نتایج جستجو برای: farm structure

تعداد نتایج: 1603283  

Journal: :Northeastern Journal of Agricultural and Resource Economics 1986

2008
Priyabrata Santra U. K. Chopra Debashis Chakraborty

Knowledge of spatial variation of soil properties is important in precision farming and environmental modelling. Spatial distribution of water content at field capacity (FC) and permanent wilting point (PWP) at different zones of a farm governs the available water for plant growth. These two soil hydraulic parameters play key roles in crop selection for different blocks of a farm, and in schedu...

Journal: :Manufacturing & Service Operations Management 2011
Burak Kazaz Scott Webster

T paper studies the role of the yield-dependent trading cost structure influencing the optimal choice of the selling price and production quantity for a firm that operates under supply uncertainty in the agricultural industry. The firm initially leases farm space, but its realized amount of fruit supply fluctuates because of weather conditions, diseases, etc. At the end of the growing season, t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - پژوهشکده فنی و مهندسی 1388

asymmetric polyethersulfone (pes) microfiltration flat sheet membranes were composed by the phase inversion method (pim) and were used as supports. composite membranes were fabricated by coating silicone rubber as selective layer. effect of different concentrations of pes and pdms and different solvent such as nmp, dmf and dms effects as pes solvents and support thickness and different coagulat...

2015
Meng Xiong Feng Gao Kun Liu Siyun Chen Jiaojiao Dong Frede Blaabjerg

Energy storage devices are expected to be more frequently implemented in wind farms in near future. In this paper, both pumped hydro and fly wheel storage systems are used to assist a wind farm to smooth the power fluctuations. Due to the significant difference in the response speeds of the two storages types, the wind farm coordination with two types of energy storage is a problem. This paper ...

Journal: :The Journal of rural health : official journal of the American Rural Health Association and the National Rural Health Care Association 2007
Corinne Peek-Asa Nancy L Sprince Paul S Whitten Scott R Falb Murray D Madsen Craig Zwerling

CONTEXT Crash fatality and injury rates are higher on rural roadways than other roadway types. Although slow-moving farm vehicles and equipment are risk factors on rural roads, little is known about the characteristics of crashes with farm vehicles/equipment. PURPOSE To describe crashes and injuries for the drivers of farm vehicles/equipment and non-farm vehicles involved in an injury crash. ...

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