Engenharia e construção: quais variáveis contribuem para o sucesso dos projetos executados atualmente no Brasil?

Berssaneti, Fernando Tobal; Assumpção, André Del Grossi; Nakao, Osvaldo Shigueru

doi:10.1590/s0104-530x2014005000009

Cited by 10 publications

(12 citation statements)

References 21 publications

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“…Chicken Gelatin Commercial Gelatin The form used to translate the sensorial responses of consumers to a numeric value in a hedonic scale was as follows: 1-I disliked extremely, 2-I disliked very much, 3-I disliked moderately, 4-I disliked slightly, 5-I perceived no difference (neither like nor dislike), 6-I liked slightly, 7-I liked moderately, 8-I liked very much, and 9-I liked extremely [32,[37][38][39]. Based on the frequency of responses, sensorial data were compared using Student's t-test according to Equations (3) and (4) [38,40,41]. Gelatins of the same flavors were compared in pairs on the attributes: appearance, aroma, flavor and texture:…”

Section: Contents (%)mentioning

confidence: 99%

Valorization of Chicken Feet By-Product of the Poultry Industry: High Qualities of Gelatin and Biofilm from Extraction of Collagen

Santana

Gardim²,

Almeida

et al. 2020

Polymers

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In this research, products with high quality were obtained from natural sources. The sensorial qualities, chemical characterization, and physical properties of gelatin extracted from chicken feet were compared with commercial gelatins. The extraction process was performed using acetic acid on a concentration ranging from 0.318% to 3.682%, processing time between 1.0 h and 8.4 h and extraction temperature between 43.3 °C and 76.8 °C. After the end of each assay, the yield was measured. Results showed that, under the best conditions, the collagen extraction yield was above 8%, and comprised 78.525 g/100 g of protein. Collagen analyzed by ICP-MS was composed of 99.44% of macro-minerals that are of great importance to human health. ATR-FTIR analysis showed that approximately 70.90% of the total protein from chicken feet is collagen, whereas, in commercial gelatin, only 30.31% is collagen. When comparing chicken gelatin with commercial gelatin, most sensory attributes were similar and chicken gelatin gained acceptance by more than 80% of the consumers. Additionally, the collagen films obtained from chicken feet and swine showed water absorption, odors, and texture characteristics similar to commercial material, such as latex and celofane. Consequently, due to its similarity to human skin, it is possible to apply it as a biocurative.

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Section: Contents (%)mentioning

confidence: 99%

Valorization of Chicken Feet By-Product of the Poultry Industry: High Qualities of Gelatin and Biofilm from Extraction of Collagen

Santana

Gardim²,

Almeida

et al. 2020

Polymers

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“…Segundo Berssaneti et al (2014), as preocupações existentes com custo, prazo e qualidade do projeto são tradicionalmente utilizadas como critérios para a medição de sucesso de projetos e ainda são consideradas centrais para a medição de sucesso do mesmo.…”

Section: Resultsunclassified

Interrupções em projetos de engenharia consultiva em cenário de desestruturação organizacional

Pinca¹,

Rozzetto²

2018

Rev. iPecege

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ResumoA engenharia consultiva no Brasil experimentou, no início do século XXI, um grande crescimento advindo da pujante demanda por projetos de infraestrutura. Na esteira do acelerado desenvolvimento econômico e da grande injeção de capital -através de financiamentos públicos fartos e facilitados -armou-se um cenário de descuido com execuções realizadas sem planejamento prévio. Foram relegadas estratégias de planejamento, aplicação de ferramentas de gerenciamento consagradas e as boas práticas administrativas. Ocorreram problemas de paralisações delongadas em decorrência da mudança repentina de ambiente político-econômico, do envolvimento empresarial em atividades causadoras de insegurança jurídica e esvaziamento dos financiamentos públicos e sem determinação de prazos de vários projetos brasileiros. Neste cenário evidencia-se a importância do bom planejamento e da boa gestão, garantindo que o risco de ocorrência da paralisação seja conhecido, diminuído e seus possíveis efeitos mitigados. O objetivo foi orientar o gestor de projeto na escolha das melhores e mais adequadas ferramentas de gestão e evidenciar a necessidade da correta utilização das mesmas. Por meio de estudo de caso sobre fato passado em projeto executivo de saneamento, é trazido à luz que a ausência de elementos básicos da gestão de projeto, principalmente em fase inicial, contribuiu para a maior exposição aos riscos organizacionais e no maior impacto decorrente das paralisações do projeto. A falta de elementos subsidiários ao adequado planejamento, tais como: Estrutura Analítica de Projeto [EAP]; Estrutura Analítica de Riscos [EAR]; "Cronograma detalhado" e "Coleta de requisitos financeiros" foram determinantes para o fracasso no atingimento dos objetivos do projeto. Palavras-chave: adversidades em projetos, construção civil, consultoria, infraestrutura, paralisação de projeto AbstractThe advisory engineering in Brazil experienced a great growth coming from the growing demand for infrastructure projects by the beginning of the 21st century. In the wake of accelerated economic development and large capital injection a scenario of oversight with over-accelerated execution has set in by crowded and facilitated public funding. Strategies of planning, application of established management tools and good administrative practices were relegated. There were problems of stoppage as a result of the sudden change in the political-economic environment, corporate involvement in activities that caused legal uncertainty, decrease of public financing and indetermination of deadlines of several Brazilian projects. This scenario highlights the importance of good planning and good management, ensuring that the risk of occurrence of the shutdown is known, diminished and its effects mitigated. The objective was to guide the project manager to choose the best and most appropriate management tools and to highlight the need of the correct use. A case study was conducted in an executive sanitation project and the absence of basic elements of project management, especiall...

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“…Subsequently, however, there were credit constraints and high indebtedness, making these companies face a reality, in demanding greater discipline in their choice of projects and greater control in their execution with low costs, term and quality. Therefore, there has been an evolution of project monitoring practices in the civil engineering sector (Silva et al, 2014;Berssaneti et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Thus, project management methods and tools are needed (Prado, 2003). According to Berssaneti et al (2014), term, cost and quality are criterions of a project success. In this way, there are projects that need to be managed and evaluated periodically (Giacometti et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

An application of Earned Value Management (EVM) with Monte Carlo simulation in engineering project management

2019

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The fast changes in the Market make companies increasingly focus on project structures. A project differs from a routine activity because it is unique and must be managed and structured to provide expected benefits at no greater cost than anticipated. Therefore, it must be planned and controlled by identifying the deviations between the planned and the accomplished. In order to provide this monitoring, Earned Value Management (EVM) has been increasing accepted. In addition to showing indicators of progress, EVM can be used to forecast the project's final costs through simulated scenarios. This work aims to integrate and apply EVM with Monte Carlo simulation to predict the final costs of three detailed engineering projects, evaluating the performance of the model and the projects, in each specific case study. The results of the three projects simulations were evaluated in a qualitative and comparative way, showing that the integration between the tools generates useful forecasts for project management.

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Engenharia e construção: quais variáveis contribuem para o sucesso dos projetos executados atualmente no Brasil?

Cited by 10 publications

References 21 publications

Valorization of Chicken Feet By-Product of the Poultry Industry: High Qualities of Gelatin and Biofilm from Extraction of Collagen

Valorization of Chicken Feet By-Product of the Poultry Industry: High Qualities of Gelatin and Biofilm from Extraction of Collagen

Interrupções em projetos de engenharia consultiva em cenário de desestruturação organizacional

An application of Earned Value Management (EVM) with Monte Carlo simulation in engineering project management

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