the decision of the controllability property of a nonlinear system is still not settled completely. For input-linear systems the well-known Lie algebra rank condition can be used. In this contribution we make use of t...
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ISBN:
(纸本)9798350364309;9798350364293
the decision of the controllability property of a nonlinear system is still not settled completely. For input-linear systems the well-known Lie algebra rank condition can be used. In this contribution we make use of this rank condition to compute the set of not locally controllable points of polynomial dynamical systems by algebraic methods.
this work presents the estimation and control stages of an induction motor. Starting from classical field orientation control scheme, in our approach the unknown state of the system is estimated based on the reduced-o...
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ISBN:
(纸本)9798350364309;9798350364293
this work presents the estimation and control stages of an induction motor. Starting from classical field orientation control scheme, in our approach the unknown state of the system is estimated based on the reduced-order observer, and for control of output variable (the speed rotor) was used two controllers: a robust adaptive controller, and a multiple linear predictive controller, obtained by using linear approximation of the nonlinear model of the considered system. the validity of the proposed estimation and control scheme is illustrated by performed several tests in a simulation environment.
the paper focuses on the design of a controlsystem for an operator with Parkinson's diseases driving an electric vehicle. the fractional order model of a person with Parkinson's disease is discussed. the frac...
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ISBN:
(纸本)9798350364309;9798350364293
the paper focuses on the design of a controlsystem for an operator with Parkinson's diseases driving an electric vehicle. the fractional order model of a person with Parkinson's disease is discussed. the fractional model is extended to the dynamics of an electric car operated by a person with disabilities. the associated mathematical models are analyzed, insisting on the influence of dead times on driving performance. the effects generated by dead times on the visual perception of motion parameters as well as dead times on the generation of a control decision are discussed, times determined by the incapacity of the operator affected by Parkinson's disease. Methods for approximating the dead time dynamics are proposed and the stability of the human-machine system is investigated, as a hierarchical system, using vector Lyapunov techniques. the theoretical results are verified by numerical simulation.
We propose a novel perspective, based on Willems' "behavior theory", on the design of an unknown-input observer for a given linear time-invariant discrete-time state-space model, with unknown disturbance...
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ISBN:
(纸本)9798350364309;9798350364293
We propose a novel perspective, based on Willems' "behavior theory", on the design of an unknown-input observer for a given linear time-invariant discrete-time state-space model, with unknown disturbances affecting boththe state and the output equations. the problem is first addressed assuming that the original system model is known, and later assuming that it is not, but historical data satisfying a certain assumption are available. In both cases, fundamental concepts in behavior theory, as the projection of a behavior, kernel and image representations, provide quite powerful tools to determine necessary and sufficient conditions for the existence of an unknown-input observer (UIO), as well as algorithms to design one of them, if it exists.
this paper presents a blockchain-based platform for managing and issuing academic certificates that features security, transparency, non-repudiation and traceability. Relying on the security provided by Ethereum block...
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ISBN:
(纸本)9798350364309;9798350364293
this paper presents a blockchain-based platform for managing and issuing academic certificates that features security, transparency, non-repudiation and traceability. Relying on the security provided by Ethereum blockchain and using asymmetrical cryptography in certificate generation, combined with certificate revocation mechanisms, the proposed platform offers a reliable, decentralized and secure solution that can be used by academic institutions to streamline the management of academic certificates and reduce bureaucracy.
this paper presents a model-based control strategy for usage in multilevel pressure boosting systems with centrifugal pumps operating in parallel. the control is based on a nonlinear system model using exact input-out...
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ISBN:
(纸本)9798350364309;9798350364293
this paper presents a model-based control strategy for usage in multilevel pressure boosting systems with centrifugal pumps operating in parallel. the control is based on a nonlinear system model using exact input-output linearization. Withthe help of an optimization algorithm, the total consumption flow rate is distributed optimally in such a way that the total hydraulic efficiency of all running pumps is maximized in steady state while complying with all constraints. Trajectories for every single pump are planned on model-based relations in order to reduce overshoots in the pipeline pressure, in particular during start-up processes. the whole control strategy is validated on a test bench.
the proceedings contain 22 papers. the special focus in this conference is on Subject-Oriented Business Process Management. the topics include: Data Mesh: How to Implement the Paradigm Shift;improving Agile Maturity i...
ISBN:
(纸本)9783031720406
the proceedings contain 22 papers. the special focus in this conference is on Subject-Oriented Business Process Management. the topics include: Data Mesh: How to Implement the Paradigm Shift;improving Agile Maturity in Data Teams: A Framework for Enhanced Business Process Agility;Synergizing Data Contracts and BPM to Improve Process Interoperability: An Analysis of Gaps and Opportunities of Data Exchange Agreements in BPM Models;an Aspect-Oriented Extension of the Parallel Activity Specification Schema: A First Draft;how Business Process Modeling Can Benefit from Rhetorical Structure theory;modeling of IoT systems Behavior: A Subject-Oriented Reference Model;Subject-Oriented Modeling Workflow control Patterns with PASS;subject- and Process-Oriented Comparison of Multi-factor Authentication Methods;S-BPM as an Alternative to BPMN in the Context of Low-Code: Applicability, User Experience and Transformation from S-BPM to BPMN;facilitating the Preparation of Life Cycle Assessment through Subject-Oriented Process Modeling: A Methodological Framework;a Framework for Sustainable Web Design in the Era of Digital Transformation;green thoughts and Creative Spaces: An Experimental Study on Influence of Innovation Labs on Productivity and Sustainability of Process Teams;towards Resilient Digital Supply Chains;Walking Away from Omelas: Towards a Comprehensive Model for Successful Adoption of Industry 4.0 Technologies in SMEs;interoperable Product Change Management Within Engineering: A Digital Twin Approach;Next-Generation Business Process Management (BPM): A systematic Literature Review of Cognitive computing and Improvements in BPM;three Stances in Enterprise system Design;process Orientation in Authorities: Opportunities, Challenges and Best Practices;Which Good Practices Minimize Procedural Problems in IT Workflows Between Authorities?;Meta-prompt Engineering in ChatGPT-4 for AI-Generated BPM Reference Models.
this paper presents the latest results of a methodology applied in 2022 and 2023 to a group of Processes and Services Automation students. this course is an elective in the Bachelor's Degree in Electrical Engineer...
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ISBN:
(纸本)9798350364309;9798350364293
this paper presents the latest results of a methodology applied in 2022 and 2023 to a group of Processes and Services Automation students. this course is an elective in the Bachelor's Degree in Electrical Engineering. the methodology is oriented towards professional skills and was developed in collaboration with industry. It is worked by stages that include activities such debate forums, field trips and technical classes. these were complemented with commercial and industrial scale workshops and projects that exposes students to real processes. the results showed that the methodology helped to integrate theory with technical abilities and provided opportunities for students to improve their professional profiles.
Recent advancements in artificial intelligence have led to significant results in various domains, including image classification, natural language processing, and mastering complex games. However, current deep neural...
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ISBN:
(纸本)9798350364309;9798350364293
Recent advancements in artificial intelligence have led to significant results in various domains, including image classification, natural language processing, and mastering complex games. However, current deep neural networks seem to process information differently from humans. Neuro-symbolic methods may offer a promising solution to address this concern. this paper proposes a preliminary cognitive architecture focused on neural cell assemblies, which can combine the adaptability of neural approaches withthe explicit reasoning capabilities of symbolic systems. It presents a case study on learning to count, and highlights mechanisms for learning, generalization, and adaptation based on predictive errors.
Modeling has an important role in systems biology because it can provide a better understanding of biological systems. Advances in biological systems have introduced a series of challenges, such as the repetition of c...
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ISBN:
(纸本)9798350364309;9798350364293
Modeling has an important role in systems biology because it can provide a better understanding of biological systems. Advances in biological systems have introduced a series of challenges, such as the repetition of components (cells), their variation and hierarchical organization. there is a wide variety of modeling approaches, including Petri nets, Brane calculi, and P systems. In this paper we propose an approach based on an object-oriented Petri net formalism, which encodes a category of P systems, denoted by dynamical P systems. In addition, we show the validity of the modeling method by modeling a viral infection process withthe influenza virus.
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