Modern scientific projects generate a huge amount of data that needs to be stored, processed and analyzed. It is often impossible to solve such tasks within a single data center. Therefore, it is ...necessary to prepare a distributed infrastructure consisting of hardware, specialized software and communication channels. One of the important preliminary steps in building such an infrastructure is to study existing solutions and select a suitable model for distributed data storage, processing, and analysis. Building a distributed infrastructure requires software capable of solving tasks such as authentication and authorization, the creation of an information system, monitoring tools, the management of computing tasks, data storage and transfer. In this paper, a study of existing solutions was carried out and a particular model was selected for creating a CERN-JINR-INP-KazNU data center, which will be further integrated into a distributed infrastructure.
A project of the OLVE-HERO space detector for measurement of the cosmic rays in the range 10
12
–10
16
eV is proposed. It will include a large ionization-neutron 3D calorimeter with a high ...granularity and geometric factor of ∼16 m
2
sr. The main OLVE-HERO detector is expected to be an image calorimeter with boron loaded plastic scintillator and a tungsten absorber. Such a calorimeter allows to measure an additional neutron signal that should improve the detector energy resolution and also the rejection power between electromagnetic and nuclear components of cosmic rays. Improvement by factor 30–50 is expected. The OLVE-HERO detector prototype was designed and tested at SPS CERN beam during Pb ion run in 2018. Test results and the corresponding Monte-Carlo simulation are presented.
A project of the OLVE-HERO space detector for measurement of the cosmic rays in the range 10
12
–10
16
eV is proposed. It will include a large ionization-neutron 3D calorimeter with a high ...granularity and geometric factor of ~16 m
2
sr. The main OLVE-HERO detector is expected to be an image calorimeter with boron loaded plastic scintillator and a tungsten absorber. Such a calorimeter allows to measure an additional neutron signal that should improve the detector energy resolution and also the rejection power between electromagnetic and nuclear components of cosmic rays. Improvement by factor 30–50 is expected. The OLVE-HERO detector prototype was designed and tested at SPS CERN beam during Pb ion run in 2018. Test results and the corresponding Monte-Carlo simulation are presented.
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The paper is devoted to the modeling and analysis of data detected by the TAIGA-IACT installation in the stereo mode. Five Imaging Atmospheric Cherenkov Telescopes (IACT) with a viewing angle of ...9.6° are expected to be included in the installation. Today there are three telescopes spaced far apart (from 320 to 500 m) in the installation. The effective area of the installation is as large as 0.6 km
2
; therefore, it is possible to conduct statistically significant measurements of weak γ-ray sources in the energy range above 10 TeV over a reasonable observation time (300–400 h). The Monte Carlo procedure for simulating the hadrons and γ-rays detected by the telescopes is described as is the procedure for reconstructing the parameters of extensive air showers, such as the arrival direction of an event, the axis position, the depth of the maximum of shower development (
X
max
), and the primary-particle energy. In order to solve the problem of γ-hadron separation, the criteria for selecting γ-rays detected in the stereo mode have been optimized and the effective area of the installation has been calculated.
Vaccination has been identified as a critical method of disease control in the context of the current COVID-19 pandemic. The goal of this review is to update information on vaccine development and to ...identify areas of concern that require further research. We reviewed the literature on the development of COVID-19 vaccines, their efficacy, and use in special populations, as well as current vaccination strategies. To date, 170 vaccines are in clinical development, with 41 being already approved for use in various countries. The majority of vaccines approved for human use are vector-, subunit-, DNA-, or mRNA-based vaccines, or inactivated viruses. Because of the ongoing mutation of the SARS-CoV-2 virus, well-studied vector vaccines are losing relevance due to the ability of new virus strains to bypass neutralizing antibodies. Simultaneously, PS-based vaccines are becoming more popular. There is mounting evidence that the immunogenicity of COVID-19 vaccines is linked to their clinical efficacy. This has resulted in a shift in vaccination strategies, as well as the use of booster doses and revaccination. Furthermore, vaccination restrictions for children, pregnant women, the elderly, and people with chronic immunosuppressive diseases have been lifted, allowing more people to be vaccinated. New data on vaccine safety, including the incidence of serious adverse events, have been collected. Despite significant advances in the development of and research on COVID-19 vaccines, many questions remain that require further investigation.
This paper concerns main results of research on interacting process of blade and ice during mechanical corrosion. It describes experimental research conditions and their main results. The paper shows ...argument of reasonable geometrical parameters of blades providing minimal storage density value of tested process.
The article discusses the possibility of increasing the efficiency of the working attachments of road machines and their adaptation to work in various conditions, due to the group equipping with ...single saw blades placed according to specially developed schemes. The main results of studies of the processes of interaction of a saw blade moving in space with a variable speed with ice during its mechanical destruction are presented. The conditions for conducting experimental studies, the composition and general structure of the main and auxiliary laboratory equipment used are described. The main results of laboratory research are stated. Taking these results into account, the specific energy intensity of the process under study was calculated, the graphs of the dependence of the specified parameter on the cutting speed were plotted, and conclusions were formulated on the work. The substantiation of rational operating parameters of saw blades is given, which ensure the minimum specific energy consumption of the process under study.
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