background: this study was conducted to assess the effect of thickness and hydration condition on the surface microhardness of endosequence root repair material putty (errm; brasseler usa, savannah, ga), a premixed bioceramic material. materials and methods: polymethyl methacrylate cylindrical molds with an internal diameter of 4 mm and three heights of 2, 4, and 6 mm were fabricated. in group ...

introduction the main perspective in seasonal prediction of precipitation is presentation of a qualitative prediction for upcoming seasons. the information gained from such predictions can be used for decision making in various disciplines such as agriculture, water management and hydropower production. besides, it can help us reduce the adverse effects of climatic changes like drought and floo...

NASA Tech Briefs, September 2010 The iPatch computer code for intelligently patching surface grids was developed to convert conceptual geometry to computational fluid dynamics (CFD) geometry (see figure). It automatically uses bicubic B-splines to extrapolate (if necessary) each surface in a conceptual geometry so that all the independently defined geometric components (such as wing and fuselag...

NASA Tech Briefs, September 2010 The iPatch computer code for intelligently patching surface grids was developed to convert conceptual geometry to computational fluid dynamics (CFD) geometry (see figure). It automatically uses bicubic B-splines to extrapolate (if necessary) each surface in a conceptual geometry so that all the independently defined geometric components (such as wing and fuselag...

We present a variant of the fictitious domain method, where the characteristic function for the domain of interest is defined via elements resulting from the Marching Volume Polytopes Algorithm proposed in [3]. The resulting scheme is tested with a model problem and applied to the simulation of a NC-milling process and of gravity acting on a given section of a mountain range. As usual in fictit...

In this paper, we study the parallel numerical solution of the Navier-Stokes equations with the sparse grid combination method. This algorithmic concept is based on the independent solution of many problems with reduced size and their linear combination. We describe the algorithm for three-dimensional problems and we report on its application to turbulence simulation. Furthermore, statistical r...

Scientific visualization is concerned with the presentation of interactive or animated digital images to users to understand data. The advantages of scientific visualization are: huge amount of data is converted into one picture, it correlates different quantities. One of the problems faced by scientific visualization community is visualization of positive data. Visualization of positive data i...