OUTLINE Introduction Formal representation of GRNs An example of a GRN: The Lac Operon Hierarchies of GRN models: From probabilistic graphs to mechanistic models A guide to databases and knowledgebases on the internet Pathway Databases & Platforms Ontologies for GRN modeling Current Gene, Interaction, and Pathway Ontologies Whole­cell modeling platforms Ontology for modeling multi­scale and inc...

The coherent flow of a Bose-Einstein condensate through a quantum dot in a magnetic waveguide is studied. By the numerical integration of the time-dependent Gross-Pitaevskii equation in the presence of a source term, we simulate the propagation process of the condensate through a double barrier potential in the waveguide. We find that resonant transport is suppressed in interaction-induced regi...

Optoelectronic hybrid bistability and multistability in an active interferometer using a laser diode are demonstrated experimentally. The active laser-diode interferometer is composed of a Twyman-Green interferometer with an electronic feedback circuit. By feeding back the interferometer output together with an external light input through a detector to control thelaser-diode injection current,...

We use an exact solution of the relaxation-time Boltzmann equation in an uniform AC electric field to describe the nonlinear optical response of graphene in the terahertz (THz). The cases of monolayer, bilayer and ABA-stacked trilayer graphene are considered, and the monolayer species is shown to be the most appropriate one to exploit the nonlinear free electron response. We find that a single ...

Optical bistability is reported in InP/GaInAsP equilateral-triangle-resonator (ETR) microlasers, which are fabricated by planar technology. For a 30 mum side ETR microlaser with a 2-mum-wide output waveguide connected to one of the vertices of the ETR, hysteresis loops are observed for the output power versus the injection current from 215 to 235 K. The laser output spectra are measured in the ...

Two uniaxial spin transfer oscillators with field coupling and RLC loads are considered. This system can demonstrate synchronized as well non-synchronized oscillations. There is an area of bistability in the parameter space where these two regimes coexist. The mechanism control suggested. It shown that if circuits tuned such a way after start their currents slowly monotonically decay from high ...

This paper reports on the numerical analysis, control of coexisting attractors and microcontroller-based design current modulated edge emitting semiconductor laser (CMEESL). The stability equilibrium points solitary found is investigated. By varying amplitude modulation density, CMEESL displays periodic behaviors, period-doubling to chaotic behavior, bistability coexistence between limit cycle ...

Constriction-based Josephson weak links display a thermal bistability between two states exhibiting zero and finite voltages. This manifests in experiments either as hysteresis the current-voltage characteristics of or random telegraphic signal voltage. In latter case, noise-driven amplification sinusoidal excitation device is observed, at frequencies matching characteristic switching frequency...