Results 61 to 70 of about 13,457,474 (289)
Study of Total Electron Content-TEC and electron density profile during geomagnetic storms
, 2018 Total Electron Content (TEC) and electron density are the basic parameters, which determine the major properties of the Ionosphere. Detail study of the ionospheric TEC and electron density variations has been carried out during geomagnetic storms, with longitude and latitude, for four different locations: (24°W-14°W, 25°S-10°S); (53°W- 46°W, 04°N-14°N);
Bhattarai, Niraj +2 more
openaire +2 more sources
Total electron content (TEC) forecasting by Cascade Modeling: A possible alternative to the IRI‐2001 [PDF]
Radio Science, 2008 The ionospheric parameter, total electron content (TEC) is one of the key parameters in navigation and telecommunication applications. A small group at METU in Ankara has been developing data driven models in order to forecast the ionospheric parameters since 1990.
Erdem Turker Senalp +2 more
openaire +1 more source
Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks
Advanced Science, EarlyView.Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley +1 more source
Can we detect X/M/C-class solar flares from global navigation satellite system data?
Results in Physics, 2019 Based on the total electron content (TEC) data from global navigation satellite system (GNSS), we analyzed 224 classified solar flares (SFs) occurred in 2014–2017. We suggest an algorithm for SF automatic detection.
Semen V. Syrovatskiy +5 more
doaj +1 more source
Harmonic Analysis of Ionospheric Total Electron Content (TEC) Using Kalman Filter
Journal of Physics: Conference Series, 2019 Abstract The ionospheric diurnal variation from TEC Global Ionospheric Maps (GIM) data at the epicenter coordinates of the Lombok earthquake on July 29 2018 (-8.4°, 116.5°) has been analyzed using harmonic function which is the sum of the sine and cosine functions with estimated harmonic coefficients obtained using Kalman Filter (KF ...
Buldan Muslim +2 more
openaire +1 more source
Comparison of theoretical total electron content (TEC) during disturbance [PDF]
, 2010 The ionosphere layer is very important to the communication system and the Total Electron Content (TEC) plays an important role in the study of ionospheric behavior. This project involves the comparison of TEC simulated using theoretical models and real
Roziana, Binti Che Musa
core
Advanced Science, EarlyView.A dual‐interface strategy combining a solvent‐orthogonal Poly‐TPD buffer with UV–ozone tuning of PbS‐EDT reconstructs interfacial energetics and defect chemistry in PbS CQD photodiodes. The optimized interface suppresses shunt‐ and trap‐related leakage, reduces noise, and enables high‐detectivity near‐infrared detection with imaging capability ...
Chuan Wei +8 more
wiley +1 more source
Development and Evaluation of Near‐Real Time TEC and Ancillary Products for SANSA Space Weather
Space Weather, 2022 In this paper, the second version of SANSA's Total Electron Content (TEC) maps is presented with its associated methodology and assumptions. The method is based on Ma and Maruyama (2003, https://doi.org/10.5194/angeo-21-2083-2003) determination of ...
Tshimangadzo M. Matamba +1 more
doaj +1 more source
Ovarian Cancer Diagnosis and Chemoresistance Prediction Model Based on cfRNA Molecular Signature
Advanced Science, EarlyView.A deep learning model analyzes cfRNA profiles extracted from the blood of OVCA patients. This innovative approach distinguishes OVCA from healthy controls with high accuracy. Crucially, it reliably predicts patient response to chemotherapy (sensitive versus resistant subgroups).
Qinhao Guo +14 more
wiley +1 more source
Automatic Data Downloading Program (DDP) in Determining Regional Ionosphere Model
Journal of New Results in Science, 2018 GNSS (Global Navigation Satellite System) signals passthrough various layers of the atmosphere until they reach the receiver on theEarth. One of these layers is the Ionosphere. Ionosphere may be defined as theatmospheric layer that consists of the gasses
Cevat İnal +3 more
doaj