Electrodynamic shakers are utilized in many experimental modal tests and general structural dynamic testing. The physical aspects of shaker, stinger and transducer setup can result in anomalies that are often misunderstood. Many times measurement artifacts related to mounting and dynamic coupling between shaker, stinger and test object can appear, affecting test results. This paper overviews so...

Modeling buildings response to blast and subsequent progressive collapse interested more and more researchers during the past two decades. Due to the threat from extreme loading, efforts have been made to develop methods of structural analysis and design. In this paper, progressive collapse capacity of steel moment frames was first investigated using alternate load path method, then a nonlinear...

By integrating data from comparative genomics and large-scale deletion studies, we previously proposed a minimal gene set comprising 206 protein-coding genes. To evaluate the consistency of the metabolism encoded by such a minimal genome, we have carried out a series of computational analyses. Firstly, the topology of the minimal metabolism was compared with that of the reconstructed networks f...

Intelligent analytical aids for design capture the expertise of a specialist in the application of a design analysis technique – for instance in the development of an analytical model, in the forming of assumptions or in the interpretation of results. Such intelligent computer aids that have been developed for decision support within preprocessing and post-processing phase of the structural des...

The Phycodnaviridae, Iridoviridae and related viruses, with diameters of 1500-2000 A, are formed from large trigonal arrays of hexagonally close-packed capsomers forming the faces of icosahedra [Yan et al. (2000), Nature Struct. Biol. 7, 101-103; Nandhagopal et al. (2002), Proc. Natl Acad. Sci. USA, 99, 14758-14763]. Caspar and Klug predicted that such structures could be assembled from hexamer...