Abstract—Non contact evaluation of the thickness of paint coatings can be attempted by different destructive and nondestructive methods such as cross-section microscopy, gravimetric mass measurement, magnetic gauges, Eddy current, ultrasound or terahertz. Infrared thermography is a nondestructive and non-invasive method that can be envisaged as a useful tool to measure the surface thickness var...

Hydrogels are extensively used for tissue engineering, cell therapy or controlled release of bioactive factors. Nondestructive techniques that can follow their viscoelastic properties during polymerization, remodeling, and degradation are needed, since these properties are determinant for their in vivo efficiency. In this work, we proposed the viscoelastic testing of bilayered materials (VeTBiM...

Drilling boreholes is common practice in geotechnical and geoenvironmental investigations and in various other ex­ ploration, testing, and monitoring appli­ cations. When a casing is placed in a borehole an annular space is created be­ tween the casing and the surrounding soil. If not properly sealed, this annular space can be a potential path for trans­ port of contaminants in the subsurface e...

The aim of this article is to attempt a concise review of the state of the art of the nondestructive biomarkers approach in vertebrates, establishing a consensus on the most useful and sensitive nondestructive biomarker techniques, and proposing research priorities for the development and validation of this promising methodology. The following topics are discussed: the advantages of the use of ...

http://ammtiac.alionscience.com The AMMTIAC Quarterly, Volume 1, Number 3 INTRODUCTION Visual inspection is by far the most common nondestructive testing (NDT) technique [1]. When attempting to determine the soundness of any part or specimen for its intended application, visual inspection is normally the first step in the examination process. Generally, almost any specimen can be visually exami...

After visual and optical testing (VT), the next method of nondestructive testing (NDT) most commonly employed in industry is radiographic testing. Also simply referred to as radiography, it is perhaps the most versatile of the nondestructive testing methods.[1] The basic radiographic process in use today is in large part still the same as it was when it was introduced in the late 1800s. Radiogr...

When a wave impinges upon an irregularity in an otherwise homogeneous medium, the wave is deformed in a manner which 1s characteristic of the irregularity. This is the basis of a method of nondestructive evaluation of materials. Problems in which one seeks information about material prooerties from scattered waves are known as inverse problems. Traditionally, such problems are analyzed either b...

Modern sonar and radar measurement systems are widely used in the field of nondestructive testing for a long time. Usually reference signal is emitted towards the object to be investigated and we get a signal, which is the sum of reference signal reflected from different plies. The task of signal processing is to determine time instances corresponding positions of certain ply, which allow analy...