نتایج جستجو برای: density measurement

تعداد نتایج: 830874  

A. Karimi Taheri, A. Kiet Tieu, Kazeminezhad,

Abstract: The theoretical calculation of dislocation density in different regions of a deformed workpiece of 99.99% pure copper has been carried out using different procedures consisting of Finite Element Method (FEM) and hardness measurement. To assess the validity of the results pertaining to these procedures, the dislocation density is experimentally measured utilizing the Differential...

Journal: :روش های عددی در مهندسی (استقلال) 0
سید عبدالکریم حسینی s. a. hoseini

warp and weft spacing and its coefficient of variation affect the physical properties of fabrics such as fabric hand, frictional and mechanical properties. in this paper the weft and warp spacing and its coefficient of variation for plain weave is calculated using fourier transforms. different methods have been used in this work including autocorrelation function. first, two dimensional power s...

Journal: :The Journal of Chemical Physics 1969

Journal: :Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry 1964

2005
Danny Fox Martin Hackl Irene Heim Jon Gajewski Elena Guerzoni Sabine Iatridou Polly Jacobson Ezra Keshet Jeff King Nathan Klinedinst Giorgio Magri Barry Schein Philippe Schlenker Roger Schwarzschild Jesse Snedeker Benjamin Spector Roger Vergnaud Steve Yablo Maria Luisa Zubizarreta

The notion of measurement plays a central role in human cognition. We measure people’s height, the weight of physical objects, the length of stretches of time, or the size of various collections of individuals. Measurements of height, weight, and the like are commonly thought of as mappings between objects and dense scales, while measurements of collections of individuals, as implemented for in...

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