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Importance of As and Ga Balance in Achieving Long GaAs Nanowires by Selective Area Epitaxy

We report on the selective area growth (SAG) of GaAs nanowires (NWs) by the catalyst-free vapor-solid mechanism. Well-ordered GaAs NWs were grown on GaAs(111)B substrates patterned with a dielectric mask using hydride vapor...

Importance of As and Ga Balance in Achieving Long GaAs Nanowires by Selective Area Epitaxy

We report on the selective area growth (SAG) of GaAs nanowires (NWs) by the catalyst-free vapor-solid mechanism. Well-ordered GaAs NWs were grown on GaAs(111)B substrates patterned with a dielectric mask using hydride vapor...

Selective Area Growth of GaAs Nanowires and Microplatelet Arrays on Silicon by Hydride Vapor-Phase Epitaxy

In this work, we demonstrate the growth of vertically oriented GaAs nanowires (NWs) and microplatelets directly on a patterned SiO2/Si(111) substrate by hydride vapor-phase epitaxy (HVPE). Direct condensation of...

Selective Area Growth of GaAs Nanowires and Microplatelet Arrays on Silicon by Hydride Vapor-Phase Epitaxy

In this work, we demonstrate the growth of vertically oriented GaAs nanowires (NWs) and microplatelets directly on a patterned SiO2/Si(111) substrate by hydride vapor-phase epitaxy (HVPE). Direct condensation of...

Autophagy Delivers Viral Antigens for MHC Class II Presentation and is Regulated by Viral Infection
Dorothee Schmid
Jan 01, 0001
MHC class II molecules generally present peptides derived from exogenous antigens after endocytosis. However, biochemical studies have revealed that MHC class II ligands are frequently derived from intracellular proteins after...
Published by: Rockefeller University
Lawsuit by Former Women's Soccer Team Settled
Winthrop University
Jan 01, 0001
After Winthrop University did not renew her contract, Heinz filed suit alleging that she was terminated because she had complained about gender inequities and harassment. Heinz settled her claims against Winthrop University for...
Published by: Winthrop University
Estimating White-Tailed Deer Abundance in Urban Freshwater Tidal Marsh Habitat
Ian Johnson
Jan 01, 0001
In the past century deer populations have responded extremely well to human development. Today deer populations are the highest that they have been for centuries. These animals thrive in anthropogenic landscapes and in many...
Published by: Ursinus College
Using adjoint-based optimization to enhance ignition in non-premixed jets.
Gradient-based optimization is used to reliably and optimally induce ignition in three examples of laminar non-premixed mixture configurations. Using time-integrated heat release as a cost functional, the non-convex optimization...
Experimental Investigation of Ion Formation for Auto-Ignition Combustion in a High-Temperature and High-Pressure Combustion Vessel

One of the main challenges in internal combustion engine design is the simultaneous reduction of all engine pollutants like carbon monoxide (CO), total unburned hydrocarbons (THC), nitrogen oxides (NOx), and soot....

Experimental-Based Laminar Flame Speed Approximation Formulas of Efficiency-Optimized Biofuels for SI-Engine Modeling

The transition towards sustainable mobility encourages research into biofuels for use in internal combustion engines. For these alternative energy carriers, high-fidelity experimental data of flame speeds influenced by...

3D-CFD RANS Methodology to Predict Engine-Out Emissions with Gasoline-Like Fuel and Methanol for a DISI Engine

Renewable fuels, such as bio- and e-fuels, are of great interest for the defossilization of the transport sector. Among these fuels, methanol represents a promising candidate for emission reduction and efficiency increase due...

Experimental comparison of combustion and emission characteristics between a market gasoline and its surrogate

Mixtures of few representative hydrocarbon species are often used in computational studies as surrogates of market petroleum fuels, which contain hundreds of components. While this simplification is imperative for...

Development of Phenomenological Models for Engine-Out Hydrocarbon Emissions from an SI di Engine within a 0D Two-Zone Combustion Chamber Description

The increasingly stringent limits on pollutant emissions from internal combustion engine-powered vehicles require the optimization of advanced combustion systems by means of virtual development and simulation tools. Among the...

Experimental Investigation of Ion Formation for Auto-Ignition Combustion in a High-Temperature and High-Pressure Combustion Vessel

One of the main challenges in internal combustion engine design is the simultaneous reduction of all engine pollutants like carbon monoxide (CO), total unburned hydrocarbons (THC), nitrogen oxides (NOx), and soot....

Constraints on lateral gene transfer in promoting fimbrial usher protein diversity and function.
Fimbriae are long, adhesive structures widespread throughout members of the family Enterobacteriaceae. They are multimeric extrusions, which are moved out of the bacterial cell through an integral outer membrane protein called...

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