Results 31 to 40 of about 1,006,239 (296)

Super Twisting Disturbance Observer-Based Fixed-Time Sliding Mode Backstepping Control for Air-Breathing Hypersonic Vehicle

IEEE Access, 2020
This paper investigates the velocity and altitude tracking control problem for air-breathing hypersonic vehicle (AHV) under external disturbances and uncertainties.
Yunjie Wu, Fei Ma, Xiaocen Liu, Yueyang Hua, Xiaodong Liu, Guofei Li   +5 more
doaj   +1 more source

Olografia e sistemi di comunicazione avanzati per i sotterranei del Castello di Otranto

Archeomatica, 2017
The latest frontiers of holography and the use of beacon communication systems provide new models of exploitation and enjoyment of cultural heritage goods.
Fernando Cesaria, Francesco Argese, Italo Spada, Giuseppe De Prezzo, Corrado Pino   +4 more
doaj   +5 more sources

A Video-Based Cognitive Emotion Recognition Method Using an Active Learning Algorithm Based on Complexity and Uncertainty

Applied Sciences
The cognitive emotions of individuals during tasks largely determine the success or failure of tasks in various fields such as the military, medical, industrial fields, etc.
Hongduo Wu, Dong Zhou, Ziyue Guo, Zicheng Song, Yu Li, Xingzheng Wei, Qidi Zhou   +6 more
doaj   +1 more source

Interface Based on Electrooculography for Velocity Control of a Robot Arm

Applied Bionics and Biomechanics, 2010
This paper describes a technique based on electrooculography to control a robot arm. This technique detects the movement of the eyes, measuring the difference of potential between the cornea and the retina by placing electrodes around the ocular area ...
Eduardo Iáñez, José M. Azorín, Eduardo Fernández, Andrés Úbeda   +3 more
doaj   +1 more source

Fixed-Time Disturbance Observer-Based Adaptive Finite-Time Guidance Law Design considering Impact Angle Constraint and Autopilot Dynamics

Complexity, 2021
This paper aims to establish an effective guidance law to accomplish the interception guidance mission for a missile intercepting a target with impact angle constraint and autopilot dynamics.
Yunjie Wu, Fei Ma, Xiaofei Yang, Siqi Wang, Xiaodong Liu   +4 more
doaj   +1 more source

Virtual Reality Rhythm Game [PDF]

, 2017
Virtual reality headsets such as the HTC Vive and Oculus Rift bring robust virtual reality technology in the hands of consumers. However, virtual reality technology is still a very new and unexplored domain with a dearth of compelling software that takes
Lai, Jordan, Yi, Joshua
core   +1 more source

Virtual reality: Theoretical basis, practical applications [PDF]

, 1993
Virtual reality (VR) is a powerful multimedia visualization technique offering a range of mechanisms by which many new experiences can be made available.
Barker, Philip
core   +3 more sources

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

FEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini, Nicolò Antonelli, Gianluca Molla   +2 more
wiley   +1 more source

Active electronic skin: an interface towards ambient haptic feedback on physical surfaces

npj Flexible Electronics
In the era of ubiquitous computing with flourished visual displays in our surroundings, the application of haptic feedback technology still remains in its infancy.
Yuan Guo, Yun Wang, Qianqian Tong, Boxue Shan, Liwen He, Yuru Zhang, Dangxiao Wang   +6 more
doaj   +1 more source

Multiple-Echo Suppression Modeling and Experimental Verification for Acoustic Transmission along Periodic Drillstring Using Dual Receivers

Shock and Vibration, 2014
In the oil industry, the accompanied reverberation is a major constraint in the transmission rate and distance because the drillstring is a heterogeneous assembly.
Li Cheng, Chang Jinfeng, Liu Zhao, Fan Shangchun   +3 more
doaj   +1 more source