ABSTRACT Propagation effects in the interstellar medium and intrinsic profile changes can cause variability timing of pulsars, which limits accuracy fundamental science done via pulsar timing. One best PSR J1713+0747, has gone through two ‘dip’ events its dispersion measure (DM) time series. If these reflect real electron column density, they should lead to multiple imaging. We show that are we...

Pulsar radio emission undergoes dispersion due to the presence of free electrons in interstellar medium (ISM). The dispersive delay arrival time pulsar signal changes over varying ISM electron column density along line sight. Correcting for this accurately is crucial detection nanohertz gravitational waves using Timing Arrays. In work, we present in-band and inter-band DM estimates four pulsars...

Round Robin (RR) scheduling algorithm is a preemptive scheduling algorithm. It is designed especially for time sharing Operating System (OS). In RR scheduling algorithm the CPU switches between the processes when the static Time Quantum (TQ) expires. RR scheduling algorithm is considered as the most widely used scheduling algorithm in research because the TQ is equally shared among the processe...

Multiscale entropy (MSE) was proposed to overcome the deficiencies of conventional entropy methods when quantifying the complexity of time series. However, MSE is not fast enough for real-time applications because of the use of sample entropy (SampEn). Here, we introduce multiscale DisEn (MDE) as a very fast and powerful method to quantify the complexity of signals. MDE is based on our recently...

The most frequently used statistic in corpus linguistics is the frequency of occurrence of some linguistic variable or the frequency of co-occurrence of two or more linguistic variables. However, it is widely known that frequencies of (co-)occurrence may sometimes be quite misleading. For example, Leech, Rayson, and Wilson (2001) show that while the words HIV, keeper, and lively are about equal...

The packet pair technique estimates the capacity of a path (bottleneck bandwidth) from the dispersion (spacing) experienced by two back-to-back packets [1][2][3]. We demonstrate that the dispersion of packet pairs in loaded paths follows a multimodal distribution, and discuss the queueing effects that cause the multiple modes. We show that the path capacity is often not the global mode, and so ...

Beta diversity can be defined as the variability in species composition among sampling units for a given area. We propose that it can be measured as the average dissimilarity from individual observation units to their group centroid in multivariate space, using an appropriate dissimilarity measure. Differences in beta diversity among different areas or groups of samples can be tested using this...

A technique has been developed to measure the speed of sound in marine sediments at discrete frequencies from 0.6 to 10 kHz by transmitting pulses from acoustic projectors within the water column and measuring the angle to which they are refracted on directional receivers buried in the seabed. The receivers are vectors sensors that measure three-axis acceleration and pressure allowing acoustic ...