Results 131 to 140 of about 7,241 (305)
Results in EngineeringSignificant discrepancies have been observed between the measured attenuation induced by rain over mm-wave terrestrial links at very short communication paths and the predicted measurement by ITU-R P.530-18.
Asma Ali Budalal +6 more
doaj +1 more source
Measurement of Rain Attenuation of Microwaves at 12.25GHz in Korea [PDF]
, 2005 We present here the results of the measurements of rain-induced attenuation in the vertically polarized signal propagating at 12.25GHz during some rain events, which occurred in the rainy season of the year 2001 at Yong-in, Korea. The attenuation measured experimentally was compared with that obtained using the International Telecommunication Union ...
openaire +1 more source
Slant-Path Rain Attenuation Statistics over Nigeria
, 2013 Slant path attenuation of microwaves due to rainfall intensities exceeding 0.01 and 0.001per cent of average year have been computed for five different geographical zones in Nigeria, using relevant ITU-R recommendations and global rain rate data.
Adefolalu, DO, Oyedum, OD
core +1 more source
Nordic Journal of Botany, EarlyView.Dicrananthera C. Presl. is a monospecific genus of the tribe Marcetieae, comprising perennial herbs typically occurring in areas adjacent to wetlands. The species exhibits a disjunct distribution, with confirmed records in both the Amazon and Atlantic Forest domains.
Elias Julio Oliveira Correa +4 more
wiley +1 more source
, 2005 At frequencies above 10 GHz, one of the most important impairments on radio wave propagation is attenuation due to rain. This contribution is aimed to present an improved version of the EXCELL rain attenuation model [1], which, analogously to the ...
RIVA, CARLO GIUSEPPE +2 more
core
Nordic Journal of Botany, EarlyView.Meyna grisea and M. peltata, two new records from Imphal Valley, Manipur, India, characterised by a capitate stigma with 4–5 divergent, spreading lobes on a globose base, and a prominent peltate stigma, respectively, are described and illustrated here. Photographs, key to the species, along with their coordinates and diagnostic characters in comparison
Pallavi B. Dhal +3 more
wiley +1 more source
Modeling of rain and slant path rain attenuation
, 1999 The adverse impact of rain on the earth-satellite communications in the region has not been well characterized due to the lack of measured data. In view of the rapid introduction of new business and personal communications networks, based on satellite ...
Li, Feng Chun.
core
Nordic Journal of Botany, EarlyView.The new species Barleria kulalensis I.Darbysh. & Q.Luke and Dicliptera huriensis I.Darbysh. & Q.Luke are described and illustrated and their extinction risk is assessed provisionally. The former is based on Barleria sp. G of the Flora of Tropical East Africa (FTEA), with recent field observation and collection of this species from the foothills of ...
Iain Darbyshire, Quentin Luke
wiley +1 more source
Raindrop size distribution and radar reflectivity-rain rate relationships for radar hydrology
, 2001 The conversion of the radar reflectivity factor Z (mm6m-3) to rain rate R (mm h-1) is a crucial step in the hydrological application of weather radar measurements.
Uijlenhoet, R.
core
The effect of rain attenuation on S-band terrestrial links
, 2013 Past studies have established that in the S-band range of 2GHz, rain attenuation is negligible. However, every year, heavier rain intensities are being experienced in tropical countries like Malaysia due to current global warming conditions.
Thiagarajah, S. P. +9 more
core +1 more source