Results 41 to 50 of about 2,100,534 (347)

Compression of Textual Column-Oriented Data

open access: yesComputing and Informatics, 2018
Column-oriented data are well suited for compression. Since values of the same column are stored contiguously on disk, the information entropy is lower if compared to the physical data organization of conventional databases. There are many useful light-weight compression techniques targeted at specific data types and domains, like integers and small ...
Vinicius Fulber Garcia   +1 more
openaire   +2 more sources

The intervertebral joints II: The facet joints

open access: yesSouth African Journal of Physiotherapy, 1994
The anatomy of the facet joints, also known as the zygapophyseal, apophyseal or lateral intervertebral joints, is described in detail. Particular reference is made to the changing orientation of the articular facets in the cervical, thoracic and lumbar ...
Jeanette Mitchell
doaj   +1 more source

Electrodeposition of Bi-Te Thin Films on Silicon Wafer and Micro-Column Arrays on Microporous Glass Template

open access: yesNanomaterials, 2020
Electrodeposition is an important method for preparing bismuth telluride (Bi2Te3)-based thermoelectric (TE) thin films and micro-column arrays.
Ning Su, Shuai Guo, Fu Li, Bo Li
doaj   +1 more source

Relationship between the Metallicity of the Circumgalactic Medium and Galaxy Orientation [PDF]

open access: yesAstrophysical Journal, 2019
We investigate the geometric distribution of gas metallicities in the circumgalactic medium (CGM) around 47, z < 0.7 galaxies from the “Multiphase Galaxy Halos” Survey.
S. Pointon   +6 more
semanticscholar   +1 more source

Superquadric discrete element simulation for influence of particle shape and orientation on granular column collapse

open access: yesYantu gongcheng xuebao
The shape of rock and soil particles is distinct and their orientation may prefer a certain direction, and determining the influence of particle shape and orientation on the characteristics of granular column collapse is of great significance to ...
JIN Lei1 , YE Yang2, SUN Hanqing3, 4
doaj   +1 more source

Pyramid Histogram of Double Competitive Pattern for Finger Vein Recognition

open access: yesIEEE Access, 2018
Finger vein is a new and secure biometric for personal authentication due to its line-structure network with abundant local and orientation features. However, these features cannot be well represented by the existing local descriptors.
Yu Lu   +3 more
doaj   +1 more source

Compression of Very Sparse Column Oriented Data [PDF]

open access: yesRevista ComInG - Communications and Innovations Gazette, 2016
Column oriented databases store columns contiguously on disk. The adjacency of values from the same domain leads to a reduced information entropy. Consequently, compression algorithms are able to achieve better results. Columns whose values have a high cardinality are usually compressed using variations of the LZ method.
Vinicius Fulber Garcia   +1 more
openaire   +1 more source

Automated Reconstruction of Three-Dimensional Fish Motion, Forces, and Torques. [PDF]

open access: yesPLoS ONE, 2016
Fish can move freely through the water column and make complex three-dimensional motions to explore their environment, escape or feed. Nevertheless, the majority of swimming studies is currently limited to two-dimensional analyses.
Cees J Voesenek   +2 more
doaj   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

open access: yesFEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang   +9 more
wiley   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

open access: yesFEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang   +9 more
wiley   +1 more source

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