Location Of Equipment Research Articles

Uncertainty quantification of seismic response of nuclear reactor building using a three‐dimensional finite element model

AbstractAfter the 2011 Fukushima accident, seismic regulations for nuclear power plants (NPPs) in Japan have been strengthened to include countermeasures beyond design‐basis events. Therefore, the importance of seismic probabilistic risk assessments is a topic that deserves attention. Generally, uncertainty quantification has been a crucial undertaking to assess the fragility of NPP buildings. This study aims to quantify realistic uncertainties using a three‐dimensional (3D) finite element (FE) model to reflect the obtained results to the conventional simple sway‐rocking (SR) model, and to develop a seismic fragility assessment method that considers 3D effects. As a first step, a 3D FE model was developed, and a seismic response analysis was performed to evaluate the seismic response of the buildings. For comparison, a seismic response analysis using the conventional SR model was performed. For input ground motions, 200 types of simulated seismic ground motions, generated using fault‐rupture models were adopted. As a second step, two types of uncertainties are evaluated for uncertainty quantification: uncertainty for input seismic ground motion and that due to different locations of equipment installed on a floor. As a third step, to reflect the 3D effect on the uncertainty of the conventional SR model, were investigated the median and logarithm standard deviation of the response ratio (3D FE/SR) of the maximum acceleration of the two models. The results of epistemic uncertainty tended to increase with the increasing elevation level and the epistemic uncertainty result in the basement floor, where important equipment was installed, was relatively small. By reflecting this epistemic uncertainty into the conventional SR model, a more realistic fragility assessment that considers the 3D effect is expected by applying this result as epistemic uncertainty of the SR model of the fragility assessment.

Data-driven hierarchical learning and real-time decision-making of equipment scheduling and location assignment in automatic high-density storage systems

Automated high-density storage systems (AHDSS) have attracted widespread attention in recent years owing to their advantages of high throughput and space utilisation. However, owing to the characteristics of large-scale, multi-disturbance, and short-period task scenarios, a system is required to make instant and efficient decisions. To this end, this paper proposes a data-driven real-time decision-making method to solve the real-time equipment scheduling and dynamic location assignment problem in AHDSS. The proposed method comprises two phases: decision scheme learning and real-time decision-making. The operation state attribute features of the AHDSS were constructed to generate training data for equipment scheduling and location assignment scheme learning. Thereafter, a hierarchical learning and decision-making mechanism based on the deep belief network (DBN) is proposed. The integrated learning of better scheduling solutions was realised by establishing three-stage models of lift selection, shuttle selection, and location priority. Additionally, the Taguchi method was adopted to determine the best performance parameters for DBNs at different learning stages. Compared with other well-known machine learning algorithms, DBNs have a higher learning accuracy. Finally, a real-world AHDSS problem is studied, and the results demonstrate that the proposed approach outperforms existing dispatching rules.

Using simulation to support a new theatre setup

Following the redevelopment of the day case theatre complex at Chorley District General Hospital it was identified that new ways of working were required, and changes to patient processes would need to be made. Some of these were normal, expected, adaptations to be made when moving to a new working environment, such as the location and storage of equipment. The Resuscitation and Simulation Team, led by the associate Clinical Lead for Simulation, modelled the theatre list for the first day using simulated patients and in line with the ASPiH standards [1]. This gave the theatre staff the opportunity to run through cases in real time and gauge when patients needed to be sent for, how long was needed for setting up, and at what time they could safely call for the next patient without causing unnecessary delays or having patients waiting in corridors. Each step in the process was followed by a debriefing so that the actions could be discussed and any changes made. The feedback was positive and team members found it extremely useful to simulate their upcoming lists. As expected, there were several patient flow related issues raised, mainly around timings and logistics ( Issues identified following simulation of a theatre list Simulation of normal business can be successfully used to improve patient safety and the confidence of clinical staff when developing new clinical areas. 1. Association for Simulated Practice in Healthcare. Simulation-Based Education in Healthcare. 2016. Standards Framework and Guidance. Association for simulated practice in healthcare (ASPiH) standards for simulation-based education.

The AWARE project (fAmiliarity with workplace and resuscitation equipment)

Doctors joining Emergency Departments (ED) have individual training needs based on their experience and background of working in different countries or hospitals, and a large proportion of junior doctors work for less than a year in a single ED. We designed the AWARE project to analyse the challenges associated with familiarity with the physical workplace and resuscitation equipment for doctors new to an ED environment. The goals of the project were to assess the diverse learning needs [1], impact of unfamiliarity with environment and equipment on physician confidence, ability to participate in resuscitation scenarios, and to develop a simulation-based intervention to support new doctors in ED. We developed a questionnaire for multidisciplinary staff to explore problems with workplace unfamiliarity and its impact on different aspects of performance during resuscitation. We included questions (tailored to professional background) about the management of resuscitation and the location of vital equipment under the broad headings of: preparation, airway, breathing, circulation, and other critical interventions. We collected 104 completed questionnaires (67 from doctors, 37 from nurses). Over 90% of staff felt that lack of workplace familiarity negatively affects performance and leads to delay in performing procedures. 92% of the nurses felt that it was easier and more efficient to work with doctors who were familiar with the workplace. Quantitative data revealed issues with locating equipment such as: 60% Doctors did not know where to find mechanical-CPR device (LUCAS). 81% of the Senior House Officers did not know where to find end-tidal CO We have identified familiarity with workplace and resuscitation equipment as a key learning need. The data from Phase 1 of the project have informed the development of scenarios for new induction processes in phase 2. Simulation is an important tool for education but also for induction and analysis of systems and pathways [2]. Phase 2 will also use novel technologies including 360° videos to allow staff new to the department to access ED environments and equipment virtually and at their convenience. Future work will involve monitoring the success of the interventions in phase 2. 1. Grant J. Learning needs assessment: Assessing the need. Br Med J. 2002;324(7330):156–9. 2. Health Education England. Simulation immersive technologies.

Automation for structured cabling system in data centers using Building Information Modelling

Abstract Building Information Modelling (BIM) involves management efforts, tools and applications for enhancing information flow and, therefore, productivity of projects; adoption of BIM and the increasing use of digital technologies (e.g. data centers) in construction and operation of buildings, as well as in maintenance can transform the way how the industry works. Telecommunication cabinets equipped with large number of components of different types are inevitable parts of data centers having a significant influence on the efficiency and the reliability of data centers. Since the layout of equipment inside telecommunication cabinets is crucial in data centers and the ideal location of equipment inside each cabinet can be unique, an algorithmic and automated process is necessary for the cabinet façade scheme design; manually created diagrams can lead to errors. Furthermore, precise and up-to-date pieces of information about the special layout of equipment in each cabinet are also important for the further operation and maintenance. As an answer to this challenge, a BIM-based approach and method are presented in this article that can result in significant cost savings. When designing data centers, special attention must be paid to the location of telecommunication cabinets, the design of cable routes, and the layout of equipment inside. The novel cabinet family for BIM technology-based method has been developed for the improvement of data center design. Cable trays plug-in can lead to higher quality and efficiency of construction and the facility management as well. The main goal of the case study: optimization of the design process of structured cabling systems (SCS) in data centers (DC) using new additional BIM capabilities. The novel dynamic cabinet family have several distinctive features: the ability to select in the properties which equipment will be inside the cabinet and which unit will occupy; possibility to change and add equipment inside the cabinet; creation of cabinet façade scheme based on equipment inside the cabinet; automatically created specification; Cable tray plug-in can improve and automate the design process in the following areas: place trays depending on the installation method (wall, floor, ceiling); place elements of the trays (hangers, consoles, racks) in a user-defined interval; place tray connectors based on selected connector type and tray type at user-selectable spacing; adding a tray cover and a partition in the tray properties; automatically created specification of all cable trays elements. The model created in BIM can be used for further operation and maintenance. To reach it, each of the elements or groups of elements contains a unique number that allows to bind its parameters and geometry for further export and use in the production model.

Guidelines on Asset Management of Offshore Facilities for Monitoring, Sustainable Maintenance, and Safety Practices.

Recent activities in the oil and gas industry have shown an increasing need for monitoring engagements, such as in shipping, logistics, exploration, drilling, or production. Hence, there is a need to have asset management of these offshore assets (or facilities). Much of the offshore infrastructure is currently approaching or past its operational life expectancy. The study presents an overview on asset management of offshore facilities towards monitoring, safe practices, maintenance, and sustainability. This study outlines the major considerations and the steps to take when evaluating asset life extensions for an aging offshore structure (or asset). The design and construction of offshore structures require some materials that are used to make the structural units, such as offshore platform rigs, ships, and boats. Maintaining existing assets in the field and developing new platforms that are capable of extracting future oil and gas resources are the two key issues facing the offshore sector. This paper also discusses fault diagnosis using sensors in the offshore facilities. The ocean environment is constantly corrosive, and the production activities demand extremely high levels of safety and reliability. Due to the limited space and remote location of most offshore operations, producing cost-effective, efficient, and long-lasting equipment necessitates a high level of competence. This paper presents the guidelines on asset monitoring, sustainable maintenance, and safety practices for offshore structures. In this study, the management of offshore structures were also presented with some discussions on fault monitoring using sensors. It also proposes sustainable asset management approaches as guidelines that are advised, with policy implications.

Investigation of the Visual Environment of Railway Station Stairs Using Qualitative and Quantitative Evaluation Methods

A qualitative evaluation was performed by comprehensively considering the lighting environment of each staircase of 20 railway stations in Tokyo, the width of the stairs, the type of ceiling, wall lighting fixtures, and the color. As a result of the quantitative evaluation of 20 stairs, it was found that a difference of up to 400 lx occurred in the measurement results of the entrance, exit, and middle landing, even for the same stairs. As a result of qualitative evaluation, it was found that the quantitative evaluation result and the simple proportional relationship were not established. It was found that simply physically brightening a space cannot make a comfortable and safe space, and in some cases, glare is likely to occur. As a result of the analysis of variance and correlation analysis, it was found that the characteristics of the space, especially the material of the wall and the location of the lighting equipment, had a large effect on the impression of the space. As a result of simulation analysis, it was found that the performance varied greatly depending on the installation location of the lighting. In particular, the method of installing the line light source close to the ground was effective. In designing stair lighting for public facilities in the future, it is considered that qualitative factors such as the finishing of walls and ceilings, installation positions, and angles of lighting fixtures, which are environmental components other than lighting, should also be considered.

Multiobjective optimization of process equipment distribution: Effect of pumping cost

The location of process equipment is an important issue for the industry. Poor distribution directly affects the safety and economy of the process. In this work, a multi-objective optimization is proposed to optimize the distribution of the layout, minimizing the annual cost and the risk of a domino effect. The optimization model minimizes the domino effect risk by evaluating the consequences and frequency of accidents due to explosions. The cost function considers equipment, pipes, land, active and passive safeguards, and the cost of explosion and pumping. The resulting model corresponds to an MINLP. For multi-objective optimization the ε-constraint method is used. The model is solved using GAMS®. The case study is the biodiesel production process using ethanol at supercritical conditions. The HPSI index is used to identify dangerous equipment. The fault tree methodology is used to estimate the frequency of accidents. The influence of pump cost on the safety and location of the equipment is determined. Under the consideration of the case study, pumping costs could represent more than 40% of the total annual cost. Safe distributions can be generated without considering the cost of pumping within the optimization, but according to the results of this work operating costs could be up to 80% higher when such cost is included. Multi-objective optimization allowed to find the best solution for this problem.

ПІДВИЩЕННЯ ЕФЕКТИВНОСТІ ТЕХНІЧНОЇ РОЗВІДКИ

Technical reconnaissance is the first stage in the restoration of weapons and military equipment damaged during hostilities. The tasks of technical reconnaissance are to collect and analyze data on the number, location and condition of equipment that has failed due to enemy actions, personnel errors or operational failures. The use of the latest technologies reduces the time required for technical reconnaissance. It is proposed to use unmanned aerial vehicles to determine with high accuracy the coordinates of samples of damaged equipment and to obtain visual information about their condition. This makes it possible to carry out a preliminary determination of the possibility of evacuation of damaged equipment remotely, before the departure of the technical reconnaissance team to the sample of weapons. The use of information technology provides new opportunities. When planning the route of technical reconnaissance groups, you can use the well-known task of the salesman, which is to find the shortest route that passes through all the specified points at once and ends at the starting point. Many numerical algorithms have been developed to solve this problem. All these methods are implemented using EXCEL spreadsheets and are freely available on the Internet. When planning the optimal route, the geographical coordinates of damaged weapons samples should be determined using unmanned aerial vehicles. GOOGLE MAPS electronic maps determine the distances between each pair of points to be traversed. These values form a matrix of distances. Then the solution search program built into EXCEL is called. The result is the optimal sequence of points and the total length of the route The calculations performed showed that the routes found are indeed the shortest possible. Keywords: technical reconnaissance, optimal route, unmanned aerial vehicles, salesman task.

Excellence in Communication and Emergency Leadership (ExCEL): Pediatric Critical Care Resource Utilization Workshop for Residents.

IntroductionEfficiently locating critical equipment and prompt defibrillator usage are crucial steps when managing a critically ill patient or a code. However, resident experience in this area is limited. This workshop focused on the identification of critical care equipment in the pediatric code cart and transport bag along with timely, appropriate, and effective use of the defibrillator when needed.MethodsThe workshop utilized a combination of traditional didactics and hands-on skills stations to instruct learners on the location of pediatric critical care equipment and the proper use of a defibrillator. It was designed for residents across all levels of training who care for pediatric patients (including pediatrics, medicine-pediatrics, triple board [pediatrics, psychiatry, and child psychiatry], family medicine, and emergency medicine residents) and can be adapted for different session durations and group sizes.ResultsThis workshop was conducted at two separate institutions, with a total of 95 resident participant encounters. Participants strongly agreed that the workshop was effective in teaching our learning objectives. Residents reported high levels of confidence in their ability to recognize and identify the location of critical care equipment in the code cart and transport bags and to appropriately use the defibrillator for both defibrillation and synchronized cardioversion.DiscussionThis workshop provided residents with instruction and practice in locating and utilizing pediatric critical care equipment. The structure and timetable of this curriculum can be adapted to the needs of individual institutions’ programs and different numbers of workshop participants.

Using a Patient Identification Checklist: How to Make This a Never Safety Event in Perioperative Services

<h3>Background Information</h3> Patient identification is one of the Joint Commission National Patient Safety Goals. Positive patient identification involves accuracy, verification and two-way communication. Occasionally, patient armbands did not match patient labels or paperwork, leading to incorrect patient identification. Safety Events were placed and reviewed at the executive level as high-risk safety events that achieved institutional support. Preoperatively, errors in patient identification can lead to potentially serious errors. The check-in area was able to identify workflow inconsistencies, interview techniques and equipment locations as opportunities for improvement. The focus was on patient wristbands during check in, leading to the development of a checklist and subsequent audits to measure compliance. <h3>Objectives of Project</h3> To maintain a trend of overall reported patient ID events, to sustain no high harm and reduce patient ID reported procedures events, as they relate to safety culture and accountability by 25% six months after training in Just Culture and accountability. <h3>Process of Implementation</h3> A review of current workflow and observation audits were completed prior to beginning the pilot. A Patient Identification Checklist supporting hospital policy was developed. Education to staff and 50 in-person audits were completed to observe the wristband check-in process, using an electronic audit. The checklist was laminated and posted at eye level of the Patient Service Coordinator (PSC). The wristband and label printer were relocated closer to the workstation for ease of use. The patient charts filing order was changed from OR room number to alphabetical order (by last name) to reduce chart adjustments. The level of lighting was also adjusted to improve visualization by patients and staff. <h3>Statement of Successful Practice</h3> The baseline data included five patient ID safety events for PACU/Preop and the implementation of the new workflow resulted in zero patient ID events after the pilot. The patient ID wristband checklist helped reduce the number of patient ID events related to wristbands but is dependent on the employee adhering to the checklist. <h3>Implications for Advancing the Practice of Perianesthesia Nursing</h3> Not verifying patient information is a top causal factor for patient ID overall. Reminding staff about the importance of adhering to the checklist and following best practice standards for patient identification can help ensure this becomes a Never Event in Perioperative Services.

Performance Comparison of Wireless Aerial 3D Cellular Network Models

In this letter, stochastic geometry tools are utilized to compare the downlink performance of two wireless cellular network models with Unmanned Aerial Vehicles (UAVs), in terms of coverage probability and average achievable rate. The considered models are: i) a truncated octahedron-based cellular network, referred to as <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">regular</i> in the following, and ii) a binomial-Voronoi cellular network. The locations of all UAV-user equipments (UAV-UEs) are modeled as a three-dimensional (3D) Poisson Point Process (PPP) in both cellular models. Analytical expressions on coverage probability and achievable average rate are derived, and numerical results are presented. The binomial-Voronoi network is also compared via Monte-Carlo simulations to a regular network with uniformly random UAV-UE receiver selection policy.

STAR-RIS Aided NOMA in Multicell Networks: A General Analytical Framework With Gamma Distributed Channel Modeling

The simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) is capable of providing full-space coverage of smart radio environments. This work investigates STAR-RIS aided downlink non-orthogonal multiple access (NOMA) multi-cell networks, where the energy of incident signals at STAR-RISs is split into two portions for transmitting and reflecting. We first propose a fitting method to model the distribution of composite small-scale fading power as the tractable Gamma distribution. Then, a unified analytical framework based on stochastic geometry is provided to capture the random locations of RIS-RISs, base stations (BSs), and user equipments (UEs). Based on this framework, we derive the coverage probability and ergodic rate of both the typical UE and the connected UE. In particular, we obtain closed-form expressions of the coverage probability in interference-limited scenarios. We also deduce theoretical expressions in conventional RIS aided networks for comparison. The analytical results show that optimal energy splitting coefficients of STAR-RISs exist to simultaneously maximize the system coverage and ergodic rate. The numerical results demonstrate that: 1) STAR-RISs are able to meet different demands of UEs located on different sides; 2) STAR-RISs with appropriate energy splitting coefficients outperform conventional RISs in the coverage and the rate performance.

Automatic infrared image recognition method for substation equipment based on a deep self-attention network and multi-factor similarity calculation

Infrared image recognition plays an important role in the inspection of power equipment. Existing technologies dedicated to this purpose often require manually selected features, which are not transferable and interpretable, and have limited training data. To address these limitations, this paper proposes an automatic infrared image recognition framework, which includes an object recognition module based on a deep self-attention network and a temperature distribution identification module based on a multi-factor similarity calculation. First, the features of an input image are extracted and embedded using a multi-head attention encoding–decoding mechanism. Thereafter, the embedded features are used to predict the equipment component category and location. In the located area, preliminary segmentation is performed. Finally, similar areas are gradually merged, and the temperature distribution of the equipment is obtained to identify a fault. Our experiments indicate that the proposed method demonstrates significantly improved accuracy compared with other related methods and, hence, provides a good reference for the automation of power equipment inspection.

Radio Environment Map Construction Based on Gaussian Process With Positional Uncertainty

Radio Environment Map (REM) is an effective tool for cognitive radio spectrum management. In the process of REM construction, the accurate location of equipment with measurement capability is often difficult to obtain, and inaccurate location information will have a more serious impact on mapping. In this letter, based on variational inference, we propose a Gaussian Process with positional uncertainty (GP-PU) algorithm for constructing a REM within the range of positional uncertainty, and by using the real dataset provided by the 2019 “Huawei” Mathematical Modeling Competition, the effectiveness of the algorithm is verified. In addition, we visualize REM to demonstrate that the GP-PU algorithm can obtain favorable REM. Finally, the simulation results show that the GP-PU algorithm outperforms the traditional method in terms of continuous hierarchical probability score (CRPS) and root mean square error (RMSE).

RECIRCULATING AQUAPONIC SYSTEM ON DWC TYPE FLOATABLE SUPPORT AT ICDIMPH – HORTING

A recirculating aquaponic system on DWC type floatable support was carried out during the research activities carried out at ICDIMPH-Horting Bucharest in the period 2017-2021. It works on the principle of communicating vessels and satisfies the technological needs of fish and plant breeding. The system was placed in a micro-greenhouse made of polyethylene foil, according to a plan for the location of technological equipment, by reconditioning and arranging tunnels for growing of grafted plants. The construction included tunnels with a length of 7.40 m and a width of 1.81 m (fish growth tunnel, 70 cm high, made of 20 mm thick OSB boards, mesh and durable foil, 8 rectangular basins, with holes for aeration, water supply and drainage and inside two layers of ultra-additive foil, 0.2 mm thick and and tunnels for growing plant material), reconditioned by mounting a protective foil, attached in PVC clips to the skeleton of the tunnel and the base of the pools with an inclined slope of 5-10% for draining water and residues), installations, pumps, filters. It has been tested for growing carp (Cyprinus carpio) and lettuce (Lactuca sativa). Fish waste have been food for plants, and plants have naturally filtered water for fish, phytosanitary treatments with synthetic substances have been eliminated, lettuce obtained has had from quality categories I and II, the fish has had hematological parameters in the reference ranges indicated in the speciality literature for carp.

Improving the Quenching of the Undercarriage Space due to the Adhesive Properties of Gel-Forming Compositions

The issue of increasing the technological and technical capabilities of firefighting undercarriage space at subway stations due to more efficient, due to adhesion to the burning surfaces of gel-forming compositions is considered. It is proposed to use a special cart to deliver the gel-forming system Na2O·2,95SiO2 – CaCl2 to hard-to-reach locations of electromechanical and other equipment of electric trains. The analysis of these experiments is carried out by comparing the time and mass of spent gel-forming compositions, water, fire-extinguishing powder when extinguishing model hearths close to the real undercarriage space. It is determined that due to the adhesion of the gel to the surface of the combustible substance, it is possible to reduce the loss of extinguishing agent in comparison with water or extinguishing powder.

THE USE OF PERSONAL PROTECTIVE EQUIPMENT WHEN APPLYING A POLYMER COATING TO EXTERNAL INSULATION IN EXISTING ELECTRICAL INSTALLATIONS

The application of hydrophobic coatings based on organosilicon polymers is one of the effective methods of ensuring the required level of reliability of electrical equipment insulation operation on the surface of which a layer with high electrical conductivity can form. An important aspect of such works is protection of life and health of workers from harmful and dangerous factors by means of personal protective equipment. It is noted that the formation of requirements for their use, as well as the rules of selection and provision is carried out according to the assessment of risks for the health of workers. Improvement of the labor protection system at Ukrainian enterprises is based on the Order of the Ministry of Social Policy of 29.11.2018, which actively cooperates with the International Labor Organization. The purpose of the study is to determine the most likely risks when performing work on polymer coating at the existing power facilities, the analysis of existing personal protective equipment against these risks assessment of the convenience of their application. For this purpose the data from the Registers of risks of the enterprises where the works were performed, own observations, impressions and recommendations of the team members were used. The overwhelming majority of equipment which was covered with the coating falls on the voltage classes of 110 kV and above. The size and location of such equipment require the mandatory use of safety harnesses and safety helmets. The technological procedure of coating deposition was considered and the factors which can cause damage to the health of the employees were singled out. The principles of operation of different types of personal protective equipment against these factors and peculiarities of their application when working at the operating power facilities are analyzed. Particular attention is paid to respiratory protection equipment. Signs are marked, at appearance of which it is necessary to perform operative replacement of protective means. The conclusions from the study defined the minimum equipment of personal protective equipment which must be provided to the employees of the teams for applying hydrophobic polymer coating.

Real-time localization for underwater equipment using an extremely low frequency electric field

A new real-time underwater equipment location method adopting an electric field induced by a standard current source is proposed. Our goals were real-time tracking and location of stationary or moving underwater equipment both in shallow and deep seas, under noisy conditions. The main features of this method are as follows: (1) a standard current source on the water surface, which can be towed by a vehicle, consisting of two electrodes, a signal generator, and a GPS unit; (2) measurement of the extremely low frequency (ELF) electric field emitted by the current source, made possible by electric field sensors on the underwater equipment; (3) position of the underwater equipment is estimated in real time based on a progressive update extended Kalman filter (PUEKF), which is carried out using the propagation model of an ELF electric field because the electric field at the position of the underwater equipment and the current source position are known. We verified the accuracy of our method and confirmed real-time location feasibility through numerical, physical scale, and real-time sea experiments. Through numerical experiments, we verified that our method works for underwater equipment location in real-world conditions, and the location error can be less than 0.2 m. Next, real-time location experiments for stationary underwater measuring equipment in water tank were conducted. The result shows that the location error can be less than 0.1 m. We also confirmed real-time location feasibility through the use of offshore experiment. We expect that our method will complement conventional underwater acoustic location methods for underwater equipment in acoustically noisy environments.

AUTOMATION OF DESIGN OF EDUCATIONAL PREMISES WITH SAFE WORKING CONDITIONS

When organizing the educational process in higher education institutions, safe conditions must be created that meet all the general current requirements of labor protection. The most common physical factor of adverse effects on students in classrooms are man-made electromagnetic fields around each technical means and in different configurations of the relative location of equipment. Based on the fundamental physical relations and dipole models of propagation of electric and magnetic components of electromagnetic fields using EMF LFSourse software, models of propagation of electric and magnetic fields of personal computer components were obtained. This visualized the propagation of an electric field around liquid crystal monitors, magnetic fields around personal computer system units, and uninterruptible power supplies. The result is a spatial distribution of electric and magnetic field strengths in computerized workplaces. These models allow you to streamline the relative position of personal computers in computer classrooms and other classrooms where computers are located in terms of electromagnetic safety. Detailed models of the configuration of electric and magnetic fields allow to obtain the propagation of fields around the electrical equipment of training laboratories. The example of modeling the propagation of the electric and magnetic components of the electromagnetic field of personal computer components shows the possibility of providing safe configurations of individual workplaces and many workplaces in computer classrooms. It is expedient to create models of propagation of other physical factors of technogenic origin – sound, infrasound, anomalous distribution of air ion concentrations, etc. Modeling allows you to place equipment in training laboratories at the design stage, adhering to safe conditions in the organization of the educational process.