High purity germanium (HPGe) detectors are ubiquitous in nuclear physics experiments and are also used in numerous low radioactive background detectors, including the proposed Majorana experiment. Spatial reconstruction of the location of radiation sources from spectral distortions could be used to locate unwanted backgrounds or “hot-spots” inside the detector shield. The effect of the position...

The exponential degree distribution has been found in many real world complex networks, based on which, the random growing process has been introduced to analyze the formation principle of such kind of networks. Inspired from the nonequilibrium network theory, we construct the network according to two mechanisms: growing and adjacent random attachment. By using the Kolmogorov-Smirnov Test (KST)...

In this contribution, an accurate description of the ocean backscatter from a probability density function is proposed. The Elfouhaily spectrum has been used to generate a realistic sea surface. The scattering field will be computed by using the Physical Optics (PO). The K distribution has been already used to characterize the Radar Cross Section (RCS) of the sea surface. However, the probabili...

High purity germanium (HPGe) detectors are ubiquitous in nuclear physics experiments and are also used in numerous low radioactive background detectors. The effect of the position of Co and Cs point sources on the shape of spectra were studied with Monte Carlo and HPGe detector measurements. We briefly confirm previous work on the position dependence of relative heights of peaks. Spectra taken ...

Evaluating data imputation and augmentation performance is a critical issue in science. In statistics, methods like Kolmogorov-Smirnov K-S test, Cramér-von Mises $$W^2$$ , Anderson-Darling $$A^2$$ Pearson’s $$\chi ^2$$ Watson’s $$U^2$$ exists for decades to compare the distribution of two datasets. context generation, typical evaluation metrics have same flaw: They calculate feature’s error glo...

We give direct and inverse approximation theorems for Dirichlet series in Smirnov spaces over convex polygons. We estimate the degree of convergence and the regularity of the functions with moduli of arbitrary order k. Moreover, we consider the influence of differentiability conditions on the rate of approximation and vice versa. This work extends results by Yu. I. Mel’nik and gives an example ...

As a main interference to track circuit signal, the interference of the traction current(ITC) will directly influence the transmission quality of track circuit signal and even lead to signal distortion which would endanger the traffic safety. The ITC has a complicated formation mechanism and it is affected by factors of train compositions, load and running speed, so it is hardly possible to est...