The economic value of CAD systems in structural design and construction: A modelling approach

A modelling approach is provided for the analysis of cost-effects of CAD systems. It aims to support strategic management of CAD systems in structural design and construction. The approach is based on the production digraph model of production processes, and the value-added model of information commodities. It has been verified in three case...

MA-CAD: Maintenance Concept Adjustment & Design

Coastal zone management with relation to low investment solutions

Copying solutions from the western, industrial countries for application in developing countries is in general not the best solution for solving the problems of developing countries. The main reason for that is that the available resources in the developing world are different from the resources in western countries. In the industrialised...

A systematic worldwide landcover of satellite mosaics

The gap between the number of detailed satellite images (of e.g. Landsat) recorded and the number actually used is increasing rather than decreasing. A major cause for limited use of potentially available imagery is the cost. A complete range of national, continental and worldwide applications has not developed for that reason. A sketch is made...

Data compression in computational fluid dynamics

Computations in numerical fluid dynamics create large sets of data. Transmission of these datasets requires a high speed communication link or, alternatively, the use of data compression techniques. This report describes the results of a study to the applicability of data compression techniques. An algorithm is designed that yields favourable...

Fatigue Rated Fastener Systems: an AGARD coordinated testing programme

The report contains the description, results and conclusions of a fatigue test programme which assessed the fatigue lives of fastener systems using different joints. High load transfer single shear joints were evaluated in a core programme; secondary bending and load transfer were determined experimentally. About 750 specimens were fatigue...

Functional requirements for a software cost database

Cost estimation of software development and control of the cost during the development, are difficult due to the lack of useful cost figures from previous projects, and consequently due to the lack of an accurate cost estimation and management method. This report describes the results of the first phase of a study to develop a software cost...

Low cost shore protection

This brochure presents low cost ways for the shorel ine property owner to control or slow down shoreline erosion. lt will also be of interest to community leaders, local government officials, and contractors and engineers involved in erosion control. Prepared as a public service by the U.S. Army Corps of Engineers, the brochure is part of a...

Offshore siting of windenergy conversion systems

In a densely populated country such as The Netherlands it is almost impossible to install large numbers of large windturbines on the mainland. That was the main reason to investigate the possibilities of siting the windturbines offshore on the Dutch part of the North Sea Continental Shelf, with a further advantage of a higher windfactor. The...

Cost estimation and management control of software development in scientific/technical projects

Cost estimation of software development.and the monitoring and control of factors which affect the development cost is difficult due to the lack of uniformity in the development approach, to the lack of a standard terminology and due to the limited and difficult to access cost data bases. This report presents a cost estimation approach, together...

Image data security in the concept of the agricultural real time imaging satellite system (artiss)

The study on image data security is directed to the requirement for exclusive access to satellite imagery in the concept of the Agricultiiral Real Time Imaging Satellite System (ARTISS). The security assessment indicates that user survey requests are handled confidentially and it shows the access vulnerability of the transmission of image data...

Financial optimization of investments in maritime structures

The designing engineer often comes across the economic decision problem in which the "benefit" of a higher design criterion must be weighed against the "cost". Several methods have been developed to deal with this optimization problem; none of them, however, offer the possibility of introducing the appropriate considerations of a general policy...

Financial optimization of investments in maritime structures

The designing engineer often comes across the economic decision problem in which the "benefit" of a higher design criterion must be weighed against the "cost". Several methods have been developed to deal with this optimization problem; none of them, however, offer the possibility of introducing the appropriate considerations of a general policy...