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NIST Authors in Bold

Displaying 13276 - 13300 of 74256

Using realistic factors to simulate catastrophic congestion events in a network

November 1, 2017
Author(s)
Kevin L. Mills, Christopher E. Dabrowski
With the rapid growth of the Internet, there has been increased interest in the use of computer models to study the dynamics of communication networks in the research literature. An important example of this has been the study of dramatic, but relatively

Improving Software Assurance through Static Analysis Tool Expositions

October 31, 2017
Author(s)
Terry S. Cohen, Damien J. Cupif, Aurelien M. Delaitre, Charles Daniel De Oliveira, Elizabeth N. Fong, Vadim Okun
Multiple techniques and tools prove effective for software assurance. One technique that has grown in acceptance since the early 2000s is static analysis, which examines software for weaknesses without executing it. The National Institute of Standards and

SARD: Thousands of Reference Programs for Software Assurance

October 31, 2017
Author(s)
Paul E. Black
A corpus of computer programs with known bugs is useful in determining the ability of tools to find bugs. This article describes the content of NIST's Software Assurance Reference Dataset (SARD), which is a publicly available collection of thousands of

Buckling Instabilities in Polymer Brush Surfaces via Postpolymerization Modification

October 30, 2017
Author(s)
Wei Guo, Cassandra M. Reese, Li Xiong, Phillip K. Logan, Brittany J. Thompson, Christopher Stafford, Anton Ievlev, Bradley S. Lokitz, Olga S. Ovchinnikova, Derek L. Patton
We report a simple route to engineer ultrathin polymer brush surfaces with wrinkled and creased morphologies using postpolymerization modification (PPM), where the length scale of the buckled features can be tuned using PPM reaction time and sequence. We

Interoperability Test for IEC 61850-9-2 Standard-based Merging Units

October 30, 2017
Author(s)
Yuyin Song, Gerald J. FitzPatrick, Kang B. Lee, Yixin Zhang
Merging units (MUs) sample alternating current (AC) in one or multiple phases and convert these analog voltage and current signals to digital values and transmit the sampled values (SVs) to protection relays (PRs) and bay controllers (BCs) through either

Local field effect on charge-capture/emission dynamics

October 30, 2017
Author(s)
Kin P. Cheung, Dmitry Veksler, Jason P. Campbell
Charge-capture/emission is ubiquitous in solid state devices. Its dynamics often play critical roles in device operation and reliability. Treatment of this basic process is found in many text books and is considered well understood. As in many solid state

Phase Competition in the Palmer-Chalker XY Pyrochlore Er 2 Pt 2 O 7

October 30, 2017
Author(s)
A. M. Hallas, J. Gaudet, Nicholas Butch, Guangyong Xu, M. Tachibana, C. R. Wiebe, Graeme M. Luke, Bruce D. Gaulin
We report neutron scattering measurements on Er 2Pt 2O 7, a new addition to the XY family of frustrated pyrochlore magnets. Symmetry analysis of our elastic scattering data shows that Er 2Pt 2Od7^ is the first XY pyrochlore to order into the κ = 0,Γ 7

Strength of Brittle Materials in Moderately Corrosive Environments

October 30, 2017
Author(s)
Robert F. Cook
The strengths of four brittle materials―cordierite glass ceramic, fused silica, silicon, and polycrystalline alumina were measured after exposure to weakly-corrosive water and moderately- corrosive buffered HF (BHF) solution. Exposure to water did not

Propagation of orientation uncertainty of 3D rigid object to its points

October 28, 2017
Author(s)
Marek Franaszek, Geraldine Cheok
If a CAD model of a rigid object is available, the location of any point on an object can be derived from the measured 6DOF pose of the object. However, the uncertainty of the measured pose propagates to the uncertainty of the point in an anisotropic way

Genome Replication in Thermococcus kodakarensis Independent of Cdc6 and an Origin of Replication

October 27, 2017
Author(s)
Alexandra Gehring, David Astling, Rie Matsumi, Brett Burkhart, Zvi Kelman, John Reeve, Kenneth Jones, Thomas J. Santangelo
The initiation of DNA replication is typically tightly regulated by proteins that form initiation complexes at specific sequences known as replication origins. In Archaea and Eukaryotes, Cdc6, a near-universally conserved protein binds and facilitates the

The odd-even invariant and Hamiltonian circuits in tope graphs

October 27, 2017
Author(s)
Yvonne Kemper, James F. Lawrence
Questions of the existence of Hamiltonian circuits in the tope graphs of central arrangements of hyperplanes are considered. Connections between the existence of Hamiltonian circuits in the arrangement and the odd-even invariant of the arrangement are

Strategies and Considerations for the Trace Detection of Fentalogs

October 26, 2017
Author(s)
Edward Sisco
Fentanyl and fentanyl analogs pose a significant and ever changing threat in the United States as both pure compounds and in complex mixtures. While commonly considered detection techniques require visible amounts of powder (i.e. color tests or GC/MS

NIST Guidance on Application Container Security

October 25, 2017
Author(s)
Ramaswamy Chandramouli, Murugiah Souppaya, Karen Scarfone
This bulletin summarizes the information found in NIST SP 800-190, Application Container Security Guide and NISTIR 8176, Security Assurance Requirements for Linux Application Container Deployments. The bulletin offers an overview of application container

Studying Water and Solute Transport through Desalination Membranes via Neutron Radiography

October 25, 2017
Author(s)
Devin L. Shaffer, Jacob M. LaManna, David L. Jacobson, Daniel S. Hussey, Menachem Elimelech, Edwin P. Chan
Neutron radiography, a non-destructive imaging technique, is applied to study water and solute transport through desalination membranes. Specifically, we use neutron radiography to quantify lithium chloride draw solute concentrations across a thin-film

Perspectives for a new realization of the pascal by optical methods

October 24, 2017
Author(s)
Jay H. Hendricks, Karl Jousten, Jack A. Stone Jr., Patrick F. Egan, Tom Rubin, Christof Gaiser, Rene Schodel, James A. Fedchak, Jacob E. Ricker, Jens Fluegge, Stephen P. Eckel, Julia K. Scherschligt, Daniel S. Barker, Kevin O. Douglass, Gregory F. Strouse, Uwe Sterr, Waldimir Sabuga
Since the beginning of measurement of pressure in the 17th century, the unit of pressure has been defined by the relationship of force per unit area. The present state of optical technology now offers the possibility of using a thermodynamic definition

Process Document for the NIST List of Certified Devices

October 24, 2017
Author(s)
Jason D. Kahn
The Middle Class Tax Relief and Job Creation Act of 2012 defined responsibilities for the National Institute of Standards and Technology (NIST) in regards to the Nationwide Public Safety Broadband Network (NPSBN) and FirstNet (FN). AT&T was awarded to be a

Towards Probabilistic Identification of Zero-day Attack Paths

October 24, 2017
Author(s)
Xiaoyan Sun, Dai Jun, Peng Liu, Anoop Singhal, John Yen
Zero-day attacks continue to challenge the enterprise network security defense. A zero-day attack path is formed when a multi- step attack contains one or more zero-day exploits. Detecting zero-day attack paths in time could enable early disclosure of zero
Displaying 13276 - 13300 of 74256
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