Browsing Singapore-MIT Alliance (SMA) by Title
Now showing items 212-231 of 554
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Graded InGaN Buffers for Strain Relaxation in GaN/InGaN Epliayers Grown on Sapphire
(2002-01)Graded InGaN buffers are employed to relax the strain arising from the lattice and thermal mismatches between GaN/InGaN epilayers grown on sapphire. The formation of V-pits in linearly graded InGaN/GaN bulk epilayers is ... -
Granular Attrition due to Rotary Valve in a Pneumatic Conveying System
(2005-01)The rotary valve is a widely used mechanical device in many solids-handling industrial processes. However, it may also be responsible for most of the attrition effects occurring in a typical process. In this study, the ... -
Growth and Characterization of LiCoO₂ Thin Films for Microbatteries
(2005-01)LiCoO₂thin films have been grown by pulsed laser deposition on stainless steel and SiO₂/Si substrates. The film deposited at 600°C in an oxygen partial pressure of 100mTorr shows an excellent crystallinity, stoichiometry ... -
Growth and Properties of (001)-oriented Pb(Zr₀.₅₂Ti₀.₄₈)O₃/LaNiO₃ Films on Si(001) Substrates with TiN Buffer Layers
(2004-01)Pulsed laser deposition has been used to grow Pb(Zr₀.₅₂Ti₀.₄₈)O₃ (PZT)/LaNiO₃ (LNO) heterostructures with restricted crystallographic orientations on bare Si(001) and SiO₂-coated Si(001) substrates, using TiN buffer layers. ... -
Growth of ZnO Nanorods on GaN Using Aqueous Solution Method
(2005-01)Uniformly distributed ZnO nanorods with diameter 80-120 nm and 1-2µm long have been successfully grown at low temperatures on GaN by using the inexpensive aqueous solution method. The formation of the ZnO nanorods and ... -
Hardware Transactional Memory
(2004-01)This work shows how hardware transactional memory (HTM) can be implemented to support transactions of arbitrarily large size, while ensuring that small transactions run efficiently. Our implementation handles small ... -
Hierarchical Multi-Bottleneck Classification Method And Its Application to DNA Microarray Expression Data
(2003-01)The recent development of DNA microarray technology is creating a wealth of gene expression data. Typically these datasets have high dimensionality and a lot of varieties. Analysis of DNA microarray expression data is a ... -
High Density Single Crystalline GaN Nanodot Arrays Fabricated Using Template-Assisted Selective Growth
(2005-01)High density, uniform GaN nanodot arrays with controllable size have been synthesized by using template-assisted selective growth. The GaN nanodots with average diameter 40nm, 80nm and 120nm were selectively grown by ... -
High hole and electron mobilities using Strained Si/Strained Ge heterostructures
(2004-01)PMOS and NMOS mobility characteristics of the dual channel (strained Si/strained Ge) heterostructure have been reviewed. It is shown that the dual channel heterostructure can provide substantially enhanced mobilities for ... -
High Indium Concentration InGaN/GaN Grown on Sapphire Substrate by MOCVD
(2005-01)The InGaN system provides the opportunity to fabricate light emitting devices over the whole visible and ultraviolet spectrum due to band-gap energies E[subscript g] varying between 3.42 eV for GaN and 1.89 eV for InN. ... -
High Optical Quality Nanoporous GaN Prepared by Photoelectrochemical Etching
(2005-01)Nanoporous GaN films are prepared by UV assisted electrochemical etching using HF solution as an electrolyte. To assess the optical quality and morphology of these nanoporous films, micro-photoluminescence (PL), micro-Raman ... -
High Temperature Deformation Behavior of Bulk Metallic Glass and Its Composites
(2007-01)The homogeneous deformation of Zr-based bulk metallic glass composites is studied near the glass transition temperature, at various levels of reinforcement volume fraction. Through examination of the constitutive response, ... -
High Temperature Deformation Behavior of in-situ Bulk Metallic Glass Matrix Composites
(2006-01)Macroscopic ductility is promoted in bulk metallic glasses by both composite reinforcements (at low temperatures) and by the activation of viscous flow mechanisms (at high temperatures). It is of fundamental interest to ... -
How to Do a Million Watchpoints: Efficient Debugging Using Dynamic Instrumentation
(2007-01)Application debugging is a tedious but inevitable chore in any software development project. An effective debugger can make programmers more productive by allowing them to pause execution and inspect the state of the ... -
A Hybrid Intelligent System for Stamping Process Planning in Progressive Die Design
(2004-01)This paper presents an intelligent, hybrid system for stamping process planning in progressive die design. The system combines the flexibility of blackboard architecture with case-based reasoning. The hybrid system has the ... -
Identification of Convection Constants for Electronic Packages Using Modified Genetic Algorithm and Reduced-Basis Method
(2002-01)A new inverse analysis method is presented to identify parameters of heat convection in microelectronic packages. This approach adopts a modified Micro Genetic Algorithm (µGA) in finding the global optimum of parameters. ... -
Imaging at the Nano-scale: State of the Art and Advanced Techniques
(2003-01)Surface characteristics such as topography and critical dimensions serve as important indicators of product quality and manufacturing process performance especially at the micrometer and the nanometer scales. This paper ... -
Imitation Learning of Whole-Body Grasps
(2006-01)Humans often learn to manipulate objects by observing other people. In much the same way, robots can use imitation learning to pick up useful skills. A system is detailed here for using imitation learning to teach a robot ... -
An Immersed Interface Method for the Incompressible Navier-Stokes Equations
(2004-01)We present an immersed interface algorithm for the incompressible Navier Stokes equations. The interface is represented by cubic splines which are interpolated through a set of Lagrangian control points. The position of ... -
An Immersed Interface Method for the Incompressible Navier-Stokes Equations in Irregular Domains
(2005-01)We present an immersed interface method for the incompressible Navier Stokes equations capable of handling rigid immersed boundaries. The immersed boundary is represented by a set of Lagrangian control points. In order to ...