9,555 research outputs found

    Cybersecurity Paradigm Shift, The RIsk of Net Neutrality Repeal to Energy Reliability, PUblic Safety, and Climate Change Solutions

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    This Article contends that the Federal Communications Commission’s (FCC) January 2018 repeal of net neutrality rules creates cybersecurity vulnerabilities for the energy sector and other critical infrastructure. Unbridled from enforceable net neutrality rules, Internet Service Providers (ISPs) create systemic supply chain risks as the Internet has become embedded into the energy sector’s distributed ecosystem. This Article argues that cybersecurity has been primarily viewed from a “hacker paradigm” that obscures systemic threats such as those posed by an ISP since firewalls and traditional cybersecurity techniques do not protect against ISP conduct. The Article contends that the FCC’s failure to consider the consequences of net neutrality repeal on public safety and critical infrastructure facilities and services constitutes arbitrary and capricious decision-making under the Administrative Procedures Act. The Article recommends that the D.C. Circuit vacate the FCC’s net neutrality repeal order and remand it to the FCC for analysis of cybersecurity, critical infrastructure protection, and public safety issues. To protect energy reliability, safety, resiliency, renewable integration, just and reasonable rates, and the environment, this article recommends that regulators and energy grid laboratories test the effect of ISP-induced communications delays on electric reliability, safety, and distributed energy generation. This article urges regulators, energy operators, and academics to address ISP and FCC-induced energy-sector cybersecurity risks

    Properties of Magnetized Quark-Hybrid Stars

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    The structure of a magnetized quark-hybrid stars (QHS) is modeled using a standard relativistic mean-field equation of state (EoS) for the description of hadronic matter. For quark matter we consider a bag model EoS which is modified perturbatively to account for the presence of a uniform magnetic field. The mass-radius (M-R) relationship, gravitational redshift and rotational Kepler periods of such stars are compared with those of standard neutron stars (NS).Comment: 5 pages, 2 figures, prepared for the 2nd International Symposium on Strong Electromagnetic Fields and Neutron Stars (SMFNS2011), Varadero, Cuba, 5-7 May 201

    Structure formation in the presence of relativistic heat conduction: corrections to the Jeans wave number with a stable first order in the gradients formalism

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    The problem of structure formation in relativistic dissipative fluids was analyzed in a previous work within Eckart's framework, in which the heat flux is coupled to the hydrodynamic acceleration, additional to the usual temperature gradient term. It was shown that in such case, the pathological behavior of fluctuations leads to the disapperance of the gravitational instability responsible for structure formation. In the present work the problem is revisited now using a constitutive equation derived from relativistic kinetic theory. The new relation, in which the heat flux is not coupled to the hydrodynamic acceleration, leads to a consistent first order in the gradients formalism. In this case the gravitational instability remains, and only relativistic corrections to the Jeans wave number are obtained. In the calculation here shown the non-relativistc limit is recovered, opposite to what happens in Eckart's case.Comment: 10 pages, no figure

    Genetic algorithm optimization of entanglement

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    We present an application of a genetic algorithmic computational method to the optimization of the concurrence measure of entanglement for the cases of one dimensional chains, as well as square and triangular lattices in a simple tight-binding approach in which the hopping of electrons is much stronger than the phonon dissipationComment: 26 pages with 13 figures, based on Chapter 3 of the Master thesis of the first author defended at IPICyT, San Luis Potosi, Mx, on 22nd of February 2006, similar to the published version [Fig. 5 left out but contains the Appendix figure
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