Results 21 to 30 of about 27,062 (211)

Evaluating the Effect of Cover Materials on Greenhouse Microclimates and Thermal Performance

open access: yesAgronomy, 2022
This study compared and analyzed changes in the microclimate and thermal environment inside single-span greenhouses covered with a single layer of plastic film, polycarbonate (PC), and glass.
Hyung-Kweon Kim   +3 more
doaj   +1 more source

Detection of Plastic Greenhouses Using High Resolution Rgb Remote Sensing Data and Convolutional Neural Network

open access: yesJournal of Environmental Geography, 2021
Agricultural production in greenhouses shows a rapid growth in many parts of the world. This form of intensive farming requires a large amount of water and fertilizers, and can have a severe impact on the environment.
Jakab Balázs   +2 more
doaj   +1 more source

Fans For Greenhouses

open access: yesEDIS, 2021
Fans are used in processing applications involved with drying, ventilating, heating, cooling, aspirating, elevating, and conveying. Processing and other agricultural activities requiring fans are greatly increasing.
Jonathan A. Watson   +5 more
doaj  

THC Yield and Greenhouse Cover Materials: Optimizing the Profit of Medical Cannabis

open access: yesBulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca: Horticulture, 2021
Even though Delta-9-tetrahydrocannabinol (THC) is a psychoactive substance, studies indicate that it has therapeutic properties. Moreover, the modification in Greece legislation regarding the legalization of cannabis has resulted in new business ...
Maria KOUSOYLA   +9 more
doaj   +1 more source

Comparison of Fossil Fuel and Geothermal Energy Sources Used for Greenhouse Heating

open access: yesTurkish Journal of Agriculture: Food Science and Technology, 2016
The most extensive and effective environmentally controlled production takes place in greenhouses. New innovations and developments for greenhouse production go hand in hand with efforts for sustainability.
Abdullah Nafi Baytorun   +2 more
doaj   +1 more source

Dynamic Response Analyses of Plastic Greenhouse Structure considering Fluctuating Wind Load

open access: yesAdvances in Civil Engineering, 2021
Wind load is one of the main factors of plastic greenhouse collapse. To solve the dynamic response problem of greenhouses under wind load and determine the dangerous section of a skeleton structure, the investigated lump method is presented for the ...
Yingchun Jiang   +4 more
doaj   +1 more source

Comparison of climate and production in closed, semi-closed and open greenhouses [PDF]

open access: yes, 2011
A (semi-)closed greenhouse is a novel greenhouse with an active cooling system and temporary heat storage in an aquifer. Air is cooled, heated and dehumidified by air treatment units. Climate in (semi-)closed greenhouses differs from that of conventional
Dieleman, J.A.   +5 more
core   +2 more sources

Analysis of Wind Pressure Coefficients for Single-Span Arched Plastic Greenhouses Located in a Valley Region Using CFD

open access: yesAgronomy, 2023
The wind pressure coefficient is essential for calculating the wind loads on greenhouses. The wind pressure on single-span arched greenhouses built in valleys differs from those in plain regions.
Zongmin Liang   +7 more
doaj   +1 more source

Cherry tomato yield in greenhouses with different plastic covers

open access: yesCiência Rural, 2017
: The objective of the present study was to evaluate the influence of different plastic covers on microclimate and cherry tomato yield in greenhouses.
Ester Holcman   +2 more
doaj   +1 more source

Integration of Active Solar Thermal Technologies in Greenhouses: A Mini Review

open access: yesFrontiers in Energy Research, 2021
Traditional agricultural greenhouses have been used to grow vegetables in the winter without any auxiliary heating. However, crop production is highly influenced by soil and air temperatures, humidity, and solar radiation.
Ding Ding
doaj   +1 more source

Home - About - Disclaimer - Privacy