Results 21 to 30 of about 1,094,343 (346)
EDIS, 2018 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.
D. E. Buffington +3 more
doaj +3 more sources
Wind Loads on Single-span Plastic Greenhouses and Solar Greenhouses [PDF]
HortTechnology, 2013 Wind tunnel tests were conducted in an NH-2-type wind tunnel to investigate the wind pressure coefficients and their distribution on the surfaces of a single-span plastic greenhouse and a solar greenhouse. Wind pressures at numerous points on the surfaces of the greenhouse models were simultaneously measured for various wind ...
Zai Q. Yang +4 more
openaire +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 Plastic-covered greenhouses (PCG) have been extensively used in agricultural practices around the world. Remote sensing based on spectral indices is a key asset to monitor the spatial distribution of these structures on a large scale.
G. Senel +4 more
semanticscholar +1 more source
History of Controlled Environment Horticulture: Greenhouses
HortScience, 2022 Modern greenhouses are intensive farming systems designed to achieve high efficiency and productivity. Plants are produced year-round in greenhouses by maintaining the environment at or near optimum levels regardless of extreme weather conditions.
Krishna Nemali
doaj +1 more source
Agriculture, 2022 The single-span plastic greenhouses are affected by strong winds which generate uplift resistance causing the bending of members, damage to protective films, and damage to crops.
Myeonghwan Kim
doaj +1 more source
Study on the Cooling Effect of Double-Layer Spray Greenhouse
Agriculture, 2023 Greenhouses provide suitable environmental conditions for plant growth. Double-layer plastic greenhouses are often used in many regions to ensure normal crop growth during winter since single-layer plastic greenhouses have poor insulation.
Jihang Xu +10 more
doaj +1 more source
Frontiers in Earth Science, 2022 Because of their relatively simple structures, plastic greenhouses in southern China have poor resistance to adverse external weather conditions. Adverse meteorological condition inside the greenhouse is one of the main limiting factors for facility crop
Qi Zhang +4 more
doaj +1 more source
Plastics value chain - Abatement of greenhouse gas emissions
AIMS Environmental Science, 2021 <abstract> <p>This study focuses on the possibilities to abate greenhouse gas emissions in the value chain of plastics with special emphasis on efficiency improvements in the virgin plastics production and to recycle or reuse/regenerate plastics from waste streams.
Kajaste, R., Oinas, P.
openaire +3 more sources
Object-Based Greenhouse Classification from GeoEye-1 and WorldView-2 Stereo Imagery [PDF]
, 2014 Remote sensing technologies have been commonly used to perform greenhouse detection and mapping. In this research, stereo pairs acquired by very high-resolution optical satellites GeoEye-1 (GE1) and WorldView-2 (WV2) have been utilized to carry out the ...
Aguilar Torres, Fernando José +3 more
core +3 more sources
Evaluating the Effect of Cover Materials on Greenhouse Microclimates and Thermal Performance
Agronomy, 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