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The Effect Of Edge Constraints On The Surface Normal Impedance Of Layers Of Elastic Porous Materials, N.-M. Shiau, W. Desmet, J Stuart Bolton Nov 1996

The Effect Of Edge Constraints On The Surface Normal Impedance Of Layers Of Elastic Porous Materials, N.-M. Shiau, W. Desmet, J Stuart Bolton

Publications of the Ray W. Herrick Laboratories

A two-dimensional model for wave propagation in elastic porous materials has been used to investigate the effects of edge constraints on the surface normal impedance of elastic porous materials when placed in standing wave tubes. The elastic porous material model used was based on the Biot theory and takes into account the three wave-types known to propagate within elastic porous materials. Previous work has indicated that the acoustical behavior of typical noise control foams can be very sensitive to small mounting details. Consequently, it is reasonable to expect that the surface normal impedance measured by placing foam in a standing …


Quality Of Service Test By Codec Performance, Shunge Li, Bharat Bhargava, Dawei Wang Nov 1996

Quality Of Service Test By Codec Performance, Shunge Li, Bharat Bhargava, Dawei Wang

Department of Computer Science Technical Reports

No abstract provided.


Pattern Matching Image Compression With Predication Loop: Preliminary Experimental Results, Denis Arnaud, Wojciech Szpankowski Nov 1996

Pattern Matching Image Compression With Predication Loop: Preliminary Experimental Results, Denis Arnaud, Wojciech Szpankowski

Department of Computer Science Technical Reports

No abstract provided.


Scene Change Detection For Video Database Management Systems-A Survey, Haitao Jiang, Abdelsalam (Sumi) Helal, Ahmed K. Elmagarmid, Anupam Joshi Oct 1996

Scene Change Detection For Video Database Management Systems-A Survey, Haitao Jiang, Abdelsalam (Sumi) Helal, Ahmed K. Elmagarmid, Anupam Joshi

Department of Computer Science Technical Reports

No abstract provided.


Image Compression And Signal Classification By Neural Networks And Projection Pursuits, M. Fardanesh, O. K. Ersoy Sep 1996

Image Compression And Signal Classification By Neural Networks And Projection Pursuits, M. Fardanesh, O. K. Ersoy

Department of Electrical and Computer Engineering Technical Reports

In this report, two applications of neural networks are investigated. The first one is low bit rate image compression by using neural networks and projection pursuit. The second one is improving the classification accuracy of neural network classifiers by using unlabeled data. In the first part, a novel approach for low bit rate image coding is presented. The image is compressed by first quadtree segmenting the image into blocks of different sizes based on two activity measures , and then constructing a distinct code for each block by invokin~gth e theory of projection pursuit. The two activity measures used in …


Image Compression And Signal Classification By Neural Networks And Projection Pursuits, M. Fardanesh, O. K. Ersoy Sep 1996

Image Compression And Signal Classification By Neural Networks And Projection Pursuits, M. Fardanesh, O. K. Ersoy

Department of Electrical and Computer Engineering Technical Reports

In this report, two applications of neural networks are investigated. The first one is low bit rate image compression by using neural networks and projection pursuit. The second one is improving the classification accuracy of neural network classifiers by using unlabeled data. In the first part, a novel approach for low bit rate image coding is presented. The image is compressed by first quadtree segmenting the image into blocks of different sizes based on two activity measures , and then constructing a distinct code for each block by invokin~gth e theory of projection pursuit. The two activity measures used in …


Multi-Pass Transmission Policy: An Effective Method Of Transmitting Large Multimedia Objects In The Wide-Area Network, Sheng-Yih Wang, Bharat Bhargava Sep 1996

Multi-Pass Transmission Policy: An Effective Method Of Transmitting Large Multimedia Objects In The Wide-Area Network, Sheng-Yih Wang, Bharat Bhargava

Department of Computer Science Technical Reports

No abstract provided.


On Mobile Systems And Disconnected Browsing Of Distributed Information, Anupam Joshi, Sanjiva Weerawarana, Elias N. Houstis Jun 1996

On Mobile Systems And Disconnected Browsing Of Distributed Information, Anupam Joshi, Sanjiva Weerawarana, Elias N. Houstis

Department of Computer Science Technical Reports

No abstract provided.


The Clam Approach To Multithreaded Communication On Shared-Memory Multiprocessors: Design And Experiments, Joan Carlos Gomez, Edward Mascarenhas, Vernon J. Rego Jun 1996

The Clam Approach To Multithreaded Communication On Shared-Memory Multiprocessors: Design And Experiments, Joan Carlos Gomez, Edward Mascarenhas, Vernon J. Rego

Department of Computer Science Technical Reports

No abstract provided.


A Color-Based Technique For Measuring Visible Loss For Use In Image Data Communication, Melliyal Annamalai, Aurobindo Sundaram, Bharat Bhargava May 1996

A Color-Based Technique For Measuring Visible Loss For Use In Image Data Communication, Melliyal Annamalai, Aurobindo Sundaram, Bharat Bhargava

Department of Computer Science Technical Reports

No abstract provided.


Purdue University's Www Gpo Access Gateway: Origins And Evolution, Bert Chapman Apr 1996

Purdue University's Www Gpo Access Gateway: Origins And Evolution, Bert Chapman

Libraries Research Publications

No abstract provided.


Computational Separation Of Bulk And Surface Recombination Using Contactless Photoconductive Decay, Frederick P. Giles, Richard J. Schwartz Apr 1996

Computational Separation Of Bulk And Surface Recombination Using Contactless Photoconductive Decay, Frederick P. Giles, Richard J. Schwartz

Department of Electrical and Computer Engineering Technical Reports

A novel, computational approach to distinguishing between bulk and surface recombination in crystalline silicon is presented. The Photoconductive Decay technique, applied with a probe of sufficiently long wavelength, senses no informiation about carrier diffusion or distributions in samples, thus isolating carrier recombination as the sole cause of its decay signal. If the recombination and transport parameters of' a sample remain cor~standt uring the decay, the information content and collective properties of the decay paIameters allow them to be solved simultaneously to produce unique values for the bulk lifetime and surface recombination velocities of the measurement sample. The method is rapid …


A Secure Message Broadcasting System (Smbs), Mark Crosbie, Ivan Krsul, Steve Lodin, Eugene H. Spafford Feb 1996

A Secure Message Broadcasting System (Smbs), Mark Crosbie, Ivan Krsul, Steve Lodin, Eugene H. Spafford

Department of Computer Science Technical Reports

No abstract provided.


On Tailoring Thread Schedules In Protocol Design: Experimental Results, Juan Carlos Gomez, Vernon J. Rego, V. S. Sunderam Feb 1996

On Tailoring Thread Schedules In Protocol Design: Experimental Results, Juan Carlos Gomez, Vernon J. Rego, V. S. Sunderam

Department of Computer Science Technical Reports

No abstract provided.


Wildflowers For Indiana Highways, Michael N. Dana, Ricky Darrell Kemery, Brian S. Boszor Jan 1996

Wildflowers For Indiana Highways, Michael N. Dana, Ricky Darrell Kemery, Brian S. Boszor

JTRP Technical Reports

Questions concerning wildflower usage on Indiana highway rights-of-way were investigated. Native prairie wildflower seed quality was found to be highly variable among supply companies, species, and years. Less variability was found among “garden” wildflower species and suppliers. Direct seeding was found to be successful with six species of native prairie forbs: Butterfly Milkweed Asclepiads tuberose, Wild Bergamot Monarda fistulosa, New England Aster Aster novae-angliae, Pale-purple Coneflower Echinacea pallida, Gray-headed Coneflower Ratibido pinnota, Ironweed Vernonia fasciculosa. Five species of “garden” wildflowers performed well: Common Cosmos Cosmos bipinnatus, Yellow Cosmos Cosmos sulphureus, Cornflower Centaurea cyanus, Goldenwave Coreopsis sincioria, Black-eyed Susan Rudbeckia hiria. …


Bioremediation Treatability Studies For Soils Containing Herbicides, Chemicals, And Petroleum Products, Loring F. Nies, Matthew B. Mesarch Jan 1996

Bioremediation Treatability Studies For Soils Containing Herbicides, Chemicals, And Petroleum Products, Loring F. Nies, Matthew B. Mesarch

JTRP Technical Reports

Leaking underground storage tanks are widespread throughout the United States. It is estimated that there are 1.4 million underground gasoline storage tanks in the United States, with as many as 75,000 to 100,000 that may be leaking. In Indiana alone, more than 3,500 of the 15,000 registered underground storage tank facilities have reported leaks. Conventional remediation methods often involve pump-and-treat schemes for contaminated water, and excavation and burial of contaminated soil in hazardous waste landfills. These methods increase the risk of exposure to pollutants for workers and local residents. Furthermore, these methods merely involve the transfer of pollutants from one …


Indot Constructability Multimedia System Working Module, Bob G. Mccullouch Jan 1996

Indot Constructability Multimedia System Working Module, Bob G. Mccullouch

JTRP Technical Reports

Constructability can be defined as incorporating knowledge into the design product or designing so it is easier to construct. Transportation facilities have suffered from this problem, with INDOT no exception. The most important feature of any constructability program is capturing field examples, commonly referred to as “lessons learned,” and archiving and retrieving them into future projects that are either similar or have similar conditions in order to eliminate or prevent the same mistakes from occurring again. A mechanism or tool that can perform this task would be a valuable asset for INDOT. A previous JHRP project title “An INDOT Lessons …


Antecedents Of Expatriate Spouse Adjustment: An Analysis Of Japanese Spouses In The United States, Riki Takeuchi, John Hannon Jan 1996

Antecedents Of Expatriate Spouse Adjustment: An Analysis Of Japanese Spouses In The United States, Riki Takeuchi, John Hannon

Purdue CIBER Working Papers

This is one of the first studies investigating factors related to the adjustment of expatriate spouses. The study extends, both conceptually and methodologically, the limited research on spouse adjustment by testing the effects of language profciency and educational level on adjustment. Furthermore, it is the first study to survey non US respondents in their native language. In the end, we found that time since arrival, educational level, language proficiency, and willingness to communicate are directly related to spouse adjustment.


Simulation And Parametric Analysis Of The Suction Valve And Muffler Of A Small Reciprocating Compressor, K. M. Ignatiev, B. B. Chrustalev, M. M. Perevozchikov, V. B. Zdalinsky Jan 1996

Simulation And Parametric Analysis Of The Suction Valve And Muffler Of A Small Reciprocating Compressor, K. M. Ignatiev, B. B. Chrustalev, M. M. Perevozchikov, V. B. Zdalinsky

International Compressor Engineering Conference

No abstract provided.


Using International Human Resource Management To Inform The Business Intelligence Function, John M. Hannon Jan 1996

Using International Human Resource Management To Inform The Business Intelligence Function, John M. Hannon

Purdue CIBER Working Papers

No abstract provided.


Phase Equilibrium In Oil-Refrigerant Solution R 134a / Sw22, V. V. Zhidkov, V. P. Zhelezny, P. V. Zhelezny Jan 1996

Phase Equilibrium In Oil-Refrigerant Solution R 134a / Sw22, V. V. Zhidkov, V. P. Zhelezny, P. V. Zhelezny

International Refrigeration and Air Conditioning Conference

No abstract provided.


Web Intelligent Query - Disconnected Web Browsing Using Cooperative Techniques, Ramanathan Kavasseri, Todd Keating, Michael Wittman, Anupam Joshi, Sanjiva Weerawarana Jan 1996

Web Intelligent Query - Disconnected Web Browsing Using Cooperative Techniques, Ramanathan Kavasseri, Todd Keating, Michael Wittman, Anupam Joshi, Sanjiva Weerawarana

Department of Computer Science Technical Reports

No abstract provided.


Prediction Of The Noise Radiation Of Hermetic Compressors Utilizing The Compressor Simulation Program And Femibem Analyses, W. Zhou, J. Kim Jan 1996

Prediction Of The Noise Radiation Of Hermetic Compressors Utilizing The Compressor Simulation Program And Femibem Analyses, W. Zhou, J. Kim

International Compressor Engineering Conference

No abstract provided.


Heat Exchange In The Working Chamber Of A Multivane Compressor, Z. Gnutek, E. Kalinowski Jan 1996

Heat Exchange In The Working Chamber Of A Multivane Compressor, Z. Gnutek, E. Kalinowski

International Compressor Engineering Conference

No abstract provided.


Dynamic Characterization Of Noise And Vibration Transmission Paths In Linear Cyclic Systems: Part I Theory, Y. M. Cho, H. J. Kim Jan 1996

Dynamic Characterization Of Noise And Vibration Transmission Paths In Linear Cyclic Systems: Part I Theory, Y. M. Cho, H. J. Kim

International Compressor Engineering Conference

No abstract provided.


On The Anechoic Termination Assumption When Modeling Exit Pipes, P.C. C. Lai, W. Soedel Jan 1996

On The Anechoic Termination Assumption When Modeling Exit Pipes, P.C. C. Lai, W. Soedel

International Compressor Engineering Conference

No abstract provided.


On The Permissibility Of Approximating Irregular Cavity Geometries By Rectangular Boxes And Cylinders, P.C. C. Lai, W. Soedel, D. Gilliam, P. Roy Jan 1996

On The Permissibility Of Approximating Irregular Cavity Geometries By Rectangular Boxes And Cylinders, P.C. C. Lai, W. Soedel, D. Gilliam, P. Roy

International Compressor Engineering Conference

No abstract provided.


Mathematical Model Of Reciprocating Compressor With One Or Several Stages For The Real Gases, B. S. Chrustalev, V. B. Zdalinsky, V. P. A. Bulanov Jan 1996

Mathematical Model Of Reciprocating Compressor With One Or Several Stages For The Real Gases, B. S. Chrustalev, V. B. Zdalinsky, V. P. A. Bulanov

International Compressor Engineering Conference

No abstract provided.


Gas Pulsations In Thin, Curved Or Flat Cavities Due To Multiple Mass Flow Sources, P.C. C. Lai, W. Soedel Jan 1996

Gas Pulsations In Thin, Curved Or Flat Cavities Due To Multiple Mass Flow Sources, P.C. C. Lai, W. Soedel

International Compressor Engineering Conference

No abstract provided.


Capheat: An Homogeneous Model To Simulate Refrigerant Flow Through Non Adiabatic Capillary Tubes, M. M. Mezavila, C. Melo Jan 1996

Capheat: An Homogeneous Model To Simulate Refrigerant Flow Through Non Adiabatic Capillary Tubes, M. M. Mezavila, C. Melo

International Refrigeration and Air Conditioning Conference

No abstract provided.