Results 51 to 60 of about 492,550 (353)

Digital Actuation Control of Soft Robotic Origami With Self‐Folding Liquid Crystal Elastomer Hinges

Advanced Functional Materials, EarlyView.
Self‐folding soft‐rigid hybrid robotic origami is enabled by liquid crystal elastomer actuators with embedded Joule heating and closed‐loop digital control. Digitally addressable hinges provide reversible and programmable transitions between distinct folded states while maintaining actuation performance at high cycle counts (over 1500).
David C. Bershadsky, Tuo Zhao, Glaucio H. Paulino, Emily C. Davidson   +3 more
wiley   +1 more source

CFHBA-PID Algorithm: Dual-Loop PID Balancing Robot Attitude Control Algorithm Based on Complementary Factor and Honey Badger Algorithm

Sensors, 2022
The PID control algorithm for balancing robot attitude control suffers from the problem of difficult parameter tuning. Previous studies have proposed using metaheuristic algorithms to tune the PID parameters. However, traditional metaheuristic algorithms
Jianan Lin, Rongjia Zheng, Yirong Zhang, Jinkai Feng, Wei Li, Kaiqing Luo   +5 more
doaj   +1 more source

Robust PID tuning. Application to a Mobile Robot Pathtraking problem. [PDF]

, 2000
IFAC Digital Control: Past,Present and Future of PlO Control.Terrassa.Spain.2000This paper presents a methodology for tuning PIDs considering the nominal performance and the robustness as control specifications.
Alacalá, Ismael, Camacho, Eduardo F., Gómez Ortega, Juan, Normey Rico, Julio Elías   +3 more
core  

Experimental study of predictive control strategies for optimal operation of organic rankine cycle systems [PDF]

, 2015
In this paper the performance of Model Predictive Control (MPC) and PID based strategies to optimally recover waste heat using Organic Rankine Cycle (ORC) technology is investigated.
Hernandez Naranjo, Jairo Andres, Desideri, Adriano, Ionescu, Clara-Mihaela, Quoilin, Sylvain, Lemort, Vincent, De Keyser, Robain   +5 more
core   +2 more sources

SMART SYNTHESIS OF A PID CONTROLLER [PDF]

IFAC Proceedings Volumes, 1991
Abstract A new auto-tuner for PID controllers is described. It combines two commonly taken approaches : analysis of process transient responses and estimation of the process critical point through a relay feedback experiment. The system selects the most appropriate controller among a PI, a PID or a PI regulator coupled with a Smith predictor.
S.E. Sallé, K.J. Åström
openaire   +1 more source

Domain Wall Rebounds Driven by Competing Entropic and Spin‐Transfer Torques in Cylindrical Nanowires

Advanced Functional Materials, EarlyView.
Domain‐wall motion in cylindrical magnetic nanowires driven by nanosecond current pulses. Low current densities efficiently displace domain walls, whereas higher currents cause rebound at the wire ends. The effect results from the interplay between spin‐transfer torque and thermally induced processes, highlighting the role of thermal gradients in ...
Elias Saugar, Jorge Marqués‐Marchán, Sara Catalano, Agustina Asenjo, Michael Foerster, Miguel Angel Niño, Manuel Vazquez, Fèlix Casanova, Arantxa Fraile Rodríguez, Rafael P. Del Real, Oksana Chubykalo‐Fesenko, Cristina Bran   +11 more
wiley   +1 more source

Mathematical modeling and vertical flight control of a tilt-wing UAV [PDF]

, 2012
This paper presents a mathematical model and vertical flight control algorithms for a new tilt-wing unmanned aerial vehicle (UAV). The vehicle is capable of vertical take-off and landing (VTOL).
Aksit, Mahmut Faruk, Akşit, Mahmut Faruk, Cetinsoy, Ertugrul, Gulez, Kayhan, Gülez, Kayhan, Hancer, Cevdet, Hançer, Cevdet, Kandemir, İlyas, Kandemir, Ilyas, Oner, Kaan Taha, Sirimoglu, Efe, Sırımoğlu, Efe, Unel, Mustafa, Çetinsoy, Ertuğrul, Öner, Kaan Taha, Ünel, Mustafa   +15 more
core   +1 more source

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

PID-GM: PID Control with Gain Mapping

CoRR
Proportional-Integral-Differential (PID) control is widely used in industrial control systems. However, up to now there are at least two open problems related with PID control. One is to have a comprehensive understanding of its robustness with respect to model uncertainties and disturbances. The other is to build intuitive, explicit and mathematically
Bo Zhu 0005, Wei Yu, Hugh H. T. Liu
openaire   +2 more sources

Thermally Modulated Metasurface Sensor for Dynamic and Time‐Resolved Isolation of Extracellular Vesicles

Advanced Materials, EarlyView.
A thermally adaptive plasmonic metasurface, functionalized with poly(N‐isopropylacrylamide) (PNIPAM) and anti‐CD63 antibodies, enables precise, on‐demand capture and release of extracellular vesicles (EVs). Delivering high recovery, improved purity, and intact vesicle structure, the platform offers a versatile, label‐free solution for real‐time EV ...
Beyza Nur Kucuk, Eylul Gulsen Yilmaz, Yusuf Aslan, Emre Ece, Özgecan Erdem, Murat Alp Gungen, Bengi Özgün Öztürk, Fatih Inci   +7 more
wiley   +1 more source