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Displaying 22751 - 22775 of 73741

Arithmetic Progressions on Huff Curves

July 23, 2012
Author(s)
Dustin Moody
We look at arithmetic progressions on elliptic curves known as Huff curves. By an arithmetic progression on an elliptic curve, we mean that either the x or y-coordinates of a sequence of rational points on the curve form an arithmetic progression. Previous

Magnetic Particle Imagining with a Cantilever Detector

July 23, 2012
Author(s)
Jacob W. Alldredge, John M. Moreland
We present a novel imaging method for the measuring the position and magnetic moment of single micrometer scale particles. Our technique is based on magnetic force microscopy (MFM) with a magnetically hard magnetic tip in a uniform opposing field. By

Small-Angle Neutron Scattering Study of Protein Crowding in Liquid and Solid Phases: Lysozyme in Aqueous Solution, Frozen Solution, and Carbohydrate Powders

July 23, 2012
Author(s)
Joseph E. Curtis, Hirsh Nanda, Sheila Khodadadi, Marcus T. Cicerone, Hyo Jin Lee, Arnold McAuley, Susan Krueger
The structure, interactions and inter-protein configurations of the protein lysozyme were studied in a variety of phases that are biotechnologically relevant for proteins using small-angle neutron scattering (SANS) and Monte Carlo simulations. These

An algorithm for finding clusters with a known distribution and its application to photon-number resolution using a superconducting transition-edge sensor

July 20, 2012
Author(s)
Zachary H. Levine, Thomas Gerrits, Alan L. Migdall, Daniel V. Samarov, Brice R. Calkins, Adriana E. Lita, Sae Woo Nam
Improving photon-number resolution of single-photon sensitive detectors is important for many applications, as is extending the range of such detectors. Here we seek improved resolution for a particular Superconducting Transition-Edge Sensor (TES) through

Evolutionary Construction of de Bruijn Sequences

July 20, 2012
Author(s)
Meltem Sonmez Turan
A binary de Bruijn sequence of order n is a cyclic sequence of period 2^n, in which each n-bit pattern appears exactly once. These sequences are commonly used in applications such as stream cipher design, pseudo-random number generation, 3-D pattern

Functionalized Nanoparticle Release and Distribution in PEG Hydrogel Delivery Systems

July 18, 2012
Author(s)
Stephanie L. Hume, Jenifer L. Blacklock, Kavita M. Jeerage
Nanoparticles have emerged as a promising therapeutic tool due to their unique physicochemical properties and tunable biological interactions. Delivery of therapeutic nanoparticles can be enhanced locally through standard drug-delivery platforms, such as

A Microelectromechanically Controlled Cavity Optomechanical Sensing System

July 17, 2012
Author(s)
Houxun H. Miao, Kartik A. Srinivasan, Vladimir A. Aksyuk
Microelectromechanical systems (MEMS) have been applied to many measurement problems in physics, chemistry, biology and medicine. In parallel, cavity optomechanical systems have achieved quantum-limited displacement sensitivity and ground state cooling of

Absorption and Reflection of Infrared Radiation by Polymers in Fire-Like Environments

July 17, 2012
Author(s)
Gregory T. Linteris, Mauro Zammarano, Boris Wilthan, Leonard M. Hanssen
In large-scale fires, the input of energy to burning materials occurs predominantly by radiative transfer. The in-depth absorption of radiant energy by a polymer influences its ignition time and burning rate. The present investigation examines two methods

Chemical and Thermophysical Characterization of 1,3,5-triisopropylcyclohexane

July 17, 2012
Author(s)
Thomas J. Bruno, Tara J. Fortin, Tara M. Lovestead, Jason A. Widegren
The complex nature of finished fuels makes definitive studies on composition and combustion properties very difficult and uncertain. This has led to the adoption of fuel surrogate mixtures in such studies. The development of a surrogate mixture is itself a

Advancing the State of Urban Search and Rescue Robotics through the RoboCupRescue Robot League Competition

July 16, 2012
Author(s)
Raymond K. Sheh, Adam S. Jacoff, Ann M. Virts, Tetsuya Kimura, Johannes Pellenz, Soren Schwertfeger, Jackrit Suthakorn
The RoboCupRescue Robot League is an international competition that has grown to be an effective driver for the dissemination of solutions to the challenges posed by Urban Search and Rescue Robotics and accelerated the development of the performance

What's Special About Cloud Security?

July 16, 2012
Author(s)
Peter M. Mell
While cloud security concerns have consistently ranked as one of the top challenges to cloud adoption, it is not clear what security issues are special with respect to cloud computing. To approach this question, we attempt to derive cloud security issues
Displaying 22751 - 22775 of 73741
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