In this paper we analyse an extremum controller based on a pulse technique. The idea is to superimpose probing pulses to the control signal and use for feedback the size of the pulse response in the output. The probing control strategy has been used with success for the control of the substrate feeding in E. coli cultivations, see [1]. The analysis is done here for systems of Hammerstein type w...

In a recent model Choudhury proposed that a collapsing matter generates an adiabatic pressure which can be used to explain the acceleration of the physical universe under certain approximation. In this work we superimpose the core pressure generated through the entropy of the blackhole. We have ignored the blackhole internal energy change during this process. We have then calculated both Hubble...

In order to improve the interaction of students in English teaching and effect teaching, this paper combines virtual reality algorithms construct an interactive space for teaching. Furthermore, article advances method from a physics standpoint uses Fourier transform superimpose cross-correlation function frequency domain. At same time, study convert overlaid result into time domain, eliminating...

The Arkhangelsk Region, North-West of the Russian Federation, has an important pulp and paper production whose plants generate industrial sludge which is mixed with municipal sludge. Thermal degradations under nitrogen or synthetic air this were performed four low temperature ramps 5, 10, 15 20 °C/min. Kinetic modeling pyrolysis combustion experiments was applying Extended Independent Parallel ...

Metasurfaces that can realize the polarization manipulation of electromagnetic waves on sub-wavelength scale have become an emerging research field. Here, a novel strategy combining metasurface and Fresnel zone plate to form is proposed conversion from nearly arbitrary polarizations fixed polarization. Specifically, when one polarized wave incident adjacent ring zones constructed by different t...

Room-and-pillar mining with pillar recovery has historically been associated with more than 25% of all ground fall fatalities in underground coal mines in the United States. The risk of ground falls during pillar recovery increases in multiple-seam mining conditions. The hazards associated with pillar recovery in multiple-seam mining include roof cutters, roof falls, rib rolls, coal outbursts, ...

One of the controversial methodological topics in social and behavioral sciences is (ab)use Likert Scale items, Likert-type items ranked ordered response categories. The debate whether parametric tests can be legitimately conducted on technically ordinal categories that are represented with numbers. Participants answered survey questions moral disengagement, where we changed intervals seven tes...

Univariate visualizations like histograms, rug plots, or box plots provide concise visual summaries of distributions. However, each individual visualization may fail to robustly distinguish important features a distribution, sufficient information for all the relevant tasks involved in summarizing univariate data. One solution is juxtapose superimpose multiple same chart, as Allen et al.'s [APW...