Now showing items 41-50 of 66
Ion current distribution on a substrate during nanostructure formation
(IOP Publishing Ltd, 2004-06-21)
The distribution of an ion current density on a substrate with a discontinuous film consisting of islands of dimension 25–100 nm was studied numerically. It was found that the ion current distribution is highly non-uniform ...
Acetone laser induced fluorescence for low pressure/low temperature flow visualization
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 2000-05)
Acetone fluorescence provides a useful way to visualize the fluid mixing process within supersonic wind tunnels, some of which operate in the low temperature (240–300 K) and low pressure range (0.1–1 atm). Measurements are ...
Geometric homogeneity with applications to finite-time stability
(Springer-Verlag; Springer-Verlag London Limited, 2005-06)
This paper studies properties of homogeneous systems in a geometric, coordinate-free setting. A key contribution of this paper is a result relating regularity properties of a homogeneous function to its degree of homogeneity ...
Compressive splitting failure of composites using modified shear lag theory
(Kluwer Academic Publishers; Springer Science+Business Media, 2002-05)
The shear lag model has been used in conjunction with the 3D elasticity equations to determine the stress state in a fiber/matrix system containing an interface crack. The use of a shear lag model to capture the stress ...
The 3-D Heliosphere from the Ulysses and ACE Solar Wind Ion Composition Experiments
(Kluwer Academic Publishers; Springer Science+Business Media, 2001-03)
The source region of solar wind plasma is observed to be directly reflected in the compositional pattern of both elemental and charge state compositions. Slow solar wind associated with streamers shows higher freeze-in ...
Bounds on Rotation Periods of Disrupted Binaries in the Full 2-Body Problem
(Kluwer Academic Publishers; Springer Science+Business Media, 2004-06)
Constraints on the final rotation rates of a Hill unstable binary in the full 2-body problem are derived and analyzed. Application of these constraints are made to the problem of a constant density body spun to disruption. ...
An Assessment of HOx Chemistry in the Tropical Pacific Boundary Layer: Comparison of Model Simulations with Observations Recorded during PEM Tropics A
(Kluwer Academic Publishers; Springer Science+Business Media, 2001-03)
Reported are the results from a comparison of OH,H 2 O 2 CH 3 OOH, and O 3 observationswithmodel predictions based on current HO x –CH 4 reaction mechanisms. The field observations are thoserecorded during the NASA GTE ...
Finite-dimensional piezoelectric transducer modeling for guided wave based structural health monitoring
(IOP Publishing Ltd, 2005-12-01)
Among the various schemes being considered for structural health monitoring (SHM), guided wave (GW) testing in particular has shown great promise. While GW testing using hand-held transducers for non-destructive evaluation ...
ACE Observations of the Bastille Day 2000 Interplanetary Disturbances
(Kluwer Academic Publishers; Springer Science+Business Media, 2001-12)
We present ACE observations for the six-day period encompassing the Bastille Day 2000 solar activity. A high level of transient activity at 1 AU, including ICME-driven shocks, magnetic clouds, shock-accelerated energetic ...