Results 1 to 10 of about 44,165 (198)

Evaluation of Czech hop varieties (Humulus lupulus L.) in a dry area without irrigation

open access: yesKvasný průmysl, 2023
Since 2017, a field experiment has been conducted in a dry area with 11 Czech hop varieties. The highest yields were achieved by the Uran variety (2.83 t/ha) and Saaz Shine variety (2.76 t/ha), which also exhibited the lowest yield variability, at 11.17%
Vladimír Nesvadba   +3 more
doaj   +1 more source

Comparison of two methods for assessment of the rod positioning uncertainty and consequences on the evaluation of correlation factors

open access: yesFrontiers in Energy Research, 2022
In this paper two major families of methods to deal with the assessment of the rod positioning uncertainty in a lattice are tested: a traditional one described in the International Handbook of Evaluated Criticality Safety Benchmark Experiments (IHECSBE ...
Nicolas Leclaire, John Darrell Bess
doaj   +1 more source

Methodological Support for Applying the Method of Majority Reservation in Measuring Channels

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2021
Introduction. For hazardous industries, the reliability of information and measuring equipment must ensure an almost complete absence of failure events, with their probability as low as 10-6.
N. V. Minchev
doaj   +1 more source

Balanço da adubação nitrogenada sólida e fluida de cobertura na cultura de milho, em sistema plantio direto no Triângulo Mineiro (MG)

open access: yesRevista Brasileira de Ciência do Solo, 2000
Foi desenvolvido um experimento com as fontes uréia e uran aplicadas superficialmente ou incorporadas (5-7 cm) na cobertura nitrogenada de milho, no sistema plantio direto, com o objetivo de efetuar, na colheita, um balanço do N-uréia (15N) e quantificar
W. A. R. Lara Cabezas   +3 more
doaj   +1 more source

USING THE BROADBAND DIGITAL RECEIVERS IN INTERFEROMETER OBSERVATIONS WITH THE URAN NETWORK

open access: yesRadio Physics and Radio Astronomy, 2017
Purpose: The goal of the work is improving the efficiency of interferometric studies of cosmic radio sources at decameter waves. Design/methodology/approach: The URAN interferometer network observations are made usually at frequencies of 20 and 25 MHz
V. A. Shepelev   +4 more
doaj   +1 more source

Radio seismology of the outer solar corona [PDF]

open access: yes, 2013
Observed oscillations of coronal loops in EUV lines have been successfully used to estimate plasma parameters in the inner corona (< 0.2 R_0, where R_0 is the solar radius).
Brazhenko, A. I.   +7 more
core   +1 more source

Corn Yield and Soil Nitrous Oxide Emission under Different Fertilizer and Soil Management: A Three-Year Field Experiment in Middle Tennessee.

open access: yesPLoS ONE, 2015
BackgroundA three-year field experiment was conducted to examine the responses of corn yield and soil nitrous oxide (N2O) emission to various management practices in middle Tennessee.Methodology/principal findingsThe management practices include no ...
Qi Deng   +8 more
doaj   +1 more source

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

open access: yesRadio 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   +3 more
doaj   +1 more source

SOFTWARE FOR ADAPTING DSPZ RECEIVERS TO THE URAN INTERFEROMETER NETWORK

open access: yesOdessa 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   +2 more
doaj   +1 more source

ALGORITHMS OF MULTI FREQUENCY RADIOMETRY IN THE CONDITIONS OF BROADBAND INTERFERENCE

open access: yesOdessa 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   +2 more
doaj   +1 more source

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