As a result of the COVID-19 pandemic, an unprecedented crisis has been generated in all areas of life. In education, this emergency led to the massive closure of face-to-face activities in educational institutions of ...
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ISBN:
(纸本)9798350320503
As a result of the COVID-19 pandemic, an unprecedented crisis has been generated in all areas of life. In education, this emergency led to the massive closure of face-to-face activities in educational institutions of all levels to prevent the spread of the virus and mitigate its impact. In response to this situation, nine public research centers of the National Council of science and Technology (CONACYT) of Mexico, CIDETEQ, CIATEJ, CIATEQ, CIESAS, CIMAV, CIO, CIQA, COMIMSA, and ECOSUR, proposed a project through which a set of virtual laboratories would be established, both for teaching and to improve their technological infrastructure for teaching. The project would take advantage of the tools of Information and Communications Technologies (ICTs) that allow remote access, which is the main challenge to develop educational tools that provide for distance education, and give continuity to graduate programs.
Voltage-current double closed-loop control, based on the d-q coordinate system, is a widely employed linear control strategy for single-phase PWM rectifiers. However, it inherently represents a nonlinear system. To ad...
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In the field of structured light 3D reconstruction, unfolding the wrapped phase obtained by the phase shift method to get the absolute phase is crucial. The traditional process of unfolding phase row by row and column...
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This paper addresses the issue of buoyancy variation caused by differences in seawater density at varying operational depths for small AUVs working within 200 meters. To tackle this, a buoyancy adjustment system is de...
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In this paper, we study the optimization of energy consumption for data collection in UAV-assisted wireless sensor networks (WSNs) under the uplink single-carrier non-orthogonal multiple access (NOMA) approach. The to...
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Human detection is essential in areas like security surveillance, healthcare, and behavior analysis. While traditional RGB-based methods are effective, they raise significant privacy concerns by exposing personal iden...
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Intelligent manufacturing systems require real-time optimization algorithms for daily operations management. Scheduling rules have been proven to be efficient and commonly used in plenty of practical production scenar...
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ISBN:
(数字)9781665490429
ISBN:
(纸本)9781665490429
Intelligent manufacturing systems require real-time optimization algorithms for daily operations management. Scheduling rules have been proven to be efficient and commonly used in plenty of practical production scenarios, especially for the large-scale problems. However, almost all the scheduling rules are manually designed, which is time consuming and also results in the large loss of accuracy for complex problems. This paper proposes a new simulation optimization-aided learning method, denoted by SOaL, for design automation of scheduling rules. The proposed SOaL method treats the automated design of scheduling rules as a simulation optimization problem, where we use genetic programming algorithm to guide the rule generation and introduce ranking and selection algorithm to improve the rule evaluation accuracy. Using dynamic job shop scheduling problem as the simulation testbed, numerical results show the superiority of the proposed method.
Aiming at the control problem of USV formation dragging underpowered objects on water, this paper combines virtual structure and distributed predictive control algorithm. The virtual structure is used to ensure the st...
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The accurate core losses model building under high-frequency PWM voltage excitation with DC bias is study in this paper. The DC power method is adopted to precisely measure core losses under PWM waveform with DC bias ...
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Robotic arms are widely used in fields such as national defense construction, industrial manufacturing, and home services. However, there are many problems in the application of robotic arms in identifying and positio...
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