Objective(s): This study was designed to assess defect detectability in positron emission tomography (PET) imaging of abdominal lesions. Methods: A National Electrical Manufactures Association International Electrotechnical Commission phantom was used. The simulated abdominal lesion was scanned for 10 min using dynamic list-mode acquisition method. Images, acquired with scan duration of 1-10 mi...

In this paper, we propose a new methodology for diagnosis of delay defects in the deep sub-micron domain. The key difference between our diagnosis framework and other traditional diagnosis methods lies in our assumptions of the statistical circuit timing and statistical delay fault size. Due to the statistical nature of the problem, achieving 100% diagnosis resolution cannot be guaranteed. To e...

Antenatal midgut volvulus is a rare surgical emergency in which bowel is severely compromised. Rarely the etiology is a mesenteric defect. Early diagnosis is essential and lifesaving in the immediate newborn period. Typically upper gastrointestinal or ultrasound imaging can be suggestive of the diagnosis of volvulus in the neonate. Sometimes, however, the diagnosis may be elusive. Herein, we re...

Abstract Wheel polygonal wear is a common and severe defect, which seriously threatens the running safety reliability of railway vehicle especially locomotive. Due to non-stationary conditions (e.g., traction braking) locomotive, passing frequencies wheel will exhibit time-varying behaviors, makes it too difficult effectively detect defect. Moreover, most existing methods only achieve qualitati...

Time-of-flight diffraction method (ToFD) is an amplitude-independent sizing method which is based on the measurement of time-of-flight of defect tip diffracted waves. Although ToFD can measure through-wall length of defect accurately, this method is not capable of measuring horizontal defect size. In this paper, a new ToFD method for evaluating horizontal planar defects is presented. The finite...

PEDIATRIC PRACTICE: A. THE PEDIATRICIAN AS A SPECIALIST T lIE BOLE of time pediatrician in the totality of medical practice in timis country undergoes close scrutiny; panels and papers imave dealt witim it. Pediatric educators are vitally concerned timat timeir teaclming programs be tailored to future needs; official interest of the American Academy of Pediatrics lmas been expressed througim it...