Greenhouses are widely used in agricultural and horticultural production. With the characteristics of lightweight, small stiffness high flexibility, greenhouses sensitive to wind loads. In calculation loads, pressure coefficient (Cp) is essential. The rationality value directly affects safety economy greenhouses. Therefore, Cp values estimation one most important issues design order make full u...

this paper applied a non-parametric (data envelopment analysis) method to analyze the efficiency of farmers, discriminate efficient farmers from inefficient ones and to identify wasteful uses of energy in order to optimize the energy inputs for greenhouse cucumber production in lorestan province of iran. data were collected from 27 cucumber producers by using a face-to-face questionnaire.dea cr...

savojbolagh is the main region of hydroponic greenhouse agriculture in iran and is of the capacity to produce the highest in greenhouse production strawberry. the aims followed in this study were to calculate the energy use pattern and determine the relationship between energy input in greenhouse strawberry production and its yield through a linear programming model as based on data envelopment...

Lunar Habitation 1 (LH-1) is a proposed permanent lunar base designed to facilitate astronomical research as well as study the feasibility of human colonization of the Moon. Specific emphasis is placed on the effectiveness of inflatable structures as permanent bases and the practicality of incorporating greenhouses in the base. A location on Malapert Mountain on the lunar south pole is selected...

This paper applied a non-parametric (Data Envelopment Analysis) method to analyze the efficiency of farmers, discriminate efficient farmers from inefficient ones and to identify wasteful uses of energy in order to optimize the energy inputs for greenhouse cucumber production in Lorestan province of Iran. Data were collected from 27 cucumber producers by using a face-to-face questionnaire.DEA cr...