Abstract—In this paper we make a temperature investigations in two type of superposed crimped connections using experimental determinations. All the samples use 8 copper wire 7.1 x 3 mm2 crimped by two methods: the first method uses one crimp indents and the second is a proposed method with two crimp indents. The ferrule is a parallel one. We study the influence of number and position of crimp ...

Aim: Endocrown restorations are commonly used to rehabilitate endodontically treated posterior teeth and their use is wellfounded in these cases. However, date, there little scientific evidence of behavior anterior teeth. The aim this vitro study was evaluate the compressive strength upper central incisors teeth, restored with glass-ceramic total crowns by conventional anatomical core technique...

background: different postdesigns and materials are available; however, no consensus exists regarding superiority for stress distribution. the aim of this study was to evaluate the effect of design and material of post with or without ferrule on stress distribution using finite element analysis. materials and methods: a total of 12 three‑dimensional (3d) axisymmetric models of postretained cent...

The mechanical properties of biological tissue describe its behavior under pressure or force. These intrinsic tissue properties can often be related to function. For instance, the spine provides strength and structural support and the ribcage and skull offer protection for delicate internal organs such as the lungs and the brain. On a smaller scale, it has been shown that cells and tissues feel...

Design and production of cables for aerospace systems provide the background for the development of concurrent engineering framework. Key issues include the development of an architecture that supports collaboration among engineers associated with diierent parts of the cable design process and the development of hierarchical representations that capture the diierent characteristics (e.g., conne...

Optogenetic channels have greatly expanded neuroscience's experimental capabilities, enabling precise genetic targeting and manipulation of neuron subpopulations in awake and behaving animals. However, many barriers to entry remain for this technology - including low-cost and effective hardware for combined optical stimulation and electrophysiologic recording. To address this, we adapted the op...