scholarly journals Measurement of electron concentration in the lower ionosphere by the method of incoherent scattering

2002 ◽  
Vol 8 (2s) ◽  
pp. 180-183
Author(s):  
Yu.V. Chernyak ◽  
Keyword(s):  
Electron Concentration ◽  
Lower Ionosphere ◽  
Incoherent Scattering

scholarly journals FORMATION OF THE WORLD NETWORK OF SCIENTIFIC CENTERS FOR THE STUDY OF THE IONOSPHERE BY THE INCONHERENT SCATTERING METHOD

2021 ◽  
pp. 53-58
Author(s):  
Nataliia Kuzmenko ◽  
Olena Levon ◽  
Sergey Kozlov ◽  
Sergey Rumar
Keyword(s):  
Experimental Research ◽  
Electron Concentration ◽  
Accurate Method ◽  
Incoherent Scattering ◽  
Global Network ◽  
Scattering Method ◽  
Stages Of Development ◽  
The World ◽  
Almost All ◽  
American Scientist

The article considers the stages of development of the theory of the method of incoherent scattering as one of the methods of studying the ionosphere. The preconditions for the establishment of scientific centers for ionosphere observation by the method of incoherent scattering, the creation and development of an experimental research base and the formation of a global network of such institutions are highlighted. The idea of ​​the HP method belongs to the American scientist William Gordon. The HP method has become the most informative and accurate method of studying almost all the characteristics of the ionosphere. It made it possible to measure the electron concentration below and above the main maximum, which was impossible with vertical sounding. The advantage of the HP method is that a significant number of characteristics of the ionosphere could be measured simultaneously in a significant range of altitudes. This equates to launching a well-equipped geophysical missile. The duration of such studies compared to episodic missile observations makes this method unique. Today the method is considered the most informative and accurate.

Dynamical processes in the lower ionosphere

2003 ◽  
Vol 8 (5-6) ◽  
pp. 76-80 ◽  
Author(s):  
S.V. Panasenko ◽  
◽  
V.T. Rozumenko ◽  
O.F. Tyrnov ◽  
L.F. Chernogor ◽  
...  
Keyword(s):  
Lower Ionosphere ◽  
Dynamical Processes

A New Condition of Formation and Stablity of All Crystalline Systems in a Good Agreement with Experimental Data

2015 ◽  
Vol 11 (3) ◽  
pp. 3224-3228
Author(s):  
Tarek El-Ashram
Keyword(s):  
Experimental Data ◽  
Brillouin Zone ◽  
Electron Concentration ◽  
Free Electron ◽  
Lattice Point ◽  
Valence Electron ◽  
Fermi Gas ◽  
Valence Electron Concentration ◽  
Fermi Sphere ◽  
Good Agreement

In this paper we derived a new condition of formation and stability of all crystalline systems and we checked its validity andit is found to be in a good agreement with experimental data. This condition is derived directly from the quantum conditionson the free electron Fermi gas inside the crystal. The new condition relates both the volume of Fermi sphere VF andvolume of Brillouin zone VB by the valence electron concentration VEC as ;𝑽𝑭𝑽𝑩= 𝒏𝑽𝑬𝑪𝟐for all crystalline systems (wheren is the number of atoms per lattice point).

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