نتایج جستجو برای: stability against fluctuations
تعداد نتایج: 907548 فیلتر نتایج به سال:
We propose a novel framework called StochasticSIFT for detecting interest points (IPs) in video sequences. The proposed framework incorporates a stochastic model considering the temporal dynamics of videos into the SIFT detector to improve robustness against fluctuations inherent to video signals. Instead of detecting IPs and then removing unstable or inconsistent IP candidates, we introduce IP...
We discuss the possibility that gravitational fluctuations (“gravitational-waves”) are trapped in space by interactions two dimensional Jackiw–Teitelboim gravity. In standard geon (gravitational electromagnetic entity) approach, effective energy is entirely deposited a thin layer, active region, achieves spatial self-confinement and raises doubts about geon’s stability. this paper we relinquish...
Synchrony has fundamental but conflicting implications for the persistence and stability of food webs at local and regional scales. In a constant environment, compensatory dynamics between species can maintain food web stability, but factors that synchronize population fluctuations within and between communities are expected to be destabilizing. We studied the dynamics of a food web in a metaco...
Frequency stability is key to the performance of nanoresonators. This stability is thought to reach a limit with the resonator's ability to resolve thermally induced vibrations. Although measurements and predictions of resonator stability usually disregard fluctuations in the mechanical frequency response, these fluctuations have recently attracted considerable theoretical interest. However, th...
We review recent work on the application of fluctuation analyses of time series for pattern classification in nondestructive materials inspection. These analyses are based on the evaluation of time-series fluctuations across time intervals of increasing size, and were originally introduced in the study of fractals. A number of examples indicate that this approach yields relevant features allowi...
One of the features of advanced third generation light sources is the bunch pattern control in the storage ring, where various filling patterns are of interest for different experiments. The most important step is to keep a uniform charge distribution over all (electron) bunches during the top-up operation. Such a bunch pattern control has been implemented at the Swiss Light Source (SLS). It pr...
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