Results 1 to 10 of about 3,982,556 (223)
Effect of Trends on Detrended Fluctuation Analysis [PDF]
Physical Review E, vol. 64, 011114, 2001, 2001 Detrended fluctuation analysis (DFA) is a scaling analysis method used to estimate long-range power-law correlation exponents in noisy signals. Many noisy signals in real systems display trends, so that the scaling results obtained from the DFA method become difficult to analyze.
A. Bunde +62 more
arxiv +5 more sources
Susceptibility of Commercial-Off-The-Shelf Sensors to IEMI using Pulse Modulated Signals [PDF]
Advances in Radio Science, 2023 The use of sensors has grown dramatically in recent years and many devices rely on the information they provide. The lack of proper security mechanisms available to control the use of sensors and the high degree of integration make them more vulnerable ...
L. Cesbron Lavau +3 more
doaj +1 more source
Vulnerability of Smart Grid-enabled Protection Relays to IEMI [PDF]
Advances in Radio Science, 2023 The electricity sector has been undergoing transformations towards the smart grid concept, which aims to improve the robustness, efficiency, and flexibility of the power system.
F. Arduini +5 more
doaj +1 more source
Trend analysis and outlier distribution of CO2 and CH4: A case study at a rural site in northern Spain [PDF]
, 2022 Producción CientíficaCO2 and CH4 outliers may have a noticeable impact on the trend of both gases. Nine years of measurements since 2010 recorded at a rural site in northern Spain were used to investigate these outliers.
García Pérez, María Ángeles +3 more
core +1 more source
Definition and test of the electromagnetic immunity of UAS for first responders [PDF]
Advances in Radio Science, 2015 Recent technological developments considerably lowered the barrier for unmanned aerial systems (UAS) to be employed in a variety of usage scenarios, comprising live video transmission from otherwise inaccessible vantage points.
C. Adami +4 more
doaj +1 more source
MULTISCALE TREND ANALYSIS [PDF]
Fractals, 2004 This paper introduces a multiscale analysis based on optimal piecewise linear approximations of time series. An optimality criterion is formulated, and on its base, a computationally effective algorithm is constructed for decomposition of a time series into a hierarchy of trends (local linear approximations) at different scales.
Vladimir Keilis-Borok +3 more
openaire +4 more sources
Summer sudden Na number density enhancements measured with the ALOMAR Weber Na Lidar [PDF]
Annales Geophysicae, 2008 We present summer Na-densities and atmospheric temperatures measured 80 to 110 km above the Arctic Lidar Observatory for Middle Atmosphere Research (ALOMAR).
D. Heinrich +6 more
doaj +1 more source
Atmosphere, 2023 This study analyzed the changes and trends in twelve extreme precipitation-based climate indices obtained using daily data from 10 synoptic stations in the Chungcheong region of South Korea during the 1973–2020 period.
Hyungon Cho +3 more
doaj +1 more source
Pollutants, 2023 Mosses are suitable for recording the bioaccumulation of atmospheric deposition over large areas at many sites. In Europe, such monitoring has been carried out every five years since 1990.
Winfried Schröder +3 more
doaj +1 more source
Environmental Sciences Proceedings, 2023 In the present study, the introduction of the Innovative Polygon Trend Analysis (IPTA), a non-parametric trend analysis methodology, is proposed as an alternative to the classical trend analysis methodology, according to which processes (normality ...
Petroula Karacosta +3 more
doaj +1 more source