Digital Commons Network^™

County Road Management - Guidelines For Boards Of County Commissioners, Jean E. Hittle

Indiana Local Technical Assistance Program (LTAP) Publications

The purpose of these guidelines is to provide new County Commissioners in Indiana with a basic orientation of their duties and responsibilities in the management of county road systems. It is also a convenient reference to review.

Maximum Likelihood Estimation Of Label Imperfection Probabilities And Its Use In The Identification Of Mislabeled Patterns, C. B. Chittineni

LARS Symposia

This paper presents the problem of estimating label imperfections and the use of the estimation in identifying mislabeled patterns. Expressions for the maximum likelihood estimates of classification errors and a priori probabilities are derived from the classification of a set of labeled and unlabeled patterns. Expressions also are presented for the asymptotic variances of probability of correct classification and proportions. Simple models are developed for imperfections in the labels and for classification errors and are used in the formulation of a maximum likelihood estimation scheme. Schemes are presented for the identification of mislabeled patterns in terms of thresholds on the …

Delineation Of Soil Boundaries Using Image Enhancement And Spectral Signature Classification Of Landsat Data, M. L. Imhoff, G. W. Petersen, J. R. Irons

LARS Symposia

The concept of using satellite data for soils inventories began with the advent of the first ERTS launch in 1972.

Landsat data can be useful in a field survey, if it satisfies one or both of two requirements: the products must improve the accuracy of the survey and/or it must expedite the survey. These goals can be achieved by creating products that enhance and delineate soil surface features that would not necessarily identify specific soil types but rather provide a spatial boundary that a field scientist could observe and evaluate.

A 250,000 acre tract of semiarid rangeland in east central …

Parallel Processing Implementations Of A Contextual Classifier For Multispectral Remote Sensing Data, Howard Jay Siegel, Philip H. Swain, Bradley W. Smith

LARS Symposia

Contextual classifiers are being developed as a method to exploit the spatial/spectral context of a pixel to achieve accurate classification. Classification algorithms such as the contextual classifier typically require large amounts of computation time. One way to reduce the execution time of these tasks is through the use of parallelism. The applicability of the CDC Flexible Processor system and of a proposed multimicroprocessor system (PASM) for implementing contextual classifiers is examined.

An Assessment Of Landsat Data Acquisition History On Identification And Area Estimation Of Corn And Soybeans, Marilyn M. Hixson, Marvin E. Bauer, Donna K. Scholz

LARS Symposia

During the past decade, numerous studies have demonstrated the potential of satellite remote sensing for providing accurate and timely crop area information. This study assessed the impact of Landsat data acquisition history on classification and area estimation accuracy of corn and soybeans.

Multitemporally registered Landsat MSS data from four acquisitions during the 1978 growing season were used in classification of eight sample segments in the U.S. Corn Belt. The results illustrate the importance of selecting Landsat acquisitions based on spectral differences in crops at certain growth stages.

Crop Classification With A Landsat/Radar Sensor Combination, Robert Y. Li, Fawwaz T. Ulaby, Ronald J. Eyton

LARS Symposia

A combined Landsat/radar approach to classification of remotely sensed data, with emphasis on crops, was undertaken. Radar data were obtained by microwave radar spectrometers over fields near Eudora, Kansas and Landsat image data were obtained for the same test site. After Landsat digital images were registered and test-cells extracted, a comparable set of radar image pixels were simulated to match the Landsat pixels. The combined data set is then used for classification, and the results are examined with the best combination of sensor variables identified. Finally, the usefulness of radar in a simulated cloud-coversituation is demonstrated. The major conclusion derived …

Preparing A Schematic Soils Map Of An Arid Area Using Landsat Imagery, R. H. Gilbert

LARS Symposia

Between June 1977 and October 1979, a schematic soils map was made of an arid area 2,149,700 square kilometers in size using photo-interpretive techniques on 120 Landsat scenes. The smallest mapping unit was about 5000 hectares. The mapping units were named for the soil subgroups that were present classification of the soils was based on Soil Taxonomy.

Visual interpretations were made on the images (black and white band 7) after determining the general landscape forms that were present in the scene. Topographic and Geologic maps were used for preliminary identification of similar areas. Delineations of each mapping unit were made …

A Model Of Plant Canopy Polarization Response, V. C. Vanderbilt

LARS Symposia

Sensors to remotely measure the linear polarization of ground scenes have been proposed for the Multispectral Resource Sampler (MRS), a satellite sensor system proposed to compliment the Thematic Mapper. At present justification for a sensor on MRS to measure scene polarization is limited. This paper discusses a model for the amount of linearly polarized light reflected by the shiny leaves of such crops as wheat, corn, and sorghum. The theory demonstrates that, potentially, measurements of the linearly polarized light from a crop canopy may be used as an additional feature to discriminate between crops. Examination of the model suggests that, …

The Use Of Cir And Airborne Multispectral Scanner Techniques For Wetland Soils Mapping Of Highway Corridors, Alice E. Redfield, Kenneth S. Thom

LARS Symposia

This paper summarizes the results of an investigation aimed at evaluating the potential advantages of state-of-the-art airborne remote sensing for highway siting and planning tasks, specifically in wetlands areas.

The basic objectives of the study were to develop methodologies using remotely sensed data for mapping wetlands soils and drainage, to evaluate the relative merits and usefulness of the various methods developed, to generate a selection of output products from the remote sensor data for display to highway planners and photo-interpreters, and to provide recommendations for implementation of remote sensing techniques in the highway planning and siting process. To accomplish these …

Influence Of Interposed Ventilation Pressure Upon Artificial Cardiac Output During Cardiopulmonary Resuscitation In Dogs, Charles F. Babbs, W D. Voorhees, K R. Fitzgerald, H R. Holmes, L A. Geddes

Weldon School of Biomedical Engineering Faculty Publications

This study was conducted to determine the effects of high pressure interposed ventilations during cardiopulmonary resuscitation (CPR). Cardiac output was measured by a modified indicator dilution technique in eight anesthetized, intubated mongrel dogs. Positive pressure ventilations (12/min, 80% O2) were interposed after every five chest compressions (performed at 62/min) by a mechanical chest compressor (Thumper®). On repeated trials in the same animal, ventilation pressures from 10-50 cm of H2O were tested in randomized sequence, while the technique of chest compression was held constant. Arterial blood gases immediately after resuscitation were monitored. Increasing ventilation pressure had surprisingly little effect on cardiac …

Static And Dynamic Analysis Of Reed Valves Using A Minicomputer Based Finite Element Systems, G. C. Griner, G. W. Gatecliff, H. Richardson

International Compressor Engineering Conference

No abstract provided.

Electrical Modeling Of Pressure Pulsation Dampers, M. Luszczycki

International Compressor Engineering Conference

No abstract provided.

An Animal Model For Testing Automatic Defibrillators, J D. Bourland, Charles F. Babbs, W A. Tacker, L A. Geddes

Weldon School of Biomedical Engineering Faculty Publications

A promising therapy for ventricular fibrillation--a life-threatening cardiac arrhythmia--is the implantation of an automatic defibrillator. A critical component of such a device is the system that detects the presence of ventricular fibrillation. Automatic systems for detecting ventricular fibrillation have been tested with arrhythmias produced by electric shocks in normal canine hearts, but have not been tested with spontaneous arrhythmias in hyperirritable hearts. We have developed an animal model to create arrhythmias without electrical stimulation and have used it to test our automatic defibrillator. This model permits evaluation of both reliability to diagnose ventricular fibrillation and reliability to reject other tachyarrhythmias.

Dynamic Intraesophageal Imaging Of The Heart With Ultrasound, N. E. Fearnot, Charles F. Babbs, J. D. Bourland, L. A. Geddes

Weldon School of Biomedical Engineering Faculty Publications

Real-time images of the heart from within the esophagus are produced by a new intraesophageal ultrasonic sector scanner. Sixty images per second are displayed on a gray scale CRT in real-time and recorded on standard videotape for review. By interactive positioning of the esophageal probe, heart ventricles, atria, and valves can be visualized and their dynamics can be studied. The esophageal probe comprises four 5 MHz PZT-5 piezoelements of 6.35 mm diameter, mounted on a shaft that rotates at 900 rpm. The piezoelements are pulsed at a 5 kHz rate and the echoes are processed electronically.

Models For Verifiers, Francine Berman

Department of Computer Science Technical Reports

No abstract provided.

The Power Of Parallelism Automatic Program Synthesis, Carl H. Smith

Department of Computer Science Technical Reports

No abstract provided.

Is Mathematical Software A Legitimate Research Area?, John R. Rice

Department of Computer Science Technical Reports

No abstract provided.

Implementing The Mean Value Algorithm For The Solution Of Queueing Network Models, Herb Schwetman

Department of Computer Science Technical Reports

No abstract provided.

Dynamic Intraesophageal Imagining Of The Heart With Ultrasound, N E. Fearnot, Charles F. Babbs, J D. Bourland, L A. Geddes

Weldon School of Biomedical Engineering Faculty Publications

Real-time images of the heart from within the esophagus are produced by a new intraesophageal ultrasonic sector scanner. Sixty images per second are displayed on a gray scale CRT in real-time and recorded on standard videotape for review. By interactive positioning of the esophageal probe, heart ventricles, atria, and valves can be visualized and their dynamics can be studied. The esophageal probe comprises four 5 MHz PZT-5 piezoelements of 6.35 mm diameter, mounted on a shaft that rotates at 900 rpm. The piezoelements are pulsed at a 5 kHz rate and the echoes are processed electronically.

The Development Of Energy Efficient Compressors For Refrigerators And Freezers, R. T. Nelson, M. G. Middleton

International Compressor Engineering Conference

No abstract provided.

Analytical Model Of An Oil-Free Screw Compressor, J. Brablik

International Compressor Engineering Conference

No abstract provided.

Time Resolved Mass Flow Measurement For A Reciprocating Compressor, K. Lee, J. L. Smith

International Compressor Engineering Conference

No abstract provided.

Simulation Studies, On The Rotary Type Compressor Systems, A. S. Ucer, H. M. Aksel

International Compressor Engineering Conference

No abstract provided.

Predicting The Influence Of Internal Mounting Bracket And External Mounting Feed Locations On Sound Radiated From Hermetic Compressor Shells, E. B. Brookbank, L. L. Faulkner

International Compressor Engineering Conference

No abstract provided.

Optimum Design Of Reciprocating Compressors To Meet Thermodynamic Criteria , S. V. Kerr, R. G. Hoare, J. F. T. Maclaren

International Compressor Engineering Conference

No abstract provided.

Eer Improvement On A Reciprocating Hermetic Compressor, F. Peruzzi, V. Bacci, G. Scandurra

International Compressor Engineering Conference

No abstract provided.

Investigation Of Non-Lubricated Piston Ring Problems - Cause, Effect And Solution, R.F. M. Tremain

International Compressor Engineering Conference

No abstract provided.

European Domestic Heat Pumps With Capacity Control, N. J. Josiassen

International Compressor Engineering Conference

No abstract provided.

Lubricant Related Problems With Heat-Pumps, D. W. Hughes, J. T. Mcmullan, K. A. Mawhinney, R. Morgan, B. L. Sutcliffe

International Compressor Engineering Conference

No abstract provided.

Flow Forces And The Tilting Of Spring Loaded Valve Plates - Part Iii, L. Boswirth

International Compressor Engineering Conference

No abstract provided.