User-Requirements Analysis on Augmented Reality-based Maintenance in Manufacturing

Maintenance of technical equipment in manufacturing is inevitable for sustained productivity with minimal downtimes. Elimination of unscheduled interruptions as well as real-time monitoring of equipment health can potentially benefit from adopting augmented reality (AR) technology. How best to employ this technology in maintenance demands a fundamental comprehension of user requirements for production planners. Despite augmented reality applications being developed to assist various manufacturing operations, no previous study has examined how these user requirements in maintenance have been fulfilled and the potential opportunities that exist for further development. Reviews on maintenance have been general on all industrial fields rather than focusing on a specific industry. In this regard, a systematic literature review was performed on previous studies on augmented reality applications in the maintenance of manufacturing entities from 2017 to 2021. Specifically, the review examines how user requirements have been addressed by these studies and identifies gaps for future research. The user requirements are drawn from the challenges encountered during AR-based maintenance in manufacturing following a similar approach to usability engineering methodologies. The needs are identified as ergonomics, communication, situational awareness, intelligence sources, feedback, safety, motivation, and performance assessment. Contributing factors to those needs are cross-tabulated with the requirements and their results presented as trends, prior to drawing insights and providing possible future suggestions for the made observations.

Update of the technical equipment of the grain-harvesting complex

Many options have been developed for the implementation of the algorithm for updating the fleet of grain harvesters to date. In accordance with the yield and other indicators, recommendations for the formation and renewal of the harvester fleet are proposed discretely in the form of tables or charts. This form of information does not always meet the requirements of operational correction and does not allow assessing the technological capabilities of the harvesting units, depending on the harvesting conditions. The method to improve the formation of the initial information for operational decision-making on the effective upgrading of technical means of grain harvesting complex taking into account the zonal features of a particular agricultural enterprise is proposed. A graph-analytical method for determining the main parameters of the basic harvesting tools depending on the predicted yield level is developed and the influence of the factors determining the composition of the grain harvesting fleet is assessed. This method makes it possible to identify the most rational basic parameters of alternative basic harvesting tools for a specific agricultural enterprise. The first step is to determine the basic parameters of the basic equipment, then select the appropriate size series of self-propelled threshers for combine harvesters and reapers. Further, alternative versions of various models of grain harvesting units and complexes are formed. For the subsequent selection of rational types of cleaning agents and their criterion assessment, technical and technological, environmental and other indicators are used. The expert-logical analysis of information resources makes it possible to identify and assess the factors that determine the quantitative composition of the technical means of the grain harvesting complex. The final stage in the formation of the initial information for making a decision on updating the technical means of the grain harvesting complex should be their economic assessment, which makes it possible to predict the competitiveness of the threshed grain.

Preface

(word. doc) should be separate from the PDFs and include information about their virtual format if this is relevant. This information should include: • The reason(s) why the meeting will take/took place virtually (covid- 19/travel restrictions, etc). • The Forum was held both online and offline. All participants who took part offline provided vaccination certificates. The online forum was held for participants who did not have the opportunity to participate in the forum directly or to submit a report in person. Including, in order to be able for the majority of participants to participate in the Forum in a format convenient for them. • Location where the organisers will be/were. • The Forum was held on the premises of the Institute of Nuclear Physics in Almaty, Kazakhstan • The Model, for example, the plenary, the contributions, the time spent to deliver the talks by each speaker. • • The version of the poster or oral presentation was adopted as a model of reports, both online and offline. Plenary lectures were conducted both online and offline, through the presentation and oral presentation of the speaker. In each section, the time for a report was different, on average it ranged from 20 to 30 minutes. • The discussions, the feasibility, room for Q&A? • All questions and discussions were held in conference halls of 5 sections. Including online. Everyone could ask a question and get an answer, upon completion of the report, 10-15 minutes were allotted for this procedure. • The participants: location and the overall attendance number expected. • The participants took part in the forum on the territory of the Institute of Nuclear Physics. Within 5 days, more than 90% of the participants took part offline. There were more than 90 offline participants in total. In general, about 300 applications were accepted for participation in the forum. • The technology needed to deliver the meeting successfully. • The Forum was provided with the most modern technical equipment. Each section contained several projectors, computers and microphone sets for the participants. To ensure high parallelization of communication, high-speed Internet access was used for each 4G section. • Mention any technical difficulties. • • Technical difficulties during the forum were minor and were resolved as they arose. All forum participants appreciated the high level of technical equipment of the forum. • Mention any drawbacks in the delivery of the conference virtually, e.g. impact on the community. • No shortcomings were identified during the forum. The forum had an extremely positive impact on the public, which was mentioned in his speech for the journalists of the national channel, the chairman of the forum and the general director of the INP Batyrzhan Karakozov. Please make sure that the following information is included in the preface: l. The full list of committees names and affiliations which shall be published as part of the preface. Editors of proceedings, ORGANISING COMMITTEE, INTERNATIONAL ADVISORY BOARD, and ORGANIZED BY are available in the pdf.

Evaluation of equipment used in Ex atmospheres - interdisciplinary field

The risk of explosion becomes significant when, in the industrial field, flammable substances such as gases, vapours, mists, dusts, lint and fibres may be present. If they are present in sufficient quantity, the risk of explosion is imminent. On the other hand, the measure of shutting down the technical equipment, in the context of the presence of explosive atmospheres, is not an acceptable measure in all situations. As examples are the parts of installations that have safety functions: ventilation installations, installations for monitoring the concentration of flammable substances and other safety parameters. Explosion protection of technical equipment shall be evaluated and tested in order to validate it. The testing process of the technical equipment for the purpose of explosion protection certification is situated at the confluence of several engineering fields: mechanical, electrical, chemical, etc. The first part of the paper deals with the risk of explosion and presents the explosion protection of the technical equipment. The systematized presentation of the technical equipment tests is performed in the second part of the paper. Among the conclusions it is mentioned that although the field of tests in explosion atmospheres is an interdisciplinary one, its coherence is ensured by the specific standards.

Aspects regarding the explosion risk assessment of installations in atmospheres with combustible dust

Many industrial processes involving the presence of dust and combustible dust, suspended or accumulated in the form of deposits, have the potential to lead to a fire, explosion or decomposition in the presence of oxygen. As the damage caused by an explosion of dust is generally greater than that caused by explosions of flammable gases and vapours, a special attention must be paid to measures and means of protection and prevention of explosions of dust. A dust explosion can only occur if there is mainly a potentially explosive atmosphere generated by the air / dust mixture and a source of ignition. The level of safety is given by the operational efficiency of the employees and technical equipment involved in the production process to ensure that at least one of the above conditions is eliminated. The probability of a dust explosion is related to the physicochemical properties of the processed materials, together with the nature of the operations performed and the equipment used. This paper highlights the principles and factors that must be taken into account when conducting an explosion risk assessment in installations with combustible dust atmospheres in order to establish prevention and protection measures, with the aim of ensuring a tolerable level of risk.

On the estimation of maximum surface temperature for cells

In paperwork is presented the estimation of the maximum surface temperature of cells exposed to specific tests for the intrinsic safety type of protection. Particularly, it presents the thermal resistance of the short-circuit test-stand results. The first part introduces the aspects regarding the risk of explosion. The risk of explosion occurs due to the presence of technical equipment in areas where flammable substances may occur. The second part itemizes the requirements for the testing of cells. Also, is introduced the stand configuration and performance aspects. The third part of the paper has been dedicated to the presentation and the discussion of the obtained results. The analysis of the test results highlighted the range of thermal resistance. This result could help estimation of the surface temperature of cells based on their capacity and internal resistance. The convection coefficients were determined. The process of deep discharge destroys the inner electrochemical of the cell system. Therefore, it permits energy recovery lower than a fraction of a tenth.

Electronic information and educational environment of the University: sociological analysis (as exemplified by Samara National Research University)

The article discusses the concept of electronic information and educational environment of the university and its structure. The features of its implementation are analyzed on the example of Samara National Research University named after academician S.P. Korolev. The article presents the results of a sociological study, the purpose of which has been to point out the specifics of the use of the universitys IEE under conditions of the COVID-19 pandemic, as well as to carry out the research regarding the students opinion about the educational features of distance learning process. The following components of EIEE are most often used during distance learning: personal educational account, e-learning system based on Moodle (do.ssau.ru) and the university portal (ssau.ru). The majority of respondents believe that online educational platforms have limited opportunities for interactive interaction between students and teachers. Students suggest to pay attention primarily to the technical equipment of the educational process and the development of free online educational platforms. That is their proposal regarding the optimization of the online learning process.

FORMATION OF QUALITY CRITERIA OF ADVERTISING VIDEO USING THE METHOD OF ANALYSIS OF THE SAATI HIERARCHY

The article contains substantiated criteria for the quality of an advertising video using the Saaty hierarchy analysis method. Thanks to the proposed recommendations, the enterprise can prioritize the video content development process and focus more on the significant criteria that affect the final result. The equivalence of the influence on the quality of the video of such criteria as the level of personnel qualifications, the quality of the script, the price and speed of creation, technical equipment has been proved. Other criteria are less important, but have their own contribution.

Audiovisual Teleconsultation For Patients With Epilepsy In Primary Care In Rural Germany: A Pilot Study On Feasibility And Acceptance

Background: In rural areas, epilepsy patients have limited access to specialised care. They usually have to put up with travel and waiting times of several hours. In addition, often the communication between general practitioners (GP) and specialized epileptologists about diagnosis and treatment is complicated by the high workload on both sides and the different prioritization of treatment goals. Therefore, the aim of this study was to investigate the feasibility of an interprofessional audio-visual patient-doctor teleconsultation and its acceptance in clinical practice in patients with epilepsy in a rural region in Germany.Method: Ten patients participated in telemedicine consultations in their GP practice. The practice was located in a sparsely populated region of Mecklenburg- Western Pomerania and equipped with technical equipment specifically procured for project-related purposes. An explorative qualitative interview was conducted with all participants. We based this paper on the consolidated criteria for reporting qualitative research (COREQ). Results: Despite initial uncertainties on the part of the patients regarding the consultation setting, all participants found the teleconsultation helpful. Some patients were initially intimidated and felt slightly overwhelmed by the attention provided and the technology used (multiple HD cameras, large high-resolution screens). However, during the consultation they felt supported by their GP and were satisfied that their needs were addressed in a satisfactory and timely manner. The hardware used was not felt to be a nuisance or to interfere with the conversation between doctor and patient. Patients also appreciated the time saved and the organisational convenience compared to a visit to a university outpatient clinic. Most consultations led to therapeutic consequences. Some patients seemed to benefit particularly, e.g. those who needed a change in their medication. Conclusion: This pilot study provides first evidence that teleconsultations between patients, specialists and GPs are possible in rural areas. Interprofessional collaboration between GPs and epileptologists can improve the care of patients with epilepsy. Further research should investigate the effectiveness and efficiency of interprofessional telemedicine consultations for epilepsy and other conditions.

FEATURES OF CALCULATION OF THE REQUIRED QUANTITY OF GRAIN TERMINAL TRACKS IN SEA PORTS IN MODERN CONDITIONS

Purpose. Ukraine is one of the world's five largest producers of grain crops. Much of the grain is exported. Traditionally, grain cargoes are exported through the western land crossings and seaports of the Black and Azov Seas, with the bulk of grain exports going through the port of Nikolaev and the ports of Greater Odessa. Rail transport provides delivery to exporting ports up to 2/3 of the total volume of grain transshipment in ports. Given the significant number of operations in the general technological process of processing grain wagons in ports, the required capacity of technical equipment of railway transport (number of tracks, locomotives, weighing devices, etc.) plays a significant role in the duration of the transshipment process and total operating costs. In this regard, determining the required number of ways to service the flow of grain for export is an urgent task. Methods. Comprehensive analysis of technical equipment and technology of railway transport of grain terminals in seaports, statistical analysis, graph-analytical modeling. Results. Based on the processing of statistics on the delay of wagons due to commercial marriages with grain cargo in the seaport, the conditional division of detained wagons due to and, consequently, the duration of delay of wagons into long and short. The characteristics of random values of the delay of the car are established and the dependence of the number of detained cars on the value of the total car traffic with grain cargo entering the transshipment is obtained. For short-term delays it is a polynomial dependence of the second degree, for long-term delays it is characterized by exponential dependence. Based on research, an additional track capacity has been established for the sedimentation of detained cars and recommendations have been developed for the number of such tracks and their length. Based on the rationing of the duration of shunting operations with delayed wagons, an additional working fleet of shunting locomotives for servicing delayed wagons was determined and recommendations for the location of wagon scales for commercial weighing of wagons in the process of processing grain wagons in the port. Practical significance. The obtained results can be used to determine the number of tracks and the total capacity of grain terminals in seaports. The duration of additional shunting operations to service the detained cars allows to clarify the calculation of the required locomotive fleet of grain terminals.