scholarly journals The Mathematical Models of the Operation Process for Critical Production Facilities Using Advanced Technologies

Inventions ◽  
2021 ◽  
Vol 7 (1) ◽  
pp. 8
Author(s):  
Vitaliy A. Yemelyanov ◽  
Anton A. Zhilenkov ◽  
Sergei G. Chernyi ◽  
Anton Zinchenko ◽  
Elena Zinchenko

The paper presents data on the problems of monitoring and diagnosing the technical conditions of critical production facilities, such as torpedo ladle cars, steel ladles. The accidents with critical production facilities, such as torpedo ladle cars, lead to losses and different types of damages in the metallurgical industry. The paper substantiates the need for a mathematical study of the operation process of the noted critical production facilities. A Markovian graph has been built that describes the states of torpedo ladle cars during their operation. A mathematical model is presented that allows determining the optimal frequency of diagnostics of torpedo ladle cars, which, in contrast to the existing approaches, take into account the procedures for preventive diagnostics of torpedo ladle cars, without taking them out of service. Dependence of the utilization coefficient on the period of diagnostics of PM350t torpedo ladle cars was developed. The results (of determining the optimal period of diagnostics for PM350t torpedo ladle cars) are demonstrated. The system for automated monitoring and diagnosing the technical conditions of torpedo ladle cars, without taking them out of service, has been developed and described.

The purpose of this work is to develop a UJSON web technology with C# application to analyze the student data in real-ime. Execute continuous requests on JSON streaming data based on advanced technologies for parallel streaming computing, suitable for solving analytic problems and calculation of metrics in real-time. The developed management information system in this research work designed to filtering event flow, building an event flow as a query result, grouping and aggregation of events, and creating window semantics. For testing the proposed work, several queries were selected that implement aggregation with different types of semantic windows (Steps, Slides). Testing was done locally and on education moodle clusters. It was used 4 types of configurations 2, 4, 8, and 16 computing nodes. Based on the obtained results, scalability is noticeable with an increase in the number of nodes. The updated functions of the proposed UJSON could improve the construction of parallel flow systems and data processing. The developed approach based on modern and advanced parallel flow technologies for output calculations considering the pros and cons of various approaches found in the current era.


Sensors ◽  
2020 ◽  
Vol 20 (11) ◽  
pp. 3242 ◽  
Author(s):  
Seungjun Lee ◽  
Seong Min Roh ◽  
Eunji Lee ◽  
Yejin Park ◽  
Byung Chul Lee ◽  
...  

Since separation of target biomolecules is a crucial step for highly sensitive and selective detection of biomolecules, hence, various technologies have been applied to separate biomolecules, such as deoxyribonucleic acid (DNA), protein, exosome, virus, etc. Among the various technologies, dielectrophoresis (DEP) has the significant advantage that the force can provide two different types of forces, attractive and repulsive DEP force, through simple adjustment in frequency or structure of microfluidic chips. Therefore, in this review, we focused on separation technologies based on DEP force and classified various separation technologies. First, the importance of biomolecules, general separation methods and various forces including DEP, electrophoresis (EP), electrothermal flow (ETF), electroosmosis (EO), magnetophoresis, acoustophoresis (ACP), hydrodynamic, etc., was described. Then, separating technologies applying only a single DEP force and dual force, moreover, applying other forces simultaneously with DEP force were categorized. In addition, advanced technologies applying more than two different kinds of forces, namely complex force, were introduced. Overall, we critically reviewed the state-of-the-art of converged various forces for detection of biomolecules with novelty of DEP.


2009 ◽  
Vol 25 (4) ◽  
pp. 585-593 ◽  
Author(s):  
P. J. Lammers ◽  
M. S. Honeyman ◽  
J. D. Harmon ◽  
J. B. Kliebenstein ◽  
M. J. Helmers

1998 ◽  
Vol 1 (4) ◽  
pp. 285-290
Author(s):  
Abdillahi H. Abib ◽  
Sourin P. Dutta

Several physiological factors, such as wrist, back, and neck injuries, and vision strain contributing to lost workdays in different types of industries using video display terminals (VDTs) were examined using multi-regression model. The developed linear multi-regression model showed that the presence or absence of neck injuries data gives the same result, although the data of neck injuries were highly correlated with dependent variable, workdays lost in comparison with other independent variables. The most important result from this model showed that the combination of back injuries and vision strain data have high correlation coefficient value. The position of worker's back affects his/her vision strain. Findings of this study show that wrist, and back injuries, and vision strain are the main contributors to the workdays lost. Since the numbers of workers using VDT are going up due to advanced technologies, the number of injuries related with VDT will go up dramatically if necessary actions are not taken.


2021 ◽  
Vol 93 ◽  
pp. 107225
Author(s):  
Vitaliy Yemelyanov ◽  
Sergei Chernyi ◽  
Nataliya Yemelyanova ◽  
Vijayakumar Varadarajan

2021 ◽  
Vol 4 (1) ◽  
pp. 177-181
Author(s):  
Marjan Rasoulian-Kasrineh ◽  
◽  
Seyyed-Mohammad Tabatabaei ◽  

Background: Mental disorders are a group of disorders that affect thinking and behavior by causing discomfort or disability to the person. Almost one in eight people aged 5 to 19 deals with these kinds of disorders and his or her growth may be significantly affected. It seems that using novel technologies in such cases are helpful. One of these advanced technologies, which has recently attracted a lot of attention in many fields such as health, is Virtual Reality. Therefore, the present study aimed to provide a brief review about the use of Virtual Reality among children with mental disorders. Methods: In this study, articles in which Virtual Reality were used among children dealing with mental disorders published during 2012 to 2021 were investigated. PsycINFO electronic databases, PubMed Google Scholar, Medline, were searched. Results: Children deal with different types of mental disorders and Virtual Reality has been used for many of them. The most common of them, in which Virtual Reality have been used and caused improvements include Attention Deficit Hyperactivity Disorder, Anxiety Disorder, Conduct Disorder, Autism Spectrum Disorder, Depressive Disorder, Schizophrenia Disorder, and Developmental Disability. Discussion and conclusion: According to the results, Virtual Reality is a very interesting, useful, effective and safe technology for patients dealing with mental disorders especially children and adolescence. It is actually a highly specialized technology which can provide improvement, and in some cases completely new ways of treatment for children suffering from mental disorders.


Author(s):  
Y. J. Zhao ◽  
H. Wu

Abstract. Since the United Nations passed the 17 Sustainable Development Goals (SDGs) and 169 sub-goals in 2015, many researchers have tried their best to put them into practise. However, mass data and different understanding of SDGs indicators make this work much more difficult. In this article we reference the concept of essential variables which may have some contribution to established a standard system for SDGs monitoring. Here we take SDG15 as an example. Firstly, we deeply analyse the main contents of SDG15 and select some geospatial-related indicators involved with forest land. From those forest-related and geospatial-enabled indicators we concise 5 essential forest variables (EFV4SDG15) which could be classified into 3 different types: land cover distribution and transformation, aggregative pattern and intensity and spatial-temporal evolution process. Secondly, formalized expression of EFV4SDG15 and extraction of them from multiple data source are necessary, including data processing and mathematical expression of the variables. Finally, we take global region as research target to carry out preliminary experiments. In this part, we only select 2 EFV4SDG15s: the forest coverage rate and forest land transfer matrix to show detailed operation process and then present the results in forms of figure and table. The paper has preliminary attempts to the application of essential variables in SDGs monitoring and provides an example for other fields.


2008 ◽  
Vol 2008 (1) ◽  
pp. 561-569
Author(s):  
Mark Howard ◽  
Isabelle Morin ◽  
Kristina Watts

ABSTRACT The paper discusses considerations for prevention requirements under the Spill Prevention, Control, and Countermeasure (SPCC) regulation (40 CFR part 112) of onshore oil production facilities. The paper summarizes findings from a recent review of oil spill incidents reported to the National Response Center (NRC) during the period of 2000 through 2005. The analysis covers the relative frequencies and magnitudes of reported oil discharges from onshore oil production facilities by material discharged, source, and cause. The findings are complemented by findings from reviews of spill data obtained for selected states (Arkansas, Colorado, Kansas, and Oklahoma) and by field observations of EPA inspectors. 1 The SPCC rule provides specific requirements for different types of E&P facilities, including: onshore oil production facilities (§112.9), onshore oil drilling and workover facilities (§112.10), and offshore oil drilling, production, or workover facilities (§112.11).


Author(s):  
David A. Sawin ◽  
Aaron M. Stewart ◽  
Jeffrey A. Calcaterra

Pointing sticks and touch pads remain the leading integrated pointing devices incorporated into notebook computers. Manufacturers have implemented dual point designs that include a pointing stick and touch pad on the same system to accommodate polarized preferences for pointing devices among users. Study of dual point designs analyzed the individual devices and identified strengths and weaknesses of combined designs. Findings indicate that with certain system attributes held constant, advanced technologies for pointing stick and touch pad produce near equal performance results and confirm hypotheses from previous research that user device preference and prior learning are key-contributing variables. Different types of pointing stick and touch pad technologies also lead to varying performance and preference results. in addition, users' abilities to transition to an alternate device depend on the device used during prior learning. Data suggests that unless device design is optimized for use of both devices, dual point designs may degrade performance and satisfaction of at least one component device when compared to similar metrics of the same device from single point designs.


2009 ◽  
Author(s):  
Peter J. Lammers ◽  
Mark S. Honeyman ◽  
Jay D. Harmon ◽  
James B. Kliebenstein ◽  
Matthew J. Helmers

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