, James F. Day, Suzanne R. Thorpe, John W. Baynes Feb 1979

Nonenzymatically Glucosylated Albumin: In Vitro Preparation And Isolation From Normal Human Serum, James F. Day, Suzanne R. Thorpe, John W. Baynes

Faculty Publications

Incubation of human serum with D-[6-3H]glucose resulted in the gradual accumulation of radioactivity in acid-precipitable material. Upon chromatography on Sephadex G-200, radioactivity was found associated with each of the major molecular weight classes of serum protein. Purified human serum albumin was also glucosylated in vitro upon exposure to D-[6-3H]glucose in phosphate-buffered saline. The glucosylated and unmodified albumins were separated by ion exchange chromatography. The physiological significance of these observations in vitro was confirmed by the isolation and quantitation of glucosylated albumin from normal human serum. Glucosylated albumin represents approximately 6 to 15% of total serum albumin in normal adults. The …

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On A Theorem Of Murasug, C. Gordon, R. A. Litherland Jan 1979

On A Theorem Of Murasug, C. Gordon, R. A. Litherland

Faculty Publications

Let l=k1⋃k2be a 2-component link in S3with k2unknotted. The 2-fold cover of S3branched over k2is again S8; let k1(2) be the inverse image of k1and suppose that k1(2) is connected. How are the signatures σ(k1), σ(K1)(2) of the knots k1and K1(2)related? This question was considered (from a slightly different point of view) by Murasugi, who gave the following answer [Topology, 9 (1970), 283-298]. © 1979, University of California, Berkeley. All Rights Reserved.

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On Cographic Regular Matroids, James G. Oxley Jan 1979

On Cographic Regular Matroids, James G. Oxley

Faculty Publications

No abstract provided.

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On A Packing Problem For Infinite Graphs And Independence Spaces, James G. Oxley Jan 1979

On A Packing Problem For Infinite Graphs And Independence Spaces, James G. Oxley

Faculty Publications

In this paper several infinite extensions of the well-known results for packing bases in finite matroids are considered. A counterexample is given to a conjecture of Nash-Williams on edge-disjoint spanning trees of countable graphs, and a sufficient condition is proved for the packing problem in independence spaces over a countably infinite set. © 1979.

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Chemical Vapor Deposited Amorphous Silicon For Use In Photothermal Conversion, David D. Allred, D. C. Booth, M. Janai, G. Weiser, B. O. Seraphin Nov 1978

Chemical Vapor Deposited Amorphous Silicon For Use In Photothermal Conversion, David D. Allred, D. C. Booth, M. Janai, G. Weiser, B. O. Seraphin

Faculty Publications

Efficient photothermal conversion requires surfaces of high solar absorptance and low thermal emittance. This can be accomplished by the tandem action of a good infrared reflector overlaid by a film of sufficient solar absorptance that is transparent in the infrared. Crystalline silicon is a suitable candidate for the absorber layer. Its indirect band gap, however, results in a shallow absorption edge that extends to far into the visible. In contrast, the absorption edge of amorphous silicon is steeper and located farther into the infrared, resulting in a larger solar absorptance. We report on the fabrication of amorphous silicon absorbers by …

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Chemical Vapor Deposited Molybdenum Films For Use In Photothermal Conversion, David D. Allred, G. E. Carver, B. O. Seraphin Nov 1978

Chemical Vapor Deposited Molybdenum Films For Use In Photothermal Conversion, David D. Allred, G. E. Carver, B. O. Seraphin

Faculty Publications

High infrared reflectance, coupled with higher solar absorptance, is required for efficient photothermal conversion. Converters can be fabricated by depositing an absorber on a highly reflecting metal. The absorber functions in the visible, yet becomes transparent in the near infrared, allowing the metal to suppress the thermal emittance. Economic considerations demand the use of thin films, rather than bulk materials. The thin film reflector must be capable of withstanding high temperatures of operation. Compatibility of the reflector with the substrate below, and the absorber above, is required for long-time service. Highly reflective silver films suffer reflectance losses by agglomeration, and …

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An Emulsion Dye Laser, Kenneth Lee Matheson, James M. Thorne Nov 1978

An Emulsion Dye Laser, Kenneth Lee Matheson, James M. Thorne

Faculty Publications

A laser dye which is insoluble in water has been dissolved in hexane and emulsified in a water matrix. When pumped with a nitrogen laser, this mixture was observed to lase. The emulsion is superior to a simple hexane solution because the excellent thermo-optical properties of the water matrix help prevent refractive-index gradients from degrading laser performance. This is a useful characteristic for flash-pumped dye lasers, laser-pumped dye lasers, and liquid filters. Another type of solvent system, a critical solution, is also discussed. For certain dyes, a critical solution has even better thermo-optical properties because of its ability to absorb …

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[3H]‑Raffinose, A Novel Radioactive Label For Determining Organ Sites Of Catabolism Of Proteins In The Circulation, Jonathon Van Zile, Lee A. Henderson, John W. Baynes, Suzanne R. Thorpe Sep 1978

[3H]‑Raffinose, A Novel Radioactive Label For Determining Organ Sites Of Catabolism Of Proteins In The Circulation, Jonathon Van Zile, Lee A. Henderson, John W. Baynes, Suzanne R. Thorpe

Faculty Publications

The primary tissue sites of catabolism of plasma proteins with long circulating half-lives are unknown. It has been difficult to identify these sites because plasma proteins are delivered to tissues at relatively slow rates but are rapidly degraded intracellularly within lysosomes. Therefore, a tracer attached to protein is lost from the site of uptake before an amount sufficient for quantitation can accumulate. We hypothesized that sucrose (Glupal-2 /3Fruf) would be a useful label to circumvent this difficulty because of the stability of sucrose in lysosomes; and thus, sucrose should remain in tissue long after the protein to which it was …

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Bayes Estimation Of Reliability For Mixtures Of Life Distributions, William J. Padgett, Chris P. Tsokos Jun 1978

Bayes Estimation Of Reliability For Mixtures Of Life Distributions, William J. Padgett, Chris P. Tsokos

Faculty Publications

No abstract provided.

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Maximal Residue Difference Sets Modulo P, Duncan A. Buell, Kenneth S. Williams May 1978

Maximal Residue Difference Sets Modulo P, Duncan A. Buell, Kenneth S. Williams

Faculty Publications

Let p ≡ 1 (mod 4) be a prime. A residue difference set modulo p is a set S = {ai} of integers ai such that (ai/p) = +1 and ((ai - aj)/p) = +1 for all i and j with i ≠ j, where (n/p) is the Legendre symbol modulo p. Let mp be the cardinality of a maximal such set S. The authors estimate the size of mp.

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Pre-Retirement Qualified Plan Pay-Outs Under Erisa, Harry V. Lamon, John W. Lee Apr 1978

Pre-Retirement Qualified Plan Pay-Outs Under Erisa, Harry V. Lamon, John W. Lee

Faculty Publications

No abstract provided.

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Tip-Angle-Dependent Magnetic Relaxation In Superfluid 3he, Richard A. Webb Mar 1978

Tip-Angle-Dependent Magnetic Relaxation In Superfluid 3he, Richard A. Webb

Faculty Publications

Using a pulsed superconducting-quantum-interference-device (SQUID) NMR technique, relaxation of the longitudinal magnetization in superfluid 3He has been measured in magnetic fields of 31, 102, 180, and 306 Oe in the pressure range 16-26 bar. It is observed that in both superfluid phases there is a temperature-dependent, well-defined spin-tipping angle, θc, for which the relaxation of the magnetization changes from an exponential to a nonexponential behavior.

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The Stephen F. Austin Traveling Science Show, James C. Dennis Jan 1978

The Stephen F. Austin Traveling Science Show, James C. Dennis

Faculty Publications

No abstract provided.

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Compact Compacts: Models: A Simple (And Tasty) Model For Electron Clouds, John T. Moore Jan 1978

Compact Compacts: Models: A Simple (And Tasty) Model For Electron Clouds, John T. Moore

Faculty Publications

A simple (and tasty) model for demonstrating the electron cloud concept; and a classroom visualization of ethylene II and II* molecular orbitals.

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Probability Of Attack By Southern Pine Beetle In Relation To Distance From An Attractive Host Tree, Paul C. Johnson, Jack E. Coster Jan 1978

Probability Of Attack By Southern Pine Beetle In Relation To Distance From An Attractive Host Tree, Paul C. Johnson, Jack E. Coster

Faculty Publications

The pattern of southern pine beetle (SPB) attack was examined in two infestations in East Texas to determine the probability of host tree attack (PA) as a function of distance (X) from a recently attacked tree (pheromone source). In an infestation having a low rate of newly attacked trees per day and only a few pheromone sources occurring simultaneously, distance was a critical factor in determining PA. The probability decreased as In X, and was described by the regression model, PA=0.06757- 0.2583 In X. Distance, however, was less critical in a larger infestation which had multiple pheromone sources occurring simultaneously …

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Products Liability--Applicability Of Comparative Negligence, David A. Fischer Jan 1978

Products Liability--Applicability Of Comparative Negligence, David A. Fischer

Faculty Publications

Products liability and comparative negligence are two very rapidly developing fields of tort law. In recent years, the vast majority of courts have adopted strict liability for harm caused by defective products. At the same time, the doctrine of comparative negligence has changed almost overnight from a doctrine that had been accepted by only a handful of jurisdictions into what is now the majority approach in this country.

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