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Research Square 2021年

作者： Velázquez, Daniel René Tasé Helleno, André Luís Fals, Hipólito Carvajal dos Santos, Raphael Galdino Production Engineering Post-Graduation Program Methodist University of Piracicaba São Paulo Brazil Engineering School Mackenzie Presbyterian University São Paulo Brazil College of Mechanical and Industrial Engineering Oriente University Santiago de Cuba Cuba Federal Technological University of Paraná Paraná Brazil Insper - Institute for Education and Research São Paulo Brazil

Laser Metal Deposition (LMD) process is an additive manufacturing technique that has attracted the interest of the automotive and aerospace industries due to its ability to manufacture parts with complex geometries and different types of metallic materials. However, the structure of the deposited layers and the geometrical characteristics of the manufactured parts are influenced by the interaction among the deposition process parameters. In this paper, fuzzy inference (FIS) technique was used to develop two models for predicting the geometrical characteristics and, for optimizing the LMD process parameters using AISI 316 stainless steel powder and substrate. An experimental design, based on factorial analysis, was used to correlate the influence of selected deposition process parameters, laser power (Lp), powder flow (Pf) and focal length (Fl) with the process geometrical characteristics bead height (Bh), bead width (Bw), depth of penetration (Dp), dilution (d) and wetting angle (wa). The factors Lp and Fl were used with three operating levels each: Lp = 225 W, 250 W, 275 W, and Fl = 4.8 mm, 5.0 mm, 5.2 mm. The factor Pf was used with two levels, 9.40 g/s and 13.35 g/s. Analysis of variance allowed identifying that the Pf affect the Bh, Bh/Bw ratio, d and wa. The increase in Laser power (Lp) resulted in an increase of the geometric characteristics Bw and Dp. The first FIS, for predicting the bead’s geometrical characteristics, presented high adequacy (relative error up to 8.43 %) for assessing the experimental conditions. The second FIS indicated the best possible interaction, given the studied operating conditions and the variables evaluated. The maximum Output Defuzzified Index (ODI = 0.845) was obtained with the deposition process parameters Lp = 250 W, Fl = 5 mm, and Pf = 9.40 g/s. © 2021, CC BY.

关键词： Forecasting

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Assessing Footwear Factories Under Emergy And Material Flow Accounting Tools After Implementing Cleaner production Practices

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环境核算与管理（英文） 2019年第4期7卷 429-448页

作者： Raquel R.Janot Pacheco Cecília M.V.B.Almeida Feni Agostinho Fábio Sevegnani Biagio F.Giannetti Gengyuan Liu Post-graduation Program in Production Engineering Paulista University Rua Doutor Bacelar 1212 04026002 Sao Paulo Brazil Post-graduation Program in Production Engineering Paulista University Rua Doutor Bacelar 1212 04026002 Sao Paulo Brazil State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Beijing Normal University Beijing 100875 China State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Beijing Normal University Beijing 100875 China

Strategies have been developed in the last decades to improve the sustainability of produced goods,including cleaner production (CP) as an important approach in identifying problems and propose alternatives for improvement under a holistic *** Serrana city,located at Minas Gerais state,Brazil,has a footwear cluster considered fundamental for the regional socioeconomic ***,the production is still based on outdated management techniques that make it economically noncompetitive and cause high load on the natural environment,which claims for studies supporting decisions towards higher *** work aims to discuss about the results obtained after applying the CP approach in three footwear factories located in Nova Serrana ***,the factories are assessed under emergy (with an "m") and material flow accounting *** show that CP was helpful in identifying opportunities for improvement related to better management that is usually easy and cheap to be achieved,including employee training,updating internal control of material storages,reusing scrap materials,and redesigning the procedure of synthetic leather *** indicators obtained from the used environmental accounting tools suggest two approaches for a decision: (i) when pursuing sustainability under a global perspective,footwear factory C should be promoted since it causes lower load on the upstream processes by demanding lower emergy (3.8 E 18 sej/yr),abiotic,water and air resources (1.13 E6 kg/yr,3.66 E7 kg/yr,and 3.82 E5 kg/yr respectively);(ii) when pursuing sustainability by considering socioeconomic short to medium needs,footwear factory B should be promoted since it has higher efficiency in producing footwear (4.03E13 sej/kg for emergy demand,10.64 kg/kg for abiotic,319.09 kg/kg for water and 3.96 kg/kg for air).This work contributes with practical basis for the environmental accounting and management of footwear enterprises providing important su

关键词： Cleaner production Footwear industry Emergy accounting Material intensity

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Theoretical background of innovation in services in small and medium-sized enterprises: literature mapping

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Journal of Innovation and Entrepreneurship 2020年第1期9卷 1-26页

作者： de Oliveira Sousa, Saymon Ricardo da Silva, Wesley Vieira da Veiga, Claudimar Pereira Zanini, Roselaine Ruviaro Statistics Department Federal University of Santa Maria – UFSM Building 13 Office 1205 C – CCNE Roraima Ave 1000 Santa Maria RS Brazil Department of General Applied Administration Federal University of Parana – UFPR Lathório Meissner Ave 632 Curitiba PR Brazil Post-Graduation Program of Production Engineering Federal University of Santa Maria UFSM Roraima Ave 1000 Santa Maria 97105-100 RS Brazil

The aim of this study was to map the innovation of services in small and medium-sized enterprises, as reported on the Web of Science and SCOPUS databases, using a structured review, involving 121 papers published between 1946 and 2019. There has been an increase in the number of studies in recent years, covering 23 countries on six continents, with the UK representing 48.78% of the studies. Patterns in the use of methods applied in research were identified, as well as a conceptual structure of the field. The main areas of science were finance, marketing, energy, and green engineering. The study makes an original contribution to the literature, highlighting the interest in the expansion of knowledge among the academic community, in addition to enabling a deeper analysis of the relation between the evaluated constructs. © 2020, The Author(s).

关键词： Innovation in services Literature mapping Small and medium-sized enterprises Systematic literature review

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Retraction notice to "Managing the invisible threat of microplastics in marine ecosystems: Lessons from coast of the Bay of Bengal" [Sci. Total Environ. 889 (2023) 164224]

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The Science of the total environment 2024年 957卷 177730页

作者： Al-Nure Mubin Shahoriar Arefin Md Sonir Mia Abu Reza Md Towfiqul Islam A B M Mainul Bari Md Saiful Islam Mir Mohammad Ali Md Abu Bakar Siddique M Safiur Rahman Venkatramanan Senapathi Abubakr M Idris Guilherme Malafaia Department of Disaster Management Begum Rokeya University Rangpur 5400 Bangladesh. Department of Disaster Management Begum Rokeya University Rangpur 5400 Bangladesh Department of Development Studies Daffodil International University Dhaka 1216 Bangladesh. Department of Industrial and Production Engineering Bangladesh University of Engineering and Technology Dhaka 1000 Bangladesh. Department of Soil Science Patuakhali Science and Technology University Dumki Patuakhali 8602 Bangladesh. Department of Aquaculture Sher - e - Bangla Agricultural University Dhaka 1207 Bangladesh. Institute of National Analytical Research and Service (INARS) Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhanmondi Dhaka 1205 Bangladesh. Analytical Chemistry Laboratory Chemistry Division Atomic Energy Centre Dhaka (AECD) Bangladesh Atomic Energy Commission Dhaka 1000 Bangladesh. Department of Disaster Management Alagappa University Karaikudi Tamilnadu India. Department of Chemistry College of Science King Khalid University Abha 62529 Saudi Arabia Research Center for Advanced Materials Science (RCAMS) King Khalid University Abha Saudi Arabia. Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia Uberlândia MG Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás Goiânia GO Brazil.

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Retraction notice to "Personal protective equipment-derived pollution during Covid-19 era: A critical review of ecotoxicology impacts, intervention strategies, and future challenges" [Sci. Total Environ. 887(2023) 164164]

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The Science of the total environment 2025年 967卷 178758页

作者： Mehedi Hasan Abu Reza Md Towfiqul Islam Most Mastura Munia Farjana Jion Md Naimur Rahman Susmita Datta Peu Arnob Das A B M Mainul Bari Md Saiful Islam Subodh Chandra Pal Aznarul Islam Tasrina Rabia Choudhury Md Refat Jahan Rakib Abubakr M Idris Guilherme Malafaia Department of Disaster Management Begum Rokeya University Rangpur 5400 Bangladesh. Department of Disaster Management Begum Rokeya University Rangpur 5400 Bangladesh Department of Development Studies Daffodil International University Dhaka 1216 Bangladesh. Department of Geography and Environmental Science Begum Rokeya University Rangpur 5400 Bangladesh. Department of Agriculture Hajee Mohammad Danesh Science and Technology University Dinajpur 5200 Bangladesh. Department of Mechanical Engineering Rajshahi University of Engineering & Technology 6 Rajshahi 6204 Bangladesh. Department of Industrial and Production Engineering Bangladesh University of Engineering and Technology Dhaka 1000 Bangladesh. Department of Soil Science Patuakhali Science and Technology University Dumki Patuakhali 8602 Bangladesh. Department of Geography The University of Burdwan Bardhaman 713104 West Bengal India. Department of Geography Aliah University 17 Gorachand Road Kolkata 700 014 West Bengal India. Analytical Chemistry Laboratory Chemistry Division Atomic Energy Centre Dhaka (AECD) Bangladesh Atomic Energy Commission Dhaka 1000 Bangladesh. Department of Fisheries and Marine Science Faculty of Science Noakhali Science and Technology University Noakhali Bangladesh. Department of Chemistry College of Science King Khalid University Abha 62529 Saudi Arabia Research Center for Advanced Materials Science (RCAMS) King Khalid University Abha Saudi Arabia. Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia Uberlândia MG Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás Goiânia GO Brazil.

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Managing the invisible threat of microplastics in marine ecosystems: Lessons from coast of the Bay of Bengal

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The Science of the total environment 2023年 889卷 164224页

作者： Al-Nure Mubin Shahoriar Arefin Md Sonir Mia Abu Reza Md Towfiqul Islam A B M Mainul Bari Md Saiful Islam Mir Mohammad Ali Md Abu Bakar Siddique M Safiur Rahman Venkatramanan Senapathi Abubakr M Idris Guilherme Malafaia Department of Disaster Management Begum Rokeya University Rangpur 5400 Bangladesh. Department of Disaster Management Begum Rokeya University Rangpur 5400 Bangladesh Department of Development Studies Daffodil International University Dhaka 1216 Bangladesh. Electronic address: towfiq_dm@brur.ac.bd. Department of Industrial and Production Engineering Bangladesh University of Engineering and Technology Dhaka 1000 Bangladesh. Department of Soil Science Patuakhali Science and Technology University Dumki Patuakhali 8602 Bangladesh. Department of Aquaculture Sher - e - Bangla Agricultural University Dhaka 1207 Bangladesh. Institute of National Analytical Research and Service (INARS) Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhanmondi Dhaka 1205 Bangladesh. Analytical Chemistry Laboratory Chemistry Division Atomic Energy Centre Dhaka (AECD) Bangladesh Atomic Energy Commission Dhaka 1000 Bangladesh. Department of Disaster Management Alagappa University Karaikudi Tamilnadu India. Department of Chemistry College of Science King Khalid University Abha 62529 Saudi Arabia Research Center for Advanced Materials Science (RCAMS) King Khalid University Abha Saudi Arabia. Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia Uberlândia MG Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás Goiânia GO Brazil. Electronic address: guilhermeifgoiano@***.

Invisible microplastics (MP) have become a significant problem worldwide in recent years. Although many studies have highlighted the sources, effects, and fate of MPs pollution on various ecosystems in developed countries, there is limited information on MPs in the marine ecosystem along the northeastern coast of the Bay of Bengal (BoB). Coastal ecosystems along the BoB coasts are critical to a biodiverse ecology that supports human survival and resource extraction. However, the multi-environmental hotspots, ecotoxicity effects, transport mechanisms, fates, and intervention measures to control MP pollution initiatives along the BoB coasts have received little attention. Therefore, this review aims to highlight the multi-environmental hotspots, ecotoxicity effects, sources, fates, and intervention measures of MP in the northeastern BoB to understand how MP spreads in the nearshore marine ecosystem. This study critically evaluates the hotspots and ecotoxic effects of pollution from MP on the coastal multi-environment, e.g., soil, sediment, salt, water, and fish, as well as current intervention measures and additional mitigation recommendations. This study identified the northeastern part of the BoB as a hotspot for MP. In addition, the transport mechanisms and fate of MP in different environmental compartments are highlighted, as are research gaps and potential future research areas. Research on the ecotoxic effects of MP on BoB marine ecosystems must be a top priority, given the increasing use of plastics and the presence of significant marine products worldwide. The knowledge gained from this study would inform decision-makers and stakeholders in a way that could reduce the impact of the legacy of micro- and nanoplastics in the area. This study also proposes structural and non-structural measures to mitigate the effects of MPs and promote sustainable management.

关键词： Bay of Bengal coast Marine ecosystem Marine pollution Microplastic Sustainable management

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Understanding the Energy-Water-Land Flow Nexus in Transnational Trade of the Belt and Road Countries

SSRN

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SSRN 2020年

作者： Nawab, Asim Liu, Gengyuan Meng, Fanxin Zhang, Lixiao Hao, Yan Giannetti, Biagio F. Agostinho, Feni Almeida, Cecília M.V.B. Xue, Jingyan Casazza, Marco State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Beijing Normal University Beijing100875 China Beijing Engineering Research Center for Watershed Environmental Restoration & Integrated Ecological Regulation Beijing100875 China School of Forestry & Environmental Studies Yale University New HavenCT06511 United States Post-graduation Program in Production Engineering Paulista University Brazil University of Naples ‘Parthenope’ Department of Science and Technology Centro Direzionale Isola C4 Naples80143 Italy

Economic globalization and population growth have greatly challenged energy, water and land resources to meet demand at national and supra-national level. A growing share of this demand is met through trade. The Belt and Road, a major global initiative of China, with trade as one of its core fields is of particular importance due to greater potential of economic growth, substantial population size and varying degree of resource availability. The initiative reflects a new phase of globalization yet resources management with nexus thinking has received little attention. The increasing economic interdependence of national economies have contributed to rise in production and trade of goods and services, these activities require the input of energy-water-land and generate disturbances in the environment. The multi-regional input-output approach is utilized, to assess resources use by production as well as consumption (for the year 2010). A nexus strength indicator was developed to show the simultaneous use of multiple resources in economic system, conceived as resource nexus. The ternary diagrams were used for screening resources combinations along with *** revealed that China has strong nexus strength that indicates large usage of the three resources together. Besides China, the East European countries were also positioned mostly at the center of ternary plot suggesting somewhat equal contributions of energy, water and land to the resource nexus. On the contrary, countries that appeared at the margins of the plot indicated one or two stronger nexus components in the three resources system. For instance, Russia largely used land, South Korea was entirely driven by energy while India mostly used water in the ternary mix. Due to differences in industrial structure, trade policy priorities and technology use, the resource nexus matters are not the same among countries. The nexus strength indicator established that strong nexus caused by intensive use of e

关键词： Roads and streets

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Synthesis of cobalt ferrite (CoFe2O4) by combustion with different concentrations of glycine

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IOP Conference Series: Materials Science and engineering 2019年第1期659卷

作者： C G Kaufmann Junior R Y S Zampiva A K Alves C P Bergmann L Giorgini Post-Graduation Program in Mining Metallurgy and Materials Engineering (PPGE3M) Federal University of Rio Grande do Sul Osvaldo Aranha 99 90035-190 Porto Alegre Brazil Post-Graduation Program in Production and Transport Engineering (PPGEP) Federal University of Rio Grande do Sul Osvaldo Aranha 99 90035-190 Porto Alegre Brazil Department of Industrial Chemistry 'Toso Montanari' University of Bologna Viale del Risorgimento 4 40136 Bologna Italy

Among the wide range of applications of Cobalt Ferrite (CoFe2O4), its usage for the manufacturing of modern electronic devices such as solar panels, capacitors and batteries has been studied' lately. Hence, solar-powered vehicles, which strongly rely their performance on energy efficient electronics, is a sector that could particularly benefit from enhanced applications of such material. In this work, the synthesis of Cobalt Ferrite was studied by means of Solution Combustion Synthesis (SCS) using iron nitrate nonahydrate and cobalt nitrate hexahydrate as precursors, and glycine as fuel. The nitrates were dissolved in distilled water and placed under stirring and heating for 5 minutes; when the temperature reached 60°C, glycine was added; after complete homogenization, the solution was placed in an electric oven (400°C) until complete combustion (approximately 15 minutes). Three syntheses were carried out using different concentrations of fuel: lean, stoichiometric and rich. The product crystallite size and composition were investigated in order to determine the influence of the fuel concentration on the structure of the produced cobalt ferrite.

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A comparative analysis between clustered and non-clustered companies using innovation indicators

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IFAC-PapersOnLine 2015年第3期48卷 155-160页

作者： Saraceni, Adriana V. De Resende, Luis Mauricio Martins Serpe, Luis Felipe De Andrade Junior, Pedro Paulo Federal University of Technology - Paraná UTFPR - Production Engineering Post Graduation Program Brazil

The Innovation has become a central and pivotal element in the development of organizations. The aim of this paper was to analyze and compare the Innovation Indexes using indicators in two Brazilian regions, in order to identify if independent international companies have higher innovation indexes than those that belonging to an industrial cluster. Methodologically, it was used a research tool to identify the Innovation Index of these companies (questionnaires with open and closed questions), applied to the company's senior managers. The results showed that there is a link between the innovation index and companies within an industrial cluster. Thus, it was possible to observe that the reunion in clusters favors the development of innovation, observing that the general indexes obtained were bigger than those of the independent international companies were. Furthermore, the study made possible to obtain a clear view on the importance of different aspects of innovation and their influence on the Innovation Index obtained on both scenarios. © 2015, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.

关键词： Surveys

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Performance Management in Horizontal Business Networks: A systematic review

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IFAC-PapersOnLine 2015年第3期48卷 1827-1833页

作者： Bonatto, Franciele De Resende, Luis Mauricio Martins Betim, Leozenir Mendes Pereira, Rafael Da Silva Von Agner, Thompson Federal University of Technology- Paraná UTFPR Production Engineering Post Graduation Program Ponta Grossa PR Brazil Trade and Investment Promotion Bureau Embassy of Brazil Washington DC United States

The objective of this study was to identify the perspectives and factors affecting management performance of companies in horizontal networks. The instrument used for the selection of articles was Proknow C-structured. As a result, 20 articles relevant to the research topic were found in the 13 selected articles from the databases. After, the systematic analysis of the articles, it was identified eight perspectives: economic/social, financial, customer, environment, social capital, process, growth/learning and collaboration beyond 25 factors. Such factors and perspectives will serve as an aid for managers to evaluate the management of a horizontal network and serve as a starting point for future studies. © 2015, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.

关键词： Network of companies Performance management Evaluation of performance Systematic review

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