Results 71 to 80 of about 5,734,459 (326)

Spectral Density Analysis for Wave Characteristics in Pohang New Harbor

open access: yesPure and Applied Geophysics, 2014
The Pohang New Harbor (PNH), located at the Yongil bay in the northeastern part of Pohang city, South Korea, has experienced extreme wave hazards of about 3.0–5.0 m in elevation due to the seasonal swell from the far ocean. In this paper, both analytical
Prashant Kumar, Huai Zhang, K. Kim
semanticscholar   +1 more source

Spectral density and metal-insulator phase transition in Mott insulators within reduced density matrix functional theory. [PDF]

open access: yesPhysical Review Letters, 2012
We present a method for calculating the spectrum of periodic solids within reduced density matrix functional theory. This method is validated by a detailed comparison of the angular momentum projected spectral density with that of well-established many ...
Sangeeta Sharma   +3 more
semanticscholar   +1 more source

A power-spectral-density computer program [PDF]

open access: yes, 1967
Computer program simplifies and clarifies random noise vibration test results. It also varies PSD test specifications, sets up automatic equalization equipment, and calculates an exact accleration level for the random noise prior to the ...
Chapman, C. P.
core   +1 more source

Circulating histones as clinical biomarkers in critically ill conditions

open access: yesFEBS Letters, EarlyView.
Circulating histones are emerging as promising biomarkers in critical illness due to their diagnostic, prognostic, and therapeutic potential. Detection methods such as ELISA and mass spectrometry provide reliable approaches for quantifying histone levels in plasma samples.
José Luis García‐Gimenez   +17 more
wiley   +1 more source

Retrieval of Air Vertical Velocity and Droplet Size Distribution in Squall Line Precipitation Using C-FMCW Radar

open access: yes应用气象学报, 2022
The zenith C-band frequency modulation continuous wave(C-FMCW) radar has good detection capability with high temporary-spatial resolution and large dynamic range.
Chen Shaojie   +5 more
doaj   +1 more source

The limiting spectral distribution in terms of spectral density

open access: yes, 2016
For a large class of symmetric random matrices with correlated entries, selected from stationary random fields of centered and square integrable variables, we show that the limiting distribution of eigenvalue counting measure always exists and we ...
Peligrad, Costel, Peligrad, Magda
core   +1 more source

Universality near zero virtuality

open access: yes, 1996
In this paper we study a random matrix model with the chiral and flavor structure of the QCD Dirac operator and a temperature dependence given by the lowest Matsubara frequency. Using the supersymmetric method for random matrix theory, we obtain an exact,
A.D. Jackson   +53 more
core   +1 more source

Spectral density constraints in quantum field theory [PDF]

open access: yes, 2015
Determining the structure of spectral densities is important for understanding the behaviour of any quantum field theory (QFT). However, the exact calculation of these quantities often requires a full non-perturbative description of the theory, which for
Lowdon, Peter
core   +1 more source

Cyclic nucleotide signaling as a drug target in retinitis pigmentosa

open access: yesFEBS Letters, EarlyView.
Disruptions in cGMP and cAMP signaling can contribute to retinal dysfunction and photoreceptor loss in retinitis pigmentosa. This perspective examines the mechanisms and evaluates emerging evidence on targeting these pathways as a potential therapeutic strategy to slow or prevent retinal degeneration.
Katri Vainionpää   +2 more
wiley   +1 more source

Determination of optimal damping parameters for seismic isolation systems [PDF]

open access: yesИнженерно-строительный журнал, 2013
If seismic isolation system consists of elastic-damping bearings, it transforms protected object into the flow-frequency system. Thus, damping in SIS should be high enough to eliminate resonance effect. Therefore application of damping makes a problem of
N.V. Kovaleva   +2 more
doaj   +1 more source

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