Digital Commons Network^™

Inaugural Response, David A. Bednar

Religious Educator: Perspectives on the Restored Gospel

This address was delivered by President Bednar at Ricks College (now BYU-Idaho).

Spline Based Path Planning For Unmanned Air Vehicles, Kevin B. Judd, Timothy W. Mclain

Faculty Publications

A trajectory planning scheme that generates feasible flight routes for an unmanned air vehicle (UAV) is developed. A preliminary path is generated from a Voronoi diagram based on threat locations. This path consists of a series of straight-line segments that cannot be followed exactly by the UAV. Using a series of cubic splines to connect these straight-line segments, this path is refined into an optimum path that is flyable by the UAV. Utilizing a decomposition strategy, both the full path (coarse detail) to the target and the proximate optimum path (fine detail) near the UAV can be quickly computed. The …

Electromagnetics, David V. Arnold, Richard H. Selfridge, Karl F. Warnick

Faculty Publications

Many applications of electrical engineering require a knowledge of the behavior of voltages and currents in electronic devices and within conductors. In many other situations it is not enough to understand the behavior the voltages and currents in just the conductors and other components, but also the influence of the voltage and current on surrounding materials.

Natural And Unnatural; Wild And Cultural, Holmes Rolston Iii

Western North American Naturalist

Yellowstone National Parks mission and policy can be clarified by analysis of the natural and the unnatural. Nature is a comprehensive word, in some uses excluding nothing; more useful is a contrast distinguishing nature and culture. Specifying "wild nature" denotes spontaneous nature absent human influence. Critics claim that the meaning of wild nature, especially of wilderness, is a foil of culture. Pristine nature, often romanticized, is contrasted with a technological and industrial culture. By this account, wilderness is a social construction.

Nevertheless, wild nature successfully denotes, outside culture, an evolutionary and ecological natural history, which remains present on the Yellowstone …

Full Issue, Vol. 61 No. 3

Western North American Naturalist

No abstract provided.

Predicting The Effects Of Dimensional And Material Property Variations In Micro Compliant Mechanisms, Jonathan W. Wittwer

Theses and Dissertations

Surface micromachining of micro-electro-mechanical systems (MEMS), like all other fabrication processes, has inherent variation that leads to uncertain material and dimensional parameters. To obtain accurate and reliable predictions of mechanism behavior, the effects of these variations need to be analyzed. This thesis expands already existing tolerance and uncertainty analysis methods to apply to micro compliant mechanisms. For simple compliant members, explicit equations can be used in uncertainty analysis. However, for a nonlinear implicit system of equations, the direct linearization method may be used to obtain sensitivities of output parameters to small changes in known variables. This is done by including …

Fuel-Saving Strategies For Dual Spacecraft Interferometry Missions, Christopher A. Bailey, Timothy W. Mclain, Randal W. Beard

Faculty Publications

Separated spacecraft interferometry missions will require that spacecraft move in a coordinated fashion to ensure minimal and balanced consumption of fuel. This paper develops strategies for determining interferometry mission plans that result in significant fuel savings over standard approaches. Simulation results demonstrate that valuable reductions in fuel consumption can be realized by combining the retargeting and imaging maneuvers required to image multiple stellar sources. Fuel-optimal imaging strategies have been developed for two-spacecraft interferometry missions similar to the proposed StarLight mission using chained local optimization methods. Based on these strategies, sampling-pattern guidelines for space-borne interferometry missions have been developed.

Economy And 'New Economy' In The United States And Germany, Phillip J. Bryson

Faculty Publications

The expression "New Economy" is used inconsistently. This Article review the driving forces of the US boom of the 1990s, examining the changes introduced in the period and before, focusing on the IT sector and new technologies. The "New Economy" is not just the new sectors, but changes in the overall economy emanating from them. These changes will not evaporate in an economic slowdown. Comparisons of the USA with Germany and Europe illustrate that the "New Economy" will also continue to develop there on the foundations already laid.

Kaisha-Shi: A Brief Glimpse Of Japanese Company Histories And Company Culture, Eizaburo Okuizumi

Journal of East Asian Libraries

No abstract provided.

Those Were The Days! A Short History Of The East Asian Libraries Cooperative World Wide Web, Maureen Donovan

Journal of East Asian Libraries

No abstract provided.

Cooperative Control Of Uav Rendezvous, Timothy W. Mclain, Phillip R. Chandler, Steven Rasmussen, Meir Pachter

Faculty Publications

The cooperative control of timing and synchronization of tasks of multiple unmanned air vehicles (UAVs) represents a valuable capability for a wide range of potential multi-UAV missions. This research addresses the specific problem of cooperative rendezvous in which multiple UAVs are to arrive at their targets simultaneously. The development of a rendezvous manager state machine and a cooperative control decomposition approach are described. Simulation results demonstrating the feasibility of the approach are presented.

Image Reconstruction Using Data-Dependent Triangulation, Thomas W. Sederberg, Xiaohua Yu, Bryan S. Morse

Faculty Publications

Image reconstruction based on data-dependent triangulation with new cost functions and optimization can create higher quality images than traditional bilinear or bicubic spline reconstruction. The article presents a novel method for image reconstruction using a piecewise linear intensity surface whose elements don't generally align with the coordinate axes. This method is based on the technique of data-dependent triangulation (DDT) that N. Dyn et al. (1990) introduced and has proven capable of producing more pleasing reconstructions than axis-aligned methods.

Effective Bandwidth For Traffic Engineering, Mark J. Clement, Rob Kunz, Seth Nielson, Quinn O. Snell

Faculty Publications

In today’s Internet, demand is increasing for guarantees of speed and efficiency. Current routers are very limited in the type and quantity of observed data they can provide, making it difficult for providers to maximize utilization without the risk of degraded throughput. This research uses statistical data currents provided by router vendors to estimate the impact of changes in network configuration on the probability of link overflow. This allows service providers to calculate in advance, the effect of grooming on a network, eliminating the conservative trial-and-error approach normally used. These predictions are made using Large Deviation Theory, which focuses on …

Establishment, Growth, And Early Survival Of Woody Riparian Apecies At A Colorado Gravel Pit, James E. Roelle, Douglas N. Gladwin, Brian S. Cade

Western North American Naturalist

Presence of a wetted edge during the period of seedfall was an effective predictor of suitable establishment (defined as germination and survival to the 1st autumn) locations for Populus deltoides subsp. monilifera, Salix amygdaloides, S. exigua, and Tamarix ramosissima seedlings during 3 successive years of a gravel pit revegetation project in Fort Collins, Colorado. At locations predicted to be suitable for establishment, position within the pit (possibly reflecting additional moisture provided by seepage) was a significant factor in determining whether establishment actually occurred. Cover of herbaceous species, which became established at the same time as, or after, woody seedlings, was …

Determination Of An Ethane Intermolecular Potential Model For Use In Molecular Simulations From Ab Initio Calculations, Richard L. Rowley, Tapani A. Pakkanen, Yan Yang

Faculty Publications

Counterpoise-corrected, supermolecule, ab initio energies obtained at the MP2/6-311+G(3df, 2pd) level were computed for 22 different relative orientations of two ethane molecules as a function of the separation distance between the molecular centers. These energies were used to regress the parameters in several simple, analytical, interatomic or site-site models that can be used for implementation in molecular simulations. Sensitivity analysis indicated that the inter molecular potential surface is insensitive to the C-C interactions and that the parameters in the C-C model are coupled and unobtainable from the dimer energies. Representation of the potential surface can be made in terms of …

Vol. 03 No. 1 Journal Of Microfinance, Journal Of Microfinance

Journal of Microfinance / ESR Review

No abstract provided.

Microfinance Myopia: Lessons From The Mainstream, Kim Wilson

Journal of Microfinance / ESR Review

This essay attempts to remove the shades that blind the microfinance sector to the value of its customers and what its customers truly value. It proposes that the social agenda and financial health of microfinance institutions would be far more sound if we understood who our customers are, why they leave, what they really want, and the real business we are all in.

Appraising Industrial Special-Purpose Properties, Robert G. Crawford, Barrett A. Slade

Faculty Publications

This article proposes a new technique, based on utilization rates, for estimating economic obsolescence in the appraisal of industrial special-purpose properties. A utilization-based measure, which explicitly considers the operating leverage of the facility, allows for proper calculation of the obsolescence. Theoretically correct valuation principles underlie the proposed utilization methodology. The technique uses inputs that are reasonably available to an appraiser, thus providing a practical application of the proposed methodology.

Simultaneous Capture And Mineralization Of Coal Combustion Flue Gas Carbon Dioxide (Co2), Morris D. Argyle, Katta J. Reddy, Sanil John, Hollis Weber, Pradip Bhattacharyya, David T. Taylor, Mikol Christensen, Thomas Foulke, Paul Fahlsing

Faculty Publications

The mineral carbonation, a process of converting CO2 into stable minerals (mineralization), has been studied extensively to capture and store CO2. However, most of the mineral carbonation studies have been largely investigated at lab scale. Preliminary and pilot scale studies for accelerated mineral carbonation (AMC) were conducted at one of the largest coal-fired power plants (2120 MW) in the USA by reacting flue gas with fly ash particles in a fluidized bed reactor. In the preliminary experiments, flue gas CO2 and SO2 concentrations decreased from 13.0 to 9.6% and from 107.8 to 15.1 ppmv, respectively during the first 2 min. …

History Of Pololu Valley

Mormon Pacific Historical Society

No abstract provided.

Full Issue, Deseret Language And Linguistics Society

Deseret Language and Linguistic Society Symposium

No abstract provided.

Toward A Psychological Analysis Of The Sentence From The Work Of Lashley, Chomsky, Wundt, Polanyi, And Skousen's Aml, Bruce L. Brown

Deseret Language and Linguistic Society Symposium

No abstract provided.

An Nlp System For Extracting And Representing Knowledge From Abbreviated Text, Deryle Lonsdale, Merrill Hutchison, Tim Richards, William Taysom

Deseret Language and Linguistic Society Symposium

No abstract provided.

A Speech Interface To Genealogical Data, Deryle W. Lonsdale

Faculty Publications

This talk presents an interface that has been developed to enable users to access genealogical information via speech. Whereas the more traditional approaches for accessing data are prevalent in today’s commercial genealogical products (e.g. windows, icons, and point-and-click methods), hands-free access to information is becoming increasingly popular. There would seem to be a potential demand for speech-based access to genealogical information, particularly among enthusiasts who might require mobile access, or those who are uncomfortable with or unable to use manual methods. Yet software to perform this function for genealogical access does not appear to be widely available yet.

An Integrated System For Processing Information From Genealogical Text, Deryle W. Lonsdale, Merrill Hutchison, Tim Richards, William Taysom

Faculty Publications

This presentation introduces an integrated software system that has been designed and implemented to allow processing of difficult text. The genealogical text subdomain often exhibits characteristics that do not occur in more general written language. The system we describe has been developed specifically to address the extraction and analysis of information from such specialized text.

Book Review: Six Bridges: The Legacy Of Othmar Ammann, Nicole Butz

Swiss American Historical Society Review

Around his eightieth birthday, the Swiss-American engineer, Othmar Ammann moved to an apartment at the top of the Carlyle Hotel in Manhattan. One imagines that he, gazing down on the city below, could have only marveled at how much its landscape had changed since his arrival there fiftyodd years earlier. He also could have delighted in his own accomplishments, the vistas from his new home offering visual confirmation of his professional successes. With views in three directions, Ammann would have seen virtually all of "his bridges": the George Washington to the north; the Triborough, Bronx-Whitestone, and Throgs Neck to the …

Image Reconstruction And Enhanced Resolution Imaging From Irregular Samples, David G. Long, David S. Early

Faculty Publications

While high resolution, regularly gridded observations are generally preferred in remote sensing, actual observations are often not evenly sampled and have lower-than-desired resolution. Hence, there is an interest in resolution enhancement and image reconstruction. This paper discusses a general theory and techniques for image reconstruction and creating enhanced resolution images from irregularly sampled data. Using irregular sampling theory, we consider how the frequency content in aperture function-attenuated sidelobes can be recovered from oversampled data using reconstruction techniques, thus taking advantage of the high frequency content of measurements made with nonideal aperture filters. We show that with minor modification, the algebraic …

Burden Of Proof: A Review Of Fingerprints Of God, By Arvin S. Gibson, Kevin Livingstone

Review of Books on the Book of Mormon 1989–2011

Review of Fingerprints of God: Evidences from Near-Death Studies, Scientific Research on Creation, and Mormon Theology (1999), by Arvin S. Gibson

Taking The Scenic Route: From Denmark To America Via Australia, Borge M. Christensen

The Bridge

From Copenhagen across the Atlantic to America, occasionally via Germany or England, Danish emigrants usually followed the most direct route. The Atlantic is the ocean in the Danish Immigrant Museum's trademark "Across Oceans, Across Time." A few found their way to the New World via South America. But the young cabinetmaker in this story went the other way around. He circumnavigated the globe and stopped a few years in Australia before he finally settled in America.

About The Reviewers, Farms Review

Review of Books on the Book of Mormon 1989–2011

No abstract provided.