نتایج جستجو برای: upper limits
تعداد نتایج: 318637 فیلتر نتایج به سال:
Abstract We derive generalized quantum speed limit inequalities that represent limitations on the time evolution of states. They are extensions original inequality and applied to overlap between time-evolved state an arbitrary state. can discuss lower Bures angle, in addition upper as inequality, which allows us evaluate bounds processing for toward a target The written by using reference flexi...
While it is established that the effect of neutrinos on the evolution of cosmic structure is small, the upper limits derived from large-scale structure could help significantly to constrain the absolute scale of the neutrino masses. Current results from cosmology set an upper limit on the sum of the neutrino masses of ∼ 1 eV, somewhat depending on the data sets used in the analyses and assumed ...
The climate variability hypothesis proposes that in variable temperate climates poikilothermic animals have wide thermal tolerance windows, whereas in constant tropical climates they have small thermal tolerance windows. In this study we quantified and compared the upper and lower lethal thermal tolerance limits of numerous bivalve species from a tropical (Roebuck Bay, north western Australia) ...
We report upper limits on the masses of black holes that can be present in the centers of sixteen nearby galaxy bulges. These limits Mlim BH for our statistically complete sample were derived from the modeling of the central emission-line widths ([N II] or [S II]), observed over a 0.′′25× 0.2 (R <∼ 9 pc) aperture. The experiment has a mean detection sensitivity of ∼ 3.9×106 M⊙. For three sample...
We place direct upper limits on the amplitude of gravitational waves from 28 isolated radio pulsars by a coherent multidetector analysis of the data collected during the second science run of the LIGO interferometric detectors. These are the first direct upper limits for 26 of the 28 pulsars. We use coordinated radio observations for the first time to build radio-guided phase templates for the ...
The thermal limits of individual animals were originally proposed as a link between animal physiology and thermal ecology. Although this link is valid in theory, the evaluation of physiological tolerances involves some problems that are the focus of this study. One rationale was that heating rates shall influence upper critical limits, so that ecological thermal limits need to consider experime...
A strategy for computing upper code-length limits of AC Huffman codes for an 8x8 block in JPEG Baseline coding is developed. The method is based on a geometric interpretation of the DCT, and the calculated limits are as close as 14% to the maximum code-lengths. The proposed strategy can be adapted to other transform coding methods, e.g., MPEG 2 and 4 video compressions, to calculate close upper...
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