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This paper proposes a computational process development capable of filling the electric power sector shortage regarding voltage non-conformities identification in electric distribution power grid accounting for loads dynamic behavior at medium and low voltages. Actual distribution power grid data are used, with georeferencing to signal voltage transgressions locations, generate a report with voltage transgression indices and financial reimbursement values provided by legislation. The methodology compares regulatory requirements and makes available in software some possible actions in an attempt to adjust voltage levels, avoiding inconvenience and penalties for energy utilities providers. The method involves a data extractor construction for electricity provider company's databases, computer simulations and comparison of obtained results with values established in electricity quality control standards. Thus, finding non-conformity locations and determining network adjustments to correct tension indexes in permanent regulation. The proposal features a reduction in electricity utilities operating costs, increasing efficiency in operation and energy quality available to consumers.

Luminescent defects in hexagonal boron nitride (h-BN) have recently emerged as a promising platform for non-classical light emission. On-chip solutions, however, require techniques for controllable in-situ manipulation of quantum light. Here, we demonstrate the dynamic spectral and temporal tuning of the optical emission from h-BN via moving acousto-mechanical modulation induced by stimulated phonons. When perturbed by the propagating acoustic phonon, the optically probed radiative h-BN defects are periodically strained and their sharp emission lines are modulated by the deformation potential coupling. This results in an acoustically driven spectral tuning within a 2.5-meV bandwidth. Our findings, supported by first-principles theoretical calculations, reveal exceptionally high elasto-optic coupling in h-BN of ~50 meV/%. Temporal control of the emitted photons is achieved by combining the acoustically mediated fine-spectral tuning with spectral detection filtering. This study opens the door to the use of sound for scalable integration of h-BN emitters in nanophotonic and quantum information technologies ; This work was supported in part by the collaborative project "Single-Photon Generation in 2D Crystals for Quantum Information" (MDM-2014-0377) funded by the Condensed Matter Physics Center (IFIMAC) as well as by the Spanish MINECO under contracts MAT2014-53119-C2-1-R, MAT2016-77608-C3-1-P and MAT2017-83722-R. S.L. is a recipient of the Ramón and Cajal Research Grant (RyC-2011-09528) funded by the Spanish MINECO. J.J.P.B. acknowledges financial support from Spanish MINECO through Grant FIS2016-80434-P, the Fundación Ramón Areces, the Comunidad Autónoma de Madrid through MAD2D-CM Program (S2013/MIT-3007) and the European Union Seventh Framework Programme under Grant agreement No. 604391 Graphene Flagship. W.S.P. was funded by the CNPq Fellowship programme (Pós-doutorado júnior) under grant 405107/2017-0 and acknowledges the computer resources at FinisTerrae2 and the technical support provided by Barcelona Supercomputing Center (RES-FI-2018-2-0036). We thank Eduardo J.H. Lee (UAM) for his help in sample preparation