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Displaying 16251 - 16275 of 73697

Flame Retardant Emissions from Spray Polyurethane Foam Insulation

April 20, 2016
Author(s)
Dustin G. Poppendieck, Adam P. Blickley, Matthew Schlegel, Angelica Connor
The desire to build more energy efficient homes in the United States has led to the expansion of the residential spray polyurethane foam (SPF) insulation industry. Upon application of SPF, reacting chemicals form expanding polyurethane foam that fills

Geometric Decompositions of Bell Polytopes with Practical Applications

April 20, 2016
Author(s)
Peter L. Bierhorst
In the well-studied (2,2,2) Bell experiment consisting of two parties, two measurement settings per party, and two possible outcomes per setting, it is known that if the experiment obeys no- signaling constraints, then the set of admissible experimental

Gulf of Mexico Research Initiative 2014/2015 Hydrocarbon Intercalibration Experiment: Description and Results for SRM 2779 Gulf of Mexico Crude Oil and Candidate SRM 2777 Weathered Gulf of Mexico Crude Oil

April 20, 2016
Author(s)
Jacolin A. Murray, Lane C. Sander, Stephen A. Wise, Christopher M. Reddy
Following an open meeting entitled, “Hydrocarbon Chemistry QA/QC,” at the 2014 Gulf of Mexico Oil Spill and Ecosystem Science Conference in Mobile, Alabama, the Gulf of Mexico Research Initiative (GoMRI) initiated the Hydrocarbon Intercalibration

How to measure absolute P3HT crystallinity via 13C CPMAS NMR

April 20, 2016
Author(s)
Ryan C Nieuwendaal
We outline the details of acquiring quantitative 13C cross-polarization magic angle spinning (CPMAS) NMR spectra on the most ubiquitous polymer for organic electronics (OE) applications, poly(3-hexylthiophene) (P3HT), despite other groups’ claims that

How to measure absolute P3HT crystallinity via 13C CPMAS NMR

April 20, 2016
Author(s)

Ryan C. Nieuwendaal

We outline the details of acquiring quantitative 13C cross-polarization magic angle spinning (CPMAS) NMR spectra on the most ubiquitous polymer for organic electronics (OE) applications, poly(3-hexylthiophene) (P3HT), despite other groups’ claims that

OAGi/NIST Workshop on Open Cloud Architecture for Smart Manufacturing

April 20, 2016
Author(s)
Nenad Ivezic, Boonserm Kulvatunyou, Yan Lu, Yunsu Lee, Jaehun Lee, Albert W. Jones, Simon P. Frechette
This report summarizes the results from the OAGi/NIST Workshop on Open Cloud Architecture for Smart Manufacturing, which was held at the National Institute of Standards and Technology on May 5, 2015. The workshop was a forum for manufacturers and providers

Test Methods for the Evaluation of Manufacturing Mobile Manipulator Safety

April 20, 2016
Author(s)
Jeremy A. Marvel, Roger V. Bostelman
A test methodology for evaluating the safety of mobile manipulators (robot arms mounted on mobile bases) is presented. This methodology addresses the safety concerns relevant to modern, agile manufacturing practices in which mobile manipulators are

Exciton Dynamics in Monolayer Transition Metal Michalcogenides

April 19, 2016
Author(s)
Galan A. Moody, John Schaibley, Xiaodong Xu
Since the discovery of semiconducting monolayer transition metal dichalcogenides, a variety of experimental and theoretical studies have been carried out seeking to understand the intrinsic exciton population decay and valley relaxation dynamics. Reports

Formaldehyde Concentrations in a Net-Zero Energy House: Real-time Monitoring and Simulation

April 19, 2016
Author(s)
Dustin Poppendieck, Shahana S. Khurshid, William Stuart Dols, Lisa Ng, Brian Polidoro, Steven Emmerich
Measured real-time formaldehyde concentrations in a net-zero energy house were compared to simulated concentrations from a recently-developed, coupled building energy and airflow/indoor air quality model. Measured and simulated formaldehyde concentrations

Measuring Flame Retardant Emissions from Spray Polyurethane Foam in a Home

April 19, 2016
Author(s)
Dustin Poppendieck, Angelica Connor
The use of spray polyurethane foam (SPF) insulation in the United States is increasing. The primary flame retardant used in SPF, Tris (1-chloro-2-propyl) phosphate (TCPP), has been detected in micro-chamber emission experiments investigating SPF. However

Public Safety Analytics R&D Roadmap

April 19, 2016
Author(s)
Tracy A. McElvaney, Ryan Felts, Marc Leh
The public safety community is in a period of great transition. Over the next 20 years, technology advancements will increase accessibility of data/video applications to public safety, and allow for the eventual migration of voice communications from

Carbon Dioxide Generation Rates for Building Occupants

April 18, 2016
Author(s)
Andrew K. Persily, Lilian de Jonge
Indoor carbon dioxide (CO2) concentrations have been used for decades to characterize building ventilation and indoor air quality. Many of these applications require estimates of CO2 generation rates from the building occupants, which are currently based

Characterizing Uncertainty of a Formaldehyde Reference Standard

April 18, 2016
Author(s)
Dustin Poppendieck
High performance buildings need to be energy efficient and provide adequate ventilation for indoor air quality, which can be made easier with low emitting building materials. Based in part on these motivations, the United States Environmental Protection

Engineered metal nanoparticles in the sub-nanomolar levels kill cancer cells

April 18, 2016
Author(s)
Yasmine C. Daniels, William A. MacCrehan, Shinichiro Muramoto, Gheorghe NMN Stan, Vitaly Vodyanoy, Oleg Pustovyy
Zinc and copper metal nanoparticles were produced from bulk metal rods by an underwater high-voltage discharge method. The metal nanoparticles, with estimated diameters of 1 nm to 2 nm, were determined to be more than 85 % non-oxidized. Exposure of rat RG2

Low-template DNA: A single DNA analysis or two replicates?

April 18, 2016
Author(s)
Simone N. Gittelson, Carolyn R. Steffen, Michael D. Coble
This study investigates the following two questions: (i) Should the DNA analyst concentrate the DNA extract into a single amplification or should he/she split it up to do two replicates? (ii) Given the electropherogram obtained from a first analysis, is it

Structural control of mixed ionic and electronic transport in conducting polymers

April 17, 2016
Author(s)
Jonathan Rivnay, Sahika Inal, Brian Collins, Michelle Sessolo, Eleni Stavrindou, Christopher Tassone, Dean DeLongchamp, George Malliaras
Poly(3,4-ethylenedioxythiophene) doped with poly(styrenesulfonate), PEDOT:PSS, has been utilized for over two decades as a stable, solution-processable conductor. While electrical properties have been the subject of intense materials investigation, recent

Device-Level Jitter as a Probe of Ultrafast Traps in High-k MOSFETs

April 16, 2016
Author(s)
Dmitry Veksler, Jason Campbell, Kin Cheung, J. Zhong, H. Zhu, C. Zhao
A methodology for evaluation of ultra-fast interfacial traps, using jitter measurements as a probe, is developed. This methodology is applied to study the effect of PBTI stress on density of ultra-fast electron traps (with 500ps to 5ns characteristic

Bayesian Calibration of Transferable, Coarse-Grained Force Fields

April 15, 2016
Author(s)
Thomas W. Rosch, Frederick R. Phelan Jr., Paul Patrone
Generating and calibrating forces that are transferable across a range of state-points remains a challenging problem in coarse-grained (CG) molecular dynamics (MD). In this work, we present a Bayesian correction algorithm, inspired by ideas from
Displaying 16251 - 16275 of 73697
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