Virtual Components Research Articles

Efficient Experimental and Data-Centered Workflow for Microstructure-Based Fatigue Data

BackgroundEarly fatigue mechanisms for various materials are yet to be unveiled for the (very) high-cycle fatigue (VHCF) regime. This can be ascribed to a lack of available data capturing initial fatigue damage evolution, which continues to adversely affect data scientists and computational modeling experts attempting to derive microstructural dependencies from small sample size data and incomplete feature representations.ObjectiveThe aim of this work is to address this lack and to drive the digital transformation of materials such that future virtual component design can be rendered more reliable and more efficient. Achieving this relies on fatigue models that comprehensively capture all relevant dependencies.MethodsTo this end, this work proposes a combined experimental and data post-processing workflow to establish multimodal fatigue crack initiation and propagation data sets efficiently. It evolves around fatigue testing of mesoscale specimens to increase damage detection sensitivity, data fusion through multimodal registration to address data heterogeneity, and image-based data-driven damage localization.ResultsA workflow with a high degree of automation is established, that links large distortion-corrected microstructure data with damage localization and evolution kinetics. The workflow enables cycling up to the VHCF regime in comparatively short time spans, while maintaining unprecedented time resolution of damage evolution. Resulting data sets capture the interaction of damage with microstructural features and hold the potential to unravel a mechanistic understanding.ConclusionsThe proposed workflow lays the foundation for future data mining and data-driven modeling of microstructural fatigue by providing statistically meaningful data sets extendable to a wide range of materials.

B-AB05-03 A SAME DAY DISCHARGE STRATEGY AFTER ATRIAL FIBRILLATION ABLATION THAT IS OVERSEEN BY ALLIED HEALTH PROFESSIONALS CAN BE INITIATED SAFELY AND EFFECTIVELY

Same day discharge (SDD) after an AF ablation can have many benefits, including reduced resource utilization and improved patient (pt) satisfaction. Allied health professionals (AHPs) can play an important role in SDD. To develop a strategy of SDD after an AF ablation that is overseen by AHPs. All pts undergoing first case AF ablation were considered for SDD at the discretion of the operator. Post ablation management of the pt was overseen by the cardiac arrhythmia AHP who made the discharge decision. All SDD pts received a BP and rhythm monitor for home use. A virtual visit was performed the following day to discuss the objective findings. Between Dec 2020-Feb 2021, 67 pts underwent first case AF ablation, and 20/67 (29%) were identified prior to the procedure as an intended same day discharge (IDC). Characteristics of IDC vs. non-IDC included Age 60.1 vs. 64.2yrs, BMI 28.0 vs. 29, EF 56.9 vs 54%, Mean CHADs2-VASc 2.1 vs. 2.3 (p=ns for all comparisons). SDD was successful in 12/20 (60% of IDC). There were no significant differences in the successful vs. failed SDD groups (Age 58.7 vs. 64.0, BMI 27.7 vs. 28.5, EF 56.1 vs. 57.9, CHADS2-VASc 1.6 vs 2.75, p=ns). Reasons for failure of SDD were all minor and included medication reactions, minor groin bleeding and inability to void. The SDD group had no serious adverse events and no hospital re-admissions within 30 days. An AF ablation SDD strategy overseen by AHPs can be safely and effectively initiated. A virtual visit component to SDD planning may have played a role in reducing readmissions. Further analysis of the benefits of this strategy including resource utilization and cost savings is warranted.

The Issue of State Sovereignty in Cyberspace

The author examines a special approach to establishing the sovereignty of the state in relation to cyberspace, the extraterritorial characteristics of which determine the question of the implementation of the territorial supremacy of the state. The author concludes that the understanding of the state’s sovereignty in relation to cyberspace lies not in detailing a set of measures in the form of sovereign powers undertaken in this area, but in constructing the boundaries of cyberspace both in relation to the technical component of the network infrastructure that supports the smooth functioning of the Network, and in in relation to the virtual component of cyberspace. To achieve the goal of the study, the author proposed to combine social, technological and subjective approaches, understanding by cyberspace an artificial telecommunication environment for the implementation of public relations controlled by a wide range of subjects (states, intergovernmental organizations, non-governmental organizations, individuals, etc.), the functioning and maintenance of which is carried out by means of software-technical infrastructure in the form of its physical part (telecommunication networks, computers, servers, routers, processors, satellites, etc.) and a virtual part (operating systems, data transmission standards, hardware applications, software, etc.).

Digital twin: a state-of-the-art review of its enabling technologies, applications and challenges

Digital twin (DT) is an emerging technology that enables sophisticated interaction between physical objects and their virtual replicas. Although DT has recently gained significant attraction in both industry and academia, there is no systematic understanding of DT from its development history to its different concepts and applications in disparate disciplines. The majority of DT literature focuses on the conceptual development of DT frameworks for a specific implementation area. Hence, this paper provides a state-of-the-art review of DT history, different definitions and models, and six types of key enabling technologies. The review also provides a comprehensive survey of DT applications from two perspectives: (1) applications in four product-lifecycle phases, i.e. product design, manufacturing, operation and maintenance, and recycling and (2) applications in four categorized engineering fields, including aerospace engineering, tunneling and underground engineering, wind engineering and Internet of things (IoT) applications. DT frameworks, characteristic components, key technologies and specific applications are extracted for each DT category in this paper. A comprehensive survey of the DT references reveals the following findings: (1) The majority of existing DT models only involve one-way data transfer from physical entities to virtual models and (2) There is a lack of consideration of the environmental coupling, which results in the inaccurate representation of the virtual components in existing DT models. Thus, this paper highlights the role of environmental factor in DT enabling technologies and in categorized engineering applications. In addition, the review discusses the key challenges and provides future work for constructing DTs of complex engineering systems.

Perspectives on virtual interviews—A follow-up study of the Comprehensive Endocrine Surgery Fellowship interview process

BackgroundThe American Association of Endocrine Surgeons Comprehensive Endocrine Surgery Fellowship interview stakeholders previously favored in-person interviews, despite time and expense. This study assessed perception changes given mandated virtual interviews because of coronavirus disease 2019. MethodsImmediately after the 2020 Match, anonymous surveys were distributed to applicants (n = 37) and program directors (n = 22). Mixed-methods analyses were used to evaluate responses. Results were compared to data from a prior study of the 2013 to 2018 in-person interview process. ResultsResponse rates were 82% (program directors) and 60% (applicants). Compared with prior applicants, 2020 applicants attended similar numbers of interviews (1–10, 32% vs 37%; P = .61), used fewer vacation days (23% vs 56%; P = .01), and most reported 0 expenses. Burdens included lack of protected time for interviews. The virtual format did not compromise applicant ability to meet faculty (mean rank = 6.8/10) or make favorable impressions (mean rank = 6.8/10). Program directors reported equivalent or improved assessments of applicants. Program directors (72%) and applicants (77%) indicated that future interviews should be partially or completely virtual. ConclusionIn contrast to prior survey data, applicants and program directors now express interest in virtual or hybrid interview processes. Virtual interviews were less costly, less time-consuming, and met goals effectively. Integrating virtual interview components will require innovative strategies to reduce redundancies and promote equitable access.

Abstract 18: Cancer Control Assessments in Low- and Middle-Income Countries during COVID-19: The IAEA-IARC-WHO imPACT Review Hybrid Modality

Abstract Purpose: Under the auspices of the WHO-IAEA Joint Programme on Cancer Control, the International Atomic Energy Agency's (IAEA) Programme of Action for Cancer Therapy (PACT) supports Member States through assessments of national cancer control capacities and needs (imPACT Reviews) related to the cancer continuum. imPACT Reviews are conducted jointly with the World Health Organization (WHO), the International Agency for Research on Cancer (IARC), and other partners as appropriate. To ensure continuity of imPACT Reviews to Member States during the COVID-19 pandemic, in particular to low- and middle- income countries, a hybrid modality with a virtual component has been adopted. Methods: With the hybrid modality, imPACT Reviews are conducted partially virtually through online meetings with stakeholders/international experts (using photos, videos and live walk-throughs of health facilities), and through in-country visits when travel restrictions are lifted to validate findings and engage with national authorities. Results: The case studies of Senegal and Mali initiated in mid-2020 demonstrate the effectiveness of the hybrid modality. Review findings and recommendations have been consolidated into preliminary reports submitted to the respective Ministries of Health in December 2020 and considering the impact of COVID-19 on cancer-related health services. The Reviews featured a cervical and paediatric cancer focus in line with WHO global initiatives and national priorities. Immediate next steps for the countries are the development of costed national cancer control plans and support in mobilizing resources. Conclusion: The coordinated efforts of IAEA, IARC and WHO ensured continuity of evidence-based cancer control assessments and the virtual component may be considered for future imPACT Reviews. Benefits include involving a higher number of institutions and experts, minimizing disruption to their work, visiting more health facilities, and ensuring sustained dialogue over a longer period of time. This contributes to a stronger collaborative network while enhancing government engagement and national ownership. Citation Format: Marianna Nobile, Kendall Siewert, Maria Tena Perpina, Yuliya Lyamzina. Cancer Control Assessments in Low- and Middle-Income Countries during COVID-19: The IAEA-IARC-WHO imPACT Review Hybrid Modality [abstract]. In: Proceedings of the 9th Annual Symposium on Global Cancer Research; Global Cancer Research and Control: Looking Back and Charting a Path Forward; 2021 Mar 10-11. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2021;30(7 Suppl):Abstract nr 18.

Extended-Reality Technologies: An Overview of Emerging Applications in Medical Education and Clinical Care.

Extended-Reality Technologies: An Overview of Emerging Applications in Medical Education and Clinical Care.

Comparing the Performance of Regional Earthquake Early Warning Algorithms in Europe

Several earthquake early warning (EEW) algorithms have been developed worldwide for rapidly estimating real-time information (i.e., location, magnitude, ground shaking, and/or potential consequences) about ongoing seismic events. This study quantitatively compares the operational performance of two popular regional EEW algorithms for European conditions of seismicity and network configurations. We specifically test PRobabilistic and Evolutionary early warning SysTem (PRESTo) and the implementation of the Virtual Seismologist magnitude component within SeisComP, VS(SC), which we use jointly with the SeisComPscanlocmodule for locating events. We first evaluate the timeliness and accuracy of the location and magnitude estimates computed by both algorithms in real-time simulation mode, accounting for the continuous streaming of data and effective processing times. Then, we focus on the alert-triggering (decision-making) phase of EEW and investigate both algorithms’ ability to yield accurate ground-motion predictions at the various temporal instances that provide a range of warning times at target sites. We find that the two algorithms show comparable performances in terms of source parameters. In addition, PRESTo produces better rapid estimates of ground motion (i.e., those that facilitate the largest lead times); therefore, we conclude that PRESTo may have a greater risk-mitigation potential than VS(SC) in general. However, VS(SC) is the optimal choice of EEW algorithm if shorter warning times are permissible. The findings of this study can be used to inform current and future implementations of EEW systems in Europe.

Virtual Production: a New Approach to Filmmaking

The purpose of the research is to investigate the components of virtual production, identify the structure, basic tools of virtual technologies and their benefits, to define differences between virtual processes and traditional filmmaking. The research methodology is based on general scientific methods of complex analysis of the processes that take place in virtual production, and analysis of basic virtual tools, computer programs; use a comparative method for virtual production and traditional film production technology; generalization of the work of virtual technologies, determination of their advantages and disadvantages, research of their influence on modern cinematography. The scientific novelty of the obtained results lies in the systematic analysis of modern virtual technologies components and tools, determined the features of virtual production and its impact on the film industry, proven the relevance and rationality of the use of virtual technologies, both today and in the future. Conclusions. In the course of the research, numerous advantages and new opportunities offered by virtual production were revealed. The essence of virtual processes in film production is analyzed, it is shown how modern computer tools can be creatively applied at each stage of film production. Virtual production is the next logical step in the constant evolution of the film industry, which is changing the film industry today.

Design and preliminary realization of component installation scheme generation system in virtual EAST

In the experimental advanced superconducting tokamak (EAST) experiment, the properties, states of plasma and the engineering parameters of the EAST device are measured and analyzed by various diagnostic methods. The approaches of diagnosis and measurement are constantly updated, and the diagnostic systems should be updated accordingly. However, position conflicts would inevitably occur due to the traditional diagnostic marker from diagnosis personnel according to the installation location of the part drawing, leading to modification after the rediscussion with other diagnosis personnel. In addition, the confined environments of EAST result in inconvenient installation. Therefore, the technology of scheme generation of an immersive component installation should be urgently pursued. Aimed at the actual requirements of physical experiments, the digital technology of component installation and design process based on multiuser and multidetail level, as well as the technology of virtual installation and cooperative discussion based on hierarchical collision detection are proposed. Taking the electromagnetic measurement diagnosis system as an example, the scheme generation system of immersive virtual EAST component installation is established to provide a reference for researchers to access the actual installation process, reduce the conflict of component positions, and improve the installation efficiency of the components. Preliminary realization and design of component installation scheme generation system are described.

A dynamic and scalable parallel Network Intrusion Detection System using intelligent rule ordering and Network Function Virtualization

A Network Intrusion Detection System (NIDS) is a fundamental security tool. However, under heavy network traffic, a NIDS might become a bottleneck. In an overloaded state, incoming and outgoing packets in the network might suffer from long delays since previous packets are still being inspected, and eventually the NIDS starts to drop packets when it runs out of hardware resources. Although many solutions have been suggested in the literature to counter this problem, they are not completely reliable as each of them has limitations. This paper investigates the design of a lightweight elastic architecture which allows parallel processing in an existing NIDS while maintaining the filtering integrity. Furthermore, we propose two adaptive algorithms which dynamically adjust and divide the signature rules evenly across NIDS nodes using a node level parallelism method in order to achieve intelligent rule ordering. We test our approaches in real-life settings by implementing a functioning prototype involving different modern networking technologies. The prototype presented is a Network Function Virtualization (NFV) of an intrusion detection system which utilizes Open vSwitch and Docker containers running Snort in order to provide an elastic system. To the best of our knowledge, there has been no work that orchestrates both scaling and rule splitting and re-ordering of IDS signatures as a part of a holistic elastic IDS solution.The results of this study show that the proposed algorithms are able to equally split the IDS workload and thereby enabling the system to scale by adjusting the number of virtual components which analyse the network traffic. At the same time the experiments indicate that the algorithms can be tuned by a single parameter in order to avoid that some packets go unexamined while simultaneously craving a minimum of the dynamically available computer resources.

A learning interactive genetic algorithm based on edge selection encoding for assembly job shop scheduling problem

This paper presents an effective learning interactive genetic algorithm based on edge selection encoding (LIGA-ESE) for solving the assembly job shop scheduling problem (AJSSP), with the aim of minimizing the maximum completion time (makespan). In the LIGA-ESE, a novel ESE based on virtual components for producing every feasible solution generated with acceptable probability is proposed to improve the convergence efficiency. Based on the proposed competition and learning interactive mechanisms, two genetic algorithm populations from obverse and reverse schedules, respectively, compete to improve the utilization of computation resources and the quality of populations. In addition, the influences of parameters are considered, and a learning parameter combination selection mechanism based on historical optimization performance is proposed for further improving the convergence efficiency of the LIGA-ESE. Finally, a numerical simulation is conducted based on widely used AJSSP instances. Comparisons between the LIGA-ESE and existing algorithms and other LIGA-ESE versions demonstrate its effectiveness and superiority in solving the AJSSP.

From the President: The Return to “Normal” Must Be a Call to Action

2020 is a year that will live in infamy. The global pandemic has disrupted the lives and livelihood of almost everyone on the planet, and worse yet, killed millions. Thanks to science, death rates have dropped, and vaccines have been found that will slow and hopefully end the spread of this horrible disease. Life will return to “normal;” but what will that new “normal” be? I look forward to finally seeing my colleagues in person, in Orlando, at the 240th ECS Meeting this fall, but assume that in this new “normal” there will be a virtual component and some level of “distancing.”

Educational Offerings at ANESTHESIOLOGY® 2021

Article| June 2021 Educational Offerings at ANESTHESIOLOGY® 2021 David L. Hepner, MD, MPH, FASA; David L. Hepner, MD, MPH, FASA Search for other works by this author on: This Site PubMed Google Scholar Santhanam Suresh, MD, MBA, FASA Santhanam Suresh, MD, MBA, FASA Search for other works by this author on: This Site PubMed Google Scholar ASA Monitor June 2021, Vol. 85, 18. https://doi.org/10.1097/01.ASM.0000754212.96265.39 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter LinkedIn Cite Icon Cite Get Permissions Search Site Citation David L. Hepner, Santhanam Suresh; Educational Offerings at ANESTHESIOLOGY® 2021. ASA Monitor 2021; 85:18 doi: https://doi.org/10.1097/01.ASM.0000754212.96265.39 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search nav search search input Search input auto suggest search filter All ContentAll PublicationsASA Monitor Search Advanced Search Topics: knowledge acquisition The ASA ANESTHESIOLOGY annual meeting is the world's largest anesthesia-educational event focused on the science and practice of anesthesiology. This year will be no different. It will offer an opportunity for face-to-face conversations and collaborations that have always been critical for the growth of our specialty. This year's meeting is designed to offer both a live, in-person component and a smaller virtual component to suit participants' schedules and preferences. The in-person attendee will have access to a wide range of content that you can dive into for deeper and targeted learning in your subspecialty or in areas you wish to learn more. We have put together one of the most exciting meetings ever! New this year – the Full Annual Meeting Experience includes everything offered live, on site in San Diego plus the virtual track, which is a curated selection of offerings you can watch whenever, wherever. When you meet... You do not currently have access to this content.

Using Brain Activity Patterns to Differentiate Real and Virtual Attended Targets during Augmented Reality Scenarios

Augmented reality is the fusion of virtual components and our real surroundings. The simultaneous visibility of generated and natural objects often requires users to direct their selective attention to a specific target that is either real or virtual. In this study, we investigated whether this target is real or virtual by using machine learning techniques to classify electroencephalographic (EEG) and eye tracking data collected in augmented reality scenarios. A shallow convolutional neural net classified 3 second EEG data windows from 20 participants in a person-dependent manner with an average accuracy above 70% if the testing data and training data came from different trials. This accuracy could be significantly increased to 77% using a multimodal late fusion approach that included the recorded eye tracking data. Person-independent EEG classification was possible above chance level for 6 out of 20 participants. Thus, the reliability of such a brain–computer interface is high enough for it to be treated as a useful input mechanism for augmented reality applications.

Feasibility of a virtual hybrid resistance and balance training program for older patients with cancer and its preliminary effects on lower body strength and balance.

12002 Background: Falls are a major issue among older patients with cancer and can lead to interruption in cancer treatment. Ample evidence shows resistance and balance training can prevent falls in older adults; however, there is a paucity of evidence regarding exercise on fall prevention in the older cancer population, who often have unique risk factors for falls. Given the new reality of the COVID-19 pandemic, minimizing group gatherings and its associated risks is imperative for older patients, who are a vulnerable population. This study sought to investigate the feasibility of an 8-week, virtual exercise program and its preliminary effects on lower body strength and balance in community-dwelling cancer patients. Methods: Study participants were recruited for this pretest-posttest intervention study using consecutive sampling over a one-year period from the Cross Cancer Institute in Edmonton, Alberta. The intervention entailed leg muscle strengthening and balance training exercises that progressed in difficulty as outlined by the Otago program, and involved a virtual component (facilitated live by a certified exercise physiologist via Zoom meeting platform once a week) and independent at-home training component (twice a week). Lower body strength and balance were assessed using the 5-times chair-stand and the 4-stage balance test, respectively, and were analyzed using the Wilcoxon Signed Rank test. Results: Twenty-seven older patients (mean age 70.1, range 65-76) participated. The most common cancer sites were breast (48%) and prostate (41%). One participant withdrew due to personal reasons unrelated to the program. The remaining 26 participants completed the intervention. Attendance rate for the virtual component was 97.6% and independent component 84.7%. Participants perceived the program as rewarding and enjoyable (100%), felt this program prepared them to exercise on their own (92%), were confident to continue exercising on their own (81%), and would recommend the program to other patients (100%). At baseline, 33% (n = 9) ≥1 fall over the past 6 months. A statistically significant improvement in lower body strength was detected post-intervention ( p =.001), whereas no difference was detected in balance ( p =.059). Conclusions: This virtual, hybrid resistance and balance training program was feasible, overwhelmingly accepted by our older participants, and appeared effective in improving lower body strength. Findings from this study may have potential to inform design of a larger, randomized multi-site study.

Consensus‐based distributed control scheme for PCC voltage harmonic mitigation and enhanced power sharing in islanded microgrids

In the islanded microgrid, it is necessary to distribute the harmonic powers correctly among generators and mitigate the voltage harmonics at the point of common coupling (PCC) for effective microgrid operation. These control objectives are hard to satisfy at the same time with only one virtual impedance component. To simultaneously improve the microgrid voltage quality and share the distortion powers, a consensus-based distributed power-sharing scheme is proposed along with PCC harmonics mitigation. In the proposed control scheme, the controllable parts of output impedance at the fundamental and harmonic frequencies are separately tuned by simple integral controllers without depending on feeder impedance parameters. Compared to conventional control schemes, the proposed method is less complicated while ensuring a high voltage quality despite sudden changes in load power. A small-signal state-space model of the microgrid is analysed to validate the stability of the proposed control scheme, and its effectiveness is verified by experiments with a scaled-down microgrid system.

Laboratory stand with wireless interface for investigation of automatic control systems of dc electric drives

Purpose. Development of a laboratory stand with a wireless interface for the study and research of automatic control systems for DC electric drives.
 Methodology. Physical experiment on the developed laboratory bench, computer modelling, calculation and analytical methods.
 Findings. The study considered and analyzed the advantages and disadvantages of existing developments of laboratory stands with virtual and remote components, the possibility of organizing a wireless interface, taking into account cost-effectiveness, mobility, reliability and simplicity, as well as the possibility of using as a training stand. The connection of the stand by means of USB and Wi-Fi is developed. The STM32F103C8T6 microcontroller is used for the power switch and the automatic control system. The interface part consists of a NodeMCU board, a MicroSD card module, an interface control unit, a 16x2 LCD and an I2C converter. The UART-USB interface is used for information transfer and programming of the stand. The possibility of current remote transmission of information about the modes and parameters of the engine to a computer with a browser output by installing the Wi-Fi module ESP8266MOD. A closed system of automatic DC motor control with PID current regulators and EMF has been developed. Experiments were performed with a pulse and smooth increase in motor speed and variation of the components of the PID controllers using the control panel of the laboratory stand. All graphs of the results of the experiment were obtained on a web page with a fixed IP address in the browser via Wi-Fi.
 Originality. The structure of the remote monitoring and control system based on hardware and software combination of telecommunication and measuring systems is proposed and developed, which differs from the existing ones by the presence of current wireless transmission of information, which allows to remotely receive research data of automatic DC motor control systems.
 Practical value. The developed laboratory stand with the wireless interface allows to receive and store experimental data on parameters of the investigated engine in real time remotely.

Delivering a dietetic intervention to cardiovascular patients in the Covid era

Abstract Funding Acknowledgements Type of funding sources: Public Institution(s). Main funding source(s): Department of Health Introduction Healthy diet and body composition are core components of cardiac rehabilitation. Following the COVID outbreak in March 2020, our face-to-face cardiac rehabilitation programme (Our Hearts Our Minds) was suspended. The programme was then quickly moved to a virtual platform to continue to deliver the programme. Purpose Here we describe how the OHOM programme adapted our service to deliver the dietetic assessment and intervention on a virtual platform. Methods Pre-Covid the dietary component of OHOM consisted of a face-to-face Initial Assessment (IA) with a dietitian, group education sessions and an End of Programme assessment (EOP). Anthropometric measures and dietary habits were assessed including adherence to the Mediterranean diet via the Mediterranean Diet Score (MDS) toolkit. Using behaviour change techniques, tailored dietary advice was provided and goals agreed to educate on healthier food choices, increase adherence to Mediterranean diet and (if appropriate) promote weight loss and reduce central obesity. The assessment and intervention is now delivered virtually via telephone or video. Anthropometrics are self-reported with tape-measures supplied to assess waist circumference and advice provided on home-weighing. MDS is still assessed. The programme includes fortnightly coaching telephone consultations to review and reset goals, the option to attend a dietitian-led virtual group education session, access to a filmed educational video and submission of food diaries via the Fitbit app. Results From April to November 2020, 114 patients completed the virtual programme (65 telephone, 39 video). Dietetic outcomes are outlined in Table 1 with inclusion of data for a similar period one year previously (face-to-face) for comparison. Reductions in anthropometric measures and increased adherence to a cardio-protective diet were noted and the results for the two time periods are remarkably similar. Conclusion Delivery of a virtual dietetic component in cardiac rehabilitation is feasible, acceptable and just as effective as face-to-face based on preliminary data. Table 1: Dietary outcomes at IA and EOP Face-to-face assessments (April - March 2019) Virtual assessments (April - November 2020) IA EOP Change IA EOP Change Mean weight (in those with BMI >25kg/m2) 86.5 85.2 -1.3 91.4 88.6 -2.8 Waist circumference (cm) 104.3 103 -1.3 107 102 -5 Mean MDS (Range 1-14) 4.4 7.5 +3.1 4.8 7.8 +3 % Consuming oily fish once per week 20 57 +37 25 68 +43 Achieving fruit and vegetable target 16 61 +45 21 57 +36 Abstract Figure. Dietitian waist circumference tutorial

Подход к формированию виртуальной метструктуры цифрового проектного двойника корпоративной информационной системы машиностроительного предприятия

Currently, the methodology of system engineering is being formed, the product of which is, as usual, the creation of real objects information models, supplemented by virtual components, and on the contrary, virtual objects, supplemented by real components. For example, an information model of a technological object is a specification of real equipment, supplemented by a specification of the purchased equipment of a technological process and on the contrary. By analogy with general engineering in the field of technical activity, the metastructures of such information models must meet the V-shaped structure of the validation and verification processes. Therefore, models should be regularly checked during their life cycle to ensure that their structure and parameters correspond to real and virtual objects. At the present, there are conditions for a coordinated decision of technological objects system information modeling, taking into account their internal (physical) structure and of the digital environment the external structure. In general theoretical terms, the construction of system models is based on the problem of formal consistent description (grammatical calculus) of the structure and functional regularities of a set of objects and their connections in the subject area under study. The presented approach of the subject area system modeling under consideration is based on the classical model of a machine-building enterprise (MP) educational and production activities and a university. Aim. To apply the principles of the design approach for the formation of a corporate information system (CIS) engineering company metastructure digital twin, to explore the prospects of its application, to show the key information components in the management of subject-oriented knowledge and data, as well as the ability to scale technology in the formation of a digital environment for architecture and modern MP, improving the efficiency of business processes participants interaction. Materials and methods. The principles of the system engineering methodo¬logy (process approach, life cycle, etc.), an integrated approach and structural analysis of the design process according to the SADT (Structured Analysis and Design Technology) methodology, and the TOGAF (The Open Group Architecture Framework) methodology are used. Results. The proposed approach for system modeling the subject area is the development of works of the authors, demonstrates the possibility of scaling on the example of interaction of participants of the REC using part of the University's digital twin KIS enterprises of the real sector of the economy. The requisite of developing a knowledge management model and the increasing role of information search engines are shown. Conclusion. The proposed approach expands the application of the digital twin metastructure, allows correcting the enterprise architecture to improve the efficiency of business processes.