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This paper proposes a single-stage inverter topology for grid connected PV systems. Isolated voltage generated by the solar modules is effectively used in a neutral point clamped multilevel inverter to generate high quality AC voltage for feeding into the grid. The control scheme is implemented in synchronously rotating reference frame for independent control of active and reactive power. Loss calculation...
High-efficiency DNA ligation is vital for many molecular biology experiments, and it is best achieved using reactants with non-palindromic sticky ends to maximize specificity. However, optimizing such multi-parametric ligation reactions often involves extensive trial and error. We have developed a freely available Web-based ligation calculator, NP-Sticky (http://sarkarlab.umn.edu/npsticky/), that...
Secrecy graphs model the connectivity of wireless networks under secrecy constraints. Directed edges in the graph are present whenever a node can talk to another node securely in the presence of eavesdroppers. In the case of infinite networks, a critical parameter is the maximum density of eavesdroppers that can be accommodated while still guaranteeing an infinite component in the network, i.e., the...
This paper presents Safe-ERfair, an efficient resource allocation strategy for handling overloads in real-time ERfair scheduled embedded systems. Each task has an assigned criticality value and consists of a mandatory part and an optional part. The scheduler employs an a priori look-ahead mechanism at the time of arrival of a new job to examine the occurrence of possible overloads during the execution...
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