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Amino Acid Geochronology Applied to the Dating of Eolianites on San Salvador Island, Bahamas
Using amino acid racemization data measured on carbonate eolianite sediments, we assess the ability of amino acid geochronology to distringuish among several stratigraphic units on San...

Floor Response Spectra Analysis Including Correlations of Multiple Support Motions
This paper deals with the response spectrum analysis method of the secondary structures including the correlation effects between nonuniform support excitations. Based on the random vibration...

Aperture Characteristics, Saturated Fluid-Flow, and Tracer-Transport Calculations for a Natural Fracture
We used surface-profile data taken with a noncontact laser profilometer to determine the aperture distribution within a natural fracture and found the surfaces and apertures to be isotropic....

Sustained Yield of the Provo Groundwater Basin
The sustained yield of the Provo Groundwater Basin has been determined by a correlation analysis of the change in groundwater levels with the April-October stream flow at the mouth of...

Analysis of Spatial and Temporal Precipitation Data Over a Densely Gaged Experimental Watershed
Historical precipitation data from the densely gaged Walnut Gulch Experimental Watershed in southeastern Arizona are used to quantify watershed-scale properties of precipitation. Daily,...

Gyratory Testing Machine Usage in Monitoring HMA Quality
This paper describes research conducted by the Mississippi Department of Transportation to investigate the potential of the U.S. Army Corps of Engineers' Gyratory Testing Machine (GTM)...

On the Approximated Solution of Non-Linear Systems Under Non Gaussian Excitations
The study of non-linear mechanical and structural systems under random excitations has become very important in the last years. When random excitations are Gaussian, many approaches can...

Earthquake Ground Motion Modeling with Stochastic Line Source
Principles of geophysics and stochastics are applied to develop an earthquake model, in which the earth medium is idealized as consisting of stratified elastic layers, responding to seismic...

Analytical Methods for the Determination of Correlations and Spectra of Nonlinear System Response
Three analytical methods are described for the prediction of response correlation functions and spectra of nonlinear dynamic systems under white noise excitation. The associated FPK equation...

On the Failure Probabilities of R/C Chimneys
A procedure to estimate failure probabilities of structural systems such as reinforced concrete (R/C) chimneys under severe wind loading which allows for considering realistic correlation...

A New Formulation for Structural Reliability of Parallel Systems
Presented is a realistic method to calculate the reliability of a parallel structural system. The present theory considers that each element of a parallel system may have different reliability...

Raingage Network Resolution With Spatial Statistics
Spatial and temporal resolution of rainfall are studied using cross-correlation techniques. The cross-correlation coefficient is used in a semi-variogram type analysis to determine the...

Bearing Pressure?SPT Correlations for Expanded Base Piles in Sand
Design of enlarged base piles is usually carried out using correlations between SPT N values and point resistance. The results of full scale load tests are used to show that base resistance...

A Multivariate Analysis of Stillwater Lakes, Nevada
Stillwater Lakes located in western Nevada has been experiencing an astounding number of fish and waterfowl deaths since August 1986. This problem is explored through a multivariate statistical...

Identifying Temporal Change in the Spatial Correlation of Regional Groundwater Contamination
An approach for estimating the semivariogram based on the jackknife method can be used in connection with standard confidence procedures to set closely approximate confidence limits on...

Stochastic Properties of Wind Spectra
In the first part of this paper the correlation function of measured wind spectra is compared with theoretical correlation models assuming a stationary wind process. This comparison indicates...

Use Requirements for Bowen Ratio and Eddy Correlation Determination of Evapotranspiration
Reduced costs and complexity are encouraging more operational use of eddy correlation (EC) and energy balance Bowen ratio (EBBR) instrumentation for estimating evapotranspiration. Often...

Ultrasonic Flow Meter Testing
Six ultrasonic flow meters were tested in a hydraulics laboratory. Accuracies better than 2% were obtained with two transit-time meters on 14 inch diameter steel tubing. Poorer accuracies...

Model-Prototype Correlation of Hydraulic Structures
Forty-three papers are contained in these proceedings, from the International Symposium on Model-Prototype Correlation of Hydraulic Structures. The papers cover a broad range of subjects...

Freshwater Inflow Requirements of a Texas Estuary
The objective of this study is to estimate the amount and scheduling of freshwater inflows required to maintain fishery productivity, especially shrimp, in Matagorda Bay, Texas. To estimate...

 

 

 

 

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