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Displaying 1876 - 1900 of 1910

CCQM K132 Low-Polarity Analytes in a Biological Matrix: Vitamin D Metabolites in Human Serum

September 15, 2017

Author(s)

Stephen Wise, Susan Tai, David L. Duewer

… in human serum are typically in the 16 ng/g to 30 ng/g (40 nmol/L to 75 nmol/L) range, with 25(OH)D3 usually …

GPS Changes Before and After Implementation of the Architecture Evolution Plan

December 1, 2008

Author(s)

Marc A. Weiss

… stabilities across satellite blocks worsened by 8-30%. 12-hour and 24-hour periodic behavior generally …

Design and Uncertainty Analysis for a PVTt Gas Flow Standard

February 1, 2003

Author(s)

John D. Wright, Aaron N. Johnson, Michael R. Moldover

… and Technology (NIST) and other laboratories for more than 30 years[l, 2, 3,4]. The PVTt systems at NIST consist of a …

Effects of Interaction Potential on Elastic-Electron-Scattering Parameters in Surface-Sensitive Electron Spectroscopies

August 1, 2000

Author(s)

Aleksander Jablonski, Cedric J. Powell

… by up to a factor of three for scattering angles less than 30 , while total cross sections varied between 15% and 61%. …

Versailles Project on Advanced Materials and Standards (VAMAS) Interlaboratory Study on Measuring the Number Concentration of colloidal gold nanoparticles

March 9, 2022

Author(s)

Caterina Minelli, Karen E. Murphy, Monique Johnson, Antonio Montoro Bustos, Jeffrey Fagan, Ingo Strenge

… consisted of spherical gold nanoparticles of nominally 30 nm in diameter. The study provides quantitative data to …

Laboratory Tests of a Prototype Carbon Dioxide Ground-Source Air Conditioner

April 12, 2021

Author(s)

Harrison M. Skye, Wei Wu

… (10 to 25) °C, and benefit of (0 to 5) % for ELTs ranging (30 to 39) °C. The CO2 system was compared to a 'low-cost', …

Comparison of the Coordination of B 12 F 12 ^2-^, B 12 Cl 12 2- , and B 12 H 12 ^2-^ to Na + in the Solid State: Crystal Structures and Thermal Behavior of Na 2 (B 12

April 6, 2017

Author(s)

Eric V. Bukovsky, Dmitry V. Peryshkov, Hui Wu, Wei Zhou, Wan Si NMN Tang, W. Matthew Jones, Vitalie Stavila, Terrence J. Udovic, Steven H. Strauss

… O) 2 (B 12 F 12 ) and Na 2 (H 2 O) 2 (B 12 Cl 12 ) in ca. 30 min and 2 h, respectively, and complete dehydration to Na …

Control of Nanophase Defects During Ceramic Melt Processing of Bi2Sr2CaCu2O8+x High Tc Superconductors

February 19, 2017

Author(s)

T J. Haugan, Winnie Wong-Ng, Lawrence P. Cook, H J. Brown, L Swartzendruber

To improve the critical current density of Bi 2Sr 2CaCu 2O 8+x high temperature superconductors (HTS) in high magnetic field applications (> 1 T from 20 K to 50 K), it is necessary to introduce a high density (approximately equal to} 5 per 100 nm in a

Nonlinear Database-Assisted Design Improves Wind Resistance of Low-Rise Buildings

February 19, 2017

Author(s)

Dat Duthinh, William P. Fritz

… By using NLDAD, improvement in wind resistance of 30 % was achieved, at the cost of 3.6 % increase in weight. …

Intermolecular Disulfide Bridge in the Crystal Structure of the ygfZ Protein From Escheriachia Coli

October 16, 2008

Author(s)

A Teplyakov, G Obmolova, A Howard, Andrey Galkin, W Krajewski, E Sarikaya, O Herzberg, G L. Gilliland

… molecule has a globular shape with dimensions of 60 X 50 X 30 . It consists of three domains that are arranged at the …

Stationary and non-stationary deformations in three-flat tests

July 7, 2008

Author(s)

Ulf Griesmann, Quandou (. Wang, Nicolas Laurenchet, Johannes A. Soons

… with a diameter of 300 mm. The form error of the flats is 30 nm peak-valley. The flats are bonded with a silicone …

Benefits and Costs of Research: A Case Study of Construction Systems Integration and Automation Technologies in Industrial Facilities

June 1, 2000

Author(s)

Robert E. Chapman

… for its CONSiAT-related investment costs of approximately $30.1 million. Stated in present value terms, every public …

Structural Heart Abnormalities are Prevalent on the 12-lead ECG among Volunteer Firefighters

April 1, 2025

Author(s)

Alexander Bae, Chi-Ju Lai, Yichen Yu, Nicole Krupa, David Hostler, Wai Cheong Tam, Mary Carey, Wendy Brunner, Dillon Dzikowicz

… substrates over the screening period. Conclusions: Nearly 30% of the interpretation statements generated from 12-lead …

Report on High Energy Arcing Fault Experiments - International Experimental Results from Bus Duct and Switchgear Enclosures

July 1, 2024

Author(s)

Gabriel Taylor, Anthony D. Putorti Jr., Scott Bareham, Christopher U. Brown, Wai Cheong Tam, Michael Heck, Lucy Fox, Stephen Fink, Michael Selepak, Edward Hnetkovsky, Nicholas Melly, Kenneth Hamburger, Kenneth Miller

… fault current targets ranging from approximately 8 kA to 30 kA. Real-time electrical operating conditions, including …

Ultraviolet Radiation Technologies and Healthcare Associated Infections: Standards and Metrology Needs

August 20, 2021

Author(s)

Dianne L. Poster, C Cameron Miller, Richard Martinello, Norman Horn, Michael T. Postek, Troy Cowan, Yaw S. Obeng, John J. Kasianowicz

… with more than 500 registered attendees on September 30, 2020, an international conference on UV-C Technologies …

Droplet/Surface Interaction: Relevance to Fire Suppression

January 5, 2011

Author(s)

Anthony P. Hamins

… upon a heated stainless steel surface. A solution of 30 % (mass fraction) sodium acetate trihydrate, CH 3 COONa 3 …

Complex Polymorphic Behavior and Dielectric Properties of Perovskite-Related Sr(SR 1/3 Nb 2/3 )O 3

June 1, 2002

Author(s)

Igor Levin, Julia Y. Chan, J J. Scott, L Farber, Terrell A. Vanderah, James E. Maslar

… temperature dependence, while that for LT-Sr4 Nb2O9 was 30 with near-linear temperature dependence. The peculiar …

Mass Spectrometric Assays for the Tandem Lesion 8,5'- Cyclo-2' Deoxyguanosine in Mammalian DNA

March 19, 2002

Author(s)

Pawel Jaruga, M Birincioglu, H Rodriguez, M Miral Dizdar

… P., and Rodriguez, H. (2001) Free Radical Biol. Med. 30, 774-784]. In the present work, we investigated the …

Surfactant-Assisted Atomic-Level Engineering of Spin Valves

March 1, 2002

Author(s)

H D. Chopra, D X. Yang, P J. Chen, William F. Egelhoff Jr.

Surfactant Ag was successfully used to atomically engineer interfaces and nanostructure in NiO-Co-Cu based bottom spin valves. DC magnetron sputtered Co (3.0nm)/Cu (1.5 nm)/Co (2.5 nm)/NiO (50nm) bottom spin valves were studied with and without Ag as a

Fire Resilience of a Steel-Concrete Composite Floor System: Full Scale Experimental Evaluation for Influence of Slab Reinforcement and Unprotected Secondary Beam (Test #3)

October 2, 2023

Author(s)

Selvarajah Ramesh, Lisa Choe, Matthew Hoehler, Matthew Bundy, Rodney Bryant, Giovanni Di Cristina Torres, Brian Story, Anthony R. Chakalis, Artur A. Chernovsky, Philip Deardorff, Michael Selepak

… diameter deformed bars with a center-to-center spacing of 30 cm (230 mm2/m). Unlike in Test #1 and Test #2, the …

Hydroxyapatite Formation in a Calcium Phosphate Cement Under Different Storage Conditions

October 12, 2021

Author(s)

S Hirayama, Shozo Takagi, T Ikemi, Laurence Chow

… (TTCP) and dicalcium phosphate anhydrous (DCPA) hardens in 30 min with the formation of hydroxyapatite (HA) as the final …

Morphological Partitioning of Ethylene Defects in Random Propylene-Ethylene Copolymers

August 1, 2000

Author(s)

R G. Alamo, David L. VanderHart, Marc R. Nyden, L Mandelkern

… ethylene residues in CR regions ranging from 0.24 to 0.30 and an average concentration of ethylenes in the NC region …

Intensity of the Simultancous Vibrational Absorption CO 2 (v 3 =1) + N 2 (v=1) CO 2 (v 3 =0) + N 2 (v=0) at 4680 cm -1

May 1, 2000

Author(s)

B Mate, Gerald T. Fraser, Walter J. Lafferty

… in compressed gas mixtures were extensively studied 30-40 years ago. Due to both their large linewidths and their …

Nature of Coupling and Origin of Coercivity in Giant Magnetoresistance NiO-Co-Cu-Based Spin Valves

April 1, 2000

Author(s)

H D. Chopra, D X. Yang, P J. Chen, D Parks, William F. Egelhoff Jr.

The effect of various couplings on the switching field and coercivity in NiO-Co-Cu-based giant magnetoresistance (GMR) bottom spin valves is systematically investigated. A difficulty in controlling contributions to switching field and coercivity from

A Frequency Stabilized Laser Array for Use in Displacement Metrology

February 17, 2000

Author(s)

J Pedulla, R Deslattes, John R. Lawall

… the error in the iodine-stabilized laser to between 20-30 kHz rms (Fig. 1). To measure the quality of the frequency …

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