Today and Future Neutrino Experiments at Krasnoyarsk Nuclear Reactor

The results of undergoing experiments and new experiment propositions at Krasnoyarsk underground nuclear reactor are presentedComment: 4 page

On the global Lyapunov reducibility of two-dimensional linear systems with locally integrable coefficients

We show that if a two-dimensional linear nonstationary control system with locally integrable and integrally bounded coefficients is uniformly completely controllable, then the corresponding linear differential system closed with a measurable bounded control linear in the state variables has the property of global Lyapunov reducibility

The experimental research of the electric characteristics of discharge in the quasi-steady plasma accelerator with the longitudinal magnetic field

Installation of the coaxial quasi-steady high-current one-stage plasma accelerator with a longitudinal magnetic field is created. The lead experiments have shown an opportunity of realization of the discharges, formation of the ionization front and generation of the plasma streams at the presence of a longitudinal field in the accelerator channel. The currentvoltage characteristics of the discharge at the presence and absence of a longitudinal field are measured. It is established that a weak longitudinal field does not render the appreciable influence on the integrated characteristics of discharge in the accelerator with the rod anode in an ion current transport regime.Створено установку коаксіального квазістаціонарного сильнострумового одноступеневого плазмового прискорювача з подовжнім магнітним полем. Проведено експерименти, які продемонстрували можливість здійснення розрядів, формування фронту іонізації й генерації потоків плазми за умови існування подовжнього магнітного поля в каналі прискорювача. Виміряні вольтамперні характеристики розряду при наявності та відсутності подовжнього поля. Встановлено, що слабке подовжнє поле не створює значного впливу на інтегральні характеристики розряду в прискорювачі зі стрижневим анодом в режимі іонного струмопереносу.Создана установка коаксиального квазистационарного сильноточного одноступенчатого плазменного ускорителя с продольным магнитным полем. Проведенные эксперименты продемонстрировали возможность осуществления разрядов, формирования фронта ионизации и генерации потоков плазмы при наличии продольного поля в канале ускорителя. Измерены вольтамперные характеристики разряда при наличии и отсутствии продольного поля. Установлено, что слабое продольное поле не оказывает заметного влияния на интегральные характеристики разряда в ускорителе со стрежневым анодом в режиме ионного токопереноса

Prospects and possibilities of using thermomechanical microrobots for solving technological tasks in space

The possibilities of microrobots for inspection and technological operations on spacecraft board and in open space are analyzed. Utilization of such robots for operations on outer hulls of spacecraft and on internal units and aggregates is discussed

Accurate spline solutions of the Dirac equation with parity-nonconserving potential

The complete system of the B-spline solutions for the Dirac equation with the parity-nonconserving (PNC) weak interaction effective potential is obtained. This system can be used for the accurate evaluation of the radiative corrections to the PNC amplitudes in the multicharged ions and neutral atoms. The use of the scaling procedure allows for the evaluation of the PNC matrix elements with relative accuracy $10^{-7}$.Comment: 7 page

Analyzing solar, cosmic, and geophysical events in September 2017 using SHIСRA SB RAS complex observations

We report the results of monitoring of cosmic rays and geomagnetic field along 210 magnetic meridians in Yakutia in the first half of September 2017. The energy spectrum of solar cosmic rays during Ground Level Enhancement in September 10, 2017 is estimated as J=3027E–1.99exp(–E/729 MeV). We present the results of the forecast and complex analysis of the magnetic storm on September 7–9, 2017 with Dst=–124 nT. The forecast lead time is about one day. We examine how the storm affected the electric potential and VLF signal propagation from RSDN-20 radio navigation stations. Irregular Pi3–Pi1 pulsations occurred during the September 8, 2017 magnetic storm from 12 to 20 UT. The pulsations were accompanied by variations in electrotelluric potentials and geomagnetic fields with the correlation coefficient between them ρ(E, H)=0.5÷0.9. The effects of the magnetic storm manifested themselves as an increase in the attenuation and a decrease in the phase delay of VLF radio signals

Subcarrier Wave Quantum Key Distribution in Telecommunication Network with Bitrate 800 kbit/s

In the course of work on creating the first quantum communication network in Russia we demonstrated quantum key distribution in metropolitan optical network infrastructure. A single-pass subcarrier wave quantum cryptography scheme was used in the experiments. BB84 protocol with strong reference was chosen for performing key distribution. The registered sifted key rate in an optical cable with 1.5 dB loss was 800 Kbit/s. Signal visibility exceeded 98%, and quantum bit error rate value was 1%. The achieved result is a record for this type of systems

Event-driven simulation of the state institution activity for the service provision based on business processes

The paper presents an approach, based on business processes, assessment and control of the state of the state institution, the social insurance Fund. The paper describes the application of business processes, such as items with clear measurable parameters that need to be determined, controlled and changed for management. The example of one of the business processes of the state institutions, which shows the ability to solve management tasks, is given. The authors of the paper demonstrate the possibility of applying the mathematical apparatus of imitative simulation for solving management tasks

Precise calculation of parity nonconservation in cesium and test of the standard model

We have calculated the 6s-7s parity nonconserving (PNC) E1 transition amplitude, E_{PNC}, in cesium. We have used an improved all-order technique in the calculation of the correlations and have included all significant contributions to E_{PNC}. Our final value E_{PNC} = 0.904 (1 +/- 0.5 %) \times 10^{-11}iea_{B}(-Q_{W}/N) has half the uncertainty claimed in old calculations used for the interpretation of Cs PNC experiments. The resulting nuclear weak charge Q_{W} for Cs deviates by about 2 standard deviations from the value predicted by the standard model.Comment: 24 pages, 8 figure