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Abstract Identifying nonlinear interactions among magnons is crucial for advancing the field of magnonics and developing next-generation spintronic devices. In this work, we report the experimental observation of nonline...

This paper presents an innovative methodology for modeling and predicting high-frequency harmonic losses in the rotating field of an electrical machine powered by a frequency converter. Conventional approaches are often ...

In the present paper, the performance of monolithic catalysts obtained from a catalytic converter was analyzed in the partial hydrogenation of sunflower oil. The monoliths were reimpregnated with palladium and installed ...

Resumo As metrópoles brasileiras estão passando por grandes transformações. As periferias se converteram em situações críticas, onde conflitam diferentes políticas públicas, assentamentos de moradia precária e ...

Manipulating on-chip optical modes via components in analogy with free-space devices provides intuitional light control, and this concept has been adopted to implement single-lens–assisted spot size conversion using in...

Optical phased arrays (OPAs) hold significant promise for low-cost, solid-state beam steering in LiDAR and free-space optical (FSO) communications. The field of view (FOV) is one of the key performance metrics in OPA for...

Resumo: Dois agentes de mediação na luta pela terra se destacaram no período de democratização da sociedade brasileira: a Comissão Pastoral da Terra (CPT) e o Movimento de Trabalhadores e Trabalhadoras Rurais Sem T...

Based on maintenance data from over 1000 onshore and offshore wind turbines covering more than 4200 operating years, this study presents an analysis of failure rates, repair times, and maintenance resource requirements, ...

Due to the issues of low throughput and low time synchronization accuracy when traditional power timing terminals transmit communication data, a power timing terminal for novel power system communication network security...

In higher education, integrating language development with technical instruction has become an increasingly important challenge, particularly in Algerian electronics education. Therefore, this paper demonstrates the deve...

Terahertz (THz) waves have been widely hailed as a key enabling technology for future sixth generation (6G) wireless networks. Dynamic modulation of their polarization states is of great attraction for high-capacity comm...

En esta tesis se realiza un estudio para reducir el número de medidores que se necesitan para implementar controladores en convertidores AC-DC. Además, se investiga la aplicación de estrategias de control no lineal co...

En esta tesis se realiza el estudio del convertidor multinivel con enclavamiento por diodos. Se presenta un algoritmo generalizado para el control del balance de las tensiones del bus de continua del convertidor que no r...

"En esta tesis se realiza el análisis de una topología de Convertidor Multinivel Fuente de Corriente (MCSI) modular. Se analiza detalladamente el funcionamiento de la topología y se formula el marco matemático teóri...

"In this paper, a Model Predictive Control (MPC) strategy is applied to a Multilevel Current Source Inverter (MCSI) and its associated current source. The controller uses a discrete-time model of the entire system in ord...

Conventional approaches to sampling signals or images follow Shannon's theorem: the sampling rate must be at least twice the maximum frequency present in the signal (Nyquist rate). In the field of data conversion, standa...

In order to find an upper theoretical limit for the efficiency of p-n junction solar energy converters, a limiting efficiency, called the detailed balance limit of efficiency, has been calculated for an ideal case in whi...

A mathematical tool to build a fuzzy model of a system where fuzzy implications and reasoning are used is presented in this paper. The premise of an implication is the description of fuzzy subspace of inputs and its cons...

Materias / palabras clave: power converter topologies and design, electrical machines, modeling, renewable energy systems, smart grids, energy conversion; Technology: Electrical engineering. Electronics. Nuclear engineering