the importance of iranian ancient as architectural heritage have to competent international prestige a nd respect due this is important with regard to proper conservation met hods based on non-destructive evaluation methods and non-contact testing providing enough accuracy and speed to bri ng performance to stabilize while correct location and age value of valuable architectural aspect of quant...

one of the challenges in non-destructive testing schemes using the ultrasound pulse-echo technique is to identify those defects whose sizes are less than or equal to the detection resolution that is dependent on the width of the ultrasound pulse. existing methods also require a reference specimen of the same defective material, which may not be available in some cases. we present a new method f...

Concrete is a material whose properties depend on its initial formulation, conditions of use, and change over time depending environment the different types degradation that it likely to undergo. Knowledge monitoring various mechanical are therefore essential for maintenance civil engineering works. All concrete assessment methods, whether destructive or non-destructive, can then provide valuab...