نتایج جستجو برای: electrical sounding

تعداد نتایج: 198576  

Journal: :Electrical Engineering & Electromechanics 2021

The paper is devoted to the problem of determining geoelectric structure soil within procedure testing grounding arrangements existing power plants and substations required depth in conditions dense development. To solve problem, it was proposed use Schlumbergers method , which has a greater sounding compared Wenner electrode array. purpose work develop mathematical model for interpreting resul...

2007
J. M. Choi J. H. Lee

A sounding subband allocation algorithm is proposed for a proportional fair (PF) scheduler in an OFDMA=FDD uplink. The proposed sounding algorithm tries to provide a PF scheduler with more proper channel state information of multiple users by using an estimated PF metric. It is shown that the proposed sounding subband allocation algorithm enables the PF scheduler to achieve the throughput gain ...

2014
Kwame Nkrumah

Continuous vertical electrical sounding (CVES) surveys were carried out on KNUST campus to ascertain the electrical properties of the formations in the area in order to determine its suitability for the construction of heavy structures. Eight 2D CVES profiles were conducted at the site in the study area with a wenner array using electrode separations of 1, 2.5 and 4 m. The apparent resistivity ...

2009
R. E. Grimm

Introduction. Electromagnetic (EM) sounding of the Moon and the Galilean satellites has yielded important insights on the interior structures of these bodies [e.g., 1-7]. These investigations measured magnetic fields only and required auxiliary information on the nature of the source fields. The magnetotelluric (MT) method, by measuring both magnetic and electric fields, can perform soundings f...

2015
Kerrie Dougherty

Sounding rocket programs for upper atmospheric research (UAR) commenced at Woomera in 1957, with the British Skylark project and the Anglo-Australian HARP rockoon program. Shortly afterwards, the Weapons Research Establishment (WRE) inaugurated its own sounding rocket program with the first successful Australian-built sounding rocket, Long Tom, developed from surplus British motors. This resear...

Journal: :VNU Journal of Science: Mathematics - Physics 2018

2013
David E. STILLMAN Joseph A. MacGREGOR Robert E. GRIMM Katherine G. Jackson

The electrical properties of water ice impact the study of diverse frozen environments, in particular the radar sounding of ice masses. The high-frequency response of meteoric polar ice depends partly on the bulk concentration of ammonium (NH4 ), but the nature of this response has been unclear. Here we use broadband dielectric spectroscopy to investigate the electrical response of laboratoryfr...

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