نتایج جستجو برای: micro grids

تعداد نتایج: 135006  

Journal: :International Journal for Research in Applied Science and Engineering Technology 2019

One of the major challenges in standalone micro-grids (MG), is the frequency control. In this paper, a method for frequency control in a hybrid system based on wind turbine / photovoltaic / fuel cell and super capacitor is proposed. The proposed method is a combination of load frequency control and super capacitor voltage control. To determine the references power, PI controller and modified dr...

Journal: :Lab on a chip 2010
Scott A Zawko Christine E Schmidt

A living cell microarray consists of an orderly arrangement of cells attached to a solid support such as a glass microscope slide. The chief difficulty of obtaining such arrays is the fabrication of substrates patterned with micro-wells, adhesive spots, or other features to guide orderly cell attachment. Here we report a novel method using woven Nylon mesh to micropattern three-dimensional algi...

A Ehsani J Rezaeepazhand,

The present paper investigates the advantages of a new class of composite grid structures over conventional grids. Thus far, a known grid structure such as orthogrid or isogrid has been used as an orthotropic layer with at most in-plane anisotropy. The present laminated grid is composed of various numbers of thin composite grid layers. The stiffness of the structure can be adjusted by choosing ...

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