Πλοήγηση ανά Θέμα "Forestry"
Αποτελέσματα 41-60 από 64
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Leaf boundary layer conductance in ventilated greenhouses: An experimental approach
(2007)Improving the design, control and management of greenhouse ventilation systems requires a better insight into the coupling and feedback mechanisms between the crop, the internal atmosphere and the outside atmosphere. The ... -
Learning assets innovation - Serving the inclusion needs of the socially, intellectually, and physically disadvantaged
(2014)We aim to deploy and validate a novel approach for mainstreaming inclusiveness and accessibility related solutions which can be programmed, distributed and executed in the form of Applications, thus capitalizing on the ... -
Mapping the optimal forest road network based on the multicriteria evaluation technique: the case study of Mediterranean Island of Thassos in Greece
(2015)The sustainable management of forest resources can only be achieved through a well-organized road network designed with the optimal spatial planning and the minimum environmental impacts. This paper describes the spatial ... -
A Multirate Fully Parallel LDPC Encoder for the IEEE 802.11n/ac/ax QC-LDPC Codes Based on Reduced Complexity XOR Trees
(2021)This article proposes an encoding method based on a two-step encoding algorithm for the 12 quasi-cyclic (QC)-low-density parity-check (LDPC) (QC-LDPC) codes specified in the IEEE 802.11n/ac/ax standards. The proposed ... -
Nearest Neighbor Algorithms using xBR-Trees
(2011)One of the common queries in spatial databases is the (K) Nearest Neighbor Query that discovers the (K) closest objects to a query object. Processing of spatial queries, in most cases, is accomplished by indexing spatial ... -
On Improving Constrained Single and Group Operator Placement Using Evictions in Big Data Environments
(2016)With an ever increasing amount of data generated by scientific experiments, social networks and mobile as well as wireless sensor networks, reducing resource consumption by big data applications becomes of paramount ... -
Optimal number and location of watchtowers for immediate detection of forest fires in a small island
(2017)A crucial factor for prevention and immediate confrontation of destructive fires and their socioeconomic and environmental consequences constitutes the early detection and spatial localization of fire ignitions, so that ... -
Orchard mapping with deep learning semantic segmentation
(2021)This study aimed to propose an approach for orchard trees segmentation using aerial images based on a deep learning convolutional neural network variant, namely the U-net network. The purpose was the automated detection ... -
OVERALL HEAT-TRANSFER COEFFICIENT OF A GREENHOUSE COVER
(1994)Theoretical considerations concerning the greenhouse energy behaviour during the night, allow us to propose an evaluation method of the overall heat transfer coefficient through the greenhouse cover material as a function ... -
Parallel processing of spatial batch-queries using xBR + -trees in solid-state drives
(2020)Efficient query processing in spatial databases is of vital importance for numerous modern applications. In most cases, such processing is accomplished by taking advantage of spatial indexes. The xBR +-tree is an index for ... -
Porting disk-based spatial index structures to flash-based solid state drives
(2022)Indexing data on flash-based Solid State Drives (SSDs) is an important paradigm recently applied in spatial data management. During last years, the design of new spatial access methods for SSDs, named flash-aware spatial ... -
Potential of using satellite based vegetation indices and biophysical variables for the assessment of the water footprint of crops
(2014)Satellite remote sensing techniques play an important role in crop identification, acreage and production estimation, disease and stress detection, and soil and water resources characterization because they provide spatially ... -
Predicting the impact of text-reading using decision trees
(2019)Various road safety analyses prove that cell phone usage cause driver distraction which, in turn, has become a leading cause for crashes. Various studies have focused on different cell phone operations such as hand-held ... -
Prokaryotic diversity in biodeteriorated wood coming from the Bükkábrány fossil forest
(2016)The oldest standing paleo-forest in the world is located at Bükkábrány in Hungary. Some 7 million years ago a sudden and rapid deposition of sands from a prograding delta resulted in rise of the level of Lake Pannon that ... -
QUANTIFICATION OF THE VENTILATION OF A GREENHOUSE WITH A ROOF OPENING
(1995)Measurements of air exchange rates were performed in situ in a glasshouse equipped with a continuous roof opening. These measurements were carried out using the decay rate method with N2O as tracer gas. Simultaneously, ... -
Random forest, M5P and regression analysis to estimate the field unsaturated hydraulic conductivity
(2019)Hydraulic conductivity of soil reveals its influencing role in the studies related to management of surface and subsurface flow, e.g. irrigation and drainage projects, and solute mass transport models. Direct measurements ... -
Revisiting the dynamics of forest area change: A panel data assessment
(2020)This study employs a panel dataset on forest area of 22 countries and for the time period 1995-2016 in order to provide an up-todate assessment on determinants of forest area change. Our set of explanatory variables is ... -
Soil structure of a clay loam as affected by long-term tillage and residue management
(2020)Soil structure is of great importance for a number of other related properties and agricultural management affects it. Under semiarid climatic conditions, soil water for crop growth is particularly important and water ... -
Spatial batch-queries processing using xBR+-trees in Solid-State Drives
(2018)Efficient query processing in spatial databases is of vital importance for numerous modern applications. In most cases, such processing is accomplished by taking advantage of spatial indexes. The xBR+ -tree is an index for ... -
A Study of R-tree Performance in Hybrid Flash/3DXPoint Storage
(2019)The flash based solid state drives have become the storage medium of choice for many applications, replacing traditional HDDs in almost any data center. Their advent has motivated many research efforts in data management. ...