Algorithm for Determining the State of Impregnated Paper Insulation of High-Voltage Cables

2019 ◽  
Vol 20 (4) ◽  
Author(s):  
Anna Sidorova ◽  
Dmitry Semenov ◽  
Artem Cheremukhin ◽  
Tatyana Astakhova
Keyword(s):  
Real Data ◽  
The Body ◽  
Remaining Life ◽  
Mathematical Methods ◽  
Reverse Voltage ◽  
Extremum Point ◽  
Time Index ◽  
Paper Insulation ◽  
Methodological Guidelines ◽  
Further Development

Abstract The paper presents a technique for determining the time index of growth of the slope of reverse voltage for double insulated cables, based on the body of the theory of series. It is proved that in the vicinity of the extremum point (maximum) the function of the reverse voltage is approximated by polynomials of the nth power. It is proposed to use second-degree polynomials for practical calculations. The method for calculating relevant indicators is illustrated using real data. Analysis of deviations made it possible to conclude that the calculation method proposed in the paper is far more accurate. In the final part of the study, it was concluded that there is a promising outlook for further development of methodological guidelines for determining complex indices of the remaining life of the cable, including but not limited to the use of various mathematical methods.

Small angle reconstruction of plasma luminosity for spherical tokamak

2020 ◽  
Author(s):  
А.Н. Баженов ◽  
П.А. Затылкин
Keyword(s):  
Power Plants ◽  
Essential Feature ◽  
Real Data ◽  
The Body ◽  
Magnetic Sensors ◽  
Test Problems ◽  
General View ◽  
Central Projection ◽  
The Matrix ◽  
Matrix Detector

Публикация посвящена применению методов вычислительной геометрии, интервального анализа и линейного программирования к задачам физики управляемого термоядерного синтеза. Рассмотрены геометрические аспекты проблемы, получены проекции светимостей различных объемов сферического токамака на плоскость матричного детектора, изучены изображения предполагаемых макроскопических структур и микроскопических включений. Для набора модельных распределений светимости объема токамака поставлена задача восстановления сигнала. Решение получено с использованием задач линейного программирования. The problems of reconstruction of plasma luminosity are important for physics and technology of power plants-tokamaks. The Globus-M research tokamak obtained a large amount of data using a matrix detector in pinhole camera geometry. From the mathematical point of view, finding the luminosity for different regions of the plasma volume according to the matrix detector is an inverse problem related to the field of integral geometry. An essential feature of the particular task is the use of a single fixed camera with a small viewing angle. In this regard, application of methods of harmonic analysis of data is not enough. The paper investigates the geometric aspects of the problem. In the general view, a threedimensional object is projected onto a two-dimensional plane through a diaphragm. Under the assumption of azimuthal symmetry, there is a central projection of the luminosity of the body of rotation onto a flat matrix detector. The initial information for the calculation is the plasma boundary obtained from magnetic sensors. There is no reliable information about the internal structure of the plasma, so its division into regions of the equal luminosity is not unambiguous. The paper presents an algorithm for finding the projections of the luminosity of plasma volumes on the plane of the matrix detector. A set of model direct problems for the construction of algorithms for their recognition according to the detector data was investigated. Images of supposed macroscopic structures and microscopic inclusions were obtained. The methodological basis of the work is the use of interval analysis methods for solving geometric and algebraic problems. This approach allows obtaining qualitative and quantitative results that takes into account the uncertainty of the input data with the minimum amount of computational costs. Algebraic solvability is investigated in the interval formulation using response functionality. Solutions for a set of test problems are obtained, which demonstrate the availability of successful reconstruction for real data. An important result of the study is an information about the presence of uncertainties in geometric data and related calculations by obtaining results about the luminosity of the plasma by solving linear programming problems.

scholarly journals Historical development of linguistics’ bibliography in Russia (1860-2013)

Bibliosphere ◽  
2016 ◽  
pp. 3-8
Author(s):  
V. V. Goncharova
Keyword(s):  
Historical Development ◽  
The Body ◽  
Linguistic Resources ◽  
Slavic Linguistics ◽  
History Of ◽  
Rich Information ◽  
Subject Areas ◽  
The Subject ◽  
Language Norms ◽  
Further Development

The interdisciplinary character of the science of language causes great difficulties in bibliographic support in this field. The object of bibliographing in linguistics is not only literature on the language, but also a variety of linguistic resources, which represent a special object to study a branch of linguistics - lexicography. Bibliography of linguistics is the least studied field by specialists among humanitarian bibliographic complexes. The paper first studied the array of domestic bibliographic sources for more than 150 years; the most significant of them are shown. The subject of research is national bibliographic resources in the linguistics field. The objective is to characterize the historical development of the linguistic bibliography in Russia. To achieve this goal we had to solve a number of tasks: identify existing sources for ongoing historical research; to trace the history of forming bibliographic sources, bibliography of bibliographies of linguistics; to form and analyze the body of bibliographic materials; to characterize the problematic areas in the bibliographic software of linguistics. Using the bibliometric analysis it was studied an array of bibliographic products published between 1860 and 2013, the dynamics of bibliographic resources formation was determined, the degree of bibliographic support of some topics and issues in linguistic science and prior directions of their development were revealed. The main results of the study should be considered: 1. The nuclear of fundamental indices on general and applied linguistics is singled out in analyzed literature sources covering the period 1918-1977, as well as in Slavic linguistics for 1825-1981. The complex of current and retrospective bibliographic products was formed and replenished in the country in 1963-1988. 2. The largest share of bibliographic sources in linguistics is presented by book and article bibliography (over 70%), many of which remain bibliographically unrecorded and unused. 3. The following subject areas of linguistics are considered to be bibliographically supported: inter-linguistics, culture of speech and language norms, lexicography, linguistic geography, linguistics regional geography, onomastics. 4. An obvious need to continue the index or database of bibliographic aids in the field of linguistics over the past 50 years is marked. 5. Further development of the linguistics bibliography is impossible to imagine without creating an electronic guide on the bibliographic resources of linguistics, which would reflect the diversity of bibliographical resources and provide their rich information potential for professionals and remote users

Specialized software for analysis of optical density digital images micropreparations

10.12737/7381 ◽  
2014 ◽  
Vol 8 (1) ◽  
pp. 0-0
Author(s):  
Рудалев ◽  
V. Rudalev ◽  
Алексеева ◽  
N. Alekseeva ◽  
Сереженко ◽  
...  
Keyword(s):  
Real Data ◽  
Main Task ◽  
Digital Cameras ◽  
Reaction Products ◽  
Mathematical Methods ◽  
Problem Statement ◽  
Glass Coverslip ◽  
Densitometric Analysis ◽  
Light Quantity ◽  
Methods Of Treatment

The development of software for densitometric analysis is actual nowadays. The main task in performing the densitometric analysis is the estimation of light quantity rate which passed through the product of histochemical reaction of examined object to some sample transparent field without an analyzed object, delaying the light flow, such as slide-glass, coverslip, mounts environment. As a a rule, the information on the color of reaction products is of no interest to the study. That is why monochrome digital cameras are preferred for densitometric analysis. The article presents the issues of creating software for the analysis of digital micrographs of biological objects. The introduction sets out the problem statement and artifacts that result in errors during the densitometric analysis. The problem of constructing software for digital image processing micropreparations obtained using a microscope. The realization of software, mathematical methods of treatment, the results of applying these methods to real data.

scholarly journals ENVELHECIMENTO E FINITUDE – QUAL A REPRESENTAÇÃO DA MORTE?

2011 ◽  
Vol 17 (1) ◽  
Author(s):  
Iraci Gonçalves Guimarães ◽  
Maria Helena Silva Carneiro
Keyword(s):  
The Elderly ◽  
Natural Process ◽  
The Body ◽  
Remaining Life ◽  
Wear And Tear ◽  
Health Quality ◽  
Health Quality Of Life ◽  
Time Required ◽  
Keywords Aging

Se perguntarmos as pessoas a nossa volta o que se opõe a vida, provavelmente a larga maioria responderá que é a morte. Este dualismo, conflituoso, doloroso, cheio de contradição nos impede, por exemplo, de ver a morte como um processo natural, como algo que faz parte da vida. A velhice, por sua vez, é associada, de modo geral, às modificações no corpo pois, com a idade, o organismo sofre um desgaste natural. Os sinais externos e, portanto, mais aparentes são os embranquecimentos dos cabelos, o surgimento de rugas, o andar mais lento, a postura encurvada, a redução das capacidades auditiva e visual. Essas concepções estão ancoradas na visão de que a velhice é sinônima de declínio e morte, e, que, muitas vezes, são incorporadas pelo próprio idoso. A Medicina paliativa, ou cuidados paliativos, tem por objetivo estabelecer princípios para lidar com pacientes que apresentem doenças progressivas, avançadas e com expectativas de vida reduzida, além de idosos com comprometimentos, de forma que estes tenham qualidade de vida. Faz-se necessário quebrar o tabu imposto pelo tema morte, permitindo que esta  tome posse de seu lugar de direito: a de única certeza da vida.Palavras-chave: Envelhecimento. Morte. Saúde. Qualidade de Vida. abstract   If you ask people around us what is that opposes life, probably, the large majority will say that it is death. This dualism, confrontational, painful and contradictory, prevents us, for example, to see death as a natural process, as something that is part of life. Elderly, in its turn, is associated to changes in the body, since, in the course of time, all organisms and materials suffer wear and tear, regardless of the time required for this process to occur. The external signs, and therefore more apparent in humans are diverse, such as discolored hair, wrinkles, reduction in hearing, visual, muscular and, in some cases, cognitive ability. These concepts are anchored in the view that old age is synonymous of decline and death, and which often is incorporated by the elderly. The palliative medicine seeks to establish principles for dealing with patients with advanced progressive diseases, and seniors with impairments in order to maximize the quality of remaining life of the patient. It is necessary to break the taboo topic of death imposed by allowing it to take possession of its rightful place: the only certainty of life.   keywords: Aging. Death. Health. Quality of Life.

scholarly journals USING THE TECHNICAL EXPERIMENT IN THE COMPUTER SIMULATION TRAINING FOR PROSPECTING SOFTWARE ENGINEERS

2020 ◽  
pp. 216-223
Author(s):  
Maryna Litvinova ◽  
Oleg Dudchenko ◽  
Oleksandr Shtanko ◽  
Svitlana Karpova
Keyword(s):  
Computer Simulation ◽  
Comparative Analysis ◽  
Simulation Training ◽  
New Technology ◽  
The Body ◽  
Training Process ◽  
Software Developers ◽  
Software Engineers ◽  
Further Development ◽  
Modern Standard

In present work, a new technology of the prospective software engineers training in computer simulation is described. The technology provides carrying out comparative analysis of opportunities, productivity, and the accuracy of the reproduction of different computer simulation packages (CSP) on the basis of direct performance of the technical experiment results. Training process includes the principal stages: carrying out of the independent technical experiment; its simulation using of various CSP; comparison of the result of the tested CSP to the results of the experiment; models of debugging; detection of advantages and shortcomings of each involved CSP. As an example, in Open Modelica and Mathcad packages analysis of simulation opportunities of a problem of the motion of the body thrown at an angle to the horizon is carried out. As a result, assessment of the efficiency of each CSP used for the solution of an objective is made. When training prospective software developers the offered technology is the basis for further development of the modern standard in the field of computer simulation.

scholarly journals Formation of health culture of student youth

2021 ◽  
pp. 11-14
Author(s):  
Diana Bermudes
Keyword(s):  
Healthy Lifestyle ◽  
The Body ◽  
Health Culture ◽  
Functional Reserves ◽  
Depth Analysis ◽  
Analysis And Synthesis ◽  
Physical Recreation ◽  
Common Opinion ◽  
Further Development ◽  
Active Recreation

In students ' years there is active intellectual, physical development and socialization of the person. It is known that in Ukraine among the students there is a tendency to the growth of various diseases, deterioration of functional reserves of the body, the presence of different defects of the musculoskeletal system, reducing the level of physical preparedness and the like. In the process of analyzing scientific researches and publications, it is determined that different authors pay close attention to the problem of preserving and strengthening the health of modern students, the formation of a culture of health, the creation of health saving educational environment in higher education institutions. The common opinion of researchers is that the need for health should integrate in the cultural need and become a norm of personality life. The main purpose of this work is analysis and synthesis of scientific sources and results of researches of individual authors on the problem of formation of a culture of students ' health. Theoretical comprehension of this problem gave an opportunity to define the essence and content of culture of health as a whole and for students. According to this we believe that physical education is a powerful mechanism of forming a culture of students ' health. In our opinion, an integral part of the formation of students ' health culture is the use of different types and forms of motive activity for active recreation, health and fitness classes and physical recreation in compliance with recommendations on the duration and intensity of motor activity during the week, as well as the requirements to physical condition, a healthy lifestyle. Prospects for further development see in a more in-depth analysis of the formation of health culture of students of different specialties.

scholarly journals Spinal cord regeneration: A brief overview of present scenario and a sneak peek into the future

2021 ◽  
Author(s):  
Ekta Srivastava ◽  
Anamika Singh ◽  
Ashok Kumar
Keyword(s):  
Spinal Cord ◽  
Treatment Approach ◽  
Current Treatment ◽  
The Body ◽  
Spinal Cord Regeneration ◽  
Cord Injury ◽  
Regeneration Capability ◽  
Further Development ◽  
Combinatorial Treatment

Central nervous system (CNS) portrays appreciable complexity in developing from a neural tube to controlling major functions of the body and orchestrated co-ordination in maintaining its homeostasis. Any insult or pathology to such an organized tissue leads to a plethora of events ranging from local hypoxia, ischemia, oxidative stress to reactive gliosis and scarring. Despite unravelling the pathophysiology of spinal cord injury (SCI) and linked cellular and molecular mechanism, the over exhaustive inflammatory response at the site of injury, limited intrinsic regeneration capability of CNS, and the dual role of glial scar halts the expected accomplishment. The review discusses major current treatment approaches for traumatic SCI, addressing their limitation and scope for further development in the field under three main categories- neuroprotection, neuro-regeneration, and neuroplasticity. We further propose that a multi-disciplinary combinatorial treatment approach exploring any two or all three heads simultaneously could alleviate the inhibitory milieu and ameliorate functional recovery.

scholarly journals POINT CLOUD REFINEMENT WITH A TARGET-FREE INTRINSIC CALIBRATION OF A MOBILE MULTI-BEAM LIDAR SYSTEM

2016 ◽  
Vol XLI-B3 ◽  
pp. 359-366
Author(s):  
H. Nouiraa ◽  
J. E. Deschaud ◽  
F. Goulettea
Keyword(s):  
Reference Frame ◽  
Real Data ◽  
Point Clouds ◽  
The Body ◽  
Mobile Mapping ◽  
Extrinsic Calibration ◽  
Body Reference ◽  
3D Information ◽  
Calibration Parameters ◽  
Mapping Systems

LIDAR sensors are widely used in mobile mapping systems. The mobile mapping platforms allow to have fast acquisition in cities for example, which would take much longer with static mapping systems. The LIDAR sensors provide reliable and precise 3D information, which can be used in various applications: mapping of the environment; localization of objects; detection of changes. Also, with the recent developments, multi-beam LIDAR sensors have appeared, and are able to provide a high amount of data with a high level of detail. <br><br> A mono-beam LIDAR sensor mounted on a mobile platform will have an extrinsic calibration to be done, so the data acquired and registered in the sensor reference frame can be represented in the body reference frame, modeling the mobile system. For a multibeam LIDAR sensor, we can separate its calibration into two distinct parts: on one hand, we have an extrinsic calibration, in common with mono-beam LIDAR sensors, which gives the transformation between the sensor cartesian reference frame and the body reference frame. On the other hand, there is an intrinsic calibration, which gives the relations between the beams of the multi-beam sensor. This calibration depends on a model given by the constructor, but the model can be non optimal, which would bring errors and noise into the acquired point clouds. In the litterature, some optimizations of the calibration parameters are proposed, but need a specific routine or environment, which can be constraining and time-consuming. <br><br> In this article, we present an automatic method for improving the intrinsic calibration of a multi-beam LIDAR sensor, the Velodyne HDL-32E. The proposed approach does not need any calibration target, and only uses information from the acquired point clouds, which makes it simple and fast to use. Also, a corrected model for the Velodyne sensor is proposed. <br><br> An energy function which penalizes points far from local planar surfaces is used to optimize the different proposed parameters for the corrected model, and we are able to give a confidence value for the calibration parameters found. Optimization results on both synthetic and real data are presented.

scholarly journals Violence detection explanation via semantic roles embeddings

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Enrico Mensa ◽  
Davide Colla ◽  
Marco Dalmasso ◽  
Marco Giustini ◽  
Carlo Mamo ◽  
...  
Keyword(s):  
Emergency Room ◽  
Language Processing ◽  
Detection System ◽  
Real Data ◽  
Hospital Staff ◽  
The Body ◽  
Hybrid Technique ◽  
Narrative Texts ◽  
Semantic Roles ◽  
Violence Detection

Abstract Background Emergency room reports pose specific challenges to natural language processing techniques. In this setting, violence episodes on women, elderly and children are often under-reported. Categorizing textual descriptions as containing violence-related injuries (V) vs. non-violence-related injuries (NV) is thus a relevant task to the ends of devising alerting mechanisms to track (and prevent) violence episodes. Methods We present ViDeS (so dubbed after Violence Detection System), a system to detect episodes of violence from narrative texts in emergency room reports. It employs a deep neural network for categorizing textual ER reports data, and complements such output by making explicit which elements corroborate the interpretation of the record as reporting about violence-related injuries. To these ends we designed a novel hybrid technique for filling semantic frames that employs distributed representations of terms herein, along with syntactic and semantic information. The system has been validated on real data annotated with two sorts of information: about the presence vs. absence of violence-related injuries, and about some semantic roles that can be interpreted as major cues for violent episodes, such as the agent that committed violence, the victim, the body district involved, etc.. The employed dataset contains over 150K records annotated with class (V,NV) information, and 200 records with finer-grained information on the aforementioned semantic roles. Results We used data coming from an Italian branch of the EU-Injury Database (EU-IDB) project, compiled by hospital staff. Categorization figures approach full precision and recall for negative cases and.97 precision and.94 recall on positive cases. As regards as the recognition of semantic roles, we recorded an accuracy varying from.28 to.90 according to the semantic roles involved. Moreover, the system allowed unveiling annotation errors committed by hospital staff. Conclusions Explaining systems’ results, so to make their output more comprehensible and convincing, is today necessary for AI systems. Our proposal is to combine distributed and symbolic (frame-like) representations as a possible answer to such pressing request for interpretability. Although presently focused on the medical domain, the proposed methodology is general and, in principle, it can be extended to further application areas and categorization tasks.

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