Análise do campo conceitual da engenharia de sistemas cognitivos e proposta de uma nova agenda de pesquisa

Henriqson, Éder; Saurin, Tarcísio Abreu

doi:10.1590/s0103-65132013005000056

Cited by 2 publications

(2 citation statements)

References 76 publications

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“…It is worth mentioning that the proposed new construction configuration addresses the understanding of the functioning and influence of human factors in human–machine interaction. This is because, in integrated and complex systems, reducing failures requires an understanding of the complexity of human functioning and its cognitive processes [ 77 , 78 ].…”

Section: Resultsmentioning

confidence: 99%

Numerical and experimental analyses for the improvement of surface instant decontamination technology through biocidal agent dispersion: Potential of application during pandemic

et al. 2021

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The transmission of SARS-CoV-2 through contact with contaminated surfaces or objects is an important form of transmissibility. Thus, in this study, we evaluated the performance of a disinfection chamber designed for instantaneous dispersion of the biocidal agent solution, in order to characterize a new device that can be used to protect individuals by reducing the transmissibility of the disease through contaminated surfaces. We proposed the necessary adjustments in the configuration to improve the dispersion on surfaces and the effectiveness of the developed equipment. Computational Fluid Dynamics (CFD) simulations of the present technology with a chamber having six nebulizer nozzles were performed and validated through qualitative and quantitative comparisons, and experimental tests were conducted using the method Water-Sensitive Paper (WSP), with an exposure to the biocidal agent for 10 and 30 s. After evaluation, a new passage procedure for the chamber with six nozzles and a new configuration of the disinfection chamber were proposed. In the chamber with six nozzles, a deficiency was identified in its central region, where the suspended droplet concentration was close to zero. However, with the new passage procedure, there was a significant increase in wettability of the surface. With the proposition of the chamber with 12 nozzles, the suspended droplet concentration in different regions increased, with an average increase of 266%. The experimental results of the new configuration proved that there was an increase in wettability at all times of exposure, and it was more significant for an exposure of 30 s. Additionally, even in different passage procedures, there were no significant differences in the results for an exposure of 10 s, thereby showing the effectiveness of the new configuration or improved spraying and wettability by the biocidal agent, as well as in minimizing the impact caused by human factor in the performance of the disinfection technology.

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Section: Resultsmentioning

confidence: 99%

Numerical and experimental analyses for the improvement of surface instant decontamination technology through biocidal agent dispersion: Potential of application during pandemic

et al. 2021

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“…Although the importance of a systemic approach to safety culture that also encompasses organizational structure is recognized, focusing on specific interactions between humans, work and artifacts remains relevant (Henriqson & Saurin, 2013;Reason, 1990). In this interaction, worker attention stands out among several cognitive aspects for its key role in reducing risks and human errors in production processes (Chelazzi et al, 2013;Duchowski, 2002;French et al, 2011;Giesbrecht et al, 2014;Henriqson & Saurin, 2013).…”

Section: Literature Reviewmentioning

confidence: 99%

Visual attention of experts and novices to a critical industrial maintenance task

et al. 2021

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In the industrial maintenance field, critical tasks are activities that can endanger operating processes and cause serious accidents if not performed correctly. These tasks are typically performed by professionals with a considerable level of knowledge and rely on prescribed procedures that flag the task, drawing the attention of task performers. Given the importance of reviewing work procedures and monitoring tasks for human error prevention, this study analyzed similarities and differences in the visual attention of expert and novice task performers while following procedures with and without flagging of a critical task. The study included 48 maintenance professionals, divided into two groups of performers: experts and novices. For attention analysis, eye-tracking technology was used to monitor their observation during the work procedure, recording data on time to first fixation, total fixation time and number of visits. The results indicate that in the procedure without flagging of the critical task, the numbers of fixations on and visits to the stages of the task were higher in the novice than in the expert group. In the flagged procedure, the visual attention of experts and novices was similar when considering all stages of the task. In conclusion, the tasks must be revised between the two groups, and the flagged procedure can be used as a guide for work monitoring, helping experts or novices to more easily select relevant information.

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Análise do campo conceitual da engenharia de sistemas cognitivos e proposta de uma nova agenda de pesquisa

Cited by 2 publications

References 76 publications

Numerical and experimental analyses for the improvement of surface instant decontamination technology through biocidal agent dispersion: Potential of application during pandemic

Numerical and experimental analyses for the improvement of surface instant decontamination technology through biocidal agent dispersion: Potential of application during pandemic

Visual attention of experts and novices to a critical industrial maintenance task

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