Results 31 to 40 of about 219,363 (324)

Practical challenges in data‐driven interpolation: Dealing with noise, enforcing stability, and computing realizations

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView., 2023
Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley   +1 more source

Dynamics of intestinal parasite infection in Przewalski's horses reintroduced to Pre-Urals Steppe, Orenburg State Nature Reserve (Russia)

open access: yesNature Conservation Research: Заповедная наука, 2019
The first successful reintroduction programme for the Przewalski's horse in Russia was launched by FSFI «Orenburg Reserves» in 2015. A total of 36 Przewalski's horses were brought to the Pre-Urals Steppe site from semi-reserves in France and Hungary in ...
Tatjana L. Zharkikh   +7 more
doaj   +1 more source

Data‐driven performance metrics for neural network learning

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView., 2023
Summary Effectiveness of data‐driven neural learning in terms of both local mimima trapping and convergence rate is addressed. Such issues are investigated in a case study involving the training of one‐hidden‐layer feedforward neural networks with the extended Kalman filter, which reduces the search for the optimal network parameters to a state ...
Angelo Alessandri   +2 more
wiley   +1 more source

Programme on establishing a semi-free population of Przewalski's horse in Orenburg State Nature Reserve: the first successful project on the reintroduction of the species in Russia

open access: yesNature Conservation Research: Заповедная наука, 2019
The Przewalski's horse Equus ferus przewalskii is the only wild representative of the subgenus true horses left in the world. This article discusses the history of projects on the reintroduction of the Przewalski's horse in Russia and compares two ...
Rafilia T. Bakirova, Tatjana L. Zharkikh
doaj   +1 more source

Smart Farming Revolution: Portable and Real-Time Soil Nitrogen and Phosphorus Monitoring for Sustainable Agriculture

open access: yesSensors, 2023
Precision agriculture is crucial for ensuring food security in a growing global population. Nutrients, their presence, concentration, and effectiveness, are key components in data-driven agriculture.
Harpreet Singh   +5 more
doaj   +1 more source

Tau Propagation, Different Tau Phenotypes, and Prion-like Properties of Tau [PDF]

open access: yesNeuron, 2014
Sanders et al. (2014) demonstrate in this issue of Neuron that the natively unfolded protein tau can propagate indefinitely in distinct stable strains, therefore supporting the general idea that tau has prion-like properties, with implications for Alzheimer's disease and other tauopathies.
openaire   +3 more sources

Symmetric $(σ,τ)$-algebras and $(σ,τ)$-Hochschild cohomology [PDF]

open access: yesarXiv, 2023
On an associative algebra, we introduce the concept of symmetric $(\sigma,\tau)$-derivations together with a regularity condition and prove that strongly regular symmetric $(\sigma,\tau)$-derivations are inner. Symmetric $(\sigma,\tau)$-derivations are $(\sigma,\tau)$-derivations that are simultaneously $(\sigma,\tau)$-derivations as well as $(\tau ...
arxiv  

A survey of telerobotic surface finishing

open access: yesOpen Engineering, 2018
This is a survey of research published on the subjects of telerobotics, haptic feedback, and mixed reality applied to surface finishing. The survey especially focuses on how visuo-haptic feedback can be used to improve a grinding process using a remote ...
Höglund Thomas   +2 more
doaj   +1 more source

On the asymptotic assumptions for Milne-like spacetimes [PDF]

open access: yes, 2022
Milne-like spacetimes are a class of hyperbolic FLRW spacetimes which admit continuous spacetime extensions through the big bang, $\tau = 0$. The existence of the extension follows from writing the metric in conformal Minkowskian coordinates and assuming that the scale factor satisfies $a(\tau) = \tau + o(\tau^{1+\varepsilon})$ as $\tau \to 0$ for some
arxiv   +1 more source

Time for tau [PDF]

open access: yesBrain, 2014
It is almost exactly 10 years since the first report of a PET ligand that specifically bound to a pathological protein in the brain was published (Klunk et al. , 2004). This tracer, 11C-Pittsburgh compound B (PIB), detected fibrillar aggregated forms of amyloid-β, the major constituent of the Alzheimer’s disease plaque and, according to many, the ...
openaire   +4 more sources

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