Sanz Díaz, Ricardo; García Gil, Pedro José; Zhong, Qing-Chang; Albertos Pérez, Pedro(American Society of Mechanical Engineers (ASME), 2016-07)
In this paper, a robust control strategy is proposed to control the attitude and the altitude of quadrotors, based on an uncertainty and disturbance estimator (UDE). It is shown that the proposed controller can be tuned ...
Sanz Díaz, Ricardo(Universitat Politècnica de València, 2018-10-30)
Los sistemas con retardo temporal aparecen con frecuencia en el ámbito de la ingeniería, por ejemplo en transmisiones hidráulicas o mecánicas, procesos metalúrgicos o sistemas de control en red. Los retardos temporales han ...
Sanz Diaz, Ricardo; García Gil, Pedro José; Albertos Pérez, Pedro; Zhong, Qing-Chang(John Wiley & Sons, 2017-07-10)
[EN] This paper deals with the problem of stabilizing a class of input-delayed systems with (possibly) nonlinear uncertainties by using explicit delay compensation. It is well known that plain predictive schemes lack ...
[EN] In recent years, there is a trend toward the construction of sustainable structures. The goal of sustainability in structures involves several criteria that are normally opposed, leading to a decision-making process. ...
[EN] The design of a structure is generally carried out according to a deterministic approach. However, all structural problems have associated initial uncertain parameters that can differ from the design value. This becomes ...
[EN] The adoption of LoRaWAN as a technology for wireless deployments in many applications, such as smart cities or industry 4.0, still presents challenges such as energy consumption, robustness, or reduced throughput in ...
[EN] In Chile, the Ministry of Education of Chile (MINEDUC) provides resources to the various educational institutions in the country based on a budget estimation model, where the "attendance of students" is the main ...
Sáiz Rubio, Verónica; Rovira Más, Francisco; CHATTERJEE, ISHANI; Molina Hidalgo, Jose Mª(Sciedu Press, 2013)
The multiple benefits of automating steering in agricultural vehicles have resulted in various autoguidance systems commercially available, most of them relying on satellite-based positioning. However, the fact that farm ...
[EN] Widely used simplified analytical methods for estimating the tensile force in tie-rods are clearly not applicable when they contain significant discontinuities or irregularities. A common example for which this fact ...
[EN] Background and objective: The Baby-Friendly Hospital Initiative (BFHI) is an international strategy aimed at improving breastfeeding practices in health care services. Regular monitoring of indicators is key for BFHI ...
Currently, cell culture systems that include nanoscale topography are widely used in order to provide cells additional cues closer to the in vivo environment, seeking to mimic the natural extracellular matrix. Electrospinning ...
[EN] Convective drying is a common process for the treatment of particulate solids also operated in continuous mode. Continuous operation is characterised by operation in steady-state with constant product throughput and ...
Muñoz-Benavent, Pau; Gracia Calandin, Luis Ignacio; Solanes Galbis, Juan Ernesto; Esparza Peidro, Alicia; Tornero Montserrat, Josep(Elsevier, 2018-02)
[EN] In this work, an approach based on sliding mode ideas is proposed to satisfy constraints in robot visual servoing.
In particular, different types of constraints are defined in order to: fulfill the visibility constraints ...
Marco, O.; Ródenas, J.J.; Navarro-Jiménez, J.M.; Tur Valiente, Manuel(Elsevier, 2017)
[EN] Geometry plays a key role in contact and shape optimization problems in which the accurate representation of the exact geometry and the use of adaptive analysis techniques are crucial to obtaining accurate ...
García Fernández, Alberto(Universitat Politècnica de València, 2023-10-20)
[ES] La presente tesis aborda la Interacción Humano-Robot para tareas industriales de tratamiento superficial, con el objetivo de obtener una verdadera sinergia entre el operador humano y el sistema robotizado, así como ...
[EN] Organic-inorganic hybrid perovskites have gained great attention as promising photocatalysts for hydrogen generation. However, due to their poor stability in water, the use of aqueous hydrohalic acid solutions is ...
Solanes Galbis, Juan Ernesto; Gracia Calandin, Luis Ignacio; Muñoz-Benavent, Pau; Valls Miro, Jaime; Perez-Vidal, Carlos; Tornero Montserrat, Josep(ASME International, 2019)
[EN] This work presents a hybrid position-force control of robots for surface polishing using task priority. The robot force control is designed using sliding mode ideas in order to benefit from its inherent robustness and ...
Herrero Durá, Juan Manuel; Blasco, Xavier; Martínez Iranzo, Miguel Andrés; Ramos Fernández, César; Sanchís Saez, Javier(Elsevier, 2008)
[EN] This paper presents the non-linear modelling, based oil first principle equations, for a climatic model of a greenhouse and the estimation of the feasible parameter set (FPS) when the identification error is bounded ...
Sajjad, Muhammad; Ul Haq, Ijaz; Lloret, Jaime; Ding, Weiping; Muhammad, Khan(Institute of Electrical and Electronics Engineers, 2019-12)
[EN] Due to large volume and high variability of editing tools, protecting multimedia contents, and ensuring their privacy and authenticity has become an increasingly important issue in cyber-physical security of industrial ...
[EN] For a long time, the measurement of innovation has been at the forefront of policymakers' and researchers' agenda worldwide. Therefore, there is an ongoing debate about which indicators should be used to measure ...