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Recent studies show the ability of diffuse ultrasound to characterize surface breaking cracks in concrete. However, derived parameters are sensitive to the presence of partially opened zones along the crack whose pattern may differ from one sample to another. The aim of this letter is to study the variation of diffuse ultrasound parameters while the sample is driven by a low frequency bending l...

The development of .a research model to aid in the understanding of the hierarchical structure of reading readiness 'is described. Data were obtained by testing 218 first graders from three elementary schools with the Frostig The product moment method was used to compute the intercorrelations among the 35 variables. After' an examination of the loading of the subtest variables, four large commo...

With dynamic loading like landing impact a distinction should be made between relatively short and long, quasistatic loading durations, and loadings the durations of which are in the order of the longest lateral period (lowest eigenfrequency) of the structure. A particular problem is to be expected under the later loadings where the interaction of loading dynamics with the dynamics of the buckl...

One of the most crucial components of a tall building is its lateral loading system. In this paper, we provide the development of a lateral bracing system that results in bracing material savings of up to 50% relative to a traditional X-Bracing system, as well as lighter corner columns due to the more efficient load paths of the lateral forces to the base. The solution naturally follows a linea...

This article describes a technique for fabricating a provisional screw-retained restoration for immediate loading of single implants. Until immediate loading of single implants becomes a well-documented treatment modality, this technique should be used cautiously.