• A simple circuit with dynamic logic architecture of basic logic gates 

      Campos Cantón, Eric; Rosu Barbus, Haret-Codratian (2010)
      "We report experimental results obtained with a circuit possessing dynamic logic architecture based on one of the theoretical schemes proposed by H. Peng and collaborators in 2008. The schematic diagram of the electronic ...
    • Barotropic FRW cosmologies with a Dirac-like parameter 

      Rosu Barbus, Haret-Codratian; López Sandoval, Román (2004)
      "Using the known connection between Schroedinger-like equations and Dirac-like equations in the supersymmetric context, we discuss an extension of FRW barotropic cosmologies in which a Dirac mass-like parameter is introduced. ...
    • Barotropic FRW cosmologies with Chiellini damping in comoving time 

      Rosu Barbus, Haret-Codratian; Mancas, Stefan C; Chen, Pisin (2015)
      "For nonzero cosmological constant ?, we show that the barotropic FRW cosmologies as worked out in the comoving time lead in the radiation-dominated case to scale factors of identical form as for the Chiellini dissipative ...
    • Chaotic dynamics of a nonlinear electronic converter 

      Campos Cantón, Eric; Rosu Barbus, Haret-Codratian (2008)
      "The nonlinear electronic converter used by Rulkov and collaborators [Rulkov et al., 2001], which is the core of their chaotic oscillator, is modeled and simulated numerically by means of an appropriate direct relationship ...
    • Improvement and analysis of a pseudo random bit generator by means of cellular automata 

      Murguía, José; Rosu Barbus, Haret-Codratian (2010)
      "In this paper, we implement a revised pseudo random bit generator based on a rule-90 cellular automaton. For this purpose, we introduce a sequence matrix HN with the aim of calculating the pseudo random sequences of N ...
    • Inhomogeneous barotropic FRW cosmologies with constant-shifted conformal hubble parameters 

      Rosu Barbus, Haret-Codratian; Khmelnytskaya, Kira V. (2013)
      "It is known that the barotropic FRW system of differential equations for zero cosmological constant can be reduced to simple harmonic oscillator (HO) differential equations in the conformal time variable. This is due to ...
    • KdV adiabatic index solitons in barotropic open FRW cosmologies 

      Rosu Barbus, Haret-Codratian (2002)
      "Applying standard mathematical methods, it is explicitly shown how the Riccati equation for the Hubble parameter H() of barotropic open FRW cosmologies is connected with a Korteweg-de Vries equation for adiabatic index ...
    • Large and reversible elastocaloric effect near room temperature in a Ga-doped Ni–Mn–In metamagnetic shape-memory alloy 

      Camarillo García, Juan Pablo Ramón; Aguilar Ortiz, Christian Omar; Flores Zúñiga, Horacio; Ríos Jara, David; Soto-Parra, Daniel Enrique; Stern Taulats, Enric; Mañosa, Lluis; Planes, Antoni (2017-02)
      "We report a giant elastocaloric effect near room temperature in a polycrystalline Ga-doped Ni-Mn-In ferromagnetic shape-memory alloy. The elastocaloric effect has been quantified by measuring both isothermal stress-induced ...
    • Matrix approach of an encryption system based on cellular automata and its numerical implementation 

      Murguía, José; Flores Eraña, Gustavo; Mejía Carlos, Marcela; Rosu Barbus, Haret-Codratian (2012)
      "The main components of an encryption system based on rule 90 cellular automata, i.e., two indexed families of permutations and a pseudorandom bit generator are implemented in a very xible way through a convenient matrix ...
    • Nongauge bright soliton of the nonlinear Schrödinger (NLS) equation and a family of generalized NLS equations 

      Reyes, Marco A.; Gutiérrez Ruiz, Daniel; Mancas, Stefan C; Rosu Barbus, Haret-Codratian (2016)
      "We present an approach to the bright soliton solution of the nonlinear Schrödinger (NLS) equation from the standpoint of introducing a constant potential term in the equation. We discuss a "nongauge" bright soliton for ...
    • Note on Hawking-Unruh effects in graphene 

      Chen, Pisin; Rosu Barbus, Haret-Codratian (2012)
      "Beltrami-shaped graphene sheets have been recently proposed as analogs of curved spacetimes with Hawking-Unruh e?ects detected through typi-cal condensed matter measurements involving scanning tunneling micro-scopes and ...
    • On arithmetic detection of grey pulses with application to Hawking radiation 

      Rosu Barbus, Haret-Codratian; Planat, Michel (2002)
      "Micron-sized black holes do not necessarily have a constant horizon temperature distribution. The black hole remote-sensing problem means to find out the "surface" temperature distribution of a small black hole from the ...
    • Quantum Hamiltonians and prime numbers 

      Rosu Barbus, Haret-Codratian (2003)
      "A short review of Schrödinger Hamiltonian for which the spectral problem has beenVrelated in the literature to the distribution of the prime numbers is presented here. WeVnotice a possible connection between prime numbers ...
    • Supersymmetric methods in the traveling variable: inside neurons and at the brain scale 

      Rosu Barbus, Haret-Codratian; Cornejo Pérez, Octavio; Pérez Terrazas, Jaime Enrique (2008)
      "We apply the mathematical technique of factorization of differential operators to two different problems. First we review our results related to the supersymmetry of the Montroll kinks moving onto the microtubule walls ...
    • Talbot effect for dispersion in linear optical fibers and a wavelet approach 

      Rosu Barbus, Haret-Codratian; Treviño Gutiérrez, Juan Pablo; Cabrera Ibarra, Hugo; Murguía, José (2006)
      "We shortly recall the mathematical and physical aspects of Talbot’s self-imaging effect occurring in near-field diffraction. In the rational paraxial approximation, the Talbot images are formed at distances z = p/q, where p ...
    • Two-dimensional DFA scaling analysis applied to encrypted images 

      Vargas Olmos, Cecilia; Murguía, José; Ramírez Torres, Marco Tulio; Mejía Carlos, Marcela; Rosu Barbus, Haret-Codratian; González-Aguilar, Hernán (2015)
      "The technique of detrended fluctuation analysis (DFA) has been widely used to unveil scaling properties of many different signals. In this paper, we determine scaling properties in the encrypted images by means of a ...
    • Wavelet multifractal detrended fluctuation analysis of encryption and decryption matrices 

      Murguía, José; Mejía Carlos, Marcela; Vargas Olmos, Cecilia; Ramírez Torres, Marco Tulio; Rosu Barbus, Haret-Codratian (2013)
      "In this paper, we study in detail the multifractal features of the main matrices of an encryption system based on a rule-90 cellular automaton. For this purpose we consider the scaling method known as the wavelet transform ...