Advanced, waveform based acoustic emission (AE) techniques have been developed to evaluate damage mechanisms in the testing of composite materials. This approach, more recently referred to as Modal AE, provides an enhanced capability to discriminate and eliminate noise signals from those generated by damage mechanisms. Much more precise source location can also be obtained in comparison to conv...

This project examines the nature of password cracking and modern applications. Several applications for different platforms are studied. Different methods of cracking are explained, including dictionary attack, brute force, and rainbow tables. Password cracking across different mediums is examined. Hashing and how it affects password cracking is discussed. An implementation of two hash-based pa...

Suppressing hydrogen embrittlement in martensitic steels is a longstanding challenge. Here, we studied the effects of prior austenite grain (PAG) shape and size with 0.25C steel utilising novel situ H-charging, constant-displacement Tuning-fork testing (TFT) H-permeation tests. Anisotropic elongated PAG structure has enhanced HE resistance transverse to rolling direction (RD) slower crack propa...

current article describes application of zeolites in fluid catalytic cracking (fcc). the use of several zeolitic additives for the production light olefins and reduction of pollutants is described. application of zeolites as fluid catalytic cracking (fcc) catalysts and additives due to the presence of active acid sites in the zeolite framework  increase the formation of desired cracking product...

In Portland cement concrete (PCC) pavements, tie bars are commonly used at longitudinal construction joints (LCJs) to prevent the lanes from separating. Meanwhile, increase in multiple due greater traffic volumes has raised concerns about potential cracking; this led use of dowel instead LCJs. However, there is a paucity studies focused on comparison between behaviors pavement based restrained ...

New methods of degradations on the pavement’s surface, such as top-down cracking and delamination, caused by repeated passage heavy vehicles led to questions about impact contact between tire pavement. In fact, increase service life structures, future road design must have a precise knowledge consequences parameters state stress deformation in this paper, tractive rolling under effect friction ...