Πλοήγηση ανά Θέμα "Spatial variability"
Αποτελέσματα 1-16 από 16
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Application of variable rate fertilizer in a commercial apple orchard
(2013)The spatial variability of yield in an apple orchard is high due to the inherent soil variability and the impact of the environment on the trees. One practice of precision agriculture is the variable rate application (VRA) ... -
Assessment of SSI interaction effects for deep diaphragm walls and adjacent buildings considering spatial variability of parameters, post-peak behavior and concrete cracking
(2021)Recent research works into the design and response evaluation of deep diaphragm walls and induced settlements to adjacent buildings demonstrated that the nonlinear behavior of surrounding soil, cracking effects affecting ... -
Behavior of a seismically isolated bridge crossing a fault rupture zone
(2014)The effect of the fault rupture zone traversing a seismically isolated bridge is investigated utilizing a finite element model of a section of the Bolu Viaduct and a set of synthetic broadband strong ground motions simulated ... -
Delineation of management zones in an apple orchard: Correlations between yield and soil properties
(2011)In the present paper the yield and soil spatial variability in an apple orchard was studied. Apples were collected manually and placed in plastic bins along the tree rows. Yield per ten trees was weighted and the geographical ... -
Design procedure for the modelling of jet-grout column slabs supporting deep excavations
(2018)Overlapping jet-grout columns are often used to form a grout slab at the bottom of deep excavations to support the retaining structures. Columnar geometrical imperfections, spatially varying strength and stiffness and the ... -
Effective-stress seismic analysis of a gravity multi-block quay wall
(2018)The seismic performance of an existing gravity quay wall consisting of concrete blocks is investigated using effective stress analysis. The study focuses on the effect of the uncertainty associated with the spatial variability ... -
Effects of spatial variability of soil properties and ground motion characteristics on permanent displacements of slopes
(2022)The seismic performance of earth slopes is a problem of great importance in geotechnical earthquake engineering associated with various sources of uncertainty. This research investigates the effects of two important causes ... -
Flower spatial variability in an apple orchard
(2009)Precision pomology is the application of site-specific management into orchards. Orchards produce high value crops and the application of site-specific management has high potential. Finding plant or soil characteristics ... -
Gps and GIS based N-mapping of agricultural fields' spatial variability as a tool for non-polluting fertilization by drip irrigation
(2009)A study on nitrates' spatial variability using GPS and GIS processing and mapping, and the effects of drip irrigation interval and applied nitrogen fertilizer, in the movement, concentration and depletion of total N, NO ... -
Management zones delineation using fuzzy clustering techniques in vines
(2011)This paper presents the results of applying precision agriculture in a 1 ha commercial vineyard in Greece in 2009 and 2010. A field elevation map was produced using RTK-GPS. Soil electrical conductivity was measured using ... -
Simulation of a water distribution network with key performance indicators for spatio-temporal analysis and operation of highly stressedwater infrastructure
(2020)An annual and lumped water balance assessment of a water distribution network is recommended by the InternationalWater Association as a first step and prerequisite for improving the performance of the network by minimizing ... -
Simulation of random fields of soil properties by the local average subdivision method and engineering applications
(2021)The seismic performance of oil and natural gas pipelines founded or embedded in earth slopes encompasses great uncertainty related both to the earthquake shaking characteristics and to the natural heterogeneity of geomaterials. ... -
Soil spatial variability in small Greek apple orchards
(2007)In the present study, the spatial variability of some soil physical and chemical properties in a 0.8 ha apple orchard were studied. Sixty soil samples were taken to a depth of 30 cm and analyzed for the following soil ... -
Using laser scanner to map pruning wood in vineyards
(2013)Management zones in vineyards may be delineated by examining the spatial variability of various biophysical factors related to grapevine performance, such as vegetation indices. Among measurements of vine vigour, the ... -
Yyield prediction in a commercial apple orchard by analyzing RGB and multi-spectral images of trees during flowering period
(2011)The objective of the research was to study the spatial variability in an apple orchard and to develop methods for predicting the variation of the final yield. RGB and multi-spectral images of part of the trees were taken ... -
Βehavior of underground energy pipelines under permanent ground displacements
(2021)The seismic performance of oil and natural gas steel pipelines embedded in earth slopes presents great uncertainty related both to the earthquake shaking characteristics and to the natural heterogeneity of geomaterials. ...