Results 121 to 130 of about 5,046,526 (353)

Swirl Characteristics of Vortex Valve Variable-Thrust Solid Rocket Motor

open access: yesJournal of Applied Fluid Mechanics, 2018
In accordance with the flow characteristics of vortex valve variable-thrust solid rocket motors, a cold flow experimental system based on Particle Image Velocimetry was established.
X. G. Wei, J. Li, G. Q. He
doaj  

Heuristic Analysis of Time Series Internal Structure [PDF]

open access: yes
A method of analysis of Time Series Internal Structures based on Singular Spectrum Analysis is discussed. It has been shown that in the case when the Time Series contains deterministic additive components rank of the trajectory matrices equal to number ...
Alexander Milnikov, Cihan Mert
core   +1 more source

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

open access: yesFEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon   +6 more
wiley   +1 more source

A Flight‐Information‐Perceived Approach to Parameter Determination of Giant Asteroids: Revisiting Dawn Mission

open access: yesJournal of Geophysical Research: Machine Learning and Computation
The internal structures of asteroids are estimated iteratively via a classic gravity‐field‐inversed method on the ground computer in the post‐mission phase due to a large amount of gravity data. This paper develops a flight‐information‐perceived approach
Y. Liang   +3 more
doaj   +1 more source

Alcohol‐induced altered glycans in human tracheal epithelial cells promote bacterial adhesion

open access: yesFEBS Open Bio, EarlyView.
Alcohol induces altered glycans to promote bacteria adhesion. Heavy alcohol drinking is known to increase the risk of bacterial pneumonia. However, the link between alcohol levels and risk of infection remains underexplored. Recently, we found that alcohol induced α2‐6sialo mucin O‐glycans in human tracheobronchial epithelial cells, which mediated the ...
Pi‐Wan Cheng   +2 more
wiley   +1 more source

Dual control of external surface and internal pore structure of small ordered mesoporous silica particles directed by mixed polyion complex micelles

open access: green, 2022
Jason Richard   +10 more
openalex   +2 more sources

Nuclear pore links Fob1‐dependent rDNA damage relocation to lifespan control

open access: yesFEBS Open Bio, EarlyView.
Damaged rDNA accumulates at a specific perinuclear interface that couples nucleolar escape with nuclear envelope association. Nuclear pores at this site help inhibit Fob1‐induced rDNA instability. This spatial organization of damage handling supports a functional link between nuclear architecture, rDNA stability, and replicative lifespan in yeast.
Yamato Okada   +5 more
wiley   +1 more source

Revealing the Structure and Internal Rotation of the Sagittarius Dwarf Spheroidal Galaxy with Gaia and Machine Learning [PDF]

open access: bronze, 2021
Andrés del Pino   +5 more
openalex   +1 more source

Chameleon sequences reveal structural effects in proteins representing micelle‐like distribution of hydrophobicity

open access: yesFEBS Open Bio, EarlyView.
Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman   +4 more
wiley   +1 more source

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