We treated Limulus ventral photoreceptors with the phosphatase inhibitors fluoride, vanadate, and GTP-gamma-S [guanosine-5'0-(3-thiotriphosphate)] under various conditions of illumination and external calcium concentrations. In the dark in low-calcium (1 mM) artificial seawater (ASW), fluoride-induced discrete waves cluster together in time. Under these conditions, the intervals between waves w...

The present paper contains a specification of the EM algorithm in order to fit an empirical counting process, observed at discrete times, to a Markovian arrival process. The given data are the numbers of observed events in disjoint time intervals. The underlying phase process is not observable. An exact numerical procedure to compute the E and M steps is given.

We extend some remarkable recent results of Lubinsky and Levin–Lubinsky from [−1, 1] to allow discrete eigenvalues outside σess and to allow σess to first be a finite union of closed intervals and then a fairly general compact set in R (one which is regular for the Dirichlet problem).

A filtering problem over an infinite horizon for a continuous time signal and discrete time observation in the presence of non Gaussian white noise is considered. Conditions are presented, under which a nonlinear Kalman type filter with limiter is asymptotically optimal in the mean square sense for long time intervals given provided the sampling frequency is sufficiently high.

The behavior of individual atoms and their interaction with one another in condensed matter is not easily observed using conventional instruments in the laboratory. This leads to difficulty testing proposed theories about how such a system behaves. Molecular dynamics takes advantage of computer simulations that can test these theories by “measuring” fundamental quantities at discrete time inter...

in this paper the problem of minimizing the total transmitting power subject to a fixedtotal bit rate in ofdm systems is considered. upper bounds on transmitting power and bit rate ofeach subcarrier can also be taken into account. in practice, the number of bits of each subcarriershould be integer and nonnegative. in this paper an analytical optimal solution is derived for thecase of assuming t...

Over the past decade, a number of manuals have been developed for rural road roundabouts in Russian Federation. However, two- and three-lane are designed operated cities Federation do not yet that take into account specific features this urban intersections. The development such involves defining all multi-lane roundabout characteristics which used consistent calculations capacity, traffic dela...

A sufficient condition for exact linearization of a nonlinear system via an exponential transformation is obtained as a Lagrange partial differential equation. When its solution can be found, the transformation is determined such that the nonlinear systemis exactly converted into a linear system with arbitrary dynamics. When the transformation is invertible, this technique can be applied to exa...

A shadowing result is formulated in such a way that it applies in the context of numerical approximations of semilinear parabolic problems. The qualitative behavior of temporally and spatially discrete finite element solutions of a reaction-diffusion system near a hyperbolic equilibrium is then studied. It is shown that any continuous trajectory is approximated by an appropriate discrete trajec...

This paper deals with feedback controller synthesis for timed event graphs in dioids, where the number of initial tokens and time delays are only known to belong to intervals. The synthesis presented here is mainly based on dioid, interval analysis and residuation theory. keyword Discrete-event systems ; Timed event graphs ; Dioid ; Interval analysis ; Residuation theory ; Feedback synthesis