This paper first discusses the problems that arise in the propagation of acoustic waves and on factors that actively cancel unwanted acoustic waves. It focuses also on the insurmountable obstacles that arise in the ph...
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ISBN:
(数字)9798331525774
ISBN:
(纸本)9798331525781
This paper first discusses the problems that arise in the propagation of acoustic waves and on factors that actively cancel unwanted acoustic waves. It focuses also on the insurmountable obstacles that arise in the physical realization of devices meant to perform that. Some of the current approaches employed to address the aforementioned issues are discussed. Active noise cancellation (ANC) systems are electronic devices that use a loudspeaker to deliver a different wave in order to attenuate unwanted acoustic noise waves until both are cancelled. Because the controlled acoustic noise wave propagation process is highly unstable (can change anytime noise wave properties, noise wave source position, or listener), we currently use adaptive controlsystems to solve these problems. We cannot use a standard PID controller because it must adjust its parameters to unknown or changing processes, which entails further challenges. Additionally, we suggest a previously mentioned approach to gain a deeper understanding of controlled processes, which might potentially replace adaptive control. The technique involves determining the wavefront shape, which is then used to determine the wavefront shape of acoustic noise through propagation. This will lessen the unidentified controlled process. The synthesized anti-noise wave will reproduce a similar wavefront shape like noise wave.
This article addresses the model-and data-based event-triggered consensus of heterogeneous leader/follower multi-agent systems(MASs). A dynamic periodic transmission protocol is developed to alleviate the communicatio...
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This article addresses the model-and data-based event-triggered consensus of heterogeneous leader/follower multi-agent systems(MASs). A dynamic periodic transmission protocol is developed to alleviate the communication and computational burden, where the followers can interact locally with neighbors to approach the dynamics of the leader. Capitalizing on a discrete-time looped-functional, a model-based consensus condition for the closed-loop MASs is derived as linear matrix inequalities(LMIs), along with a design method for obtaining distributed event-triggered controllers and the associated triggering *** collecting noise-corrupted state-input measurements in offline open-loop experiments, a data-based leader/follower MAS representation is derived and employed to address the data-driven consensus control problem without explicit MAS models. This result is subsequently generalized to guarantee an H∞-consensus control performance. Finally, a simulation example is given to corroborate the efficiency of the proposed distributed triggering scheme and the data-driven consensus controller.
The purpose of this paper is to highlight how HACCP can be applied to software engineering quality assurance. Teams may proactively handle quality concerns and produce software that is more dependable, secure, and of ...
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ISBN:
(数字)9798331525774
ISBN:
(纸本)9798331525781
The purpose of this paper is to highlight how HACCP can be applied to software engineering quality assurance. Teams may proactively handle quality concerns and produce software that is more dependable, secure, and of a higher caliber by implementing HACCP's methodical approach to hazard identification, important control points, monitoring, and corrective actions. Setting goals and outlining the operational procedures and resources required to meet quality standards are essential in software engineering. An example of the application of HACCP principles in software engineering is shown by a high-level Jira board that shows a parking application.
Semi-Markov jump systems(S-MJMs) not only characterize hybrid systems but also address the limitations of Markov jump systems(MJMs) [1–3]. Due to their ability to exhibit multi-time-scale features, singularly perturb...
Semi-Markov jump systems(S-MJMs) not only characterize hybrid systems but also address the limitations of Markov jump systems(MJMs) [1–3]. Due to their ability to exhibit multi-time-scale features, singularly perturbed models(SPMs) effectively model practical systems influenced by multiple time-scale phenomena [4]. In this study, the observer-based output feedback controller is asynchronous with the original system due to the time delay in the controller mode switching. A nonlinear plant with singularly perturbed parameters(SPPs) is represented using an interval type-2(IT2) fuzzy model [5].
This paper provides three Petri Nets models used in industrial processes. The Petri Nets have many application areas, but these models are with applications from the industrial domain (cement industry, bikes manufactu...
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ISBN:
(数字)9798331525774
ISBN:
(纸本)9798331525781
This paper provides three Petri Nets models used in industrial processes. The Petri Nets have many application areas, but these models are with applications from the industrial domain (cement industry, bikes manufacturing and sweets branch). Based on the mathematical model, the simulation models were developed. As a consequence of the analysis, the models have been validated.
This article presents an optimized control strategy tailored for DC islanded microgrids, featuring a voltage controller based on mixed H2/H∞ state feedback using linear matrix inequalities (LMIs) and a power controll...
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The work presents the advantages of the using of Internet of Things and Amazon Web Services facilities for remote control and supervise some devices. In this context, it is shown a modern method of acquiring and monit...
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ISBN:
(数字)9798331525774
ISBN:
(纸本)9798331525781
The work presents the advantages of the using of Internet of Things and Amazon Web Services facilities for remote control and supervise some devices. In this context, it is shown a modern method of acquiring and monitoring data, measured with the help of sensors, data that are processed by a microcontroller, displayed on a mini-display LCD and then published on the Amazon Web Services (AWS) platform with the help of the Internet of Things (IoT) concept. For the practical implementation of the data acquisition and monitoring system, a humidity and temperature sensor, connected to a RaspberryPi board was used.
The work presents some techniques using MySQL Workbench and Amazon AWS RDS service applied for creating and querying MySQL databases. In this context, it is shown a way to querying a DB instance from a EC2 instance wi...
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ISBN:
(数字)9798331525774
ISBN:
(纸本)9798331525781
The work presents some techniques using MySQL Workbench and Amazon AWS RDS service applied for creating and querying MySQL databases. In this context, it is shown a way to querying a DB instance from a EC2 instance with Ubuntu virtual machine with SQL commands. For the practical implementation of the database MySQL Workbench was used.
The purpose of this article is to perform a comparison between two identification models: a nonlinear one referred to as HARMAX and a classical linear one, of Box-Jenkins (BJ) type. The first model modifies a classica...
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This research focuses on a novel algorithm for Reinforcement Learning (RL) in Regular Decision Processes (RDPs), a model of non-Markovian decision processes where dynamics and rewards depend on regular properties of t...
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