One disadvantage of conventional iris-loaded accelerating structures is the high ratio of the peak surface electric field to the peak axial electric field useful for accelerating a beam. Typically this ratio Es/Ea ≥ 2. The high surface electric field relative to the accelerating gradient may prove to be a limitation for realizing technologies for very high gradient accelerators. In this paper, ...

The aim of this work was to evaluate ontogeny of reactive nitrogen species (RNS) production by peripheral blood phagocytes in pig. Pig fetuses (55 and 92 days of gestation) and postnatal piglets (1, 3, 8, 17, 31 and 41 days after birth) were used. RNS production was measured by fluorescent probes diaminofluorescein-diacetate (DAF-FMDA) and dichloro-fluorescein-diacetate (H2DCFDA). Levels of nit...

Accelerating beams have attracted considerable research interest due to their peculiar properties and various applications. Although there have been numerous research on the generation and application of accelerating light beams, few results have been published on the generation of accelerating acoustic beams. Here we report on the experimental observation of accelerating acoustic beams along a...

In this paper, we address the issue of hot-carriers and their impact on reducing the reliability of a VLSI circuit by accelerating the aging process of transistors. We tackle this phenomenon by formulating and solving an encoding problem, which we refer to as the Bit-level Transition Balancing (BTB). The BTB problem is to find encoding techniques that minimize the maximum activity over a group ...

Spherical k-means is a widely used clustering algorithm for sparse and high-dimensional data such as document vectors. While several improvements accelerations have been introduced the original algorithm, not all easily translate to spherical variant: Many acceleration techniques, algorithms of Elkan Hamerly, rely on triangle inequality Euclidean distances. However, uses Cosine similarities ins...