Digital Commons Network^™

Full Issue, Vol. 55 No. 2

Great Basin Naturalist

No abstract provided.

On Civilizational Worldviews, David Richardson

Comparative Civilizations Review

No abstract provided.

A Characteristic 500-Year Process—Time In Cultural Civilizations, A. S. Iberal

Comparative Civilizations Review

No abstract provided.

Sail And Rail Pioneers Before 1869, Stanley B. Kimball

BYU Studies

LDS immigrants trekking west by boat and train endured harassment filthy accommodations hunger and accidents before even starting their wagon journeys.

The National Personnel Records Center Fire Of July 12, 1973, Rex Fransden

Mormon Pacific Historical Society

No abstract provided.

Pulse Width Modulation Drive Technique For High Resolution Liquid Crystal Gratings, Gregory P. Nordin, S. T. Kowel, J. H. Kulick, R. G. Lindquist, P. J. Nasiatka, A. Thomsen

Faculty Publications

We report the use of a pulse-width modulation drive technique for high-resolution liquid-crystal gratings and show how the grating diffraction efficiency depends on the duty cycle of the drive signal. We identify a regime in which the diffraction efficiency is linearly proportional to the duty cycle, thereby providing a linear drive characteristic.

Full Issue

Swiss American Historical Society Review

No abstract provided.

Special Reports, Amy Vladeck Heinrich, Kristina Kade-Troost

Journal of East Asian Libraries

No abstract provided.

Bombing The Sister Republic: The United States And Switzerland During World War Ii, James H. Hutson

Swiss American Historical Society Review

At 11:10 A.M., April 1, 1944, American military authorities in London received the following "strike message" from aircraft attacking a target in Europe: "392 Group bombed Last Resort with poor results at 10:50 hours. " This terse communication described the "gravest violation " of Swiss neutrality during the Second World War--in fact, during the entire twentieth century: the bombing of the city of Schafthausen by planes of the 2nd Division of the American 8th Army Air Force.

Otter: A Testbed Submersible For Robotics Research, Tim Mclain, H H. Wang, R L. Marks, S D. Fleischer, D W. Miles, G A. Sapilewski, S M. Rock, M J. Lee, R C. Burton

Faculty Publications

Untethered, unmanned submersibles (UUSs) have the potential of becoming useful tools in nuclear reactor inspection and repair and waste-site cleanup and survey, in addition to subsea exploration. Classical "hand-in-glove" control methods used currently by tethered, remotely-operated vehicles (ROVs) are unsuitable for UUS systems which have, at best, limited communications. The Stanford Aerospace Robotics Laboratory (ARL) has joined with the Monterey Bay Aquarium Research Institute (MBARI) in a program to develop new methods of controlling UUS systems.

As a part of this effort, a submersible testbed has been built to test and develop new technologies that will make UUSs useful tools …

Lds Collectors Edition Cd-Rom, Larry K. Smith

Review of Books on the Book of Mormon 1989–2011

Review of LDS Collectors Edition CD-ROM (1994, 1995), by Infobases.

Partial Pixels: A Three-Dimensional Diffractive Display Architecture, Gregory P. Nordin, M. W. Jones, S. T. Kowel, J. H. Kulick, R. G. Lindquist, P. J. Nasiatka, A. Parker

Faculty Publications

We describe in detail the partial pixel architecture that permits the realization of three-dimensional (3-D) displays that are functionally equivalent to a real-time holographic stereogram. This architecture permits the simultaneous presentation of multiple stereoscopic images so that motion parallax is discernible in the resultant 3-D scene. The key innovation of the architecture is that each pixel is subdivided into partial pixels, which in turn can be implemented as individual diffraction gratings. We describe a static display that exhibits a 3-D image with one-dimensional motion parallax, thereby demonstrating key features of the architecture. A variety of partial pixel implementations are discussed …

Em Interaction Of Handset Antennas And A Human In Personal Communications, Michael A. Jensen, Yahya Rahmat-Samii

Faculty Publications

In personal communications, the electromagnetic interaction between handset-mounted antennas and the nearby biological tissue is a key consideration. This paper presents a thorough investigation of this antenna-tissue interaction using the finite-difference time-domain (FDTD) electromagnetic simulation approach with detailed models of real-life antennas on a transceiver handset. The monopole, side-mounted planar inverted F, top-mounted bent inverted F, and back-mounted planar inverted F antennas are selected as representative examples of external and internal configurations. Detailed models of the human head and hand are implemented to investigate the effects of the tissue location and physical model on the antenna performance. Experimental results are …

Behind The Iron Curtain: Recollections Of Latter-Day Saints In East Germany, 1945-1989, Garold N. Davis, Norma S. Davis

BYU Studies

Personal interviews with East German Saints, who survived World War II and rebuilt Zion under Communism, document moving stories of faith and dedication.

Review Essay: Ardolino, Frank. Apocalypse And Armada In Kyd's Spanish Tragedy, Robin B. Barnes

Quidditas

Ardolino, Frank. Apocalypse and Armada in Kyd's Spanish Tragedy. Sixteenth-Century Essays and Studies, 29. Sixteenth-Century Journal Publishers, Kirksville, Mo., 1995. xvi + 187 pp. $35.00.

Study Of The Time Efficiency And Volume Of Wood Used For Three Types Of Stove In The Salitrón Community Of San Juan Ermita, Department Of Chiquimula, Fredy Samuel Coronado López

Theses and Dissertations

In developing countries such as Guatemala, firewood is increasingly being used for cooking in most rural areas. Consequently, there is a shortage of firewood in these areas beca use trees do not grow at the same rate as they are consumed. Some authors report that 90% of the heat from firewood is lost during combustion. Several alternatives to open pit fires exist to reduce the amount of firewood used. However, these alternatives need to be evaluated to determine their efficiency. This project compared the time efficiency and volume of firewood used in the Finlandia style improved stoves, Josefina stoves, and …

Adso And Omen Iii: The Antichrist In The Tenth And Twentieth Centuries, Boyd H. Hill Jr.

Quidditas

The Seventies are said to have shattered when Johnny Rotten screamed "I am the antichrist!" (Pond 53)

Review Essay: Acheson, Katherine, O., Ed. The Diary Of Anne Clifford, 1616-1619: A Critical Edition, Retha M. Warnicke

Quidditas

Acheson, Katherine O., ed. The Diary of Anne Clifford, 1616-1619: A Critical Edition. Garland, New York, 1995. 225 pp. $67.00.

Cooperation, Conflict, And Compromise: Women, Men, And The Environment In Salt Lake City, 1890-1930, Thomas G. Alexander

BYU Studies

Through efforts that crossed religious, political, and gender lines, Salt Lake City citizens realized some success in clearing their acrid air and promoting a "City Beautiful" and functional.

Benedicte Wrensted Danish Photographer In Idaho Rediscovered, Joanna Scherer

The Bridge

In 1979 a book The American Image: Photographs from

the National Archives, 1860-1960 was published. It was

based on an exhibit of the same name, which opened at the

National Archives in Washington, D. C. in November, 1979.

In the forward James Rhoads, archivist of the United

States, tells about how the photos were selected.

Anders Kristian Andersen 1825-1920, Anders K. Andersen

The Bridge

Richard Sandager was given this manuscript (written in

Danish by his grandfather) when he visited Denmark in

1965. He received it from A. Kristian Andersen, another

grandson of Anders Kristian Andersen, who lived on the

old family farm. He was a Representative to the Danish

Parliament in Copenhagen at that time.

Full Issue

The Bridge

No abstract provided.

Waterjet Cutting Of Cross-Linked Glass, Fang Yuan, John A. Johnson, David D. Allred, Robert H. Todd

Faculty Publications

The cutting of cross-linked glasses such as silica and Corning 7059 can be difficult. We conducted an experimental study to determine the feasibility of using a high-speed waterjet to cut thin Corning 7095 glass. Cutting using either pure de-ionized high pressure water at 380 MPa (55 000 psi) or de-ionized water with entrained garnet abrasive was studied. The roughness of the cut surfaces was measured and compared. Photomicrographs were taken of glass examples cut at different traversing rates with pure water and with the abrasive entrained waterjet. Comparative studies of cutting with and without the entrained abrasive material showed that …

Decreases In The Swelling And Porosity Of Bituminous Coals During Devolatilization At High Heating Rates, Thomas K. Gale, Thomas H. Fletcher, Calvin H. Bartholomew

Faculty Publications

Concern about comparability and validity of different methods for producing coal chars for reactivity experiments has led to research on the effect of devolatilization conditions on the char physical and chemical structure. Particle diameter and porosity changes during devolatilization significantly affect char oxidation rates. In particular, physical properties of chars prepared in drop tube reactors differ greatly from chars prepared in flat flame burner experiments. Recent data indicate that the presence of oxygen in the gas atmosphere has no effect on swelling until char oxidation has begun. The present research concentrates on the effects of heating rate, particle temperature and …

Effects Of Pyrolysis Conditions On Internal Surface Areas And Densities Of Coal Chars Prepared At High Heating Rates In Reactive And Non-Reactive Atmospheres, Thomas K. Gale, Thomas H. Fletcher, Calvin H. Bartholomew

Faculty Publications

Concern about comparability and validity of different methods for producing coal chars for reactivity experiments has led to research on the effect of devolatilization conditions on the char physical and chemical structure. Particle diameter and porosity changes during devolatilization significantly affect char oxidation rates. In particular, physical properties of chars prepared in drop tube reactors differ greatly from chars prepared in fiat flame burner experiments. Recent data indicate that the presence of oxygen in the gas atmosphere has no effect on swelling until char oxidation has begun. The present research concentrates on the effects of heating rate, particle temperature and …

Thermophoretic Sampling Of Coal-Derived Soot Particles During Devolatilization, Jinliang Ma, Thomas H. Fletcher, Brent W. Webb

Faculty Publications

Thermophoretic sampling of soot particles formed during high-temperature coal devolatilization is performed in order to examine soot particle sizes and shapes. Coal particles are injected along the centerline of a laminar flow flat flame burner, where a fuel-rich methane-air flame is used as a heat source. Volatiles released from the coal particles form a cloud of soot particles at high temperatures in the absence of oxygen. A carbon-coated microscope grid is briefly inserted into the soot cloud, where the temperature gradient between the soot particles and the cold grid surface causes the migration of soot particles and results in deposition. …

Book Review: A Very Civil War: The Swiss Sonderbund War Of 1842., Sabine Jessner

Swiss American Historical Society Review

The Sonderbund war of 1847 was, as the author convincingly demonstrates, "a very civil war." Unlike the later North American sectional conflict, Switzerland's regional strife lasted but twenty-five days and cost fewer than a hundred lives. Yet these statistics belie the rancor that divided the opposing parties, the more than 150,000 men under arms on both sides, and the very imminent danger of international involvement.

Ultrasonic Enhancement Of Antibiotic Action On Gram-Negative Bacteria, William G. Pitt, Michael O. Mcbride, Jared K. Lunceford, Randall J. Roper, Richard D. Sagers

Faculty Publications

The effect of gentamicin upon planktonic cultures of Pseudomonas aeruginosa, Escherichia coli, Staphylococcus epidermidis, and Staphylococcus aureus was measured with and without application of 67-kHz ultrasonic stimulation. The ultrasound was applied at levels that had no inhibitory or bactericidal activity against the bacteria. Measurements of the MIC and bactericidal activity of gentamicin against planktonic cultures of P. aeruginosa and E. coli demonstrated that simultaneous application of 67-kHz ultrasound enhanced the effectiveness of the antibiotic. A synergistic effect was observed and bacterial viability was reduced several orders of magnitude when gentamicin concentrations and ultrasonic levels which by themselves did not reduce …

A Vlsi Implementation Of A Parallel, Self-Organizing Learning Model, Tony R. Martinez, George L. Rudolph, Linton G. Salmon, Matthew G. Stout

Faculty Publications

This paper presents a VLSI implementation of the Priority Adaptive Self-organizing Concurrent System (PASOCS) learning model that is built using a multi-chip module (MCM) substrate. Many current hardware implementations of neural network learning models are direct implementations of classical neural network structures - a large number of sample computing nodes connected by a dense number of weighted links. PASOCS is one of a class of ASOCS (Adaptive Self-Organizing Concurrent System) connectionist models whose overall goal is the same as classical neural networks models, but whose functional mechanisms differ significantly. This model has potential application in areas such as pattern recognition, …

Characterization Of The Near-Interface Region Of Chemical Vapor Deposited Diamond Films On Silicon By Backscatter Kikuchi Diffraction, Brent L. Adams, K. Kunze, S. Geier, R. Hessmer, M. Schreck, B. Rauschembach, B. Stritzker

Faculty Publications

The lattice orientations near the interface of chemical vapor deposited diamond films on Si(001) have been studied by orientation imaging microscopy. This technique is based on the automated analysis of electron backscatter Kikuchi diffraction patterns. The electron beam has been scanned in discrete steps over the reverse side of the diamond film after having removed the substrate. The obtained data have allowed us to determine the texture and to visualize quantitatively the orientational arrangement of and among individual diamond crystallites in the near-interface region. A comparison with the orientation of the substrate has proved the existence of epitaxially nucleated grains. …