scholarly journals ALGORITHMS IN TAKING TACTICAL DECISIONS

2017 ◽  
Vol 17 ◽  
pp. 76-86
Author(s):  
O. Yu. Bululukov
Keyword(s):  
Initial Data ◽  
Mathematical Knowledge ◽  
Automated Systems ◽  
Mathematical Methods ◽  
Initial Information ◽  
Logical Sequence ◽  
Wide Range ◽  
Mathematical Algorithms ◽  
Tactical Decisions ◽  
Optimization Efficiency

The issues of using mathematical knowledge in the investigation of crimes are considered. It’s indicated that the application of mathematical methods in the investigation is limited by the wide range of ways of establishing evidentiary information, which are not always subjected to the mathematical calculations. We have drawn attention to the fact that the modern use of mathematical methods is basically reduced to the use of algorithms in various aspects of the process of investigating crimes. It’s defined that the purpose of algorithmic investigation activity is its optimization, efficiency, objectivity of the results, reduction of the terms of investigation and creation of real conditions for the development of automated systems for processing and evaluating of the received information, taking decisions in certain typical situations. The importance of criminalistic algorithms in choosing optimal tactical solutions is substantiated in the situations, where there are several variants of solutions and the ambiguity of the expected results when making a decision. Two groups of investigation tasks are presented which are divided among themselves, depending on the clarity of the initial information, which was used in their formation. There is shown a relationship that exists between the analysis of the initial information in the formulation of a tactical task and the choice of an algorithm for its solution by making tactical decisions. It’s pointed out that the uncertainty and incompleteness of the initial data of the tactical task considerably complicates the use of mathematical algorithms. There is analyzed the use of algorithms in the construction: of a private technique for investigating crimes; of a tactical operation; when forming a system of tactical methods. Critical remarks are presented about the available modern algorithms (programs) of the investigator’s actions as non-concrete, multivariate and not reflecting the logical sequence of actions aimed at accomplishing the tasks of investigation and achieving the desired result.

scholarly journals Prototype Design and Experimental Evaluation of Autonomous Collaborative Communication System for Emerging Maritime Use Cases

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3871
Author(s):  
Jiri Pokorny ◽  
Khanh Ma ◽  
Salwa Saafi ◽  
Jakub Frolka ◽  
Jose Villa ◽  
...  
Keyword(s):  
Communication System ◽  
Autonomous Vehicles ◽  
High Speed ◽  
High Capacity ◽  
Workplace Safety ◽  
Unmanned Vehicles ◽  
Use Cases ◽  
Automated Systems ◽  
Collaborative Communication ◽  
Wide Range

Automated systems have been seamlessly integrated into several industries as part of their industrial automation processes. Employing automated systems, such as autonomous vehicles, allows industries to increase productivity, benefit from a wide range of technologies and capabilities, and improve workplace safety. So far, most of the existing systems consider utilizing one type of autonomous vehicle. In this work, we propose a collaboration of different types of unmanned vehicles in maritime offshore scenarios. Providing high capacity, extended coverage, and better quality of services, autonomous collaborative systems can enable emerging maritime use cases, such as remote monitoring and navigation assistance. Motivated by these potential benefits, we propose the deployment of an Unmanned Surface Vehicle (USV) and an Unmanned Aerial Vehicle (UAV) in an autonomous collaborative communication system. Specifically, we design high-speed, directional communication links between a terrestrial control station and the two unmanned vehicles. Using measurement and simulation results, we evaluate the performance of the designed links in different communication scenarios and we show the benefits of employing multiple autonomous vehicles in the proposed communication system.

Iterative modeling is as a tool for selecting a geological basis for hydrodynamic modeling and development design

2021 ◽  
pp. 111-126
Author(s):  
A. A. Agarkova ◽  
S. E. Shebankin ◽  
M. A. Tukaev ◽  
M. S. Karmazin
Keyword(s):  
Initial Data ◽  
Hydrodynamic Modeling ◽  
Usual Method ◽  
Gas Condensate ◽  
Digital Model ◽  
Geological Model ◽  
Field Case ◽  
Field Development ◽  
Wide Range

The usual method for constructing a digital model of a field is based on hydrodynamic modeling using the basic implementation of a geological model, usually requires additional adjustments to the initial data, and as a result, leads to a wide range of uncertainties in assessing the predicted technological indicators of field development. The PK1 reservoir of a gas condensate field case study discuss-es the method of iterative modeling, which makes it possible to comprehensively approach the assessment of possible uncertainties.

scholarly journals «Atom» software for atomic spectral analysis

2019 ◽  
Vol 85 (1II)) ◽  
pp. 103-111 ◽  
Author(s):  
V. G. Garanin ◽  
O. A. Neklyudov ◽  
D. V. Petrochenko ◽  
Z. V. Semenov ◽  
S. V. Pankratov ◽  
...  
Keyword(s):  
Atomic Absorption ◽  
Electrothermal Atomic Absorption Spectrometry ◽  
Absorption Spectrometry ◽  
Atomic Emission ◽  
Emission Spectrometry ◽  
Mathematical Methods ◽  
Element Analysis ◽  
Continuum Source ◽  
Wide Range ◽  
Speed Up

«Atom» software is used in integrated spectral devices for atomic emission and atomic absorption analysis produced by «VMK-Optoélektronika». Development of the new spectral instruments and upgrading of existing devices, birth of new mathematical methods and algorithms for processing spectral information, as well as user stories motivate and promote improvement of the software. This paper presents the main developments and most noticeable changes in «Atom «software for the period 2017 – 2018. The developed 64-bit version of «Atom» software removed the limitation on the amount of recorded sequences of spectra and significantly speeded up their processing by parallelizing the calculations on the processor cores (rather important step, for example, in scintillation atomic emission spectrometry). To implement continuum source electrothermal atomic absorption spectrometry for simultaneous multi-element analysis, we have developed the «Automatic Dispenser» and «Absorption Spectrometer» tools and have implemented the method proposed by D.A. Katskov to linearize calibration dependences in a wide range of concentrations. The possibility of spectrophotometric determination of substances in the solutions of their mixtures has been also implemented. The «Barcode Scanner» and the «Automatic Start of Measurement» tools have been developed to speed up and automate the analysis procedure. The software is supplemented with a set of useful functions designed for further development of analytical methods and programs of analysis.

scholarly journals Webliometric Indicators as Elements of the AI Technique of Estimation of the Language Teacher’s Net Proficiency

2021 ◽  
Author(s):  
Matukhin Pavel ◽  
Provotorova Elena ◽  
Petrova Marina ◽  
Gracheva Olga ◽  
Rybakova Irina ◽  
...  
Keyword(s):  
Artificial Intelligence ◽  
Big Data ◽  
Language Teachers ◽  
Initial Information ◽  
Internet Resources ◽  
Wide Range ◽  
Search Systems

The article deals with the issues related to the scientometric indexing of the net resources of the group of language teachers and scientists. A detailed accounting of all types of publications allows us to obtain initial information about the level of their Internet engagement. The analysis was carried out including a wide range of genres of publications, the structure of publications, the format and language of publications, the corpus of academic subjects, the language aspects of the publications under study, the composition of the authors of publications, based on their position. The authors’ use of wide opportunities to present their developments on various Internet resources provides them with the opportunity to be detected by search systems based on artificial intelligence (AI) as well as Big Data techniques and to be most fully characterized by existing and prospective scientometric systems.

scholarly journals ANOVA to Compare Three Methods to Track COVID-19 in Nine Countries

2021 ◽  
Author(s):  
◽  
Jorge Juárez-Lucero ◽  
Keyword(s):  
United States ◽  
United Kingdom ◽  
Initial Data ◽  
Nonlinear Regression ◽  
United States Of America ◽  
Mathematical Methods ◽  
Disease Trajectory ◽  
Significant Difference ◽  
The One ◽  
One Way Anova

A new coronavirus denominated first 2019-nCoV and later SARS-CoV-2 was found in Wuhan, China in December of 2019. This paper compares three mathematical methods: nonlinear regression, SIR, and SEIR epidemic models, to track the covid-19 disease in nine countries affected by the SARS-CoV-2 virus, to help epidemiologists to know the disease trajectory, considering initial data in the pandemic, mainly 100 days from the beginning. To evaluate the results obtained with the three methods one-way ANOVA is applied. The average of predicted infected cases with SARS-CoV-2, obtained with the mentioned methods was: for United States of America 1,098,508, followed by Spain with 226,721, Italy with 202,953, France with 183,897 United Kingdom with 182,190, Germany with 159,407, Canada with 58,696, Mexico with 50,366 and Argentina with 4,860 in average. The one-way ANOVA does not show a significant difference among the results of the projected infected cases by SARS-CoV-2, using nonlinear regression, SIR, and SEIR epidemic methods. The above could mean that initially any method can be used to model the pandemic course.

scholarly journals Substantive-methodological concept of the formation of a special course on Markov processes applications

2020 ◽  
Vol 6 (1) ◽  
pp. 31-41
Author(s):  
Irina Suhorukova ◽  
Natal'ya Chistyakova
Keyword(s):  
Markov Processes ◽  
Mathematical Methods ◽  
Economic Applications ◽  
Wide Range ◽  
Analytical Work ◽  
Scientific Worldview ◽  
And Control ◽  
Independent Work ◽  
Goals And Objectives ◽  
Modern Work

The concept of the formation of a special course on economic applications of Markov processes for students of economic universities is proposed. Methodical recommendations are given for teaching such a discipline, introducing students to the applied aspects of the mathematical theory of Markov processes. On the basis of many years of generalized experience in teaching the discipline in REU, the structure of the course construction, its relationship with other disciplines is described. The goals and objectives of the discipline are formulated. A detailed description of the topics under consideration is given and concrete examples of characteristic problems having both a theoretical and a computational focus are proposed. An algorithm for the implementation and control of students' independent work is proposed. Samples of individual analytical work are shown. Criteria for assessing the knowledge of students are formulated, a list of theoretical questions of the final certification is given. The practical orientation of illustrative examples even with serious theoretical foundations allows students to be interested in a wide range of areas of study. The developed approach allows expanding the professional and general cultural competencies of students aimed at the application of mathematical methods of analysis in economic applications, and also forms a scientific worldview and helps establish causal relationships in applied research. The practice of teaching a discipline in REU in the form of an elective discipline has shown its relevance by students and has consistently demonstrated interest in the tasks of this direction. Computer support for training significantly complements the methods of independent work of students, diversifies it, develops the skills of modern work with data, saves time and makes you interested in quickly getting results.

scholarly journals Математическое обоснование спутниковой геодезической съемки

2021 ◽  
Vol 70 (2) ◽  
pp. 60-64
Author(s):  
Н.А. Гамова ◽  
А.В. Безводицкий ◽  
К.Д. Каляда
Keyword(s):  
Satellite Imagery ◽  
Mathematical Knowledge ◽  
Science And Technology ◽  
Bachelor's Degree ◽  
Practical Work ◽  
Engineering Science ◽  
Highly Qualified ◽  
Mathematical Methods

In our progressive world in various fields there is a serious demand for highly qualified engineers. Specialists in the technical field are required to more knowledge from different branches of engineering, science and technology. In this article describes one of the ways to measure land plots - satellite imagery, as well as the process of calculating corrections that occur due to the shooting. The purpose of this article is to show, how mathematical knowledge is used in practice, in particular by future students bachelor's degree in geodesy. We will show you how to implement it in practice the construction plan of the area via satellite surveying and using mathematical methods and approaches in solving this problem. In the article we used the results of practical work on geodesy with using mathematical calculations.

Principles of Mathematical Petrophysics

2014 ◽  
Author(s):  
John H. Doveton
Keyword(s):  
Ad Hoc ◽  
Reservoir Characterization ◽  
Rock Properties ◽  
Mathematical Methods ◽  
Fluid Saturation ◽  
Mathematical Algorithms ◽  
Engineering Models ◽  
The Subject ◽  
Log Interpretation ◽  
Pore Types

The pioneering work of Gus Archie moved log interpretation into log analysis with the introduction of the equation that bears his name. Subsequent developments have mixed empiricism, physics, mathematical algorithms, and geological or engineering models as methods applied to petrophysical measurements in boreholes all over the world. Principles of Mathematical Petrophysics reviews the application of mathematics to petrophysics in a format that crystallizes the subject as a subdiscipline appropriate for the workstations of today. The subject matter is of wide interest to both academic and industrial professionals who work with subsurface data applied to energy, hydrology, and environmental issues. This book is the first of its kind, in that it addresses mathematical petrophysics as a distinct discipline. Other books in petrophysics are either extensive descriptions of tool design or interpretation techniques, typically in an ad hoc treatment. It covers mathematical methods that are applied to borehole and core petrophysical measurements to estimate rock properties of fluid saturation, pore types, permeability, mineralogy, facies, and reservoir characterization. These methods are demonstrated by a variety of case studies and summaries of applications. Principles of Mathematical Petrophysics is an invaluable resource for all people working with data related to petrophysics.

APPROACH TO THE FORMATION OF RESULTS OF INFORMATION-COMPUTING TASKS, WHICH SOLVING AT THE COMMAND POSTS OF ARTILLERY UNITS

2019 ◽  
Vol 2 (12) ◽  
pp. 147-153
Author(s):  
I. Pasko ◽  
M. Petrushenko ◽  
S. Nikul ◽  
Y. Sinilo ◽  
O. Budur
Keyword(s):  
Major Elements ◽  
Mathematical Methods ◽  
Initial Information ◽  
Control Units ◽  
Information Models ◽  
Determine Role ◽  
Special Software ◽  
Information Consumers ◽  
Variable Information

A general approach is considered, which allows to use the information models of automated interaction of control bodies to generate correct results of information-computingtasks, which are solved by means of complexes of automation of control units of artillery units. Experience of application of artillery during anti-terror operation and Operation of the incorporated forces allowstoassert, that a managementofartilleryunitscanbeeffectiveonlyattermspracticallyinstantaneous, real-time, reactiononanoperativesituation, thatchangesconstantly. Theachievementofsuchlevelofmanagementispossibleonlybyautomationofhisprocesses (automatedrealizationofcorrespondingcomplexof information-computing tasks) withtheuseofcomplexesoffacilitiesofautomation (CFA). One of basic tasks of CFA there is realization of possibilities of the special software basis of that is made by information-computing tasks (ICT). To ICT hard requirements are pulled out in relation to unification, accordance to the technical equipments, and also openness and adaptivity both to maintenance of tasks for automation of that they are intended and to the time indexes of realization of calculations. Determination of tactical situation (operative directions) of ICT is one of major elements of the stage of forming of requirement specification on development of CFA. Exactly a tactical situation has given determine role and place of ICT in the process of management, connection with other ICT, forms and sources of receipt of permanent and variable information, consumers of initial information, mathematical methods, limitations and suppositions that is accepted in ICT. The operative raising of task (to the complex of tasks) is a basic document that the developer of task must follow at her creation[1].The analysis of information generators testifies in the same time, that not spared the question of forming of the operative raising of ICT the proper attention.

Study of the properties of materials under complicated conditions of low cycle deformation

2021 ◽  
Vol 87 (7) ◽  
pp. 49-58
Author(s):  
N. A. Makhutov ◽  
М. M. Gadenin ◽  
О. F. Cherniavsky ◽  
A. О. Cherniavsky
Keyword(s):  
Initial Data ◽  
Equations Of State ◽  
Complex Loading ◽  
Time Factors ◽  
Point Of View ◽  
Theoretical Point ◽  
Operational Parameters ◽  
Practical Applications ◽  
Wide Range ◽  
Deformation Diagrams

Operational integrity of structures under complex combined modes of a loading depends on a significant number of combinations of operational parameters of thermomechanical impacts in part of loads, temperatures, duration, number of cycles, and deformation rates. The main laws governing the deformation of structural materials under complex loading are determined in conditions of combined standard, unified and special tests in laboratories. Using representative substantiations of physical and mechanical models for deformation diagrams in a wide range of loading conditions, taking into account the different scales of models, the structure of materials and the responsibility of structures, a stepwise consideration of the corresponding types of deformation is proposed: elastic, sign-variable flow, progressing accumulation of strains and their combination. At the same time, calculations of the structures can be carried out in the form of a hierarchical system in which each next level specifies the boundaries of permissible impacts towards expansion of the range of acting loadings, temperatures, rates and modes of deformation, which entails an increase in the bulk of the required initial data and complicates the calculations. The proposed methods of schematization of the physicomechanical properties and types of the equations of state for description of the deformation curves take into account the requirements of compactness of the initial data and the need of using both standard and unified methods for determining the characteristics of cyclic inelastic deformation and special methods as well. To describe the kinetics of deformation diagrams under aforementioned conditions both from the theoretical point of view and from the point of view of practical applications, power equations appeared most suitable; to reflect the role of the temperature factor exponential dependences should be used; whereas power dependences are useful to take into account time factors, strain rate, and conditions of two-frequency loading. The refined calculations at the higher and more complicated steps of the considered hierarchy providing the maximum possible use of the deformation and strength reserves of the materials and structures are to be based on the kinetic laws describing processes of low cycle deformation under complex modes of loading.

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