Sigma has announced a second-generation version of its full-frame 35mm F1.2 'Art' lens, after teasing that it was coming ...

Hot on the heels of the stabilized 200mm F2, Sigma is releasing another first for mirrorless systems: the 135mm F1.4 DG Art.

In this study, we conducted a comparative analysis of various linear and nonlinear unmixing methods to estimate the composition of intricate clay powder mixtures based on their spectral reflectance.

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Asymmetric interactions between different species of molecules have previously been demonstrated to result in self-organized patterns and functions. If one species A is attracted to B, but in turn, B ...

Abstract: This paper presents static and dynamic models for linear and exponential integrated charge pumps in both step-up and step-down modes. The static models are used to compare the slow-switching ...