The relationship between surface transfer impedance and stirred mode chamber shielding effectiveness proposed by Eicher and Boillot has been simplified. This simplified relationship was used to compare the measured stirred mode chamber shielding effectiveness of nine shielding artifacts with the shielding effectiveness of the same samples calculated from transfer impedance measurements made at ...

normal 0 false false false en-us x-none fa introduction: in radiation therapy centers across iran, protection of normal tissues is usually accomplished by either cerrobend or lead block shielding. in this study, the influence of these two shielding methods on central axis dose distribution of photon beam a cobalt unit was investigated in clinical conditions. materials and methods: all measureme...

............................................................................................................. 8 I. Theoretical Background .................................................................... 9 Cognitive Control ............................................................................................................ 10 An Introduction to Cognitive Control.........................

The complete 3D nonlinear dynamic problem of extensible, flexible risers conveying fluid is considered. For describing the dynamics of the system, the Newtonian derivation procedure is followed. The velocity field inside the pipe formulated using hydrostatic and Bernoulli equations. The hydrodynamic effects of external fluids are taken into consideration through the nonlinear drag forces in var...

Internal communication within a company is an important part to achieve the company's goals, one of which successful implementation Flexible Working Arrangement at PT Telkom Indonesia Tbk where technology plays role in it. The purpose this study determine internal process that occurs carrying out Arrangements Tbk. This uses qualitative approach with single case method focus on analyzing actual ...