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Preface, Purdue Road School Feb 1995

Preface, Purdue Road School

Purdue Road School

No abstract provided.


81st Purdue Road School Research And New Technologies, Barry K. Partridge Feb 1995

81st Purdue Road School Research And New Technologies, Barry K. Partridge

Purdue Road School

No abstract provided.


Crumb Rubber Modified Asphalt Grant, Julie L. Rhodes Feb 1995

Crumb Rubber Modified Asphalt Grant, Julie L. Rhodes

Purdue Road School

No abstract provided.


Use Of Coal Combusion By-Products, Robert Davis Jr., Athar Khan, Thomas Cofer Feb 1995

Use Of Coal Combusion By-Products, Robert Davis Jr., Athar Khan, Thomas Cofer

Purdue Road School

No abstract provided.


Pavement Management Requirements For The Local Governments In Indiana, Indiana Pavement Management Advisory Committee, John Weaver Feb 1995

Pavement Management Requirements For The Local Governments In Indiana, Indiana Pavement Management Advisory Committee, John Weaver

Purdue Road School

No abstract provided.


Indot - Fhwa - Herpicc Technology Transfer For Improved Implementation, Tommy E. Nantung, Donald G. Johnson Feb 1995

Indot - Fhwa - Herpicc Technology Transfer For Improved Implementation, Tommy E. Nantung, Donald G. Johnson

Purdue Road School

No abstract provided.


Indiana's Intermodal Management System, Stephen C. Smith Feb 1995

Indiana's Intermodal Management System, Stephen C. Smith

Purdue Road School

No abstract provided.


Front Matter, Purdue Road School Feb 1995

Front Matter, Purdue Road School

Purdue Road School

No abstract provided.


Hot In-Place Recycling Of Asphalt Pavement, Michael T. Vietti Feb 1995

Hot In-Place Recycling Of Asphalt Pavement, Michael T. Vietti

Purdue Road School

No abstract provided.


A Summary Of Highway Revenues, Expenses, And Distributions: 1987 Through 1994, Herpicc Feb 1995

A Summary Of Highway Revenues, Expenses, And Distributions: 1987 Through 1994, Herpicc

Indiana Local Technical Assistance Program (LTAP) Publications

This report shows the history of receipts, expenses and distributions of revenues that provide funding to all local governments for highway, road and street work.


Concurrent And Fail-Safe Replicated Simulations On Heterogeneous Networks: An Introduction To Eclipse, Felipe Knop, Edward Mascarenhas, Vernon J. Rego, V. S. Sunderam Feb 1995

Concurrent And Fail-Safe Replicated Simulations On Heterogeneous Networks: An Introduction To Eclipse, Felipe Knop, Edward Mascarenhas, Vernon J. Rego, V. S. Sunderam

Department of Computer Science Technical Reports

No abstract provided.


A Software Architecture To Support Misuse Intrusion Detection, Sandeep Kumar, Eugene H. Spafford Feb 1995

A Software Architecture To Support Misuse Intrusion Detection, Sandeep Kumar, Eugene H. Spafford

Department of Computer Science Technical Reports

No abstract provided.


On The Street: A Survey Of Atg Subscribers - What Were They Up To In 1994?, Barbara C. Dean, Eamon T. Fennessy, Kathy Miraglia Catholic University Of America Feb 1995

On The Street: A Survey Of Atg Subscribers - What Were They Up To In 1994?, Barbara C. Dean, Eamon T. Fennessy, Kathy Miraglia Catholic University Of America

Against the Grain

No abstract provided.


Library Profile: Tufts University, Bonnie Postlethwaite, Barbara Dean Feb 1995

Library Profile: Tufts University, Bonnie Postlethwaite, Barbara Dean

Against the Grain

No abstract provided.


Rethinking The Wac/Writing Center Connection, Michael A. Pemberton Jan 1995

Rethinking The Wac/Writing Center Connection, Michael A. Pemberton

The Writing Center Journal

No abstract provided.


From The Editor, Dave Healy Jan 1995

From The Editor, Dave Healy

The Writing Center Journal

No abstract provided.


Letters (1) Jan 1995

Letters (1)

The Writing Center Journal

No abstract provided.


Sovereignty Conditions And Governance Modes: An Option Theory Approach, John A. Carlson Jan 1995

Sovereignty Conditions And Governance Modes: An Option Theory Approach, John A. Carlson

Purdue CIBER Working Papers

This study extends previous work which has examined governance decisions using option theory. In particular, it evaluates the contribution of option theory in both domestic and international environments. Empirical results from a multinomial logit model suggest that the influence of option value differs across segments.


Whither Flat Panel Displays?, Kala Krishna, Marie Thursby Jan 1995

Whither Flat Panel Displays?, Kala Krishna, Marie Thursby

Purdue CIBER Working Papers

The paper examines possible consequences of subsidies to R&D and to volume production proposed under the Clinton administration's flat panel display initiative. We do this in the context of a model in which firms behave competitively in the short run, while realizing that their choices of capacity and yield-improving R&D in the medium and long run will affect market price.


Can Barriers To Trade Make A Differential?, Jon D. Haveman Jan 1995

Can Barriers To Trade Make A Differential?, Jon D. Haveman

Purdue CIBER Working Papers

Within the purview of economics, there are a number of phenomena that remain unexplained. One such phenomenon is the existence of inter-industry wage differentials; differences in wages paid to observationally equivalent workers. This paper investigates the link between the degree of international competition in an industry and the premium paid to workers in that industry. The rationale for this connection lies in the hypothesis that the source of the observed wage premium arises from the sharing of rents with workers in profitable industries. International competition serves to reduce the market power of firms in the industry reducing the existence of …


The Uniform Soybean Tests: Northern Region 1995, J. R. Wilcox Jan 1995

The Uniform Soybean Tests: Northern Region 1995, J. R. Wilcox

Uniform Soybean Tests Northern Region

No abstract provided.


1995 Directory Of Indiana State, County, City And Town Officials Responsible For Road And Street Work, Herpicc Jan 1995

1995 Directory Of Indiana State, County, City And Town Officials Responsible For Road And Street Work, Herpicc

Indiana Local Technical Assistance Program (LTAP) Directory

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


Theoretically Optimal Duty Cycles For Chest And Abdominal Compression During External Cardiopulmonary Resuscitation, Charles F. Babbs, Keir Thelander Jan 1995

Theoretically Optimal Duty Cycles For Chest And Abdominal Compression During External Cardiopulmonary Resuscitation, Charles F. Babbs, Keir Thelander

Weldon School of Biomedical Engineering Faculty Publications

Objective: To use an electronic model of human circulation to compare the hemodynamic effects of different durations of chest compression during external CPR, both with, and without interposed abdominal compression (IAC). Methods: An electrical analog model of human circulation was studied on digital computer workstations using SPICE, a general-purpose circuit simulation program. In the model the heart and blood vessels were represented as resistive-capacitive networks, pressures as voltages, blood flow as electric current, blood inertia as inductance, and cardiac and venous valves as diodes. External pressurization of the heart and great vessels, as would occur in IAC-CPR, was simulated by …


On The Carrier Mobility In Forward-Biased Semiconductor Barriers, Mark S. Lundstrom, Shin'ichi Tanaka Jan 1995

On The Carrier Mobility In Forward-Biased Semiconductor Barriers, Mark S. Lundstrom, Shin'ichi Tanaka

Department of Electrical and Computer Engineering Faculty Publications

A simple one-speed solution to the Boltzmann equation is used to evaluate the mobility and diffusion coefficient for carriers in forward-biased semiconductor barriers. The analysis shows that although the average kinetic energy of carriers remains near thermal equilibrium, the mobility and diffusion coefficient are strongly reduced by the built-in field. Conventional macroscopic transport equations, which treat the carrier mobility and diffusion coefficient as single valued functions of the kinetic energy will improperly treat transport in forward-biased barriers. The results are important for the careful analysis of metal–semiconductor and heterojunction diodes.


On The Carrier Mobility In Forward-Biased Semiconductor Barriers, Mark S. Lundstrom, S. I. Tanaka Jan 1995

On The Carrier Mobility In Forward-Biased Semiconductor Barriers, Mark S. Lundstrom, S. I. Tanaka

Department of Electrical and Computer Engineering Faculty Publications

A simple one-speed solution to the Boltzmann equation is used to evaluate the mobility and diffusion coefficient for carriers in forward-biased semiconductor barriers. The analysis shows that although the average kinetic energy of carriers remains near thermal equilibrium, the mobility and diffusion coefficient are strongly reduced by the built-in field. Conventional macroscopic transport equations, which treat the carrier mobility and diffusion coefficient as single valued functions of the kinetic energy will improperly treat transport in forward-biased barriers. The results are important for the careful analysis of metal-semiconductor and heterojunction diodes.© 1995 American Institute of Physics.


Very Low Resistance Nonalloyed Ohmic Contacts Using Low-Temperature Molecular Beam Epitaxy Of Gaas, M. P. Patkar, T. P. Chin, J. M. Woodall, Mark S. Lundstrom, Michael R. Melloch Jan 1995

Very Low Resistance Nonalloyed Ohmic Contacts Using Low-Temperature Molecular Beam Epitaxy Of Gaas, M. P. Patkar, T. P. Chin, J. M. Woodall, Mark S. Lundstrom, Michael R. Melloch

Department of Electrical and Computer Engineering Faculty Publications

Ex situ nonalloyed ohmic contacts were made to n- and p‐type GaAs using low‐temperature molecular beam epitaxy. For n‐type GaAs, Ag, and Ti/Au nonalloyed contacts displayed specific contact resistitivities of mid 10-7 ohm cm2. For p‐type GaAs, nonalloyed Ti/Au contacts with specific contact resistivities of about 10-7 ohm cm2 were obtained.


Transition Matrix Approach For Monte Carlo Simulation Of Coupled Electron/Phonon/Photon Dynamics, Muhammad A. Alam, Mark S. Lundstrom Jan 1995

Transition Matrix Approach For Monte Carlo Simulation Of Coupled Electron/Phonon/Photon Dynamics, Muhammad A. Alam, Mark S. Lundstrom

Department of Electrical and Computer Engineering Faculty Publications

A new approach for simulating the dynamics of electrons, phonons, and photons is described. The technique provides a Monte Carlo simulation of particle dynamics without the statistical noise associated with direct Monte Carlo simulation, treats physical phenomena with a wide range of time scales, and has a good computational efficiency. A transition matrix is first precomputed by direct Monte Carlo simulation. Particle populations are then updated at regular time steps by simple matrix multiplication while correcting for nonlinear effects such as carrier–carrier scattering, band filling, hot phonons, etc. The technique is well suited to studies of quantum well laser devices …


Temperature Dependence Of Minority And Majority Carrier Mobilities In Degenerately Doped Gaas, Michael L. Lovejoy, Michael R. Melloch, Mark S. Lundstrom Jan 1995

Temperature Dependence Of Minority And Majority Carrier Mobilities In Degenerately Doped Gaas, Michael L. Lovejoy, Michael R. Melloch, Mark S. Lundstrom

Department of Electrical and Computer Engineering Faculty Publications

Measured minority and majority carrier mobility temperature dependencies in heavily doped n- and p-GaAs are compared. Majority carrier mobilities in heavily doped GaAs are essentially temperature ~T! independent while minority carrier mobilities exhibit a roughly 1/T dependence. Majority carrier freezeout, which reduces both majority–minority carrier and ionized impurity scattering, is shown not to be responsible for the 1/T minority carrier mobility dependence. The difference in minority and majority carrier mobility T dependencies is explained in terms of the increased degree of degeneracy of majority carriers with decreased temperature, which decreases majority–minority carrier scattering.


Characterization Of Photon Recycling In Thin Crystalline Gaas Light Emitting Diodes, M. P. Patkar, M. S. Lundstrom, Michael R. Melloch Jan 1995

Characterization Of Photon Recycling In Thin Crystalline Gaas Light Emitting Diodes, M. P. Patkar, M. S. Lundstrom, Michael R. Melloch

Department of Electrical and Computer Engineering Faculty Publications

Gallium arsenide light emitting diodes (LEDs) were fabricated using molecular beam epitaxial films on GaAs substrates and removed by epitaxial lift-off (ELO). Lifted off devices were then mounted on a Si wafer using a Pd/Au/Cr contact layer, which also served as a back surface reflector. Devices were characterized by electrical and optical measurements, and the results for devices on the GaAs substrate were compared to those for EL0 devices. EL0 LEDs coated with a ZnS/MgF2 antireflection coating exhibited an optical output that was up to six times that of LEDs on GaAs substrates. At the same time, the measured current-voltage …


Preliminary Results Of Deferoxamine And L1 Treatment Of Spinal Cord Ischemia, David G. Reuter, Willis A. Tacker Jr, Charles F. Babbs, Stephen F. Badylak, William D. Voorhees, Peter E. Konrad Jan 1995

Preliminary Results Of Deferoxamine And L1 Treatment Of Spinal Cord Ischemia, David G. Reuter, Willis A. Tacker Jr, Charles F. Babbs, Stephen F. Badylak, William D. Voorhees, Peter E. Konrad

Weldon School of Biomedical Engineering Faculty Publications

No abstract provided.