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UNT Research, Volume 16, 2006

UNT Research, Volume 16, 2006

Date: 2006
Creator: University of North Texas
Description: UNT Research magazine includes articles and notes about research at University of North Texas in various academic fields.
Contributing Partner: University Relations, Communications & Marketing department for UNT
Linear Response of Hamiltonian Chaotic Systems as a Function of the Number of Degrees of Freedom

Linear Response of Hamiltonian Chaotic Systems as a Function of the Number of Degrees of Freedom

Date: August 12, 1996
Creator: Bianucci, Marco; Mannella, Riccardo & Grigolini, Paolo
Description: This article discusses the linear response of Hamiltonian chaotic systems as a function of the number of degrees of freedom.
Contributing Partner: UNT College of Arts and Sciences
Thermodynamics, Kinetics, and Mechanism of (silox)3M(olefin) to (silox)3M(alkylidene) Rearrangements (silox = tBu3SiO; M = Nb, Ta)

Thermodynamics, Kinetics, and Mechanism of (silox)3M(olefin) to (silox)3M(alkylidene) Rearrangements (silox = tBu3SiO; M = Nb, Ta)

Date: March 10, 2005
Creator: Hirsekorn, Kurt F.; Veige, Adam S.; Marshak, Michael P.; Koldobskaya, Yelena; Wolczanski, Peter T.; Cundari, Thomas R., 1964- et al.
Description: Article discussing the thermodynamic, kinetic, and mechanism of (silox)3M(olefin) to (silox)3M(alkylidene) rearrangements (silox = tBu3SiO; M = Nb, Ta).
Contributing Partner: UNT College of Arts and Sciences
Thermodynamic Calculations Relating to Chloride Volatility Processing of Nuclear Fuels: [Part] 2. The Capacity of Chlorine for Transporting Plutonium Tetrachloride Vapor During Reaction of U3O8-PuO2 with Carbon Tetrachloride

Thermodynamic Calculations Relating to Chloride Volatility Processing of Nuclear Fuels: [Part] 2. The Capacity of Chlorine for Transporting Plutonium Tetrachloride Vapor During Reaction of U3O8-PuO2 with Carbon Tetrachloride

Date: October 1964
Creator: Gens, T. A.
Description: Report issued by the Oak Ridge National Laboratory discussing thermodynamic calculations of nuclear fuels. As stated in the introduction, "the equations developed in this report could be used to calculate the capacity of chlorine for transporting plutonium tetrachloride" (p. 2). This report includes tables, and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Electronic Distribution Functions and Thermodynamic Properties at High Temperatures

Electronic Distribution Functions and Thermodynamic Properties at High Temperatures

Date: May 1953
Creator: Brachman, Malcolm K. & Meyerott, Roland E.
Description: Report issued by the Argonne National Laboratory discussing the thermodynamics and electronic distribution of high temperatures. As stated in the introduction, "in the present paper, a model for computing is described which takes into account in detail the interactions between bound electrons and the average interaction of the bound electrons with the free ones" (p. 4). This report includes tables, and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Computational s-Block Thermochemistry with the Correlation Consistent Composite Approach

Computational s-Block Thermochemistry with the Correlation Consistent Composite Approach

Date: October 3, 2007
Creator: DeYonker, Nathan J.; Ho, Dustin S.; Wilson, Angela K. & Cundari, Thomas R., 1964-
Description: Article discussing research on computational s-block thermochemistry with the correlation consistent composite approach, which has been shown to accurately compute gas-phase enthalapies of formation for alkali and alkaline earth metal oxides and hydroxides.
Contributing Partner: UNT College of Arts and Sciences
Reversible Beta-Hydrogen Elimination of Three-Coordinate Iron(II) Alkyl Complexes: Mechanistic and Thermodynamic Studies

Reversible Beta-Hydrogen Elimination of Three-Coordinate Iron(II) Alkyl Complexes: Mechanistic and Thermodynamic Studies

Date: October 1, 2004
Creator: Vela, Javier; Vaddadi, Sridhar; Cundari, Thomas R., 1964-; Smith, Jeremy M.; Gregory, Elizabeth A.; Lachicotte, Rene J. et al.
Description: Article discussing mechanistic and thermodynamic studies and reversible beta-hydrogen elimination of three-coordinate iron(II) alkyl complexes.
Contributing Partner: UNT College of Arts and Sciences
Dynamic Approach to the Thermodynamics of Superdiffusion

Dynamic Approach to the Thermodynamics of Superdiffusion

Date: April 26, 1999
Creator: Buiatti, Marco, 1972-; Grigolini, Paolo & Montagnini, Anna
Description: This article discusses dynamic approach to the thermodynamics of superdiffusion.
Contributing Partner: UNT College of Arts and Sciences
Towards the thermodynamics of localization processes

Towards the thermodynamics of localization processes

Date: September 2000
Creator: Grigolini, Paolo; Pala, Marco G.; Palatella, Luigi & Roncaglia, Roberto
Description: In this article, the authors study the entropy time evolution of a quantum mechanical model, which is frequently used as a prototype for Anderson's localization.
Contributing Partner: UNT College of Arts and Sciences
Isentropic Compressibility of an Ideal Ternary Solution

Isentropic Compressibility of an Ideal Ternary Solution

Date: 1983
Creator: Acree, William E. (William Eugene)
Description: Article on isentropic compressibility of an ideal ternary solution.
Contributing Partner: UNT College of Arts and Sciences
Iron Oxide Reduction Equilibria: A Critique from the Standpoint of the Phase Rule and Thermodynamics

Iron Oxide Reduction Equilibria: A Critique from the Standpoint of the Phase Rule and Thermodynamics

Date: 1929
Creator: Ralston, Oliver C.
Description: Report issued by the Bureau of Mines over studies conducted on iron oxide reduction. As stated in the scope of bulletin, "this bulletin, therefore, presents the properties of the common oxides of iron, their combinations with each other, and the reduction-equilibrium diagrams by which the investigator passes from one to the next; the end point is not pure iron but the carburized iron of the blast furnace, cast iron" (p. 1-2). This report includes tables, and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Contributions to the Data on Theoretical Metallurgy: [Part] 15. A Reprint of Bulletins 383, 384, 393, and 406

Contributions to the Data on Theoretical Metallurgy: [Part] 15. A Reprint of Bulletins 383, 384, 393, and 406

Date: 1962
Creator: Kelley, K. K.
Description: Report issued by the Bureau of Mines containing a compilation of four previously printed Bulletins discussing thermodynamics and inorganic substances. The four reprints included are bulletins 383, 384, 393, and 406, and are each printed in full. This report includes tables.
Contributing Partner: UNT Libraries Government Documents Department
Contributions to the Data on Theoretical Metallurgy: [Part] 7. The Thermodynamic Properties of Sulphur and its Inorganic Compounds

Contributions to the Data on Theoretical Metallurgy: [Part] 7. The Thermodynamic Properties of Sulphur and its Inorganic Compounds

Date: 1937
Creator: Kelley, K. K.
Description: Report issued by the Bureau of Mines over studies on the thermodynamics of sulphur. As stated in the introduction, "the present bulletin has as its primary purpose the correlation of the thermodynamic properties of elementary sulphur and its inorganic compounds and the presentation, after careful consideration of all available information, of a self-consistent system of thermodynamic relationships for these substances" (p. 1). This report includes tables.
Contributing Partner: UNT Libraries Government Documents Department
On the Establishment of the Thermodynamic Scale of Temperature by Means of the Constant-Pressure Thermometer

On the Establishment of the Thermodynamic Scale of Temperature by Means of the Constant-Pressure Thermometer

Date: 1907
Creator: Buckingham, Edgar
Description: Report issued by the Bureau of Standards over two different types of gas thermometry, with its main focus on the constant-pressure thermometer. The thermodynamic scale of temperature is also discussed. This report includes tables, and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
The Steam-Turbine Expansion Line on the Mollier Diagram, and a Short Method of Finding the Reheat Factor

The Steam-Turbine Expansion Line on the Mollier Diagram, and a Short Method of Finding the Reheat Factor

Date: 1911
Creator: Buckingham, Edgar
Description: Report issued by the Bureau of Standards over the Mollier diagram. The steam-turbine expansion line on the diagram is discussed. This report includes tables, and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Thermodynamic Properties of Oxygen and Nitrogen

Thermodynamic Properties of Oxygen and Nitrogen

Date: 1928
Creator: Millar, Russell W. & Sullivan, John D.
Description: Report issued by the Bureau of Mines discussing the thermodynamics of oxygen and nitrogen. Properties of these elements and methods of estimating thermodynamic data are presented. This report includes tables.
Contributing Partner: UNT Libraries Government Documents Department
Thermodynamic Properties of Nonelectrolyte Solutes in Ternary Solvent Mixtures

Thermodynamic Properties of Nonelectrolyte Solutes in Ternary Solvent Mixtures

Date: August 1999
Creator: Deng, Tʻai-ho
Description: The purpose of this dissertation is to investigate the thermodynamic properties of nonelectrolyte solutes dissolved in ternary solvent mixtures, and to develop mathematical expressions for predicting and describing that behavior in the solvent mixtures. Thirty-four ternary solvent systems were studied containing either alcohol (1-propanol, 2-propanol, 1-butanol, and 2-butanol), alkane (cyclohexane, heptane, and 2,2,4-trimethylpentane) or alkoxyalcohol (2-ethoxyethanol and 2-butoxyethanol) cosolvents. Approximately 2500 experimental measurements were performed. Expressions were derived from the Combined Nearly Ideal Multiple Solvent (NIMS)/Redlich-Kister, the Combined Nearly Ideal Multiple Solvent (NIMS)/Bertrand, Acree and Burchfield (BAB) and the Modified Wilson models for predicting solute solubility in ternary solvent (or even higher multicomponent) mixtures based upon the model constants calculated from solubility data in sub-binary solvents. Average percent deviation between predicted and observed values were less than 2%, documenting that these models provide a fairly accurate description of the thermodynamic properties of nonelectrolyte solutions. Moreover, the models can be used for solubility prediction in solvent mixtures in order to find the optimum solvent composition for solubilization or desolubilization of a solute. From a computational standpoint, the Combined Nearly Ideal Multiple Solvent/Redlich-Kister equation is preferred because the needed model constants can be calculated with a simple linear regressional analysis. Model constants ...
Contributing Partner: UNT Libraries
Water heaters : inspection and preventive maintenance service.

Water heaters : inspection and preventive maintenance service.

Date: June 1947
Creator: United States. War Department.
Description: "This technical manual is a guide to first and second echelon maintenance of domestic hot-water supply systems." Discusses methods of training maintenance personnel, preventive maintenance for users, and inspections.
Contributing Partner: UNT Libraries Government Documents Department
A Practical Approach to Availability and Irreversibility

A Practical Approach to Availability and Irreversibility

Date: June 1963
Creator: Hoglund, Barton M.
Description: From Introduction: "The purpose of this paper is to shed additional light on the techniques of a Second Law Analysis. The stimulus for writing this paper came from questions asked and difficulties that occurred during lectures on the subject at the graduate level. This paper utilizes Keenan's basic approach but presents the material with emphasis upon a clear definition of the work associated with each subsystem in the process."
Contributing Partner: UNT Libraries Government Documents Department
Preliminary Analysis of an Innovative Rotary Displacer Stirling Engine

Preliminary Analysis of an Innovative Rotary Displacer Stirling Engine

Date: December 2015
Creator: Bagheri, AmirHossein
Description: Stirling engines are an external combustion heat engine that converts thermal energy into mechanical work that a closed cycle is run by cyclic compression and expansion of a work fluid (commonly air or Helium) in which, the working fluid interacts with a heat source and a heat sink and produces network. The engine is based on the Stirling cycle which is a subset of the Carnot cycle. The Stirling cycle has recently been receiving renewed interest due to some of its key inherent advantages. In particular, the ability to operate with any form of heat source (including external combustion, flue gases, alternative (biomass, solar, geothermal) energy) provides Stirling engines a great flexibility and potential benefits since it is convinced as engines running with external heat sources. However, several aspects of traditional Stirling engine configurations (namely, the Alpha, Beta, and Gamma), specifically complexity of design, high cost, and relatively low power to size and power to volume ratios, limited their widespread applications to date. This study focuses on an innovative Stirling engine configuration that features a rotary displacer (as opposed to common reciprocating displacers), and aims to utilize analytical and numerical analysis to gain insights on its operation parameters. The results ...
Contributing Partner: UNT Libraries
Thermochemistry Investigations Via the Correlation Consistent Composite Approach

Thermochemistry Investigations Via the Correlation Consistent Composite Approach

Date: December 2012
Creator: Jorgensen, Kameron R.
Description: Since the development of the correlation consistent composite approach (ccCA) in 2006, ccCA has been shown to be applicable across the periodic table, producing, on average, energetic properties (e.g., ionization potentials, electron affinities, enthalpies of formation, bond dissociation energies) within 1 kcal/mol for main group compounds. This dissertation utilizes ccCA in the investigation of several chemical systems including nitrogen-containing compounds, sulfur-containing compounds, and carbon dioxide complexes. The prediction and calculation of energetic properties (e.g., enthalpies of formation and interaction energies) of the chemical systems investigated within this dissertation has led to suggestions of novel insensitive highly energetic nitrogen-containing compounds, defined reaction mechanisms for sulfur compounds allowing for increased accuracy compared to experimental enthalpies of formation, and a quantitative structure activity relationship for altering the affinity of CO2 with substituted amine compounds. Additionally, a study is presented on the convergence of correlation energy and optimal domain criteria for local Møller–Plesset theory (LMP2).
Contributing Partner: UNT Libraries
Thermodynamic Properties of Halides

Thermodynamic Properties of Halides

Date: unknown
Creator: Pankratz, L. B.
Description: From Introduction: "This compilation is the second in a series revising and expanding Bureau of Mines Bulletin 605, "Thermodynamic Properties of 65 Elements-Their Oxides, Halides, Carbides, and Nitrides," by C. E. Wicks and F. E. Block, published in 1963, and including data available through 1959."
Contributing Partner: UNT Libraries Government Documents Department
Thermodynamic Properties of 65 Elements: Their Oxides, Halides, Carbides and Nitrides

Thermodynamic Properties of 65 Elements: Their Oxides, Halides, Carbides and Nitrides

Date: 1963
Creator: Wicks, C. E. & Block, F. E.
Description: From Introduction: "This Bureau of Mines bulletin was prepared to compile in readily usable form the heat content, heat-of-formation, and free-energy-of-formation data for 65 common elements and their respective oxides, halides, carbides, and nitrides. The bulletin was prepared to encourage the application of thermodynamics in the metallurgical field; consequently, the values have been presented in a simple, readily usable form and several examples of their applications have been shown."
Contributing Partner: UNT Libraries Government Documents Department
Thermodynamic Data for Mineral Technology

Thermodynamic Data for Mineral Technology

Date: unknown
Creator: Pankratz, L. B.; Stuve, J. M. & Gokcen, N. A.
Description: From Introduction: "This compilation is part of the Bureau of Mines continuing effort to provide information for use as guidelines in mineral technology advancement, pollution control, and energy economy."
Contributing Partner: UNT Libraries Government Documents Department
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