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Displaying 201 - 225 of 237

Reaction Kinetics in Ionic Liquids: Pulse Radiolysis Studies of 1-Butyl-3-Methylimidazolium Salts

August 1, 2001

Author(s)

D Behar, Carlos A. Gonzalez, Pedatsur Neta

… conditions. BMI + is reduced by e aq - very rapidly (k = 1.9 10 10 L mol -1 s -1 ) but not by (CH 3 ) 2 CO - radicals (k … BMI + reacts rapidly also with OH radicals (k = 3.7 x 10 9 L mol -1 s -1 ) to produce a mixture of isomeric …

The Rotational Spectra Structure, Internal Dynamics and Electric Dipole Moment of Argon-Ketene Van Der Walls Complex

June 1, 2001

Author(s)

C W. Gillies, J Z. Gillies, S J. Amadon, R D. Suenram, Francis J. Lovas, H Warner, R Malloy

Pulsed-beam Fourier transform microwave spectroscopy was used to observe and assign the rotational spectra of the argon-ketene van der Waals complex. Tunneling of the hydrogen or deuterium atoms splits the a- and b-type rotational transitions of H 2CCO-Ar

Scattering From Sinusoidal Gratings

September 1, 1997

Author(s)

B C. Park, Theodore V. Vorburger, Thomas Germer, Egon Marx

… of approximately 90 nm and a spatial wavelength of 6.67 micrometer was used. Measurements and calculations were …

Iron Oxide Nanoparticles as Positive T1 Contrast Agents for Low-Field Magnetic Resonance Imaging at 64 mT

July 17, 2023

Author(s)

Samuel Oberdick, Kalina Jordanova, John Lundstrom, Giacomo Parigi, Megan Poorman, Gary Zabow, Katy Keenan

… carboxylic acid coated SPIONs with a range of sizes (4.9 nm to 15.7 nm) in order to understand size-dependent … We measure longitudinal relaxation (r1) values of up to 67 L mmol-1 s-1, which is more than an order of magnitude …

Estimating the Impact of 16 CFR Part 1633 on Bed Fire Outcomes

April 28, 2020

Author(s)

Stanley W. Gilbert, David T. Butry, Richard G. Gann, Rick D. Davis

… injuries decreased by 25 % and fatalities decreased by 67 %. The decreases in injuries and, especially, fatalities …

Impact of conventional wastewater treatment and reuse site practices on the bacterial community structure of reclaimed water

October 15, 2018

Author(s)

Prachi Kulkarni, Nathanael David Olson, Joseph N. Paulson, Mihai Pop, Cynthia Maddox, Emma Claye, Rachel E. Rosenberg Goldstein, Manan Sharma, Amy R. Sapkota

… differentially treated wastewater and reclaimed water (n=67 samples) from four U.S. wastewater treatment plants and …

Performance and failure modes of Si anodes patterned with thin-film Ni catalyst islands for water oxidation

March 6, 2018

Author(s)

Ke Sun, Nicole L. Ritzert, Jimmy John, Haiyan Tan, William G. Hale, Jingjing Jiang, Kimberly M. Papadantonakis, Thomas P. Moffat, Bruce S. Brunschwig, Nathan S. Lewis

… ± 1.3 mA cm-2, and a photovoltaic efficiency of 6.7 ± 0.9%. For the np+-Si(111)|NiuE18.0% samples, the photocurrent … at the equilibrium oxygen evolution potential was 12.7 ± 0.9 mA cm-2, yielding an ideal regenerative cell …

Aqueous Solubilization of Hydrophobic Supramolecular Metal-Organic Nanocapsules

June 1, 2014

Author(s)

Harshita Kumari, Steven R. Kline, Jerry L. Atwood

… given the longer alkyl tails of tween 80(C18:1, cis 9), a remarkable progression in radius is not observed for … to 0.77 value for the control (0.62), tween 20 dimeric (0.67) and tween 20 hexameric (0.68) micelles that demonstrates …

Contact Potential Measurements on Nano-particle embedded AlGaN/Metal Interface Using Kelvin Force Microscopy

December 11, 2013

Author(s)

Jungjoon Ahn, Min-Seok Kang, Lin You, Joseph J. Kopanski, Sang-Mo Koo

AlGaN/GaN Schottky barrier diodes (SBDs) have received much attention for high power and high- frequency applications because of the high breakdown field in the wide band gap semiconductor. Schottky contacts with tunable barrier height (ΦB) between the

In Vivo Characteristics of Premixed Calcium Phosphate Cements When Implanted in Subcutaneous Tissues and Periodontal Bone Defects

August 1, 2010

Author(s)

Akiyoshi Sugawara, Kenji Fujikawa, Satoshi Hirayama, Shozo Takagi, Laurence Chow

… In each cement mixture, the Ca to P molar ratio was 1.67. The glycerol contained Na 2 HPO 4 (30 mass %) and …

Performance of Dual Photoelectric/Ionization Smoke Alarms in Full-scale Fire Tests

February 27, 2009

Author(s)

Thomas G. Cleary

… sensor was the first to respond, the dual alarm activated 67 s sooner on average than the photoelectric alarm. Tests …

Huntington s Disease: The Need for a Standard Reference Material to Provide Quality Control for the Accurate Detection of the Number of Causal Trinucleotide Repeats

October 16, 2008

Author(s)

Barbara C. Levin, Kristy L. Richie

… on chromosome 4 at position 4p16.3. The HD gene contains 67 exons (the CAG triplet repeat is located in exon 1) and …

Crystal Structure, Stoichiometry, and Dielectric Relaxation in Bi 3.32 Nb 7.09 O 22.7 and Structurally Related Ternary Phases

April 17, 2008

Author(s)

I E. Grey, Terrell A. Vanderah, W G. Mumme, Robert S. Roth, Jorge T. Guzman, Juan C. Nino, Igor Levin

… structure of the phase previously reported to occur at 4:9 Bi2O3:Nb2O5 has been refined using single-crystal X-ray and … 4:9 Bi2O3-Nb2O5, bismuth iron niobates, bismuth niobates, …

Strong, Macroporous, and in Situ-Setting Calcium Phosphate Cement Layered Structures

May 26, 2007

Author(s)

Hockin D. Xu, Lisa E. Carey, Elena F. Burguera

… S, (mean sd; n = 6) of CPC-scaffold decreased from (9.7 1.2) MPa to (1.8 0.3) MPa (p < 0.05), when the porosity …

Two-Photon Spectroscopy of the 4S State of Atomic Lithium: Energy Levels, Hyperfine Structure, and Isotope Shifts

February 1, 2002

Author(s)

W DeGraffenreid, Craig J. Sansonetti

In recent years there have been rapid advances in theoretical models and calculational techniques for few-electron systems. Atomic structure calculations for three-electron systems include not only non-relativistic energy but also relativistic and quantum

Phase Equilibria and Dielectric Behavior in the CaO:Al 2 O 3 :Nb 2 O 5 System

November 1, 2000

Author(s)

Terrell A. Vanderah, W Febo, Julia Y. Chan, Robert S. Roth, J. M. Loezos, L D. Rotter, Richard G. Geyer, B A. Reisner, Dennis B. Minor

… of the resonant frequency was obtained near x=0.67 with a permittivity of 32; no solid solution was detected …

Mathematical Analyses of AC Voltammetry of a Surface Confined Redox Process

August 1, 1998

Author(s)

W T. Yap

… gold electrode (Feng Z.Q., Sagara T., Niki K., Anal. Chem. 67,3564,1995), and by Niaura and Gaigalas for azurin at a …

The 2019 NIST Speaker Recognition Evaluation CTS Challenge

May 18, 2020

Author(s)

Seyed Omid Sadjadi, Craig S. Greenberg, Elliot Singer, Douglas Reynolds, Lisa Mason, Jaime Hernandez-Cordero

… task was audio-visual person recognition. A total of 67 organizations (forming 51 teams) from academia and …

Latent Porosity in Alkali-Metal M 2 B 12 F 12 Salts: Structures and Rapid Room-Temperature Hydration/Dehydration Cycles

October 2, 2017

Author(s)

Dmitry V. Peryshkov, Eric V. Bukovsky, Matthew R. Lacroix, Hui Wu, Wei Zhou, W. Matthew Jones, Matic Lozinsek, Travis C. Folsom, D. Luke Heyliger, Terrence J. Udovic, Steven H. Strauss

Structures of the alkali metal hydrates Li 2(H 2O) 4Z, LiK(H 2O) 4, Na 2(H 2O) 3Z, and Rb 2(H 2O) 2Z, unit cell parameters for Rb 2Z and Rb 2(H 2O) 2Z, and the DFT-optimized structures of K 2Z, K 2(H 2O) 2Z, Rb 2Z, Rb 2(H 2O) 2Z, Cs 2Z, and Cs 2(H 2O)Z are

Evaluated Kinetics of Terminal and Non-Terminal Addition of H Atoms to 1-Alkenes: A Shock Tube Study of H + 1-Butene

December 17, 2014

Author(s)

Jeffrey A. Manion, Iftikhar A. Awan

Single-pulse shock tube methods have been used to thermally generate hydrogen atoms and investigate the kinetics of their addition reactions with 1-butene at temperatures of 880 K to 1120 K and pressures of 145 kPa to 245 kPa. Rate parameters for the

Neutron Scattering and Spectroscopic Studies of Hydrogen Adsorption in Cr 3 (BTC) 2 - A Metal-Organic Framework with Exposed Cr 2+ Sites

April 1, 2011

Author(s)

Kenji Sumida, Jae-Hyuk Her, Mircea Dinca, Leslie J. Murray, Jennifer M. Schloss, Christopher J. Pierce, Benjamin A. Thompson, Stephen A. FitzGerald, Craig Brown, Jeffrey R. Long

… high surface area facilitates H 2 uptakes (1 bar) of 1.9 mass fraction %(wt %) at 77 K, and 1.3 wt % at 87 K, and a …

Performance of Dual Photoelectric/ Ionization Smoke Alarms in Full-Scale Fire Tests

March 25, 2010

Author(s)

Thomas G. Cleary

… to reach the alarm threshold, the dual alarm activated 67 s faster on average than the photoelectric alarm. While in …

Systematic oxidation of polystyrene by ultraviolet-ozone,characterized by near edge x-ray absorption fine structure and contact angle

August 5, 2008

Author(s)

Daniel A. Fischer, Robert Klein, Joseph~undefined~undefined~undefined~undefined~undefined Lenhart

… in the water contact angle hysteresis, at a value of 67+2 degrees, due primarily to chemical heterogeneity. …

Effect of Central Fans and In-Duct Filters on Deposition Rates of Ultrafine and Fine Particles in an Occupied Townhouse

January 1, 2004

Author(s)

L A. Wallace, Steven Emmerich, Cynthia H. Reed

… its effectiveness. A reduction of particle levels by 67% or more could be achieved by use of the ESP when …

Continous Measurements of Air Change Rates in an Occupied House for One Year: The Effect of Temperature, Wind, Fans, and Windows

July 1, 2002

Author(s)

L A. Wallace, Steven Emmerich, Cynthia H. Reed

… rooms were very similar, ranging only from 0.62 h -1 to 0.67 h -1 , suggesting that conditions were well mixed … rooms were very similar, ranging only from 0.62 h -1 to 0.67 h -1 , suggesting that conditions were well mixed …

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