33 research outputs found
Kulturpflanzen und Hausthiere in ihrem Übergang aus Asien nach Griechenland und Italien sowie in das übrige Europa : historisch-linquistische Skizzen
http://tartu.ester.ee/record=b1820269~S1*es
Über die Physionomie der italienischen Landschaft : Einladungsschrift zu dem Examen in der höhern Kreisschule zu Pernau am 28. Juni 1844
http://tartu.ester.ee/record=b1721380~S1*es
Nanoengineered magnetic-field-induced superconductivity
The perpendicular critical fields of a superconducting film have been
strongly enhanced by using a nanoengineered lattice of magnetic dots (dipoles)
on top of the film. Magnetic-field-induced superconductivity is observed in
these hybrid superconductor / ferromagnet systems due to the compensation of
the applied field between the dots by the stray field of the dipole array. By
switching between different magnetic states of the nanoengineered field
compensator, the critical parameters of the superconductor can be effectively
controlled.Comment: 4 pages, 4 figure
Aus Baltischer Geistesarbeit Bd.2, H.8
http://tartu.ester.ee/record=b1318718~S1*es
Encoding information onto the charge and spin state of a paramagnetic atom using MgO tunnelling spintronics
An electrical current that flows across individual atoms or molecules can
generate exotic quantum-based behavior, from memristive effects to Coulomb
blockade and the promotion of quantum excited states. These fundamental effects
typically appear one at a time in model junctions built using atomic tip or
lateral techniques. So far, however, a viable industrial pathway for such
discrete state devices has been lacking. Here, we demonstrate that a
commercialized device platform can serve as this industrial pathway for quantum
technologies. We have studied magnetic tunnel junctions with a MgO barrier
containing C atoms. The paramagnetic localized electrons due to individual C
atoms generate parallel nanotransport paths across the micronic device as
deduced from magnetotransport experiments. Coulomb blockade effects linked to
tunnelling magnetoresistance peaks can be electrically controlled, leading to a
persistent memory effect. Our results position MgO tunneling spintronics as a
promising platform to industrially implement quantum technologies
The FLUXNET2015 dataset and the ONEFlux processing pipeline for eddy covariance data
The FLUXNET2015 dataset provides ecosystem-scale data on CO2, water, and energy exchange between the biosphere and the atmosphere, and other meteorological and biological measurements, from 212 sites around the globe (over 1500 site-years, up to and including year 2014). These sites, independently managed and operated, voluntarily contributed their data to create global datasets. Data were quality controlled and processed using uniform methods, to improve consistency and intercomparability across sites. The dataset is already being used in a number of applications, including ecophysiology studies, remote sensing studies, and development of ecosystem and Earth system models. FLUXNET2015 includes derived-data products, such as gap-filled time series, ecosystem respiration and photosynthetic uptake estimates, estimation of uncertainties, and metadata about the measurements, presented for the first time in this paper. In addition, 206 of these sites are for the first time distributed under a Creative Commons (CC-BY 4.0) license. This paper details this enhanced dataset and the processing methods, now made available as open-source codes, making the dataset more accessible, transparent, and reproducible.Peer reviewe
Gedanken über Goethe. [T. 1]
http://www.ester.ee/record=b4035457*es