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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Eccentricity sheds light on gravitational-wave dark sirens in the mid-band
偏心率 中频带 引力波 暗警报器
2023/5/9
The source localization and distance inference of gravitational waves (GWs) are two crucial factors for GW standard sirens as precise probes of cosmology, astrophysics, and fundamental physics. In thi...
AN INTEGRABLE DEFORMATION OF AN ELLIPSE OF SMALL ECCENTRICITY IS AN ELLIPSE
INTEGRABLE DEFORMATION ELLIPSE OF SMALL ECCENTRICITY ELLIPSE
2015/9/25
The classical Birkhoff conjecture says that the only integrable convexdomains are circles and ellipses. In the paper we show that a version of this conjecture is true for small perturbations of ellips...
Gaze-Eccentricity Effects on Road Position and Steering
Gaze-Eccentricity Effects Road Position Steering
2015/8/13
The effects of gaze eccentricity on the steering of an automobile were studied. Drivers performed an attention task while attempting to drive down the middle of a straight road in a simulation. Steeri...
ESTIMATION OF INTERIOR ORIENTATION AND ECCENTRICITY PARAMETERS OF A HYBRID IMAGING AND LASER SCANNING SENSOR
Calibration Terrestrial laser scanning Hybrid measurement system Sensor fusion
2015/7/31
Nowadays hybrid imaging and laser scanning sensors are common for terrestrial surveying purposes. The basic idea is to complement laser scanning, which directly yields 3D information, with digital ima...
Eccentricity in Images of Circular and Spherical Targets and its Impact to 3D Object Reconstruction
Spherical target circular target sphere eccentricity spatial intersection simulation
2014/7/30
This paper discusses a feature of projective geometry which causes eccentricity in the image measurement of circular and spherical targets. While it is commonly known that flat circular targets can ha...
Effects of Comprehensive Eccentricity of Involute Cam on Gear Profile Deviations
gear grinder with flat-faced wheel involute cam ultra precision master gear
2011/8/4
Turbopump condition monitoring is a significant approach to ensure the safety of liquid rocket engine (LRE). Because of lack of fault samples, a monitoring system cannot be trained on all possible con...
Detection of static eccentricity for permanent magnet synchronous motors using the coherence analysis
Permanent magnet synchronous motor eccentricity fault diagnosis spectral analysis
2010/11/22
This paper reports on work to detect the static eccentricity faults for permanent magnet synchronous motor (PMSM) using spectral analysis methods. Measurements are carried out by collecting the stator...
Glauber-based evaluations of the odd moments of the initial eccentricity relative to the even order participant planes
Glauber-based evaluations of the odd moments initial eccentricity relatives
2011/1/7
Monte Carlo simulations are used to compute the centrality dependence of the odd moments of the
initial eccentricity "n+1, relative to the even order (n) participant planes
n in Au+Au collisions.
...
Glauber-based evaluations of the odd moments of the initial eccentricity relative to the even order participant planes
Glauber-based evaluations the odd moments the initial eccentricity relative to the even order participant planes
2011/1/4
Monte Carlo simulations are used to compute the centrality dependence of the odd moments of the initial eccentricity $\epsilon_{n+1}$, relative to the even order (n) participant planes $\Psi^*_n$ in A...
Effects of Turbulence, Eccentricity Damping, and Migration Rate on the Capture of Planets into Mean Motion Resonance
planetary systems planetary systems formation — planets and satellites formation — turbulence
2010/11/11
Pairs of migrating extrasolar planets often lock into mean motion resonance as they drift inward. This paper studies the convergent migration of giant planets (driven by a circumstellar disk) and dete...
Extreme Climate Variations from Milankovitch-like Eccentricity Oscillations in Extrasolar Planetary Systems
Earth and Planetary Astrophysics (astro-ph.EP)
2010/12/28
Although our solar system features predominantly circular orbits, the exoplanets discovered so far indicate that this is the exception rather than the rule.
The distribution of eccentricity of compact binaries
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/23
The current gravitational wave detectors have reached their operational sensitivity and are nearing detection of compact object binaries. In the coming years we expect that the Advanced LIGO/VIRGO wil...
The Torsional Eccentricity of the Structures in Miscellaneous Design Codes
eccentricity torsion
2010/8/17
Structures rarely achieve structural symmetry. Even in symmetric structures, the asymmetric position of the structural components tends to produce an effective asymmetric structure. Such an asymmetry ...
THE NEW KINEMATICAL DEFINITION OF ORBITAL ECCENTRICITY
Galaxy: kinematics and dynamics a kinematical nature three-dimensional orbits
2010/10/29
A new concept of orbital eccentricity is given. The dimensionless quantities proposed in the present paper to serve as orbital eccentricities have a kinematical nature. The purpose is to use them in d...
The Mass/Eccentricity Limit in Double Star Astronomy
Stellar evolution statistics binaries
2009/5/19
A research that we conducted in 1963 on the evolution of
the binaries based on the available orbital data to obtain a philosophical
degree, led to the establishment of an interesting and new diagram...