Now showing items 1-10 of 97
Use of linear feedback to control relaxation oscillations in a metal-passivation model
(IOP Publishing Ltd, 1996-11-01)
A method of linear feedback is shown to be applicable to the control or suppression of spontaneously occurring relaxation oscillations in a two-dimensional model for the passivation of a metal surface exposed to an aqueous ...
Grazing‐angle characterization of photosynthetic oxygen evolution protein monolayers
(The American Institute of Physics, 1996-09)
Variable‐period x‐ray standing wave (XSW) spectroscopy has been shown to be a practical probe for studying metalloproteins. The photosynthetic oxygen evolving complex (OEC) is a transmembrane multipolypeptide complex that ...
Porous silicon as a sacrificial material
(IOP Publishing Ltd, 1996-12-01)
Porous silicon is emerging in micromachining technology as an excellent material for use as a sacrificial layer. This is largely due to the ease of fabrication and freedom of design it allows. The rate of pore formation ...
A novel phase focusing mechanism in multipactor discharge
(The American Institute of Physics, 1996-05)
In spite of the mutual repulsion among the space charges, a new phase‐focusing mechanism is discovered whereby the leading edge of the multipactor discharge in an rf circuit grows at the expense of the trailing edge. This ...
In vivo 31 P MRS evaluation of ganciclovir toxicity in C6 gliomas stably expressing the herpes simplex thymidine kinase gene
(John Wiley & Sons, Ltd., 1996-12)
Phosphorus MRS was evaluated as a monitor of tumour therapeutic response to the herpes simplex virus thymidine kinase suicide gene therapy paradigm. In vivo 31 P spectra were obtained from subcutaneous rat C6 gliomas ...
Reduction of multi-photon ionization in dielectrics due to collisions
(Springer-Verlag, 1996-12)
The collisional effect due to the multi-photon ionization process in dielectric material has been studied. We found that the breakdown threshold of fused silica is the same for both linearly and circularly polarized light ...
Scalar imaging velocimetry measurements of the velocity gradient tensor field in turbulent flows. I. Assessment of errors
(The American Institute of Physics, 1996-07)
The concept of flow field velocimetry based on scalar imaging measurements [Phys. Fluids A 4, 2191 (1992)] is here formulated in terms of an integral minimization implementation, where the velocity field u(x,t) is found ...
Effects of non‐uniform charge injection on gain, threshold current, and linewidth enhancement factor for a 1.55 μm InP‐based multiple quantum well laser
(The American Institute of Physics, 1996-12-15)
In laser structures where the active region consists of several quantum wells, non‐uniform charge injection can occur. We examine the consequences of non‐uniform charge injection on gain, threshold current, and linewidth ...
LETTER TO THE EDITOR: Structure of the photodetachment cross section in a magnetic field: an experiment with
(IOP Publishing Ltd, 1996-12-28)
Photodetachment from in a magnetic field has been studied experimentally using light with energies between 14400 and . Presented here are high-resolution data which exhibit sharp magnetic field structure at thresholds and ...
A two‐dimensional molecular dynamics simulation of thin film growth by oblique deposition
(The American Institute of Physics, 1996-11-15)
Atomistic, molecular dynamics simulations are employed to investigate the relationship between film microstructure and deposition conditions (substrate temperature, deposition kinetic energy, and deposition angle). Increasing ...