Rapid development of engineering activities expands through a variety of rock engineering processes such as drilling, blasting, mining and mineral processing. These activities require rock dynamic fracture mechanics method to characterize the rock behavior. Dynamic fracture toughness is an important parameter for the analysis of engineering structures under dynamic loading. Several experimental...

This paper presents a technique to evaluate the fracture parameters by combining the edge based smoothed finite element method (ESFEM) and the scaled boundary finite element method (SBFEM). A semi-analytical solution is sought in the region close to the vicinity of the crack tip using the SBFEM, whilst, the ESFEM is used for the rest of the domain. As both methods satisfy the partition of unity...

Programmable platform architectures are a compelling alternative to ASICs for network processing applications, but they are notoriously difficult to program. The reason for this is the large discrepancy between the concurrency requirements of applications and the concurrency capabilities of the platforms. Domain-specific languages such as Click are a good way to capture application concurrency,...

This brief presents the architecture and implementation of an analog processor, which in a way akin to a digital microprocessor, embodies a physical model of the universal Turing machine. The analog microprocessor (A P) executes software programs, while nevertheless operating on analog sampled data values. This enables the design of mixed-mode systems which retain the speed/area/power advantage...

A suitable piece of software is presented to connect Abaqus, a sophisticated finite element package, with Matlab, the most comprehensive program for mathematical analysis. This interface between these well-known codes not only benefits from the image processing and the integrated graph-plotting features of Matlab but also opens up new opportunities in results postprocessing, statistical analysi...

[1] We provide new insights into the two main seismic events that occurred in 2012 in the Emilia region, Italy. We extend the results from previous studies based on analytical inversion modeling of GPS and RADARSAT-1 InSAR measurements by exploiting RADARSAT-2 data. Moreover, we benefit from the available large amount of geological and geophysical information through finite element method (FEM)...

When derivatives of a spectral element solution are used in a different context, such as visualization or in calculations with a different numerical method, the discontinuity of the derivatives at the element interfaces is a potential problem. Asymptotically, the jumps in the derivatives decay spectrally fast, but it is not always possible or efficient use of computational resources to repeat t...

This paper presents a new processing cell circuit, suitable for use in massively parallel fine-grain processor arrays, oriented towards image processing applications. The design, based on dynamic logic, is efficient for both local and global operations. In this paper we discuss design trade-offs and provide detailed description of the architecture. A cellular processor array based on the presen...

− This paper describes an analogue processing element (APE) suitable for high-density image sensor/processor array integrated circuits. The design tradeoffs between area, power consumption, speed and accuracy are discussed and the architecture of the APE is presented. The design follows a switched-current “analogue microprocessor” approach while the implementation of arithmetic operations is si...

Nonlinear diffusion methods have proved to be powerful methods in the processing of 2D and 3D images. They allow a denoising and smoothing of image intensities while retaining and enhancing edges. On the other hand, compression is an important topic in image processing as well. Here a method is presented which combines the two aspects in an efficient way. It is based on a semi–implicit Finite E...