Πλοήγηση ανά Θέμα "Greenhouses"
Αποτελέσματα 1-18 από 18
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Analysis of microclimate and cucumber fruit yield in a screenhouse and an evaporatively cooled greenhouse in a semi-arid location
(2018)The microclimate and cucumber crop response in a screenhouse and in an evaporatively cooled greenhouse were studied in Oman during winter/spring and spring/summer cultivation periods. Measurements were carried out in two ... -
Bayesian networks based policy making in the renewable energy sector
(2020)Extensive research on energy policy nowadays combines theory with advanced statistical tools such as Bayesian networks for analysis and prediction. The majority of these studies are related to observe energy scenarios in ... -
CFD simulation of heating greenhouse using a perforated polyethylene ducts
(2017)The location and the power of the heating devices determines in a large extend the flow and temperature patterns inside the greenhouse. The aim of this paper is to analyse the internal convective flows generated in a closed ... -
Crop reflectance monitoring as a tool for water stress detection in greenhouses: A review
(2016)Multisensory platforms for remote sensing measurements offer the possibility to monitor in real-time the crop health status without affecting the crop and environmental conditions. The concept of the speaking plant approach, ... -
Daily temperature optimisation in greenhouse by reinforcement learning
(2005)The goal of this study is to show the usefulness of reinforcement learning (RL) to solve a common greenhouse climate optimisation problem. The problem is to minimise the daily heating cost while achieving simultaneously ... -
Development of an advanced embedded system for description of electrophysiological phenomena in ornamental plants by biosignals processing
(2011)Extracellular electrical signals that are produced from plants have different patterns depending on factors that may cause stress such as water deficiency, nutrient shortages, high salinity level in the root environment ... -
Effect of irrigation frequency on rose flower production and quality
(2006)A better understanding of the effects of irrigation frequency on flower production and quality of rose plants can help to propose optimal irrigation scheduling. For this purpose, experiments were conducted on a soilless ... -
The effect of vent configuration and insect screens on greenhouse microclimate
(2005)The influence of insect screens and vent configurations on airflow and temperature patterns in an arched plastic covered greenhouse used for cultivating tomatoes was analysed using a commercial computational fluid dynamics ... -
Effects of pesticides on exposed populations from four European countries
(2008)The potential genetic hazard of pesticides to humans is of great concern, in particular in occupational and environmental settings because of their widespread use for domestic and industrial applications. In the present ... -
Greenhouse microclimate and dehumidification effectiveness under different ventilator configurations
(2007)In this paper, the efficiency of two different greenhouse ventilation opening configurations on greenhouse microclimate during dehumidification process with simultaneously heating and ventilation was analysed by means of ... -
Remediation of Polluted with Chromium Waters and Soils Cultivated with Wheat (Triticum durum) Using Zeolites Modified with Iron Oxide
(2016)The present study examines the efficiency of soil amendments regarding the retention of chromate ions, from water and cultivated soil with wheat (Triticum durum). The minerals and iron oxides that have been used were ... -
Remote sensing for crop water stress detection in greenhouses
(2015)Irrigation management is considered as one of the most important cultivation techniques which can lead to production of high quality products through efficient use of water and nutrients. The temperature of the crop has ... -
Scouting of Whiteflies in Tomato Greenhouse Environment Using Deep Learning
(2022)This study shows the possibilities of how to replace tedious human labor—scouting of yellow sticky traps (YST) for whiteflies—using artificial cognitive vision, specifically the deep convolutional network (CNN), as a part ... -
Silica coated insect proof screens for effective insect control in greenhouses
(2022)Insect proof screens were coated with silica (SiO2) nanoparticles using the plasma coating process. The work studied whether a screen coated by SiO2 nanoparticles could be more effective on insects' control than a non-coated ... -
Use of branch and bound algorithms for greenhouse climate control
(2015)Optimization of greenhouse climate management during winter period is an issue that intensely preoccupied researchers over the last two decades as it is directly linked to energy saving, products quality, and reduction of ... -
A web-based system for fungus disease risk assessment in greenhouses: System development
(2021)Nowadays, there is a great need and public concern for reduced use of hazardous pesticides in horticulture and implementation of alternative approaches for rational pests and diseases suppression. This goal is approached ... -
Wireless sensor networks for greenhouse climate and plant condition assessment
(2017)Spatially distributed environmental measurements at plant level can be used to create a precise and detailed representation of the climate at various regions inside a greenhouse. Climatic heterogeneity can cause significant ... -
Yearly numerical evaluation of greenhouse cover materials
(2018)The greenhouse internal microclimate, and consequently the plants growth, is formed from the combination of available solar radiation and ventilation. Transpiration and photosynthesis are affected by the PAR levels, as ...