Results 61 to 70 of about 2,705,238 (250)

Confirmation of the impact origin of the Late Ordovician Tvären impact structure (southeast Sweden) and emplacement of impactites in a marine setting

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The Tvären structure in southeastern Sweden has been listed as a confirmed marine‐target impact structure for decades. However, to date, no measurements and/or indexed data of planar deformation features in quartz grains from the structure have been published or any other unequivocal evidence of impact.
Katarzyna J. Gajewska   +6 more
wiley   +1 more source

Efficient coding of information: Huffman coding [PDF]

open access: yesResonance, 2006
In his classic paper of 1948, Claude Shannon considered the problem of efficiently describing a source that outputs a sequence of symbols, each associated with a probability of occurrence, and provided the theoretical limits of achievable performance. In 1951, David Huffman presented a technique that attains this performance.
openaire   +3 more sources

The impact of coaching on professional identity development in postgraduate medical trainees: A scoping review

open access: yesMedical Education, EarlyView.
Abstract Background This scoping review explores the impact of coaching on the professional identity formation (PIF) of postgraduate medical trainees. Although coaching is well‐documented in undergraduate medical education, its role in postgraduate medical education (PME) remains underexplored.
Roshanee Seth   +3 more
wiley   +1 more source

An implementation of Deflate in Coq

open access: yes, 2016
The widely-used compression format "Deflate" is defined in RFC 1951 and is based on prefix-free codings and backreferences. There are unclear points about the way these codings are specified, and several sources for confusion in the standard. We tried to
AW Appel   +9 more
core   +1 more source

Equal Time, Unequal Labor Division: Adolescents' Domestic Labor Time During the COVID‐19 Pandemic

open access: yesSociological Inquiry, EarlyView.
While existing research offers mixed evidence on how the COVID‐19 pandemic affected adults' division of housework, adolescents have remained largely overlooked in this regard. Using nationally representative data from the 2019–2021 American Time Use Survey and Current Population Survey, this study examines changes in adolescents' unpaid labor before ...
Suyeon Park Jang
wiley   +1 more source

The Rényi Redundancy of Generalized Huffman Codes [PDF]

open access: yes, 1988
Huffman's algorithm gives optimal codes, as measured by average codeword length, and the redundancy can be measured as the difference between the average codeword length and Shannon's entropy.
Blumer, Anselm C., McEliece, Robert J.
core  

Efficient Data Compression Scheme using Dynamic Huffman Code Applied on Arabic Language

open access: yes, 2006
The development of an efficient compression scheme to process the Arabic language represents a difficult task. This paper employs the dynamic Huffman coding on data compression with variable length bit coding, on the Arabic language.
S. Ghwanmeh, R. Al-Shalabi, G. Kanaan
semanticscholar   +1 more source

Hybrid Hydrodynamic‐Machine Learning Modelling for Rapid Flood Scenario Assessment: A Case Study in Aotearoa New Zealand

open access: yesJournal of Flood Risk Management, Volume 19, Issue 2, June 2026.
ABSTRACT Flooding is one of the most devastating natural disasters worldwide. It is also expected to become more severe as climate change impacts are realised. Two‐dimensional (2D) hydrodynamic models are used to obtain reliable inundation estimations.
Andrea Pozo   +5 more
wiley   +1 more source

Encrypting JPEG-compressed images by substituting Huffman code words [PDF]

open access: yesAnnals of computer science and information systems, 2022
Marek Parfieniuk
doaj   +1 more source

On Regular Quaternary Hadamard Matrices

open access: yesJournal of Combinatorial Designs, Volume 34, Issue 5, Page 215-227, May 2026.
ABSTRACT Through the use of regularizing vectors, all regular quaternary Hadamard matrices of orders 10 and 18 have been successfully identified. Of these, two matrices of order 10 and 184 matrices of order 18 were found to have unbiased mates. Converting the quaternary Hadamard matrices of order 18 to real Hadamard matrices, the study uncovered that ...
Hadi Kharaghani   +2 more
wiley   +1 more source

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