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Advanced Engineering Materials, EarlyView.A carbon‐free, as‐sintered MgO–steel cermet anode, fabricated via cold isostatic pressing using MgO–C refractory recyclate, was evaluated under laboratory‐scale K‐cryolite electrolysis at 800°C. Operation at this reduced temperature, combined with the electrolyte's limited electrical conductivity, led to an increase in cell voltage.
Farhan Hossain +7 more
wiley +1 more source
Towards Defect Phase Diagrams: From Research Data Management to Automated Workflows
Advanced Engineering Materials, EarlyView.A research data management infrastructure is presented for the systematic integration of heterogeneous experimental and simulation data required for defect phase diagrams. The approach combines openBIS with a companion application for large‐object storage, automated metadata extraction, provenance tracking and federated data access, thereby supporting ...
Khalil Rejiba +5 more
wiley +1 more source
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Spectral density of samarium sulfide
Physical Review B, 1998The spectral density of samarium sulfide is calculated using a multiband periodic Anderson model. The $s,$ $p,$ and $d$ states are treated as band states within the local-density approximation. Realistic, local many-electron states of the $4f$ shell are taken into account.
Lehner, C., Richter, M., Eschrig, H.
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On Comparing Several Spectral Densities
Technometrics, 2008We investigated the problem of testing equality among spectral densities of several independent stationary processes. Our main methodological contribution is the introduction of a novel semiparametric log-linear model that links all of the spectral densities under consideration.
Fokianos, Konstantinos +3 more
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ASYMPTOTICS OF SPECTRAL DENSITY ESTIMATES
Econometric Theory, 2009We consider nonparametric estimation of spectral densities of stationary processes, a fundamental problem in spectral analysis of time series. Under natural and easily verifiable conditions, we obtain consistency and asymptotic normality of spectral density estimates.
Liu, Weidong, Wu, Wei Biao
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1990
Abstract The previous two chapters were devoted entirely to the concept of multiple scattering, the concept of structure constants, and approximations dealing with the problem of disorder. Since the same formal language was used for both ordered and disordered systems, it is now comparatively easy to discuss spectral densities quite ...
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Abstract The previous two chapters were devoted entirely to the concept of multiple scattering, the concept of structure constants, and approximations dealing with the problem of disorder. Since the same formal language was used for both ordered and disordered systems, it is now comparatively easy to discuss spectral densities quite ...
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1985
The periodogram was introduced in Chapter III. Here we shall consider it in greater detail. It was originally introduced by Schuster [1898] as a tool to detect hidden periodicities. Suppose that $${Y_kappa} = {X_kappa} + {m_kappa}$$ where X κ is a weakly stationary process with mean zero and a continuous spectral density f (with f(π) = f(− π ...
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The periodogram was introduced in Chapter III. Here we shall consider it in greater detail. It was originally introduced by Schuster [1898] as a tool to detect hidden periodicities. Suppose that $${Y_kappa} = {X_kappa} + {m_kappa}$$ where X κ is a weakly stationary process with mean zero and a continuous spectral density f (with f(π) = f(− π ...
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2002
Purpose Processes with rational Power Spectrum Density (PSD) play a very important role for modelling second order properties of processes. In particular, piecewise continuous PSDs can be approximated with an arbitrary precision by rational PSDs (and even polynomial PSDs, see Appendix F).
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Purpose Processes with rational Power Spectrum Density (PSD) play a very important role for modelling second order properties of processes. In particular, piecewise continuous PSDs can be approximated with an arbitrary precision by rational PSDs (and even polynomial PSDs, see Appendix F).
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Spectral Density Matrix Transformations
Journal of the IEST, 2017Abstract Reference criteria for a multiple degree-of-freedom (MDOF) random vibration test is generally provided in terms of an acceleration-based spectral density matrix (SDM). This SDM may be developed in terms of the auto-spectral densities (ASDs) and cross-spectral densities (CSDs) computed from the time histories acquired from an ...
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