scholarly journals Measuring the wall depletion length of nanoconfined DNA

2018 ◽  
Vol 149 (10) ◽  
pp. 104901 ◽  
Author(s):  
Aditya Bikram Bhandari ◽  
Jeffrey G. Reifenberger ◽  
Hui-Min Chuang ◽  
Han Cao ◽  
Kevin D. Dorfman
Keyword(s):  
Wall Depletion

Analysis of the Physical and Chemical Factors Determining Compositional Variations in the MOCVD Growth of Indium Gallium Arsenide

1990 ◽  
Vol 204 ◽  
Author(s):  
Erik O. Einset ◽  
Klavs F. Jensen ◽  
Thomas F. Kuech
Keyword(s):  
Transport Model ◽  
Three Dimensional ◽  
Chemical Vapor ◽  
Lattice Parameter ◽  
Organic Chemical ◽  
Mocvd Growth ◽  
Metal Organic ◽  
Compositional Variations ◽  
Wall Depletion ◽  
Physical And Chemical

ABSTRACTWe present an analysis of compositional variations in the growth of the compound semiconductor, InxGal-xAs, by metal organic chemical vapor deposition (MOCVD). A three dimensional transport model for fluid flow, heat, and mass transfer is solved using the finite element method. The Delta Lattice Parameter (DLP) model is used to describe the thermodynamics of the solid solution, and the Hertz-Langmuir equation is used to calculate the evaporation rate of indium from the growing crystal. Wall depletion is incorporated by allowing for explicit wall deposition of In vapor throughout the reactor.Comparison of model predictions with experimental observations by MOCVD of InGaAs in a horizontal reactor suggests that transport phenomena lead to composition variations across the substrate, and that solution thermodynamics have little effect on the InAs incorporation rate at a given deposition temperature. However, thermodynamic factors appear to influence the change in indium incorporation with growth temperature.

The effect of wall depletion and hydrodynamic interactions on stress-gradient-induced polymer migration

Soft Matter ◽  
2016 ◽  
Vol 12 (27) ◽  
pp. 5883-5897 ◽  
Author(s):  
Hossein Rezvantalab ◽  
Guorui Zhu ◽  
Ronald G. Larson
Keyword(s):  
Stress Gradient ◽  
Continuum Theory ◽  
Hydrodynamic Interactions ◽  
Wall Depletion ◽  
Polymer Migration ◽  
Mesoscopic Simulations

Predicting the stress-gradient-induced migration of polymers in presence of solid boundaries: continuum theory and mesoscopic simulations.

Evaluation of Dicamba Persistence among Various Agricultural Hose Types and Cleanout Procedures Using Soybean (Glycine max) as a Bio-Indicator

Weed Science ◽  
2017 ◽  
Vol 65 (2) ◽  
pp. 305-316 ◽  
Author(s):  
Gary T. Cundiff ◽  
Daniel B. Reynolds ◽  
Thomas C. Mueller
Keyword(s):  
Electron Microscopy ◽  
Dry Matter ◽  
Dry Matter Yield ◽  
Polyethylene Blends ◽  
Synthetic Rubber ◽  
Polyethylene Blend ◽  
Sequestration Potential ◽  
Wall Depletion ◽  
Scanning Electron ◽  
Methoxybenzoic Acid

Synthetic rubbers, synthetic plastic polymers (polyvinyl chlorides [PVC]), polyurethane blends, and polyethylene blends make up modern-day agricultural spray hoses. The objective of this study was to determine whether agricultural hose types would differ with respect to 3,6-dichloro-2-methoxybenzoic acid (dicamba) sequestration. Field and greenhouse studies were conducted to evaluate the sequestration potential of dicamba within five agricultural hose types when cleaned with different cleanout procedures. Rinsate solutions were applied to soybean, which was used as a bio-indicator to test for cleanout efficiency. Differences among hose types and cleanout procedures exist with observations including soybean injury, height reduction, dry matter, yield, and part per million by volume (ppmv) analyte retained. The makeup of PVC polyurethane-blend and synthetic rubber–blend hoses increased retention of dicamba analyte when compared with the polyethylene blend hose. No differences were observed after the addition of ammonia to the cleanout solution when compared with water alone. Differences in a hose type’s ability to sequester the dicamba analyte may have more to do with the hose’s internal chemical composition, manufacturing process, and composition breakdown. Scanning electron microscopy revealed imperfections in new PVC polyurethane and synthetic rubber hoses that eventually lead to inner wall depletion of these hose types. This is in contrast to what was found in the polyethylene-blend hose type, in which the inner wall is smooth and free of imperfections.

The effect of wall depletion on the rheology of microfibrillated cellulose water suspensions by optical coherence tomography

Cellulose ◽  
2014 ◽  
Vol 21 (3) ◽  
pp. 1261-1275 ◽  
Author(s):  
Tapio Saarinen ◽  
Sanna Haavisto ◽  
Anni Sorvari ◽  
Juha Salmela ◽  
Jukka Seppälä
Keyword(s):  
Optical Coherence Tomography ◽  
Microfibrillated Cellulose ◽  
Optical Coherence ◽  
Water Suspensions ◽  
Wall Depletion

scholarly journals Erratum: “Measuring the wall depletion length of nanoconfined DNA” [J. Chem. Phys. 149, 104901 (2018)]

2019 ◽  
Vol 150 (21) ◽  
pp. 219901
Author(s):  
Aditya Bikram Bhandari ◽  
Jeffrey G. Reifenberger ◽  
Hui-Min Chuang ◽  
Han Cao ◽  
Kevin D. Dorfman
Keyword(s):  
Chem Phys ◽  
Wall Depletion

scholarly journals Analysis of rheology and wall depletion of microfibrillated cellulose suspension using optical coherence tomography

Cellulose ◽  
2017 ◽  
Vol 24 (11) ◽  
pp. 4715-4728 ◽  
Author(s):  
Janne Lauri ◽  
Antti Koponen ◽  
Sanna Haavisto ◽  
Jakub Czajkowski ◽  
Tapio Fabritius
Keyword(s):  
Optical Coherence Tomography ◽  
Microfibrillated Cellulose ◽  
Optical Coherence ◽  
Wall Depletion

scholarly journals Flow of power-law liquids in a Hele-Shaw cell driven by non-uniform electro-osmotic slip in the case of strong depletion

2016 ◽  
Vol 807 ◽  
pp. 235-257 ◽  
Author(s):  
Evgeniy Boyko ◽  
Moran Bercovici ◽  
Amir D. Gat
Keyword(s):  
Power Law ◽  
Asymptotic Approximation ◽  
Approximate Solutions ◽  
Two Dimensions ◽  
Analysis And Design ◽  
Power Law Fluids ◽  
Wall Depletion ◽  
Strong Depletion ◽  
Characteristic Pressure ◽  
Hele Shaw Cell

We analyse flow of non-Newtonian fluids in a Hele-Shaw cell, subjected to spatially non-uniform electro-osmotic slip. Motivated by their potential use for increasing the characteristic pressure fields, we specifically focus on power-law fluids with wall depletion properties. We derive a $p$-Poisson equation governing the pressure field, as well as a set of linearized equations representing its asymptotic approximation for weakly non-Newtonian behaviour. To investigate the effect of non-Newtonian properties on the resulting fluidic pressure and velocity, we consider several configurations in one and two dimensions, and calculate both exact and approximate solutions. We show that the asymptotic approximation is in good agreement with exact solutions even for fluids with significant non-Newtonian behaviour, allowing its use in the analysis and design of microfluidic systems involving electrokinetic transport of such fluids.

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