Mechanical Engineering - Research Publications
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ItemLean layout design: a case study applied to the textile industry(FapUNIFESP (SciELO), 2021-01-01)
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ItemPaper-based thesis and dissertations: analysis of fundamental characteristics for achieving a robust structure(FapUNIFESP (SciELO), 2021-01-01)
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ItemForecasting the length-of-stay of pediatric patients in hospitals: a scoping review(BMC, 2021-09-08)BACKGROUND: Healthcare management faces complex challenges in allocating hospital resources, and predicting patients' length-of-stay (LOS) is critical in effectively managing those resources. This work aims to map approaches used to forecast the LOS of Pediatric Patients in Hospitals (LOS-P) and patients' populations and environments used to develop the models. METHODS: Using the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) methodology, we performed a scoping review that identified 28 studies and analyzed them. The search was conducted on four databases (Science Direct, Scopus, Web of Science, and Medline). The identification of relevant studies was structured around three axes related to the research questions: (i) forecast models, (ii) hospital length-of-stay, and (iii) pediatric patients. Two authors carried out all stages to ensure the reliability of the review process. Articles that passed the initial screening had their data charted on a spreadsheet. Methods reported in the literature were classified according to the stage in which they are used in the modeling process: (i) pre-processing of data, (ii) variable selection, and (iii) cross-validation. RESULTS: Forecasting models are most often applied to newborn patients and, consequently, in neonatal intensive care units. Regression analysis is the most widely used modeling approach; techniques associated with Machine Learning are still incipient and primarily used in emergency departments to model patients in specific situations. CONCLUSIONS: The studies' main benefits include informing family members about the patient's expected discharge date and enabling hospital resources' allocation and planning. Main research gaps are associated with the lack of generalization of forecasting models and limited reported applicability in hospital management. This study also provides a practical guide to LOS-P forecasting methods and a future research agenda.
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ItemNo Preview AvailableHospital Investment Decisions in Healthcare 4.0 Technologies: Scoping Review and Framework for Exploring Challenges, Trends, and Research Directions(JMIR PUBLICATIONS, INC, 2021-08-26)BACKGROUND: Alternative approaches to analyzing and evaluating health care investments in state-of-the-art technologies are being increasingly discussed in the literature, especially with the advent of Healthcare 4.0 (H4.0) technologies or eHealth. Such investments generally involve computer hardware and software that deal with the storage, retrieval, sharing, and use of health care information, data, and knowledge for communication and decision-making. Besides, the use of these technologies significantly increases when addressed in bundles. However, a structured and holistic approach to analyzing investments in H4.0 technologies is not available in the literature. OBJECTIVE: This study aims to analyze previous research related to the evaluation of H4.0 technologies in hospitals and characterize the most common investment approaches used. We propose a framework that organizes the research associated with hospitals' H4.0 technology investment decisions and suggest five main research directions on the topic. METHODS: To achieve our goal, we followed the standard procedure for scoping reviews. We performed a search in the Crossref, PubMed, Scopus, and Web of Science databases with the keywords investment, health, industry 4.0, investment, health technology assessment, healthcare 4.0, and smart in the title, abstract, and keywords of research papers. We retrieved 5701 publications from all the databases. After removing papers published before 2011 as well as duplicates and performing further screening, we were left with 244 articles, from which 33 were selected after in-depth analysis to compose the final publication portfolio. RESULTS: Our findings show the multidisciplinary nature of the research related to evaluating hospital investments in H4.0 technologies. We found that the most common investment approaches focused on cost analysis, single technology, and single decision-maker involvement, which dominate bundle analysis, H4.0 technology value considerations, and multiple decision-maker involvement. CONCLUSIONS: Some of our findings were unexpected, given the interrelated nature of H4.0 technologies and their multidimensional impact. Owing to the absence of a more holistic approach to H4.0 technology investment decisions, we identified five promising research directions for the topic: development of economic valuation methodologies tailored for H4.0 technologies; accounting for technology interrelations in the form of bundles; accounting for uncertainties in the process of evaluating such technologies; integration of administrative, medical, and patient perspectives into the evaluation process; and balancing and handling complexity in the decision-making process.
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ItemNo Preview AvailableDesign of lean manufacturing-based strategies to improve the production process of a metalworking company(Inderscience Publishers, 2021-01-01)
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ItemNo Preview AvailableLean production teaching methods and learning assessment: a literature review(Inderscience Publishers, 2021)
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ItemNo Preview AvailableLean production teaching methods and learning assessment: a literature review(Inderscience Publishers, 2021)
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ItemA Conceptual People-Centric Framework for Sustainable Operational Excellence(Scientific Research Publishing, Inc., 2020)
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ItemCritical soft factors for card-based production systems implementation: A multi-method study(Associacao Brasileira de Engenharia de Producao - ABEPRO, 2021-01-01)Goal: Although card-based systems are a mature topic in literature, studies have focused mainly on how to optimize parameter of each system. The influential of human factors in the implementation of those systems have rarely been evaluated. Therefore, this study aims to understand what are the critical soft factors for a successful card-based systems implementation. Design / Methodology / Approach: A multi-method study is used in this research, combining systematic literature review, longitudinal case study, content analysis, interviews with experts and validations with two different groups. Results: The paper proposes a list of 15 soft factors critical to a successful implementation of card-based systems categorized in a “house framework” according to the level of analysis each factor is included. Limitations of the investigation: A single case study, although longitudinal, was conducted to proposed the list of factors. Therefore, further studies should be conducted to adapt the list to other organizations and contexts. Practical implications: Following the proposed list of factors, managers can increase the success in implementing a card-based system in their organizations. Originality / Value: This study combines different research methods in a unique way, since in the researchers' view, an individual method was not sufficient to answer the proposed research question. Moreover, the case study reported a failure implementation of a card-based system, a rare addition to literature which mainly presented success cases.
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ItemUma revisão de literatura sobre o design e planejamento de centros de distribuição(Laikos Servicos Ltda, 2020-01-20)Destaques: Dadas às dificuldades de implementação prática de um projeto de Centro de Distribuição (CD), torna-se essencial fornecer um estudo elaborado de projeto de CD. Portanto, esse estudo busca responder as questões de pesquisa relacionadas a as principais decisões para projetar e planejar os CD e quais são as características, vantagens e barreiras de tais decisões.Objetivo: Identificar os principais métodos de projeto e planejamento de CD, consolidando suas características, dificuldades, destacamento de lacunas e oportunidades de pesquisa.Desenho / Metodologia / Abordagem: A metodologia deste trabalho é uma revisão sistemática da literatura e em três etapas, que são: (i) definição do portfólio bibliográfico e eixos de pesquisa; (ii) análise bibliométrica; (iii) análise e discussão de lentes teóricas, apresentando lacunas e oportunidades de pesquisa. Os artigos recuperados e as conclusões desta pesquisa são restritos ao período de busca até julho de 2018.Resultados: Este estudo descreve como o conceito de projeto de implantação de CD foram aplicados, quais métodos são propostos e quais dificuldades foram encontradas na implantação e projeto, de acordo com a literatura. Como resultado, apesar do consenso da importância prática do projeto de CD, a maioria das pesquisas avalia as etapas do projeto de forma isolada. Os estágios de definição da localização e o processo de separação de ordens são os mais mencionados. E por fim, o contexto e a rede de distribuição são pouco considerados na análise das decisões do projeto do CD.Limitações da investigação: O estudo é decorrente da pesquisa de artigos científicos provenientes de bases de dados específicos e analisado sob a perspectiva da lente teórica de redes de distribuição. Portanto, a análise da literatura através de outras perspectivas pode apresentar outros resultados e lacunas de pesquisa.Implicações práticas: Em termos práticos, a pesquisa avalia como ocorre o planejamento e implementação de CD no contexto das redes de distribuição, dessa forma, permite auxiliar os gestores nas tomadas de decisões durante o projeto de novas instalações de CD, garantindo melhores resultados na sua operação.Originalidade/valor: Poucas investigações analisam extensivamente a rede de distribuição e todas as fases de um planejamento de projeto de CD visando um segmento de negócio específico, tornando a aplicação prática menos viável, lacuna preenchida por esse estudo.