Results 71 to 80 of about 693,040 (378)

Experimental investigation of active yaw moment control system using a momentum wheel

open access: yesSystems Science & Control Engineering, 2017
Active yaw moment control is one of the most effective methods to improve the lateral stability and safety of vehicle. In this method, the overall yaw moment of the vehicle is modified by applying the corrective yaw moment generated by the systems that ...
Ankur Arora   +2 more
doaj   +1 more source

The Efficiency of a Ratio Product Estimator in the Estimation of the Finite Population Coefficient of Variation

open access: yesEngineering Proceedings, 2023
Ratio product estimators have been proposed by several authors for the estimation of the population mean and population variance, but very few authors have proposed ratio product estimators for the estimation of the population coefficient of variation ...
Yahaya Zakari   +5 more
doaj   +1 more source

Structural and mechanistic basis for the regulation of the chloroplast signal recognition particle by (p)ppGpp

open access: yesFEBS Letters, EarlyView.
LHCPs are transported to the thylakoid membrane via the (cp)SRP pathway. This process involves a transit complex of (cp)SRP43, (cp)SRP54 and LHCP, which interacts with (cp)FtsY and Alb3 at the membrane. GTP hydrolysis by (cp)SRP54 and (cp)FtsY triggers complex dissociation.
Victor Zegarra   +7 more
wiley   +1 more source

Virtual Estimator for Piecewise Linear Systems Based on Observability Analysis

open access: yesSensors, 2013
This article proposes a virtual sensor for piecewise linear systems based on observability analysis that is in function of a commutation law related with the system’s outpu. This virtual sensor is also known as a state estimator.
Ilse Cervantes   +4 more
doaj   +1 more source

Efficient estimation in the Topp-Leone distribution [PDF]

open access: yesarXiv, 2017
In the current paper, the estimation of the probability density function and the cumulative distribution function of the Topp-Leone distribution is considered. We derive the following estimators: maximum likelihood estimator, uniformly minimum variance unbiased estimator, percentile estimator, least squares estimator and weighted least squares ...
arxiv  

Taurine promotes glucagon‐like peptide‐1 secretion in enteroendocrine L cells

open access: yesFEBS Letters, EarlyView.
Taurine, a sulfur‐containing amino acid, is likely taken up by enteroendocrine L cells via the taurine transporter. This process increases the levels of cytosolic ATP. The increase in intracellular Ca2+ concentrations and glucagon‐like peptide‐1 secretion through membrane depolarization is caused by the closure of ATP‐sensitive potassium channels ...
Yuri Osuga   +6 more
wiley   +1 more source

Some notes on improving upon the James-Stein estimator [PDF]

open access: yesJournal of Statistical Studies, 26 (2007), 77-84, 2007
We consider estimation of a multivariate normal mean vector under sum of squared error loss. We propose a new class of smooth estimators parameterized by \alpha dominating the James-Stein estimator. The estimator for \alpha=1 corresponds to the generalized Bayes estimator with respect to the harmonic prior.
arxiv  

The multiple roles of the NlpC_P60 peptidase family in mycobacteria – an underexplored target for antimicrobial drug discovery

open access: yesFEBS Letters, EarlyView.
The NlpC_P60 superfamily of peptidases is recognised by its key role in bacterial cell wall homeostasis. Recently, studies have also described the involvement of NlpC_P60‐like enzymes in bacterial competitive mechanisms and pathogenesis across several lineages.
Catharina dos Santos Silva   +1 more
wiley   +1 more source

Estimate nothing [PDF]

open access: yesQuantitative Finance, 2014
In the econometrics of financial time series, it is customary to take some parametric model for the data, and then estimate the parameters from historical data. This approach suffers from several problems. Firstly, how is estimation error to be quantified, and then taken into account when making statements about the future behaviour of the observed ...
M. Duembgen, L. C. G. Rogers
openaire   +3 more sources

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