Biological and technological systems process information by means of cascades of signals. Be they interacting genes, spiking neurons or electronic transistors, information travels across these systems, producing, for each set of external conditions, an appropriate response. In technology, circuits performing specific complex tasks are designed by humans. In biology, however, design has to be ru...

Serious BER performance degradation due to finite numeric precision in VLSl implementation of Log-MAP and MAX-LogMAP decoders where forward state metnc is calculated using reverse tracing method, is analyzed, and two methods are proposed to overcome this problem, the loser storing method for MAX-LogMAP and the periodic storing method for Log-MAP and MAXLog-MAP. Both methods can reduce memory st...

We study L-categories of lattice-valued convergence spaces. Suchcategories are obtained by fuzzifying" the axioms of a lattice-valued convergencespace. We give a natural example, study initial constructions andfunction spaces. Further we look into some L-subcategories. Finally we usethis approach to quantify how close certain lattice-valued convergence spacesare to being lattice-valued topologi...

We generalize the exact solution to the Bernoulli shift map. Under certain conditions, the generalized functions can produce unpredictable dynamics. We use the properties of the generalized functions to show that certain dynamical systems can generate random dynamics. For instance, the chaotic Chua’s circuit coupled to a circuit with a noninvertible I–V characteristic can generate unpredictable...

A method for representing and manipulating imprecise and vague information in engineering design is described. Designers and customers preferences are captured with Fuzzy sets. Formal methods for including noise, trade-o strategies and design iteration are included. Introduction Imprecision and vagueness are intrinsic aspects of engineering design. If (at the start of a design process) a propos...

Circuit simulation is an important step in electronic circuit design. Using a configurable architecture to speed up simulation is known to result in more timely outcomes. This paper aims at studying how to map circuits onto such a computer architecture using genetic algorithms. These algorithms are used in many applications relating to circuit design such as circuit partitioning, VLSI layout pl...

Cortical gamma oscillations have been implicated in a variety of cognitive, behavioral, and circuit-level phenomena. However, the circuit mechanisms of gamma-band generation and synchronization across cortical space remain uncertain. Using optogenetic patterned illumination in acute brain slices of mouse visual cortex, we define a circuit composed of layer 2/3 (L2/3) pyramidal cells and somatos...

The most expensive part in modern VLSIs is the clockdistribution network where the clock is assumed to be distributed periodically and simultaneously. While, in the semi-synchronous system, the clock is assumed to be distributed periodically, but not necessarily simultaneously. In this framework, we propose a new design methodology which maximizes the performance of a circuit subject to the min...

Thyristor controlled reactors are high power switching circuits used for static VAR control and the emerging technology of flexible ac transmission. The static VAR control circuit considered in the paper is a nonlinear periodically operated RLC circuit with a sinusoidal source and ideal thyristors with equidistant firing pulses. This paper describes new instabilities in the circuit in which thy...

The goal of this research was to identify the suitable technologies for enacting the World Wide Argument Web (WWAW) in the context of newly arisen Pragmatic Web paradigm. The vision is to develop the WWAW based on the Argument Interchange Format (AIF) ontology. On the one hand, we propose concept maps for presenting AIF-based arguments to the human agents. On the other hand, the argumentation s...