Two Double Porosity Models for Groundwater Radioactive Contamination
This paper describes two models for groundwater radioactive contamination in a naturally fractured rock. The first one for a saturated rock and the other one for an unsaturated rock. Numerical...
Estimating Geochemical Behavior of Cocnretes to be Placed at Yucca Mountain
The interactions of J-13 water with cementitious materials were examined at 25?C using the geochemical code EQ3NR/EQ6. Results of the modeling suggested the following conclusions: (1)...
General Circulation Models: Applications for Nuclear Waste Repositories
Numerical models have long been used to relate causal and response functions in the natural environment. Some 20 years ago, one-dimensional, multi-causal models of earth temperature evolved,...
Preliminary Assessment of the Impact of Conceptual Model Uncertainty on Site Performance
Performance assessment modeling for high-level radioactive waste (HLW) disposal incorporates three different types of uncertainty. These include data and parameter uncertainty, modeling...
A Formalism to Generate Probability Distributions for Performance-Assessment Modeling
A formalism is presented for generating probability distributions of parameters used in performance-assessment modeling. The formalism is used when data are either sparse or nonexistent....
Characterization Uncertainty and its Effects on Models and Performance
Geostatistical simulation is being used to develop multiple geologic models of rock properties at the proposed Yucca Mountain repository site. Because each replicate model contains the...
Toward Linking Demographic and Economic Models for Impact Assessment
One of the objectives of the Yucca Mountain Project, in Southern Nevada, is to evaluate the effects of the development of a high-level nuclear waste repository. As described in the Section...
Interim Waste Storage for the Integral Fast Reactor Fuel Cycle Demonstration
An interim storage system design and operating strategy were developed for implementation in the Integral Fast Reactor Fuel Cycle Demonstration. Waste characteristics and thermal power...
Knowledge Representation for Bridge Design
An implementation of a frame-based knowledge representation language (KRL) for development of expert system applications in highway bridge design is presented. The frame-based KRL is used...
Optimized Models for Predicting Structural Response in Highway Bridges
Optimization techniques are a viable option for modeling bridges that have been field tested. The error between the experimental strains and the analytical strains is minimized by adjusting...
A Prototype of the Uniform Building Code Using Hypertext
The earthquake section of the Uniform Building Code has been implemented using the hypertext technology. The information was broken down into many interrelated nodes. Figures were scanned...
Visualizing the Performance of Structural Optimization Processes
Graphical constructions are discussed that enable the performance of iterative structural optimization processes to be evaluated visually. The first, a basins of attraction construction,...
Computer-Based Interactive Design for Prestressed Concrete Structures
Prestressed concrete structures can provide a highly desirable solution for many structural applications because the designer gains control over several additional parameters as compared...
A PC-CAD System for Prefabricated Steel Bridges
A microcomputer-aided analysis and design system for prefabricated steel bridges is presented in this paper. The system was customized to perform all the required engineering to analyze,...
Computerized Bridge Monitoring System
Research at the University of Connecticut has generated a full scale vibrational monitoring system for installation on a Connecticut bridge. The monitoring system consists of a field computer...
Integrated Structural Engineering Solution for Design, Drafting and Analysis
Computervision Corporation is a leading CAD/CAM/CAE vendor that offers a complete integrated structural solution to customers. This structural solution allows customers to manage intricate...
Integrated Structural Design Software in the IBM Architecture & Engineering Series
The Architecture and Engineering Series (AES) software by IBM is a high function, fully integrated design, drafting, and information system. The system provides three dimensional geometry...
Integration of CAD and Structural Engineering for Building Design
Many design/build contractors have publicized successes using three-dimensional (3D) computer-aided-design (CAD) models. Structural engineers contribute equipment support structures as...
Computer-Aided Structural Analysis
Finite Element Methods and other numerical techniques are often taught nowadays in the undergraduate Structural Analysis courses. Commercial, structural computer programs are becoming...
COMBAT.PC; a New Windows-Based Tool for Three-Dimensional Dynamic Analysis of Multi-storied Building Structures
By some accounts, analytical capability without the power of visualization is little productive; visualization is the tool that will turn computational power into practical results. COMBAT.PC...
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