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Displaying 1876 - 1900 of 1947

Structure Vulnerability to Firebrands from Fences and Mulch

July 23, 2020
Author(s)
Kathryn M. Butler, Erik L. Johnsson, Wei Tang
Fences and mulch contribute to the spread of WUI fires. They act as both ignition targets and as sources that may themselves ignite nearby objects through direct flame contact and firebrand generation. The linear nature of fences gives them the capability

Assessing the Predictive Capability for Real-Scale Residential Upholstered Furniture Mock-Up Fires using Cone Calorimeter Measurements. Part 1: Real-Scale Experiments

February 10, 2020
Author(s)
William M. Pitts, Martin Werrel, Marco G. Fernandez, Mary A. Long, Evan A. Eisenberg, James J. Filliben, Cory D. Runyon
This is the first of three reports describing a study designed to assess the feasibility of utilizing small-scale measurements in a cone calorimeter as inputs for predicting the burning behavior of real-scale residential upholstered furniture (RUF). Here

Assessing Fire-blocking Effectiveness of Barrier Fabrics in the Cone Calorimeter

April 29, 2019
Author(s)
Shonali Nazare, William M. Pitts, Mauro Zammarano, John R. Shields, Elizabeth Knowlton, Benito De Leon
Cone calorimetric experiments have been conducted on bare flexible polyurethane foam (FPUF) samples as well as FPUF covered with a variety of fire-blocking barrier fabrics (BFs) in order to characterize and rank BF effectiveness for improving the

3.5 GHz Waveform Generation for Testing and Development of ESC Detectors

November 17, 2017
Author(s)
Raied M. Caromi, John Mink, Michael R. Souryal
Environmental Sensing Capability (ESC) sensors will be used in the 3.5 GHz Citizens Broadband Radio Service (CBRS) to detect and report the presence of federal incumbent radar signals in 100 MHz of spectrum. Unlike traditional radar detection schemes, ESC

Heat pump concepts for nZEB Technology developments, design tools and testing of heat pump systems for nZEB in the USA, Country report IEA HPT Annex 40 Task 2, Task 3 and Task 4 of the USA

December 8, 2015
Author(s)
William V. Payne, Arthur H. Fanney, William M. Healy, Joshua D. Kneifel, Tania Ullah, Farhad Omar, Steven T. Bushby, Brian P. Dougherty, Dustin G. Poppendieck, Lisa C. Ng
The IEA HPT Annex 40 "Heat pump concepts for Nearly Zero Energy Buildings" deals with the application of heat pumps as a core component of the HVAC system for Nearly or Net Zero energy buildings (NZEB). This report covers Task 2 on the system comparison

Evaluating Bug Finders: Test and Measurement of Static Code Analyzers

May 23, 2015
Author(s)
Aurelien M. Delaitre, Bertrand C. Stivalet, Elizabeth N. Fong, Vadim Okun
Software static analysis is one of many options for finding bugs in software. Like compilers, static analyzers take a program as input. This paper covers tools that examine source code--without executing it--and output bug reports. Static analysis is a

EUV-Driven Carbonaceous Film Deposition and Its Photo-oxidation on a TiO2 Film Surface

September 23, 2013
Author(s)
Nadir S. Faradzhev, Monica McEntee, John Yate, Shannon B. Hill, Thomas B. Lucatorto
We report the photo-deposition of a carbonaceous layer grown on a TiO2 thin film by EUV radiation-induced chemistry of adsorbed n-tetradecane and the subsequent photo-oxidation of this film. It is found by chemical analysis of the C layer that irradiation

SEABIRD TISSUE ARCHIVAL AND MONITORING PROJECT: Egg Collections and Analytical Results for 2006-2009

August 2, 2012
Author(s)
Stacy S. Schuur, Paul R. Becker, Sylvain Berail, Russell D. Day, Olivier F. Donard, Keith A. Hobson, Amanda J. Moors, Rebecca S. Pugh, Lauren B. Rust, David G. Roseneau
Since 1999, the Seabird Tissue Archival and Monitoring Project (STAMP) has collected, banked, and analyzed seabird eggs using established protocols to monitor chlorinated pesticides, polychlorinated biphenyls (PCBs), brominated flame retardants, and

New Improved System for WWVB Broadcast

November 14, 2011
Author(s)
John P. Lowe, Matthew J. Deutch, Glenn K. Nelson, Douglas D. Sutton, William C. Yates, Peder Hansen, Oren Eliezer, Tom Jung, Stephen Morrison, Yingsi Liang, Dinesh Rajan, Sidharth Balasubramanian, Arun Ramasami, Waleed Khalil
The WWVB broadcast of the time-code signal has not undergone major changes in its communications protocol and modulation scheme since its introduction in 1963. Its amplitude-modulation (AM) and pulse-width based representations of its digital symbols were

Results from a Full-Scale Smoke Alarm Sensitivity Study

April 9, 2010
Author(s)
Thomas Cleary
A series of 24 full-scale experiments was conducted to examine the effects of alarm type (photoelectric, ionization, and dual sensor), alarm location, fabric type (100% cotton and 100% polyester), polyurethane foam density, ignition scenario, and room

Electron Microscope Study of Strain in InGaN Quantum Wells in GaN Nanowires

April 1, 2009
Author(s)
Roy H. Geiss, David T. Read
GaN nanowires with InGaN quantum wells (QW) were grown on heated Si(111) substrates by molecular beam epitaxy (MBE) using elemental Ga and In and a radio-frequency-plasma N2 source. The growth procedures and the morphology of these nanowires have been

Biocompatibility of atomic layer deposited alumina thin films

December 17, 2007
Author(s)
Dudley Finch, Tammy L. Oreskovic, Krishna Ramadurai, Cari F. Herrmann, Steven George, Roop L. Mahajan
Presented in this paper is a study of the biocompatibility of a hydrophilic alumina thin film and a hydrophobic variation deposited on standard glass cover slips using atomic layer deposition (ALD) techniques. The pure alumina ALD coating exhibits a water

Role of Interfacial Water in the Adhesion Loss of Polymer/Substrate Systems and Composites

June 21, 2007
Author(s)
Tinh Nguyen, Joannie W. Chin, E Byrd, David Alshed, Cyril Clerici, Jonathan W. Martin
Water at the polymer/substrate interface in coatings, adhesives, and fiber-reinforced polymer composites is often the main cause of adhesion loss in these systems. Using experimental data measured in this study, we critically assess the role of interfacial

Fire Structure Interface and Thermal Response of the World Trade Center Towers. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-5G) ***DRAFT for Public Comments***

September 1, 2005
Author(s)
Kuldeep R. Prasad, Howard R. Baum
The collapse of the World Trade Center towers on September 11, 2001, resulting from a combination of aircraft impact damage and subsequent fires, was studied as part of the Federal Building and Fire Safety Investigation of the WTC Disaster. This report

Magnetization Dynamics Modeled in Magnetic Thin Films

March 1, 2003
Author(s)
Robert D. McMichael
One of the challenges facing designers of high data rate computer hard drives and magnetic memory chips is that for most magnetic metals, it typically takes a fewnanoseconds for the magnetization to come to rest after it has been switched or bumped by a

Extreme Bottom-up Gold Filling of High Aspect Ratio Features

February 27, 2023
Author(s)
Daniel Josell, Thomas P. Moffat
Where copper interconnects fabricated using superconformal electrodeposition processes have enabled dramatic advances in microelectronics over the last quarter century, gold filled gratings fabricated using superconformal 〖Bi〗^(3+)-mediated bottom-up

Life Cycle Environmental Impacts of Plastics: A Review

March 1, 2022
Author(s)
Paul Rikhter, Ilayda Dinc, Yirui Zhang, Ted Jiang, Bobby Miyashiro, Shelby Walsh, Ruoyu Wang, Yvonne Dinh, Sangwon Suh, Joshua D. Kneifel
Global production and consumption of plastics and its deposition in the environment are growing rapidly, while their life-cycle impacts to the environment are yet to be fully understood. This study reviews the existing literature with the goal of
Displaying 1876 - 1900 of 1947
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