Results 111 to 120 of about 52,732 (293)

Micropatterned Biphasic Printed Electrodes for High‐Fidelity on‐Skin Bioelectronics

Advanced Functional Materials, EarlyView.
Micropatterned biphasic printed electrodes achieve unprecedented skin conformity and low impedance by combining liquid‐metal droplets with microstructured 3D lattices. This scalable approach enables high‐fidelity detection of ECG, EMG, and EEG signals, including alpha rhythms from the forehead, with long‐term comfort and stability.
Manuel Reis Carneiro, Telmo Lopes, André F. Silva, Carmel Majidi, Mahmoud Tavakoli   +4 more
wiley   +1 more source

The effect of urban environment on large-scale path loss model’s main parameters for mmWave 5G mobile network in Iraq

Open Engineering
The high speeds resulting from the use of millimeter waves (mmWave) in 5G mobile networks are accompanied by high path loss. The issue of generating a reliable propagation model of radio waves is crucial to the development of cellular networks since it ...
Mezaal Mushtaq Talib, Aripin Norazizah Binti Mohd, Othman Noor Shamsiah, Sallomi Adheed Hasan   +3 more
doaj   +1 more source

On Shadowing the κ-μ Fading Model

IEEE Access, 2020
In this paper, we extensively investigate the way in which κ-μ fading channels can be impacted by shadowing. Following from this, a family of shadowed κ-μ fading models are introduced and classified according to whether the underlying κ-μ fading undergoes single or double shadowing.
Nidhi Simmons, Carlos Rafael Nogueira Da Silva, Simon L. Cotton, Paschalis C. Sofotasios, Seong Ki Yoo, Michel Daoud Yacoub   +5 more
openaire   +1 more source

On Shadowing the $\kappa$-$\mu$ Fading Model

, 2018
In this paper, we extensively investigate the way in which $\kappa$-$\mu$ fading channels can be impacted by shadowing. A family of shadowed $\kappa$-$\mu$ fading models are introduced and classified according to whether the underlying $\kappa$-$\mu$ fading undergoes single or double shadowing.
Simmons, Nidhi, da Silva, Carlos Rafael Nogueira, Cotton, Simon L., Sofotasios, Paschalis C., Yoo, Seong Ki, Yacoub, Michel Daoud   +5 more
openaire   +2 more sources

Kinetic Insights into Precursor‐Assisted Soft Sphere Close Packing Revealed by In Situ GISAXS with Implications for Gas Sensing

Advanced Functional Materials, EarlyView.
The versatile precursor‐assisted soft sphere close packing during slot‐die coating is investigated with in situ X‐ray scattering. The soft crystallization pathways towards a close packing involve multistep structural transitions such as surface nucleation, in‐plane, and out‐of‐plane crystallization.
Guangjiu Pan, Wenhe Xie, Suzhe Liang, Ting Tian, Shanshan Yin, Lixing Li, Altantulga Buyan‐Arivjikh, Jinsheng Zhang, Thomas Baier, Zhuijun Xu, Matthias Schwartzkopf, Sarathlal Koyiloth Vayalil, Stephan V. Roth, Yonghui Deng, Peter Müller‐Buschbaum   +14 more
wiley   +1 more source

An Enhanced Path Loss Model for Maritime Communication Channels

IEEE Access
This study proposes a new ocean propagation loss model, the curved ground loss (CGL) model, to improve the existing models by considering the effects of sea surface roughness, earth curvature, and sea wave height on signal fading at the reflection point.
Chongquan Wang, Shengming Jiang
doaj   +1 more source

On Critical Density for Coverage and Connectivity in Directional Sensor Network over Stochastic Channels Using Continuum Percolation

International Journal of Distributed Sensor Networks, 2015
Sensing coverage, which is one of vital issues in the design of wireless sensor networks (WSNs), can usually interact with other performance metrics such as network connectivity and energy consumption.
Jinlan Li, Chaowei Wang, Yinghai Zhang, Lin Kang, Zhi Chen   +4 more
doaj   +1 more source

Shadow Fading Correlation in High-Speed Railway Environments

IEEE Transactions on Vehicular Technology, 2014
In the design of diversity and fast handover schemes for high-speed railways (HSRs), a better understanding of the shadow fading correlation properties is required. In this paper, both auto- and cross-correlation models of shadow fading in HSR environments are proposed based on a large set of measurements with 6146 cells in China.
He, Ruisi, Zhong, Zhangdui, Ai, Bo, Oestges, Claude   +3 more
openaire   +2 more sources

Flux‐Regulated Crystallization of Perovskites Using Machine Learning‐Predicted Solvent Evaporation Rates for X‐Ray Detectors

Advanced Functional Materials, EarlyView.
By integrating machine learning into flux‐regulated crystallization (FRC), accurate prediction of solvent evaporation rates in real time, improving crystallization control and reducing crystal growth variability by over threefold, is achieved. This enhances the reproducibility and quality of perovskite single crystals, leading to reproducible ...
Tatiane Pretto, Sergey Dayneko, Antoine Pavesic Junior, Nicholas Sandor, Alexander Hart, Yuki Haruta, Magdalena Bazalova‐Carter, Marcos J. L. Santos, Makhsud I. Saidaminov   +8 more
wiley   +1 more source

Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules

Advanced Functional Materials, EarlyView.
A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang, Max Gießübel, Pankaj Dharpure, Andrea Albert, Vira Niestierkina, Paul Mulvaney, Mukundan Thelakkat, Jürgen Köhler   +7 more
wiley   +1 more source