Results 81 to 90 of about 46,146,015 (283)

Modified chaotic shift keying using indirect coupled chaotic synchronization for secure digital communication [PDF]

open access: yes, 2010
In this paper, a modified chaotic shift keying method is proposed to transmit digital bits securely over a communication channel. The scheme is based upon encrypting the digital bits 0 and 1 into infinite levels by applying the keystream such that there
Ghassemlooy, Zabih   +5 more
core  

Fully Additive Vertical Organic Electrochemical Transistors on Renewable and Compostable Substrates Enable Ultrasensitive Bioelectronics

open access: yesAdvanced Functional Materials, EarlyView.
Fully additive vertical organic electrochemical transistors (vOECTs) with channel‐length of 226 nm on a 50 µm compostable substrate achieve >106 current modulation and ∼36 mS transconductance. Ion‐selective integration enables 1.1 mA dec−1 sensitivity and 36 µm detection limit, highlighting a scalable platform for sustainable electronics and ...
Giulia Frusconi   +3 more
wiley   +1 more source

Improving Broadcast Channel Rate Using Hierarchical Modulation [PDF]

open access: yes, 2012
We investigate the design of a broadcast system where the aim is to maximise the throughput. This task is usually challenging due to the channel variability.
Méric, Hugo   +4 more
core  

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

Adaptive modulation schemes for optical wireless communication systems [PDF]

open access: yes
High-speed wireless optical communication links have become more popular for personal mobile applications. This is a consequence of the increasing demand from the personal information service boom.
Zeng, Yu
core  

Cross-layer optimization of unequal protected layered video over hierarchical modulation [PDF]

open access: yes, 2009
-unequal protection mechanisms have been proposed at several layers in order to improve the reliability of multimedia contents, especially for video data.
Vazquez Castro, Maria Angeles   +9 more
core   +1 more source

Implantable Ionic Memristors Based on Natural Polymer Heterojunctions

open access: yesAdvanced Functional Materials, EarlyView.
We report an implantable natural polymer‐based ionic memristor composed of hyaluronic acid, chitosan, and PDMS. The device achieved 98.94% accuracy in MNIST classification while reducing training time by 36.8% compared with a conventional artificial neural network (ANN).
Dong‐yup Lee   +6 more
wiley   +1 more source

Biodegradable and Biocompatible Functional Polymers for Biomedical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han   +5 more
wiley   +1 more source

Study on method of distinguishing influence factors for vector modulation errors measurement

open access: yesTongxin xuebao, 2012
In order to distinguish between the intrinsic modulation errors of vector signal generator and the measurement errors of vector signal analyzer,a method based on experimental measurement and analytical calculation was proposed,then numberical simulation ...
Hong FANG, Xin ZHOU, Ke LIU, Xin BIAN
doaj   +2 more sources

Multimode Oxide‐Based Optoelectronic Memtransistor for In‐Sensor Vision Processing

open access: yesAdvanced Functional Materials, EarlyView.
A multimode optoelectronic memtransistor (OEMT) is demonstrated for vision explainable artificial intelligence (VXAI) hardware. By integrating optical sensing, electrical masking, and non‐volatile memory, the device enables key operations required for generating saliency information.
Min Gu Lee   +10 more
wiley   +1 more source

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