Marcius Carvalho | PUC-Campinas - Academia.edu (original) (raw)

Papers by Marcius Carvalho

Research paper thumbnail of Changes in tourism business networks from the perspective of the social theory: the Paranapiacaba Village case study - SP

El trabajo analiza las transformaciones de las redes en las dimensiones económicas, técnicas y so... more El trabajo analiza las transformaciones de las redes en las dimensiones económicas, técnicas y sociales ejemplificadas en el negocio de turismo, y defiende la tesis de que la forma y el contenido de las relaciones cambian según los objetivos económicos y políticos. Se afirma que las redes se transforman a lo largo del tiempo y surgen en las relaciones, diferentesestructuras y formas con diversos grados de flexibilidad, innovación y valores culturales, en contraposición a la visión del ciclo de vida. Para respaldar la afirmación, se analiza la evolución del campo organizacional de la Vila de Paranapiacaba, en el Estado de São Paulo, desde su creación hasta la situación actual, con datos documentales, bibliográficos y observación; se concluye que el local tuvo cuatro diferentes configuraciones de redes. Actualmente predominan las actividades de turismo, que regulan las relaciones sociales y de negocios. El análisis de los datos históricos, basado en cuatro factores estructurantesactor...

Research paper thumbnail of An Efficient Hydrothermal Scheduling Algorithm

IEEE Transactions on Power Systems, 1987

86 SM 316-4 A paper recommended and approved by the IEEE Power System Engineering Committee of th... more 86 SM 316-4 A paper recommended and approved by the IEEE Power System Engineering Committee of the IEEE Power Enngineering Society for presentation at the IEEE/PES 1986 Summer Meeting, Mexico City, Mexico, July 20 - 25, 1986. Manuscript submitted September 3, ...

Research paper thumbnail of Analysis of supply chain management policies through simulation models

Gestão & Produção, 2004

... Estadual de Campinas, Rua Mendeleiev, s/n, Cidade Universitária, Campinas, SP, e-mail: cmacha... more ... Estadual de Campinas, Rua Mendeleiev, s/n, Cidade Universitária, Campinas, SP, e-mail: cmachado_br@yahoo.com II Centro de Pesquisas Renato Archer, CenPRA, CP ... Contudo, a maioria se completa, se cancela ou pode ser acomodada na variável de folga do sistema. ...

Research paper thumbnail of Aplicacao_PROMETHEE_II_PO2-PD4.vpg

Research paper thumbnail of Monitoring Karting Pilot’s Moodflow: a First Experience

2021 20th IEEE International Conference on Machine Learning and Applications (ICMLA)

Research paper thumbnail of Aplicacao_PROMETHEE_II_PO1-PD1.vpg

Research paper thumbnail of Aplicacao_PROMETHEE_II_PO2-PD2.vpg

Research paper thumbnail of Aplicacao_PROMETHEE_II_PO2-PD1_Original.vpg

Research paper thumbnail of Mobilidade em centros urbanos por circuitos de caminhada utilizando o método multicritério PROMETHEE, estudo de caso de Campinas

urbe. Revista Brasileira de Gestão Urbana

Resumo Este trabalho toma a caminhada como forma de mobilidade em um centro urbano e desenvolve u... more Resumo Este trabalho toma a caminhada como forma de mobilidade em um centro urbano e desenvolve uma metodologia para a determinação de rotas mais acessíveis aos pedestres que chegando aos terminais rodoviários urbanos desejem atingir pontos de interesse. Pretende-se com esta proposição oferecer melhores trajetos, para uma classe social vinda de bairros periféricos, de aceso a serviços essenciais. A proposta foi aplicada à região central de Campinas-SP, caracterizada por atividades comerciais e de prestação de serviços, atendida por dois importantes terminais públicos urbanos. Na determinação da melhor rota para caminhada foram utilizados três macros indicadores: Indicador de ambiente, representando características físicas do ambiente da caminhada; Indicador conforto, representado pela atratividade visual e conforto local; e Indicador segurança, representando a segurança pública e pessoal. A partir do método multicritério PROMETHEE, foram definidas as melhores rotas que conectam pont...

Research paper thumbnail of Multi-criteria Analysis of Brazilian Wind Farms

Research with renewable energy sources, especially wind and solar energy, has been increasingly g... more Research with renewable energy sources, especially wind and solar energy, has been increasingly gaining the attention of researchers, development agencies and companies as a complement to traditional energy sources with finite reserves or hydropower. Although renewable sources rely on random climate conditions, their performance has rarely been evaluated adequately. Therefore, evaluating the performance of these renewable sources is essential to identify generation potentials and establish benchmarks in this sector. In this study, the aim is to evaluate the performance of Brazilian wind farms using a multi-criteria approach. In order to achieve this objective financial, technical, and operational performance criteria were evaluated, divided into nine sub-criteria, based on data survey among twenty plant managers. The modelling combined different renewable technology approaches to represent the entire system. Three methods were combined and compared: Analytic Hierarchy Process (AHP),...

Research paper thumbnail of Development of a Surface Temperature Sensor to Enhance Energy Efficiency Actions in Buildings

Sensors

The air temperature increase in urban centers can lead to problems such as increased energy consu... more The air temperature increase in urban centers can lead to problems such as increased energy consumption associated to air conditioning, the intensification of pollution, human discomfort and health problems. In this context, the building envelope plays an important role in urban thermal equilibrium. Energy efficiency rating systems for buildings (LEED—Leadership in Energy and Environmental Design, AQUA—High Environmental Quality, PROCEL Edifica, etc.) stimulate energy efficiency actions in the built environment, considering, for example, the envelope and energy efficiency initiatives in buildings. Research carried out recently has shown that monitoring of buildings can provide important information about building performance, supporting building control strategies and enabling actions aimed at improving energy efficiency and thermal comfort. More specifically, wireless sensors are also being used to monitor buildings. This work proposes and presents the development of a surface temp...

Research paper thumbnail of A dinâmica da rede sob a perspectiva social: O caso da Vila de Paranapiacaba

PASOS. Revista de Turismo y Patrimonio Cultural

Research paper thumbnail of Comparison of some algorithms for manufacturing production planning

IFAC Proceedings Volumes

Abstract The production planning of a multiproduct multiperiod multistage manufacturing system wi... more Abstract The production planning of a multiproduct multiperiod multistage manufacturing system with deterministic demand is modelled as a network flow optimisation problem with side constraints. The optimisation algorithm determines the optimum production and storage level, the demand supply level, backorder, and raw material allocation during the planning horizon. The performance of some optimisation algorithms ( Simplex, Dantzig-Wolfe and Interior Point Methods) in a serial and parallel environment using Parallel Optimisation Subroutine Library -OSLp are compared for different production scenarios (products and periods).

Research paper thumbnail of Supply Chains Planning Requirements

IFAC Proceedings Volumes

Abstract This paper discusses various aspects concerning to production planning of supply chains.... more Abstract This paper discusses various aspects concerning to production planning of supply chains. Topics in enterprise integration and production processes coordination are considered. A structure for cooperation which takes into account the hierarchy of the decision making process is presented. The technological requirements for support of this structure are also discussed.

Research paper thumbnail of O planejamento da manufatura: práticas industriais e métodos de otimização

Gestão & Produção, 1998

Este trabalho apresenta uma revisão das metodologias mais utilizadas como ferramentas de apoio ao... more Este trabalho apresenta uma revisão das metodologias mais utilizadas como ferramentas de apoio ao planejamento da produção de sistemas de manufatura. Dentre elas destacam-se as práticas industriais conhecidas como técnicas avaliativas de soluções e os métodos de otimização conhecidos como técnicas gerativas de solução. Procura-se discutir como estas técnicas trabalham e analisar as vantagens e desvantagens de cada uma delas. Na conclusão a otimização é apresentada como uma ferramenta complementar para superar certas deficiências encontradas durante a aplicação das práticas industriais, tornando-se assim essencial ao planejamento da produção.

Research paper thumbnail of Efficiency and Effectiveness Analysis of Public Transport of Brazilian Cities

Journal of Transport Literature, 2015

The public sector is responsible for the implementation of transport public policies that maximiz... more The public sector is responsible for the implementation of transport public policies that maximize the competitiveness of urban space and minimize the negative effects of its growth. For that, the proposal of actions must be guided by good performance indices. Taking the Competitiveness Indicators of Campinas (ICC) as a reference, this paper introduces three main contributions: improve the ICC public transport performance indicator; evaluate the performance of Brazilian municipalities over six years and analyses the efficiency vs. effectiveness strategy for each city. The Data Envelopment Analysis (DEA) results show the conflict among different municipalities strategies, while Curitiba and Betim emphasize the effectiveness of the service delivered São Bernardo e Salvador strategy is centered on efficiency.

Research paper thumbnail of A-SIM: uma ferramenta de simulação A-SIM: a simulation tool

Research paper thumbnail of Interior point methods applied to multiflow problems with additional constraints

Research paper thumbnail of Manufacturing production planning by network flow

Gestão & Produção

Este artigo apresenta o planejamento da manufatura no nível tático como um problema de fluxo em r... more Este artigo apresenta o planejamento da manufatura no nível tático como um problema de fluxo em redes com restrições adicionais. Mostra que, por esta formulação, o modelo matemático possui uma estrutura muito esparsa e particular. O aproveitamento desta característica encoraja o desenvolvimento de algoritmos especiais dedicados a problemas de grande dimensão, como é o caso dos sistemas de manufatura multiprodutos, multiestágios, multiperíodos e, como conseqüência, permite uma representação mais detalhada do sistema físico. Uma comparação mostra o melhor desempenho destes algoritmos em relação a outros de caráter geral.

Research paper thumbnail of Optimal aggregate production planning with minimum inventory limit affected by demand uncertainties

Gestão & Produção

This paper deals with the determination of an optimal decision policy for a production planning p... more This paper deals with the determination of an optimal decision policy for a production planning problem with inventory and production constraints. The planning time horizon is finite, from 1 to 2 years approximately at monthly periods, which means that all data involved with the problem are totally aggregated and the fluctuating demand for each one period is stochastic, with probability distribution function assumed as gaussian. Thus the problem studied here is a stochastic planning one with probabilistic constraint at the inventory level variable. It is shown that it is possible to obtain, by means of appropriate transformations, a deterministic equivalent formulation, for which an open-loop solution to stochastic problems can be generated, using any applicable mathematical programming algorithm. It is also shown that the uncertainties concerning demand fluctuation are explicitly presented in the deterministic formulation through a constraint function that represents the minimum in...

Research paper thumbnail of Changes in tourism business networks from the perspective of the social theory: the Paranapiacaba Village case study - SP

El trabajo analiza las transformaciones de las redes en las dimensiones económicas, técnicas y so... more El trabajo analiza las transformaciones de las redes en las dimensiones económicas, técnicas y sociales ejemplificadas en el negocio de turismo, y defiende la tesis de que la forma y el contenido de las relaciones cambian según los objetivos económicos y políticos. Se afirma que las redes se transforman a lo largo del tiempo y surgen en las relaciones, diferentesestructuras y formas con diversos grados de flexibilidad, innovación y valores culturales, en contraposición a la visión del ciclo de vida. Para respaldar la afirmación, se analiza la evolución del campo organizacional de la Vila de Paranapiacaba, en el Estado de São Paulo, desde su creación hasta la situación actual, con datos documentales, bibliográficos y observación; se concluye que el local tuvo cuatro diferentes configuraciones de redes. Actualmente predominan las actividades de turismo, que regulan las relaciones sociales y de negocios. El análisis de los datos históricos, basado en cuatro factores estructurantesactor...

Research paper thumbnail of An Efficient Hydrothermal Scheduling Algorithm

IEEE Transactions on Power Systems, 1987

86 SM 316-4 A paper recommended and approved by the IEEE Power System Engineering Committee of th... more 86 SM 316-4 A paper recommended and approved by the IEEE Power System Engineering Committee of the IEEE Power Enngineering Society for presentation at the IEEE/PES 1986 Summer Meeting, Mexico City, Mexico, July 20 - 25, 1986. Manuscript submitted September 3, ...

Research paper thumbnail of Analysis of supply chain management policies through simulation models

Gestão & Produção, 2004

... Estadual de Campinas, Rua Mendeleiev, s/n, Cidade Universitária, Campinas, SP, e-mail: cmacha... more ... Estadual de Campinas, Rua Mendeleiev, s/n, Cidade Universitária, Campinas, SP, e-mail: cmachado_br@yahoo.com II Centro de Pesquisas Renato Archer, CenPRA, CP ... Contudo, a maioria se completa, se cancela ou pode ser acomodada na variável de folga do sistema. ...

Research paper thumbnail of Aplicacao_PROMETHEE_II_PO2-PD4.vpg

Research paper thumbnail of Monitoring Karting Pilot’s Moodflow: a First Experience

2021 20th IEEE International Conference on Machine Learning and Applications (ICMLA)

Research paper thumbnail of Aplicacao_PROMETHEE_II_PO1-PD1.vpg

Research paper thumbnail of Aplicacao_PROMETHEE_II_PO2-PD2.vpg

Research paper thumbnail of Aplicacao_PROMETHEE_II_PO2-PD1_Original.vpg

Research paper thumbnail of Mobilidade em centros urbanos por circuitos de caminhada utilizando o método multicritério PROMETHEE, estudo de caso de Campinas

urbe. Revista Brasileira de Gestão Urbana

Resumo Este trabalho toma a caminhada como forma de mobilidade em um centro urbano e desenvolve u... more Resumo Este trabalho toma a caminhada como forma de mobilidade em um centro urbano e desenvolve uma metodologia para a determinação de rotas mais acessíveis aos pedestres que chegando aos terminais rodoviários urbanos desejem atingir pontos de interesse. Pretende-se com esta proposição oferecer melhores trajetos, para uma classe social vinda de bairros periféricos, de aceso a serviços essenciais. A proposta foi aplicada à região central de Campinas-SP, caracterizada por atividades comerciais e de prestação de serviços, atendida por dois importantes terminais públicos urbanos. Na determinação da melhor rota para caminhada foram utilizados três macros indicadores: Indicador de ambiente, representando características físicas do ambiente da caminhada; Indicador conforto, representado pela atratividade visual e conforto local; e Indicador segurança, representando a segurança pública e pessoal. A partir do método multicritério PROMETHEE, foram definidas as melhores rotas que conectam pont...

Research paper thumbnail of Multi-criteria Analysis of Brazilian Wind Farms

Research with renewable energy sources, especially wind and solar energy, has been increasingly g... more Research with renewable energy sources, especially wind and solar energy, has been increasingly gaining the attention of researchers, development agencies and companies as a complement to traditional energy sources with finite reserves or hydropower. Although renewable sources rely on random climate conditions, their performance has rarely been evaluated adequately. Therefore, evaluating the performance of these renewable sources is essential to identify generation potentials and establish benchmarks in this sector. In this study, the aim is to evaluate the performance of Brazilian wind farms using a multi-criteria approach. In order to achieve this objective financial, technical, and operational performance criteria were evaluated, divided into nine sub-criteria, based on data survey among twenty plant managers. The modelling combined different renewable technology approaches to represent the entire system. Three methods were combined and compared: Analytic Hierarchy Process (AHP),...

Research paper thumbnail of Development of a Surface Temperature Sensor to Enhance Energy Efficiency Actions in Buildings

Sensors

The air temperature increase in urban centers can lead to problems such as increased energy consu... more The air temperature increase in urban centers can lead to problems such as increased energy consumption associated to air conditioning, the intensification of pollution, human discomfort and health problems. In this context, the building envelope plays an important role in urban thermal equilibrium. Energy efficiency rating systems for buildings (LEED—Leadership in Energy and Environmental Design, AQUA—High Environmental Quality, PROCEL Edifica, etc.) stimulate energy efficiency actions in the built environment, considering, for example, the envelope and energy efficiency initiatives in buildings. Research carried out recently has shown that monitoring of buildings can provide important information about building performance, supporting building control strategies and enabling actions aimed at improving energy efficiency and thermal comfort. More specifically, wireless sensors are also being used to monitor buildings. This work proposes and presents the development of a surface temp...

Research paper thumbnail of A dinâmica da rede sob a perspectiva social: O caso da Vila de Paranapiacaba

PASOS. Revista de Turismo y Patrimonio Cultural

Research paper thumbnail of Comparison of some algorithms for manufacturing production planning

IFAC Proceedings Volumes

Abstract The production planning of a multiproduct multiperiod multistage manufacturing system wi... more Abstract The production planning of a multiproduct multiperiod multistage manufacturing system with deterministic demand is modelled as a network flow optimisation problem with side constraints. The optimisation algorithm determines the optimum production and storage level, the demand supply level, backorder, and raw material allocation during the planning horizon. The performance of some optimisation algorithms ( Simplex, Dantzig-Wolfe and Interior Point Methods) in a serial and parallel environment using Parallel Optimisation Subroutine Library -OSLp are compared for different production scenarios (products and periods).

Research paper thumbnail of Supply Chains Planning Requirements

IFAC Proceedings Volumes

Abstract This paper discusses various aspects concerning to production planning of supply chains.... more Abstract This paper discusses various aspects concerning to production planning of supply chains. Topics in enterprise integration and production processes coordination are considered. A structure for cooperation which takes into account the hierarchy of the decision making process is presented. The technological requirements for support of this structure are also discussed.

Research paper thumbnail of O planejamento da manufatura: práticas industriais e métodos de otimização

Gestão & Produção, 1998

Este trabalho apresenta uma revisão das metodologias mais utilizadas como ferramentas de apoio ao... more Este trabalho apresenta uma revisão das metodologias mais utilizadas como ferramentas de apoio ao planejamento da produção de sistemas de manufatura. Dentre elas destacam-se as práticas industriais conhecidas como técnicas avaliativas de soluções e os métodos de otimização conhecidos como técnicas gerativas de solução. Procura-se discutir como estas técnicas trabalham e analisar as vantagens e desvantagens de cada uma delas. Na conclusão a otimização é apresentada como uma ferramenta complementar para superar certas deficiências encontradas durante a aplicação das práticas industriais, tornando-se assim essencial ao planejamento da produção.

Research paper thumbnail of Efficiency and Effectiveness Analysis of Public Transport of Brazilian Cities

Journal of Transport Literature, 2015

The public sector is responsible for the implementation of transport public policies that maximiz... more The public sector is responsible for the implementation of transport public policies that maximize the competitiveness of urban space and minimize the negative effects of its growth. For that, the proposal of actions must be guided by good performance indices. Taking the Competitiveness Indicators of Campinas (ICC) as a reference, this paper introduces three main contributions: improve the ICC public transport performance indicator; evaluate the performance of Brazilian municipalities over six years and analyses the efficiency vs. effectiveness strategy for each city. The Data Envelopment Analysis (DEA) results show the conflict among different municipalities strategies, while Curitiba and Betim emphasize the effectiveness of the service delivered São Bernardo e Salvador strategy is centered on efficiency.

Research paper thumbnail of A-SIM: uma ferramenta de simulação A-SIM: a simulation tool

Research paper thumbnail of Interior point methods applied to multiflow problems with additional constraints

Research paper thumbnail of Manufacturing production planning by network flow

Gestão & Produção

Este artigo apresenta o planejamento da manufatura no nível tático como um problema de fluxo em r... more Este artigo apresenta o planejamento da manufatura no nível tático como um problema de fluxo em redes com restrições adicionais. Mostra que, por esta formulação, o modelo matemático possui uma estrutura muito esparsa e particular. O aproveitamento desta característica encoraja o desenvolvimento de algoritmos especiais dedicados a problemas de grande dimensão, como é o caso dos sistemas de manufatura multiprodutos, multiestágios, multiperíodos e, como conseqüência, permite uma representação mais detalhada do sistema físico. Uma comparação mostra o melhor desempenho destes algoritmos em relação a outros de caráter geral.

Research paper thumbnail of Optimal aggregate production planning with minimum inventory limit affected by demand uncertainties

Gestão & Produção

This paper deals with the determination of an optimal decision policy for a production planning p... more This paper deals with the determination of an optimal decision policy for a production planning problem with inventory and production constraints. The planning time horizon is finite, from 1 to 2 years approximately at monthly periods, which means that all data involved with the problem are totally aggregated and the fluctuating demand for each one period is stochastic, with probability distribution function assumed as gaussian. Thus the problem studied here is a stochastic planning one with probabilistic constraint at the inventory level variable. It is shown that it is possible to obtain, by means of appropriate transformations, a deterministic equivalent formulation, for which an open-loop solution to stochastic problems can be generated, using any applicable mathematical programming algorithm. It is also shown that the uncertainties concerning demand fluctuation are explicitly presented in the deterministic formulation through a constraint function that represents the minimum in...