Friday Gabriel (8 results)
- Softcover
Seller: PBShop.store US, Wood Dale, IL, U.S.A.PBShop.store US
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- Softcover
Seller: PBShop.store UK, Fairford, GLOS, United KingdomPBShop.store UK
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- Softcover
Seller: AHA-BUCH GmbH, Einbeck, GermanyAHA-BUCH GmbH
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- Softcover
- Print on Demand
Seller: California Books, Miami, FL, U.S.A.California Books
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- Softcover
Seller: preigu, Osnabrück, Germanypreigu
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Taschenbuch. Condition: Neu. Estimation of Refractivity | Estimation of Refractivity Using Artificial Neural Network and ITU-R models with Atmospheric Parameters At Nigeria | Gabriel Friday Ibeh (u. a.) | Taschenbuch | Englisch | LAP Lambert Academic Publishing | EAN 9783659135224 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.…
- Softcover
Seller: Mispah books, Redhill, SURRE, United KingdomMispah books
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- Softcover
- Print on Demand
Seller: AHA-BUCH GmbH, Einbeck, GermanyAHA-BUCH GmbH
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Taschenbuch. Condition: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - The refractivity profile variation in tropospheric is one of the aspects that influences long-distance terrestrial electromagnetic wave propagation and performance of communication systems. This study is aimed at calculation and estimation of refractivity with tropospheric parameters of relative humidity, absolute temperature and atmospheric pressure using ITU-R model and artificial neural network model for January and October at Minna and Abuja, Nigeria. Validation results are thus, January at Minna: absolute temperature = 0.4313 K, relative humidity = 0.9989 %, pressure = 0.0201 (hpa), and October: absolute temperature = - 0.3146 K, relative humidity = 0.9597 % and pressure = 0.1962 respectively. While January at Abuja: absolute temperature = 0.6907 K, relative humidity = 0.9929 %, pressure = 0.3947 (hpa), and October: absolute temperature = - 0.4291 K, relative humidity = 0.9452 and pressure = -0.5344 respectively. The validation of the correlation coefficient results shows that all the tropospheric parameters have effects on refractivity, but relative humidity has more effect and is merely on October which was attributed to the large quantity of moisture at the troposphere.…
- Softcover
- Print on Demand
Seller: moluna, Greven, Germanymoluna
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Condition: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Ibeh Gabriel FridayI am, Ibeh Gabriel Friday, from Idumuesah in Ika North East L.G.A, Delta State, Nigeria. I hold B.Sc Industrial Physics, M.Sc Atmospheric Geophysics, all from Ebonyi State University, Abakaliki, Ebonyi State, Nige.…
