Now showing items 31-40 of 1284
High-efficiency organic polymer light-emitting heterostructure devices on flexible plastic substrates
(The American Institute of Physics, 2000-02-07)
In this letter, we describe a high-efficiency organic polymer light-emitting heterostructure device with aluminum cathode fabricated on a thin, flexible plastic substrate. The device consists of a hole transporting ...
Metal piezoelectric semiconductor field effect transistors for piezoelectric strain sensors
(The American Institute of Physics, 2004-08-16)
In this letter, we examine the potential of a functional device that can have good transistor and stress sensor properties. The device examined is based on the use of a thin oxide with high piezoelectric coefficients under ...
Surfactant spreading on thin viscous films: film thickness evolution and periodic wall stretch
(Springer-Verlag, 2003-01)
Surfactant spreading on thin viscous films is of interest in the context of surfactant and liquid transport in the lungs, for both normal lung function and treatment of disease, as well as for many industrial processes. ...
Adaptation through minimization of the phase lag in coupled nonidentical systems
(The American Institute of Physics, 2004-09)
We show that the internal control of adaptation can be obtained from the properties of the phase lag that results from phase synchronization of two nonidentical chaotic oscillators. The direction and magnitude of the phase ...
Effects of pulse-length and emitter area on virtual cathode formation in electron guns
(The American Institute of Physics, 2002-05)
Recent experiments at the University of Maryland using photoemission from a dispenser cathode have yielded some interesting results regarding the effects of the area of emission and of the ratio between the pulse length ...
Mechanisms for current-induced conductivity changes in a conducting polymer
(The American Institute of Physics, 2006-10-02)
A layer of polyethylene dioxythiophene:polystyrene sulfonic acid (PEDT:PSS) spun onto the surface of an inorganic semiconductor forms a highly asymmetric rectifying junction when a small current is applied and can be ...
Sources, injection and acceleration of heliospheric ion populations
(The American Institute of Physics, 2000-09-15)
A variety of heliospheric ion populations—from Anomalous Cosmic Rays (ACRs) to particles accelerated in Corotating Interaction Regions (CIRs)—have been observed and studied for several decades. It had been commonly assumed ...
Fast wave propagation in auditory cortex of an awake cat using a chronic microelectrode arrayThe work was performed at Department of Bioengineering, Arizona State University, ECG 334 MS-9709 Arizona State University, Tempe, AZ 85287-9709, USA.
(IOP Publishing Ltd, 2007-06-01)
We investigated fast wave propagation in auditory cortex of an alert cat using a chronically implanted microelectrode array. A custom, real-time imaging template exhibited wave dynamics within the 33-microwire array (3 ...
Evolution and impingement of an automotive fuel spray investigated with simultaneous Mie/LIF techniques
(Springer-Verlag, 2001-07)
The spatial and temporal evolution of an automotive hollow-cone-type spray was investigated with laser-based imaging diagnostics. Optical conditions of an IC engine were emulated with a test cell that was built from an ...