نتایج جستجو برای: vertical farms

تعداد نتایج: 116813  

Journal: :Sustainability 2022

Vertical farming (VF) is a method of indoor agricultural production, involving stacked layers crops, utilising technologies to increase yields per unit area. However, this emerging sector has struggled with profitability and high failure rate. Practitioners academics call for comprehensive economic analysis vertical farming, but efforts have been stifled by lack valid available data as existing...

Journal: :E3S web of conferences 2021

The issue of raising the level safety people, lands and property from potential threats in emergency situations oil gas storage processing sites is particular concern to all levels authority countries, whether they are legal or executive authority. Study statistical data incidents fires at these equipment showed that most negative effects for damage company’s personnel, population environment o...

Journal: :Voprosy rybolovstva 2023

The article outlines the issues of introducing a factory method growing fish planting material in individual farms Central Federal District on basis creating network specialized (reproducers), which will solve problem rapid introduction existing and newly created species into production. At same time, it is proposed to integrate production cooperation specialization, including vertical links va...

Journal: :Journal of Renewable and Sustainable Energy 2021

Low-level jets (LLJs) are the wind maxima in lowest 50 to 1000 m of atmospheric boundary layers. Due their significant influence on power production farms, it is crucial understand interaction between LLJs and farms. In presence a LLJ, there positive negative shear regions velocity profile. The continuously turbulent, while have limited turbulence. We present large eddy simulations farms which ...

Journal: :Energies 2021

Different strategies are reported in the literature for energy saving Closed Plant Production Systems (CPPS). However, not reliable evidences about consumption with use of pulsed LED light technique lighting system available Factory and Vertical Farm. In this work, three key points to determine effects versus continuous presented: (1) A mathematical model its practical application stabilizing e...

Journal: :Sustainability 2023

This study evaluated several decision-support tools that can be used to create a control system capable of taking advantage fluctuations in the price resources and improving energy use efficiency growing crops vertical farms. A mechanistic model was updated calibrated for farm environments. also validated under changing environmental conditions with acceptable agreement empirical observations s...

Journal: :Canadian Journal of Animal Science 2022

Broiler breeder farms could be a reservoir of Escherichia coli, disseminating antimicrobial resistance and virulence factors. We investigated the E. coli from nine broiler characterised their genes. A total 256 showed high level to tetracycline, nalidixic acid, ampicillin, cephalothin, followed by trimethoprim–sulfamethoxazole chloramphenicol. The trimethoprim–sulfamethoxazole, chloramphenicol ...

2016
Xianqing Ji Scott Rozelle Jikun Huang Linxiu Zhang Tonglong Zhang

China’s agricultural sector faces challenges because most farms are still small scale. China’s policy is to encourage the consolidation of farms and promote farms that are larger in scale. A question that arises is: Are China ’s farms growing? The goal of the present paper is to determine whether large farms in China have emerged or if farms remain small. To meet this goal, we systematically do...

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