BioResources ◽  
2015 ◽  
Vol 11 (1) ◽  
Author(s):  
Zhiqiang Wang ◽  
Jianhui Zhou ◽  
Meng Gong ◽  
Ying Hei Chui ◽  
Xiaoning Lu

Author(s):  
Ryan Ross ◽  
Gil Garteiz ◽  
Stephanie Zajac

Abstract Characterization of Computed Tomography X-Ray ionizing dose will be presented along with a methodology to protect space bound flight hardware from exceeding total ionizing dose (TID) budget prior to mission completion.


2011 ◽  
Vol 55-57 ◽  
pp. 758-761
Author(s):  
Shiuh Chuan Her ◽  
Ming Chih Chang

Ultrasonic is one of the most common uses of non-destructive evaluation technique. It could detect flaws inside the structure and on the surface such as voids, holes and cracks. In this investigation, a 304 steel block with a small hole inside the structure was fabricated. The radius of the hole was evaluated by the pulse-echo ultrasonic technique. In this work, 2.25MHz, 5MHz and 10MHz of incident waves were employed to detect the radius of the hole inside the structure. The errors of a hole with 2.5 mm radius measured by 5 MHz and 10MHz longitudinal wave were 1.15% and 6.6%, respectively. Experimental results showed that the accuracy of flaw sizing detection by ultrasonic technique depends on the frequency of the incident wave.


2019 ◽  
Vol 163 ◽  
pp. 52-58 ◽  
Author(s):  
Antonio Pantano ◽  
Nicola Montinaro ◽  
Donatella Cerniglia ◽  
Federico Micciulla ◽  
Silvia Bistarelli ◽  
...  

2008 ◽  
Vol 589 ◽  
pp. 251-256
Author(s):  
István Mészáros

In this paper a new data evaluation technique is presented for non-destructive magnetic measurements. This method is based on the multiphase hyperbolic model of magnetization and it is called model based data evaluation (MBDE) technique. The MBDE method allows us to separate the magnetic contribution of the magnetizing yoke from the measured magnetization curves. Therefore the determined magnetic properties of the tested sample are independent of the parameters of the applied magnetic yoke and the lift-off. The proposed method could become a useful tool in magnetic non-destructive evaluation (NDE).


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