COMPARISON OF SOLVING A STIFF EQUATION ON A SPHERE BY THE MULTI-LAYER METHOD AND METHOD OF CONTINUING AT THE BEST PARAMETER

A stiff equation, linked with the solution of singularly perturbed differential equations with the use of standard methods of numeral solutions of simple differential equations often lead to major difficulties. First difficulty is the loss of stability of the counting process, when small errors on separate steps lead to an increase in the systematic errors in general. Another difficulty is, directly linked with the first one, consists of the need of decreasing the integrating step by a lot, which leads to a major decrease in the time taken for the calculations. On an example of a boundary value problem for a differential equation of second power on a sphere, comparison of our two approaches of constructing approximate values are held. The first approach is connected with the construction of an approximate multi-layer solution of the problem and is based on the use of recurrent equalities, that come out from classical numeral methods to the interval of a non-constant length. As a result, a numeral, approximated solution is replaced with an approximate solution in form of a function, which is easier to use for adaptation, building a graph and other needs. The second approach is linked with the continuation of the solutions by the best parameter. This method allows us to decrease majorly the number of steps and increase the stability of the computing process compared to standard methods

Physics case for an LHCb Upgrade II - Opportunities in flavour physics, and beyond, in the HL-LHC era

The LHCb Upgrade II will fully exploit the flavour-physics opportunities of the HL-LHC, and study additional physics topics that take advantage of the forward acceptance of the LHCb spectrometer. The LHCb Upgrade I will begin operation in 2020. Consolidation will occur, and modest enhancements of the Upgrade I detector will be installed, in Long Shutdown 3 of the LHC (2025) and these are discussed here. The main Upgrade II detector will be installed in long shutdown 4 of the LHC (2030) and will build on the strengths of the current LHCb experiment and the Upgrade I. It will operate at a luminosity up to 2×1034 cm−2s−1, ten times that of the Upgrade I detector. New detector components will improve the intrinsic performance of the experiment in certain key areas. An Expression Of Interest proposing Upgrade II was submitted in February 2017. The physics case for the Upgrade II is presented here in more depth. CP-violating phases will be measured with precisions unattainable at any other envisaged facility. The experiment will probe b → sl+l−and b → dl+l− transitions in both muon and electron decays in modes not accessible at Upgrade I. Minimal flavour violation will be tested with a precision measurement of the ratio of B(B0 → μ+μ−)/B(Bs → μ+μ−). Probing charm CP violation at the 10−5 level may result in its long sought discovery. Major advances in hadron spectroscopy will be possible, which will be powerful probes of low energy QCD. Upgrade II potentially will have the highest sensitivity of all the LHC experiments on the Higgs to charm-quark couplings. Generically, the new physics mass scale probed, for fixed couplings, will almost double compared with the pre-HL-LHC era; this extended reach for flavour physics is similar to that which would be achieved by the HE-LHC proposal for the energy frontier

LHCb upgrade software and computing : technical design report

This document reports the Research and Development activities that are carried out in the software and computing domains in view of the upgrade of the LHCb experiment. The implementation of a full software trigger implies major changes in the core software framework, in the event data model, and in the reconstruction algorithms. The increase of the data volumes for both real and simulated datasets requires a corresponding scaling of the distributed computing infrastructure. An implementation plan in both domains is presented, together with a risk assessment analysis

The Technology to Identify Firebreak Plowing Objects Based on the Satellite Data of the Earth Remote Sensing

This work describes the technology to identify firebreak plowing objects of agriculture fields based on the satellite data of the Earth Remote Sensing within the medium and high spatial resolution. The technology uses a model of the firebreak plowing object, vegetation indexes and spatial relations between objects

The Technology to Identify Firebreak Plowing Objects Based on the Satellite Data of the Earth Remote Sensing

This work describes the technology to identify firebreak plowing objects of agriculture fields based on the satellite data of the Earth Remote Sensing within the medium and high spatial resolution. The technology uses a model of the firebreak plowing object, vegetation indexes and spatial relations between objects

The objective assessment of the image quality based on the geometrical concentration

The method of the objective evaluation of the satellite images based on the calculation of the geometrical concentration using triangulation Delaunay is proposed. Such assessment allows to estimate the degree of the image distortion and can be used for indexing and filtration data in the satellite images catalogues

Interface Model for Spatial Objects Monitoring Task Setting

The research is devoted to the study of human-computer interaction in the context of interaction of end users (EU) and multipurpose remote monitoring systems (MRMS) for spatial objects. The study is aimed at the formation of conceptual aspects of building graphical interface for setting monitoring tasks. It defines a global structure for communication between end users and multi-purpose remote monitoring systems (MRMS) in the form of a dialogue and target parameters for the quality of the dialogue tools. The task setting interface has been tested in practice on the basis of the ISIT SFU remote monitoring system. An example of task setting for grain crops growth monitoring has been reviewed

Software Technology Information Infrastructure Support for the Tasks Territorial Administration

Рассмотрены вопросы построения программно-технологической инфраструктуры информационной поддержки решения задач территориального управления на основе методов дистанционного зондирования Земли. Сформулированы основные требования к программно- аппаратному комплексу, его архитектура, структура программно-технических средств, технологии взаимодействия с внешними системами и проиллюстрированы примеры решения прикладных задач применительно к территории Красноярского края.The questions of development of program-technological infrastructure for information support of solving task of territorial management based on methods of remote sensing of the Earth are considered in this article. General requirements of software and hardware complex were formulated. Architecture and structure of this complex also technologies of interaction with extended systems were described. Examples of solving of application tasks of Krasnoyarsk region were given

Software Technology Information Infrastructure Support for the Tasks Territorial Administration

Рассмотрены вопросы построения программно-технологической инфраструктуры информационной поддержки решения задач территориального управления на основе методов дистанционного зондирования Земли. Сформулированы основные требования к программно- аппаратному комплексу, его архитектура, структура программно-технических средств, технологии взаимодействия с внешними системами и проиллюстрированы примеры решения прикладных задач применительно к территории Красноярского края.The questions of development of program-technological infrastructure for information support of solving task of territorial management based on methods of remote sensing of the Earth are considered in this article. General requirements of software and hardware complex were formulated. Architecture and structure of this complex also technologies of interaction with extended systems were described. Examples of solving of application tasks of Krasnoyarsk region were given

The LHCb upgrade I

International audienceThe LHCb upgrade represents a major change of the experiment. The detectors have been almost completely renewed to allow running at an instantaneous luminosity five times larger than that of the previous running periods. Readout of all detectors into an all-software trigger is central to the new design, facilitating the reconstruction of events at the maximum LHC interaction rate, and their selection in real time. The experiment's tracking system has been completely upgraded with a new pixel vertex detector, a silicon tracker upstream of the dipole magnet and three scintillating fibre tracking stations downstream of the magnet. The whole photon detection system of the RICH detectors has been renewed and the readout electronics of the calorimeter and muon systems have been fully overhauled. The first stage of the all-software trigger is implemented on a GPU farm. The output of the trigger provides a combination of totally reconstructed physics objects, such as tracks and vertices, ready for final analysis, and of entire events which need further offline reprocessing. This scheme required a complete revision of the computing model and rewriting of the experiment's software