Abstract: Disturbances caused by impulsive mechanical source in a homogeneous, isotropic half-space are studied within the context of generalized thermoelastic diffusion with one relaxation time. A two dimensional half space with a permeating substance in contact with the bounding plane is considered in axisymmetric distribution. The chemical potential is assumed to be a known function of time. Integral transform technique is used to find the analytic solution in the transform domain by using direct approach. Inversion of transforms is done employing a numerical scheme. Mathematical model is prepared for Copper material and numerical results for temperature, stress, displacement, chemical potential and concentration are obtained and illustrated graphically

• Publication Date: 12-Apr-2015
• DOI: 10.15224/978-1-63248-055-2-12
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Abstract: Vegetation cover and management factor (C) of the Universal Soil Loss Equation (USLE) is usually can be found from guideline. However, the value would actually bias for small scale area. This study was therefore aimed to use digital photograph to obtain the vegetation cover and management factor (C) at small scale. A total of 8 photographs were taken at the centre of the 8 experimental plots location. These photographs were processed using ArcGIS 10.1 whereby the vegetation cover and bared soil were identified using the maximum likelihood algorithm method. For validation purposes, the results obtained were compared with that of the previous studies. We found that the newly derived value of C is of comparable with that of the previous studies. This indicates the simple technique is beneficial for quantification of the vegetation ground cover for small scale and sloping topography as we applied to hilly area beside highway. The proposed technique is also applicable for large area but it

• Publication Date: 12-Apr-2015
• DOI: 10.15224/978-1-63248-055-2-13
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