Sand compaction piles are used in practice for ground improvement of soft subsoil in order to accelerate consolidation, reduce compressibility, and increase strength. The current design procedure of sand compaction piles is based on simple empirical calculations, which does not take full account of the sand pile behaviour. This research project investigates the behaviour of a base reinforced em...

The data paths of most contemporary general and special purpose processors include registers, adders and other arithmetic circuits. If these circuits are also used for Built-In Self Test, the extra area required for embedding testing structures can be cut down eflciently. Several schemes based on accumulators, subtracters, multipliers and shgt registers have been proposed and analyzed in the pa...

This paper describes an analytical study that was performed as part of the development of an externally deployable energy absorber (DEA) concept. The concept consists of a composite honeycomb structure that can be stowed until needed to provide energy attenuation during a crash event, much like an external airbag system. One goal of the DEA development project was to generate a robust and relia...

This paper presents a compaction method of functional programs (eg, ML programs) for super-scalars or VLIW architectures. It is a generalisation of the Percolation scheduling system 1] and Perfect Pipelining 2]. It is described by a set of program transformations respecting data-dependences. Instead of managing a control-ow based representation of programs, the compaction is directly applied to...

INTRODUCTION Isolated left ventricular non-compaction is a recently described form of cardiomyopathy that is associated with a significant risk of life-threatening arrhythmia and thromboembolic complications. CASE PRESENTATION We report the presentation, diagnosis and management of isolated left ventricular non-compaction in a 54-year-old Caucasian woman presenting with progressive symptoms o...

Metamorphic devolatilization generates fluid and grain-scale porosity. Evidence for high fluid pressure indicates the devolatilization occurs under poorly-drained conditions. Under such conditions fluid expulsion is limited by the capacity of the reacted rocks to resist compaction or the rate at which deformation modifies the permeability of the overlying rocks. In the former case the compactio...

In this paper we study the two-dimensional compaction of integrated circuit layouts. A curvilinear representation for circuit elements, specifically chosen to make the compaction efficient, is developed. A Monte Carlo algorithm with heuristic termination criteria was applied to a variety of designs. These experiments give running times for compaction that are consistent with a conjectured avera...

Polycomb group proteins preserve body patterning through development by maintaining transcriptional silencing of homeotic genes. A long-standing hypothesis is that silencing involves creating chromatin structure that is repressive to gene transcription. We demonstrate by electron microscopy that core components of Polycomb Repressive Complex 1 induce compaction of defined nucleosomal arrays. Co...

Test pattern storage is an important problem aaect-ing all Design for Testability (DfT) techniques based on scan-path. Test compaction is the key idea to reduce this problem, but in case of partial-scan test compaction would concern the concatenation and overlapping of test sequences instead of test vectors. Unfortunately, standard sequential TPGs do not show suucient capabilities in test seque...

[1] Conditions for shear and compaction localization are examined for stress states on an elliptic yield cap in the space of Mises equivalent shear stress t and mean normal compressive stress s. Localization is predicted to occur when the slope of the hydrostatic stress versus inelastic volume strain curve falls to a critical value kcrit. When applied to the standard triaxial test, the analysis...