Разработка физических и логических метрик для задачи многокритериальной оптимизации информационной нагрузки при структуризации корпоративного центра данных

В статті розглядаються питання дослідження та розробки фізичних і логічних метрик засобів обробки інформації в корпоративних прикладних мережах, що виникає при їх оцінюванні та виборі в задачі багатокритеріальної оптимізації інформаційного навантаження компонентів таких мереж. Такі метрики серверів БД та файлових серверів, систем документообігу та архівації даних, керованих мережевих пристроїв, що виконують функцію фільтрації на рівні додатків, тощо, враховують вимоги з точки зору безпеки та з урахуванням обмежень по управлінню при структуризації корпоративного датацентру.In the article the questions of research-and-development physical and logical birth-certificates of facilities of data processing are examined in the corporate application networks, that arises up at their evaluation and choice in the multicriterion optimization task of the informative loading of network components. Such birth-certificates of DB servers and file servers, docflow systems and archiving of information, guided networkings issues which execute the filtration function at the application level, and others like that, take into account security and control requirements at structuring of Datacenter.В статье рассматриваются вопросы исследования и разработки физических и логических метрик средств обработки информации в корпоративных прикладных сетях, что возникает при их оценивании и выборе в задаче многокритериальной оптимизации информационной нагрузки компонентов этих сетей. Такие метрики серверов БД и файловых серверов, систем документооборота и архивации данные, управляемых сетевых устройств, которые выполняют функцию фильтрации на уровне приложений, и тому подобное, учитывают требования по безопасности и с учетом ограничений по управлению при структуризации корпоративного датацентра

Search for double beta decay processes in 106Cd with the help of 106CdWO4 crystal scintillator

A search for the double beta processes in 106Cd was carried out at the Gran Sasso National Laboratories of the INFN (Italy) with the help of a 106CdWO4 crystal scintillator (215 g) enriched in 106Cd up to 66%. After 6590 h of data taking, new improved half-life limits on the double beta processes in 106Cd were established at the level of 10^{19}-10^{21} yr; in particular, T_{1/2}(2\nu \epsilon \beta^+) > 2.1 10^{20} yr, T_{1/2}(2\nu 2\beta^+) > 4.3 10^{20} yr, and T_{1/2}(0\nu 2\epsilon) > 1.0 10^{21} yr. The resonant neutrinoless double electron captures to the 2718 keV, 2741 keV and 2748 keV excited states of 106Pd are restricted to T_{1/2}(0\nu 2K) > 4.3 10^{20} yr, T_{1/2}(0\nu KL1) > 9.5 10^{20} yr and T_{1/2}(0\nu KL3) > 4.3 10^{20} yr, respectively (all limits at 90% C.L.). A possible resonant enhancement of the 0\nu 2\epsilon processes is estimated in the framework of the QRPA approach. The radioactive contamination of the 106CdWO4 crystal scintillator is reported.Comment: Minor changes of half-life limits after improving the data analysis; version accepted for publication on Phys. Rev.

Searches for neutrinoless resonant double electron captures at LNGS

Several experiments were performed during last years at underground (3600 m w.e.) Laboratori Nazionali del Gran Sasso (LNGS) of the INFN (Italy) to search for resonant 2$\varepsilon0\nu$ captures in 96Ru, 106Cd, 136Ce, 156Dy, 158Dy, 180W, 184Os, 190Pt with the help of HP Ge semiconductor detectors, and ZnWO4 and 106CdWO4 crystal scintillators. No evidence for r-2$\varepsilon0\nu$ decays was found, and only T_{1/2} limits were established in the range of 10^{14}-10^{21} yr.Comment: Proceedings of TAUP 2011 Conferenc

Low background detector with enriched 116CdWO4 crystal scintillators to search for double beta decay of 116Cd

A cadmium tungstate crystal boule enriched in $^{116}$Cd to 82% with mass of 1868 g was grown by the low-thermal-gradient Czochralski technique. The isotopic composition of cadmium and the trace contamination of the crystal were estimated by High Resolution Inductively Coupled Plasma Mass-Spectrometry. The crystal scintillators produced from the boule were subjected to characterization that included measurements of transmittance and energy resolution. A low background scintillation detector with two $^{116}$CdWO$_4$ crystal scintillators (586 g and 589 g) was developed. The detector was running over 1727 h deep underground at the Gran Sasso National Laboratories of the INFN (Italy), which allowed to estimate the radioactive contamination of the enriched crystal scintillators. The radiopurity of a third $^{116}$CdWO$_4$ sample (326 g) was tested with the help of ultra-low background high purity germanium $\gamma$ detector. Monte Carlo simulations of double $\beta$ processes in $^{116}$Cd were used to estimate the sensitivity of an experiment to search for double $\beta$ decay of $^{116}$Cd.Comment: 24 pages, 13 figures, 3 tables, accepted for publication on Journal of Instrumentatio

Search for double β decay of 106Cd by using isotopically enriched 106CdWO4 crystal scintillator

A search for double beta processes in 106Cd was carried out at the Gran Sasso National Laboratories of the INFN (Italy) by using a CdWO4 crystal scintillator (mass of 215 g) enriched in 106Cd up to 66%. After 6590 h of data taking, half-life limits on double beta processes in 106Cd were set at level of 10^19 -10^21 yr. A possible resonant enhancement of the 0 neutrinos 2beta processes has also been estimated in the framework of the QRPA approac