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Displaying 11726 - 11750 of 73896

Conflict-driven Hybrid Observer-based Anomaly Detection

June 25, 2018
Author(s)
Dhananjay Anand, Zheng Wang, Dawn Tilbury, James Moyne, CheeYee Tang
This paper presents an anomaly detection method using a hybrid observer – comprised of state observers for both discrete and continuous states. We focus our attention on anomalies caused by intelligent attacks that use knowledge of the system behavior to

Cost Estimates for the Seismic Retrofit of Federally Owned and Leased Buildings

June 25, 2018
Author(s)
Juan F. Fung, David T. Butry, Siamak Sattar, Steven L. McCabe
Presidential Executive Order 13717, Establishing a Federal Earthquake Risk Management Standard, encourages federal agencies to “enhance resilience…[to] future earthquakes” by evaluating and retrofitting existing federal buildings based on current existing

Flexural Compression Capacity of Thin Reinforced Concrete Structural Walls

June 25, 2018
Author(s)
Christopher L. Segura, Carlos Arteta, John Wallace
Stability of slender reinforced concrete walls has become an issue of interest for researchers since observations of their performance in recent earthquakes indicated that code compliant walls may be vulnerable to brittle compression failure and rebar

Influence of Fire on the Seismic Shear Capacity of Cold-Formed Steel Shear Walls

June 25, 2018
Author(s)
Blanca Andres Valiente, Matthew Hoehler
Lightweight construction using cold-formed steel (CFS) stud represent roughly 20 % of the multi-story nonresidential building market in the United States. During an earthquake, these buildings rely on the performance of their lateral force-resisting system

J. Chem. Phys. 148, 244302 (2018); https://doi.org/10.1063/1.5029929148, 244302(C) 2018 Author(s).Fourier-transform-spectroscopicphotoabsorption cross sections andoscillator strengths for theS2 B 3..u..X 3..g system

June 25, 2018
Author(s)
G. Stark, H. Herde, J. R. Lyons, A. N. Heays, N. Oliveira, Gillian Nave, B. R. Lewis, S. T. Gibson
Photoabsorption cross sections and oscillator strengths for the strong, predissociating vibrational bands, v  11, in the S2 B 3..u .. X 3..g (v; 0) system are reported. Absorption measurements were undertaken of S2 vapor in a radio-frequency discharge

Proton and Ammonia Intercalation into Layered Iron Chalcogenides

June 25, 2018
Author(s)
Xiuquan Zhou, Brandon Wilfong, Sz-Chian Liou, Halyna Hodovanets, Craig Brown, Efrain E. Rodriguez
Structurally related to the iron-based superconductors, two new intercalated iron chalcogenides (H 0.5NH 3)Fe 2Ch 2 where Ch = S, Se have been prepared. By topochemical conversion, the protons were exchanged by lithium to form (Li 0.5NH 3)Fe 2Ch 2

The Relation of Local Order to Material Properties in Relaxor Ferroelectrics

June 25, 2018
Author(s)
Matthew Krogstad, Peter M. Gehring, Stephan Rosenkranz, Raymond Osborn, Feng Ye, Yaohua Liu, Jacob P. C. Ruff, Wenzhi Chen, Justin M. Wozniak, Haosu Luo, O. Chmaissem, Zuo-Guang Ye, Daniel Phelan
Four different forms of local order that give rise to diffuse neutron and x-ray scattering in the relaxor ferroelectric series PMN-xPT are identified via broad, three-dimensional surveys of reciprocal space. Composition and temperature-dependent

Using FEMA P695 to Interpret ASCE 41 Seismic Performance of Special Moment Frames

June 25, 2018
Author(s)
Matthew S. Speicher, Jazalyn D. Dukes, Kevin K. Wong
ASCE 41 contains methodologies used by practicing engineers for the assessment of existing buildings and the design of new buildings. The National Institute of Standards and Technology recently completed a study investigating the relationship between ASCE

Machining behavior of additively manufactured and cast-wrought nickel-based super alloy (IN625)

June 22, 2018
Author(s)
Rajesh K. Ananda-Kumar, Wilfredo Moscoso-Kingsley, Gregor Jacob, Alkan Donmez, Viswanathan Madhavan
Additively manufactured (AM) and cast-wrought (CW) nickel-based super alloy (IN 625) with known processing history and quasi-static properties have been investigated for their relative machinability, in terms of tool temperature and wear, as well as force

REFERENCE VALUES AND REFERENCE CORRELATIONS FOR THE THERMAL CONDUCTIVITY AND VISCOSITY OF FLUIDS

June 22, 2018
Author(s)
Marc J. Assael, A.E. Kalyva, S.A. Monogenidou, Marcia L. Huber, Richard A. Perkins, Daniel G. Friend, Eric F. May
In this paper reference values and reference correlations for the thermal conductivity and viscosity of pure fluids are presented. Reference values and correlations for the thermal conductivity and the viscosity of pure fluids provide thoroughly evaluated

THE INTERDEPENDENT NETWORKED COMMUNITY RESILIENCE MODELING ENVIRONMENT (IN-CORE)

June 22, 2018
Author(s)
Paolo Gardoni, John W. van de Lindt, Bruce Ellingwood, Therese P. McAllister, Jong Lee, Harvey Cutler, Daniel Cox
The National Institute of Standards and Technology (NIST) funded the multi-university five-year Center of Excellence for Risk-Based Community Resilience Planning (CoE), headquartered at Colorado State University, to develop the measurement science to

Determination of polycyclic aromatic hydrocarbons with molecular mass 302 in standard reference material 1597a by reversed-phase liquid chromatography and stop-flow fluorescence detection

June 21, 2018
Author(s)
Hugh Hayes, Walter Wilson, Lane Sander, Stephen Wise, Andres Campiglia
The identification of isomeric polycyclic aromatic hydrocarbons (PAHs) in complex samples via reversed-phase liquid chromatography (RPLC) with fluorescence detection (FL) is normally based on matching the chromatographic retention times of suspected peaks

Dosimetric characterization of a new directional low-dose rate brachytherapy source

June 21, 2018
Author(s)
Michael G. Mitch, Larry A. DeWerd, Manik Aima, Clifford G. Hammer, Wesley S. Culberson
CivaTech Oncology Inc. (Durham, NC) has developed a novel low-dose rate (LDR) brachytherapy source called the CivaSheet. The source is a planar array of discrete elements (“CivaDots") which are directional in nature. This work investigates the

Evidence for cortisol-cortisone metabolism by marine mammal blubber

June 21, 2018
Author(s)
Thomas M. Galligan, Lori Schwacke, Wayne E. McFee, Ashley Russell
Blubber, a specialized form of adipose tissue in marine mammals, has been identified as a useful matrix for the assessment of steroid hormone homeostasis in cetaceans. However, blubber cortisol measurements are not quantitatively predictive of circulating
Displaying 11726 - 11750 of 73896
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