检索结果-内蒙古大学图书馆

International Carpathian Control Conference (ICCC)

作者： Vinícius Berno Da Silva Paulo César Barros Rodrigues Murillo Ferreira Dos Santos Paolo Mercorelli Milena Faria Pinto Wolmar Araújo Neto Department of Electroelectronics CEFET-MG Leopoldina Brasil Institute for Production Technology and Systems (IPTS) Leuphana University of Lüneburg Germany Graduate Program in Electrical Engineering CEFET-RJ Rio de Janeiro Brasil Federal University of Espírito Santo UFES Vitória Brazil

ISBN: (数字)9798350350708

ISBN: (纸本)9798350350715

Gain scheduling has been successfully applied in many different areas due to the positive results achieved when applied to nonlinear control. Its utilization enables the controller to respond rapidly to changes in operating conditions. This study demonstrates the application of gain scheduling to a SMAR didactic level system to implement adaptive control. The results exhibited a strong response with minor errors using a Proportional and Integral (PI) controller, which facilitated the development of two generic equations for determining the values of K p (proportional gain) and K i (integral gain) based on the desired set point.

关键词： Adaptive scheduling PI control Liquids System dynamics Integral equations Noise Gain measurement

来源：评论

学校读者我要写书评

暂无评论

A multi-objective model for sustainable reverse logistics design for end-of-life tires under a regulatory framework: A Chilean case study

A multi-objective model for sustainable reverse logistics de...

引用

Electrical, Computer, Communications and Mechatronics engineering (ICECCME), International Conference on

作者： Ignacio Castañeda Rodríguez Andrea Espinoza Pérez Hakim Boudaoud Department of Industrial Engineering University of Santiago of Chile Santiago Chile Department of Industrial Engineering Program for the Development of Sustainable Production Systems University of Santiago of Chile Santiago Chile Équipe de Recherche sur les Processus Innovatifs ERPI Université de Lorraine Nancy France

Growing concern about environmental pollution has led to a tightening of legislation worldwide. An example is the Extended Producer Responsibility (EPR) principle, which holds producers responsible for the life-cycle management of their products. In this context, the management of End-of-life tires (ELT) presents a significant challenge due to the pollution they cause by being disposed of in landfills without prior treatment. Thus, there is an opportunity to implement ELT recovery technologies that explore new sustainable alternatives. This work presents a multi-period, multi-product, multi-objective optimization model that supports decision-making for the design of a sustainable reverse logistics network. A case study is presented to show the usefulness of this model, considering the implementation of pyrolysis plants for the treatment of ELT in Chile under the regulatory framework of the EPR Law. The results show that even though the objectives are opposed, the regulatory framework of the EPR Law allows for mitigating the conflict between economic, environmental, and social decisions by establishing collection goals. The epsilon-constraint method can find economically profitable solutions, obtaining gaps of at least 8.5% and at most 19.3%. However, this will depend on the changes and sensitivity of the uncertain parameters of the model. Conclusions call for reinforcement of regulatory policies involving reverse logistics and ELT management. Future work considers the implementation of robust optimization to deal better with uncertainty.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Use of corncob and pineapple peel as associated substrates for biosurfactant production

引用

Environmental Science and Pollution Research 2024年第47期31卷 57973-57988页

作者： Santos, Brenda Lohanny Passos Vieira, Isabela Maria Monteiro Santos, Pablo Omar Lubarino Menezes, Millena Souza de Souza, Roberto Rodrigues Ruzene, Denise Santos Silva, Daniel Pereira Northeastern Biotechnology Network Federal University of Sergipe SE São Cristóvão49100-000 Brazil Center for Exact Sciences and Technology Federal University of Sergipe SE São Cristóvão49100-000 Brazil Graduate Program in Biotechnology Federal University of Sergipe SE São Cristóvão49100-000 Brazil Graduate Program in Intellectual Property Science Federal University of Sergipe SE São Cristóvão49100-000 Brazil CISAS – Center for Research and Development in Agrifood Systems and Sustainability Instituto Politécnico de Viana Do Castelo Viana Do Castelo4900-347 Portugal Department of Production Engineering Federal University of Sergipe Rodovia Marechal Rondon S/N Jardim Rosa Elze Sergipe São Cristóvão49100-000 Brazil

Biosurfactants are amphiphilic biomolecules with promising tensoative and emulsifying properties that find application in the most varied industrial sectors: environment, food, agriculture, petroleum, cosmetics, and hygiene. In the current work, a 23 full-factorial design was performed to evaluate the effect and interactions of pineapple peel and corncob as substrates for biosurfactant production by Bacillus subtilis LMA-ICF-PC 001. In a previous stage, an alkaline pretreatment was applied to corncob samples to extract the xylose-rich hydrolysate. The results indicated that pineapple peel extract and xylose-rich hydrolysate acted as partial glucose substitutes, minimizing production costs with exogenous substrates. Biosurfactant I (obtained at 8.11% pineapple peel extract, 8.11% xylose-rich hydrolysate from corncob, and 2.8109 g/L glucose) exhibited a significant surface tension reduction (52.37%) and a promising bioremediation potential (87.36%). On the other hand, biosurfactant III (obtained at 8.11% pineapple peel extract, 31.89% xylose-rich hydrolysate from corncob, and 2.8109 g/L glucose) exhibited the maximum emulsification index in engine oil (69.60%), the lowest critical micellar concentration (68 mg/L), and the highest biosurfactant production (5.59 g/L). These findings demonstrated that using pineapple peel extract and xylose-rich hydrolysate from corncob effectively supports biosurfactant synthesis by B. subtilis, reinforcing how agro-industrial wastes can substitute traditional carbon sources, contributing to cost reduction and environmental sustainability. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.

关键词： Ananas comosus Bacillus subtilis Zea mays Agro-industrial waste Bioremediation potential Emulsification index Surface tension

来源：评论

学校读者我要写书评

暂无评论

Impact of the DRG System on Technical Efficiency: A Case Study of Chilean High-Complexity Hospitals

Impact of the DRG System on Technical Efficiency: A Case Stu...

引用

Computer Science Society (SCCC) International Conference Chilean

作者： Javier Pérez-Cáceres José Lillo-Vidal Igor Tona Peres Manuel Villalobos-Cid Departamento de Ingeniería Informática Universidad de Santiago de Chile Santiago Chile Department of Industrial Engineering Pontifical Catholic University of Rio de Janeiro Rio de Janeiro Brazil Program for the Development of Sustainable Production Systems (PDSPS) Universidad de Santiago de Chile Santiago Chile

ISBN: (数字)9798331527891

ISBN: (纸本)9798331527907

The efficient use of resources is critical in healthcare. Despite significant expenditure increases, hospital productivity has stayed the same proportionally in Chile, suggesting potential issues in resource management. Technical efficiency (TE) allows the comparison of hospitals with similar profiles of patients or case-mix, which is critical for understanding how resources are utilised to generate healthcare outputs. Internationally, the Diagnosis Related Groups (DRG) system has been widely used as a standard to normalise and perform fair comparisons of healthcare production. However, in Chile, its implementation could be improved. The present study evaluates the TE of high-complexity public hospitals in Chile using computational methods, including Data Envelopment Analysis (DEA) and the Malmquist productivity index (MPI). We compare the impact of the DRG system in TE estimation with other categorisations used in the related literature, such as the Chilean Ministry of Health and geographical categorisation. Results reveal significant differences between the TE estimated (5% to 50%), discrepancies in rankings, and resource utilisation. These findings suggest that the full use of the DRG system in TE must be included since it enhances resource allocation and management in public hospitals.

关键词： Productivity Computer science Hospitals Estimation Resource management Indexes Standards Data envelopment analysis

来源：评论

学校读者我要写书评

暂无评论

Sustainability in practice: Analyzing environmental, social and governance practices in leading Latin American organizations' reports

引用

Cleaner production Letters 2024年 7卷

作者： Hluszko, Cleiton Barros, Murillo Vetroni Souza, Adriano Martins de Ramos Huarachi, Diego Alexis Castillo Ulloa, Micaela Ines Moretti, Vinicius Puglieri, Fabio Neves de Francisco, Antonio Carlos Sustainable Production Systems Laboratory (LESP) Postgraduate Program of Production Engineering (PPGEP) Universidade Tecnológica Federal do Paraná (UTFPR) R. Doutor Washington Subtil Chueire 330—Jardim Carvalho PR Ponta Grossa 84017-220 Brazil Department of Industrial Engineering Paraná State University R. Comendador Correia Júnior 117 Paraná Paranaguá 83203-560 Brazil

Sustainable development is crucial for the competitive advantage of industries. However, implementing this business model faces challenges that can impact its integration and compromise the adoption of actions to address environmental, social, and governance (ESG) issues that are of interest to stakeholders. To date, no in-depth study has presented the relationship between ESG issues and practical actions employed for sustainable development in companies within the Latin American context. Therefore, this article aims to evaluate the relationships between the main ESG issues and the actions applied to develop this theme in the Latin American industrial context, highlighting the main barriers, opportunities, and implications for this integration. As a methodology, a documentary analysis of 79 reports from Brazil, Peru, Mexico, Chile, Colombia, and Argentina was conducted using the content analysis method. This analysis highlighted central concerns such as climate change, water management, waste management, biodiversity, local communities, diversity, and inclusion. Additionally, a trend of ESG thematic dissemination was identified, which is in an early stage of maturity and lacks studies to quantify and diagnose the environmental impacts of Latin American industries. These findings directly impact the empirical evidence of how the Latin American industry is neglecting social issues, is still developing studies to quantify its environmental impacts, and strongly adheres to the concept and theme of ESG. The conclusions of this study highlight three main points: (i) From 2018 to 2022, 47% of material topics were related to at least one ESG pillar, with a predominance of the environmental dimension, (ii) there was a trend of increased adherence to ESG and improvements in the materiality of reports, and (iii) it is recommended to enhance indicators, accelerate the sustainable transition, and integrate ESG themes into supplier selection and workplace safety to strengthen sus

关键词： Corporate social responsibility ESG Financial performance Sustainability reporting Sustainable business Sustainable disclosure

来源：评论

学校读者我要写书评

暂无评论

Analysis of the motivations for ISO 9001:2015 adoption in the Brazilian business context

引用

Quality Management Journal 2021年第2期28卷 76-85页

作者： Siltori, Patricia F. S. Rampasso, Izabela Simon Martins, Vitor W. B. Anholon, Rosley Silva, Dirceu Souza Pinto, Jefferson Leal Filho, Walter School of Mechanical Engineering University of Campinas Campinas Brazil PNPD/CAPES Program Doctoral Program in Sustainable Management Systems Federal Fluminense University Niterói Brazil Department of Production Engineering State University of Pará Belém Brazil Faculty of Education University of Campinas Campinas Brazil Federal Institute of São Paulo Bragança Paulista Brazil Faculty of Life Sciences Hamburg University of Applied Sciences Hamburg Germany

This study aims to analyze the reasons that motivate Brazilian companies to implement Quality Management systems, according to ISO 9001:2015 requirements. Based on information collected in the literature, a questionnaire was developed and answered by professionals that work with the mentioned standard in their companies. An Exploratory Factor Analysis was conducted with the collected data to group the validated variables into two constructs that present the most part of information variance. These constructs were entitled “internal improvements related motives” and “market related motives”. The findings of this research confirm and complement previous studies performed in Brazil and in other countries. © 2021 American Society for Quality.

关键词： Adoption motives ISO 9001 motivation quality management

来源：评论

学校读者我要写书评

暂无评论

The product-mold-machine manufacturing problem

引用

IFAC-PapersOnLine 2022年第10期55卷 866-871页

作者： Nelson Troncoso Héctor Cancela Pedro Piñeyro Franco Quezada Óscar C. Vásquez University of Santiago of Chile (USACH) Faculty of Engineering Program for the Development of Sustainable Production Systems (PDSPS) Chile University of Santiago of Chile (USACH) Faculty of Engineering Industrial Engineering Department Chile Departamento de Investigación Operativa Instituto de Computación (InCo) Facultad de Ingeniería Universidad de la República Uruguay

This paper introduces the product-mold-machine manufacturing problem, which is related to the manufacturing process of tires, plastics, ceramics, and glass. Each product has its own shape and mechanical properties obtained from processing a specific mold on a machine. Each machine can process a set of molds at the same time and, hence, the processing time on a machine depends on the longest processing time among the set of molds on the machine. The objective is to find a production plan that minimizes the total number of periods needed to meet the demand of each product, considering a limited number of machines, molds, changeover times, and incompatibilities constraints. We provide a mixed integer linear programming model for the problem and propose two constructive heuristics of polynomial-time, which provide upper bounds on the optimal value and easy-to-implement feasible solutions. Numerical experiments carried out over instances based on real data show the effectiveness of the proposed approaches.

关键词： Scheduling Lot-sizing Makespan Combinatorial Optimization Heuristics

来源：评论

学校读者我要写书评

暂无评论

Socio-biodiversity supply chain: Sustainable practices of a Brazilian cosmetic company

引用

Environmental Quality Management 2020年第1期30卷 25-31页

作者： Cassol, Maurício Sellitto, Miguel Afonso Production and Systems Engineering Graduate Program (PPGEPS) Universidade do Vale do Rio dos Sinos (UNISINOS) Avenida Unisinos 950 São Leopoldo 93022-750 RS Brazil

The purpose of this article is to analyze and describe sustainable practices based on biodiversity assets adopted by one of the largest global cosmetics company, located in Brazil. The company occupies the 19th position of the Global Ranking 100 Sustainability. The research method is bibliographic research that employed open, non-classified documents publicized by the company. The main findings of the study underscore the relevance of the rural communities in developing a supply chain based on biodiversity as well as the importance of the relationships among the tiers to implement a sustainable business model. The company relies on high-quality products associated with environmental development. Currently, biodiversity suppliers account for 80% circa of natural raw materials, the so-called biodiversity asset, which represents the core of the sustainable business model of the company. The findings can be generalized by helping other supply chains to develop and implement sustainable business models supported by biodiversity. Such type of a model can help companies achieve expressive business performance and, at the same time, social relevance to peripheral or vulnerable rural communities. © 2020 Wiley Periodicals LLC

关键词： biodiversity circular economy reverse logistics social responsibility supply chains

来源：评论

学校读者我要写书评

暂无评论

Electromobility strategy on emerging economies: Beyond selling electric vehicles

引用

Cleaner Energy systems 2024年 9卷

作者： Velho, Sérgio Roberto Knorr Vanderlinde, Artur Santana Guedes Almeida, Antônio Henrique Aguiar Barbalho, Sanderson César Macêdo Ministry of Development Industry Commerce and Services University of Brasília Esplanada dos Ministérios Block J – 5th-floor/DF Brasília 70053-900 Brazil Production Engineering Department Faculty of Technology University of Brasília Darcy Ribeiro University Campus Federal District Brasília 70910-900 Brazil Production Engineering Department Graduate Program in Mechatronic Systems (PPMEC) Faculty of Technology University of Brasília Darcy Ribeiro University Campus Federal District Brasília 70910-900 Brazil

Electromobility (EM) has emerged as a promising solution to achieve carbon neutrality goals by replacing traditional fossil fuel-powered transportation with electric vehicles (EVs). This sustainable transportation option significantly reduces energy consumption and eliminates greenhouse gas emissions, contributing to mitigating climate change and improving air quality. While some countries have implemented strategies to promote EM adoption, emerging economies like Brazil face complex challenges. This research employs Q-methodology to explore the viewpoints and opinions of Brazilian specialists in the field of EM, identifying challenges and opportunities for successful adoption. The study also examines the broader implications for emerging countries and their automotive industries. The findings emphasize the importance of addressing EV costs, propulsion technologies, and the need for government incentives and policies. Additionally, the research highlights the role of education and urban mobility in promoting EM. While the study offers valuable insights, it acknowledges limitations in the sample and suggests future research directions. © 2024 The Authors

关键词： Automotive value chain Electric vehicles Electromobility Q-methodology Urban mobility

来源：评论

学校读者我要写书评

暂无评论

Towards a Predictive Approach for Omni-channel Retailing Supply Chains

引用

IFAC-PapersOnLine 2019年第13期52卷 844-850页

作者： Pereira, Marina Meireles Frazzon, Enzo Morosini Graduate Program in Production Engineering Industrial and Systems Engineering Department Technology Center Federal University of Santa Catarina Florianópolis Santa Catarina Brazil

The adoption of omni-channel strategy has changed the relation between retailers and customers and brought more complexity to the retailing supply chains. To address the increasing complexity, it is necessary to adopt innovative approaches based on information technologies and intelligent decision methods. The challenges to retailers are improving the accuracy of offline and online channels demand forecasting, better managing offline and online customer's needs, thus reducing the uncertainties of the omni-channel retailing supply chain. In this context, this research paper aims to propose a predictive approach for omni-channel retailing supply chain combining clustering with artificial neural network to handle demand uncertainty. © 2019, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.

关键词： Neural networks Complex networks Learning systems Sales Supply chain management Channel strategies Clustering Demand forecasting Demand uncertainty Innovative approaches Intelligent decisions Omni channel Retail supply chain

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：