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Displaying 49301 - 49325 of 143775

Adiabatic Preparation of Many-Body States in Optical Lattices

June 22, 2010
Author(s)
James V. Porto, Anders Sorensen, Ehud Altman, Michael Gullans, Mikhail Lukin, Eugene Demler
We analyze a technique for the preparation of low entropy many-body states of atoms in optical lattices based on adiabatic passage. In particular, we show that this method allows preparation of strongly correlated states as stable highest energy states of

Mechanisms and Measurement of Nanomaterial-Induced Oxidative Damage to DNA

June 22, 2010
Author(s)
Bryant C. Nelson, Elijah J. Petersen
Many of the current investigations on the environmental health and human safety risks of engineered nanomaterials focus on their short-term acute effects. However, the long-term chronic effects of nanomaterials on living systems, and in particular, on the

Piezoelectric Shaker Development for High Frequency Calibration of Accelerometers

June 22, 2010
Author(s)
Beverly F. Payne, Gregory W. Vogl, Kari K. Harper
Calibration of vibration transducers requires sinusoidal motion over a wide frequency range with low distortion and low cross-axial motion. Piezoelectric shakers are well suited to generate such motion and are suitable for use with laser interferometric

Quantum Dot FRET Sensor for Enzymatic Activity in Microfluidic Device

June 22, 2010
Author(s)
Georgeta Crivat, Sandra M. Da Silva, Darwin Reyes-Hernandez, Samuel Forry, Laurie E. Locascio, Michael Gaitan, Nitsa Rosenzweig, Zeev Rosenzweig
This paper describes the development of new fluorescence resonance energy transfer (FRET)-based quantum dot probes for proteolytic activity. The CdSe/ZnS quantum dots are incorporated into a thin polymeric film, which is prepared by layer-by-layer

AN ADHESION TEST METHOD FOR SPRAY-APPLIED FIRE-RESISTIVE MATERIALS

June 21, 2010
Author(s)
Kar T. Tan, Christopher C. White, Donald L. Hunston
Adhesion of spray-applied fire-resistive materials (SFRMs) to steel structures is critical in enabling the capacity of a building to remain functional for a specific length of time during a fire for life safety and fire department assess. Empirical tests

Bit Error Rate Measurements in Reverberation Chambers using a VSA

June 21, 2010
Author(s)
Catherine A. Remley, Sander Floris, Christopher L. Holloway
We discuss practical measurement implementation issues regarding the use of a vector signal analyzer for making bit-error-rate measurements in reverberation chambers. These issues include synchronizing the transmitted and received signals in spite of time

Reverberation-Chamber Test Environment for Outdoor Urban Wireless Propagation Studies

June 21, 2010
Author(s)
Helge Fielitz, Kate Remley, Christopher L. Holloway, Qian Zhang, Qiong Wu, David W. Matolak
We introduce a test environment to replicate the well-known clustering of reflections in power delay profiles from urban wireless propagation environments that exhibit late-time delays and reflections. The test set-up combines discrete reflections
Displaying 49301 - 49325 of 143775
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