SODIUM LITHIUM NIOBATE LEAD-FREE PIEZOCERAMICS FOR HIGH-POWER APPLICATIONS: FUNDAMENTAL, PROGRESS, AND PERSPECTIVE

Sodium lithium niobate lead-free piezoceramics for high-power applications: Fundamental, progress, and perspective

With the capability of interconversion between electrical and mechanical energy, piezoelectric materials have been revolutionized by the implementation of perovskite-piezoelectric-ceramic-based studies over 70 years.In particular, the market of piezoelectric ceramics has been dominated by lead zirconate titanate for decades.Nowadays, the research o

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A CITYGML EXTENSION FOR HANDLING VERY LARGE TINS

In addition to buildings, the terrain forms an important part of a 3D city model.Although in GIS terrains are usually represented with 2D grids, TINs are also increasingly being used in practice.One example is 3DTOP10NL, the 3D city model covering the whole of the Netherlands, which stores the relief with a constrained TIN containing more than 1 bi

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A note on arbitrarily vertex decomposable graphs

A graph (G) of order kenda k372 (n) is said to be arbitrarily vertex decomposable if for each sequence ((n_{1},ldots,n_k)) of positive integers such that (n_{1}+ldots+n_{k}=n) there exists a partition ((V_{1},ldots,V_{k})) of the vertex set of (G) such that for each (i in {1,ldots,k}), (V_{i}) induces a connected subgraph of (G) on (n_i) vertices.I

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