Unit Operations
Mostrando 1-12 de 77 artigos, teses e dissertações.
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1. Population-based analysis of the epidemiology of the surgical correction of hyperhidrosis in 1,216 patients over 11 years: a cross-sectional study
Abstract BACKGROUND: Endoscopic thoracic sympathectomy is the definitive surgical treatment for hyperhidrosis and a nationwide study has suggested that cultural and socioeconomic factors play a role in the numbers of operations performed. Thus, there is a need to evaluate local data in order to understand the local epidemiology and trends in hyperhidrosis t
Sao Paulo Medical Journal. Publicado em: 2022
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2. Evaluation of patients undergoing emergency surgery in a COVID-19 pandemic hospital: a cross-sectional study
ABSTRACT BACKGROUND: The COVID-19 pandemic is threatening healthcare systems and hospital operations on a global scale. Treatment algorithms have changed in general surgery clinics, as in other medical disciplines providing emergency services, with greater changes seen especially in pandemic hospitals. OBJECTIVES: To evaluate the follow-up of patients un
Sao Paulo Med. J.. Publicado em: 2020-08
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3. Operational competencies and relational resources: a multiple case study
Abstract Purpose The purpose of this study was to use relational vision as a theoretical support for an investigation of how operational competencies are developed from the interaction of shared relational resources in the supply chain and to verify how these competencies allow the resources to be able to function, unity, integration and direction. Design/
RAUSP Manag. J.. Publicado em: 25/11/2019
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4. STUDENTS BUILDING DIDACTIC EXPERIMENTS AS A TOOL FOR TEACHING UNIT OPERATIONS AND PROCESS CONTROL FOR CHEMISTRY TECHNICIANS
The qualified preparation of technician chemistry students who will act directly in the operation and control of industrial chemical plants is a permanent challenge in the teaching-learning process, since such activities require a broad view of the process and a sum of knowledge’s areas such as unit operations, instrumentation and industrial process contro
Quím. Nova. Publicado em: 21/10/2019
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5. Operations strategy and analysis of competitive criteria: a case study of a food business
Resumo Este trabalho tem como objetivo propor uma forma alternativa para acessar a informação da prioridade dos clientes em relação aos critérios competitivos que uma empresa da indústria de alimentos necessita considerar. A partir desta abordagem, é possível identificar um conjunto consistente de informações que auxilie no suporte do processo dec
Gest. Prod.. Publicado em: 22/08/2019
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6. APPLICATION OF POLYCARBOXYLIC ACIDS AS BINDERS FOR TiO2 IMMOBILIZATION ON COTTON TEXTILES
ABSTRACT Immobilizing the photocatalyst on a support is an alternative solution to a critical issue in photocatalysis, which is the need for unit operations to remove the photocatalyst from the effluent. In this work, TiO2 was immobilized onto a cotton textile substrate by polycarboxylic acid binders (succinic and citric acids) using a solution deposition me
Braz. J. Chem. Eng.. Publicado em: 15/07/2019
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7. Esterificação do ácido oleico utilizando aluminossilicato mesoporoso modificado com óxido de zircônio
RESUMO Os desafios decorrentes do aumento populacional, do uso extensivo e degradação dos recursos naturais e da dependência dos recursos fósseis, tem despertado o interesse pelo desenvolvimento de tecnologias para a produção de combustíveis renováveis. Dentro deste contexto tecnologias para a produção de biodiesel tem sido bastante estudadas de fo
Matéria (Rio J.). Publicado em: 20/05/2019
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8. A produção enxuta sob a perspectiva da visão baseada em recursos: um estudo em uma organização do setor calçadista
Resumo O objetivo deste artigo é analisar como os recursos estratégicos contribuíram para a implementação da produção enxuta (PE) em uma organização do setor calçadista, sob a perspectiva da visão baseada em recursos (VBR). Tomando como base os pressupostos teóricos da PE e da VBR, foi desenvolvido um procedimento de análise composto de cinco et
Gest. Prod.. Publicado em: 16/05/2019
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9. A COMBINATION OF DISCRETE EVENT SIMULATION AND MULTI-CRITERIA ANALYSIS TO CONFIGURE SUGARCANE DROP AND HOOK DELIVERY SYSTEMS
ABSTRACT This article explores decision analysis regarding Drop and Hook (D&H) transportation operations at sugarcane mills. By means of a case study, a combination of a discrete event simulation model and multi-attribute utility theory was used to evaluate different configurations for sugarcane delivery systems using internal, external, or no D&H systems. A
Eng. Agríc.. Publicado em: 25/04/2019
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10. Outcomes of the Conversion of the Fontan-Kreutzer Operation to a Total Cavopulmonary Connection for the Failing Univentricular Circulation
Resumo Fundamento: O procedimento de Fontan-Kreutzer (FK) foi amplamente realizado no passado, mas a longo prazo gerou muitas complicações, resultando em falha na circulação univentricular. A conversão para conexão cavopulmonar total (CCPT) é uma das opções de tratamento. Objetivo: Avaliar os resultados da conversão de FK para CCPT. Métodos: Re
Arq. Bras. Cardiol.. Publicado em: 2019-02
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11. OPERAÇÃO CAFÉ PASSADO: UMA PERSPECTIVA DIDÁTICO-PEDAGÓGICA PARA O ENSINO EM ENGENHARIA QUÍMICA
In the present work, the application of a didactic activity proposed for the teaching-learning of mass transfer initial concepts unit operations for students of Introduction to Chemical Engineering course of a public institution was evaluated. For this, the class was separated in four moments: brief introduction to the subject, pre-test application, experime
Quím. Nova. Publicado em: 2017-09
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12. Effect of shrimp shells milling on the molar mass of chitosan
Abstract Shrimp shells are a raw material rich in chitin, a precursor of chitosan biopolymer. The variables of processing (demineralization, deproteination and deacetylation) can be manipulated to determine the main characteristics of chitosan, the degree of deacetylation (DD), and average molar mass. This study evaluated the influence of one of the unit ope
Polímeros. Publicado em: 2017-03