Results 101 to 110 of about 6,742,680 (324)

Advances in Sustainable and Wearable Textile Based Soft Robotics

Advanced 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, Marzia Dulal, Sophia K. Novoselov, Victoria K. Novoselov, Kostya S. Novoselov, Shaila Afroj, Nazmul Karim   +6 more
wiley   +1 more source

On a method to improve correlation properties of orthogonal polyphase spreading sequences

Journal of Telecommunications and Information Technology, 2003
In this paper, we propose a simple but efficient method for improving correlation properties of polyphase spreading sequences for asynchronous direct sequence code division multiple access (DS CDMA) applications.
Beata J. Wysocki
doaj   +1 more source

Bio‐Inspired Artificial Ionic Mechanoreceptor

Advanced Functional Materials, EarlyView.
A skin‐inspired artificial mechanoreceptor based on ionic interactions is presented for biomimetic tactile sensing. Pressure‐driven ionic redistribution within microfluidic channels generates a self‐powered electrical signal without external bias. The generated waveform exhibits mechanoreceptor‐like temporal features, including overshoot and undershoot,
Mohammad Akbari, Jeppe Don, Lasse A. N. Pedersen, John Noee, Rassoul Tabassian   +4 more
wiley   +1 more source

A Novel Architecture for M-FSK /DS Spread Spectrum Communication System

Anbar Journal of Engineering Sciences
The proposed communication system combines direct sequence spread spectrum with multiple frequency shift keying and evaluates bit error rate performance under AWGN and Rayleigh fading channels.
ali husien
doaj   +1 more source

ATP‐Mediated Bidirectional Communication Between Natural and Artificial Cells for Controlled Bioreactions

Advanced Functional Materials, EarlyView.
Establishment of bidirectional communication behavior between natural and artificial cells. The first type of communication from natural dendritic cells to artificial polymeric cells was achieved via ATP release after cell lysis. The released ATP was taken up via gated UV‐controlled permeability increase of the polymeric membrane for performing ...
Ilona Kalte, Tsvetomir Ivanov, Leonhard Seufert, Shoupeng Cao, Lucas Caire da Silva, Volker Mailänder, Katharina Landfester   +6 more
wiley   +1 more source

Comparative Analysis Spread Spectrum and Parity Coding Steganography in E-commerce [PDF]

The transaction data online has increased compared to the previous communications that mostly in the form of voice and text messaging. To improve the security, data must be protected such a way that it cannot be attacked by unauthorized parties.
Brahim , W, Zen , S Hadi, Mike , Yuliana, Fatchul , Bari H.   +3 more
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Rapid Microwave Plasma Engineering of HfO2/C@C Core‐Shell Fibrous Membrane Toward Flexible High‐Performance Electromagnetic Wave Absorption

Advanced Functional Materials, EarlyView.
Rapid microwave plasma torch engineering tunes crystal phases, carbon graphitization and oxygen‐vacancy defects in HfO2/C@C core‐shell fibrous membranes. Synergistic multi‐loss effects optimize impedance matching to deliver −65.75 dB reflection loss and a 7.37 GHz effective bandwidth for flexible electromagnetic wave absorption.
Qichao Ding, Limeng Song, Wei Li, Jiangtao Hao, Xuewen Jiang, Mengru Li, Xinglai Yuan, Gang Wang, Yanqiu Zhu, Mi Tian, Hailong Wang, Hongxia Li, Biao Zhao, Rui Zhang, Bingbing Fan   +14 more
wiley   +1 more source

Ergodic Capacity of D2D Underlay Communication using MC-CDMA [PDF]

Radioengineering, 2019
Device to device (D2D) communication that underlay conventional cellular networks can increase their spectrum utilization. However, since D2D users share the frequency band with cellular users, interference between these two network tiers can become a ...
J. Ahmed, S. Wyne
doaj  

Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites

Advanced Functional Materials, EarlyView.
Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto, Javier Zamudio‐García, Abraham Sánchez‐Caballero, David Marrero‐López, Vincenzo Esposito   +4 more
wiley   +1 more source

Direct sequence spread spectrum in communication system

, 2004
In today 's advanced society, the ever increasing demand of wireless equipment such as mobile phones, cordless phones, wireless local area networks and future wireless appliances, cause two major issues to arise - inference amongst equipment and the lack
Thach, Ngoc Hoa
core