Results 111 to 120 of about 52,986 (291)

Preliminary Results on 3D Channel Modeling: From Theory to Standardization

open access: yes, 2013
Three dimensional beamforming (3D) (also elevation beamforming) is now gaining a growing interest among researchers in wireless communication. The reason can be attributed to its potential to enable a variety of strategies like sector or user specific ...
Altman, Zwi   +4 more
core   +3 more sources

Photoswitching Conduction in Framework Materials

open access: yesAdvanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez   +4 more
wiley   +1 more source

Unleashing the Power of Machine Learning in Nanomedicine Formulation Development

open access: yesAdvanced Functional Materials, EarlyView.
A random forest machine learning model is able to make predictions on nanoparticle attributes of different nanomedicines (i.e. lipid nanoparticles, liposomes, or PLGA nanoparticles) based on microfluidic formulation parameters. Machine learning models are based on a database of nanoparticle formulations, and models are able to generate unique solutions
Thomas L. Moore   +7 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 access: yesOpen 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   +3 more
doaj   +1 more source

Introducing Microcells into Macrocellular Networks: A Case Study

open access: yes, 1999
?The performance in terms of signal-to-interference ratio (SIR), teletraffic, and spectral efficiency of a combined macrocellular and microcellular network is investigated when either both types of cells share the same channel set, or when the channel ...
Coombs, R, Steele, R
core   +1 more source

On Shadowing the κ-μ Fading Model

open access: yesIEEE 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   +5 more
openaire   +1 more source

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

open access: yes, 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   +5 more
openaire   +2 more sources

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

open access: yesAdvanced 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   +8 more
wiley   +1 more source

An Enhanced Path Loss Model for Maritime Communication Channels

open access: yesIEEE 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

Cardiac‐Derived ECM Microspheres for Enhanced hiPSC‐CMs Maturation

open access: yesAdvanced Functional Materials, EarlyView.
Cardiac extracellular matrix microspheres derived from decellularized porcine heart provide a biomimetic 3D microenvironment for human induced pluripotent stem cell–derived cardiomyocytes (hiPSC‐CMs). This platform supports short‐ and long‐term culture, enhances structural organization, and promotes electrophysiological and functional maturation of ...
Jiazhu Xu   +9 more
wiley   +1 more source

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