The aim of this paper is to model and evaluate the performance of intrusion detection systems (IDSs) facing black-hole and gray-hole attacks within wireless ad hoc networks (WANETs). The main performance metric of an IDS in a WANET can be defined as the mean time required for the IDS to detect an attack in the network. To evaluate this measure, two types of stochastic models called continuous t...

First-principles derivation is given for the heuristic exchange-hole model of London dispersion forces by Becke and Johnson [J. Chem. Phys. 122, 154104 (2005)]. A one-term approximation is used for the dynamic charge density response function, and it is shown that a central nonempirical ingredient of the approximate nonexpanded dispersion energy is the charge density autocorrelation function, a...

A new simple qubit model of black hole evaporation is proposed. The operates on four qubits and defined in terms quantum gates a circuit. chief features the include explicit unitarity (most notably) causality which understood as impossibility transfer information from interior through its horizon. corresponding von Neumann entanglement entropy yields crude (four-qubit) approximation Page curve.

In this paper, we propose a stochastic version of the Hawking–Penrose black hole model. We describe dynamics model as continuous-time Markov jump process quanta out and in hole. The average random satisfies deterministic picture accepted physical literature. Assuming that number is finite proposed consists two componentes: amount outside. representation allows us to apply large deviation theory...

We report a simple first-principles-based simulation model (combining quantum mechanics with Marcus-Hush theory) that provides the quantitative structural relationships between angular resolution anisotropic hole mobility and molecular structures and packing. We validate that this model correctly predicts the anisotropic hole mobilities of ruberene, pentacene, tetracene, 5,11-dichlorotetracene ...

The 3-d BTZ black hole represents an orbifold of AdS3 gravity. The UV as well as the IR region of the CFT is governed by a gauged SL(2,R) WZW model. In the UV it corresponds to a light-cone gauging (Liouville model) whereas in the IR it is a space-like gauging (2-d black hole).

I. Asymmetric fitting of hole branches for three Ag samples Fig. S1 The reduction factor of experimental (scatters) and fitting results by the FLDOS model (solid lines) for hole branches of three Ag samples.

The observed properties of supermassive black holes suggest a fundamental link between their assembly and the formation of their host spheroids. We model the growth and activity of black holes in galaxies using ΛCDM cosmological hydrodynamic simulations by following the evolution of the baryonic mass component in galaxy potential wells. We find that the observed steep relation between black hol...

The observed relation between central black hole mass and spheroid velocity dispersion is interpreted in terms of a self-regulation model that incorporates a viscous Keplerian accretion disk to feed the black hole, embedded in a massive, self-gravitating star forming disk that eventually populates the spheroid. The model leads to a constant ratio between black hole mass and spheroid mass which ...