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Closing Hazardous Landfills
Designing and constructing covers for uncontrolled hazardous-waste landfills can pose some special problems�such as differential settlements as great as 50% of landfill thickness. Under...

Building GIS Relationships Spatially and Politically
This paper advocates that the technological aspect of building a spatial GIS is not the critical factor for a successful multi-participant installation. Rather the political relationships...

Understanding Potential Legal Liabilities of Water Resource Professionals and How to Avoid Them
The salvation of the country's water resources is one of the most important problems facing it today. Focused, as they are, on a problem of such overwhelming significance,...

Siting of a Reclaimed Water Reservoir
The City of Santa Rosa (City), California, retained Woodward-Clyde Consultants to identify, evaluate, screen and rank potential sites for construction of a dam and reservoir to store reclaimed...

Forthcoming ASCE/WPCF Manual of Practice
The forthcoming ASCE/WPCF Manual of Practice for the Design and Construction of Urban Stormwater Management Systems includes, as Chapter 1, a derivation of the following text. This chapter...

Construction Contract Documents for Stormwater Facilities
This paper provides an overview of the elements of an acceptable package of contract documents for stormwater facility construction. Thoughtful an meticulous assembly of contract documents...

Pricing Policy for Water Services
Prices and pricing strategies are described in terms of their functions and revenue objectives applicable to water services. Ten pricing objectives are defined in terms of how the objective...

Texas Reservoir Projects: Permitting & Mitigation
Recent reservoir projects in Texas were reviewed on the basis of permitting and mitigation, and subsequent project costs. We document trends of increasing time to prepare and process permit...

Summary of the National ASCE Task Committee on Costs-Benefits of Various Design Frequencies for Urban Drainage Systems and Flood Control
The National ASCE Task Committee on: 'COSTS-BENEFITS OF VARIOUS DESIGN FREQUENCIES FOR URBAN DRAINAGE SYSTEMS AND FLOOD CONTROL' recommends that public officials...

Nonlinearities and Imperfections in Creep Stability
The effects of material and geometric nonlinearities and imperfections on the 'safe-load-limit' and the 'safe-service-period' of structures...

Perplexing Issues in Concrete Softening
We explore some of the proposed techniques for modeling 'softening' via the constitutive model. We seek a framework which is both theoretically sound and physically...

Computational Damage Modeling for Timber Reliability Analysis
Damage models for creep-rupture are used in conjunction with stochastic load models to evaluate lifetime failure probabilities of timber members and systems. This paper examines damage...

Extracting Dynamics from Ocean Wave Time Series Data
Recent developments in chaotic dynamics have indicated that qualitative information of a dynamical system can be extracted from the observation of a single time series as the time series...

Diastolic Function Using 3-D Echo Reconstruction and Finite Element Analysis: Applications for Study in Animal Models and Patients
We have initiated animal experiments using three-dimensional reconstruction of echocardiographic recordings and finite element analysis to evaluate the effects of alterations in preload,...

Three-Dimensional Blood Flows Associated with Intra-Aortic Balloon Counterpulsation
Three-dimensional blood flow processes associated with intra-aortic balloon counterpuslation (IABP) are calculated using a Cray YMP supercomputer. The mathematical model incorporates a...

Characterizing Mode I Fatigue Delamination of Composite Materials
Evaluation of two techniques to characterize fatigue delamination using the double cantilever beam (DCB) specimen are presented. The two techniques were the delamination growth onset (G-N)...

Theoretical and Experimental Mechanisms of Toughening in Multi-phase Materials
Multi-phase materials are an important class of materials being developed for aerospace primary structural applications. Multi-phase materials are those materials consisting of two or...

Crack Growth Stability in Ice
The mechanics of stable, time dependent crack growth as a function of geometry and increasing crack length in saline an freshwater columnar ice are examined in this paper. Experimental...

A Time-Dependent Microplane Model for Creep of Cohesive Soils
The microplane model is used in this paper to describe the time-dependent (creep) behavior of cohesive soils (clays). The constitutive equations are defined on each of a set of microplanes...

Inspection Goes High Tech
Many believe that rehabilitation of the existing infrastructure�not net construction�will dominate the 1990s. Therefore, accurate condition assessment is crucial, since public works agencies...

 

 

 

 

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