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Editor's Introduction: “What Has Athens To Do With Jerusalem?”: Apostasy And Restoration In The Big Picture, Daniel C. Peterson Jan 2000

Editor's Introduction: “What Has Athens To Do With Jerusalem?”: Apostasy And Restoration In The Big Picture, Daniel C. Peterson

Review of Books on the Book of Mormon 1989–2011

Introduction to the current issue, include editor's picks. Latter-day Saints appear to approach theology and history in ways that fit remarkably well into the Hebrew thought-world from which Christianity emerged rather than from the Hellenization that eventually emerged.

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Vol. 12 Num. 2 Farms Review Of Books, Farms Review Jan 2000

Vol. 12 Num. 2 Farms Review Of Books, Farms Review

Review of Books on the Book of Mormon 1989–2011

No abstract provided.

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Connecting The Nephite Story To Mesoamerican Research, Cherry B. Silver Jan 2000

Connecting The Nephite Story To Mesoamerican Research, Cherry B. Silver

Review of Books on the Book of Mormon 1989–2011

Review of Images of Ancient America: Visualizing Book of Mormon Life (1998), by John L. Sorenson

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East To West Through North And South: Mormon Immigration During The Civil War, Fred E. Woods Jan 2000

East To West Through North And South: Mormon Immigration During The Civil War, Fred E. Woods

BYU Studies

When LDS immigrants on their way to Utah crossed the Atlantic Ocean or the Eastern United States between 1861 and 1864, they encountered the difficulties of traveling in a nation at war. Their first-person accounts paint a vivid picture of the obstacles faced by these Saints as they journeyed to Utah during the U.S. Civil War. The narratives also depict an effective immigration system directed by Brigham Young and operated by dedicated immigration agents and other faithful Mormons who assisted immigrants along their journey.

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Vignettes Of Temple-Bound Russians, Thomas F. Rogers Jan 2000

Vignettes Of Temple-Bound Russians, Thomas F. Rogers

BYU Studies

Excerpts from a recently published personal journal give glimpses of the souls who found their way to the "Russian Weeks" in the Stockholm Sweden Temple.

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A Marketing Research Study For Wilson Diamonds, Robin Day, Kristen Jones, Xiaoyu Liu, Brandon Smith Jan 2000

A Marketing Research Study For Wilson Diamonds, Robin Day, Kristen Jones, Xiaoyu Liu, Brandon Smith

Student Works

Utah Valley has a very high concentration of university students. University students in Utah Valley also have the reputation of getting married quickly after starting their university careers. Because of the high number of engagements that take place in Utah Valley there are a large number of jewelry stores located around the valley trying to serve university student preferences and needs. This study will allow Wilson Diamonds to better understand student needs and implement solutions to better serve university students. The Tabor Group comprised of Robin Day, Kristen Jones, Xiaoyu Liu, Brandon Smith, Jeniffer Tabor.

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Leveraging Analysis Operators In Incremental Generation, Deryle W. Lonsdale Jan 2000

Leveraging Analysis Operators In Incremental Generation, Deryle W. Lonsdale

Faculty Publications

This paper discusses the integration of an operator-based generation component with a similarly-designed natural-language comprehension system. It begins by sketching the cognitive theory and modeling system that frame both systems. A brief summary of the comprehension system and its characteristics follows, including the relevant operators. The generation system with its own operators and processing stages is then introduced. The degree to which these two systems exhibit shared functionality is then explored, and ongoing work is mentioned.

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Modeling High Pressure Char Oxidation Using Langmuir Kinetics With An Effectiveness Factor, Jianhui Hong, William C. Hecker, Thomas H. Fletcher Jan 2000

Modeling High Pressure Char Oxidation Using Langmuir Kinetics With An Effectiveness Factor, Jianhui Hong, William C. Hecker, Thomas H. Fletcher

Faculty Publications

The global nth order rate equation has been criticized for lack of theoretical basis and has been shown to be inadequate for modeling char oxidation rates as a function of total gas pressure. The simple Langmuir rate equation is believed to have more potential for modeling high pressure char oxidation. The intrinsic Langmuir rate equation is applied to graphite flake oxidation data and agrees well with reaction rates at three temperatures over the entire range of oxygen pressure (1–64 atm). It also explains the change of reaction order with temperature. In this work, the intrinsic Langmuir rate equation is combined …

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Modeling Nitrogen Evolution During Coal Pyrolysis Based On A Global Free-Radical Mechanism, Steven T. Perry, Thomas H. Fletcher Jan 2000

Modeling Nitrogen Evolution During Coal Pyrolysis Based On A Global Free-Radical Mechanism, Steven T. Perry, Thomas H. Fletcher

Faculty Publications

A global free-radical mechanism and an associated rate equation for the evolution of light gas nitrogen during coal devolatilization are presented. The light gas nitrogen rate equation was used to modify an existing nitrogen model so that only a network devolatilization model and coal-specific chemical structural input data are required to adequately predict light gas nitrogen release at a variety of pyrolysis conditions. Model predictions show good agreement with nitrogen release data from pyrolysis of coals of rank from lignite to low volatile bituminous at heating rates from 0.5 to 105 K/s, temperatures as high as 2300 K, and …

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Improving The Accuracy Of Predicting Effectiveness Factors For Mth Order And Langmuir Rate Equations In Spherical Coordinates, Jianhui Hong, William C. Hecker, Thomas H. Fletcher Jan 2000

Improving The Accuracy Of Predicting Effectiveness Factors For Mth Order And Langmuir Rate Equations In Spherical Coordinates, Jianhui Hong, William C. Hecker, Thomas H. Fletcher

Faculty Publications

Char oxidation is often modeled using an mth order intrinsic reaction rate in conjunction with an effectiveness factor to account for intraparticle diffusion of gas species. This approach involves the use of a general modulus (MT) and using the first-order curve of effectiveness factor vs MT. This method was originally referred to as the general asymptotic solution. It has been suggested that a simple Langmuir rate equation is more suitable for modeling the effects of pressure on char reactivity. Therefore, several methods of developing general moduli for the Langmuir rate expression are shown. The general asymptotic …

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The Use Of Two Mixture Fractions To Treat Coal Combustion Products In Turbulent Pulverized-Coal Flames, Daniel V. Flores, Thomas H. Fletcher Jan 2000

The Use Of Two Mixture Fractions To Treat Coal Combustion Products In Turbulent Pulverized-Coal Flames, Daniel V. Flores, Thomas H. Fletcher

Faculty Publications

Previous coal combustion models using assumed-shape PDF's to treat turbulence-chemistry interactions have used only one progress variable to treat products from coal reactions. This assumes that the products of all coal reactions have the same composition. However. the composition of the combustion products of coal particles is known to vary with burnout, especially between devclatilization and char oxidation. In this work, two progress variables were implemented which distinguish between the products of devolatilization and those of char oxidation. This new approach requires as input the specified volatile content and elemental release during devolatilization. The values for these parameters were estimated …

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Norfolk And The Mormon Folk: Latter-Day Saint Immigration Through Old Dominion (1887-90), Fred E. Woods Jan 2000

Norfolk And The Mormon Folk: Latter-Day Saint Immigration Through Old Dominion (1887-90), Fred E. Woods

Faculty Publications

On 11 September 1887, the front page of the Norfolk Virginian had a bold headline, "Four Hundred Mormons," along with the following information: "The Old Dominion steamer Richmond, which arrived from New York yesterday, had on board four-hundred and twenty Mormon immigrants from the British Isles who had arrived in New York on Thursday on the steamship Wisconsin. The immigrants are all new converts to the Mormon religion and will swell the number of adherents to the Brigham Young faith in the territory considerably. The party is composed of men, women and children, and when the special train with nine …

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Improved Resolution Backscatter Measurements With The Seawinds Pencil-Beam Scatterometer, David G. Long, Michael W. Spencer, Chialin T. Wu Jan 2000

Improved Resolution Backscatter Measurements With The Seawinds Pencil-Beam Scatterometer, David G. Long, Michael W. Spencer, Chialin T. Wu

Faculty Publications

The SeaWinds scatterometer was launched on the NASA QuikSCAT spacecraft in June 1999 and is planned for the Japanese ADEOS-II mission in 2000. In addition to generating a global Ku-band backscatter data set useful for a variety of climate studies, these flights will provide ocean-surface wind estimates for use in operational weather forecasting. SeaWinds employs a compact "pencil-beam" design rather than the "fan-beam" approach previously used with SASS on Seasat, NSCAT on ADEOS-I, and the AMI scatterometer on ERS-1, 2. As originally envisioned and reported, the resolution of the SeaWinds backscatter measurements were to be antenna-beamwidth limited. In order to …

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Solid-State 13c Nmr Characterization Of Matched Tars And Chars From Rapid Coal Devolatilization, Steven T. Perry, Eric M. Hambly, Thomas H. Fletcher, Mark S. Solum, Ronald J. Pugmire Jan 2000

Solid-State 13c Nmr Characterization Of Matched Tars And Chars From Rapid Coal Devolatilization, Steven T. Perry, Eric M. Hambly, Thomas H. Fletcher, Mark S. Solum, Ronald J. Pugmire

Faculty Publications

Matched tar/char sets were prepared by pyrolysis of a lignite and a bituminous coal in two entrained flow reactors at temperatures between 900 K and 1650 K and heating rates of 104–105 K/s. Detailed chemical structural characterization of these tars and chars was performed using elemental analysis and solid-state 13C NMR. This is the first set of detailed solid-state 13C nuclear magnetic resonance (NMR) data on coal tar samples. The average aromatic cluster sizes of the primary tars from these experiments are quite similar to those of their parent coals, confirming an assumption often made …

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Measurement Of Soot And Char In Pulverized Coal Fly Ash, John M. Veranth, Thomas H. Fletcher, David W. Pershing, Adel F. Sarofim Jan 2000

Measurement Of Soot And Char In Pulverized Coal Fly Ash, John M. Veranth, Thomas H. Fletcher, David W. Pershing, Adel F. Sarofim

Faculty Publications

The unburned carbon in the fly ash produced by low-NOx pulverized coal combustion has been shown by electron microscopy to be a mixture of porous coal char particles and aggregates of submicron particles, which are thought to be soot. The carbon is bimodally distributed with large soot aggregates mixed with the char in the particles larger than 10 microns and dispersed soot found with the submicron particles. A method for determining the mass of soot and char by liquid-suspension gravity separation was used with both laboratory-scale and power plant fly ash samples. For low-NOx, staged, pilot-scale combustion of bituminous coal …

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Evaluation Of Forty-Two Corn (Zea Mays L.) Genotypes And Their Tolerance To Drought In Chiquimula, Servin Ardany Flores Galdámez Jan 2000

Evaluation Of Forty-Two Corn (Zea Mays L.) Genotypes And Their Tolerance To Drought In Chiquimula, Servin Ardany Flores Galdámez

Theses and Dissertations

The Corral de Piedra community is located in Chiquimula, Guatemala. The main agricultural activities are corn and bean production, small-scale gardens, and small animal production, such as poultry and pigs. The crop areas are predominantly located on lands with slopes between 12 and 55%, presenting low fertility conditions and poor moisture retention capabilities. In addition, local crop varieties have low productivity potentials and the winter season is characterized by poorly distributed and erratic periods of rain. The Benson Institute introduced a technology transfer model to increase and diversify agricultural production, while preserving current natural resources. An integral part of this …

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Agro-Socio-Economic Evaluation Of Three Rural Communities In The Colta Canton Of The Chimborazo Province, Ivan Asaquibay Paucar Jan 2000

Agro-Socio-Economic Evaluation Of Three Rural Communities In The Colta Canton Of The Chimborazo Province, Ivan Asaquibay Paucar

Theses and Dissertations

The faculty of natural resources, School of Agricultural Engineering of ESPOCH, with an agreement since 1992 with the Benson Institute of Brigham Young University has been working with the development of small scale production before its diffusion it is necessary to know the real social- economic conditions and the technological levels of the most important harvests of the communities, that when this model is involved in the aspects that affect the production. For this reason this investigation was made necessary in which the following objectives were raised: 1. Evaluate the social-economic conditions of the communities of San Lorenzo of Cahuiña, …

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About The Reviewers, Farms Review Jan 2000

About The Reviewers, Farms Review

Review of Books on the Book of Mormon 1989–2011

No abstract provided.

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A Mathematical Model For Spatially Varying Extracellular Matrix, J. C. Dallon, J. A. Sherratt Jan 2000

A Mathematical Model For Spatially Varying Extracellular Matrix, J. C. Dallon, J. A. Sherratt

Faculty Publications

Orientation of extracellular matrix fibers in the skin is a key ingredient of tissue appearance and function, and differences in fiber alignment are one of the main distinctions between scar tissue and normal skin. In this paper, the authors develop a mathematical model for alignment of collagen fibers and the fibroblast cells that remodel them; the model extends previous work in which spatial variation was excluded. Numerical simulations of the model are presented, which show spatial variations in alignment over long transients, but with spatially uniform behavior in the long term. This is investigated further via asymptotic analysis, using the …

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Estimating Tessellation Parameter Intervals For Rational Curves And Surfaces, Thomas W. Sederberg, Jianmin Zheng Jan 2000

Estimating Tessellation Parameter Intervals For Rational Curves And Surfaces, Thomas W. Sederberg, Jianmin Zheng

Faculty Publications

This paper presents a method for determining a priori a constant parameter interval with which a rational curve or surface can be tessellated such that the deviation of the curve or surface from its piecewise linear approximation is within a specified tolerance. The parameter interval is estimated based on information about the second order derivatives in the homogeneous coordinates, instead of using affine coordinates directly. This new step size can be found with roughly the same amount of computation as the step size presented in [Cheng 1992], though it can be proven to always be larger than Cheng's step size. …

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Boundary Control For Automated Sweeping Of Finite Element Meshes, Robert A. Kerr Dec 1999

Boundary Control For Automated Sweeping Of Finite Element Meshes, Robert A. Kerr

Theses and Dissertations

Finite element analysis depends greatly upon a high-quality mesh to be able to provide reasonably accurate answers to engineering problems. Models that need to be analyzed using finite element analysis are becoming increasingly more complex, and correspondingly harder to mesh with good quality. Skew is one quality metric which can cause problems with finite element analyses. This thesis explains how skew is calculated, discusses two common sources of skew: multiply-linked surfaces with interval constraints, and biased edge meshes. Two methods of lessening skew in surface meshes are then presented: the skew control algorithm, and the curve morphing algorithm. These algorithms …

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Dual Function Euv Multilayer Mirrors For The Image Mission, David D. Allred, R. Steven Turley, Matthew B. Squires Nov 1999

Dual Function Euv Multilayer Mirrors For The Image Mission, David D. Allred, R. Steven Turley, Matthew B. Squires

Faculty Publications

We have developed a new family of EUV multilayer mirror coatings using uranium. Using this approach we have coated a set of six mirrors for the EUV Imager, a component of the IMAGE mission. This mission is a Medium Explorer (MIDEX) program, which is scheduled for launch early in 2000. The EUV Imager will study the distribution of He+ in the Earth's plasmasphere by detecting its resonantly scattered emission at 30.4 nm (41 eV) and will produce images of the structure and dynamics of the cold plasma on a global scale. There is, however, a bright at 58.4 nm (21 …

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Simulation And Density Functional Study Of A Simple Membrane Separating Two Restricted Primitive Model Electrolytes, Richard L. Rowley, Dezso Boda, Douglas Henderson, Stefan Sokolowski Nov 1999

Simulation And Density Functional Study Of A Simple Membrane Separating Two Restricted Primitive Model Electrolytes, Richard L. Rowley, Dezso Boda, Douglas Henderson, Stefan Sokolowski

Faculty Publications

A simple membrane, supporting charge densities on its inner and outer surfaces, is considered. In addition to the electrostatic potential, the membrane interacts with the surrounding fluid by a short range van der Waals-like potential. The fluid beyond the outer surface is a three-component restricted primitive electrolyte consisting of two cations and one anion. The membrane is impermeable to one of the cations so that the fluid in the membrane and beyond the inner surface is a two-component restricted primitive electrolyte. We use Monte Carlo simulations and density functional theory to study the density profiles of the electrolyte and the …

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Selective Excitation And Thermal Quenching Of The Yellow Luminescence Of Gan, John S. Colton, P. Y. Yu, K. L. Teo, E. R. Weber, P. Perlin, I. Grzegory, K. Uchida Nov 1999

Selective Excitation And Thermal Quenching Of The Yellow Luminescence Of Gan, John S. Colton, P. Y. Yu, K. L. Teo, E. R. Weber, P. Perlin, I. Grzegory, K. Uchida

Faculty Publications

We report the observation of narrower structures in the yellow luminescence of bulk and thin-film n-type GaN, using the technique of selective excitation. These fine structures exhibit thermal quenching associated with an activated behavior. We attribute these fine structures to phonons and electronic excitations of a shallow donor-deep acceptor complex, and determine its activation energy for delocalization. Our results suggest that in addition to distant donor-acceptor pairs, the yellow luminescence can also involve emission complexes of shallow donors and deep acceptors.

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Accuracy Of Scatterometer-Derived Winds Using The Cramer-Rao Bound, David G. Long, Travis E. Oliphant Nov 1999

Accuracy Of Scatterometer-Derived Winds Using The Cramer-Rao Bound, David G. Long, Travis E. Oliphant

Faculty Publications

A wind scatterometer makes measurements of the normalized radar-backscatter coefficient O of the ocean surface. To retrieve the wind, a geophysical model function (GMF), which relates O to the near-surface wind, is used. The wind vector can be estimated using maximum-likelihood techniques from several O measurements made at different azimuth angles. The probability density of the measured O is assumed to be Gaussian with a variance that depends on the true O and therefore, depends on the wind through the GMF. With this model for wind estimation, the Cramer-Rao (C-R) bound is derived for wind estimation, and its implications for …

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High Foal Mortality Limits Growth Of A Desert Feral Horse Population In Nevada, Paul D. Greger, Evan M. Romney Oct 1999

High Foal Mortality Limits Growth Of A Desert Feral Horse Population In Nevada, Paul D. Greger, Evan M. Romney

Great Basin Naturalist

A population of feral horses (Equus caballus) in the southern Great Basin Desert of Nevada was monitored from 1989 to 1998 to determine size, distribution, and population trends. All individual horses observed in the population were identified by unique markings during the first 2 yr of study, and most animals could be observed annually. During this study no new horses were identified in the population, indicating that no immigration occurred from outside populations. The population reached a high of 65 horses yearling or older in 1992 and declined each year thereafter, reaching a low of 36 horses in …

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Committee Activities, Phil Melzer, Tim Connor, Jean Han Oct 1999

Committee Activities, Phil Melzer, Tim Connor, Jean Han

Journal of East Asian Libraries

No abstract provided.

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By Study And Also By Faith: The Faculty At Brigham Young University Responds, Keith J. Wilson Oct 1999

By Study And Also By Faith: The Faculty At Brigham Young University Responds, Keith J. Wilson

BYU Studies

This article present significant statistical information about BYU faculty attitudes toward faith and scholarship gathered in a 1998 survey conducted at selected religious universities by researchers at Baylor University.

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Classic Maya Religion: Beliefs And Practices Of An Ancient American People, Stephen D. Houston Oct 1999

Classic Maya Religion: Beliefs And Practices Of An Ancient American People, Stephen D. Houston

BYU Studies

Though difficult to decipher, Maya religion permeated a complex ancient world with an overriding sense of the sacral nature of all things and reveals much about how those people lived and why they vanished.

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Evaluation Of The Use Of Optical Fiber Thermometers For Thermal Control Of The Quench Module Insert, Matthew R. Jones, Jeffery T. Farmer, Shawn P. Breeding Sep 1999

Evaluation Of The Use Of Optical Fiber Thermometers For Thermal Control Of The Quench Module Insert, Matthew R. Jones, Jeffery T. Farmer, Shawn P. Breeding

Faculty Publications

Issues regarding the use of optical fiber thermometers to control heater settings in a microgravity vacuum furnace are addressed. It is desirable to use these probes in environments such as the International Space Station, because they can be operated without re-calibration for extended periods. However, the analysis presented in this paper shows that temperature readings obtained using optical fiber thermometers can be corrupted by emissions from the fiber when extended portions of the probe are exposed to elevated temperatures.

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