Распознавание изображений лиц на основе кластеризации

This article describes the use of clustering for face recognition image. Clustering was performed using a recurrent neural network used at two stages of the recognition process. The algorithm includes the recognition process itself perform clustering pixel brightness image, calculating image information close proximity and clustering measures to in order to obtain the cluster containing the original similar images

Прибор для измерения параметров магнитопровода бетатрона

В данной выпускной квалификационной работе рассмотрен способ контроля параметров центральных вкладышей малогабаритного бетатрона. На основании теоретических данных и экспериментально полученных зависимостей был разработан прибор, позволяющий оценивать качество изготовления центральных вкладышей магнитопроводящей системы бетатрона. В основе принципа работы прибора лежит способ определение добротности колебательного контура по скорости затухания его электрических колебаний.The method of controlling the parameters of the central inserts block of a betatron was considered in this final qualifying work. The device, which can measure the quality of manufacturing of central inserts block of the magnetic system of the betatron, was developed on the basis of theoretical data and experimentally obtained dependences. The principle of operation of the device is based on the method for determining the quality factor of an oscillating circuit in terms of the rate of damping of its electric oscillations

Low Voltage Control for the Liquid Argon Hadronic End-Cap Calorimeter of ATLAS

At the ATLAS detector a SCADA system surveys and controls the sub- detectors. The link is realized by PVSS2 software and a CanBus hardware system. The low voltages for the Hadronic Endcaps of the liquid argon calorimeter are produced by DC/DC-converters in the power boxes and split into 320 channels corresponding to the pre- amplifier and summing boards in the cryostat. Six units of a prototype distribution board are currently under test. Each of it contains 2 ELMBs as CanBus interface, a FPGA of type QL3012 for digital control and 30 low voltage regulators for the individual fine adjustments of the outputs

Activation in the COMPTEL double-scattering gamma-ray telescope

Abstract-The COMPTEL gamma-ray telescope has been operating in low Earth orbit for six years, since the launch of the Compton Gamma-Ray Observatory in April 1991. Comparisons of data for different orbits and epochs show evidence of activation on time scales from minutes (27Mg, q,2=9.5 min) to years C2Na, q&.58 yr). The activation is correlated with both the orbital altitude and solar cosmic-ray modulation. Because it requires coincident measurements in two different detectors, COMPTEL is most susceptible to instrumental background events in which two or more photons are produced simultaneously

COMPTEL 1.8 MeV all sky survey: The Cygnus region

We present an updated version of COMPTEL’s 1.809 MeV sky survey. Based on eight years of observations we compare results from different imaging techniques using background from adjacent energy bands. We confirm the previously reported characteristics of the galactic 1.809 MeV emission, specifically an extended galactic ridge emission, mainly concentrated towards the inner galaxy, a peculiar emission feature in the Cygnus region, and a low-intensity ridge extending towards Carina and Vela. Because this gamma ray line is due to the decay of radioactive 26Al, predominantly synthesized in massive stars, one anticipates flux enhancements aligned with regions of recent star formation. This is born out by the observations. In particular the Cygnus feature, first presented in 1996 based on three years of COMPTEL data, is confirmed. Based on the stellar population we distinguish three prominent areas in this region, for which we separately derive fluxes, and discuss interpretations