Navegando por Orientadores "NEVES, Renato Martins das"

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Acesso aberto (Open Access)
Alternativas para o abastecimento energético dos fornos de indústrias cerâmicas localizadas no município de São Miguel do Guamá-PA
(Universidade Federal do Pará, 2013-08-14) ROCHA, Alexander Lobo; NEVES, Renato Martins das; http://lattes.cnpq.br/6538317425557058
Economic and environmental differentials incorporated biomass energy has driven the spread of supply and use of biofuels in developed and developing countries. In the state of Pará (Brazil), the growing demand for biomass like acai lump and legalized firewood, specially related to the performance of the ceramic industry in the São Miguel do Guamá county and other industrial segments, pints to a possible shortage of these energy resources. Thus, initiative is needed to search for alternative fuels that are capable of not only ensuring the energy supply necessary for the current and future ceramic production of these industries, but also to ensure the continuation and conservation of renewable natural resources in the region. This work consolidates research among member companies of the Association of Ceramics Industries of São Miguel do Guamá, which are located in this municipality, using as a sample the ceramic companies seeking alternative bioenergy, along with the research among the agro-industries and farmers present in other municipalities of the state of Pará. The objective is to identify alternatives for energy supply in ceramic kilns, considering the use of renewable energy sources and opportunities for reducing the cost of its acquisition through the practice of return shipping. It was used as a research strategy case study in five moments of semi-structured interviews guided by questionnaires. The results obtained indicate that there is opportunity to supply biomass matched with the needs of the surveyed ceramic companies, with the potential to meet repressed energy demands and allowing the continuation of strategic business in Pará, as at this time, the growing civil construction industry.
Acesso aberto (Open Access)
Análise da segurança e saúde do trabalho em canteiros de obras: estudo de caso em uma autarquia federal de ensino superior
(Universidade Federal do Pará, 2016-09-15) LIMA JÚNIOR, Moacir de Souza; NEVES, Renato Martins das; http://lattes.cnpq.br/6538317425557058
The research analysed public works buildings, members works in the construction sector has feature live with dangerous activities, being necessary preventive actions implementing practices of occupational health and safety, undertaking construction sites more productive, safe and healthy. In order to identify and propose actions to optimize the control of safety and health at work in the construction sites of public institution, was used the case study as a research methodology that had place the campus of the Federal University of Pará, a federal higher education authority; and that investigated the bidding process, the federal legislation, institutional documents, the conditions of construction sites and interviewed professionals of the institution and of the contractors. Checking evidence of imprudence on the part of contractors and deficiencies in the institution’s practices, which demonstrated that the institution needs, to improve and resize your staff to achieve success in the supervision the construction sites. The research was intended to stimulate the public administration to incorporate current practices demonstrating credibility and objectivity to the occupational safety and health performance in his works, preserving the institution as to the compliance with the current legislation and promote your visibility.
Acesso aberto (Open Access)
Análise do sistema de gestão da qualidade em laboratórios de ensaio e calibração: o caso do centro de tecnologia da Eletronorte
(Universidade Federal do Pará, 2013-07-04) CONCEIÇÃO, Fernando Wilson Sousa; NEVES, Renato Martins das; http://lattes.cnpq.br/6538317425557058
This work is to analyze the management system deployed at the Center for Technology Eletrobras Eletronorte - OCT based on the ABNT NBR ISO/IEC 17025 - and to reach that goal was accomplished an analysis to identify the main critical points for maintaining the Quality Management System – QMS. The evolvement in the use of management systems in general has increased the demand to ensure that laboratories which are part of a larger organization or offer other services may operate in accordance with a management system that complies with the standard ABNT NBR ISO 9001. In order to lead and operate a successful organization it is necessary to conduce and control it in a transparent and systematic manner. Success can result from implementing and maintaining a management system designed to continuously improved performance, taking into account both the needs of all interested parties. Laboratories accredited guarantee aspects regarding the reliability and confidentiality of the results besides the traceability of standards used in the tests and calibrations.
Acesso aberto (Open Access)
A aprendizagem baseada em problemas (ABP): uma aplicação na disciplina “Gestão empresarial” do curso de Engenharia Civil
(Universidade Federal do Pará, 2011-10-25) MACAMBIRA, Paulo Marcelo Fecury; NEVES, Renato Martins das; http://lattes.cnpq.br/6538317425557058
The methodology of Problem-based Learning or PBL, unlike conventional methods of teaching is an approach which uses problems to close the gap between theory and practice in the learning process. In addition to encouraging the construction of knowledge, proposes to contribute to the development of some non-technical professional attributes considered important for the practice of engineering in a society in constant and rapid changes. This work, an action research, experienced and sought to analyze the efficiency of the method during its application in the Business Management course, taught to the students at the penultimate and last semester of undergraduate courses in Civil Engineering. Data for analysis were collected through participant teacher / tutor´s observations and through evaluation reports, in which students were asked about PBL, its advantages and disadvantages and their potential to achieve those goals. In the three case studies, although applied to different classes, show through the students´ reports and through a continuous assessment that the learning occurred as well as the knowledge and the development of some skills and attitudes targeted in the discipline, such as: research capacity, entrepreneurship development, methodological innovation and searching for knowledge. In general, students reacted positively to the BPL. This suggests that its applicability is possible in the contexts studied. The methodology also proved to be a useful tool for professional development for teacher regarding to his practice.
Acesso aberto (Open Access)
Competências necessárias para atuação do arquiteto como coordenador do processo de projeto de edificações (Estudo de caso)
(Universidade Federal do Pará, 2011-09-13) LIMA, Paulo Gesson Mendes; NEVES, Renato Martins das; http://lattes.cnpq.br/6538317425557058
The present study sought to identify the skills required in the process of formation of the Architect, during graduation, having focused on his acting as coordinator of the building design process. The survey used a qualitative methodology with exploratory and descriptive approach, involving data collection through survey. Data were analysed as: resolutions of the MEC and CONFEA/CREA, curricular of the faculties of architecture and urbanism of the metropolitan region of Belém-PA and the perception of students and architects (teachers and professionals) through interviews, having as main result a curriculum proposal for recasting in the formation of the architect and urban planner by including expertise on coordination of the building design process order to meet the needs of professional working in the field. The main result was a proposal for the development of skills that tries to work through knowledge, skills and attitudes related to content, learning experiences and forms of assessment, the best way to effectively contribute to the formation of an architect and urban planner in order to enable these professionals can act as coordinator of the process of building design.
Acesso aberto (Open Access)
Contribuições para minimização de impacto negativo gerado por intervenções de urbanização em áreas de ocupação irregular: estudo de caso em Belém/PA
(Universidade Federal do Pará, 2011-12-06) PAES, Thelma Helena Santos de Lima; NEVES, Renato Martins das; http://lattes.cnpq.br/6538317425557058
The design and development project for the urbanization of the area of irregular occupation in order to provide decent housing to the population need to consider possible negative impact it generates the population involved in both the physical and social processes. The main objective of this research is from a case study in Belem and adaptations of research carried out on the subject, helping to minimize the negative impact that such an undertaking may cause, due to common conflicts found between culture of the people involved and the technical language of his executioners. The research is divided into three steps. Step A was composed of an exploratory study of Enterprise Social Interest Housing (EHIS) of the Housing Company (COHAB) of Para, developed for an area of irregular occupation, in order to understand its development and identify the main barriers found by the executors. Step B focused on knowing how the target population was experiencing the project object of exploratory study from the previous step as well as their expectations about its outcome. Step C consisted of analysis of data collected in step B, the comparative discussion of the results of two previous steps and conclusions. The main contributions of this work relate to a better understanding of the negative impact on the population involved to obtain better solutions for similar ventures.
Acesso aberto (Open Access)
Diretrizes para a melhoria do nível de serviço logístico na execução de perícias criminais de engenharia civil: um estudo de caso
(Universidade Federal do Pará, 2011-06-28) CARVALHO, André Brasil de; NEVES, Renato Martins das; http://lattes.cnpq.br/6538317425557058
In this work are discussed issues related to verification and analysis of logistical service level provided by the State in the execution of criminal civil engineering expertise. Were considered factors such as equipment and means of transport used, qualification of professionals involved, standardization of procedures adopted and expert reports. The goal is to obtain guidelines on activity studied through identification of potential opportunities for improvement in the management of this area of Criminalistics and considering the logistical components of performance related to key factors: inventory, transportation, facilities and information. The research methodology used was the case study, with the use of statistical reports and semi-structured interviews with the managers of the body responsible for forensic activity in Pará. Regarding the results obtained, when the the content's interviews was analyzed, it was noted that the working hypotheses has a correlation with some guidelines, such as the increase in efficiency of logistic service level in activity studied through the adoption of standardized operating procedures.
Acesso aberto (Open Access)
Influência de inundações no valor de aluguel de imóveis comerciais em Belém, Brasil
(Universidade Federal do Pará, 2021-09-27) LIMA, Gabriel Villas Boas de Amorim; NEVES, Renato Martins das; http://lattes.cnpq.br/6538317425557058
The real estate appraisal might be driven by externalities, such as surrounding, locational, and natural attributes. In residential property studies, flood influence in housing valuation is a well-known subject; however, there is a gap in commercial real estate. Thus, this thesis sought to assess if flood influences commercial property rents in Belém-PA, Northern Brazil, a city where flood-prone areas concentrate the most significant retail activity. To this, OLS regression models predicted the impact of flood-prone-zone locations on the marginal rents in a 586 commercial property database. The results revealed that highly flood-prone zones reduce commercial rents by 9.78% rather than in no flood-prone ones. It decreased 3.26% in rent values between each flood-prone zone (low, medium, and high). When moderated by the property frontage, the impact of flood-prone zone diminished because more prominent facades induced more consumer attraction, thus demand. The sensitive analysis revealed an accuracy in predicting commercial rents ranging from 13 to 36 reais per square meter. The scientific-added value concerns the novelty approach in evaluating flood influence in commercial property rents in emerging country scenarios. Besides, it assists investors by using the econometric model as a decision-maker support tool to acquire commercial real estate
Acesso aberto (Open Access)
Manutenção planejada para a redução de falhas e defeitos que ocorrem em equipamentos de uma empresa do setor de energia elétrica
(Universidade Federal do Pará, 2013-07-04) SILVA, Fábio do Nascimento; NEVES, Renato Martins das; http://lattes.cnpq.br/6538317425557058
The concern with routine maintenance is usually related to a failure of process or equipment (corrective maintenance). The systematic control of maintenance and operation of machinery and equipment is considered a high point for reducing costs and increasing operational readiness for strategic planning. As a result, it has been in service area, a large number of methods, software models and management tools available. Among them, two methods stand out: the RCM (Reliability Centered Maintenance and Reliability Centered Maintenance) of U.S. origin, and TPM (Total Productive Maintenance and Total Productive Maintenance), of Japanese origin. Thus, the main objective of this work is the systematic study of strategic planning and planned maintenance to reduce failures and defects that occur in equipment from the proposed methodologies by leading authors in the area of strategic planning and maintenance, in order to propose improvements in the use of this tool. Based on the theoretical (Amendola, Berndt, Coimbra, Right, Coser, Nakajima, Mendes Moreira, Moubray, Oliveira, Kaplan and others) studied, could begin to understand the planning of the management of planned maintenance of the Tucuruí Hydroelectric Plant and their practices in relation to the performance practices of reference and key strategic indicators highlighted by these authors. This research allowed to evaluate the current procedure adopted at Tucuruí is aligned with all the thinkers studied by simply spreading the best of all concepts hieraquics between all levels of planning and execution.
Acesso aberto (Open Access)
Modelagem da disponibilidade de uma unidade geradora da UHE-Tucuruí
(Universidade Federal do Pará, 2013-07-04) MOREIRA, Pedro Igor Carvalho; NEVES, Renato Martins das; http://lattes.cnpq.br/6538317425557058
Since 2004, the regulatory rules in the Brazilian Electricity Sector has changed. The agents who act in this market have experienced a rise in new business disputes, showing an increase in competitiveness. The availability of physical assets and maintenance costs are presented as key points of these agents competitiveness. This work aims to present a methodology of Availability Analysis of Repairable Systems during the design or operational phases, covering the measurement of maintenance costs versus the acquisition costs to an expected performance level. The suggested methodology takes the System Block Diagram and exports to the Successful Tree Analysis format, composed by logic gates "AND" and "OR" where each represents a subsystem in the main system. The analyst may re-evaluate the system's topology, adding or removing redundancies in order to adjust the performance to the requirements of availability, acquisition and maintenance costs. As results of this work were identified gaps in the standards rules which defines how to control the assets performance, was established a systematic integration of modeling techniques for reliability and availability, performance indicators of Scheduled Maintenance were incorporated, different scenarios were modeled for an Oil Circulation System and was applied to an entire Hydraulic Generating Unit by modeling the critical components in the main systems.
Acesso aberto (Open Access)
Modelagem do “tempo de execução” de obras civis: estudo de caso na Universidade Federal do Pará (UFPA)
(Universidade Federal do Pará, 2010-12-06) COUTINHO, Lêda Sílvia de Aguiar Lédo; DUARTE, André Augusto Azevedo Montenegro; http://lattes.cnpq.br/1135221873341973; NEVES, Renato Martins das; http://lattes.cnpq.br/6538317425557058
The aim of this research is to propose a numerical model that treats the variable time so efficient and effective in order to meet the real needs of customers, users and society in general. However, was performed a survey bibliographic on public management, in respect of public works, statistics and operational research to the organizational system, aiming to numerical modeling. The research was based on quantitative methodologies, with emphasis on operational research for the study of public works performed under the management of PCU/UFPA. In developing the database, information was collected construction, renovations and expansions, implemented during the period 2006 to 2009, with the Permanent Commission for Bidding (CPL) and the Foundation that support the Research Development (FADESP). By linear regressions and after the transformed functions were obtained for the model prediction the statistical parameters: correlation coefficient (R) of 0.899, the coefficient of determination (R²) of 0.808, the coefficient of determination (adjusted R²) of 0.796 and error standard (Se) of 0.41. These parameters show a strong linearized correlation between the variables, indicating that 79.60% of the variability of time to execute a public work is caused or produced by variations together the area, the budgeted value, the operational capacity of IFES; operational capacity of the company; the type of service, and the season. With the results, it was concluded that it is possible to apply and implement the prognostic model for public works, considering that it is a powerful tool in its application to improvement of administrative procedures, both in structure and in its performance, whose main result is forecast variable “time of execution” for the performance of public enterprise.
Acesso aberto (Open Access)
Modelo para obtenção de incentivos fiscais de ICMS aplicados à cadeia produtiva da construção: uma análise da indústria de cerâmica vermelha
(Universidade Federal do Pará, 2021-01-29) FARIAS JUNIOR, Claudionor Andrade; DUARTE, André Augusto Azevedo Montenegro; ttp://lattes.cnpq.br/1135221873341973; https://orcid.org/0000-0003-4586-1587; NEVES, Renato Martins das; http://lattes.cnpq.br/6538317425557058
This thesis aims to analyze and propose guidelines to the criteria inherent to the ICMS legislation applied to Industries in General, establishing a model directed to the Construction Production Chain with emphasis on the Pará Red Ceramics Industry. To this end, it adopted theoretical concepts related to the characterization of its research universe as well as the main aspects pertinent to fiscal taxation in the referred chain, distancing itself from the legal and accounting approaches. As a central reference of the study, the model recommended by the state law of Pará, which provides for special tax treatment applicable to “industries in general”, is notable. To carry out the investigation, the quantitative research method was adopted, with the application of an electronic questionnaire to the group of industries belonging to the main ceramic pole in the northern region of Brazil. From the realization of the field research, the quantitative data collected were analyzed through the use of statistical techniques of descriptive and inferential analysis (multiple linear regression, cluster analysis, and analysis of variance). The results obtained give rise to divergent positions related to the theoretical and empirical validation of the original model. As for the empirical compartment, it is suggested: (1) the revision of the way of measuring the data referring to the variables “Innovation” and “Sustainability, with emphasis on gaining variability in the related data; and (2) the review of the scores (weights) attributed to these two variables, with emphasis on their corresponding levels of benefits achieved. As a relevant result, it is also worth highlighting the mapping of the investigated sector, highlighting: (1) the assessment of the framework of the companies participating in the research, concerning the reach of the different levels of benefit; and (2) the grouping of units (firms), considering the measure of similarity of the responses obtained. Conclusively, as a theoretical and managerial contribution, we highlight the filling of an important gap in the field of study related to the tax benefits applied to the construction production chain, such as the emphasis on the importance of a scientific foundation for the formulation of legislation associated with global public policies. Particularly, the contribution directed to the legislators of the different states of the federation, supporting the reflection and discussion about the impact of the variables "Innovation" and "Sustainability" in increasing the condition of competitiveness for companies.
Acesso aberto (Open Access)
Uma nova visão da manutenção produtiva total: método prático para aplicação em empresas de geração e transmissão de energia
(Universidade Federal do Pará, 2013-07-05) SANTOS, Edson de Souza; NEVES, Renato Martins das; http://lattes.cnpq.br/6538317425557058
Nowadays the Brazilian electricity sector is structured on the availability of power plants, substations and transmission lines. By applying the rules of the new model of the Brazilian electric sector, generation and transmission companies began to be subjected to mechanisms that penalize the unavailability caused by forced or scheduled shutdowns, of your assets. To avoid the application of these mechanisms, and other penalties, which cause great damage, it is necessary that the maintenance process ensures the availability and reliability of equipment and facilities. This paper proposes a method of production management, also directed to the elimination of the existing losses in generation and transmission of electric energy, adapted from TPM – Total Productive Maintenance. The development of the method is based on the study of the application of TPM in generation and transmission plants of Eletronorte. The proposed method should promote the management quality not only in operate and maintenance (O&M), but also in all process that can impact the availability of generation and transmission assets.
Acesso aberto (Open Access)
A realidade virtual como ferramenta de aprendizagem na formação do profissional da construção civil
(Universidade Federal do Pará, 2014-12-16) ALVES, Roberto Cavalleiro de Macedo; NEVES, Renato Martins das; http://lattes.cnpq.br/6538317425557058
Society is becoming more demanding. The customer has become more informed, so demand differentiated products and services for quality, while requiring fast delivery, lower cost and greater flexibility. As a result of these market requirements, the qualification is affected; there is a need for a new professional profile. Questions of how people learn and the conditions under which they are fundamental to the formation of this professional. This research intents to evaluate the potential of virtual reality as a teaching tool in the teaching-learning process in the formation of new engineering professionals, seeking to minimize the relationship between theory, practice, such knowledge contextualization and their applicability, because this is one of major current problem today in several engineering schools, still showing interactivity as one of its main characteristics, as well as his great power simulation. For such a virtual learning environment was developed in virtual reality on the platform of Virtual Authoring System Technical Instructions that shows the step by step process of the executive masonry and then applied to a case study with students from first semester of courses related to the area construction, which made considerable gains knowledge of concepts related to the theme and the execution sequence of masonry.