We explore the synchronization and switching behavior of a system of two identical van der Pol oscillators coupled by a stochastically timevarying resistor. Triggered by the time-varying resistor, the system of oscillators switches between synchronized and anti-synchronized behavior. We find that the preference of the synchronized/antisynchronized state is determined by the ratio of the probabi...

In order to simulate and optimize e ciently systems which include micromachined devices, designers need dynamically accurate macromodels for the those devices. Although it is possible to develop such macromodels by hand, it would be vastly more e cient if it were possible to automatically derive such macromodels directly from physical coupled-domain simulation. Although such automatic technique...

this study tries to codify a proper mathematical model which can be predict the costs of repair and maintaining the tractors as precisely as possible for three common models of tractors in shahid beheshti cultivation firm in andimeshk-ahvaz road of dezfoul. studied tractors include: newhland tm155 tractor which is chosen from the most perfect file of 10 tractor machines and jandier tractor-3140...

We performed third-order electrical conductivity measurements on the organic conductor α-(BEDT-TTF)2I3 using an ac bridge technique sensitive to nonlinear signals. Third-order conductance G3 is clearly observed even at low electric fields, and interestingly, critically enhanced above charge-order transition temperature TCO = 136 K. The frequency dependence of incompatible with a percolation mod...

To stabilize the feedback loop of a PLL a lead-lag filter is used, implemented by driving the charge-pump current to a series resistor capacitor network [1]. While many designs have created the needed resistor using the resistance of an amplifier [2], and even made this resistor track the operating frequency [3], all these loops suffer from periodic noise on the control voltage caused by the sm...

chaotic circuits coupled by one resistor. By carrying out that our very simple coupled circuit can exhibit spatiotemporal chaos as well as quasi-synchronizations of chaos in spite of tha t the number of chaotic subcircuit.s is only four. We consider that our model would be good model to clarify mechanism and characteristics of spatiotemporal chaos because it is the simplest real physical system...

We study the effect on the distribution of return periods of rare events of the presence in a time series of finite-term correlations with non-exponential decay. Precisely, we analyze the auto-correlation function and the statistics of the return intervals of extreme values of the resistance fluctuations displayed by a resistor with granular structure in a nonequilibrium stationary state. The r...

The effective conductivity of a fibrous composite is investigated using the Monte Carlo simulation scheme and the finite-element method. The conductive fibers are modeled as randomly distributed resistors in a nonconductive matrix. The gap elements are constructed between neighboring fibers to model the interfiber contact. The resistance of a gap element is defined as a function of the gap dist...

High temperature XRD has been employed to monitor the devitrification of DuPont 951 low temperature co-fued ceramic (LTCC) and DuPont ES4005 resistor ink. The LTCC underwent devitrification to an anorthite phase in the range of 835-875 ‘C with activation energy of 180 kJ/mol as calculated from kinetic data. The resistor paste underwent devitrification in the 835875 ‘C range forming monoclinic a...

Purpose. To apply artificial intelligence (AI) technology for predicting the earthing resistor of underground mines with consideration climate change parameters. Methodology. In coal Vietnam, system are everywhere equipped individual rods combined centralized grounding bed; this significantly influences electrical safety and explosion safety. daily operation, must be measured tested regularly t...