The sensing coil of the proton precession magnetometer carried on the Vanguard III satellite also served as an antenna for detecting audio‐frequency electromagnetic waves. A preliminary analysis is given for about one hundred whistlers observed September 18 through December 12, 1959, at low latitudes over the altitude range 510 to 3750 km. About 90 per cent of the whistler occurrences are between 6 PM and 6 AM local time indicating a low nighttime absorption by the ionosphere. The intensity of the H component of the wave is estimated to be between 0.01 and 0.5 gamma, with that of a few signals exceeding 1 gamma.
An analysis was made of the scalar proton magnetometer observations taken September through December 1959 by the satellite Vanguard 3 (1959v). The measurements were taken near receiving stations at geographic latitudes less than 33.5 ø •nd within the altitude limits 510 to 3753 kin. Average daily storm-time (Dst) changes of the field correlate positively with those from surface observatories, showing that their sources are definitely above 510 km and very likely above 2400 kin. It was found possible to fit the observations to an rms error of 21 • or 0.1 per cent by means of a set of 63 harmonic coefficients with a potential function of only internal origin. Because of the slow change of the orbital plane in local time it was not possible to obtain information on diurnal variations. 5055
By applying homogeneous bias fields to a proton precessional magnetometer, vector magnetic field measurements of exceptional accuracy can be obtained. A vector proton magnetometer that has been in operation at nine Minitrack stations since the spring of 1958 is described.
Applications based on scholarly data are of ever increasing importance. This results in disadvantages for areas where high-quality data and compatible systems are not available, such as non-English publications. To advance the mitigation of this imbalance, we use Cyrillic script publications from the CORE collection to create a high-quality data set for metadata extraction. We utilize our data for training and evaluating sequence labeling models to extract title and author information. Retraining GROBID on our data, we observe significant improvements in terms of precision and recall and achieve even better results with a self developed model. We make our data set covering over 15,000 publications as well as our source code freely available. 1
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.