Engineering Commons^™

A Case Study Of Teaching A Quantitative Course Using Archived Streaming Video, Paul Savory

Department of Industrial and Management Systems Engineering: Faculty Publications

This case study highlights some of the issues and difficulties experienced in teaching a quantitative course using three methods of delivery: in-class to an audience of students, television broadcast over a satellite system to distance students, and archived streaming video accessible by students. The discussion is applicable to administrators and faculty exploring the option of teaching a course using multiple delivery approaches.

Nebraska Blueprint – Fall 2004

Nebraska Blueprint (Student Publication)

Table of Contents:

A letter from the editor . . .

A Green House Effect: Nebraska Embraces Eco-Friendly Construction

A Crumbly Deal – Tires are piling up in landfills, so researchers are presenting new ways to recycle the rubber

A River Runs Through It – U.S. Army Corps of Engineers projects on the Missouri River

How Is Ethanol Made? – It takes more than a plant to whip up what fuels our cars and also fills our bellies

How Do Cell Phones Work? – Cell phone networks work with towers, phone companies so you can chat as you go

What …

Using Wind To Power A Groundwater Circulation Well—Preliminary Results, Andrew Curtis Elmore, Ron Gallagher, K. David Drake

United States Environmental Protection Agency: Staff Publications

In areas of the country where the U.S. Department of Energy has classified the available wind resources as Class 3 or greater, the use of wind turbines to provide power to relatively small remediation systems such as groundwater circulation wells may be technically and economically feasible. Groundwater circulation wells are a good candidate technology to couple with renewable energy, because the remediation system removes contamination from the subject aquifer with no net loss of the groundwater resource, while the wind turbine does not create potentially harmful air emissions. Wind data collected in the vicinity of the former Nebraska Ordnance Plant …

A Template-Based Conceptual Modeling Infrastructure For Simulation Of Physical Security Systems, Paul Savory

Department of Industrial and Management Systems Engineering: Faculty Publications

Although simulation is one of the most innovative and cost-effective tools for modeling and analyzing a system, simulation studies often fail to provide any useful results. One reason is attributed to the fact that model formulation depends on the skills of the analyst. This paper describes a research to develop a conceptual modeling infrastructure to assist a simulation analyst in specifying components for studying physical security systems. The modeling framework has been programmed as an internet-based web application. Using the application, the successful development and implementation of a physical security simulation model will be aided by a defined scientific methodology …

Acuta Enews October 2004, Vol. 33, No. 10

ACUTA Newsletters

ln This lssue

Streaming Video Patent lssue and Higher Ed........................... Doris Stock, Virginia Tech

ACUTA's Strategic Planning Process................................... Tamara Closs, ACUTA President, Georgetown Univ.

Tech Talk ................................. Kevin Tanzillo, Dux Public Relations

Junk Faxes: FCC and/or Congress Poised to Provide Relief?............................... John J. Smith, Attorney

DC Update............................ Whitney Johnson, Retired, Northern Michigan Univ.

ACUTA Web Tip.................... Aaron Fuehrer, ACUTA Computer Services Manager

Welcome New Members

Peer Review Of Teaching Project: Tiaa-Cref Hesburgh Award Application, Paul Savory, Amy M. Goodburn, Amy Nelson Burnett

Industrial and Management Systems Engineering: Reports

The TIAA-CREF Hesburgh Award recognizes exceptional faculty development programs designed to enhance undergraduate teaching and learning. This award is given each year to a program judged to have best met the three award criteria: significance of the program to higher education; appropriate program rationale; and successful results and impact on undergraduate teaching and student learning. in 2005, the Peer Review of Teaching Project at the University of Nebraska-Lincoln was awarded a TIAA-CREF Theodore M. Hesburgh Award Certificate of Excellence in recognition of it being an exceptional faculty development program designed to enhance undergraduate student achievement.

Haemophilic Factors Produced By Transgenic Livestock: Abundance That Can Enable Alternative Therapies Worldwide, Kevin E. Van Cott, Paul E. Monahan, Timothy C. Nichols, William H. Velander

Papers in Biotechnology

Haemophilia replacement factors, both plasma-derived and recombinant, are in relatively short supply and are high-cost products. This has stymied the study and development of alternative methods of administration of haemophilia therapy even in the most economically advanced countries, owing to the large amounts of material needed because bioabsorption and bioavailability of haemophilic factors can be less than 10% when using non-intravenous routes of delivery. There is therefore a need to increase access to therapy worldwide by decreasing the cost and increasing the abundance so that therapy can be achieved through simplified, alternative delivery methods. Transgenic livestock have been used to …

Production And Purification Of A Chimeric Monoclonal Antibody Against Botulinum Neurotoxin Serotype A , Mark C. Mowry, Michael Meagher Lead Investigator, Leonard Smith, Anuradha Subramanian

Papers in Biotechnology

Production of recombinant antibodies against botulinum neurotoxin is necessary for the development of a post-exposure treatment. CHO-DG44 cells were transfected with a plasmid encoding the light and heavy chains of a chimeric monoclonal antibody (S25) against botulism neurotoxin serotype A. Stable cell lines were obtained by dilution cloning and clones were shown to produce nearly equivalent levels of light and heavy chain antibody by an enzyme-linked immunosorbent assay (ELISA). In suspension culture, cells produced 35 μg/ml of chimeric antibody after 6 days, corresponding to a specific antibody productivity of 3.1 pg/cell/day. A method for the harvest and recovery of an …

Science For Stewardship: Multidisciplinary Research On Uss Arizona, Matthew A. Russell, Larry E. Murphy, Donald L. Johnson, Timothy J. Foecke, Pamela J. Morris, Raphy Mitchell

Department of Mechanical and Materials Engineering: Faculty Publications

The National Park Service’s Submerged Resources Center and USS Arizona Memorial are conducting and coordinating research directed at understanding the nature and rate of natural processes affecting the deterioration of the USS Arizona in Pearl Harbor, Hawaii. The USS Arizona Preservation Project is designed to be multi-year, interdisciplinary and cumulative, with each element contributing to developing an overall management strategy designed to minimize environmental hazard from fuel oil release and provide the basic research required to make informed management decisions for long-term preservation. The primary project focus is toward acquiring requisite data for understanding the complex corrosion and deterioration processes …

An In Situ Cell For Characterization Of Solids By Soft X-Ray Absorption, Ian J. Drake, Teris C. N. Liu, Mary Gilles, Tolek Tyliszczak, A. L. D. Kilcoyne, David K. Shuh, Richard A. Mathies, Alexis T. Bell

US Department of Energy Publications

A cell has been designed and fabricated for in situ characterization of catalysts and environmental materials using soft x-ray absorption spectroscopy and spectromicroscopy at photon energies above 250 eV. “Lab-on-a-chip” technologies were used to fabricate the cell on a glass wafer. The sample compartment is 1.0 mm in diameter and has a gas path length of 0.8 mm to minimize x-ray absorption in the gas phase. The sample compartment can be heated to 533 K by an Al resistive heater and gas flows up to 5.0 cm³ min⁻¹ can be supplied to the sample compartment through microchannels. The …

Chemical/Mechanical Analyses Of Anhydride-Cured Thermosetting Epoxys: Dgeba/Nma/Bdma, Wei Chian, Delmar C. Timm

Papers in Molecular Chemistry

The chemical state of cure in a thermosetting resin was used to predict the resin’s equilibrium modulus. High performance liquid chromatography analyses of the sol fraction yielded molar dynamics for monomeric, oligomeric, and polymeric molecules. Their population density distributions were compared with theoretical predictions based on a chain-growth polymerization mechanism. The resulting chemical estimates of the state of cure were integrated into calculations yielding concentrations of network structures within the gel that contribute to the density of elastically active strands and junctions. The theory of rubber elasticity was then used to predict the equilibrium modulus. Measurements incorporated dynamic mechanical analysis. …

Kinetic Reaction Analysis Of An Anhydride-Cured Thermoplastic Ep-Oxy:Pge/Nma/Bdma, Wei Chian, Delmar C. Timm

Papers in Molecular Chemistry

A comprehensive reaction analysis of a linear epoxy resin cured with an anhydride was performed to evaluate the reaction rate expressions. Monomers included phenyl glycidyl ether and methyl- 5-norbornene-2,3-dicarboxylic anhydride or nadic methyl anhydride; the catalyst was N,N-dimethylbenzylamine; the initiator was n-propanol. Emphasis was initially placed on the molar dynamics of monomeric and oligomeric molecules. Molecular fractionations were achieved using reversed phase, high performance liquid chromatography. Chemical reaction rate constants were examined as a function of degree of polym-erization. For the chain-initiated polymerization, the initiation rate constant was observed to be approximately 3 times greater than the propagation constant associated …

Optical Properties Of SioX Nanostructured Films By Pulsed-Laser Deposition At Different Substrate Temperatures, X. Y. Chen, Yongfeng Lu, Y. H. Wu, B. J. Cho, W. D. Song, D. Y. Dai

Department of Electrical and Computer Engineering: Faculty Publications

Silicon oxide sSiO_xd nanostructured films have been formed by pulsed-laser deposition of Si in oxygen at different substrate temperatures, in order to study the structures and optical properties related to quantum confinement effects. After laser ablation, the single-crystal Si(100) target is converted to a polycrystal structure and shows weak photoluminescence (PL). The as-deposited SiO_x nanostructured films show large particles (i.e., droplets) on a uniform background film. The droplets with weak PL emission have the same high crystallinity as the Si(100) target. Strong PL is observed from the amorphouslike background films rather than from the crystalline droplets. As …

Optical Modeling Of Iridium Thin Film Erosion Under Oxygen Plasma Exposure*, Li Yan, John A. Woollam

Department of Electrical and Computer Engineering: Faculty Publications

This work is motivated by interest in use of iridium metal films in the space environment. Optical metrology is a sensitive tool for study of film roughness, optical constants, and microstructural properties. In the present paper, in situ spectroscopic ellipsometry is applied to monitor oxygen plasma etching of films of iridium/chromium on fused silica substrates, using an electron cyclotron resonance plasma source. Optical modeling allows for a fundamental understanding of the plasma etching mechanism. Analysis of spectroscopic psi and delta data at selected time slices suggests the iridium film is etched away gradually upon plasma irradiation, while showing no signs …

Acuta Enews September 2004, Vol. 33, No. 9

ACUTA Newsletters

ln This lssue

ACUTA Joins lntemet2

From ACUTA Headquarters...................... Jeri Semer, CAE, Executive Director

Board Report................................ Carmine Piscopo, Providence College, ACUTA Secretary/Treasurer

Looking Back at the 33rd Annual Conference

So Many Winners....................... Such Nice Prizes

The University of Texas at Austin Unveils UTOPIA

Tech Talk....................... Kevin Tanzilo, Dux Public Relations

DC Update.................. Whitney Johnson, Retired, Northem Michigan Univ.

ACUTA Members Sites to See

Peer Review Of Teaching Project: Survey Of Project Participants, Paul Savory, Amy M. Goodburn, Amy Nelson Burnett

Industrial and Management Systems Engineering: Reports

In planning for the future of the Peer Review of Teaching project, we performed a survey of to collect faculty participant feedback on their experience in the project (i.e., writing a course portfolio, possibly having it externally reviewed) and the impact that the experience has had on their teaching. While each of the partner campuses (University of Nebraska-Lincoln, University of Michigan, Kansas State, Texas A&M, Indiana – Bloomington, and University of Kansas) have shaped the project experience differently for campus participants, we sought feedback from participants of all the project partners to get an overall assessment of the project.

Dynamic Testing Of Wooden Guardrail Posts - White And Red Pine Species Equivalency Study, John R. Rohde, Jason A. Hascall, Karla A. Polivka, Dean L. Sicking, Ronald K. Faller

Nebraska Department of Transportation: Research Reports

No abstract provided.

Developments Of The Midwest Guardrail System For Standard And Reduced Post Spacing And In Combination With Curbs, Karla A. Polivka, Dean L. Sicking, John R. Rohde, Robert W. Bielenberg M.S.C.E., E.I.T., Ronald K. Faller, John D. Reid, James C. Holloway, Beau D. Kuipers

Nebraska Department of Transportation: Research Reports

No abstract provided.

First-Principles Study Of Adsorption Of Methanethiol On Co(0001), Ligen Wang, Evgeny Y. Tsymbal, Sitaram Jaswal

Materials Research Science and Engineering Center: Faculty Publications

Investigation of the resident site and the adsorption phase structure of thiolates is of fundamental importance for understanding the formation of self-assembled organic monolayers on metal substrate surfaces. In the present study, we have investigated adsorption of methanethiol, CH₃SH, on the ferromagnetic Co (0001) surface using density functional theory calculations.We find that the dissociative adsorption of CH₃SH forming an adsorbed methylthiolate (CH₃S) and an adsorbed H atom is energetically favorable, and that the CH₃S molecule adsorbed at the threefold fcc and hcp hollow sites is most stable. The adsorption energy at the …

Laser-Assisted Nanoscale Deposition Of Diamond-Like Carbon Films On Tungsten Tips, J. Shi, Yongfeng Lu, R. S. Cherukuri, K. K. Mendu, D. W. Doerr, Dennis R. Alexander, L. P. Li, X. Y. Chen

Department of Electrical and Computer Engineering: Faculty Publications

Diamond-like carbon (DLC) films were deposited on tungsten tips under KrF excimer laser irradiation in benzene solution. The deposition process was found to be highly dependent on tip sharpness. Tips with larger curvature radii and smaller aspect ratios could not be coated with DLC films under the same condition as that for sharp tips. Raman spectra showed that more sp³ tetrahedral structures were present in the DLC films on a tip with a smaller curvature radius. Simulation results showed that the tip sharpness dependent local optical enhancement played an important role in the DLC deposition process. An optical field …

Acuta Enews August 2004, Vol. 33, No. 8

ACUTA Newsletters

In This lssue

ACUTA Board & Committee Changes.................. Tamaro Closs, Georgetown Univ., ACUTA President-Elect

Tech Talk........................... Kevin Tanzillo, Dux Public Relations

LAN Cabling-When Too Much Bandwidth ls Never Enough . Aref Baddar, NextGen/ General Cable

DC Update..................... Whitney Johnson, Retired, Northern Michigan Univ.

Meet Amy White, ACUTAs New Accounting & Administrative Assistant

Welcome New Members

The Effect Of Heterogeneity On Plane Wave Propagation Through Layered Composites, X. Chen, Namas Chandra

Department of Mechanical and Materials Engineering: Faculty Publications

When laminated composites are subjected to impact loading, the material response is critically determined by the interactions of multiple waves generated at the laminate interfaces. Due to the high complexity arising from the architectural details of composites, layered heterogeneous materials have been studied as the model system to understand the impact behavior of engineering composites. Previously, the present authors have developed an analytical solution to the problem of plate impact of layered systems; plate impact test is a standard boundary value problem used to study high velocity impact behavior both in the elastic and shock wave regimes. In this paper, …

Determination Of Traffic Responsive Plan Selection Factors And Thresholds Using Artificial Neural Networks, Anuj Sharma

Department of Civil and Environmental Engineering: Faculty Publications

Traffic congestion has become a menace to civilized society. It degrades air quality, jeopardizes safety and causes delay. Traffic congestion can be alleviated by providing an effective traffic control signal system. Closed-loop traffic control systems are an example of such a system.

Closed-loop traffic control systems can be operated primarily in either of two modes: Time of Day Mode (TOD) or Traffic Responsive Plan Selection Mode (TRPS). TRPS mode, if properly configured, can easily handle time independent variation in traffic volumes. It can also reduce the effect of timing plan aging. Despite these advantages, TRPS mode is not used as …

Odor, H2S And Nh3 Emissions From Phototrophic And Non-Phototrophic Anaerobic Swine Lagoons, Jason Byler, Dennis D. Schulte, Richard K. Koelsch

Department of Biological Systems Engineering: Conference Presentations and White Papers

Odor, ammonia and hydrogen sulfide emission data were collected from three phototrophic and three non-phototrophic anaerobic swine lagoons in eastern Nebraska from May 27th to June 18th (late spring) and from July 7th to August 13th (summer). The greatest odor, hydrogen sulfide and ammonia emission rates were from non-phototrophic lagoons during late spring (24.5 OU m^-2 s^-1, 3.2 μg-H₂S m^-2 s^-1, 34.9 kg NH₃-N ha^-1 d^-1, respectively). Non-phototrophic lagoon odor, ammonia and hydrogen sulfide emission rates were much higher in late spring than summer (24.5 vs. 4.8 …

Field-Controlled Domain-Wall Resistance In Magnetic Nanojunctions, John D. Burton, Arti Kashyap, Mikhail Ye. Zhuravlev, Ralph Skomski, Evgeny Y. Tsymbal, Sitaram Jaswal, O.N. Mryasov, R.W. Chantrell

Materials Research Science and Engineering Center: Faculty Publications

The electrical resistance of a constrained domain wall in a nanojunction is investigated using micromagnetic modeling and ballistic conductance calculations. The nanojunction represents two ferromagnetic electrodes connected by a ferromagnetic wire of 10 nm in length and of a few nanometers in cross section. We find that the anisotropy of the electrodes favors a localization of the domain wall within the constriction (wire) revealing a positive domain-wall resistance. An applied magnetic field moves the domain wall toward one of the electrodes and reduces its width. This compression of the domain wall leads to a sizeable enhancement of the domain-wall resistance.

L10 Ordered Fept:C Composite Films With (001) Texture, M. L. Yan, Renat F. Sabiryanov, Yinfan Xu, Xingzhong Li, David J. Sellmyer

Materials Research Science and Engineering Center: Faculty Publications

Highly textured (001) FePt:C nanocomposite thin films, deposited directly on thermally oxidized Si wafers, are obtained by multilayer deposition plus subsequent thermal annealing. Nanostructures, crystalline orientations, interactions, and magnetic properties are investigated by transmission electron microscopy (TEM), X-ray diffraction (XRD), magnetic force microscopy, and magnetic measurements. The formation of the ordered L1₀ phase is confirmed by XRD, and only visible (00 ) peaks indicate a high degree of the (001) texture. TEM observation reveals that FePt grains are embedded in the C matrix and appear to be well isolated.

Nanostructure And Magnetic Properties Of Fept :C Cluster Films, Yinfan Xu, M. L. Yan, David J. Sellmyer

Materials Research Science and Engineering Center: Faculty Publications

Magnetic properties and nanostructure of FePt : C cluster-deposited films with C volume fraction of 7%, 14%, 33%, and 45% have been studied. As-deposited FePt : C films were prepared by a multilayer method in which FePt layers were deposited from a cluster source employing a gas-aggregation technique and C layers from a normal sputtering gun. In the as-deposited films, FePt clusters with fcc structure are embedded in the C matrix. The high anisotropy FePt L1₀ cluster structure was realized in the films via post-deposition annealing and the nanostructure of the films was observed by high-resolution transmission electron microscope …

The Effect Of Transition Metal Additions On The Microstructure And Properties Of Nanocomposite Pr–Fe–B Permanent Magnets, Jeffrey E. Shield, Yi Liu, R. Marr, Z. Chen, Baomin Ma

Materials Research Science and Engineering Center: Faculty Publications

Permanent magnets with the general composition Pr₉ (Fe_0.95Co_0.05)_85.5M_0.5B₅, where M denotes a transition metal, have been produced by melt spinning. The effect on the microstructure and magnetic properties of eight different alloying elements has been examined. The grain size and distribution have been correlated to the maximum energy product obtained. The grain size of the Pr₉ (Fe_0.95Co_0.05) _85.5B₅ control alloy was determined to be 17.5 nm, and it was found that the grain size was not significantly reduced compared to the control …

Acuta Enews July 2004, Vol. 33, No. 7

ACUTA Newsletters

In This lssue

Meet the Board for 2004-05

From ACUTA Headquarters.................... Jeri A. Semer, CAE, Executive Director

Tech Talk......................... Kevin Tanzillo, Dux Public Relations

DC Update..................... Whitney Johnson, Retired, Northern Michigan Univ.

Recapturing Long-Distance Revenues..................... Mark Allen, MobilSphere

2005 ACUTA Seminar Topics Announced

Board Report................................. Carmine Piscopo, Providence College, ACUTA Secretory/Treasurer

Welcome New Members

Conductive Concrete For Bridge Deck Deicing And Anti-Icing, Christopher Y. Tuan

Nebraska Department of Transportation: Research Reports

No abstract provided.