Effort-independent region

As mentioned earlier, there are two major causes of uncoordinated relief effort independent decisions by organizations with different capabilities, and the sketchiness of information used for assessing relief-needs of regions. Organizations make... 

Peterson, Sarah. People and Ecosystems in Colombia Casualties of the Drug War. Independent Review, vol. 6, Winter 2002, pp. 427ff. A little-known source of opposition to the war on drugs is environmentalists, who point out the devastation to people and ecosystems being caused by drug crop eradication efforts in the Andean and Amazonian regions of South... 

The ICRP 66 model employs 10 input parameters for the determination of regional deposition fraction. These input parameters were varied according to their characteristic distributions, in an effort to perform uncertainty analysis of regional deposition fraction. The parameter particle aerodynamic diameter d (Table 27.1), is dependent on the AMAD distribution of the aerosol, and cannot be varied with respect to the uncertainty analysis. The remaining nine parameters (Table 27.1) are independent and are varied to determine the uncertainty in regional deposition fraction estimates. The resulting estimates are fitted to known distributions and described by their characteristic parameters. Statistical analyses were performed on input... 

The reason is that when the structures are modeled independently considering free boundaries, the flexibility of the areas close to the boundaries do not appear up to very high frequency modes, as they do not suffer from the inertia efforts because they do not have mass around. Opposite to that, when fixed boundaries are used, the flexibility of the regions close to the boundaries appears already since the very first modes, those with lowest natural frequency. 

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