Organization and Information Support of Expert Reviews of I&C Systems Modernization at NPP of Ukraine

Author(s):  
Alexander Klevtsov ◽  
Vladislav Inyushev

Safety assessment of Instrumentation and Control systems (I&C systems) of NPP is performed during expert reviews of nuclear and radiation safety in the framework of the licensing process at all life cycle stages of I&C systems. Life cycle stages of NPP I&C systems, which are determined by current guides, rules, and standards of Ukraine, are considered in the chapter. A short overview of the main principles of safety regulation of nuclear facilities, licensing, and expert review of nuclear and radiation safety is presented. Specific safety assessments of NPP I&C systems at different life cycle stages are analyzed (in particular, a list of documents proving NPP I&C safety that should be submitted for expert review at each stage is given). Such assessment is a labor-intensive process that requires processing considerable amounts of a variety of information. Hence, it is reasonable to provide experts with information support for assessing the safety of NPP I&C systems. The chapter gives suggestions and examples of practical implementation of the automated system for support of expert activities and considers the knowledge base for I&C systems.

Author(s):  
Alexander Klevtsov ◽  
Vladislav Inyushev

Safety assessment of Instrumentation and Control systems (I&C systems) of NPP is performed during expert reviews of nuclear and radiation safety in the framework of the licensing process at all life cycle stages of I&C systems. Life cycle stages of NPP I&C systems, which are determined by current guides, rules, and standards of Ukraine, are considered in the chapter. A short overview of the main principles of safety regulation of nuclear facilities, licensing, and expert review of nuclear and radiation safety is presented. Specific safety assessments of NPP I&C systems at different life cycle stages are analyzed (in particular, a list of documents proving NPP I&C safety that should be submitted for expert review at each stage is given). Such assessment is a labor-intensive process that requires processing considerable amounts of a variety of information. Hence, it is reasonable to provide experts with information support for assessing the safety of NPP I&C systems. The chapter gives suggestions and examples of practical implementation of the automated system for support of expert activities and considers the knowledge base for I&C systems.


Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1230 ◽  
Author(s):  
Paul Cătălin Balaure ◽  
Alexandru Mihai Grumezescu

Medical device-associated infections are becoming a leading cause of morbidity and mortality worldwide, prompting researchers to find new, more effective ways to control the bacterial colonisation of surfaces and biofilm development. Bacteria in biofilms exhibit a set of “emergent properties”, meaning those properties that are not predictable from the study of free-living bacterial cells. The social coordinated behaviour in the biofilm lifestyle involves intricate signaling pathways and molecular mechanisms underlying the gain in resistance and tolerance (recalcitrance) towards antimicrobial agents as compared to free-floating bacteria. Nanotechnology provides powerful tools to disrupt the processes responsible for recalcitrance development in all stages of the biofilm life cycle. The present paper is a state-of-the-art review of the surface nanoengineering strategies currently used to design antibiofilm coatings. The review is structurally organised in two parts according to the targeted biofilm life cycle stages and molecular mechanisms intervening in recalcitrance development. Therefore, in the present first part, we begin with a presentation of the current knowledge of the molecular mechanisms responsible for increased recalcitrance that have to be disrupted. Further, we deal with passive surface nanoengineering strategies that aim to prevent bacterial cells from settling onto a biotic or abiotic surface. Both “fouling-resistant” and “fouling release” strategies are addressed as well as their synergic combination in a single unique nanoplatform.


2021 ◽  
Vol 24 (4) ◽  
pp. 146-165
Author(s):  
E. M. Zaitsev ◽  
E. A. Kolomiets ◽  
V. N. Nikolaev

Purpose of research. The purpose of this article is to formalize the processes of creating geographic information products (GIP), within its life cycle (LC), taking into account heterogeneous types of GIS resources of a research - production enterprise (RPE). A typical subsystem of AIS infrastructure of an enterprise is an object of this study. Methods. On the basis of an analysis of scientific sources and standards it was shown that changes in traditional approaches, principles, models are necessary in the creation of GIP. It is also necessary to change infrastructure and resources management of NPP. Presented in tabular form model is describing GIP life cycle taking into account the list of required resources and provisions. Features of LC GIP based on geoinformation technologies processes have been identified. The general approach in formalization of stages describing processes of GIP processing and operation of typical elements of GIS enterprise is described. A model of automated processing process (APP) of GIP is developed on the basis of system representations and theoretical-multiple approach. It is represented by the Cartesian product of vectors. The role and features of information support in the development of GIP are highlighted. Results. The analysis of GIP functioning features, as well as developed structural graphic and tabular presentation, made it possible to identify links between GIP features and stages content of their LCs. The results will allow clearer positioning of GIP elements and components presented for development and operation, especially in GIS NPP. The results will provide an opportunity to define the requirements for systems of this class adequately. Conclusion. The presented LC GIP models, taking into account the identified features of their construction and functioning, will allow, in the future, setting and solving modeling and management system tasks of this class.


2020 ◽  
Vol 44 (6) ◽  
pp. 725-739 ◽  
Author(s):  
Marcin J Szafran ◽  
Dagmara Jakimowicz ◽  
Marie A Elliot

ABSTRACT Chromosomes are dynamic entities, whose organization and structure depend on the concerted activity of DNA-binding proteins and DNA-processing enzymes. In bacteria, chromosome replication, segregation, compaction and transcription are all occurring simultaneously, and to ensure that these processes are appropriately coordinated, all bacteria employ a mix of well-conserved and species-specific proteins. Unusually, Streptomyces bacteria have large, linear chromosomes and life cycle stages that include multigenomic filamentous hyphae and unigenomic spores. Moreover, their prolific secondary metabolism yields a wealth of bioactive natural products. These different life cycle stages are associated with profound changes in nucleoid structure and chromosome compaction, and require distinct repertoires of architectural—and regulatory—proteins. To date, chromosome organization is best understood during Streptomyces sporulation, when chromosome segregation and condensation are most evident, and these processes are coordinated with synchronous rounds of cell division. Advances are, however, now being made in understanding how chromosome organization is achieved in multigenomic hyphal compartments, in defining the functional and regulatory interplay between different architectural elements, and in appreciating the transcriptional control exerted by these ‘structural’ proteins.


Author(s):  
S. P. Kurilin ◽  
◽  
A. M. Sokolov ◽  

The article focuses on the development and formation of a system of indicators for assessing the characteristics of asynchronous electric motors (AEMs) at various life cycle stages. The problem is solved on the basis of the topological approach to the analysis of heterogeneous electromechanical systems. The life cycle of AEM and the tasks of its information support are described. The flows of diagnostic information are analyzed. Indicators for assessing the health of AEDs at various stages of their life cycle are proposed.


2020 ◽  
Vol 11 (1) ◽  
pp. 64
Author(s):  
Sergey Novikov ◽  
Andrey Sazonov

The article is devoted to description of the determination processes for the typical research and development (R&D) intensity normative indicators. In the theoretical part, the authors consider the standards system formation and labor costs norms for R&D. The main composit element (CE) hierarchy of the R&D technology is given. The scheme of the development algorithm for the R&D labor costs standards is drawn. The labor costs norming technique for research works is considered. The procedure for determining the labor costs normative volume for a standardized object is determined. In the research part, the article’s authors examined the automated system components used to determine labor intensity forecast indicators in the product life cycle information support. The process of determining the normative labor costs volume based on eight consecutive stages is presented. The database composition necessary for the product life cycle information support is described. Modules for projects’ planning and monitoring in the automated system framework are considered structurally. The modules’ composition used for the analysis of production systems and forecasting production economic indicators is determined. The regulatory requirements for the production’s modules for technological support and technical regulation are given as part of the automated system work for determining labor intensity forecast indicators in the product life cycle information support. The article concludes with an algorithm for estimating the R&D work clusters’ cost and the aircraft’s distributed systems creation and development.


2021 ◽  
Vol 16 (1) ◽  
pp. 119-124
Author(s):  
Dmitriy Karagodin ◽  
Mariya Cyguleva ◽  
Gamlet Ostaev ◽  
Guzaliya Klychova

Agricultural production is a strategic branch of the national economy, designed to ensure the food independence and security of the country. The leading role in this is given to animal husbandry, since the industry produces vital food products. Improving the tools of accounting and information support for industry management, adapting cost accounting methods to functional features contribute to the sustainable antidepressant functioning of agricultural organizations. With the introduction of advanced cost accounting methods, the significance of classification and the validity of determining the composition of costs in relation to the volume of production increases. Due to the long process of production in animal husbandry, it is advisable to classify the costs of this industry in relation to the volume of production, taking into account their progressive, regressive and abrupt behavior in relation to the functional activity of the subject. This grouping creates the conditions and methodological basis for determining and analyzing margin income, that is, analyzing the relationship between costs, production volume and the result of activity. Information on costs should be accumulated on separate analytical accounts for the periods and stages of biotransformation in conjunction with a system of accounting for variable costs, which provides conditions for calculating the cost of each type of product received, work performed for the periods of the year and physiological phases of animal development, responsibility centers and in general for the industry. The greatest effect of cost accounting and control is achieved in the "input-output-result" model. The formation of a management accounting system within the framework of this approach determines the need to bring all organizational and methodological aspects into line for its practical implementation


Doklady BGUIR ◽  
2021 ◽  
Vol 19 (4) ◽  
pp. 94-102
Author(s):  
S. N. Sytova ◽  
A. P. Dunets ◽  
A. N. Kavalenka ◽  
S. V. Charapitsa

A brief description of information system for nuclear material accounting developed for the national regulator in the field of nuclear and radiation safety - the Department for Nuclear and Radiation Safety of the Ministry of Emergency Situations of the Republic of Belarus (Gosatomnadzor) is given. The information system is a part of the Intellectual information system of a Gosatomnadzor employee to ensure control (supervision) in the field of nuclear and radiation safety. It is developed on the basis of free software. The system has been implemented in Gosatomnadzor and at present in the Republic of Belarus all nuclear material accounting with reporting to the IAEA is carried out with its help. The system, in full compliance with the IAEA requirements, provides automatic generation with all the necessary calculations based on the input data of the following reporting documents: physical inventory listing, inventory change report, material balance report, textual report, General Ledger. All reports are fully consistent each with other. An efficient mechanism has been developed for importing and exporting data from / to the system according to formats of fixed and labelled Code 10 required by the IAEA. All logs of the system describing reports contain a field “IAEA approved” (yes / no). If it set to “yes”, they are closed for editing and correction. A special tool has been developed for making adjustments to these documents in accordance with the IAEA rules. The system contains fully completed reference books (small journals referenced by all major journals in the database) with the necessary reference data in accordance with Code 10. The information system meets all the IAEA requirements for such systems of national regulators in the field of accounting, control and supervision of nuclear material. It can be easily translated into other languages and adapted for the needs of accounting and control of nuclear material in operating organizations.


2016 ◽  
pp. 3-12
Author(s):  
M. Yastrebenetsky ◽  
Yu. Rozen ◽  
I. Shevchenko ◽  
O. Dybach ◽  
O. Hryhorash

Within the concept of improving the regulatory and legal framework of Ukraine on nuclear and radiation safety, the paper justifies the need for separation of proven and generally accepted safety principles formulated in the legal and regulatory documents as obligatory (“regulatory”) requirements and “technical” requirements established in the standards of the operating organizations and/or codes of standard practices, which explain in details regulatory requirements from the documents of higher level. The paper considers the results based on the development of first in Ukraine standards, regulations and rules on functional safety of instrumentation and control systems and their components, where the separation of regulatory and technical requirements is implemented.


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