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description Publicationkeyboard_double_arrow_right Article 2009 United KingdomPublisher:Universidade Federal de São Carlos Authors: Jabbour, Charbel Jose Chiappetta; Santos, Fernando Cesar Almada;handle: 1893/24746
O objetivo deste artigo é lançar luzes sobre as implicações da mudança climática para as organizações. Para fazer frente a esse debate, são explorados: o conceito de "inteligência ambiental" (IA); as estratégias por meio das quais as organizações fazem frente ao desafio da mudança climática; as oportunidades que explicam a adoção dessas estratégias; e o papel fornecido pela função produção para que tais estratégias possuam o efeito desejado. Por fim, tais conceitos são sistematizados, buscando-se uma integração dos modelos teóricos existentes, até então considerados de maneira estanque.The aim of this paper is to enlighten the implications of climate change for organizations. To deal with this subject, the follow issues are analyzed: concept of environmental intelligence; opportunities which justify the adoption of these strategies, and the main role performed by the production function to implement such strategies. Finally, concepts of prior theoretical models are taken into account.
University of Stirli... arrow_drop_down University of Stirling: Stirling Digital Research RepositoryArticle . 2009License: CC BY NCFull-Text: http://hdl.handle.net/1893/24746Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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more_vert University of Stirli... arrow_drop_down University of Stirling: Stirling Digital Research RepositoryArticle . 2009License: CC BY NCFull-Text: http://hdl.handle.net/1893/24746Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=1893/24746&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2006 Brazil, CanadaPublisher:Universidade Federal de Santa Maria Authors: Vale, Ailton Teixera do; Sablowski, Alexander Rudolph Marin;handle: 1807/44889
RESUMO Neste trabalho, é feita a análise da eficiência de produção de uma serraria de pequeno porte, localizada no estado de São Paulo, utilizando como ferramentas a “análise de fluxo de massa” e “análise de fluxo de energia”. O objetivo foi avaliar a linha de produção e comparar as ferramentas utilizadas em função dos resultados obtidos e aplicabilidade. Concluiu-se que o “lay out” de disposição dos maquinários deve ser alterado e deve-se utilizar um melhor planejamento do gabarito de corte para que o sistema se torne viável em função da baixa eficiência com grande porcentagem de perda e uso inadequado dos equipamentos e matéria-prima. As ferramentas forneceram resultados similares e por causa da aplicabilidade, propõe-se a utilização da “análise de fluxo de massa” para avaliação de comportamento produtivo de serrarias. ; ABSTRACT This is the analysis of the efficiency of production of one small sawmill, located in São Paulo, using as an instrument of study the “Mass and Energy Flow”, available in the production line. It was concluded that the disposal of the machines should be modified, and that the inclusion of a process of planning of cut design is necessary so that the system becomes viable, since the current configuration presents low income with great percentage of loss and inadequate use of equipment and raw material. Concerning the tools, similar results were found and because of its ease of utilization the “mass and flow” is recommended to the sawmill pattern evaluation.
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more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2018 CanadaAuthors: Cabral, Alexandre;handle: 11143/17137
Resumo: O aproveitamento energético do biogás de aterros sanitários é uma alternativa sustentável para a disposição final de gases residuais. A estimativa teórica da produção desse biogás torna-se uma ferramenta muito útil para a avaliação de viabilidade e dimensionamento de sistemas de coleta de gás. Os modelos de geração de biogás de aterro mais utilizados atualmente são os baseados em equações de decaimento de primeira ordem. Os modelos LandGEM e IPCC foram utilizados neste trabalho para a estimativa da geração de gases no aterro municipal de Guarapuava (PR, Brasil), onde os principais parâmetros foram escolhidos com base nos dados frequentemente aplicados para cada modelo: valores default sugeridos para as condições locais específicas, para a aplicação do software LandGEM; e cálculo do potencial de geração de metano (L0) a partir da análise gravimétrica dos resíduos, para a aplicação da equação sugerida pelo IPCC. Estimou-se uma produção total de biogás de 44.466.711 Nm3.ano-1 aplicando LandGEM e 60.080.906 Nm3.ano-1 aplicando IPCC, onde os picos de produção foram observados nos anos de 2021 e 2020, respectivamente. A escolha do modelo mais adequado dependerá dos dados disponíveis e, para maior aproximação de resultados reais, os parâmetros adotados devem ser analisados com cautela, considerando as diferentes condições climáticas e operacionais de cada caso. ; Abstract: The energetic use of landfill biogas is a sustainable alternative for the final disposal of waste gases. The theoretical estimation of the production of this biogas becomes a very useful tool for evaluating the feasibility and design of gas collection systems sizing. The most widely used landfill biogas generation models are those based on first-order-decay equations. LandGEM and IPCC models were used in this work to estimate the generation of gases in the municipal landfill of Guarapuava (PR), and the main parameters were chosen based on the frequently applied data for each model: default values suggested for the specific local conditions,for the application of LandGEM software; and calculating the methane generation potential (L0) from the gravimetric analysis of the residues, for the application of the equation suggested by the IPCC. A total biogas production of 44,466,711 Nm³.ano-1 was estimated by applying LandGEM and 60,080,906 Nm³.ano-1 using IPCC, whose production peaks were observed in the years 2021 and 2020, respectively. The choice of the most appropriate model will depend on the available data and, for better approximation to real results, the parameters adopted should be analyzed with caution, considering the difference in climatic and operational conditions of each case.
Université de Sherbr... arrow_drop_down Université de Sherbrooke: Savoirs UdeSArticle . 2018License: CC BY NC NDFull-Text: http://dx.doi.org/10.5380/biofix.v3i1.56038Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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more_vert Université de Sherbr... arrow_drop_down Université de Sherbrooke: Savoirs UdeSArticle . 2018License: CC BY NC NDFull-Text: http://dx.doi.org/10.5380/biofix.v3i1.56038Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2016 CanadaAuthors: Cabral, Alexandre; Capanema, Marlon André;handle: 11143/17143
Resumo: O presente estudo teve como objetivo avaliar a estrutura de correlação do volume de biogás gerado com as variáveis físico-químicas umidade, pH, alcalinidade, demanda química de oxigênio (DQO) e sólidos totais voláteis (STV), mediante uma análise de componentes principais (ACP). As repetições de cada tratamento, tanto para o inóculo quanto para o substrato, foram submetidas à análise de correlação de Pearson para se determinar se poderiam ser tratadas como réplicas. Para tanto, foram utilizadas 92 unidades amostrais (número de medições diárias referentes à produção de biogás). A produção de biogás dos dois tratamentos (inóculo e substrato) foi avaliada durante 91 dias e entre os tratamentos mediante uma análise de variância (ANOVA). Os tratamentos foram aninhados dentro do tempo, constituindo uma ANOVA com delineamento hierarquizado, com 5% de significância. Os resultados mostraram que a geração de biogás estava mais relacionada com o pH, seguido dos STV, umidade e DQO. A soma da ACP 1 e 2 explicou 98% dos dados de produção de biogás. ; Abstract: This study aimed to evaluate the correlation structure of the biogas volume generated with the physical and chemical variables moisture, pH, alkalinity, chemical oxygen demand (COD) and total volatile solids (STV), through a principal component analysis (PCA). The replicates of each treatment, for both the inoculum and for the substrate were subjected to Pearson correlation analysis to determine if they could be treated as replicas. To this end, we used 92 sampling units (number of daily measurements on the production of biogas). The biogas production of the two treatments (inoculum and substrate) was evaluated for 91 days and between treatments using an analysis of variance (ANOVA). The treatments were nested within time, constituting an ANOVA with hierarchical design, with 5% significance. The results showed that the generation of biogas was more related to the pH, followed by STV, moisture and COD. The sum of the ACP 1 and 2 explained 98% of the biogas production data.
Université de Sherbr... arrow_drop_down Université de Sherbrooke: Savoirs UdeSArticle . 2016License: CC BY NC NDData sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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more_vert Université de Sherbr... arrow_drop_down Université de Sherbrooke: Savoirs UdeSArticle . 2016License: CC BY NC NDData sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=11143/17143&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2016 CanadaAuthors: Cabral, Alexandre; Capanema, Marlon André;handle: 11143/17142
Resumo: O presente estudo avaliou a influência de parâmetros físico-químicos na previsão de geração de biogás a partir da co-digestão da fração orgânica de resíduos sólidos urbanos (FORSU) inoculados com dejeto suíno nas proporções 1 gsv resíduo:1 gsv inóculo e 3gsv resíduo:1 gsv inóculo. Todos os tratamentos foram conduzidos em modo batelada e temperatura constante (32ºC) por 50 dias. Os parâmetros monitorados foram umidade, sólidos totais voláteis (STV) e pH e permitiram avaliar a influência de cada um no processo e sua ação conjunta na condução da biodigestão e consequente geração de biogás. A análise dos parâmetros fisicoquímicos indicou condições favoráveis ao processo de biodigestão. ; Abstract: The present work focused on evaluating the influence of physical-chemical parameters in the forecast of biogas generation from codigestion of the organic fraction of municipal solid waste (OFMSW) codigested with swine manure at 1 gvs waste:1 gvs inoculum and 3gvs waste:1 gvs inoculum ratios. All treatments evaluated were carried out in batch mode and constant temperature (32ºC) for 50 days. Moisture content, volatile solids and pH parameters have been evaluated and allowed to determinate the influence of each one in the process of biodigestion and its influence in biogas generation. The physical-chemical analysis pointed out suitable conditions to biodigestion process. Keywords: Animal manure. Biogas. Codigestion.
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more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2011Publisher:Universidade de Santa Cruz do Sul Authors: Marcus Vinicius Alves Finco; Werner Doppler;Biofuel production has been greatly discussed in Brazil. In 2004, these debates led the country to develop new policies and implement a national program for biodiesel use and production (PNPB) with the intent to increase the share of renewable energy and foster regional development. In this context, the present study aims to assess the impacts of PNPB on regional development in Tocantins State, northern Brazil. For this purpose, ranges of socio-economic indicators were collected among national and regional stakeholders, as well as specific literature. The preliminary results point out that distribution logistics appears to be a considerable constraint to the success of the PNPB. The concentration of biodiesel industries in the central-west region of the country, and the large distances to deliver biodiesel in the northern Brazil make biodiesel prices non-competitive when compared to fossil diesel. The results also suggest that the PNPB is not succeeding in promoting the integration of family agriculture in the Tocantins state, especially due to the structural difficulty of the agricultural sector, as well as the technical and political shortcomings presented by the mechanism of incentives.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euapps Other research product GermanyPublisher:Saarländische Universitäts- und Landesbibliothek Authors: Atik, Mohamed; De Lima Neto, Pedro; Avaca, Luis A.; Aegerter, Michel A.;Al2O3-SiO2 sol-gel coatings of different compositions have been deposited on 316L stainless steel by dip-coating from a sonocatalyzed sol made by the mixture of Al(OC4H9)3 e Si(OC2H5)4 as precursors and ethanol and acetic acid as solvents. The coatings were densified at 600, 800 and 1000°C and characterized by X-rays diffraction. The influence of the coatings on the corrosion behavior of the substrate was tested in 3% NaCl by potentiodynamic polarization curves at 1 mV s(-1). The electrochemical results showed that the films densified at 800 and 1000°C have a better electrochemical behavior than the films densified at 600°C. An increase in the aluminium content improves the behavior of the coatings. -
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2016 United KingdomAuthors: Villela, Malu; Gomes, Marcus;The institutional framework of contemporary society has changed since the boundary between public and private spheres became increasingly fluid, with the State no longer the only actor to regulate the behaviour of social actors, nor indeed, the only actor to problematize what is public. Other actors have also begun to develop their own initiatives in relation to public matters, and this also applies to the environmental agenda. In this context, this article aims to develop an approach to public sector initiatives aimed at the environment by examining the experiences of the Public Management and Citizenship program database and the recent activities of the Friends of the Amazon Network. The conclusion is that such an approach should consider at least three elements: Transversality - environmental impacts involve different areas of knowledge and governmental action; No Neutrality - understanding environmental impacts involves negotiation in the public arena; Governance - environmental issues require coordination and relationships between different actors.
University of Bristo... arrow_drop_down University of Bristol: Bristol ResearchArticle . 2016Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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more_vert University of Bristo... arrow_drop_down University of Bristol: Bristol ResearchArticle . 2016Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2013 United KingdomPublisher:University of Sao Paulo Authors: dos Santos, Juliane Barbosa; Jabbour, Charbel Jose Chiappetta;handle: 1893/25889
The sun has an extremely important role in the existence of human beings, and Brazil has a privileged geographical position to explore sunlight. The union of these two factors favors the use of solar cells for converting solar energy into electricity by photovoltaic technology: it is a great alternative energy source, especially for being a clean one, causing less damage to the environment. This paper addresses the photovoltaic technology with a focus on hospitals, through case studies found in international literature, because hospitals, even running all important services to society, have a potential for pollution capable of causing damage to human health and the environment that is around them. It is estimated that the Brazilian oil reserves are sufficient for twenty-two years. This makes the search for alternative sources for power generation a necessity.
University of Stirli... arrow_drop_down University of Stirling: Stirling Digital Research RepositoryArticle . 2013License: CC BY NCFull-Text: http://hdl.handle.net/1893/25889Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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more_vert University of Stirli... arrow_drop_down University of Stirling: Stirling Digital Research RepositoryArticle . 2013License: CC BY NCFull-Text: http://hdl.handle.net/1893/25889Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=1893/25889&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2016 CanadaAuthors: Cabral, Alexandre; Capanema, Marlon André;handle: 11143/17141
Resumo: Este trabalho teve por objetivo avaliar a influência da utilização de diferentes inóculos de dejeto suíno em diferentes proporções na determinação do potencial de geração de biogás a partir da fração orgânica de resíduos sólidos urbanos (RSU). Utilizou-se dejeto suíno como inóculo do RSU nas proporções 1 gsv resíduo:1 gsv inóculo e 3gsv resíduo:1 gsv inóculo. Todos os biodigestores foram incubados à temperatura constante (32ºC) por 50 dias. Observou-se que a geração média de biogás (volume gerado) foi altamente dependente da proporção resíduo:inóculo utilizada. A eficiência da mistura resíduo:inóculo na proporção 3:1 foi superior à proporção 1:1 em termos de volume de biogás gerado. ; Abstract: The present work focused on evaluating the influence in using swine manure inoculum in different proportions in order to determinate the biogas generation from organic fraction of municipal solid waste (MSW). We employed swine manure as inoculum of the MSW at 1 gvswaste:1gvsinoculum and 3 gvswaste:1gvsinoculum ratios. All biodigestors were incubated at constant temperature (32ºC) for 50 days. We could observe that the biogas generation (in volume) was highly dependent of the waste:inoculum ratio used. The efficiency of the blend 3:1 was upper compared to 1:1, taking into account the volume of biogas.
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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description Publicationkeyboard_double_arrow_right Article 2009 United KingdomPublisher:Universidade Federal de São Carlos Authors: Jabbour, Charbel Jose Chiappetta; Santos, Fernando Cesar Almada;handle: 1893/24746
O objetivo deste artigo é lançar luzes sobre as implicações da mudança climática para as organizações. Para fazer frente a esse debate, são explorados: o conceito de "inteligência ambiental" (IA); as estratégias por meio das quais as organizações fazem frente ao desafio da mudança climática; as oportunidades que explicam a adoção dessas estratégias; e o papel fornecido pela função produção para que tais estratégias possuam o efeito desejado. Por fim, tais conceitos são sistematizados, buscando-se uma integração dos modelos teóricos existentes, até então considerados de maneira estanque.The aim of this paper is to enlighten the implications of climate change for organizations. To deal with this subject, the follow issues are analyzed: concept of environmental intelligence; opportunities which justify the adoption of these strategies, and the main role performed by the production function to implement such strategies. Finally, concepts of prior theoretical models are taken into account.
University of Stirli... arrow_drop_down University of Stirling: Stirling Digital Research RepositoryArticle . 2009License: CC BY NCFull-Text: http://hdl.handle.net/1893/24746Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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more_vert University of Stirli... arrow_drop_down University of Stirling: Stirling Digital Research RepositoryArticle . 2009License: CC BY NCFull-Text: http://hdl.handle.net/1893/24746Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=1893/24746&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2006 Brazil, CanadaPublisher:Universidade Federal de Santa Maria Authors: Vale, Ailton Teixera do; Sablowski, Alexander Rudolph Marin;handle: 1807/44889
RESUMO Neste trabalho, é feita a análise da eficiência de produção de uma serraria de pequeno porte, localizada no estado de São Paulo, utilizando como ferramentas a “análise de fluxo de massa” e “análise de fluxo de energia”. O objetivo foi avaliar a linha de produção e comparar as ferramentas utilizadas em função dos resultados obtidos e aplicabilidade. Concluiu-se que o “lay out” de disposição dos maquinários deve ser alterado e deve-se utilizar um melhor planejamento do gabarito de corte para que o sistema se torne viável em função da baixa eficiência com grande porcentagem de perda e uso inadequado dos equipamentos e matéria-prima. As ferramentas forneceram resultados similares e por causa da aplicabilidade, propõe-se a utilização da “análise de fluxo de massa” para avaliação de comportamento produtivo de serrarias. ; ABSTRACT This is the analysis of the efficiency of production of one small sawmill, located in São Paulo, using as an instrument of study the “Mass and Energy Flow”, available in the production line. It was concluded that the disposal of the machines should be modified, and that the inclusion of a process of planning of cut design is necessary so that the system becomes viable, since the current configuration presents low income with great percentage of loss and inadequate use of equipment and raw material. Concerning the tools, similar results were found and because of its ease of utilization the “mass and flow” is recommended to the sawmill pattern evaluation.
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more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=1807/44889&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2018 CanadaAuthors: Cabral, Alexandre;handle: 11143/17137
Resumo: O aproveitamento energético do biogás de aterros sanitários é uma alternativa sustentável para a disposição final de gases residuais. A estimativa teórica da produção desse biogás torna-se uma ferramenta muito útil para a avaliação de viabilidade e dimensionamento de sistemas de coleta de gás. Os modelos de geração de biogás de aterro mais utilizados atualmente são os baseados em equações de decaimento de primeira ordem. Os modelos LandGEM e IPCC foram utilizados neste trabalho para a estimativa da geração de gases no aterro municipal de Guarapuava (PR, Brasil), onde os principais parâmetros foram escolhidos com base nos dados frequentemente aplicados para cada modelo: valores default sugeridos para as condições locais específicas, para a aplicação do software LandGEM; e cálculo do potencial de geração de metano (L0) a partir da análise gravimétrica dos resíduos, para a aplicação da equação sugerida pelo IPCC. Estimou-se uma produção total de biogás de 44.466.711 Nm3.ano-1 aplicando LandGEM e 60.080.906 Nm3.ano-1 aplicando IPCC, onde os picos de produção foram observados nos anos de 2021 e 2020, respectivamente. A escolha do modelo mais adequado dependerá dos dados disponíveis e, para maior aproximação de resultados reais, os parâmetros adotados devem ser analisados com cautela, considerando as diferentes condições climáticas e operacionais de cada caso. ; Abstract: The energetic use of landfill biogas is a sustainable alternative for the final disposal of waste gases. The theoretical estimation of the production of this biogas becomes a very useful tool for evaluating the feasibility and design of gas collection systems sizing. The most widely used landfill biogas generation models are those based on first-order-decay equations. LandGEM and IPCC models were used in this work to estimate the generation of gases in the municipal landfill of Guarapuava (PR), and the main parameters were chosen based on the frequently applied data for each model: default values suggested for the specific local conditions,for the application of LandGEM software; and calculating the methane generation potential (L0) from the gravimetric analysis of the residues, for the application of the equation suggested by the IPCC. A total biogas production of 44,466,711 Nm³.ano-1 was estimated by applying LandGEM and 60,080,906 Nm³.ano-1 using IPCC, whose production peaks were observed in the years 2021 and 2020, respectively. The choice of the most appropriate model will depend on the available data and, for better approximation to real results, the parameters adopted should be analyzed with caution, considering the difference in climatic and operational conditions of each case.
Université de Sherbr... arrow_drop_down Université de Sherbrooke: Savoirs UdeSArticle . 2018License: CC BY NC NDFull-Text: http://dx.doi.org/10.5380/biofix.v3i1.56038Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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more_vert Université de Sherbr... arrow_drop_down Université de Sherbrooke: Savoirs UdeSArticle . 2018License: CC BY NC NDFull-Text: http://dx.doi.org/10.5380/biofix.v3i1.56038Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=11143/17137&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2016 CanadaAuthors: Cabral, Alexandre; Capanema, Marlon André;handle: 11143/17143
Resumo: O presente estudo teve como objetivo avaliar a estrutura de correlação do volume de biogás gerado com as variáveis físico-químicas umidade, pH, alcalinidade, demanda química de oxigênio (DQO) e sólidos totais voláteis (STV), mediante uma análise de componentes principais (ACP). As repetições de cada tratamento, tanto para o inóculo quanto para o substrato, foram submetidas à análise de correlação de Pearson para se determinar se poderiam ser tratadas como réplicas. Para tanto, foram utilizadas 92 unidades amostrais (número de medições diárias referentes à produção de biogás). A produção de biogás dos dois tratamentos (inóculo e substrato) foi avaliada durante 91 dias e entre os tratamentos mediante uma análise de variância (ANOVA). Os tratamentos foram aninhados dentro do tempo, constituindo uma ANOVA com delineamento hierarquizado, com 5% de significância. Os resultados mostraram que a geração de biogás estava mais relacionada com o pH, seguido dos STV, umidade e DQO. A soma da ACP 1 e 2 explicou 98% dos dados de produção de biogás. ; Abstract: This study aimed to evaluate the correlation structure of the biogas volume generated with the physical and chemical variables moisture, pH, alkalinity, chemical oxygen demand (COD) and total volatile solids (STV), through a principal component analysis (PCA). The replicates of each treatment, for both the inoculum and for the substrate were subjected to Pearson correlation analysis to determine if they could be treated as replicas. To this end, we used 92 sampling units (number of daily measurements on the production of biogas). The biogas production of the two treatments (inoculum and substrate) was evaluated for 91 days and between treatments using an analysis of variance (ANOVA). The treatments were nested within time, constituting an ANOVA with hierarchical design, with 5% significance. The results showed that the generation of biogas was more related to the pH, followed by STV, moisture and COD. The sum of the ACP 1 and 2 explained 98% of the biogas production data.
Université de Sherbr... arrow_drop_down Université de Sherbrooke: Savoirs UdeSArticle . 2016License: CC BY NC NDData sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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more_vert Université de Sherbr... arrow_drop_down Université de Sherbrooke: Savoirs UdeSArticle . 2016License: CC BY NC NDData sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=11143/17143&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2016 CanadaAuthors: Cabral, Alexandre; Capanema, Marlon André;handle: 11143/17142
Resumo: O presente estudo avaliou a influência de parâmetros físico-químicos na previsão de geração de biogás a partir da co-digestão da fração orgânica de resíduos sólidos urbanos (FORSU) inoculados com dejeto suíno nas proporções 1 gsv resíduo:1 gsv inóculo e 3gsv resíduo:1 gsv inóculo. Todos os tratamentos foram conduzidos em modo batelada e temperatura constante (32ºC) por 50 dias. Os parâmetros monitorados foram umidade, sólidos totais voláteis (STV) e pH e permitiram avaliar a influência de cada um no processo e sua ação conjunta na condução da biodigestão e consequente geração de biogás. A análise dos parâmetros fisicoquímicos indicou condições favoráveis ao processo de biodigestão. ; Abstract: The present work focused on evaluating the influence of physical-chemical parameters in the forecast of biogas generation from codigestion of the organic fraction of municipal solid waste (OFMSW) codigested with swine manure at 1 gvs waste:1 gvs inoculum and 3gvs waste:1 gvs inoculum ratios. All treatments evaluated were carried out in batch mode and constant temperature (32ºC) for 50 days. Moisture content, volatile solids and pH parameters have been evaluated and allowed to determinate the influence of each one in the process of biodigestion and its influence in biogas generation. The physical-chemical analysis pointed out suitable conditions to biodigestion process. Keywords: Animal manure. Biogas. Codigestion.
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more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Journal 2011Publisher:Universidade de Santa Cruz do Sul Authors: Marcus Vinicius Alves Finco; Werner Doppler;Biofuel production has been greatly discussed in Brazil. In 2004, these debates led the country to develop new policies and implement a national program for biodiesel use and production (PNPB) with the intent to increase the share of renewable energy and foster regional development. In this context, the present study aims to assess the impacts of PNPB on regional development in Tocantins State, northern Brazil. For this purpose, ranges of socio-economic indicators were collected among national and regional stakeholders, as well as specific literature. The preliminary results point out that distribution logistics appears to be a considerable constraint to the success of the PNPB. The concentration of biodiesel industries in the central-west region of the country, and the large distances to deliver biodiesel in the northern Brazil make biodiesel prices non-competitive when compared to fossil diesel. The results also suggest that the PNPB is not succeeding in promoting the integration of family agriculture in the Tocantins state, especially due to the structural difficulty of the agricultural sector, as well as the technical and political shortcomings presented by the mechanism of incentives.
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
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For further information contact us at helpdesk@openaire.euapps Other research product GermanyPublisher:Saarländische Universitäts- und Landesbibliothek Authors: Atik, Mohamed; De Lima Neto, Pedro; Avaca, Luis A.; Aegerter, Michel A.;Al2O3-SiO2 sol-gel coatings of different compositions have been deposited on 316L stainless steel by dip-coating from a sonocatalyzed sol made by the mixture of Al(OC4H9)3 e Si(OC2H5)4 as precursors and ethanol and acetic acid as solvents. The coatings were densified at 600, 800 and 1000°C and characterized by X-rays diffraction. The influence of the coatings on the corrosion behavior of the substrate was tested in 3% NaCl by potentiodynamic polarization curves at 1 mV s(-1). The electrochemical results showed that the films densified at 800 and 1000°C have a better electrochemical behavior than the films densified at 600°C. An increase in the aluminium content improves the behavior of the coatings. -
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2016 United KingdomAuthors: Villela, Malu; Gomes, Marcus;The institutional framework of contemporary society has changed since the boundary between public and private spheres became increasingly fluid, with the State no longer the only actor to regulate the behaviour of social actors, nor indeed, the only actor to problematize what is public. Other actors have also begun to develop their own initiatives in relation to public matters, and this also applies to the environmental agenda. In this context, this article aims to develop an approach to public sector initiatives aimed at the environment by examining the experiences of the Public Management and Citizenship program database and the recent activities of the Friends of the Amazon Network. The conclusion is that such an approach should consider at least three elements: Transversality - environmental impacts involve different areas of knowledge and governmental action; No Neutrality - understanding environmental impacts involves negotiation in the public arena; Governance - environmental issues require coordination and relationships between different actors.
University of Bristo... arrow_drop_down University of Bristol: Bristol ResearchArticle . 2016Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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more_vert University of Bristo... arrow_drop_down University of Bristol: Bristol ResearchArticle . 2016Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2013 United KingdomPublisher:University of Sao Paulo Authors: dos Santos, Juliane Barbosa; Jabbour, Charbel Jose Chiappetta;handle: 1893/25889
The sun has an extremely important role in the existence of human beings, and Brazil has a privileged geographical position to explore sunlight. The union of these two factors favors the use of solar cells for converting solar energy into electricity by photovoltaic technology: it is a great alternative energy source, especially for being a clean one, causing less damage to the environment. This paper addresses the photovoltaic technology with a focus on hospitals, through case studies found in international literature, because hospitals, even running all important services to society, have a potential for pollution capable of causing damage to human health and the environment that is around them. It is estimated that the Brazilian oil reserves are sufficient for twenty-two years. This makes the search for alternative sources for power generation a necessity.
University of Stirli... arrow_drop_down University of Stirling: Stirling Digital Research RepositoryArticle . 2013License: CC BY NCFull-Text: http://hdl.handle.net/1893/25889Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=1893/25889&type=result"></script>'); --> </script>
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more_vert University of Stirli... arrow_drop_down University of Stirling: Stirling Digital Research RepositoryArticle . 2013License: CC BY NCFull-Text: http://hdl.handle.net/1893/25889Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=1893/25889&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article 2016 CanadaAuthors: Cabral, Alexandre; Capanema, Marlon André;handle: 11143/17141
Resumo: Este trabalho teve por objetivo avaliar a influência da utilização de diferentes inóculos de dejeto suíno em diferentes proporções na determinação do potencial de geração de biogás a partir da fração orgânica de resíduos sólidos urbanos (RSU). Utilizou-se dejeto suíno como inóculo do RSU nas proporções 1 gsv resíduo:1 gsv inóculo e 3gsv resíduo:1 gsv inóculo. Todos os biodigestores foram incubados à temperatura constante (32ºC) por 50 dias. Observou-se que a geração média de biogás (volume gerado) foi altamente dependente da proporção resíduo:inóculo utilizada. A eficiência da mistura resíduo:inóculo na proporção 3:1 foi superior à proporção 1:1 em termos de volume de biogás gerado. ; Abstract: The present work focused on evaluating the influence in using swine manure inoculum in different proportions in order to determinate the biogas generation from organic fraction of municipal solid waste (MSW). We employed swine manure as inoculum of the MSW at 1 gvswaste:1gvsinoculum and 3 gvswaste:1gvsinoculum ratios. All biodigestors were incubated at constant temperature (32ºC) for 50 days. We could observe that the biogas generation (in volume) was highly dependent of the waste:inoculum ratio used. The efficiency of the blend 3:1 was upper compared to 1:1, taking into account the volume of biogas.
add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=11143/17141&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu0 citations 0 popularity Average influence Average impulse Average Powered by BIP!
more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=11143/17141&type=result"></script>'); --> </script>
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