Results 11 to 20 of about 10,118 (201)

IMPACT OF THE NOVEMBER 3, 2013 SOLAR ECLIPSE ON THE STATE OF THE IONOSPHERE AS INVESTIGATED IN A RADIO ASTRONOMICAL TECHNIQUE [PDF]

Radio Physics and Radio Astronomy
Subject and Purpose. This work examines eff ects of the November 3, 2013 solar eclipse, in particular the atypical increases in the level of radio interference and scintillations of the radio sources 3C 123 and Cas-A that were observed at 25 MHz.
A. L. Sukharev, M. I. Ryabov, V. V. Galanin, D. A. Zabora   +3 more
doaj   +1 more source

ALGORITHMS OF MULTI FREQUENCY RADIOMETRY IN THE CONDITIONS OF BROADBAND INTERFERENCE

Odessa Astronomical Publications, 2018
The development of digital technologies for multi-frequency signal reception in the low-frequency range creates the prerequisites for the application of optimal algorithms for real-time beamforming without changing the aperture of the radio telescope ...
V. V. Orlov, O. A. Lytvynenko, V. V. Galanin   +2 more
doaj   +1 more source

SOFTWARE FOR ADAPTING DSPZ RECEIVERS TO THE URAN INTERFEROMETER NETWORK

Odessa Astronomical Publications, 2017
More than 10 years ago, URAN interferometer  network  (Megn  A.V.,1997;  Konovalenko  A.A., 2014)  had  been  equipped  with  newly  designed  receivers with a pass band extended up to 250 kHz and software rejection of interferences (Rashkovskii, 2012 ...
E. A. Isaeva, O. A. Lytvynenko, V. A. Shepelev   +2 more
doaj   +1 more source

Project of the URAN array for registration of atmospheric neutrons

, 2016
The project of a new setup is directed at the registration of atmospheric neutrons (URAN) generated by hadronic component of extensive air showers (EAS).
D. Gromushkin, N. Barbashina, F. A. Bogdanov, R. Kokoulin, V. Ovchinnikov, A. Petrukhin, Y. Stenkin, S. Khokhlov, I. Shulzhenko, I. Yashin   +9 more
semanticscholar   +1 more source

Produtividade da cana-de-açúcar relacionada à localização de adubos nitrogenados aplicados sobre os resíduos culturais em canavial sem queima Sugar cane yield as related to the location of nitrogen fertilizer applied on top of unburnt sugar cane residues

Revista Brasileira de Ciência do Solo, 2007
O conhecimento agronômico a respeito do manejo adequado de canaviais sem queima da palha, ainda é limitado, principalmente, no que se refere à adubação nitrogenada.
André Cesar Vitti, Paulo Cesar Ocheuze Trivelin, Glauber José de Castro Gava, Henrique Coutinho Junqueira Franco, Isabela Rodrigues Bologna, Carlos Eduardo Faroni   +5 more
doaj   +1 more source

Unsupervised Region Attention Network for Person Re-Identification

IEEE Access, 2019
As supervised person re-identification (Re-Id) requires massive labeled pedestrian data and it is very difficult to collect sufficient labeled data in reality, unsupervised Re-Id approaches attract much more attention than the former.
Chenrui Zhang, Yangxu Wu, Tao Lei
doaj   +1 more source

DISTRIBUTION OF THE OCCURRENCE OF THE INTENSIVE IONOSPHERE SCINTILLATIONS ON THE OBSERVATIONS OF THE COSMIC RADIO SOURCES AT THE DECAMETER WAVE RANGE

Odessa Astronomical Publications, 2020
Effect of scintillations arises in the result of interaction of radio signal from the cosmic radio source with irregularities of ionosphere plasma which appears at the registration of observations as amplitude fluctuations.
O. A. Lytvynenko, S. K. Panishko
doaj   +1 more source

Monitoring of Pollution Using Density, Biomass and Diversity Indices of Macrobenthos from Mangrove Ecosystem of Uran, Navi Mumbai, West Coast of India

, 2015
In this study, density, biomass and diversity indices of selected macrobenthos were assessed from substations along Sheva creek and Dharamtar creek mangrove ecosystems of Uran [Raigad], Navi Mumbai, west coast of India from April 2009 to March 2011.
P. Pawar
semanticscholar   +1 more source

STRUCTURE OF VARIABILITY INDEXES OF COSMIC WEATHER AS APPLIED TO DATA MONITORING OF FLUXES OF RADIO SOURCES AT THE “URAN-4” RADIO TELESCOPE

Radio Physics and Radio Astronomy, 2017
Purpose: Investigation of the effects of the influence of solar and geomagnetic activity on the state of the Earth’s upper atmosphere by the method of “transmission through” it with the radiation of cosmic radio sources.
L. I. Sobitniak, M. I. Ryabov, A. L. Sukharev, S. K. Panishko   +3 more
doaj   +1 more source

Evaluation of variability of the content of alpha and beta acids in Czech bittering hop varieties (Humulus lupulus L.)

Kvasný průmysl, 2023
Czech bitter varieties were evaluated between 2010 and 2022. Hop varieties displayed an average content of alpha acids between 10.24% w/w (Agnus) and 13.73% w/w (Gaia).
Vladimír Nesvadba, Lenka Straková, Gabriela Fritschová, Jana Olšovská, Jitka Charvátová, Sabina Trnková   +5 more
doaj   +1 more source