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14th International Conference on Information Society and Technology, ICIST 2024

作者： da Rocha, Luiz Gustavo Schitz Rudek, Marcelo Pontifical Catholic University of Parana PUCPR Production and System Engineering Graduate Program – PPGEPS Curitiba Brazil

ISBN: (纸本)9783031714184

This paper proposes a solution for markerless gait analysis based on point cloud data, which are three-dimensional data obtained by sensors such as LiDAR, that can capture body movements in real-time and in various environments. Gait analysis aims to evaluate the differences in symmetry between the left and right sides of the body, which can indicate diseases such as Parkinson’s and Alzheimer’s. The point cloud is a sparse matrix with N points in 3D space and the intensity of reflected light, which does not have an ordering between the points and the minimum distance between them is responsible for the density of the cloud. In the proposed method the point cloud is transformed into voxels, which are cubic units that facilitate data processing, and each set of points in the voxel is used for person detection. The points of the person are used to segment the body parts, and each part is used to estimate the joint position. The joint position is used to construct a rigid body model, where a person is represented by their segments. The rotations and translations of the segment over time are used to build the gait analysis graph. By comparing the rotation of each segment over time, it is possible to calculate the difference between the left and right sides and detect at what moment of the movement the difference is large enough to indicate the onset of pathology. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.

关键词： Neurodegenerative diseases

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Weblab of a control experiment in a newborn baby incubator 12

Weblab of a control experiment in a newborn baby incubator

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2015 12th International Conference on Remote engineering and Virtual Instrumentation, REV 2015

作者： Bauer, Karine Mendes, Luciano Antonio Systems and Production Engineering Graduate Program-PPGEPS Pontifical Catholic University of Parana Curitiba Brazil

ISBN: (纸本)9781479978397

WebLabs, or Remotely Operated Laboratories, allow for remote control and monitoring of interactive or batched systems with educational objectives. Considered as additional resources in education, they contribute to a flexible learning model and make possible for students to perform laboratory experiments remotely, off-class, in collaboration, thus contributing to the reduction of laboratory equipment idleness. The purpose of this paper is to report steps in designing and enabling a WebLab with background theme on the control and monitoring of thermal comfort parameters in a newborn baby incubator. Three didactical experiments can be performed in this WebLab: transfer function evaluation, on-off control and PID controller tuning, with users challenged to optimally tune the parameters of a controller algorithm. In the end of the session, the user can enter his/her impressions regarding the WebLab usage by answering a questionnaire. The WebLab design includes the evaluation of students' abilities through performance indexes while keeping operation within the requirements of an associated medical safety standard. A systematic approach for the WebLab design process has been employed, with the system design split in three layers: physical system, hardware and software. Sets of qualitative and quantitative requirements to be attended were defined. system and product design techniques, such as House of Quality, Morphological Matrix and Pugh's Method, have been employed to address the conversion of the project requirements into the Weblab overall solution. Virtual Instrumentation resources have been used to acquire temperature, humidity and air speed signals. The LabVIEW platform was used to support experiment integration and to create the user interface using LabVIEW Remote Panel architecture. The WebLab has been successfully implemented and presently can be accessed within the university network. © 2015 IEEE.

关键词： Students

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Anatomic prosthesis modelling based on descriptors by Cubic Bézier Curves 45

Anatomic prosthesis modelling based on descriptors by Cubic ...

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45th International Conference on Computers and Industrial engineering, CIE 2015

作者： Rudek, M. Gumiel, Y.B. Canciglieri, O. Bichinho, G.L. Da Silveira, M. Production and System Engineering Graduate Program - PPGEPS Brazil Graduate Program in Health Technology - PPGTS Pontifical Catholic University of Parana Brazil Luxembourg Institute of Science and Technology LIST Luxembourg

This paper presents a method based on image analysis to build models of the skull prosthesis as a premanufacturing process. The method is based on Cubic Bezier Curves as descriptors of the skull bone curvature. The method performs a symbolic representation of shape in order to define the geometric parameters to fit an arc on each Computed Tomography slice. The Bezier descriptors can be used as a template for the retrieval of similar images from medical databases whose parameters match the sampled image. The similarity is measured according to the best fitness values through ABC (Artificial Bee Colony) optimization algorithm. The slices found by similarity are retrieved from different skull images in order to build the 3D model. The 3D printing parameters can be based on images extracted from different medical images to mold a customized piece. A case study shows that the proposed method is a promising technique for 3D modelling.

关键词： Prosthetics

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Skull failure-correction modelling method by symmetry mirroring 45

Skull failure-correction modelling method by symmetry mirror...

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45th International Conference on Computers and Industrial engineering, CIE 2015

作者： Rudek, M. Mendes, G.C. Canciglieri, O. Da Silveira, M. Production and System Engineering Graduate Program PPGEPS Pontifical Catholic University of Parana - PUCPR Curitiba Brazil Luxembourg Institute of Science and Technology - LIST Luxembourg

This current work presents a proposal of a method for anatomical prosthesis modelling in order to generate the geometric parameters for the implants manufacturing. The concept of this proposed method is to fill the skull bone failure with the individual own skull shape by symmetric mirroring, from its non-affected opposed bone area. By using its own shape our main goal is to respect and preserve the individual morphology. A software prototype was developed as a plug-in at the Java based image processor (ImageJ) in order to generate a virtual 3D modelled anatomical prosthesis by applying all the proposed procedures. We apply the method upon a lateral skull failure as study case in order to demonstrate all the process and to discuss the evaluation of results.

关键词： Computer aided design

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Current scenario and potential of waste cooking oil as a feedstock for biodiesel production in Indonesia: Life cycle sustainability assessment (LCSA) review

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Case Studies in Chemical and Environmental engineering 2025年 11卷

作者： Rahman, Arif Oktaufik, M.A.M. Sasongko, Triyono Widi Guntoro, Iwan Soedjati, Dadi Abbas, Najmi Rahman, Abdul Ulfah, Fathiah Widiarto, Ari Siswanto Dharmawan Trihadi, Sudarwaji Edi Yuwono Kusrestuwardani Prihatin, Anggara Lomak Hadi, Adim Indrijarso, Surat Rahardjo, Priyambodo Barkah, Arief Febijanto, Irhan Sasongko, Nugroho Adi Research Center for Sustainable Production System and Life Cycle Assessment National Research and Innovation Agency – BRIN Indonesia Department of Mechanical Engineering Faculty of Engineering Universitas Esa Unggul Jakarta Indonesia Principal Expert of the Steering Board National Research and Innovation Agency - BRIN Indonesia Energy Security Graduate Program Republic of Indonesia Defense University (UNHAN RI) IPSC Sentul Area West Java Bogor 16810 Indonesia

WCO is a second-generation biofuel made up of accumulated free fatty acids, which can be used as feedstock for biodiesel production. The review aims to: (a) evaluate the sustainability of waste cooking oil (WCO) for biodiesel production in Indonesia using life cycle sustainability assessment (LCSA) methods;(b) explain the challenges, development, recommendation, and industrial potential of WCO for biodiesel production in Indonesia;and (c) determine the sustainability concept of WCO for biodiesel production. This study was carried out by reviewing papers related to LCSA which include Life Cycle Assessment (LCA), Life Cycle Cost Analysis (LCCA), and Social Life Cycle Assessment (SLCA). The review found that the WCO collection, pretreatment, and transesterification processes have the biggest environmental impact caused by the use of chemicals, catalysts, and electrical energy from fossil fuels. According to the LCCA results, WCO-based biodiesel production has a high economic potential and is more practicable due to lower raw material and production costs than biodiesel from edible and non-edible plants. Meanwhile, the SLCA aspect emphasizes that the WCO-based biodiesel industry must consider social indicators such as employment provision, human rights, human health impact, working conditions, local community impact, cultural heritage, socio-economic repercussions, governance, and large accident risk. There are several recommendations that can be made to develop WCO-based biodiesel, namely the government must demonstrate political commitment by promoting WCO as a national energy source feedstock. The sustainable concept has three pillars: environmental, economic, and social. These pillars must simultaneously direct every stage of the WCO production process. To produce high-quality biodiesel, the government must support all of these stages, establish regulations and governance for WCO supply and the WCO processing industry, and provide implementable R&D, adequate funding

关键词： Biodiesel Life cycle assessment Life cycle cost analysis Life cycle sustainability assessment Social life cycle assessment Waste cooking oil

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Proposal of a methodology for implementation of service operations strategies in business projects 23

Proposal of a methodology for implementation of service oper...

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23rd International Conference for production Research, ICPR 2015

作者： Munik, J. Pinheiro De Lima, E. Costa, S.E.G. Graduate Program in Production Engineering and Systems - PPGEPS Pontifical Catholic University of Paraná - PUCPR Imaculada Conceição Street 1155 Curitiba Paraná Brazil Graduate Program in Production Engineering and Systems - PPGEPS Federal Technological University of Paraná Av. Sete de Setembro 3165 Curitiba Paraná Brazil

Strategies when unfolded through a systematic methodology, can ensure a greater probability of positive return for organizations such as increased quality and reduced production costs. In this paper, it will be presented the development of a systematic methodology for Strategic Management of Operations, with the objective of proposing the construction and refinement of a conceptual model used to develop Strategies. The organizations used in the research sample are characterized to be in the area of Service Operations in Project regimes. This methodology can optimize the use of a correct approach to the processes of development of Strategies, with more accurate monitoring of all stages of implementation. Finally, the study allows us to analyze the application of the methodology, checking its academic contributions and the results of the case studies analyzed.

关键词： Strategic planning

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Mapping the Conceptual Relationship among Data Analysis, Knowledge Generation and Decision-making in Industrial Processes

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Procedia Manufacturing 2017年 11卷 1751-1758页

作者： dos Santos, Cleiton Ferreira Piechnicki, Flávio de Freitas Rocha Loures, Eduardo Santos, Eduardo Alves Portela Pontifical Catholic University of Paraná (PUC-PR) Graduate Program in Production and Systems Engineering (PPGEPS) 1155 Imaculada Conceição Street Curitiba 80215-901 Brazil

In accordance with Industry 4.0, data should be used for process and/or system integration, including the decision-making process. In this context, this paper aims to relate the process of decision-making with process mining through concept maps, assisting the areas of Data engineering and Analytics. To do so, some Multiple-Criteria Decision-Making/Analysis (MCDM/A) methods will be addressed in order to conceptually highlight the relationship between knowledge and decision dimensions. As a result, the definitions about these fields of study allow perceiving an information and knowledge conciliation approach promoted by the integrated view of process mining and MCDM/A methods. © 2017 The Authors

关键词： Concept Map Industry 4.0. Knowledge Discovery Multiple-Criteria Decision-Making/Analysis (MCDM/A) Process Mining (PM)

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A diagnosis framework of hybrid dynamic systems based on time fuzzy petri nets

A diagnosis framework of hybrid dynamic systems based on tim...

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作者： Loures, E. Rocha Pascal, J.C. Laboratory for Analysis and Architecture of Systems Toulouse France Graduate Program in Production System Engineering Curitiba Brazil

ISBN: (纸本)008045108X

This paper presents a diagnosis framework based on a qualitative model of the process. Starting from a dynamic abstraction procedure under a defined operating mode a fuzzy partitioning of the variables evolution is made, defining for each measured or observable variable a number of qualitative states. Then time Fuzzy intervals representing the moment of state change are defined. The process behaviour of the operating mode is represented by Time Fuzzy Petri nets (TFPN) model and its evolution is the consequence of events detection due to the partitioning bounds crossing. According to the membership possibility of an event to the estimated time interval and to fuzzy influence knowledge, it is possible to reason about a fault occurrence. The fuzzy data issue from the TFPN components allows evaluating the causes of the fault or failure mode. A model-based diagnosis of a hybrid system is presented. Copyright © 2005 IFAC.

关键词： Hybrid systems

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Analysis Hierarchy Process In Real Problem Resolution In A Food Company 4

Analysis Hierarchy Process In Real Problem Resolution In A F...

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4th International Conference on Chemical engineering and Advanced Materials, CEAM 2014

作者： Mazia Rosa, Carla Regina Arnssteiner, Maria Teresinha Colmenero, JoãO Carlos PUCPR - Pontifical Catholic University of Paraná PPGEPS - Graduate Program in Production Engineeringand Systems R.ImaculadaConceição 1155 Curitiba Brazil PUCPR - Pontifical Catholic University of Paraná PPGEPS - Graduate Program in Production Engineeringand Systems R.ImaculadaConceição 1155 Curitiba Brazil UTFPR - Technological University Federal do Paraná - Campus Ponta Grossa PPGEP - Graduate Program in Production Engineering Av. Monteiro Lobato PontaGrossa Brazil

ISBN: (纸本)9783038352693

One of the most important aspects to be considered by Distribution Centers (DCs) is the improvement of the process in relation to the attributes of the service that is provided. The purpose of this article is to analyze various alternatives for the definition of a DC with the use of a method of multi-criteria support in decision making, more specifically, the Analytic Hierarchy Process (AHP) for the allocation and weighting of importance levels for structuring DCs. To further illustrate the process, a field study was conducted in a multinational company in the food sector. This enabled the identification of the best of three possible structures that were evaluated based on the criteria and sub-criteria targeted in the decision context. The results show that the cost and quality factors are primarily responsible for choosing the most appropriate alternative. © (2014) Trans Tech Publications, Switzerland.

关键词： Analytic hierarchy process

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

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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

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