Results 11 to 20 of about 208,045 (268)

Spatially Dependent Electromagnetically Induced Transparency [PDF]

Physical Review Letters, 2015
Recent years have seen vast progress in the generation and detection of structured light, with potential applications in high capacity optical data storage and continuous variable quantum technologies. Here we measure the transmission of structured light through cold rubidium atoms and observe regions of electromagnetically induced transparency (EIT ...
Radwell, N., Clark, T. W., Piccirillo, B., Barnett, S. M., Franke-Arnold, S.   +4 more
openaire   +4 more sources

Geospatial Analysis of Scour in Offshore Wind Farms

Energies, 2023
Climate change has highlighted the need to promote renewable energies. The offshore wind industry is growing exponentially because of some political strategies supported by various organizations, such as the European Union.
Clara Matutano Molina, Christian Velasco-Gallego, Nerea Portillo-Juan, Vicente Negro Valdecantos, Nieves Cubo-Mateo   +4 more
doaj   +1 more source

Spbsampling: An R Package for Spatially Balanced Sampling

Journal of Statistical Software, 2022
The basic idea underpinning the theory of spatially balanced sampling is that units closer to each other provide less information about a target of inference than units farther apart.
Francesco Pantalone, Roberto Benedetti, Federica Piersimoni   +2 more
doaj   +1 more source

Exploring spatiotemporal pattern in the association between short-term exposure to fine particulate matter and COVID-19 incidence in the continental United States: a Leroux-conditional-autoregression-based strategy

Frontiers in Public Health, 2023
BackgroundNumerous studies have demonstrated that fine particulate matter (PM2.5) is adversely associated with COVID-19 incidence. However, few studies have explored the spatiotemporal heterogeneity in this association, which is critical for developing ...
Shiyi Liu, Shuming Ji, Jianjun Xu, Yujing Zhang, Han Zhang, Jiahe Liu, Donghao Lu   +6 more
doaj   +1 more source

Proposal and validation of geostatistical-based metrics to quantify within-field variability [PDF]

Revista Brasileira de Ciência do Solo
Metrics are fundamental to quantify and classify the spatial dependence of soil and agricultural attributes. This study aimed to propose and validate metrics based on two distinct approaches, one additive, which considers the arithmetic mean of the ...
Enio Júnior Seidel, Marcelo Silva de Oliveira   +1 more
doaj   +1 more source

GEOSTATISTICAL MODELING OF SOYBEAN YIELD AND SOIL CHEMICAL ATTRIBUTES USING SPATIAL BOOTSTRAP [PDF]

Engenharia Agrícola, 2019
The goal of this study was to use the spatial bootstrap method to model the spatial dependence structure of soybean yield and soil chemical attributes in an agricultural area.
Gustavo H. Dalposso, Miguel A. Uribe-Opazo, Jerry A. Johann, Fernanda De Bastiani, Manuel Galea   +4 more
doaj   +1 more source

A Novel Approach to Processing Very-High-Resolution Spaceborne SAR Data With Severe Spatial Dependence

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
An innovative approach, mainly featured by progressive iteration of partitioning and focusing, to processing very-high-resolution spaceborne synthetic aperture radar (SAR) data is presented in this article. Due to the long integration time endured during
Dadi Meng, Lijia Huang, Xiaolan Qiu, Guangzuo Li, Yuxin Hu, Bing Han, Donghui Hu   +6 more
doaj   +1 more source

Spatially constrained direction-dependent calibration [PDF]

Monthly Notices of the Royal Astronomical Society, 2021
ABSTRACT Direction-dependent calibration of widefield radio interferometers estimates the systematic errors, along with multiple directions in the sky. This is necessary because with most systematic errors, which are caused by effects such as the ionosphere or the receiver beam shape, there is a significant spatial variation. Fortunately,
openaire   +2 more sources

Sample arrangements and spatial variability characterization of dendometrics parameters of Eucalyptus camaldulensis and physical soil attributes

Revista Ceres, 2021
To evaluate the performance of different sampling arrangements, this work aimed to study, in a field of Eucalyptus camaldulensis, the variability and spatial dependence of some attributes of plant and soil (LATOSSOLO VERMELHO Distrófico [Typic hapludox]).
César Gustavo da Rocha Lima, Alan Rodrigo Panosso, Nídia Raquel Costa, Mariana Barbosa de Carvalho, Nelson Giovanini Júnior, Paulo Ricardo Teodoro da Silva   +5 more
doaj   +1 more source

Effects of Tillage on Along-Row Variability of Wheat and Maize Biomass

Plant Production Science, 2003
Spatial variability of wheat and maize biomass was studied under two tillage systems, minimum tillage (MT) and conventional moldboard plowing (CT). The above-ground biomass data were collected from 10 locations separated at 5 m intervals along the crop ...
Tomomi Nakamoto, Junko Yamagishi
doaj   +1 more source