A water jet machining is an industrial tool capable of cutting a wide variety of materials using a very high-pressure jet of water, or a mixture of water and an abrasive substance. This paper addresses the concept of the Intelligent knowledge base system (IKBS) for optimization of product design and manufacturing process for water jet machining in computer based concurrent engineering environme...

in this study a series of ambient vibration tests on the triple ferrocement elevated water tanks with 150 cubic meters volume, is carried out. in order to verify the dynamic characteristics of full, half-full and one full tanks (mass eccentric system), the different arrangements of sensors are used. the effects of base rotation are also considered in the tests. natural frequencies and mode shap...

limitations in the design method used for the support systems of urban buildings make them vulnerable to damage by adjacent excavations. this paper examines a traditional system used to support excavation sites and adjacent buildings in which inclined struts are connected to the wall or foundation of the adjacent building. this method can be considered to be a type of shoring or underpinning. t...

A water jet machining is an industrial tool capable of cutting a wide variety of materials using a very high-pressure jet of water, or a mixture of water and an abrasive substance. This paper addresses the concept of the Intelligent knowledge base system (IKBS) for optimization of product design and manufacturing process for water jet machining in computer based concurrent engineering environme...

In this paper, we describe our work with the Arthritis Source website and our efforts to develop a community of learners in that context. We argue that given proper architectural support, efforts to listen to learners can effectively foster collaboration between the authors of an informational web site and its users and help community building among its users through a dynamic knowledge base.

Recently, distance learning (DL) has made great achievements in the area of communication space development and the automatic administration of educational processes [1]. Considerably less attention has been paid to the particularities of didactic materials design for DL. The authors claim that a special methodology of didactic material design, based on a cognitive approach, has to be developed...

INTRODUCTION "Research" in design has a long but not very robust history. Individuals have published on the subject almost from the time design was recognized as something to be taught (engineering and architectural design theories have been in the literature since Roman times). Yet, despite exceptional efforts by some individuals, the degree of interest in research among the design disciplines...

The concept and theory of base isolation system are widely accepted at the present. To accomplish the predicted behaviours of the base-isolated buildings, the design for base isolation system is regarded as the dominant factor of the success of isolated buildings. Although the base isolation design can be fulfilled using Uniform Building Code 1997, conceptual design is yet necessarily analyzing...