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Displaying 16701 - 16725 of 73960

Linear Time Vertex Partitioning on Massive Graphs

March 7, 2016
Author(s)
Peter M. Mell, Richard Harang, Assane Gueye
The problem of optimally removing a set of vertices from a graph to minimize the size of the largest resultant component is known to be NP-complete. Prior work has provided near optimal heuristics with a high time complexity that function on up to hundreds

Secure Virtual Network Configuration for Virtual Machine (VM) Protection

March 7, 2016
Author(s)
Ramaswamy Chandramouli
Virtual Machines (VMs) are key resources to be protected since they are the compute engines hosting mission-critical applications. Since VMs are end-nodes of a virtual network, the configuration of the virtual network forms an important element in the

Mechanism of Spontaneous Blebbing Motion of Oil-Water Interface: Elastic Stress Generated by a Lamellar-Lamellar Transition

March 3, 2016
Author(s)
Yutaka Sumino, Norifumi L. Yamada, Michihiro Nagao, Takuya Honda, Hiroyuki Kitahata, Yuri B. Melnichenko, Hideki Seto
A mimic of biological blebbing motions constructed by a purely chemical system has been studied to understand nanometer scale structure and their roles in the spontaneous motion. Transition of surfactant lamellar phase was away rom the interface

Vulnerabilities of "McEliece in the World of Escher"

March 3, 2016
Author(s)
Dustin Moody, Ray A. Perlner
Recently, Gligoroski et al. proposed code-based encryption and signature schemes using list decoding, blockwise triangular private keys, and a nonuniform error pattern based on "generalized error sets." The general approach was referred to as "McEliece in

Clinical Implications of Technical Performance in Medical Genome Sequencing

March 2, 2016
Author(s)
Justin M. Zook, James Priest, Rachel Goldfeder, Megan Grove, Daryl Waggott, Matthew Wheeler, Euan Ashley, Marc L. Salit
As next-generation sequencing is becoming routinely applied to clinical care, the predictive characteristics and limitations of whole exome and whole genome sequencing need to be well-understood. The Genome in a Bottle Consortium has recently published a

Guidelines for the Registration of Two Coordinate Frames

March 2, 2016
Author(s)
Geraldine S. Cheok, Marek Franaszek
The purpose of registration is to obtain the transformation matrix between two coordinate frames. Typically, sensors record positional measurements in their own local coordinate frame. When positional data are acquired by two instruments or two datasets

Identification and Quantification of Seven Fused Aromatic Rings C26H14 Peri-Condensed Benzenoid Polycyclic Aromatic Hydrocarbons in a Complex Mixture of Polycyclic Aromatic Hydrocarbons from Coal Tar

March 2, 2016
Author(s)
Jorge O. Ona Ruales, Ruiz-Morales Yosadara, Stephen A. Wise
A methodology for the characterization of groups of PAHs using a combination of Normal Phase Liquid Chromatography with Ultraviolet-Visible Spectroscopy (NPLC/UV-vis) and Gas Chromatography with Mass Spectrometry (GC/MS) was used for the identification and

Spontaneous growth of GaN nanowire nuclei on N- and Al-polar AlN: A piezoresponse force microscopy study of crystallographic polarity

March 2, 2016
Author(s)
Matthew D. Brubaker, Alexana Roshko, Paul T. Blanchard, Todd E. Harvey, Norman A. Sanford, Kristine A. Bertness
The polarity of gallium nitride (GaN) nanowire nuclei grown on AlN layers was studied by piezoresponse force microscopy (PFM). N- or Al-polar AlN layers were grown by molecular beam epitaxy (MBE) on Si (111) substrates by use of Al- or N-rich growth

3D Segmentation of Stem Cells from Thousands of Confocal Microscopy Images

March 1, 2016
Author(s)
Peter Bajcsy, Mylene H. Simon, Stephen J. Florczyk, Carl G. Simon Jr., Derek Juba, Mary C. Brady
We address the problem of estimating 3D segmentation performance when segmentation is applied to thousands of confocal microscopy images (z-stacks) of cells. With a very large number of z-stacks, manual inputs to validate each segmentation result are

A New Experiment for Determining Evaporation and Condensation Coefficients of Cryogenic Propellants

March 1, 2016
Author(s)
Kishan Bellur, E F. Medici, M Kulshreshtha, V Konduru, D Tyrewala, A Tamilarasan, J McQuillen, Juscelino Leao, Daniel S. Hussey, David L. Jacobson, Julia Scherschligt, J Hermanson, C Choi, J Allen
Passive and active technologies have been used to control propellant boil-o , but the current state of understanding of cryogenic evaporation and condensation in microgravity is insucient for designing large cryogenic depots critical to the long-term

A Review and Survey of Metrology Outreach Efforts in Post-Secondary Education

March 1, 2016
Author(s)
Georgia L. Harris, Maria Isabel Pena
The paper presents a brief history and background of metrology outreach efforts to colleges and universities. It also includes a summary of a 2015 international educational survey used in part to assess colleges and universities that have measurement

Comparison of C-14 liquid scintillation counting at NIST and NRC Canada

March 1, 2016
Author(s)
Denis E. Bergeron, Raphael Galea, Lizbeth Laureano-Perez, Brian E. Zimmerman
An informal bilateral comparison of 14C liquid scintillation (LS) counting at the National Research Council of Canada (NRC) and the National Institute of Standards and Technology (NIST) has been completed. Two solutions, one containing 14C-labeled sodium

Cross-spectrum Measurement of Thermal-noise Limited Oscillators

March 1, 2016
Author(s)
Archita Hati, Craig W. Nelson, David A. Howe
Cross-spectrum analysis is a commonly-used technique for the detection of phase and amplitude noise of a signal in the presence of interfering noise. It extracts the desired correlated noise from two time series which also contain uncorrelated interfering

Developments in the Ni-Nb-Zr Amorphous Alloy Membranes

March 1, 2016
Author(s)
S. Sarker, D. Chandra, M. Hirscher, M. Dolan, D. Isheim, J. Wermer, D. Viano, M. Baricco, Terrence J. Udovic, D. Grant, O. Palumbo, A. Paolone, R. Cantelli
Most of the global H 2 production is derived from hydrocarbon-based fuels, and efficient H 2/CO 2 separation is necessary to deliver a high purity H 2 product. Hydrogen-selective alloy membranes are emerging as a viable alternative to traditional pressure

Economics of Community Disaster Resilience Workshop Proceedings

March 1, 2016
Author(s)
Bilal Ayyub, Robert E. Chapman, Gearald Galloway, Richard Wright
This report documents the effort launched by the National Institute of Standards and Technology (NIST) to develop, organize, and convene a workshop on the economics of community disaster resilience to promote the use of economics for system sustainment and
Displaying 16701 - 16725 of 73960
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