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Engineering Applications of the Analysis of a Spherical Shell
In a companion paper, a set of two integral equations have been established for a spherical shell under axisymmetric loads. This set of equations may be solved numerically by using Nystrom...

Cumulants of the Nonlinear Combination of Independent Random Variables
A random variable of interest is often the sum of linear or nonlinear combinations of many independent random variables. In calculating the statistics of this random sum, advantages of...

Response of Nonclassically Damped MDOF Systems to Nonstationary Random Excitation
A procedure for calculating the dynamic response of a nonclassically damped multi-degree-of-freedom (MDOF) system to nonstationary non-white vector-valued random excitation is developed...

Response Triscpectrum for a Yielding Structure
Simulation is used to obtain information about non-Gaussian aspects of the absolute response acceleration of a bilinear hysteretic oscillator with an excitation which is Gaussian white...

Use of Laser Holography and Image Analysis for Crack Measurement and Determination of Strain Fields in Cement Based Materials
The authors have successfully used laser holographic interferometry to measure various parameters, such as crack size, crack spacing, crack opening displacement, surface displacements...

Visualization of the Microstructural Response of Lightly-Cemented Granular Soils Under Uniaxial Strain Conditions
The microstructural response of granular soil under uniaxial strain is being investigated through direct observation of micromotions. Two techniques are being refined to quantify individual...

Acoustic Emission Source Locations in Concrete
The location of acoustic emission (AE) sources can potentially provide information on the fracture process zone in brittle materials such as concrete. Typical AE experiments generate very...

Experimental Techniques to Study the Microstructure of Cement-Based Materials
Techniques to identify phases and changes in microstructure within cement paste, mortar, and concrete using a scanning electron microscope and image analysis system are described. Backscattered...

Cement and Concrete Characterization by Scanning Electron Microscopy
The scanning electron microscope (SEM) is a powerful tool for the microstructural and chemical characterization of cement and concrete. Imaging techniques such as secondary electron, backscattered...

Hazardous Materials Data: A Federal Perspective
This paper discusses the evolution and current status of the Hazardous Materials Incident Report System (HMIRS) maintained by the Research and Special Programs Administration (RSPA) of...

Issues in Developing Arizona's Hazmat Incident Reporting Program
The Arizona Division of Emergency Services (ADES), in cooperation with Arizona State University (ASU) - Center for Advanced Research in Transportation, and the Arizona Department of Transportation...

Do Simplistic Methods of Foundation Design Produce Reliable Foundations?
Many foundations today are designed using deterministic (single value) analysis techniques which do not reflect the natural variability of soil properties. If the standard deviation and...

Spatial Variation in Liquefaction Risk Assessment
Basic concepts and methods of random field theory, needed to characterize 'distributed disordered systems', are reviewed and applied to a soil liquefaction case...

Lessons Learned About the Building Code Process?The Good, the Bad, and the Ugly
Building codes and standards exist to provide for the health, safety and welfare of the citizenry. Concern must also be given to the need to safeguard the economy lest major changes in...

Lessons Learned by the News Media
The paper summarizes a few things learned from the news media's experience in Hurricane Hugo and which they will try to do differently the next time. These include: simulcasting...

CZMA Consistency Opinions: An Undiscovered Body of Law
The Coastal Zone Management Act allows states to block the issuance of Federal licenses and permits if the permitted activity would be inconsistent with the state's Federally...

Induced Subsidence: Environmental and Legal Implications
Subsidence of coastal areas can be induced by withdrawal of fluids from shallow, unconsolidated horizons beneath the shore zone. In southern California, Huntington Beach, Torrance/Redondo...

The Public Trust Doctrine and Coastal Zone Management: Towards a Model Policy
The Public Trust Doctrine has long been a tenet of American property law and has been utilized to varying degrees in coastal zone management by individual States. Renewed attention to...

Citizen Participation in Regional Planning Efforts
During the past 4 decades the formal role of citizens has become increasingly more apparent under changing legislative mandates. This paper examines citizen participation in developing...

Beach Politics?The Importance of Informed, Local Support for Beach Restoration Projects
The increasing utilization of our coastal areas by people and the development attendant to it have resulted in attempts to maintain or stabilize shorelines. In this paper the author emphasizes...

 

 

 

 

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