Photovoltaic systems integrated to the grid have received considerable attention around the world. They can be connected to the electrical grid via galvanic isolation (transformer) or without it (transformerless). Despite making galvanic isolation, low frequency transformer increases size, cost and losses. On the other hand, transformerless PV systems increase the leakage current (common-mode c...

We present a new model of gene expression, which relies on an interpretation with a stack. We rst give an outline of the main morphogenic evolutionary computation approaches, and bring out the properties we wish to have from a gene expression model used to build structures. Then we present our model and an application of its principles. Finally, we give a discussion on the properties of the mod...

The Rockefeller University Press $30.00 J. Cell Biol. Vol. 204 No. 7 1157–1172 www.jcb.org/cgi/doi/10.1083/jcb.201308115 JCB 1157 Correspondence to Shannon Ballard: [email protected] Abbreviations used in this paper: BMP, bone morphogenic protein; Brp, Bruchpilot; CNS, central nervous system; EJP, excitatory junction potential; mEJP, miniature EJP; MN, motoneuron; NF-B, nuclear factor B; NMJ...

A modulated holding beam shining a VCSEL above threshold can improve modulation bandwidth by adjusting the semiconductor laser’s relaxation oscillation frequency. The improved modulation characteristics are accompanied by reduced damping rate. By choosing correct parameters, dynamical behavior of system and cavity solitons is changed.