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INFLUENCE OF SKY CONDITIONS ON ESTIMATION OF PHOTOSYNTHETIC PHOTON FLUX DENSITY FOR AGRICULTURAL ECOSYSTEM
PPFD PAR Solar radiation PAR fraction Quantum-to-energy ratio Diffuse ratio Clearness index Sky conditions
2018/5/16
Photosynthetic photon flux density (PPFD: μmol m−2 s−1) is indispensable for plant physiology processes in photosynthesis. However, PPFD is seldom measured, so that PPFD ...
LINEAR POLARIZATION AND TOTAL FLUX DENSITY OF SILICON MONOXIDE MASERS AND ACTIVE EXTRAGALACTIC OBJECTS AT MILLIMETER WAVELENGTHS
Millimeter-wave wireless resources Linear polarization Radio astronomy observatory telescope Maser The Milky Way
2014/12/10
In order to investigate the linear polarization properties of millimeter-wave radio sources, a polarimeter was constructed for use on the Five College Radio Astronomy Observatory 14m telescope. Linear...
Formulas for computing the magnetic flux density of fine magnetic pole pitch fabricated on printed circuit board
Printed circuit board (PCB) Pole pitch Magnetization Magnetic encoder
2011/11/25
A special wire circuit with an appropriate layout was designed and formed on printed circuit board (PCB). After a current flowed through the wire circuit, the magnetic field was induced according to A...
Formulas for computing the magnetic flux density of fine magnetic pole pitch fabricated on printed circuit board
Printed circuit board (PCB) Pole pitch Magnetization Magnetic encoder
2011/11/25
A special wire circuit with an appropriate layout was designed and formed on printed circuit board (PCB). After a current flowed through the wire circuit, the magnetic field was induced according to A...
Flux density measurements of a complete sample of faint blazars
fl ux density spectral index polarisation – galaxies quasars BL Lacs radio continuum galaxies
2011/10/18
We performed observations with the Effelsberg 100-m radio telescope to measure flux densities and polarised emission of sources selected from the "Deep X-ray Radio Blazar Survey" (DXRBS) to better def...
THE RELATION BETWEEN RADIO FLUX DENSITY AND IONISING ULTRA-VIOLET FLUX FOR HII REGIONS AND SUPERNOVA REMNANTS IN THE LARGE MAGELLANIC CLOUD
Galaxies Magellanic Clouds-ISM HII regions-ISM supernova remnants-radio continuum galaxies-ultraviolet galaxies
2009/3/12
We present a comparison between the Parkes radio surveys (Filipovi
´c et al. 1995) and Vacuum Ultra-Violet (VUV) surveys (Smith et al. 1987)
of the Large Magellanic Clouds (LMC). We have found...
Comparison of two- and three-electrode systems in measurements of potential oxygen flux density in soil*
soil aeration soil oxygen flux ODR OFD
2008/11/24
This paper presents a comparison of the results of potential flux of oxygen in soil, determined by the voltammetric method, OFD, with the use of a three-electrode set of electrodes in the system of po...
Chronovoltammetric determination of oxygen flux density in the soil
oxygen diffusion rate determination ODR of soil soil aeration oxygen flux density
2008/11/21
A chronovoltammetric method for the determination of oxygen flux density (OFD) in the soil is proposed. The method is based on the current-potential relationship recorded on a platinum indicator elect...
Determination of the background current in electrochemical measurements of oxygen flux density in organic soils
oxygen flux density in the soil measurements ODR OFD
2008/11/21
The aims of this paper were: to state if the soluble substances contained in organic or organic-mineral soils can reduce in the same range of potentials as oxygen, falsifying (revaluing) the results ...
Influence of clouds on the spectral actinic flux density in the lower troposphere (INSPECTRO): overview of the field campaigns
clouds spectral actinic flux lower troposphere field campaigns
2008/11/3
Ultraviolet radiation is the key factor driving tropospheric photochemistry. It is strongly modulated by clouds and aerosols. A quantitative understanding of the radiation field and its effect on phot...