Fractal antenna, as name concerns, uses fractal i.e. structure does not change and repeat it when large focus has created upon it. This repetition feature of this antenna provides a great flexibility that it can be designed and can used in different frequencies. Fractal geometry has shown its potential in many fields of engineering and technology. In antenna engineering fractal geometry is very...

Ferrous iron has been known to function as an electron source for iron-oxidizing microorganisms in both anoxic and oxic environments. A diversity of bacteria has been known to oxidize both soluble and solid-phase Fe(II) forms coupled to the reduction of nitrate. Here, we show for the first time Fe(II) oxidation by Sphaerotilus natans strain DSM 6575(T) under mixotrophic condition. Sphaerotilus ...

The magnetization and specific heat measurements have been performed on single-crystalline Gd_3_Ru_4_Al_12_ with a distorted Kagome lattice structure. This spin system is regarded as an antiferromagnetic triangular of XY like Heisenberg model at low temperatures. magnetic phase diagrams indicate the existence frustration Z_2_ degeneracy. imply successive transitions partial disorder T-shaped st...

The extensive research and development of micromechanical resonators is trying to allow the use of these devices for highly sensitive applications. Microcantilevers are some of the simplest MEMS structure and had been proved to be a good platform due to its excellent mechanical properties. A cantilever working in dynamic mode, adjust its resonance frequency depending on changes in both, the spr...

In a recent study of the fine structure of normal uninfected fibroblasts from regenerating tendon, periarticular granulation tissue (rabbit), and various other tissues (human, chicken, hamster), Movat and Fernando (1) have described a cell organelle not yet found elsewhere. This organelle is spindle-shaped and occurs irregularly within the cytoplasm, mainly in the Golgi region and in the periph...