The mechanical properties of nanostructures are a researcher’s favorite topics. In the meantime, and physical two dimensional structures nanotubes have attracted greater attention due to their wide application. Si (Si) consisting atoms that arranged as honeycombs. This structure has created some special in nanotubes. this paper, Young’s modulus values stress strain diagrams investigated using m...

physical properties of four common iranian varieties of canola seeds (hyola, okapi, orient and slm) were evaluated as a function of their moisture contents. the average seed length and thousand seed mass varied linearly from 1.925 to 2.262 mm and from 3.06 to 4.84 g, respectively. the average diameter, geometric mean diameter, and sphericity varied non-linearly from 1.475 to 1.911 mm, 1.625 to ...

UNLABELLED PREMISE OF STUDY Herbaceous perennials are important long-lived plants in North American forests. Trillium has been used as a model organism to examine the effects of ecological processes on age structure in herbaceous forest perennials. Here, the methods of aging Trillium rhizomes are critically examined. • METHODS Rhizomes of seedlings, single-bract plants, three-bract nonflow...

rectangular waveguide (wr) is one of the earliest types of transmission lines. rectangular waveguide can be produced by hot extrusion process. in this paper, the hot extrusion process of cuzn5 rectangular waveguide was investigated by finite element method (fem). in addition, genetic algorithm method (ga) was used to optimize the die geometry and process conditions to achieve the lowest magnitu...