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Displaying 176 - 200 of 319

The Customer Speaks: How the Users See the NIST Research Library

May 1, 2003

Author(s)

Barbara P. Silcox, P J. Deutsch

… conducted this customer survey. With 528 respondents from 48 out of 55 NIST divisions, the survey results represent the …

Comparitive Analysis of an Automative Air Conditioning Systems Operating With CO2 and R134a.

January 1, 2002

Author(s)

Piotr A. Domanski, J S. Brown, S F. Yana-Motta

… the COP of CO2 was lower by 21% at 32.2C and by 34% at 48.9 deg C. At higher speeds and ambient temperatures, the …

Equilibrium Constant of the Reaction OH + HNO 3 } H 2 O + NO 3 in Aqueous Solution

March 1, 2001

Author(s)

G A. Poskrebyshev, Pedatsur Neta, Robert E. Huie

… s -1 , and the equilibrium constant K eq = (2.8 0.4) x 10 5 , all at zero ionic strength. From the latter value of K eq … NO 3 /HNO 3 ) = (2.40 0.01) V and E o (NO 3 /NO 3 - ) = (2.48 0.01) V. …

Comparitive Analysis of an Automotive Air Conditioning Systems Operating with CO 2 and R134a

January 1, 2001

Author(s)

J S. Brown, S F. Yana Motta, Piotr A. Domanski

… the COP for CO 2 was lower by 21% at 32.2 C and by 34 % at 48.9 C. At higher speeds and ambient temperatures, the COP …

The Electrodeposition of Aluminium-Niobium Alloys From Chloroaluminate Electrolytes

August 1, 1998

Author(s)

Gery R. Stafford, G Haarberg

… The electrochemical behavior of niobium in a 52:48 mole ratio A1C1 3 :NaC1 molten salt electrolyte was … Alloys containing a Nb atomic fraction of up to 13.5% have been electrodeposited. X-ray diffraction and …

BABAR-ERI: Black Array of Broadband Absolute Radiometers - Earth Radiation Imager

September 22, 2023

Author(s)

Chris Yung, Cameron Straatsma, Nathan Tomlin, David Harber, Odele Coddington, John H. Lehman, Michelle Stephens

BABAR-ERI is being developed for a CubeSat capable of imaging the Earth's outgoing longwave radiation with a 1 km ground sample distance (GSD) using a push-broom imager. The detector is a silicon micromachined 32-pixel linear array of electrical

ParquetDB: A Lightweight Database System Leveraging Apache Parquet for Efficient Data Storage and Retrieval

February 7, 2025

Author(s)

Logan Lang, Eduardo Hernandez, Kamal Choudhary, Aldo Romero

Traditional data storage formats and databases often introduce complexities and inefficiencies that hinder rapid iteration and adaptability. To address these challenges, we introduce ParquetDB, a Python-based database framework that leverages the Parquet

The persistence of smoke VOCs indoors: partitioning, surface cleaning, and air cleaning in a smoke-contaminated house

October 13, 2023

Author(s)

Jienan Li, Michael F. Link, Shubhrangshu Pandit, Marc Webb, Cholaphan Deeleepojananan, Kathryn Mayer, Lauren Garofalo, Katelyn Rediger, Dustin Poppendieck, Stephen Zimmerman, Marina Vance, Vicki Grassian, Glenn Morrison, Barbara Turpin, Delphine Farmer

… control smoke VOC partitioning: a faster one (1.0 - 5.2 h) that describes the time to reach equilibrium between …

A pyroelectric detector-based method for low uncertainty spectral irradiance and radiance responsivity calibrations in the infrared using tunable lasers

April 4, 2022

Author(s)

Brian Alberding, John Woodward, Ping-Shine Shaw, Leonard Hanssen, Catherine Cooksey, Joseph P. Rice

… 950 nm and < 900 nm) for PED #1 and 0.34 % (> 1000 nm), 0.48 % (900 nm), and 0.42 % ( 950 nm and < 900 nm for PED #2). …

Influence of Shrinkage Stress Developed During Hardening of Photo-Cured Resin on Formation of Polymer Network Structure

October 12, 2021

Author(s)

K Komatsu, Francis W. Wang, K Nemoto

… significantly higher than that of the low-stress resin (1.48). These results indicated that the higher shrinkage stress …

Optimal Series Resistors for On-Wafer Calibrations

November 8, 2019

Author(s)

Jasper A. Drisko, Richard A. Chamberlin, James C. Booth, Nathan D. Orloff, Christian J. Long

… which resistor is the best resistor. We fabricated 48 different series resistors with dc resistances ranging …

NIST Interlaboratory Study on Glycosylation Analysis of Monoclonal Antibodies: Comparison of Analytical Methods

October 7, 2019

Author(s)

M. L. De Leoz, David L. Duewer, Scientists Multiple, Stephen E. Stein

… identified by each laboratory ranged from 4 to 48. Agreement with consensus did not depend on the specific …

Nonlinear Silicon waveguides produce tunable frequency combs spanning 2.0-8.5 ?m

September 25, 2019

Author(s)

Nima Nader, Abijith S. Kowligy, Jeffrey T. Chiles, Eric J. Stanton, Henry R. Timmers, Alexander J. Lind, Kimberly Briggman, Scott Diddams, Flavio Caldas da Cruz, Richard Mirin, Sae Woo Nam, Daniel M. Lesko

… < 2 dB) and broadband 3 dB output coupling spanning 6.0-8.5 υm. Suspended-Si waveguides produce tunable infrared … υm with 140 pJ pulses. The optical bandwidth spans 2.0-8.5 υm with spectra that can be tailored by geometrical … and 100 MHz spacing in the wavelength range of 4.8- 8.5 υm. These sources are used for broadband, high …

3.5 GHz Radar Waveform Capture at Fort Story

August 4, 2017

Author(s)

Paul D. Hale, Jeffrey A. Jargon, Peter J. Jeavons, Michael R. Souryal, Adam J. Wunderlich, Mark Lofquist

… signals currently operating in the 3550 MHz 3650 MHz (3.5 GHz) band. In this second phase of assembling the library, … consisted of about 2700 sweeps of the main beam and nearly 48 600 individual pulses ranging in peak power by over 40 dB. … 3.5 GHz, radar, SPN-43, ESC, I/Q …

Laser frequency stabilization based on steady-state spectral-hole burning in Eu3+:Y2SiO5

June 23, 2015

Author(s)

Shon M. Cook, Till P. Rosenband, David R. Leibrandt

… stability of 1x10 -15 tau -1/2 that averages to 8.5 (+4.8 -1.8) x 10 -17 at tau = 73 s. Residual amplitude …

Tailor-Made Polyamide Membranes for Water Desalination

December 30, 2014

Author(s)

Edwin P. Chan, Wansuk Chol, Joona Bang, Jong Suk Lee, Jung-Hyun Lee, Joung-Eun Gu

… IP-assembled counterparts. A maximum water permeance of 1.48 L m-2 h-1 bar-1 with sodium chloride rejection of 98.2 % is achieved, which is over 2.5 times higher in water flux than the IP-assembled …

The Thermodynamic Properties of Propane: From p-r-T to the Equation of State

September 14, 2010

Author(s)

Mark O. McLinden, Eric W. Lemmon

… fluid region from the triple point temperature of 85.48 K to 520 K with pressures to 1000 NPs. The equation is …

Oxygen Reduction Kinetics on Electrodeposited Pt, Pt_(100-x)Ni_(x) and Pt_(100-x)Co_(x)

December 10, 2008

Author(s)

Thomas P. Moffat, J Mallett, Sun M. Hwang

The kinetics of the oxygen reduction reaction (ORR) on a series of electrodeposited Pt_(100-x)Ni_(x) and Pt_(100-x) Co_(x)alloy films were examined in comparison to electrodeposited Pt and mechanically-polished polycrystalline Pt. The alloys were

Nonthermal continuum toward Sagittarius B2(N-LMH)

April 11, 2007

Author(s)

J M. Hollis, P R. Jewell, A Remijan, Francis J. Lovas

… centered at 85 different frequencies in the range 1 48 GHz. The continuum heavily influences the molecular …

Single Molecule Measurements of Trapped Circular DNA During Electrophoresis in Agarose Gels

November 1, 2006

Author(s)

Kenneth D. Cole, Adolfas K. Gaigalas, B. Akerman

… a fluorescent dye. Three open circles with sizes of 52.5 kilo basepairs (kbp), 115 kbp, and 220 kbp were trapped by … of seconds. The velocity and average length of the 52.5 kbp open circles and 48.5 kbp linear DNA were measured during electrophoresis in …

Methods for hearing aid directivity index measurements under simulated real-ear conditions

September 1, 2005

Author(s)

Randall P. Wagner

… aid. To address this limitation, Working Group 48 of the ANSI Standards Committee S3 on Bioacoustics worked …

Comparison of FDS Model Predictions With FM/SNL Fire Test Data.

April 1, 2001

Author(s)

Frederick W. Mowrer, P A. Friday

… presented and discussed. Simulations are run with 6,000, 48,000, and 162,000 grid cells to evaluate the influence of …

Immobilization of Nucleic Acids at Solid Surfaces: Effect of Oligonucleotide Length on Layer Assembly

August 1, 2000

Author(s)

A B. Steel, R Levicky, T M. Herne, Michael J. Tarlov

… of single-stranded DNA (ssDNA)derivatized with a terminal, 5' hexanethiol anchoring group with that of unfunctionalized oligonucleotides for lengths from 8 to 48 bases. Qualitatively, the results indicate that the thiol …

NMR Spectroscopy Molecular Dynamics, and Conformation of a Synthetic Octasaccharide Fragment of the O-Specific Polysaccharide of Shigella Dysenteriae Type 1

January 1, 2000

Author(s)

B Coxon, Fahriye N. Sari, G Batta, V Pozsgay

… developed; (a) 29 inter-residue, distance restraints, (b) 48 intra-residue, ring atom dihedral angle restraints, (c) …

Technical Support for the Consumer Product Safety Commission 1979 Interim Standards for Cellulose Insulation

March 2, 1981

Author(s)

D. D. Evans

… cellulosic insulations tested at densities below 48 kg/m3. A low flux exposure profile, ranging from 0.04 to …

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