scholarly journals Time without time: A stochastic clock model

2002 ◽  
Vol 66 (4) ◽  
Author(s):  
Hans-Thomas Elze ◽  
Otavio Schipper
Keyword(s):  
Clock Model ◽  
Stochastic Clock

scholarly journals The Benefits of Receiver Clock Modelling in Satellite Timing

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 466
Author(s):  
Weijin Qin ◽  
Xiao Wang ◽  
Hang Su ◽  
Zhe Zhang ◽  
Xiao Li ◽  
...  
Keyword(s):  
White Noise ◽  
Noise Model ◽  
Kinematic Scheme ◽  
Clock Model ◽  
Average Improvement ◽  
Receiver Clock ◽  
Averaging Time ◽  
Stochastic Clock ◽  
Clock Offset ◽  
Sampling Times

Satellite timing is an effective and convenient method that has been widely accepted in the time community. The key to satellite timing is obtaining a clean receiver clock offset. In this paper, instead of regarding the receiver clock offset as white noise, a two-state stochastic clock model involving three kinds of noise was conceived and used in PPP filter estimation. The influence of clock type and sampling time on satellite timing performance was first analysed. In addition, the kinematic scheme and static scheme were both investigated for meeting the demands of multi-occasional users. The values show that the model works well for both the kinematic scheme and static scheme; in contrast to that of the white noise model, the timing stability is enhanced at all the sampling times. For the six stations, especially when the averaging time is less than 1000 s, the average stability improvement values of the kinematic scheme are 75.53, 43.24, 75.00, 69.05, 40.57, and 25.45%, and the average improvement values of the static scheme are 65.49, 77.94, 56.71, 60.78, 64.41, and 39.41%. Furthermore, the enhancement magnitude is related to clock type. For a high-stability clock, the improvement of the kinematic scheme is greater than that of the static scheme, whereas for a low-stability clock, the improvement of the kinematic scheme is less than that of the static scheme.

A Rubidium Clock Model,

1986 ◽  
Author(s):  
Robert P. Frueholz ◽  
James C. Camparo
Keyword(s):  
Clock Model ◽  
Rubidium Clock

scholarly journals Clock model and parafermions in Rashba nanowires

2021 ◽  
Vol 103 (23) ◽  
Author(s):  
Flavio Ronetti ◽  
Daniel Loss ◽  
Jelena Klinovaja
Keyword(s):  
Clock Model

scholarly journals Postquench entropy growth in a chiral clock model

2021 ◽  
Vol 103 (19) ◽  
Author(s):  
Naveen Nishad ◽  
M. Santhosh ◽  
G. J. Sreejith
Keyword(s):  
Clock Model ◽  
Entropy Growth

The bethe approximation to the three-state chiral clock model

1987 ◽  
Vol 66 (2) ◽  
pp. 227-235 ◽  
Author(s):  
M. Siegert ◽  
H. U. Everts
Keyword(s):  
Clock Model ◽  
Bethe Approximation

A simplified potential energy clock model for glassy polymers

Polymer ◽  
2009 ◽  
Vol 50 (17) ◽  
pp. 4257-4269 ◽  
Author(s):  
Douglas B. Adolf ◽  
Robert S. Chambers ◽  
Matthew A. Neidigk
Keyword(s):  
Potential Energy ◽  
Glassy Polymers ◽  
Clock Model

scholarly journals Genetic interactions between clock mutations in Neurospora crassa : can they help us to understand complexity?

2001 ◽  
Vol 356 (1415) ◽  
pp. 1717-1724 ◽  
Author(s):  
Louis W. Morgan ◽  
Jerry F. Feldman ◽  
Deborah Bell-Pedersen
Keyword(s):  
Coupled Oscillators ◽  
Temperature Compensation ◽  
White Collar ◽  
Circadian System ◽  
Genetic Interactions ◽  
Circadian Clocks ◽  
Metabolic Effects ◽  
Clock Model ◽  
Number Of Genes ◽  
Single Oscillator

Recent work on circadian clocks in Neurospora has primarily focused on the frequency ( frq ) and white–collar ( wc ) loci. However, a number of other genes are known that affect either the period or temperature compensation of the rhythm. These include the period (no relationship to the period gene of Drosophila ) genes and a number of genes that affect cellular metabolism. How these other loci fit into the circadian system is not known, and metabolic effects on the clock are typically not considered in single–oscillator models. Recent evidence has pointed to multiple oscillators in Neurospora , at least one of which is predicted to incorporate metabolic processes. Here, the Neurospora clock–affecting mutations will be reviewed and their genetic interactions discussed in the context of a more complex clock model involving two coupled oscillators: a FRQ/WC–based oscillator and a ‘ frq –less’ oscillator that may involve metabolic components.

Critical behavior of two-dimensional spin systems under the random-bond six-state clock model

2012 ◽  
Vol 112 (6) ◽  
pp. 063924 ◽  
Author(s):  
Raymond P. H. Wu ◽  
Veng-cheong Lo ◽  
Haitao Huang
Keyword(s):  
Critical Behavior ◽  
Spin Systems ◽  
Two Dimensional ◽  
Clock Model
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