Results 71 to 80 of about 264,022 (279)

An All‐Optical Driven Bio‐Photovoltaic Interface for Active Control of Live Cells

Advanced Functional Materials, EarlyView.
Bio‐photovoltaic Interface (BIO‐PV‐I) for live cell manipulation is presented. BIO‐PV‐I can be activated non‐invasively and remotely to control the spatial motility, adhesion, and morphology of cells adhering to it. BIO‐PV‐I uses a patterned light‐induced electric potential in iron‐doped lithium niobate crystals whose light‐driven and reversible nature,
Lisa Miccio, Martina Mugnano, Valentina Marchesano, Alejandro Calabuig, Zhe Wang, Gennaro Giordano, Francesca Borrelli, Simonetta Grilli, Pietro Ferraro   +8 more
wiley   +1 more source

Reliable and Resilient Wireless Communications in IoT-Based Smart Agriculture: A Case Study of Radio Wave Propagation in a Corn Field

Telecom
In the past few years, one of the largest industries in the world, the agriculture sector, has faced many challenges, such as climate change and the depletion of limited natural resources.
Blagovest Nikolaev Atanasov, Nikolay Todorov Atanasov, Gabriela Lachezarova Atanasova   +2 more
doaj   +1 more source

Towards Vision-Based Smart Hospitals: A System for Tracking and Monitoring Hand Hygiene Compliance [PDF]

, 2017
One in twenty-five patients admitted to a hospital will suffer from a hospital acquired infection. If we can intelligently track healthcare staff, patients, and visitors, we can better understand the sources of such infections.
Alahi, Alexandre, Beninati, William, Downing, Lance, Fei-Fei, Li, Guo, Michelle, Haque, Albert, Jopling, Jeffrey, Luo, Zelun, Milstein, Arnold, Platchek, Terry, Rege, Alisha, Singh, Amit, Yeung, Serena   +12 more
core   +1 more source

Channel Charting in Smart Radio Environments

This paper introduces the use of static electromagnetic skins (EMSs) to enable robust device localization via channel charting (CC) in realistic urban environments. We develop a rigorous optimization framework that leverages EMS to enhance channel dissimilarity and spatial fingerprinting, formulating EMS phase profile design as a codebook-based problem
Maleki, Mahdi, Ayoubi, Reza Agahzadeh, Mizmizi, Marouan, Spagnolini, Umberto   +3 more
openaire   +2 more sources

Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration

Advanced Functional Materials, EarlyView.
Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley   +1 more source

Modeling the Lion Attack in Cognitive Radio Networks

EURASIP Journal on Wireless Communications and Networking, 2011
Cognitive radio is a promising technology aiming to improve the utilization of the radio electromagnetic spectrum. A cognitive radio is a smart device which runs radio applications software to perform signal processing.
Soriano Miguel, Hernandez-Serrano Juan, León Olga   +2 more
doaj  

Comparative assessment of data obtained using empirical models for path loss predictions in a university campus environment

Data in Brief, 2018
Empirical models are most widely used for path loss predictions because they are simple, easy to use, and require less computational efficiency when compared to deterministic models.
Segun I. Popoola, Aderemi A. Atayero, Oluwafunso A. Popoola   +2 more
doaj   +1 more source

Bio‐Inspired Molecular Events in Poly(Ionic Liquids)

Advanced Functional Materials, EarlyView.
Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley   +1 more source

Bio‐Inspired Magnetically Tunable Structural Colors from Elliptical Self‐Assembled Block Copolymer Microparticles

Advanced Functional Materials, EarlyView.
Cephalopod‐inspired photonic microparticles with dynamic structural coloration are fabricated via confined self‐assembly of linear block copolymers into ellipsoids containing stacked lamellae. Embedded superparamagnetic nanoparticles enable rapid magnetic alignment, restoring vivid, angle‐dependent color.
Gianluca Mazzotta, Simone Bertucci, Jose Mendoza‐Carreño, Agustín Mihi, Paola Lova, Davide Comoretto, Ullrich Steiner, Marco Lattuada, Andrea Dodero   +8 more
wiley   +1 more source

Computer‐Vision‐Assisted Intelligent Wireless Communication with Programmable Metasurface for Self‐Adaptive Moving‐Target Tracking and Signal Enhancement

Small Structures
Programmable metasurfaces have emerged as one of the most promising technologies for next‐generation wireless communication due to their powerful capabilities of dynamically controlling electromagnetic waves.
Kui Tang, Wanting Tong, Ye Deng, Shaojie Wang, Yifei Li, Junming Zhao, Tian Jiang, Ke Chen, Yijun Feng   +8 more
doaj   +1 more source