Digital Commons Network^™

Study Of Segmental Box Girder Bridge Of Turkey Run : Summary Report, David W. Floyd, Charles D. Sutton

JTRP Technical Reports

No abstract provided.

Fabric Reinforced Embankments Constructed On Weak Foundations, Eva Boutrup, R. D. Holtz

JTRP Technical Reports

No abstract provided.

Impact Fatigue Behaviour Of Flapper Valve Steel, A. Futakawa, K. Namura

International Compressor Engineering Conference

No abstract provided.

Extension Of Laboratory-Measured Soil Spectra To Field Conditions, E. R. Stoner, M. F. Baumgardner, R. A. Weismiller, L. L. Biehl, B. F. Robinson

LARS Technical Reports

Spectral responses of two glaciated soils, Chalmers silty clay loam and Fincastle silt loam, formed under prairie grass and forest vegetation, respectively, were measured both in the laboratory under controlled moisture equilibria, and in the field under various moisture and crop residue conditions. An Exotech Model 20C spectroradiometer was used to obtain spectral data in the laboratory under artificial illumination. Reflectance measurements ranged from 0.52-to 2.32-µm in 0.01 µm increments. Asbestos tension tables were used to maintain a 0.10-bar moisture equilibrium following saturation of crushed, sieved soil samples. The same spectroradiometer was used outdoors under solar illumination to obtain spectral …

An Evaluation Of Thematic Mapper Simulator Data For Mapping Forest Cover, M. E. Dean, R. M. Hoffer

LARS Technical Reports

This study evaluated computer-aided analysis techniques applied to Thematic Mapper Simulator (TMS) data for the purpose of mapping forest cover types. Specifically, classification results obtained using a supervised set of training statistics and various combinations of three and four channels subsets of the seven available TMS channels are compared for three classification algorithms: L2, GML, and SECHO. In the analysis, the best three and four channel subsets were determined by minimum transformed divergence criteria. A Karhunen-Loeve or Principal Component linear transformation was applied to the 1979 TMS data set and supervised training statistics were generated for classifying the transformed data. …

Beef Performance Testing: Questions And Answers, L. A. Nelson, K. G. Macdonald

Historical Documents of the Purdue Cooperative Extension Service

No abstract provided.

Assessing Crop Condition At The Field Level Using Landsat Spectral Data, S. E. Hollinger, M. M. Hixson, M. E. Bauer

LARS Technical Reports

A vegetation index (Kauth-Thomas greenness) was used to estimate a stress-no stress condition on corn and soybean fields in AgRISTARS segments. The procedure is an adaptation of the method developed by Thompson and Wehmanen to determine stress levels on the entire segments using Landsat spectral data. The predictions were compared to the Palmer Crop Moisture Index (CMI) and an area was assumed to be stressed when the CMI was less than -1.0. Although additional tests need to be run using years when more severe stress occurs to check the validity of the procedure, in 1978 the procedure predicted 90 and …

Design Of Refrigerant Compressor With Hydraulically Coupled,Hermetically Sealed Linear Drive, J. English, J. Corey

International Compressor Engineering Conference

No abstract provided.

Probabilistic Relaxation On Multitype Data, H. M. Kalayeh, D. A. Landgrebe

LARS Technical Reports

Classification of multispectral image data based on spectral information has been a common practice in the analysis of remote sensing data. However, the results produced by current classification algorithms necessarily contain residual inaccuracies and class ambiguity. By the use of other available sources of information, such as spatial, temporal and ancillary information, it is possible to reduce this class ambiguity and in the process improve the accuracy.

In this paper, the probabilistic and supervised relaxation techniques are adapted to the problem. The common probabilistic relaxation labeling algorithm (PRL), which in remote sensing pixel labeling usually converges toward accuracy deterioration, is …

The Influence Of Computers On Compressor Technology., John F. T. Maclaren

International Compressor Engineering Conference

No abstract provided.

Characterization Of The Oscillometric Method For Measuring Indirect Blood Pressure, L A. Geddes, M Voelz, C Combs, D Reiner, Charles F. Babbs

Weldon School of Biomedical Engineering Faculty Publications

In this study, human subjects and dogs were used to determine the ability of the oscillometric method to indicate systolic and diastolic pressure. In the human studies, the auscultatory method was used as the reference. In the animal studies, directly recorded blood pressure was used as the reference. The ability of the sudden increase in cuff pressure oscillations during cuff deflation to indicate systolic pressure was examined and found to overestimate systolic pressure slightly in man, but more in animals. Systolic pressure was encountered when the cuff pressure oscillations were about one half of their maximum amplitude. However, in both …

Analytical Modeling Of Helical Screw Machine For Analysis And Performance Prediction, B. Sangfors

International Compressor Engineering Conference

No abstract provided.

The Calculating Of Optimal Pressure Ratios And Cylinder Bore Ratios Of Multistage Compressors , X. Qian

International Compressor Engineering Conference

No abstract provided.

An Experimental Investigation Of The Aerodynamics Of A Disc Valve, J. S. Fleming, J. Brown

International Compressor Engineering Conference

No abstract provided.

A Simple But Efficient Equipment For Experimental Determination Of Valve Loss Coefficients Under Compressible And Steady Flow Conditions, H. H. Weiss, L. Boswirth

International Compressor Engineering Conference

No abstract provided.

Optimization Of A Special Shaped Rotary Vane Compressor - Comparison Of Theoretical And Experimental Results, H. Lindemann, H. Kaiser, M. Kuever, H. Kruse

International Compressor Engineering Conference

No abstract provided.

Estimating Valve Losses When Dynamic Effects Are Important, D. Woollatt

International Compressor Engineering Conference

No abstract provided.

Finite Element Analysis Of Cantilever Valve Reeds In Reciprocating Gas Compressors, S. Papastergiou, J. Brown, J. F. T. Maclaren

International Compressor Engineering Conference

No abstract provided.

Theoretical And Experimental Study On Fluid Flow In Valve Channels,Parts I And Ii, L. Boswirth

International Compressor Engineering Conference

No abstract provided.

Experimental Investigation Of Pressure Drop In Valve Ports And Conduits Of Hermetic Compressors, A. W. Paczuski

International Compressor Engineering Conference

No abstract provided.

Pulsation And Vibration Control Requirements In The Design Of Reciprocating Compressorand Pump Installations, W.W. Von Nimitz

International Compressor Engineering Conference

No abstract provided.

Factors Affecting Reliability Of Hermetic Compressors, H. O. Spauschus

International Compressor Engineering Conference

No abstract provided.

Shot Peening And Valve Fatigue, R. Dusil, B. Johansson, L. A. Norstrom, J. Thullen

International Compressor Engineering Conference

No abstract provided.

A Stress Analysis Of Bending Fatigue Specimens Using The Finite Element Method, M. Hehenberger, J. O. Nilsson

International Compressor Engineering Conference

No abstract provided.

Computer Modelinq Of An Oil Flooded Single Screw Air Compressor, T. W. Bein, J. F. Hamilton

International Compressor Engineering Conference

No abstract provided.

First Law Analysis Of A Compressar Using A Computer Simulation Model, S. Lee, R. Singh, M. J. Moran

International Compressor Engineering Conference

No abstract provided.

An Analysis Of A New Type Refrigeration Cycle (Micloss), F. Matsuoka

International Compressor Engineering Conference

No abstract provided.

Optimization Of Shell-And-Tube Intercooler In Multistage Compressor System, Y. Wu, J. F. Hamilton, W. Shenghong

International Compressor Engineering Conference

No abstract provided.

The Dynamic Behaviour Of Half-Annular Valve Reeds In Reciprocating Compressors, S. Papastergiou, J. Brown, J. F. T. Maclaren

International Compressor Engineering Conference

No abstract provided.

Performance Characteristics Of Fixed Volume Ratio Compressors, J. R. Sauls

International Compressor Engineering Conference

No abstract provided.