نتایج جستجو برای: geometrical
تعداد نتایج: 28825 فیلتر نتایج به سال:
Brace and chord members of a tubular joint always have a degree of geometrical imperfection due to the manufacturing, transportation and installation processes and also the action of various loads during the lifetime of the structure. However, during the analysis and design of tubular joints, geometrical imperfection is not usually taken into account. Considering the geometrical imperfection in...
a brass vortex tube (vt) with interchangeable parts is used to determine the optimum cold end orifice diameter, main tube length and diameter. experiments were carried out to study the effects of operating pressure as well. it is shown that there is an optimum value for cold end orifice diameter, which is equal to 4mm and there is an optimum value for cold and hot exit temperature difference at...
Abstract geometrical computation 7: geometrical accumulations and computably enumerable real numbers
The process of developing architectural forms has greatly been changed by advances in digital technology, especially in design tools and applications. In recent years, the advent of graphical scripting languages in the design process has profoundly affected 3D modeling. Scripting languages help develop algorithms and geometrical grammar of shapes based on their constituent parameters. This stud...
Abstract In this paper, general grains of solid propulsion systems such as cylindrical grains, multilateral grains and star grains are designed by new method. This method is more rapid in comparison with the others that act base on geometrical breakdown and boundary condition definition. In this method, geometrical definition point and grain production are defined and then the burning surfa...
A large number of civil registries are available as analog maps that require georeferencing. Besides the quality of the analog maps and control points, the algorithm used for georeferencing also affects the accuracy of the map and the carried out geometrical calculations which indicates the need to study modern Georeferencing Methods. This requires the adoption of georeferencing optimization mo...
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