Results 51 to 60 of about 2,982,596 (301)

On transfer functions and transients [PDF]

open access: yesQuarterly of Applied Mathematics, 1958
In the first part of this paper the concept of the positive real function is generalized so that it is applicable to transfer functions and the functions, satisfying this generalized concept, are arranged into classes. Some tests are then developed which may be used to determine whether a transfer function belongs to a particular class.
openaire   +3 more sources

A Comparative Study of Aqueous and Non-Aqueous Solvents to Be Used in Low-Temperature Serial Molecular–Electronic Sensors

open access: yesChemosensors, 2022
This paper presents the experimental results of studying the samples of the electrochemical sensors of motion parameters on the base of Molecular Electronics Technology (MET).
Dmitry Zaitsev   +2 more
doaj   +1 more source

On determining which quantum measurement performs better for state estimation

open access: yes, 2014
We introduce an operational and statistically meaningful measure, the quantum tomographic transfer function, that possesses important physical invariance properties for judging whether a given informationally complete quantum measurement performs better ...
Hradil, Zdenek   +2 more
core   +1 more source

Passive discrete-time systems with a Pontryagin state space [PDF]

open access: yes, 2019
Passive discrete-time systems with Hilbert spaces as an incoming and outgoing space and a Pontryagin space as a state space are investigated. A geometric characterization when the index of the transfer function coincides with the negative index of the ...
Lilleberg, Lassi
core   +2 more sources

Tectonic process monitoring by variations of the geomagnetic field absolute intensity

open access: yesAnnals of Geophysics, 1997
We propose a novel technique for tectonic process monitoring. The technique includes: measurements of absolute intensity variations, at network sites, synchronously with measurements of horizontal geomagnetic field variations at a reference site ...
O. V. Pankratov   +2 more
doaj   +1 more source

Equilibrium Optimizer for Emotion Classification From English Speech Signals

open access: yesIEEE Access, 2023
Speech emotion recognition and its precise classification are challenging tasks that heavily depend on the quality of feature extraction and selection for speech signals.
Liya Yue   +3 more
doaj   +1 more source

On the estimation of transfer functions

open access: yesAutomatica, 1985
This paper treats the close conceptual relationships between the three basic approaches to estimation of transfer functions of linear systems: frequency analysis, spectral analysis and time domain prediction error methods. The emphasis of this paper is put on the empirical transfer function estimate (ETFE), which is a direct extension of the frequency ...
openaire   +3 more sources

Limits on the amplification of evanescent waves of left-handed materials

open access: yes, 2005
We investigate the transfer function of the discretized perfect lens in finite-difference time-domain (FDTD) and transfer matrix (TMM) simulations; the latter allow to eliminate the problems associated with the explicit time dependence in FDTD ...
Costas M. Soukoulis   +13 more
core   +1 more source

Analysis of double-parallel amplified recirculating optical-delay lines [PDF]

open access: yes, 1994
A novel method of analysis of double-parallel amplified recirculating optical-delay lines (DPAROD) is presented. The location of the maxima and the minima of the transfer function for this configuration is calculated and experimentally demonstrated.
Civera, Rafael   +3 more
core   +2 more sources

Geographic variation in walking activity in the red flour beetle Tribolium castaneum

open access: yesPopulation Ecology, EarlyView.
This study examined whether there is geographic variation in field populations, focusing on the moving activity in the red flour beetle Tribolium castaneum. Results showed significant differences in moving activity among field populations but no correlation with latitude or meteorological factors.
Kentarou Matsumura
wiley   +1 more source

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