This paper aims to study the mechanical behaviour and failure mechanism of intact rocks under different loading conditions using the grain based model implemented in the universal distinct element code (UDEC). The grain based numerical model is a powerful tool to investigate complicated micro-structural mechanical behaviour of rocks. In the UDEC grain based model, the intact material is simulat...

Three studies, involving a total of 145 observers examined quantitative theories of the overestimation of perceived optical slant. The first two studies investigated the depth/width anisotropies on positive and negative slant in both pitch and yaw at 2 and 8 m using calibrated immersive virtual environments. Observers made judgments of the relative lengths of extents that were frontal with thos...

In this research, the effects of a sedimentary basin, environmental conditions, and the passage of time were investigated on consolidation processes and engineering characteristics of fine-grained soils in Kerman city. For this purpose, the natural consolidation curves of soil samples extracted from different locations of Kerman city were compared with the Kerman city intrinsic consolidation li...

Attosecond extreme-ultraviolet (XUV) pulses generated in gases via high-order harmonic generation typically carry an intrinsic positive chirp. Compression of such pulses has been demonstrated using metallic transmission filters, a method with very limited tunability. We compare here the compression achievable with a diffraction grating based method with that of metallic filters using simulated ...

There has been an increasing interest in the use of autonomous underwater vehicles for ocean exploration. Side scan sonars are often installed onboard these vehicles to survey the sea floor. In this context, the need to transmit side scan sonar images over an acoustic low-bandwidth channel calls for the use of compression techniques. This paper proposes a wavelet-based method for compressing si...

We present a compile{time method to select compression and distribution schemes for sparse matrices which are computed using Fortran 90 array intrinsic operations. The selection process samples input sparse matrices to determine their sparsity structures. It is also guided by cost functions of various sparse routines as measured from the target machine. The Fortran 90 array expression is then t...

Superior Vena Cava Syndrome (SVCS) is caused by gradual compression of the Superior Vena Cava (SVC), a major vessel in the superior mediastinum that collects venous return to the heart from the head, arms and the upper torso [1]. In clinical practice, SVCS is predominantly associated with malignancies that cause extrinsic compression. The commonly documented malignancies are lung carcinoma and ...