Results 11 to 20 of about 807,233 (265)

Contourite channels – Facies model and channel evolution

open access: yesSedimentology, 2022
AbstractDespite the rise in published evidence of deep‐marine bottom current processes and associated deposits there are still very few documented outcrop examples. Herein are reported results of a contourite channel system related to the late Miocene palaeo‐Mediterranean Outflow Water in the Rifian Corridor, Morocco.
Wouter de Weger   +8 more
openaire   +4 more sources

An Improved K-Power Means Technique Using Minkowski Distance Metric and Dimension Weights for Clustering Wireless Multipaths in Indoor Channel Scenarios

open access: yesJournal of ICT, 2021
Wireless multipath clustering is an important area in channel modeling, and an accurate channel model can lead to a reliable wireless environment. Finding the best technique in clustering wireless multipath is still challenging due to the radio channels’
Lawrence Materum, Antipas T. Teologo Jr.
doaj   +1 more source

A model of sodium channels

open access: yesBiochimica et Biophysica Acta (BBA) - Biomembranes, 2005
We have explored the permeation and blockage of ions in sodium channels, relating the channel structure to function using electrostatic profiles and Brownian dynamics simulations. The model used resembles the KcsA potassium channel with an added external vestibule and a shorter selectivity filter.
Vora, Taira, Corry, Ben, Chung, Shin-Ho
openaire   +3 more sources

3D channel model in 3GPP [PDF]

open access: yesIEEE Communications Magazine, 2015
Multi-antenna techniques capable of exploiting the elevation dimension are anticipated to be an important air-interface enhancement targeted to handle the expected growth in mobile traffic. In order to enable the development and evaluation of such multi-antenna techniques, the 3rd generation partnership project (3GPP) has recently developed a 3 ...
Bishwarup Mondal   +11 more
openaire   +2 more sources

Verification and Modeling of the Maritime Channel for Maritime Communications and Navigation Networks

open access: yesFrontiers in Marine Science, 2023
This paper presents a geometric stochastic channel model designed for analyzing maritime communication and navigation services between moving ships using the C-band or sub-6 GHz spectrum, which aligns with the focus of emerging 5G networks on land.
Ronald Raulefs   +4 more
doaj   +1 more source

A QoS Optimization Approach in Cognitive Body Area Networks for Healthcare Applications

open access: yesSensors, 2017
Wireless body area networks are increasingly featuring cognitive capabilities. This work deals with the emerging concept of cognitive body area networks.
Tauseef Ahmed, Yannick Le Moullec
doaj   +1 more source

5G-NR Physical Layer-Based Solutions to Support High Mobility in 6G Non-Terrestrial Networks

open access: yesDrones, 2023
Non-terrestrial network (NTN) systems can offer wide area coverage for applications requiring high mobility, which is expected in the sixth generation (6G) of telecommunication systems.
Chaitali J. Pawase, KyungHi Chang
doaj   +1 more source

Modeling of Ion Channels [PDF]

open access: yesThe Journal of General Physiology, 1999
Modeling of biological ion channels has a long history, going back more then 100 yr ([Hille 1984][1]). In the old, premolecular biology era, interpretation of these simple models provided the primary source of information about channel structure.
openaire   +2 more sources

A model of calcium channels

open access: yesBiochimica et Biophysica Acta (BBA) - Biomembranes, 2000
We propose a model of calcium channels that can explain most of their observed properties, including the anomalous mole fraction effect and mutation of the glutamate residues. The structure grossly resembles that of the KcsA potassium channel except for the presence of an extracellular vestibule and a shorter selectivity filter containing four ...
Corry, Ben   +3 more
openaire   +3 more sources

Millimeter-Wave Channel Model Parameters for Various Office Environments

open access: yesIEEE Access, 2022
This paper developed a 60-GHz millimeter-wave cluster channel model for various office environments and investigated the impact of cluster characteristics on wireless data transmission.
Hibiki Tsukada   +3 more
doaj   +1 more source

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