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Productivity Applications: 3D Models & Simulation
Background. Although three-dimensional computer models have been used to some degree in practice by a few large engineering and construction firms, there has been little research into...

Graphical Database for Construction Planning and Cost Control
Stone & Webster Engineering Corporation is using Computer Aided Construction (CAC) System that integrated construction planning with estimate development, schedule generation,...

A Framework for Reasoning About CAD Data
A system capable of reasoning about CAD data offers the opportunity to substantially improve a design or a construction plan by providing feedback about an engineer's artifact. This paper...

Integration of CAD and Knowledge-Based Systems?An AI Architecture
This research focuses on the use of CAD-KBSs integration as a tool for increasing constructability in design and accomplishing construction management functions. Beyond the drafting ability,...

Design and Construction Integration Using Object Oriented Project Model with Multiple-Views
Generating, sharing and maintaining project data among multiple disciplines and throughout a project life cycle is difficult task in the highly fragmented A/E/C industry. Presently, the...

The Virtual Design Team: An Object-Oriented Model of Information Sharing in Project Design Teams
The Virtual Design Team (VDT) is an object-oriented, discrete event simulation of a multidisciplinary design team in action. The VDT models a design task as a network of design and design...

An Object Oriented Design Methodology for Systems Integration ? A Research-in-Progress Report
This paper reports the progress of a research project to develop an object oriented design methodology for systems integration. The paper discusses motivation for this research, research...

Computer-Based Environment for Integrated Tunneling Design and Construction
The MIT tunneling group has developed, over the past decade, a number of decision support tools for the geologist and engineer, planner and designer, owner and contractor involved in tunnel...

Integrated Design and Construction Planning by Knowledge-based Systems
The main objective of this paper is to describe applications of knowledge-based systems for the improvement of planning and management efficiency at the early design stage, and to propose...

Implicit Design Knowledge and its Impact on Cost Estimating
Construction cost estimating experiences negative impacts due to a design-construction gap created by the fragmented nature of the AEC industry. Most of the design knowledge and data that...

Conceptual Model for a Site Operations Control System
This study discusses a conceptual model for designing an on-site management control system. Capabilities of this proposed Site Operations Control System (SOCS) include a mechanism for...

3D Computer Modeling & Animation for Marketing of Project Services
Three-dimensional (3D) computer modeling and animation are increasingly being utilized in the Engineering and Construction industry for the marketing of project services. Like 2D, 3D modeling...

An Object-Oriented Simulation System for Construction Process Planning
This paper presents an object-oriented simulation system designed to integrate specific construction knowledge into construction process planning. Using the object-oriented representation,...

Site Layout: Where Should it Go?
Site layout is mostly treated as a task independent of other resource allocation tasks such as those that are traditionally associated with construction planning and scheduling. Yet, the...

Construction Technology/Method Identification and Selection System
The proliferation of construction technology and the characteristics of technology information, such as complexity, interdependency, etc., pose the need for a well-organized technology...

Integrated Cost and Schedule Control Automation
Effective management of construction projects depends on good access to and control of data, especially data pertaining to cost and schedule control functions. Long recognizing the need...

Turbulent Water Aeration: Analytical Approach and Experimental Data
Analytical studies based on the statistical theory of turbulence were carried out in order to identify some relevant parameters which may be associated with the reaeration rate coefficient...

A Simple Empirical Model of Aeration at Navigation Dams
In a study of aeration at 28 dams in the upper Ohio River basin, site-specific least-squares linear regression models were used to describe the dissolved oxygen deficit below each dam...

Theoretical Investigation of Oxygenating Bubble Plumes
Rehabilitation of lakes by oxygenation with air or oxygen plumes has been proven to be biologically feasible. Oxygenating plumes are released from areal sources and the gases are absorbed...

Water Surface Flow and Exchange Induced by a Bubble Plume
Aeration is a common method to increase dissolved oxygen in the water of stratified (or non-stratified) lakes. In this method compressed air is injected at some depth, and gas is transferred...

 

 

 

 

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