Slant Removal Technique for Historical Document Images [PDF]
Journal of Imaging, 2018 Slanted text has been demonstrated to be a salient feature of handwriting. Its estimation is a necessary preprocessing task in many document image processing systems in order to improve the required training.
Ergina Kavallieratou +2 more
doaj +4 more sources
Germination and seedling establishment for hydroponics: The benefit of slant boards.
PLoS ONE, 2022 Germination and seedling establishment for transplanting into hydroponics often uses porous substrates, but fine roots grow into these substrates, and they cannot be removed without damaging these roots.
Noah James Langenfeld, Bruce Bugbee
doaj +2 more sources
Coupling a weather model directly to GNSS orbit determination – case studies with OpenIFS [PDF]
Geoscientific Model Development, 2022 Neutral gas atmosphere bends and delays propagation of microwave signals in satellite-based navigation. Weather prediction models can be used to estimate these effects by providing three-dimensional refraction fields to ray-trace the signal delays.
A. Navarro Trastoy +6 more
doaj +1 more source
Sentinel-5P TROPOMI NO2 retrieval: impact of version v2.2 improvements and comparisons with OMI and ground-based data [PDF]
Atmospheric Measurement Techniques, 2022 Nitrogen dioxide (NO2) is one of the main data products measured by the Tropospheric Monitoring Instrument (TROPOMI) on the Sentinel-5 Precursor (S5P) satellite, which combines a high signal-to-noise ratio with daily global coverage and high spatial ...
J. van Geffen +13 more
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An improved retrieval of tropospheric NO2 from space over polluted regions using an Earth radiance reference [PDF]
Atmospheric Measurement Techniques, 2015 A novel tropospheric NO2 DOAS retrieval algorithm optimised for a nadir-viewing satellite instrument imaging polluted areas is proposed in this work.
J. S. Anand, P. S. Monks, R. J. Leigh
doaj +1 more source
Advances in Information Extraction of Surface Parameters Using Tomographic SAR
Leida xuebao, 2021 Traditional Synthetic Aperture Radar (SAR) imaging is the projection of a real three-dimensional scene onto a two-dimensional domain of azimuth and slant range, which results in the loss of the high-dimensional information.
Zhen LI +5 more
doaj +1 more source
Non-pumping reactive wells filled with mixing nano and micro zero-valent iron for nitrate removal from groundwater: Vertical, horizontal, and slanted wells [PDF]
Journal of Contaminant Hydrology, 2018 Non-pumping reactive wells (NPRWs) filled by zero-valent iron (ZVI) can be utilized for the remediation of groundwater contamination of deep aquifers. The efficiency of NPRWs mainly depends on the hydraulic contact time (HCT) of the pollutant with the reactive materials, the extent of the well capture zone (Wcz), and the relative hydraulic conductivity
Seiyed Mossa Hosseini +3 more
openaire +4 more sources
Proposal and examination of method of water removal from gas diffusion layer by applying slanted microgrooves inside gas channel in separator to improve polymer electrolyte fuel cell performance [PDF]
Journal of Power Sources, 2015 Abstract The objective of this study was to improve the management of moisture from the gas diffusion layer (GDL) in the gas channel of a separator for PEFC. At the cathode-side, oxygen is transported as reactant gas from gas channel through GDL. When large quantity of moisture is generated during high power generation, moisture blocks transport of ...
Utaka, Yoshio +2 more
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Tropospheric nitrogen dioxide column retrieval from ground-based zenith–sky DOAS observations [PDF]
Atmospheric Measurement Techniques, 2015 We present an algorithm for retrieving tropospheric nitrogen dioxide (NO2) vertical column densities (VCDs) from ground-based zenith–sky (ZS) measurements of scattered sunlight.
F. Tack +8 more
doaj +1 more source
A low power automated MAX-DOAS instrument for the Arctic and other remote unmanned locations [PDF]
Atmospheric Measurement Techniques, 2010 Multiple Axis Differential Optical Absorption Spectrometer (MAX-DOAS) systems are inherently very simple instruments, which have been shown to provide extremely useful information about a wide variety of environmental parameters.
D. Carlson +3 more
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