The Application Potential of Silicon Photomultipliers for a Camera of a Small-Size Cherenkov Gamma-Ray Telescope for Reducing the Detection Threshold

Technical Physics - Source and noise signals in a new camera of the TAIGA-IACT Cherenkov γ-ray telescope based on silicon photomultipliers (SiPM) have been simulated. It is shown that...     

Two problems in the comparison of point estimates

In this paper we compare maximal likelihood and unbiased estimates with the help of a quadratic loss function. Such problems are considered for the negative binomial and multidimensional Poisson distributions.Translated from Staticheskie Metody, pp. 160–169, 1978.     

Limit theorems for Markov random walks with a fixed number of certain transitions

The limit behavior of Markov chains with discrete time and a finite number of states (MCDT) depending on the number n of its steps has been almost completely investigated [1–4]. In [5], MCDT with forbidden transitions were investigated, and in [6], the sum of a random number of functionals of random variables related by a homogeneous Markov chain (HMC) was considered. In the present paper, we continue the investigation of the limit behavior of the MCDT with random stopping time which is determined by a Markov walk plan II with a fixed number of certain transitions [7, 8]. Here we apply a method similar to that of [6], which allows us to obtain, together with some generalizations of the results of [6], a number of new assertions. Translated fromStatisticheskie Metody Otsenivaniya i Proverki Gipotez, pp. 119–130, Perm, 1990.     

Double-Membrane Sampling System in a Mass Spectrometer for the Study of Exhaled Air

Technical Physics - A double-membrane sample-introduction system is described that enables mass spectrometric determination of volatile organic compounds in air, while ensuring their detection...     

Electronic and software systems of an automated portable static mass spectrometer

Technical Physics - The electronic systems of a small high-sensitivity static mass spectrometer and software and hardware tools, which allow one to determine trace concentrations of gases and...