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Considering frictional, inertial and machining forces, the authors have presented an enhanced analysis of a hexapod table as used in milling machines. The Newton-Euler analysis of hexapod’s components has been implemented by a simulation program developed by the authors in MATLAB environment and the results have been verified by those of others. The impact of various loads involved in machining operation carried out on a milling machine equipped with hexapod table has been presented in the paper. This provides a potential machine tool designer with guidelines on the importance of these loads and helps him give appropriate weights to them.

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- In this paper, an analytical formulation of FGM axisymmetric thick-walled cylinders, based on the plane elasticity theory is presented. The stress and displacements in thick cylindrical shell are calculated using the real, double and complex roots of characteristic equation. Solutions are obtained under generalized plane stress, plane strain and closed-ends cylinder assumptions. It is assumed that the material is isotropic and heterogeneous with constant Poissn's ratio and radially varying elastic modulu. The results have been compared with findings of the researcher (2001) [hoop stress is incorrect], and we have present corrected version as well as supplementary findings. Keywords: Thick-Walled Cylinder, FGM, Plane Elasticity

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Abstract- In this paper, an analytical formulation of FGM axisymmetric thick-walled cylinders, based on the first shear deformation theory (FSDT) is presented. The displacements and maximum stress in thick cylindrical shells are calculated. Solutions are obtained under generalized plane strain assumptions. It is assumed that the material is isotropic and heterogeneous with constant Poissn's ratio and radially varying elastic modulu. The results have been compared with findings of the plane elasticity theory (PET).

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In this research, the effect of whey protein concentrate (WPC) in the concentrations of 13, 16 and 19 percent with some of stabilizers including carboxymethyl cellulose (CMC), pectin and chitosan on the physicochemical properties such as acidity, pH, viscosity, overrun and melting resistance, as well as sensory properties such as taste, texture and overall acceptability in frozen yogurt were investigated. The results of statistical analysis showed that the effect of experimental treatments was significant (P<0.01) on all characteristics evaluated. By increasing the concentrations of WPC, increased the acidity and viscosity of the samples containing all three types of stabilizers, but decreased the pH, overrun and melting resistance percentage of frozen yogurt samples. The samples of frozen yogurt that enriched with carboxymethyl cellulose showed higher viscosity value than samples containing pectin and chitosan, but maximum percentage of overrun and melting resistance was observed in samples containing pectin. In evaluating the sensory characteristics, frozen yogurt containing 13% WPC and pectin had the highest score. According to the results of the physicochemical and sensory properties of frozen yogurt samples, the combination of whey protein concentrate with a concentration of 13% and pectin stabilizer was selected as the superior treatment.
 

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Nowadays, development is one of issues that have been important among geographers recently. Whereas public services stablish economic, social, cultural, physical and spatial form and nature of regions, thus inequity in their distribution and dispersion manner creates irreparable effect for regions structure and form, and appearance cause of types of development levels, and creates advantages for some regions. This reaearch aims analyzing development level of Alborz provinces counties. Thus, research method is comparative- analytical method, research type is practical, and data gathering is library way. Therefore Alborz counties have been categorized in having services aspect after nominating indicators (43 indicators) in 4 dimensions using TOPSIS, SAW, WASPAS, and Combinatorial (scores median) models, then plans priorities have been characterized according to public services dispersion for every county. Research findings show that Karaj, Sawojbolagh and Nazar Abad counties have the least development level, and Eshtehard and Taleghan have the highest development level (by scores 1 and 2) in  public services distribution aspect. Result of pearson correlation analysis shows that there is a logical relationship between population (as the most important factor in developing sercices) and sercices dispersion. Therefore, system of services distribution in Alborz province needs to create rational and harmonic relationship between population and services distribution.