Navegando por Data de Publicação, começando com "2023-06-16"

Filtrar resultados por ano ou mês

Agora exibindo 1 - 3 de 3

Processamento digital e análise estatística de sinais de áudio medidos através de dispositivos móveis para a aplicação no monitoramento do torneamento de ligas de titânio
(Universidade Federal de São Carlos, 2023-06-16) Porto, Ana Carolina; Shiki, Sidney Bruce; https://lattes.cnpq.br/0573973677787523; https://lattes.cnpq.br/5867795615323584
When human beings began to organize themselves into society and establish a tasks division, a search for process optimization began. These processes help in the social organization and in the economic growth, na optimization that will be addressed in this paper is monitoring machining processes, with the intention to reduce economic, time and material losses. In this research, an experimental study was carried out to collect data obtained through a mobile device, smartphone, microphone during the turning of a titanium piece in order to verify the mobile devices applicability in monitoring machining processes. The captured sound signals were computationally analyzed in the time and frequency domains, the analysis considered the root mean square (RMS), Discrete Fourier Transform (DFT) and Power Spectral Density (PSD) values of the collected signal. In addition, the study also compared the results obtained through the sound signal with vibration results obtained through an accelerometer in the same experiment, in order to prove or refute the monitoring effectiveness. The results showed that although the analyzed sensor, the smartphone microphone, is not as robust as traditional sensors, it was able to monitor the process, bringing results similar to those obtained with the accelerometer.
Adaptação transcultural do instrumento “Occupational Performance History Interview – II” para a língua portuguesa (Brasil)
(Universidade Federal de São Carlos, 2023-06-16) Gorla, Julia Andreza; Cruz, Daniel Marinho Cezar da; https://lattes.cnpq.br/7350460642976728; https://orcid.org/0000-0002-4708-354X; https://lattes.cnpq.br/0086806759482933; https://orcid.org/0000-0001-9193-0454
Introduction: The Occupational Performance History Interview – II is an Occupational Therapy instrument based on the Model of Human Occupation (MOHO), which seeks to know the history of the person's occupational performance and, from the information collected, assist in the elaboration of therapeutic goals and intervention planning. Objective: To conduct the cross-cultural adaptation of the instrument Occupational Performance History Interview-II (OPHI-II) Version 2.1, 2004 to the Brazilian Portuguese language. Methodology: based on the Guidelines for the Process of Cross-cultural Adaptation of Self-report Measures and the Report of the ISPOR Task Force for Translation and Cultural Adaptation, the cross-cultural adaptation of OPHI-II was carried out in 6 stages: 1) initial translation; performed by two independent translators; 2) synthesis of translations, with the discussion of divergences and agreements between translators; 3) back-translation, performed by other two independent translators in order to verify the similarity with the original version; 4) committee of specialists, composed of six occupational therapists recognized for their expertise, evaluated the statements in their conceptual, cultural, idiomatic and semantic equivalences; 5) pre-test, with the application of this version and completion of both the scoring scales and the questionnaire on the use of OPHI-II; and 6) final review, in which adjustments were made based on the feedbacks given by the participants. In step 4 (committee of experts), the evaluations were compared, and the agreement index (AI) was calculated for each part of the OPHI-II. For statements with AI lower than 80%, an occupational therapist with extensive knowledge in MOHO and national and international experience was consulted. In the pre-test stage (step 5), seven (n=7) students from the undergraduate course in Occupational Therapy and twelve (n=12) clients, from orthopedics and neurology clinics of the School Health Unit of the Federal University of São Carlos (USE-UFSCar), participated. Each interview was recorded and listened to by another occupational therapist, who also filled out the interview and the scoring scales so that inter-examiner reliability could be analyzed from the calculated AI. Results: Steps 1 to 4 were analyzed according to the MOHO concepts and the original OPHI-II instrument, thus leading to a pre-test version consistent with the foundations of the Model. In the pre-test stage, the AI were calculated, and the feedback given about the use, application and format of the instrument were analyzed for the formulation of the final version of the OPHI-II (Brazil). Conclusion: it is considered that the process of cross-cultural adaptation of OPHI-II for Brazilian use was successful, being available for future research aimed at deepening its psychometric measures and for the application with different clients of Occupational Therapy.
Práticas relacionadas a indústria 4.0 e suas aplicações no campo da ergonomia: análise da implementação de exoesqueletos
(Universidade Federal de São Carlos, 2023-06-16) Toniolo, Lucas Corrêa; Tonin, Luiz Antônio; https://lattes.cnpq.br/1835542837415565; Silva, Sérgio Luis da; https://lattes.cnpq.br/4164265591178698; https://lattes.cnpq.br/5860435607734659; https://orcid.org/0009-0003-8636-6539
The 4th industrial revolution is a new trend that brought innovations to the corporate world, however, at the same time, it raised questions about workers' health, making the study of the relationship between technologies of that era and Ergonomics plausible. Thus, the objective of this study was to identify practices related to Industry 4.0 and its applications and contributions in the field of ergonomics and to systematize knowledge in order to assist companies in their acquisition and implementation processes. With this, an integrative review was carried out and from it the application of the multiple case study methodology was proposed. For this second stage, questionnaires were created in the form of semi-structured interviews and these were applied to four industry professionals who had contact and experience with the technologies studied, in this case, industrial exoskeletons. From the collection of interviews, data were processed and analyzed, culminating in three distinct cases that enabled a dialogue between literature and practice. Thus, the results generated in this study identified that practices related to industry 4.0, which are linked to the field of ergonomics, are not properly framed in the literature. Much of this is due to a managerial fad, the lack of studies on the technologies sold and an industry of managerialism behind this theme. Therefore, from the results of the investigation, a technocratic profile of approach was identified for the implementation of passive industrial exoskeletons, which culminated in the proposition of a theoretical model of application based on Conception Ergonomics from the perspective of the integrative approach.