Results 31 to 40 of about 12,810,823 (193)

Technical note: Estimating unbiased transfer-function performances in spatially structured environments

open access: yes, 2015
. Conventional cross validation schemes for assessing transfer-function performance assume that observations are independent. In spatially structured environments this assumption is violated, resulting in over-optimistic estimates of transfer-function ...
M. Trachsel, R. Telford
semanticscholar   +1 more source

Multivariable Control of Solar Battery Power by Extremum Seeking: Starting from Linear Analysis

open access: yesMachines, 2019
In this study, we tried to combine maximum power point trackers (MPPT) and «Extremum Seeking» in a single multi-parameter extremum seekeng system for orienting solar panels and draw attention to the problem of a deeper study of nonlinear ...
I. M. Kirpichnikova, A. Yu. Sologubov
doaj   +1 more source

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

Species- and Trait-Based Reconstructions of the Hydrological Regime in a Tropical Peatland (Central Sumatra, Indonesia) during the Holocene Using Testate Amoebae

open access: yesDiversity, 2022
Paleoecological reconstructions of hydrological regimes in tropical peatlands during the Holocene are important for the estimation of their responses to changing environments. However, the application of some widely used proxies, such as testate amoebae,
Andrey N. Tsyganov   +7 more
doaj   +1 more source

Contribution analysis of vibration mode utilizing operational TPA

open access: yesMechanical Engineering Journal, 2016
Operational transfer path analysis (OTPA) calculates contributions of reference points to response point vibration by using only operational data.
Junji YOSHIDA, Koki TANAKA
doaj   +1 more source

Noise identification based on spectral analysis and noisy transfer function approach for fuel cells

open access: yesNoise Mapping, 2020
In this study, some measurements like the current, voltage and hydrogen flow based on the fuel cell are investigated in spectral-domain as well as their time-domain representations and then, their spectral properties are extracted.
Akinci Tahir Cetin   +3 more
doaj   +1 more source

Rapid Calculation and Optimization of Vibration and Noise of Permanent-Magnet Synchronous Motors for EVs Based on Equivalent Structural Network

open access: yesMachines, 2022
Optimizing electromagnetic performance and vibration noise performance simultaneously is important when designing the drive motor for electric vehicles (EVs). This has not been fully explored, and there are only a few relevant studies.
Tengfei Song   +3 more
doaj   +1 more source

A New Method for Controlling Fractional Linear Systems

open access: yesFractal and Fractional, 2022
The study of fractional linear time-invariant (LTI) systems has been an area of active research over the past thirty years. Results indicate that such systems are becoming important in the representation of certain types of dynamical behavior in biology ...
Subramanian V. Shastri   +2 more
doaj   +1 more source

Transfer Function between EEG and BOLD Signals of Epileptic Activity

open access: yesFront. Neur., 2013
Simultaneous electroencephalogram (EEG)-functional Magnetic Resonance Imaging (fMRI) recordings have seen growing application in the evaluation of epilepsy, namely in the characterization of brain networks related to epileptic activity. In EEG-correlated
M. Leite, A. Leal, P. Figueiredo
semanticscholar   +1 more source

Binary Aquila Optimizer for Selecting Effective Features from Medical Data: A COVID-19 Case Study

open access: yesMathematics, 2022
Medical technological advancements have led to the creation of various large datasets with numerous attributes. The presence of redundant and irrelevant features in datasets negatively influences algorithms and leads to decreases in the performance of ...
Mohammad H. Nadimi-Shahraki   +3 more
doaj   +1 more source

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