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Displaying 48851 - 48875 of 143775

On Feedback Functions of Maximum Length Nonlinear Feedback Shift Registers

August 2, 2010

Author(s)

Cagdas Calik, Meltem Sonmez Turan, Ferruh Ozbudak

Feedback shift registers are basic building blocks for many cryptographic primitives. Due to the insecurities of Linear Feedback Shift Register (LFSR) based systems, the use of Nonlinear Feedback Shift Registers (NFSRs) became more popular. In this work

On the Kantorovich Theorem and the Regularization of Total Variation Denoising Problems

August 2, 2010

Author(s)

Anthony J. Kearsley, Luis A. Melara

Total variation methods are an optimization-based approach for solving image restoration problems. The mathematical formulation results in an equality constrained optimization problem. A solution to this optimization problem can be obtained using Newton's

Production and Characterization of Polymer Microspheres Containing Trace Explosives Using Precision Particle Fabrication Technology

August 2, 2010

Author(s)

Matthew E. Staymates, Robert A. Fletcher, Jessica L. Staymates, John G. Gillen, Cory Berkland

Well characterized test materials are essential for validating the performance of current trace explosive detection systems. These test materials must replicate trace explosive contamination in the form of small particles with characteristic diameters in

Quantum electrical standards

August 2, 2010

Author(s)

Neil M. Zimmerman

The ampere and other electrical units defined by international agreement are presently established through challenging experiments. A redefinition of those units based on quantum laws would enable a simpler and more reliable realization.

Report of the 94th National Conference on Weights and Measures, July 12 - 16, 2009, San Antonio, Texas (SP1099)

August 2, 2010

Author(s)

Tina G. Butcher, Steven E. Cook, Linda D. Crown, Lisa Warfield

The 94th Annual Meeting of the National Conferenc eon Weights and Measures (NCWM) was held in San Antonio, Texas, July 12 throgh 16, 2009. The theme of the Conference was "Getting Involved, Making a Difference." The NCWM develops and recommends lasws and

Surface Energy/Chemistry Gradients for Block Copolymer Thin Film Studies

August 2, 2010

Author(s)

Julie N. Albert, Michael J. Baney, Christopher Stafford, Jennifer Y. Kelly, Thomas H. Epps

Development of self-assembling block copolymer materials for emerging nanotechnologies requires an understanding of how surface energy and chemistry affect thin film phase behavior. Gradient methods provide an effective route to explore the role of surface

The Role of Folding in the Degradation of Ballistic Fibers

August 2, 2010

Author(s)

Gale A. Holmes, Walter G. McDonough, Jae H. Kim, Derek L. Ho

Failures of certified soft body armor led to a call to understand the underlying mechanisms of the failure. Research has indicated that the folding of ballistic fibers comprising the soft body armor may be a factor in the performance deterioration that has

VISCOSITY MEASUREMENTS ON COLLOIDAL DISPERSIONS (NANOFLUIDS)FOR HEAT TRANSFER APPLICATIONS

August 2, 2010

Author(s)

Mark A. Kedzierski, David Venerus, Jacopo Buongiorno, Rebecca Christianson, Jessica Townsend, In Cheol Bang, Gang Chen, Sung Jae Chung, Minking Chyu, Haisheng Chen, Yulong Ding, F. Dubois, Grzegorz Dzido, Denis Funfschilling, Quentin Galand, Jinwei Gao, Haiping Hong, Mark Horton, Lin-wen Hu, Carlo Iorio, Andrzej Jarzebski, Yiran Jiang, Stephan Kabelac, Chongyoup Kim, Ji Hyun Kim, Sukwon Kim, Thomas McKrell, Rui Ni, John Philip, Naveen Prabhat, Pengxiang Song, Stefan Van Vaerenbergh, Dongsheng Wen, Sanjeeva Witharana, Xiao-Zheng Zhao, Sheng-Qi Zhou

This article reports viscosity data on a series of colloidal dispersions collected as part of the International Nanofluid Property Benchmark Exercise (INPBE). Data are reported for seven different fluids that include dispersions of metal-oxide

An Intra-Volume Ad Hoc Array Concept for Improved Public-Safety Communications

August 1, 2010

Author(s)

Christopher L. Holloway

Here we report on the testing and measurements of the ad hoc array concept in buildings. The overall concept is to use randomly located or placed wireless devices in a coordinated manner in order to increase the radio frequency signal at otherwise

Argon ion beam alters grain structure of copper in surface preparation for EBSD

August 1, 2010

Author(s)

Roy H. Geiss, David T. Read

In preparing specimens of thin films of copper for examination by electron backscatter diffraction (EBSD), surface preparation is often necessary to produce acceptable EBSD patterns. Typically, removal of a rough, damaged or oxidized layer of the surface

Catalyst-free GaN Nanowire Growth and Optoelectronic Characterization

August 1, 2010

Author(s)

Kristine A. Bertness, Norman A. Sanford, John B. Schlager

Characterizing Interphase Properties in Fiber Reinforced Polymer Composite with Advanced AFM Based Tools

August 1, 2010

Author(s)

Donna C. Hurley, Sandeep S. Nair, Siqun Wang, Seung H. Lee

Advanced atomic force microscopy techniques such as contact resonance force microscopy, noncontact mode phase imaging, and scanning thermal microscopy techniques have been used to characterize material properties in the interphase of fiber reinforced

Development of Rapidly Deployable Instrumentation Packages for Real Time Data Acquisition in Wildland-Urban Interface (WUI) Fires

August 1, 2010

Author(s)

Samuel L. Manzello, Seul-Hyun Park, Thomas G. Cleary

In an effort to quantify structure ignition mechanisms during WUI fires, rapidly deployable instrumentation packages are being developed. For a structure under a WUI fire attack, the packages are designed to: (1) provide temporally resolved images of

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