Results 281 to 290 of about 1,094,343 (346)

A water-curtain heating system for plastic greenhouses

Journal of Agricultural Engineering Research, 1992
A possible alternative method of using power station waste heat has been investigated using a small-scale physical model and its performance compared with that predicted from thermodynamic principles. It employs a variation of the water-curtain surface-heating method first investigated experimentally by Canham in 1957.
J.F. Meneses, A.E. Canham
openaire   +1 more source

Thermal environment evaluation of plastic greenhouses in southern China and optimization by phase change materials

Journal of Building Engineering, 2022
Yanru Li, Xin Liu, Wanliang Li, Yubin Jian, M. Arıcı, Yu Chen, Qiong Shen   +6 more
semanticscholar   +1 more source

Plastic products trim emissions of greenhouse gases

Chemical & Engineering News Archive, 2000
The Chemical Manufacturers Association (CMA) has released a pair of studies that it says shows the products of chemical companies are already helping to reduce greenhouse gas emissions.
openaire   +1 more source

Abundant bacteria and fungi attached to airborne particulates in vegetable plastic greenhouses.

Science of the Total Environment, 2022
Changliang Nie, Xueyun Geng, Huiling Ouyang, Lina Wang, Zongzhen Li, Mingyu Wang, Xiaomin Sun, Yan Wu, Yunhan Qin, Youxin Xu, Xu Tang, Jianmin Chen   +11 more
semanticscholar   +1 more source

Mapping agricultural plastic greenhouses using Google Earth images and deep learning

Computers and Electronics in Agriculture, 2021
Wei Chen, Yameng Xu, Zhe Zhang, Lan Yang, Xubin Pan, Zhenfang Jia   +5 more
semanticscholar   +1 more source

Channelled plastic for greenhouse and skylight use

Solar Energy, 1981
Abstract Transparent, channelled, plastic sheets lend themselves to solar energy applications in which an interior space needs light but limited amounts of heat. We discuss the transmission of solar energy through such sheets with and without circulating water or water with dissolved ions.
openaire   +1 more source

The plastic greenhouse industry of Spain

El artículo analiza la industria de invernaderos de plástico en España, destacando su expansión en las últimas décadas gracias a factores como la crisis energética de los 70 y el bajo coste de los materiales. Se describe la predominancia de invernaderos de tipo "parral" en el sureste español, las prácticas agrícolas empleadas (riego, cultivos sin suelo,
Castilla Prados, Nicolás, Hernández Rodríguez, Joaquín   +1 more
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NEW DEVELOPEMENTS IN SHADING PLASTIC GREENHOUSES

Acta Horticulturae, 1978
M. Grafiadellis, S. Kyritsis
openaire   +1 more source

Phthalate pollution and migration in soil-air-vegetable systems in typical plastic agricultural greenhouses in northwestern China.

Science of the Total Environment, 2021
Xinkai Wang, Yanxia Zhang, Biao Huang, Zhikun Chen, M. Zhong, Qiangqiang Lu, Ya''nan Fan, Xiaofei Liu, Qingsong Ji   +8 more
semanticscholar   +1 more source

Reducing environmental plastic pollution by designing polymer materials for managed end-of-life

Nature Reviews Materials, 2021
Kara Lavender, Ramani Narayan
exaly