In this work the influence of considering wheel-rail contact creepages on fatigue crack growth rates due to Rolling Contact Fatigue (RCF) is studied. For purpose, FASTSIM algorithm, which considers moving complex pressure distribution with slipping and adhesion zones patch, has been implemented in Abaqus using FORTRAN code subroutines. The developed methodology validated a 60E1 rail profile mod...

A high-level fault modeling and testing philosophy is proposed which is aimed at ensuring full detection of lowlevel, physical faults, as well as the industry-standard single stuck-line (SSL) faults. A set of independent functional faults and the corresponding functional tests are derived (induced) from the circuit under test; of particular interest are SSL-induced functional faults or SIFs. We...

Recent work has focused on exploiting the observation that the stress-sum contours (isopachics), obtained from TSA, in the vicinity of the tip take the form of a simple curve – the cardioid. The analysis made use of the cardioid nature of the isopachics by deriving expressions for the SIFs in terms of the cardioid area and the positions of certain tangents to the curve. Both Genetic Algorithms ...

Metal-enhanced fluorescence (MEF) and delayed fluorescence (alpha α-S1) studies of acriflavin have been undertaken using steady-state and time-resolved fluorescence measurements on silver island films (SiFs) supporting a thin poly(vinyl alcohol) (PVA) polymer film. Nearly a 3.5-fold enhancement in the far-field fluorescence intensity of acriflavin is observed coupled with a decrease in decay ti...

This paper proposes a method to improve the fractional interpolation of reference samples in Versatile Video Coding (VVC) intra prediction. The proposed uses additional filters which use more integer-positioned for prediction according frequency information samples. In VVC, 4-tap Discrete Cosine Transform-based filter (DCT-IF) and Smoothing (SIF) are alternatively performed on block size direct...

In this paper selected aspects of human factors are discussed that should be taken into account during the design of safety-related functions for a complex hazardous installation and its protections. The layer of protection analysis (LOPA) methodology is used for simplified risk analysis based on defined accident scenarios. To control the risk the safety instrumented functions (SIFs) are identi...

A high-level fault modeling and testing philosophy is proposed which is aimed at ensuring,full detection of lowlevel, physical faults, as well as the industry-standard single stuck-line (SSL) faults. A set of independent functional faults and the corresponding ,functional tests are derived (induced) from the circuit under test; ofparticulur interest are SSL-induced functional faults or SIFs. We...

We use the singular function boundary integral method (SFBIM) to solve two model fracture problems on the plane. In the SFBIM, the solution is approximated by the leading terms of the local asymptotic solution expansion, which are also used to weight the governing biharmonic equation in the Galerkin sense. The discretized equations are reduced to boundary integrals by means of the divergence th...