In this work, a solar illumination model of the Earth’s atmosphere is developed. The developed allows us to determine with extreme accuracy how atmospheric varies during night hours on global scale. This time-dependent variation in causes series sudden changes entire Earth-atmosphere-ionosphere system considerable interest for various research sectors and applications related climate change, io...

Tectorigenin (Tec) is an effective component of the traditional Chinese medicine Belamcanda chinensis, which has been reported to exert beneficial effects in various types of cancer. However, the activity and mechanism of Tec in osteosarcoma (OS) have not been investigated to date. The aim of the present study was to examine the inhibitory effect of Tec on OS and its underlying mechanism of act...

The Earth’s ionospheric perturbation waves, produced by its characteristic eigenfrequencies exciting the ground after and earthquake and vertically propagating upwards, have been of high interest in modern seismology. They allow us to model variations in the total electron content (TEC) of the ionosphere. Today, most of these so called ’normal modes’ are known and detailed catalogues listing (a...

[1] We have developed a new method for extracting ionospheric parameters from broadband RF data collected in low‐Earth orbit using coherent matched filters. The coherent matched filter uses the full time series of the electric field and matches the Fourier transform of these data with an ionospheric transfer function. This approach was applied to both lightning and human‐made data transmitted o...

This article examines whether there are gender differences in understanding the emotions evaluated by the Test of Emotion Comprehension (TEC). The TEC provides a global index of emotion comprehension in children 3-11 years of age, which is the sum of the nine components that constitute emotion comprehension: (1) recognition of facial expressions, (2) understanding of external causes of emotions...

Original scientific paper For all scientific studies, for processing analytical data the subject of outliers is of critical importance. The accuracy of Total Electron Content (TEC) models obtained from ground based Global Positioning Systems (GPS) data is strongly affected by some factors such as satellite geometry, cut-off angle, ionospheric shell height, quantity of GPS data etc. Probable out...

[1] With the advent of the Global Positioning System (GPS) measurements (from both ground-based and satellite-based receivers), the number of available ionospheric measurements has dramatically increased. Total electron content (TEC) measurements from GPS instruments augment observations from more traditional ionospheric instruments like ionospheric sounders and Langmuir probes. This volume of ...

The total electron content (TEC) over the Iberian Peninsula was modelled using PCA-MRM models based on decomposition of observed TEC series principal component analysis (PCA) and reconstruction daily modes’ amplitudes by a multiple linear regression model (MRM) space weather parameters as regressors. following are used: proxies for solar UV XR fluxes, number flares different classes, wind inter...

The Global Positioning System (GPS) makes it possible to study the dynamics of the ionosphere by supplementing ionospheric studies carried out using various techniques including ionosondes, incoherent scatter radars and low earth orbit satellites. Total electron content derived from GPS data (GPS TEC) is a key parameter characterising the ionosphere. Its time evolution provides an indication of...

A heat transfer model that couples radiation/conduction/convection heat transfer with electrical potential distribution is developed for a thermoelectric converter (TEC) subjected to concentrated solar radiation. The 4-leg TEC module consists of two pairs of ptype La1.98Sr0.02CuO4 and n-type CaMn0.98Nb0.02O3 legs that are sandwiched between two ceramic Al2O3 hot/cold plates and connected electr...