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A field effect transistor is fabricated using a composite quantum well structure consisting of adjacent semiconductor quantum wells… Contents Dedication Acknowledgements Table of Contents 1. Introduction 2. Experiment 2.1 Sample properties 2.2 Device fabrication 2.2.1 Bonding pad 2.2.2 Hall bar Mesa 2.2.3
In this research we propose a highly predictable, low overhead and yet dynamic, memory allocation strategy for embedded systems with scratch-pad memory. A scratch-pad is a fast compiler-managed SRAM memory that replaces the hardware-managed cache. It is motivated by its better real-time
Pre-execution is a novel latency-tolerance technique where one or more helper threads run in front of the main computation and trigger long-latency delinquent events early so that the main thread makes forward progress without experiencing stalls. The most important issue in pre-execution
The performance of demand-driven caching is known to depend on the locality of reference exhibited by the stream of requests made to the cache. In spite of numerous efforts, no consensus has been reached on how to formalize this notion, let alone
Several trends in technology have important implications for embedded systems of the future. One trend is the increasing density and number of transistors that can be placed on a chip. This allows designers to fit more functionality into smaller devices, and to
Supersonic mixing enhancement techniques are of considerable interest; typically qualitative observations of shear layer growth rate are used to compare these techniques. A more accurate assessment of the efficiency of various mixing techniques could be made using local species concentrations at specific
In order to maximize household refrigerator performance, it is important to understand the basic relationship between each component as well as the relationship between refrigerant and lubricant used in the system. This study examines the particular role of the accumulator in a
Liquid crystal displays are commonly used in various applications and subjected to numerous environmental and handling conditions that can especially affect the performance and life of these devices. In addition to humidity and temperature exposure, cyclic loadings and handling conditions (bending, repetitive
Phase change technology is a science that is continually finding new applications, from passive refrigeration cycles to semiconductor cooling. The primary heat transfer techniques associated with phase change heat transfer are pool boiling, flow boiling, and spray cooling. Of these techniques, spray
Probabilistic Risk Assessment (PRA) is a methodology consisting of techniques to assess the probability of failure or success of a system. In many modern technological systems, especially safety critical systems such as space systems, nuclear power plants, medical devices, defense systems, etc,