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Displaying 5451 - 5475 of 74364

Fire Hazards of Dry Versus Watered Christmas Trees

December 15, 2020
Author(s)
Matthew S. Hoehler, Matthew F. Bundy, Laurean A. DeLauter, Robin L. Materese, Leon Gerskovic, Jose R. Garcia
These experiments were designed to examine the difference in fire hazard between a dry Christmas tree and a watered Christmas tree for fire safety awareness. One dry tree (no water after harvesting) and one watered tree was tested with no replicates. The

Preliminary Data Collected from the Camp Fire Reconnaissance

December 15, 2020
Author(s)
Alexander Maranghides, William Mell, Steven Hawks, Mike Wilson, Will Brewer, Eric D. Link, Christopher U. Brown, Cartier P. Murrill, Erin Ashley
The Camp Fire started in the vicinity of Pulga Rd and Camp Creek Road, in Butte County on November 8 at 6:29 am. The cause of ignition is under investigation. The incident was classified as a vegetation fire. The Unified Command Agencies responsible for

Reappraising the appropriate use of a common meteorological quantity: Potential Temperature

December 15, 2020
Author(s)
Manuel Baumgartner, Ralf Weigel, Ulrich Achatz, Allan H. Harvey, Peter Spichtinger
The potential temperature is a widely used quantity in atmospheric science since it is conserved for air's adiabatic changes of state. Its definition involves the specific heat capacity of dry air, which is traditionally assumed as constant. However, the

Spatially graded porous transport layers for gas evolving electrochemical energy conversion: High performance polymer electrolyte membrane electrolyzers

December 15, 2020
Author(s)
Jason K. Lee, ChungHyuk Lee, Kieran F. Fahy, Pascal J. Kim, Jacob LaManna, Eli Baltic, Daniel S. Hussey, David L. Jacobson, A Gago, S Kolb, K Friedrich, Aimy Bazylak
Decarbonizing society's energy infrastructure is foundational for a sustainable future and can be realized by harnessing renewable energy for clean hydrogen and on-demand power with fuel cells. Here, we elucidate how graded porous transport layers (PTLs)

Study of Multicast Broadcast Single Frequency Network Area in Multicast Communication

December 15, 2020
Author(s)
Chen Shen, Chunmei Liu, Richard A. Rouil, Hyeong Ah-Choi
Multicast was introduced in Long-Term Evolution (LTE) in release 8 as the technology of the Evolved Multimedia Broadcast Multicast Services (eMBMS) and has been steadily updated in the later releases. Its prominent advantage in full resource access of each

VDAC Gating Thermodynamics, but Not Gating Kinetics, Are Virtually Temperature Independent

December 15, 2020
Author(s)
Maria Queralt-Martin, David Hoogerheide, Sergei Y. Noskov, Alexander M. Berezhkovskii, Tatiana Rostovtseva, Sergey Bezrukov
The voltage-dependent anion channel, VDAC, is the most abundant protein in the mitochondrial outer membrane and an archetypical β-barrel channel. Here, we study the effects of temperature on VDAC channels reconstituted in planar lipid membranes at the

Competing Antiferromagnetic-Ferromagnetic States in d 7 Kitaev Honeycomb Magnet

December 14, 2020
Author(s)
Hector Vivanco, Benjamin Trump, Craig Brown, Tyrel M. McQueen
The Kitaev model is a rare example of an analytically solvable and physically instantiable Hamiltonian yielding a topological quantum spin liquid ground state. Here we report signatures of Kitaev spin liquid physics in the honeycomb magnet Li 3Co 2SbO 6

Correction of the Measured Phase of the Radiation Pattern of Millimeter-Wave Antennas

December 14, 2020
Author(s)
Antonius van den Biggelaar, Ben Jamroz, Dylan Williams, A. B. Smolders, U. Johannsen
The results of a radiation pattern measurement of a WR-28 open-ended waveguide (OEWG) are shown. At higher frequencies, the wavelength becomes shorter, making phase measurements very sensitive to positioning and alignment errors. The lack of symmetry in

Site-Specific Structure at Multiple Length Scales in Kagome Quantum Spin Liquid Candidates

December 14, 2020
Author(s)
Rebecca W. Smaha, Idris Boukahil, Charles J. Titus, Jack Mingde Jiang, John P. Sheckelton, Wei He, JiaJia Wen, John Vinson, SuYin G. Wang, Yu-Sheng Chen, Simon J. Teat, Thomas P. Devereaux, Chaitanya D. Pemmaraju, Young S. Lee
Realizing a quantum spin liquid (QSL) ground state in a real material is a leading issue in condensed matter physics research. In this pursuit, it is crucial to fully characterize the structure and influence of defects, as these can significantly affect

Wafer-Level Fabrication of Alkali Vapor Cells Using In-Situ Atomic Deposition

December 14, 2020
Author(s)
Douglas Bopp, Vincent N. Maurice, John Kitching
We demonstrate a new technique for filling microfabricated silicon and glass cavities with alkali vapors at the wafer-scale. A single etched silicon wafer contains an array of cavities containing alkali precursor materials offset laterally from the cell

Approximating the two-mode two-photon Rabi model

December 13, 2020
Author(s)
Victor Albert, David H. Wu
The Rabi model describes the simplest nontrivial interaction between a few-level system and a bosonic mode, featuring in multiple seemingly unrelated systems of importance to quantum science and technology. While exact expressions for the energies of this

Control Baselines for Information Systems and Organizations

December 11, 2020
Author(s)
Ronald S. Ross, Victoria Y. Pillitteri
This publication provides security and privacy control baselines for the Federal Government. There are three security control baselines (one for each system impact level: low-impact, moderate- impact, and high-impact), as well as a privacy baseline that is

Designing 3D printable cementitious materials with gel-forming polymers

December 11, 2020
Author(s)
Edward Garboczi, Hajar Taheri Afarani, William carroll, Joseph J. Biernacki
Cement based pastes for 3D printing applications were prepared using hydrogel-forming polymers. Preliminary results suggest that such gel-forming polymers can reduce the need for more complex admixture packages as printing aids. The influence of polymer

Full-Scale Experiments to Demonstrate Flammability Risk of Residential Upholstered Furniture and Mitigation Using Barrier Fabric

December 11, 2020
Author(s)
Mauro Zammarano, Matthew S. Hoehler, John R. Shields, Andre L. Thompson, Ickchan Kim, Isaac T. Leventon, Matthew F. Bundy
In this work, we investigated fire growth in a furnished compartment intended to mimic a living room where a couch was the main fuel load. Three TB-117-2013 compliant and commercially available couches were procured. The couches were identical except for

Object Measurements from 2D Microscopy Images

December 11, 2020
Author(s)
Peter Bajcsy, Joe Chalfoun, Mylene Simon, Mary C. Brady, Marcin Kociolek
This chapter addresses object measurements from 2D microscopy images. Object measurements (called image features) vary in terms of theoretical formulas for the same image feature, the physical units used to represent pixel-based measurements, the

Technical Language Processing: Unlocking Maintenance Knowledge

December 11, 2020
Author(s)
Michael P. Brundage, Thurston B. Sexton, Melinda Hodkiewicz, Alden A. Dima, Sarah Lukens
Out-of-the-box natural-language processing (NLP) pipelines need re-imagining to understand and meet the requirements of the engineering sector. Text-based documents account for a significant portion of data collected during the life cycle of asset

Towards Computing Resource Reservation Scheduling in Industrial Internet of Things

December 11, 2020
Author(s)
Fan Liang, Wei Yu, Xing Liu, David W. Griffith, Nada T. Golmie
The Industrial Internet of Things (IIoT) is a critically important implementation of the Internet of Things (IoT), connecting IoT devices ubiquitously in an industrial environment. Based on the interconnection of IoT devices, IIoT applications can collect

Unraveling the compositional heterogeneity and carrier dynamics of alkali cation doped 3D/2D perovskites with improved stability

December 11, 2020
Author(s)
Ming Chun Tang, Siyuan Zhang, Nhan V. Nguyen, Edwin J. Heilweil, Christina A. Hacker, Timothy J. Magnanelli, Thomas D. Anthopoulos
Preventing the degradation of hybrid perovskite by humid air remains a challenge for their future commercial utilization. 3D/2D perovskites with hierarchical architecture have attracted significant attention due to their promising power conversion
Displaying 5451 - 5475 of 74364