scholarly journals Monitoring and Controlling Condition of Complex Multiparametric Object

2021 ◽  
Vol 2096 (1) ◽  
pp. 012037
Author(s):  
V Kh Fedorov ◽  
E G Balenko ◽  
S A Ivanov ◽  
E V Vershennik

Abstract Technology is advancing ever faster in all areas of human activity, making the objects around us ever more complicated. Notably, complex objects have multiple parameters that define their condition, whether normal, near-critical, critical, over-critical, etc. If critical infrastructures are in critical condition, their collapse jeopardizes not only the infrastructures, but also their environment. This is why timely maintenance and control of condition is imperative for complex objects. This paper dwells upon a method for monitoring and controlling the condition of a complex multiparametric object; the method uses a minimum number of monitored parameters to retain full data on the condition of a complex object, to optimize the periodicity of taking readings depending on the functional phase of the object, and to determine how object parameters relate to each other and how they affect the quality of its functioning; such minimization reduces computational complexity and the bandwidth requirement. Russian Invention Patents granted to the authors certify the novelty and practical significance of the proposed solution.

2014 ◽  
Vol 543-547 ◽  
pp. 709-712
Author(s):  
Yan Jun Pang ◽  
Cheng Zhao Gu ◽  
Qing Hao Wang ◽  
Yu Jie Pei ◽  
Hui Yan Cao ◽  
...  

With the development of national economy, the progress of science and technology and the height of the production process automation, various nonlinear loads in power grid grow rapidly together with a variety of complex, precise and sensitive power equipment. The above-mentioned two aspects of contradiction is more and more prominent and the requirement of users for power quality is also higher. In such situation, this paper discusses the related theory and its control technology in the field of power quality, analysis the development trend of power quality management and control in our country, which has a strong practical significance. This paper expounds the main problems affecting the quality of electric energy, and analyze in detail the way to improve the quality of electric energy, and then give a preliminary discussion on the development direction of this field.


2021 ◽  
Vol 258 ◽  
pp. 09074
Author(s):  
Kristina Abramkina ◽  
Elena Zhilenkova ◽  
Vladislav Borisenko

The article deals with an important issue of creating virtual test grounds. The problem of measuring vibrations and acoustic emissions of designed objects of the aircraft industry, etc is studied. Thus, for example, one of the important tests of the coaxial helicopter at the development stage is the assessment of the impact of manufacturing tolerances on fuselage vibrations. The general problems of modeling and control of the acoustic field, the measurement of the acoustic emission of objects are considered. The research results can be used to solve the problems of creating virtual test grounds and other digital systems, where the assessment of the behavior of a complex object is made on the basis of its digital twin or, in general, on a mathematical or computer model. The introduction of such systems can significantly reduce financial costs when creating a product, increase quality of designed systems and predict their behavior under certain conditions without expensive testing.


2021 ◽  
Author(s):  
I.I. Greshnikov ◽  
V.I. Zlatomregev

This article discusses the problem of using touch screens in the crew cockpit as part of a general trend optimizing the humanmachine interface of the cockpit in order to improve the safety and quality of flights. The aim of the work is to develop a promising cockpit information and control field of a transport category aircraft based on touch screens and to analyze the feasibility of using this technology on board the aircraft. Based on the analysis of current research and trends, as well as regulatory documentation in the field of building a perspective cockpit using touch screens, a conclusion is made about the feasibility of using touch screens in the cockpit and the concept of a perspective cockpit is developed. As important elements of the concept, such interactive display pages as normal and emergency checklists, a navigation page with a flight plan, and pages of the aircraft navigation system are considered. Given the well-known problem of using touch displays in turbulence, a backup display and reconfiguration control loop is proposed. On the basis of the above-mentioned concept, an intelligent information system is being developed for prototyping a promising cockpit, taking into account the application of the ARINC 661 standard, with subsequent integration into a universal stand for prototyping the cockpit and testing the results with the participation of flight experts. The practical significance of this study is due to the significant optimization of the elements of the cockpit information and control field, as well as the potential increase in the reliability of the complex by replacing the electromechanical display controls, reducing the cost of developing the information and control field and making improvements, reducing weight by decreasing the number of wires and equipment, reducing the complexity of installation.


2020 ◽  
Vol 11 (3) ◽  
pp. 538
Author(s):  
Zhambyl ORYNTAEV ◽  
Zhanna AKSHATAYEVA ◽  
Gulnar AIGARINOVA ◽  
Zhanna KALKANOVA ◽  
Gulnur RASHEVA

Phytosanitary safety is determined by the possibilities of ensuring food safety, which guarantees the sustainable development of the state and improvement of the quality of life. The specifics of ensuring regulation of phytosanitary safety are the principles of equilibrium regulation and the establishment of a holistic perception of safety parameters on the part of both regulatory bodies and regulatory agencies. The novelty of the study is determined by the fact that the formation of safety in the field of phytosanitary surveillance is determined not only by directly controlling the quality of plant raw materials, but also by the food products and materials that are subsequently produced from them. The authors have demonstrated aspects of the implementation of integrated surveillance, analysed the legal systems of various countries that can be sources of supervision and control in the field of phytosanitary safety. The article shows the possibility of expanding the standardisation programs of food raw materials and finished products for phytosanitary facilities. The practical significance of the study is determined by the fact that ensuring phytosanitary safety on a global scale will reduce the need for food supply of individual countries and increase the depth of processing of current food technologies. Ultimately, this will affect the possibility of intensifying social development programs of individual countries and regions.


Author(s):  
Russell L. Steere ◽  
Eric F. Erbe ◽  
J. Michael Moseley

We have designed and built an electronic device which compares the resistance of a defined area of vacuum evaporated material with a variable resistor. When the two resistances are matched, the device automatically disconnects the primary side of the substrate transformer and stops further evaporation.This approach to controlled evaporation in conjunction with the modified guns and evaporation source permits reliably reproducible multiple Pt shadow films from a single Pt wrapped carbon point source. The reproducibility from consecutive C point sources is also reliable. Furthermore, the device we have developed permits us to select a predetermined resistance so that low contrast high-resolution shadows, heavy high contrast shadows, or any grade in between can be selected at will. The reproducibility and quality of results are demonstrated in Figures 1-4 which represent evaporations at various settings of the variable resistor.


Author(s):  
Margaret Jane Radin

Boilerplate—the fine-print terms and conditions that we become subject to when we click “I agree” online, rent an apartment, or enter an employment contract, for example—pervades all aspects of our modern lives. On a daily basis, most of us accept boilerplate provisions without realizing that should a dispute arise about a purchased good or service, the nonnegotiable boilerplate terms can deprive us of our right to jury trial and relieve providers of responsibility for harm. Boilerplate is the first comprehensive treatment of the problems posed by the increasing use of these terms, demonstrating how their use has degraded traditional notions of consent, agreement, and contract, and sacrificed core rights whose loss threatens the democratic order. This book examines attempts to justify the use of boilerplate provisions by claiming either that recipients freely consent to them or that economic efficiency demands them, and it finds these justifications wanting. It argues that our courts, legislatures, and regulatory agencies have fallen short in their evaluation and oversight of the use of boilerplate clauses. To improve legal evaluation of boilerplate, the book offers a new analytical framework, one that takes into account the nature of the rights affected, the quality of the recipient's consent, and the extent of the use of these terms. It goes on to offer possibilities for new methods of boilerplate evaluation and control, and concludes by discussing positive steps that NGOs, legislators, regulators, courts, and scholars could take to bring about better practices.


Author(s):  
V. V. Agafonov ◽  
V. Yu. Zalyadinov ◽  
M. E. Yusupov ◽  
N. S. Bikteeva

Sustainability of mining companies is of of high concern. The problem is specifically acute at companies that are monotownor monosettlement-forming. Sustainability of a mine depends in many ways on product quality and production resource-intensity. This article discusses formation of mineral quality indexes in terms of an open pit chrysotile mine. The studies took into account specific features of operation procedures implemented by each structural division of the mine. The analysis has found managerial and technological inconsistencies which affect quality and marketable product output, as well as efficiency of the mine in whole. The background for efficiency enhancement at a company is, by the authors’ opinion, consolidation of personnel subject to the single development strategy, namely: improvement of production and control efficiency, as well as use of available reserves and resources by means of better setup for production. The proposed approaches to planning mining operations and forming mineral quality allow higher quality of processing stock. In addition, a new model proposed for interaction between structural divisions of a mining company ensures improvement of general production indexes.


2020 ◽  
Vol 9 (2) ◽  
Author(s):  
Vũ Xuân Hùng

In the process of teaching, technical teaching facilities are both a content and a means of conveying information, they help the lecturer organize and control the students' cognitive activities, in addition, they also help students be interested in learning, practice practical skills from which to form active and creative learning methods. Teaching technology is one of the necessary conditions to help teachers carry out their related work of educating, teaching and bringing up, and intellectual development, arouse the inherent intelligence qualities of students. Currently, the management of technical teaching facilities at the Central Kindergartens College has been carried out on a regular basis and achieved certain results, but in fact, there are still many inadequacies. Finding a number of limitations in the management of teaching technical facilities, thereby proposing solutions to overcome those limitations, improve the efficiency of investment, preservation and use of teaching technical facilities in the trend of Industry Revolution 4.0, improving the quality of teaching at Central Kindergarten Pedagogy colleges in the current period is a very important and urgent task.


2019 ◽  
Author(s):  
Michiru Makuuchi

Symbolic behaviours such as language, music, drawing, dance, etc. are unique to humans and are found universally in every culture on earth1. These behaviours operate in different cognitive domains, but they are commonly characterised as linear sequences of symbols2,3. One of the most prominent features of language is hierarchical structure4, which is also found in music5,6 and mathematics7. Current research attempts to address whether hierarchical structure exists in drawing. When we draw complex objects, such as a face, we draw part by part in a hierarchical manner guided by visual semantic knowledge8. More specifically, we predicted how hierarchical structure emerges in drawing as follows. Although the drawing order of the constituent parts composing the target object is different amongst individuals, some parts will be drawn in succession consistently, thereby forming chunks. These chunks of parts would then be further integrated with other chunks into superordinate chunks, while showing differential affinity amongst chunks. The integration of chunks to an even higher chunk level repeats until finally reaching the full object. We analysed the order of drawing strokes of twenty-two complex objects by twenty-five young healthy adult participants with a cluster analysis9 and demonstrated reasonable hierarchical structures. The results suggest that drawing involves a linear production of symbols with a hierarchical structure. From an evolutionary point of view, we argue that ancient engravings and paintings manifest Homo sapiens’ capability for hierarchical symbolic cognition.


2019 ◽  
Author(s):  
Nur Tsalits Fahman Mughni

Teaching materials by integrating local culture makes easier for students to understand the subject matter in the learning process. The aims of the study is to measure the effectiveness of teaching materials based on local wisdom of agriculture in Binjai in improving the students problem solving abilities. The research method was a quasi experimental which use non equivalent control group in the pretest posttest design. The sample of study were students of Senior High School grade X in Binjai that consisted of experiment group which used teaching materials based on local wisdom of agriculture in Binjai and control group that used student handbooks. Teaching materials are tested by material experts and technology experts to ensure the quality of teaching materials. Data collection was conducted through test. The results showed that the teaching materials based on local wisdom of agriculture in Binjai effective in improving students problem solving abilities in the experimental group students based on the results of N gain value was 0.67 which has medium criteria. It means teaching materials based on agricultural local wisdom of agriculture in Binjai can be used as one of the teaching materials in learning activities.


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