Intelligent Tutoring Systems to Aid Water Treatment Plant Operators
Training for water treatment plant operators exists primarily through short courses at colleges or technical schools, self-study manuals, and on-the-job training. Intelligent tutoring...

The Context–Oriented Model: An improved Modeling Approach for Representing and Processing Design Standards
Current electronic design evaluators employ one of three primary computational models to represent a design standard: the Condition/Consequent, Object-Oriented and hybrid models. The problems...

Object-Oriented Structural Analysis with Substructures
Computer-aided structural analysis is a mature field. However, recent research has produced advances in the areas of automated modeling, multi-processing, and programming techniques. The...

State and Resource Based Construction Process Simulation
Stroboscope is a programming language for construction process simulation. The programming language provides access to the state of the simulation and to the properties of resources. It...

Multi-Objective Optimization of Construction Schedules
This paper focuses on the multi-objective deterministic and stochastic modelling and optimization of construction tasks scheduling. Of particular importance is a frequency need to satisfy...

Modeling to Generate Alternatives in Discrete Structural Optimization
Structural design, like other complex decision problems, involves many trade-offs among competing criteria. While mathematical programming models are increasingly realistic, there are...

An Object-Oriented Scheduling Data Acquisition Model Using a Hybrid Expert System
Acquisition of scheduling data for construction project information management is a complicated task. Historically, there has been a fundamental disconnection between cost estimation and...

Probabilistic Modeling of Scheduling Uncertainty: Methods and Tools
This paper provides an overview of probabilistic project scheduling methodologies and tools. It emphasizes the practical application of Monte Carlo simulation in modeling activity durations....

Metamodeling Approach for Approximating the Operating Characteristics of Series of G/G/1 Queues on Congested Waterways
A simulation model representing waterway networks with queues at locks has been developed and validated. Functions developed from queueing theory were formulated to describe the operating...

Formal Specification of AEC Product Models
This paper illustrates the use of equational specifications in developing product data models. This approach enables a precise and abstract description of products, where both syntactic...

Knowledge Issues in Modeling
This paper aims at stressing the importance of the goal of modeling in identifying the underlying bodies of knowledge. It briefly describes the progression in complexity of modeling and...

Use of Expert Systems in Selecting Equilibrium Isotherms of Organic Compound Adsorption on Activated Carbon
An outline of an Expert System (ES) that aids in selecting adsorption isotherms is presented. Such an ES provides an efficient technique for screening the present literature. The ES helps...

A Speed Prediction Model for New Zealand Highways
This paper outlines a limiting speed model using probabilistic techniques to simulate the different types of vehicles and their performance along a two-lane rural highway. The road to...

Building Product Model, A First Brick in Computer Integrated Construction
This paper describes the development of a product model as a basis for an information system. This new approach is based on modelling functions of building units rather than physical entities...

Developments to the IRMA Model of AEC Projects
The rapidly advancing fields of information technologies (IT) for AEC and computer-integrated construction (CIC) rely on the ability to represent and exchange information about AEC projects...

Utilizing Mathcad for Hydraulic Design of Stormwater Pump Stations
This paper describes how the software Mathcad was used for hydraulic design of three pump stations (i.e. select pumps and size forcemains). The pump stations are part of a complete stormwater...

Demand/Supply Relationship in Transportation Network Design Problems: A Genetic Algorithm Approach
The cumulative genetic algorithm (CGA) has its significant advantages over the heuristic algorithms in dealing with transportation network design problems. Using CGA, the entire solution...

Conceptual Models of Product, Project and Document Data; Essential Ingredients of CIC
A number of current on-going national and international standardization efforts which develop standards for information structures in construction are reviewed in the paper. These concern...

DETMOD: A Desktop Estuarine Transport MODel
A microcomputer based numerical model designed to simulate the transport of substances within an estuary is presented. The Desktop Estuarine Transport MODel (DETMOD) features a Graphical...

Use of Database in Geo-environmental Engineering
Geo-environmental projects are becoming increasingly complex requiring rigorous mathematical computation and analysis of large amounts of data. This paper looks into how a geo-environmental...

 

 

 

 

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