Detectability of Subsurface Defects in Polypropylene/Glass Fiber Composites Using Multiple Lock-In Frequency Modulated Algorithms

Characterization of Defects in Fiber Composites Using Terahertz Imaging

Identification of Structural Defects Using Computer Algorithms

One of the numerous methods recently employed to study the health of structures is the identification of anomaly in data obtained for the condition of the structure, e.g. the frequencies for the structural modes, stress, strain, displacement, speed,  and acceleration) which are obtained and stored by various sensors. The methods of identification applied for anomalies attempt to discover and re...

: metadiscourse in introduction sections of applied linguistics and physics research articles: exploring variation in frequency and type

abstract in written mode of language, metadiscourse markers are used commonly to help writers in general and academic writers in particular to produce coherent and professional texts. the purpose of the present study was to compare introduction sections of applied linguistics and physics articles regarding their use of interactive and interactional metadiscourse markers based on the model pro...

Investigation of Defects in Ferro-Tic Composites and their Prevention

The effective parameters that influence in situ cast ferroTic composites were investigated. Centrifugal casting of specimens was carried out using ceramic & metallic molds. OM, SEM and XRD techniques were used to examine the existence of flows in the specimens. Results show that the control of chemical composition, processing, cooling rate and heat treatment has a promising effect on the qual...

Evidence against narrow-band spatial frequency channels in human vision: the detectability of frequency modulated gratings.

Previous studies have suggested that there are narrow-band spatial frequency channels in human vision. In these studies, the detection of one sinusoidal grating is facilitated by a second subthreshold grating of neighboring spatial frequency. However, the superposition of two gratings produce regions where the contrasts subtract-where the gratings are out of phase. These regions of low contrast...