Results 21 to 30 of about 27,429 (307)

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

Object-Based Greenhouse Mapping Using Very High Resolution Satellite Data and Landsat 8 Time Series [PDF]

open access: yes, 2016
Greenhouse mapping through remote sensing has received extensive attention over the last decades. In this article, the innovative goal relies on mapping greenhouses through the combined use of very high resolution satellite data (WorldView-2) and Landsat
Aguilar Torres, Fernando José   +4 more
core   +5 more sources

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  

Environmental control of greenhouse and plastic cover. II

open access: yesEngei Gakkai zasshi, 1967
1. Climatic factors were measured in large gutter-connected greenhouses which are equipped with the cooling system as pad-and fan in Kusatsu City of Shiga Prefecture.2. The greenhouses measured were so different from one another in their structures, aeration systems and crops, that the temperature and wind velocity were studied for three to four ...
Y. KAWAKATSU, T. NAKAO
openaire   +3 more sources

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

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

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

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

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

Propagation Characteristics of Radio Wave in Plastic Greenhouse

open access: yes, 2016
In order to realize the deployment of wireless sensor network in large areas of plastic greenhouses. The propagation characteristics of radio wave in plastic greenhouse were studied. The Received Signal Strength Index (RSSI) in greenhouse and between greenhouses were studied, and the logarithmic path loss model for RSSI was established.
Jizhang Wang, Yuli Peng, Pingping Li
openaire   +2 more sources

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