Results 11 to 20 of about 122,675 (338)

Research on Self-Aligning Flanges Based on Piezoelectric Actuators Applied to Precision Grinding Machines

open access: yesMicromachines, 2021
Laser fusion research requires a large number of high-precision large-diameter aspherical components. To improve the grinding efficiency in the component production process, the manual operation time during the grinding process needs to be reduced.
Xuepeng Huang   +3 more
doaj   +1 more source

The effect of viewing eccentricity on enumeration. [PDF]

open access: yesPLoS ONE, 2011
Visual acuity and contrast sensitivity progressively diminish with increasing viewing eccentricity. Here we evaluated how visual enumeration is affected by visual eccentricity, and whether subitizing capacity, the accurate enumeration of a small number (∼
Melanie Palomares   +3 more
doaj   +1 more source

The Aligned Orbit of the Eccentric Proto Hot Jupiter TOI-3362b

open access: yesThe Astrophysical Journal Letters, 2023
High-eccentricity tidal migration predicts the existence of highly eccentric proto hot Jupiters on the “tidal circularization track,” meaning that they might eventually become hot Jupiters, but that their migratory journey remains incomplete.
Juan I. Espinoza-Retamal   +10 more
doaj   +1 more source

Exploring Climate with Obliquity in a Variable-eccentricity Earth-like World

open access: yesThe Astronomical Journal, 2023
Exploring planetary systems similar to our solar system can provide a means to explore a large range of possibly temperate climates on Earth-like worlds.
M. J. Way   +2 more
doaj   +1 more source

Hydrostatic Asymmetric Journal Gas Bearings for Largely Unbalanced Rotors of Seismic ACROSS Transmitters

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2007
In currently working seismic ACROSS (Accurately Controlled Routinely Operated Signal System) transmitters, an unbalanced rotor with large eccentric mass, which generates elastic waves, is supported by roller bearings.
Tomohiko ISE   +4 more
doaj   +1 more source

Simulated Versus Observed Cluster Eccentricity Evolution [PDF]

open access: yes, 2004
The rate of galaxy cluster eccentricity evolution is useful in understanding large scale structure. Rapid evolution for $z < $ 0.13 has been found in two different observed cluster samples. We present an analysis of projections of 41 clusters produced in
Aarseth S. J.   +3 more
core   +1 more source

Scene categorization at large visual eccentricities

open access: yesVision Research, 2013
Studies of scene perception have shown that the visual system is particularly sensitive to global properties such as the overall layout of a scene. Such global properties cannot be computed locally, but rather require relational analysis over multiple regions. To what extent is observers' perception of scenes impaired in the far periphery?
Boucart, Muriel   +4 more
openaire   +3 more sources

Hydrostatic Asymmetric Journal Gas Barings for Seismic ACROSS Transmitters

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2007
The ACROSS (Accurately Controlled Routinely Operated Signal System) is used to detect subtle changes in the physical state of Earth's structure. The signal is sinusoidal elastic waves generated by the rotation of a rotor with eccentric mass set in ...
Tomohiko ISE   +4 more
doaj   +1 more source

On the Eccentricity Distribution of Exoplanets from Radial Velocity Surveys [PDF]

open access: yes, 2008
We investigate the estimation of orbital parameters by least-$\chi^2$ Keplerian fits to radial velocity (RV) data using synthetic data sets. We find that while the fitted period is fairly accurate, the best-fit eccentricity and $M_p\sin i$ are ...
Shen, Yue, Turner, Edwin L.
core   +1 more source

Numerical Investigation of the Behavior of Strip Footings under Large Eccentric Loads

open access: yesSlovak Journal of Civil Engineering, 2019
In this paper, numerical computations using the FLAC code are carried out to investigate of the behavior the bearing capacity of strip footings embedded in sandy soil and under large eccentric vertical load conditions.
Benmebarek Sadok   +3 more
doaj   +1 more source

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