A5103193317- nanoparticles nucleation surface interactions
- Theoretical and Computational Physics
- Material Dynamics and Properties
- Fluid Dynamics and Thin Films
- Solidification and crystal growth phenomena
- Crystallization and Solubility Studies
- Neonatal and fetal brain pathology
- Molecular spectroscopy and chirality
- Semiconductor Lasers and Optical Devices
- Market Dynamics and Volatility
- Liquid Crystal Research Advancements
- Semiconductor Quantum Structures and Devices
- Glass properties and applications
- Energetic Materials and Combustion
- Advanced Chemical Physics Studies
- Non-Invasive Vital Sign Monitoring
- Chemical and Physical Properties of Materials
- Ga2O3 and related materials
- Optical Coatings and Gratings
- Concrete Properties and Behavior
- Boron and Carbon Nanomaterials Research
- Neonatal Respiratory Health Research
- Complex Systems and Time Series Analysis
- Innovative concrete reinforcement materials
- Adhesion, Friction, and Surface Interactions
Cukurova University
2005-2024
Georgia Institute of Technology
1990-1992
We study the flattening of a corrugated crystal surface for case when mass transport is driven by diffusion and temperature well below roughening equilibrium facet. For considered geometry, problem one dimensional morphology consists collection terraces separated straight, parallel steps. In this situation, kinetics step-step interactions alone. obtain variable (shape-preserving) solutions to both differential equation motion profile z(x,t) discrete equations individual terraces' widths...
We study the morphological equilibration of a finite, facetted crystal by use phenomenological equations motion. The relevant atomistic kinetic processes (edge transfer, kink attachment and/or detachment, terrace hopping, and surface diffusion) are introduced progressively with special attention given to proper treatment latter. Unlike all previous work, role individual step motion (including effect step-step interactions) is considered in detail. Approximate analytic results obtained for...
We study epitaxial growth onto a nonplanar substrate by use of phenomenological equations motion. The is chosen as periodic sequence mesa structures composed well-defined crystallographic facets. Although surface diffusion not treated explicitly, the problem formulated at level sophistication sufficient to account for atomistic kinetic processes deposition, desorption, adatom exchange with kink sites, and interfacet migration. Numerical integration final reveals variety morphologies...
BACKGROUND: Delayed cord clamping is the standard of care for both term and preterm infants worldwide. The aim this study was to evaluate effect 60-second or 180-second delayed during labor on cerebral oxygenation cardiac function. METHODS: Healthy newborns were divided into two groups: a delay in (60-s DCC) (180-s at birth. Pulse oximetry near-infrared spectroscopy (cNIRS) probes placed postnatal care. A total 84 healthy included study. Preductal oxygen saturation (SpO2), heart rate, cNIRS...
The mobility of clusters on a semiconductor surface for various values cluster size is studied as function temperature by kinetic Monte Carlo method. resides the square grid. Kinetic processes such diffusion single particles surface, their attachment and detachment to/from clusters, along edges are considered. considered in this study consist 150–6000 atoms per average. A statistical probability motion to each direction assigned particle where with four nearest neighbors assumed be immobile....
We study the morphological equilibration of a periodically corrugated one-dimensional crystalline surface under various forms interaction between neighbouring atomic steps on surface. The consideration is assumed to be below its roughening temperature and only diffusion considered as means mass transport. Both continuum discrete equations motion for evolution are derived compared. Continuum in limit 'diffusion limited growth' lead same form variation height provide additional information...
We study the equilibration of an initial surface misoriented relative to a high-symmetry (low-energy) direction. The considered consists parallel monatomic ledges separated by terraces. Both repulsive and attractive interactions between step pairs are taken into account. Repulsive steps assumed vary as where is average separation neighbouring steps. Attractive lead bunching, consequence resulting morphology in form macro-steps large flat time dependence parts that separates (step bunches)...
The electron mobility at a AlGaN/GaN heterostructure is calculated using an ensemble Monte Carlo (MC) technique where the emphasis primarily given to screening effects and dislocation scattering. Calculations of steady-state velocity-field curves confirm that has significant on transport properties heterostructures. calculations are obtained for Al-content (8–35%), thickness AlGaN barrier (30–500[Formula: see text]Å) various temperatures (77–1000[Formula: text]K). Based our theoretical...