Statistical Justification of Pearson's Criterion for Testing a Complex Hypothesis on the Uniform Distribution

Облакова, Т. В.

doi:10.24108/0418.0001392

Cited by 4 publications

(1 citation statement)

References 2 publications

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“…The prerequisites of the regression analysis were checked by studying the homogeneity of the variances of reproducibility of experiments at different points of the factor space and the correspondence of the distribution of each output characteristic to a certain distribution law in accordance with the recommendations [21][22][23][24].…”

Section: Resultsmentioning

confidence: 99%

Modeling of the Mechanism of Action of Epilame Film in the Process of Processing

Zvyagina¹,

Selemenev²,

Frolenkova³

et al. 2022

adeletters

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The article discusses the mechanism of action of the epilam film during the operation of epilated drills and the influence of cutting conditions, processing conditions on their condition. Tribological tests were carried out using a special installation, where the test conditions are close to the conditions characteristic of the drilling process. Based on the results of the experiment, it was found that the effectiveness of epilam film directly depends on the cutting speed, which determines the temperature in the contact zone. Research has shown that use of oil-based LCTF MR-7 (МР-7) has the best effect on the state of epilam coating.

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Section: Resultsmentioning

confidence: 99%

Modeling of the Mechanism of Action of Epilame Film in the Process of Processing

Zvyagina¹,

Selemenev²,

Frolenkova³

et al. 2022

adeletters

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Mathematical modeling of failure of port control systems

Khripko

2021

IOP Conf. Ser.: Mater. Sci. Eng.

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The need to increase the capacity of ports is due to the development of the Northern Sea Route as a national transport route of Russia in the Arctic, the National Program for the Development of the Far East, in the context of an increase in trade with other regions of Russia, as well as the reorientation of cargo flows from the Baltic ports to Russian ones in Primorsk, Ust-Luga and Vysotske. Increasing cargo turnover and ensuring the strategic economic interests of Russia requires the reconstruction of existing and construction of new modern port-industrial complexes, provided with advanced technologies, including the automation of logistics management processes, production and engineering systems. This article describes a method for mathematical modeling of the failure of control systems for automation of cargo terminals of ports. Since failures in the operation of automation systems lead to an increase in the load of cargo berths (terminals) of both sea and river port complexes, to a violation of logistics schemes, and as a consequence to an increase in costs. Modeling is carried out using methods of probability theory, in particular, the Poisson distribution law. A comparison of the empirical and theoretical failure rates of automation is performed using the Pearson criterion. The performed modeling will allow determining the technical and economic indicators of new construction, reconstruction or overhaul, in terms of the engineering systems of the facility, and optimize the automation processes.

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Using XML schemas to structure information models of capital construction facilities

Александрович

Владимировна

2020

Vestnik MGSU

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Introduction. Building Information Modeling (BIM) is an auspicious approach that supports management and exchange of semantically rich 3D models across design disciplines. Recently, BIM has gained widespread acceptance in the AEC industry, and it improves the efficiency and quality of the process by facilitating the early exchange of 3D building models. At different stages of the life cycle, a building information model is gradually refined from rough conceptual design to detailed individual components. The task is to develop mechanisms for machine verification (authentication) of data transmitted to/from different systems (for example, from a customer to an expert evaluation authority, from a contractor to the urban planning management information system or any other state information system) in the form of an information model of capital construction facilities or certain components of an information model. Materials and methods. To substantiate the choice of the language employed to describe machine-readable documents, various use cases of XML schemas were analyzed, including the use of the Google Trends tool. Information systems, implemented in the Russian Federation, were also considered. Most of them use the W3C XML Schema language to describe XSD schemas. Results. A consolidated list of XML schemas, necessary and sufficient to maintain stages of the life cycle of a capital construction facility in terms of interaction with the Urban Planning Management Information System is presented. To ensure interaction between the life cycle participants and state information systems, it is necessary to have the list of XML schemas approved at the federal level. The paper presents matrixes of scenarios for the application of XML schemas in the following coordinates: participants, life cycle stages. Conclusions. XML schemas can be supplemented in respect of various stages of a life cycle of a capital construction faci-lity to be verified with due regard for further methodological approaches and changes in regulatory and technical acts; new approaches and the need for this supplementation must be substantiated.

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Statistical Justification of Pearson's Criterion for Testing a Complex Hypothesis on the Uniform Distribution

Cited by 4 publications

References 2 publications

Modeling of the Mechanism of Action of Epilame Film in the Process of Processing

Modeling of the Mechanism of Action of Epilame Film in the Process of Processing

Mathematical modeling of failure of port control systems

Using XML schemas to structure information models of capital construction facilities

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