In contrast to single frequency conventional eddy current technique (ECT), in pulse ECT the coil is excited by repetitive broadband pulse. The pulsed excitation contains wide spectrum of frequencies. Each frequency has different penetrability and hence using pulsed eddy current (PEC) technique, large areas of structure with multiple variations in thickness can be scanned without the need for pa...

AIM To investigate the corneal endothelial cell density and morphology and central corneal thickness in the Guangxi Maonan and Han adolescent students of China. METHODS Noncontact specular microscope (Topcon SP3000P, Tokyo, Japan) was performed in 133 adolescent students of Maonan nationality (M:F 54:79) and 105 adolescent students of Han nationality (M:F 50:55), 5 to 20y of age, who were ran...

www.PosterPresentations.com • Chip design quality affects the manufacturing process. • Dielectric thickness inside chip during tape-out may degrade yield. • Thickness variation is proportional to local feature density [4] (Fig. 4) • During Chemical-Mechanical Polishing (CMP) process, the thickness variation may increase due to difference in density of overlaying layer. [5]. • To improve chip ma...

BACKGROUND The thickness of the fibrous cap is a major determinant in the vulnerability of atherosclerotic plaque to rupture. It has been demonstrated that intravascular ultrasound (IVUS) backscatter from fibrous tissue is strongly dependent on the ultrasound beam angle of incidence. This study investigated the feasibility of using a new IVUS color mapping technique representing the angle-depen...

in this paper, formation of wrinkling in bimetal deep drawing process has been investigated by the analytical, numerical and experimental methods. the effects of width of flange, fillet radii of matrix and punch, clearance of blank holder, contact conditions and relative thickness of two sheets on the number and height of wrinkle waves are studied. clearance and contact conditions have the grea...

background: hadron therapy for malignant tumor is becoming increasingly popular. there are many factors which effect on implementation of a proper treatment planning. the purpose of this work is to investigate the inhomogeneity effects as affecting factor on proton range, full width at half maximum (fwhm) and 20% position of penumbra (p20) by mcnpx code. materials and methods: an inhomogeneous ...

background: sodium arsenite and/ or vasectomy may cause variation in sex hormones which affect pathophysiology of reproductive organs. objective: the aim was to investigate the morphological changes in structure of testis and hormonal imbalance in bilateral vasectomised rats treated with sodium arsenite. materials and methods: four groups of rats: bilateral vasectomy + sodium arsenite, bilatera...