Endangerment Assessment in a Multilayered Aquifer Using a Microcomputer Based Transport Model
An endangerment assessment describes the types and degrees of potential hazards to public health, welfare, or the environment that may result from the release of hazardous substances into...

Estuarine Hydrodynamic Modeling on MicroComputers
The program for a two dimensional finite difference estuarine model was adapted for use on a modified IBM-PC/XT microcomputer. Commercially available hardware and supporting software were...

An Interactive Model for Project Planning and Scheduling
This paper presents the development and use of an interactive, microcomputer-based model for project planning and scheduling. The model is general enough to handle both deterministic (CPM-based)...

Computer Simulation of the Overload Behavior of Steel Multigirder Bridges with Cracked Girders
Various approaches of determining the structural response of steel multigirder bridges with cracked girders are presented. It is noted that linear finite element packages with three dimensional...

Groundwater Modeling: Selection of Computing Systems
Results are presented for ten microcomputer systems evaluated with respect to system performance in solving a test case three-dimensional groundwater flow problem. The model used was the...

Application of Lotus 1-2-3 to SWMM Preprocessing
This paper describes a preprocessor for the EPA Stormwater Management Model (SWMM) which is based on a Lotus 1-2-3 spreadsheet. Currently-used methods to input data into SWMM are described...

Computer Use in Structural Analysis
Acquisition of computer hardware and software in order to establish distributed processing and a local area network at the Air Force Weapons Lab has greatly streamlined two structural...

Microcomputer Construction Operations Simulation
This paper summarizes the current status of an ongoing research project whose objective is to collect time data from videotapes of field construction operations and use the data as input...

Modeling Urban Runoff Quality: State-of-the-Art
Procedures used in urban runoff quality modeling are reviewed in the context of common objectives of urban runoff quality analysis. The need for calibration/verification data is emphasized...

Advances in Analysis of Structural Masonry
The papers in this book were presented at the technical session, Advances in Analysis of Structural Masonry, at the ASCE Structures Congress '86 held in New Orleans, LA, on...

Modeling Human Error in Structural Design and Construction
Human error is recognized as the major cause of structural failure. Moreover, it may greatly exacerbate the damaging effect of other hazards, such as earthquakes. The objectives of this...

Finite Element Analysis of Reinforced Concrete Structures
The 40 papers included in this publication were presented at the Joint U.S.-Japan Seminar on Finite Element Analysis of Reinforced Concrete. Two state of the art reviews discuss the role...

Performance Analyses and Design for Urban Bus Transit
This paper describes a Management approach to Bus Transit Systems based on the treatment of Demand, Supply and Policy. The procedure described is currently supported by a series of interactive...

Performance Evaluation and Optimization of Transit Operation
This paper discusses the use of a Performance Evaluation Model in evaluating the effect of short term policy changes including fares, service frequencies, route coverage, and route alignment....

An Infrastructure-Based Strategy for Guiding Reconstruction, Development and Reconciliation in Lebanon
In 1979 an agreement was entered into between the CDR, U. S. A. I. D. , and the American University of Beirut (AUB) whereby an interdisciplinary team of AUB researchers would develop a...

Influence of Artificial Island Side-Slopes on Ice Ride-Up and Pile-Up
An artificial island slope protection scheme must be able to inhibit ice ride-up and pile-up in order to minimize operational interruptions. The prediction of ice ride-up and pile-up mechanisms...

Probabilistic Description of Ice Forces on an Offshore Arctic Structure
A probabilistic simulation model has been developed to describe the frequency and outcome of multi-year ice floe encounters with a fixed offshore structure located in the Beaufort Sea,...

Selection of Environmental Design Criteria for Arctic Structures
Where data are insufficient for calculation of extremes using probability theory, design criteria may be reasonable defined by combining available data, knowledge of physical processes...

Centrifugal Modeling of Ice Forces on Single Piles
The ice forces and ice floe failure mechanisms associated with an ice sheet surrounding a vertical cylindrical pile were evaluated. A test system was developed to model ice forces in gravity...

Endochronic Constitutive Modeling of Frozen Soil
The static behavior of a permafrost type foundation, for a typical artificial island in the Arctic, is determined using endochronic axisymmetric finite element analysis. Endochronic constants...

 

 

 

 

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