Digital Commons Network^™

Participation Equality: Measurement Within Collaborative Electronic Environments-A Three Country Study, Roberto W. Zmud, Roberto J. Mejias, Bruce A. Reinig, Isabel M. Martinez-Martinez

Purdue CIBER Working Papers

While the engendering of participation equality is generally viewed as a desirable group process attribute, findings from prior empirical research are both inconsistent and inconclusive regarding the measurement of participation equality within collaborative electronically supported environments. One explanation for this inconsistency lies in the manner in which the “participation equality” construct has been studied and measured. Results of analyses performed across three distinct national cultures utilizing 86 experimental groups and over 660 participants from the United States, Hong Kong and Spain are presented with recommendations for future research involving the participation equality construct. This is a first paper in a …

Gresham's Law Versus Currency Competition, Gabriele Camera, Ben Craig, Christopher J. Waller

Purdue CIBER Working Papers

We develop a dual currency search model where agents can hold currency portfolios to buy goods, and analyze an agent's choice to spend safe dollars or risky home currency for internal trade. We focus on two equilibria: a currency competition equilibrium, in which the 'good' currency (dollars) is spent first and the 'bad' (risky home) currency is kept for later purchases, and a Gresham's Law equilibrium in which agents do the reverse. We prove that for the Gresham's Law equilibrium to prevail, trading frictions and the home currency risk must be small. Otherwise, extensive currency substitution occurs and the currency …

Prandtl-Number Effects And Generalized Correlations For Confined And Submerged Jet Impingement, C. -Y. Li, S V. Garimella

CTRC Research Publications

The influence of fluid thermophysical properties on the heat transfer from confined and submerged impinging jets is experimentally investigated. Results from previous studies at low and high Prandtl numbers (using air and Fluorinert liquid FC-77, respectively) are supplemented by new experiments for an intermediate Prandtl number (using water). Local heat transfer coeficients are obtained from a discrete heat source under axisymmetric confined and submerged jets. The parameter ranges studied include: orifice diameters of 1.59±12.7 mm, turbulent-flow Reynolds numbers of 4000±23 000, and orifice to heat-source spacings of 1±5 jet diameters. Generalized correlations for heat transfer rates are proposed based on …

2001 Directory Of Indiana State, County, City And Town Officials Responsible For Road And Street Work, Indiana Ltap

Indiana Local Technical Assistance Program (LTAP) Directory

Contact information for agency officials and employees responsible for Indiana’s local road infrastructure.

Confrontations And Compromise: Dispute Resolution At A Worker Cooperative Coal Mine, Elizabeth A. Hoffmann

Department of Sociology Faculty Publications

This paper compares dispute-resolution behavior at a large coal mine in South Wales at two times: when the mine was run as a conventional, hierarchical organization by British Coal and, several years later, when it was bought out by the employees and converted into a worker cooperative. Synthesizing themes from law and society, organizational theory, and alternative dispute resolution (ADR) research, I demonstrate how shared ownership, flattened hierarchy, and cooperative ideology impact on disputing behavior. By changing from a hierarchical organization to a worker cooperative, the coal mine increased its level of procedural justice and transformed its dispute-resolution behavior to …

Finite Element Analysis Of Structural Foams Inside A Hollow Steel Tube Under Uni-Axial Compressive Loading, Richa Mann

Electronic Theses and Dissertations

No abstract provided.

Consensus Evidence Evaluation In Resuscitation Research: Analysis Of Type I And Type Ii Errors, Charles F. Babbs

Weldon School of Biomedical Engineering Faculty Publications

Objective: This paper addresses the following statistical question: ‘if genuine improvements in cardiopulmonary resuscitation (CPR) were discovered that doubled the probability of resuscitation success in a series of randomized clinical trials, would they be recognized and incorporated into consensus guidelines?’ Methods: Statistical powers for hypothetical individual clinical trials comparing experimental and control CPR were computed as a function of the study N when the true probabilities for immediate survival, 24 h survival, and discharge survival in the experimental group were twice those in the control group. Next, the binomial distributions describing the numbers of statistically significant studies in a series …

Simulating Quasi-Ballistic Transport In Si Nanotransistors, Kausar Banoo, Jung-Hoon Rhew, Mark S. Lundstrom, Chi-Wang Shu, Joseph W. Jerome

Department of Electrical and Computer Engineering Faculty Publications

Electron transport in model Si nanotransistors is examined by numerical simulation using a hierarchy of simulation methods, from full Boltzmann, to hydrodynamic, energy transport, and drift-diffusion. The on-current of a MOSFET is shown to be limited by transport across a low-field region about one mean-free-path long and located at the beginning of the channel. Commonly used transport models based on simplified solutions of the Boltzmann equation are shown to fail under such conditions. The cause for this failure is related to the neglect of the carriers' drift energy and to the collision-dominated assumptions typically used in the development of simplified …

Local Heat Transfer Distributions In Confined Multiple Air Jet Impingement, S V. Garimella, V. P. Schroeder

CTRC Research Publications

Heat transfer from a discrete heat source to multiple, normally impinging, confined air jets was experimentally investigated. The jets issued from short, square-edged orifices with still-developing velocity profiles on to a foil heat source which produced a constant heat flux. The orifice plate and the surface containing the heat source were mounted opposite each other in a parallel-plates arrangement to effect radial outflow of the spent fluid. The local surface temperature was measured in fine increments over the entire heat source. Experiments were conducted for different jet Reynolds numbers (5000,Re ,20,000), orifice-to-target spacing ~ 0.5,H/d,4! , and multiple-orifice arrangements. The …

Biomechanics Of Heading A Soccer Ball: Implications For Player Safety, Charles F. Babbs

Weldon School of Biomedical Engineering Faculty Publications

To better understand the risk and safety of heading a soccer ball, the author created a set of simple mathematical models based upon Newton’s second law of motion to describe the physics of heading. These models describe the player, the ball, the flight of the ball before impact, the motion of the head and ball during impact, and the effects of all of these upon the intensity and the duration of acceleration of the head. The calculated head accelerations were compared to those during presumably safe daily activities of jumping, dancing, and head nodding and also were related to established …

Bridgman Crystal Growth Of An Alloy With Thermosolutal Convection Under Microgravity Conditions, J. E. Simpson, S V. Garimella, H. C. Degroh Iii, R. Abbaschian

CTRC Research Publications

The solidification of a dilute alloy (bismuth-tin) under Bridgman crystal growth conditions is investigated. Computations are performed in two dimensions with a uniform grid. The simulation includes the species concentration, temperature and flow fields, as well as conduction in the ampoule. Fully transient simulations have been performed, with no simplifying steady state approximations. Results are obtained under microgravity conditions for pure bismuth, and for Bi-0.1 at.% Sn and Bi-1.0 at.% Sn alloys, and compared with experimental results obtained from crystals grown in the microgravity environment of space. For the Bi-1.0 at.% Sn case the results indicate that a secondary convective …

A Finite-Difference Time-Domain Interface For The Design And Simulation Of Microstrip Antennas, Bradford Nelson Baker

Electronic Theses and Dissertations

No abstract provided.

Impact Of Aeration On Maize Weevil (Coleoptera: Curculionidae) Populations In Corn Stored In The Northern United States: Simulation Studies, Frank H. Arthur, James E. Throne, Dirk E. Maier, Michael D. Montross

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Historical weather data were used to divide the northern United States into five climatic zones based on the number of hours below 15.6°C (60°F), which is the approximate lower developmental threshold for the maize weevil, Sitophilus zeamais Motschulsky, during a calendar year. A model for population growth and development of the maize weevil, which is integrated with a bin-cooling model, was used to predict temperature, relative humidity, number of larvae, and number of adults in unaerated and aerated corn during 1 yr of storage. In all zones, predicted temperature profiles in unaerated corn indicate that it would take 2-3 mo …

Examining Images Of Cotton, Cynthia Ray

Electronic Theses and Dissertations

No abstract provided.

Seismic Evaluation Of An Existing Rc Highway Bridge Substructure Using Three Dimensional Computational Simulations And Modal Analysis Of Ambient Vibration Data, Bernard Leblanc

Electronic Theses and Dissertations

No abstract provided.

Uv Curing Of Photoinitiated Resins Used In The Filament Winding Process For Manufacturing Polymeric Composites, Kapil M. Inamdar

Electronic Theses and Dissertations

No abstract provided.

Cracks In Stabilized Base And It's Effect On Structural Behavior, Upendra L. Joshi

Electronic Theses and Dissertations

No abstract provided.

He Saith Among The Trumpets, Ha, Ha And He Smelleth The Battle Afar Off / By Christopher Coulter Stead, Christopher Coulter Stead

Electronic Theses and Dissertations

No abstract provided.

Gis And Distributed Watershed Models Ii, Fred L. Ogden, Jurgen Garbrecht, Paul A. Debarry, Lynn E. Johnson

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

This paper presents representative applications and models that can take advantage of spatially distributed data in a geographic information system (GIS) format for watershed analysis and hydrologic modeling purposes. The intention is to inform hydrologic engineers about the current capabilities of GIS, hydrologic analysis modules, and distributed hydrologic models, and to provide an initial guide on implementing GIS for hydrologic modeling. This paper also discusses key implementation issues for individuals and organizations that are considering making the transition to the use of GIS in hydrology. Widespread use of GIS modules and distributed watershed models is inevitable. The controlling factors are …

Interlaboratory Comparison Of Soil Phosphorus Extracted By Various Soil Test Methods, Peter J.A. Kleinman, A. N. Sharpley, K. Gartley, W. M. Jarrell, S. Kuo, R. G. Menon, R. Myers, K. R. Reddy, E. O. Skogley

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

The widespread use of soil phosphorus (P) data, either in the context of agronomic or environmental management, requires an explicit understanding of potential errors related to soil P testing. This study compares a variety of soil P extraction methods, each performed by 9 separate laboratories on 24 soils from across the United States. Soil clay content ranged from 0 to 47%, pH from 4.2 to 8.6, and Mehlich-3 P concentration from 2 to 205 mg kg^-1. Average interlaboratory coefficients of variation (CVs) ranged from 0.11 to 0.22 for solution extracts (Bray-1 P, Fe-strip P, Mehlich-3 P, and Olsen …

Engineering Division, Marilyn Redmond

Sci-Tech News

No abstract provided.

A Penalty Method For Approximations Of The Stationary Power-Law Stokes Problem, Lew Lefton, Dongming Wei

Mathematics Faculty Publications

We study approximations of the steady state Stokes problem governed by the power-law model for viscous incompressible non-Newtonian flow using the penalty formulation. We establish convergence and find error estimates

Decay Estimates Of Heat Transfer To Melton Polymer Flow In Pipes With Viscous Dissipation, Dongming Wei, Zhenbu Zhang

Mathematics Faculty Publications

In this work, we compare a parabolic equation with an elliptic equation both of which are used in modeling temperature profile of a power-law polymer flow in a semi-infinite straight pipe with circular cross section. We show that both models are well-posed and we derive exponential rates of convergence of the two solutions to the same steady state solution away from the entrance. We also show estimates for difference between the two solutions in terms of physical data.

The Virtual Writing Center: Developing Ethos Through Mailing List Discourse, Diana C. Bell, Mike T. Hubler

The Writing Center Journal

No abstract provided.

"On The Make": Campaign Funding And The Corrupting Of The American Judiciary, David Barnhizer

Catholic University Law Review

No abstract provided.

Uniform Random Number Generation Using Pseudorandom Binary Sequences, Susan Rea

Theses

Random numbers have conventionally been used in a range of applications such as numerical analysis, lotteries and computer simulation and as cryptographic keys. The algorithms used for the production of random numbers are termed pseudorandom, as the numbers produced are not truly random as they emanate from a deterministic periodic source that is they are predictable if a subset of the sequence is known. However, for most applications these pseudorandom number sources are entirely suitable.

For cryptographic key sources, however, the random number sequences must be statistically good and difficult to predict. Linear feedback shift registers are presented in this …

Nebraska Summary 355: Agco Dt225 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 1791: John Deere 9400t Also 9420t 24 Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 1789: John Deere 9200 24 & 12 Speed, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.

Test 1796: Case Ih Stx 275/New Holland Tj 275 Diesel, Nebraska Tractor Test Lab

Nebraska Tractor Tests

No abstract provided.