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Full-Text Articles in Analytical, Diagnostic and Therapeutic Techniques and Equipment

Analysis Of Indentation Loading Of Cortical Bone Using Acoustic Emission Techniques, Ashkan Safari, Ger Reilly, Brendan Mccormack Dec 2005

Analysis Of Indentation Loading Of Cortical Bone Using Acoustic Emission Techniques, Ashkan Safari, Ger Reilly, Brendan Mccormack

Conference Papers

In this study, we recorded the number of Acoustic emission (AE) hits and related AE energy during indentation fracture of cortical bone using a PAC PCI-2 card and pico sensor. A threshold value of 43dB was used to filter premature trigger due to background noise. Registered AE hits had more than one count (threshold crossing). Amplifier gain was set at 40dB with a (0.1-1) MHz band pass filter. 8mm cubes of cortical bones were indented in the longitudinal direction at constant crosshead speed of 1 mm min-1 using a large 2D, 50˚ wedge indenter. We hypothesised that signals occurring as …


Cardiac Transplant Following Failed Fontan Or Glenn Procedures., Naveen L. Pereira, Girish S. Shirali Oct 2005

Cardiac Transplant Following Failed Fontan Or Glenn Procedures., Naveen L. Pereira, Girish S. Shirali

Manuscripts, Articles, Book Chapters and Other Papers

No abstract provided.


Tracking The Time To Recovery After Induced Loudness Reduction (L), Yoav Arieh, Karen Kelly, Lawrence E. Marks May 2005

Tracking The Time To Recovery After Induced Loudness Reduction (L), Yoav Arieh, Karen Kelly, Lawrence E. Marks

Department of Psychology Faculty Scholarship and Creative Works

In induced loudness reduction (ILR), a strong tone causes the loudness of a subsequently presented weak tone to decrease. The aim of the experiment was to determine the time required for loudness to return to its initial level after ILR. Twenty-four subjects were exposed to 5, 10, 20, or 40 brief bursts of 2500-Hz pure tones at 80-dB SPL (inducers) and then tested in a series of paired comparison trials. Subjects compared the loudness of a weak target (2500 Hz at 60-dB SPL) to the loudness of a comparison tone at 500 Hz previously judged to match the target. The …