Results 101 to 110 of about 2,559,254 (252)

P-LDPC coded image transmission with OFDM over underwater acoustic channel

Acta Polytechnica
Underwater environment is still an attractive area to explore and exploit by human beings. However, underwater characteristics limit communications due to harsh channel conditions, and efficient channel codes are essential to deploy. This study presents
Aymen M. Al-Kadhimi, Ammar E. Abdelkareem, Charalampos C. Tsimenidis   +2 more
doaj   +1 more source

Zero-Shot Self-Supervised Learning of Single Breath-Hold Magnetic Resonance Cholangiopancreatography (MRCP) Reconstruction. [PDF]

Magn Reson Med
ABSTRACT Purpose To investigate the feasibility of zero‐shot self‐supervised learning reconstruction for reducing breath‐hold times in magnetic resonance cholangiopancreatography (MRCP). Methods Breath‐hold MRCP was acquired from 11 healthy volunteers on 3T scanners using an incoherent k‐space sampling pattern, leading to a 14‐s acquisition time and an
Kim J, Nickel MD, Knoll F.
europepmc   +2 more sources

Male Mice Heterozygous for Protamine 1 and Protamine 2 Are Infertile, Displaying Sperm Damage and Retention of Protamine 2 Precursors, Transition Proteins, and Histones

Andrology, EarlyView.
ABSTRACT Background During spermiogenesis, protamines (PRMs) replace histones to hypercondense and protect sperm DNA. Rodents and primates express two PRMs (PRM1 and PRM2). Alterations of species‐specific PRM ratios are associated with sub‐ or infertility in mice and humans.
Gina Esther Merges, Christoph Wiesejahn, Mar Domingo‐Lopez, Simon Schneider, Andjela Kovacevic, Lena Arévalo, Hubert Schorle   +6 more
wiley   +1 more source

Turbo Codes Performance Optimization over Block Fading Channels

Journal of Communications Software and Systems, 2006
In this paper, the best achievable performance of a turbo coded system on a block fading channel is obtained, assuming binary antipodal modulation. A rate 1/3 turbo code is considered, obtained by concatenating, through a random interleaver, an 8-states ...
Fulvio Babich, Guido Montorsi, Francesca Vatta   +2 more
doaj  

Soil wetting and drying processes influence stone artefact distribution in clay‐rich soils: A case study from Middle Gidley Island in Murujuga, northwest Western Australia

Archaeometry, EarlyView.
Abstract Soils that contain swelling clay minerals (e.g., montmorillonite) expand and contract during wetting and drying, causing movement within the soil profile. This process, known as argilliturbation, can alter artefact distributions, destroy stratigraphy and complicate the interpretation of archaeological deposits.
Caroline Mather, Matthias Leopold, Kaitlin Sullivan, Kane Ditchfield, Tom Horrocks, Luke Gliganic, Emma Beckett, Diana Patalwala, Emielda Yusiharni, Michael Smirk, William Hiscock, Jo McDonald   +11 more
wiley   +1 more source

The role of generative AI in collaborative problem‐solving of authentic challenges

British Journal of Educational Technology, EarlyView.
Abstract This study investigates undergraduate and postgraduate teamwork in a four‐week ‘Generative AI for Social Good’ hackathon, focusing on how students use GAI tools in authentic problem‐solving within their learning ecology. It examines the factors that foster productive collaboration and explores evidence of AI extending human cognition beyond ...
Nancy Law, Nan Wang, Ming Ma, Zhichun Liu, Leon Lei, Shuhui Feng, Xiao Hu, Jack Tsao   +7 more
wiley   +1 more source

Detection and Coding Techniques for Fourth Generation Air-Interfaces based on Multicarrier Modulation [PDF]

, 2007
This thesis investigates a number of multiple-access, multiuser detection (MUD) and channel coding methods for the downlink of 4G wireless systems based on multicarrier modulation.
Awad, Akram
core   +2 more sources

Distributed Symmetric Turbo Coded OFDM Scheme Incorporated with STBC-MIMO Antennas for Coded-Cooperative Wireless Communication under Wideband Noise Jamming Environment [PDF]

Radioengineering
This research paper proposes a novel anti-jamming technique based on a single-relay distributed symmetric Turbo coded orthogonal frequency division multiplexing (DSTC-OFDM) scheme.
A. M. A. Mirza, A. Khawaja, S. Mughal, R. A. Butt   +3 more
doaj  

MRpro: Open Framework for Model‐Based, Learned, and Quantitative MR Imaging—Application to Low‐Field MRI [PDF]

NMR Biomed
MRpro is an open‐source PyTorch framework for MR image reconstruction and quantitative parameter estimation. Its modular design combines standardized data handling, composable operators, ready‐to‐use algorithms, and deep‐learning components to support reproducible workflows for conventional and low‐field MRI.
Frederik Zimmermann F, Schuenke P, Aigner C, Bernhardt B, Guastini M, Hammacher J, Herthum H, Jaitner N, Kofler A, Lunin L, Martin S, Redshaw Kranich C, Schattenfroh J, Schote D, Wu Y, Kolbitsch C.   +15 more
europepmc   +2 more sources

LLM‐based prior elicitation for Bayesian graphical modeling

British Journal of Mathematical and Statistical Psychology, EarlyView.
ABSTRACT In the Bayesian graphical modeling framework, priors on network structure encode theoretical assumptions and uncertainty about the topology of psychological constructs under study. For instance, the Bernoulli prior specifies the probability of each pairwise interaction, the Beta–Bernoulli prior governs expected network density, and the ...
Nikola Sekulovski, Meike Waaijers, Giuseppe Arena   +2 more
wiley   +1 more source