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Search Publications

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Displaying 3751 - 3775 of 74638

Feasibiliy and Fidelity of Data Exchange Through IFC for Building Commissioning

October 12, 2021
Author(s)
Hongjun Wang, Burcu Akinci, J H. Garrett, K A. Reed
The building commissioning (BC) process ensures that the various interacting systems in a building are properly installed and operating. It is a process requiring extensive data exchange among different participants across multiple project phases. The

Ferroics: Magnetic-Compass Lattice and Optical Phonon Dispersions of Dipolar Crystals

October 12, 2021
Author(s)
Takeshi Nishimatsu, U Waghmare, Yoshiyuki Kawazoe, Benjamin P. Burton, Kazutaka Nagao, N. Saito
We report a simple safe and attractive pedagogic demonstration with magnetic compasses that facilitates an intuitive understanding of the concept that ferromagnetism and ferroelectricity do not result from dipole-dipole interactions alone. Phonon

Ferromagnetic Resonance Line Width in Inhomogeneous Thin Films

October 12, 2021
Author(s)
Robert McMichael, A B. Kunz, D J. Twisselmann
The dynamic properties of magnetic materials are important for magnetic data storage. The primary measurement technique for understanding magnetization damping is ferromagnetic resonance line width. Because materials inhomogeneities increase experimental

Fifth Annual Report on Federal Agency Use of Voluntary Consensus Standards

October 12, 2021
Author(s)
K L. McIntyre, M B. Moore
Document is the Annual Report on Federal Agency Use of Voluntary Consensus Standards required to be submitted by NIST the office of Management Budget (OMB) under the National Technology Transfer and Advancement Act and OMB Circular A-119. It contains a

Final Report of Key Comparison CCQM-K4 (Ethanol in Air)

October 12, 2021
Author(s)
M J. Milton, C Brookes, A Marschal, Franklin R. Guenther, George C. Rhoderick, D E. Leer, L W. Zhen, C Takahashi, E Deak, Y A. Kustikov
This key comparison involved primary standards of ethanol in air maintained at eight laboratories. The nominal amount fraction of the standards used for the comparison was 120 mmol/mol which is typical of the levels used to calibrate evidential breath

Final Report of the SIM 60 Co Air-Kerma Comparison (KCDB Entry SIM.RI (I)-K1)

October 12, 2021
Author(s)
C K. Ross, K Shortt, M Saravi, A Meghzifene, V M. Tovar, R A. Barbosa, C N. da Silva, F Gutt, Stephen M. Seltzer
Transfer chambers were used to compare the standards for 60Co air kerma maintained by seven laboratories. Six of the laboratories were members of the Sistema Interamericano de Metrolog a (SIM) regional metrological organization while the seventh was the

Final Report on CIPM Key Comparison of Multiples and Submultiples of the Kilogram (CCM.M-K2)

October 12, 2021
Author(s)
L O. Becerra, W Bich, N Bignell, G D. Chapman, J.-H. Chung, Stuart Davidson, M Glaser, A Gosset, Zeina J. Kubarych, W G. Lee, A Ooiwa, P Richard, R Spurny, A Torino, J Verbeek, L Q. Zhang
A key comparison concerning mass determination of five mass standards has been carried out under the auspices of the Comite Consultatif pour a la Mase et les Grandeurs Apparantees (CCM) from March 1998 to March 1999. The nominal values of the mass

First Results With Small Cam-Driven Absolute Gravimeter

October 12, 2021
Author(s)
A L. Vitouchkine, J E. Faller
We describe the design and first results of a cam-driven portable absolute gravinieter. The cam-based design of a dropper allows us to builda compact system that uses 20 mm of free-fall for the measurement. The instrument drops a test mass 200 times a

Fluctuation Effects on Surface Pattern Formation in Thin Block Copolymer Films

October 12, 2021
Author(s)
A C. Smith, Jack F. Douglas, Eric J. Amis, Alamgir Karim
Hole formation on the surface of thin block copolymer films is investigated as a function of time (t), temperature (T) and film thickness. The size of the holes, h s, approaches a steady state value at long times h s,∞ = h s(t -> ∞) and we introduce a

Fluoroscent Probe for Cure Monitoring of Hydrosilation-Curable Silicone

October 12, 2021
Author(s)
Y Hotta, K Komatsu, Francis W. Wang
This study aimed to evaluate a fluorescent probe, 9,10-bis-(phenylethynyl) anthracene (BPEA), for cure monitoring of hydrosilation-curable silicone (HCS). The HCS consisted of 74.9 % mass fraction of vinyl terminated polydimethylsiloxane (DV-PDMS)

Functional Oligothiophenes for Use in Self-Assembled Monolayer Field-Effect Transistors

October 12, 2021
Author(s)
A R. Murphy, Clayton Mauldin, J M. Frechet, Paul C. Chang, Kanan Putambekar, Kin-Yip Phoa, V Subramanian, Dean DeLongchamp, Daniel A. Fischer, Eric K. Lin
Asymmetric, end-functionalized thiophene oligomers capable of self-assembly and covalent bonding to silicon surfaces have been synthesized. Monolayer films were made using solution or Langmuir-Blodgett deposition techniques. Characterization of the films

Generalized Pseudo-Potentials for Higher Partial Wave Scattering

October 12, 2021
Author(s)
R Stock, A Silberfarb, I H. Deutsch, E L. Bolda
We derive a generalized zero-range pseudo-potential applicable to all partial wave solutions to the Schrodinger equation based on a delta-shell potential in the limit that the shell radius approaches zero. This properly models all higher order multipole

Giant Magnetoresistive Spin-Valve Transpinnor

October 12, 2021
Author(s)
S Bae, S Zurn, William F. Egelhoff Jr., P J. Chen, L Sheppard, E J. Torok, J H. Judy
A giant magnetoresistive (GMR) spin-valve Transpinnor, a new kind of active solid-state magneto-electronic device or spin-transistor, has been fabricated and investigated for the first time using anti-ferromagnetic oxide exchange biased bottom GMR spin

Growth of Magnetic Nanowires in an Applied Field

October 12, 2021
Author(s)
R D K. Misra, H Nathani, William F. Egelhoff Jr.
Nanostructured quasi one-dimensional magnetic materials (nanowires) have attracted significant scientific and technological interest because they exhibit unique magnetic properties not displayed by their bulk or nanoparticle counterparts. Nanocrystalline

High Sensitivity CARS Microscopy With Two Tightly SynChronized Picosecond Lasers

October 12, 2021
Author(s)
J Potman, D J. Jones, J X. Cheng, X. Xie, Jun Ye
We demonstrate a significant improvement in signal-to-noise ratio recovered from coherent anti-Stokes Raman scattering (CARS) spectroscopy/microscopy, using two tightly synchronized picosecond Ti: sapphire lasers. A temporal jitter between the pulse trains
Displaying 3751 - 3775 of 74638