U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 1 - 25 of 1340

Probing the Growth and Aging of Colloidal Cobalt Nanoparticles

June 11, 2009
Author(s)
Guangjun Cheng, Cindi L. Dennis, Robert D. Shull, Angela R. Hight Walker
… measurements to characterize the growth of colloidal cobalt (Co) nanoparticles during synthesis and their … the growth, TEM measurements have shown the formation of cobalt nanoparticles and magnetic measurements have shown the … of the synthesis, TEM shows that these freshly-prepared cobalt nanoparticles are mono-disperse and magnetization …

Synthesis, Thermal Behaviors and Dehydrogenation Kinetics Studies on Lithiated Ethylenediamine

October 13, 2014
Author(s)
Juner Chen, Guotao Wu, Zhitao Xiong, Hui Wu, Yong Shen Chua, Wei Zhou, Bin Liu, Xiaohua Ju, Ping Chen
… The lithiation of ethylenediamine by LiH is a step-wise process forming the … 2 CH 2 N(H)Li] 2 prior to the formation of dilithiated ethylenediamine LiN(H)CH 2 CH 2 N(H)Li. A reversible phase … The dynamical dehydrogenation mechanism of dilithiated ethylenediamine was investiaged by means of the …

Reduction of Cobalt and Iron Corroles and Catalyzed Reduction of CO 2

May 1, 2002
Author(s)
J Grodkowski, Pedatsur Neta, E Fujita, A Mahammed, L Simkhovich, Z Gross
… The role of cobalt and iron corroles in catalytic CO 2 reduction has been … The present finding that the M I oxidation states of the cobalt and iron corroles can react with CO 2 is in contrast … catalysis, CO 2 reduction, cobalt, corroles, electrochemistry, iron, photochemistry …

Cobalt-Corrin Catalyzed Photoreduction of CO 2

March 1, 2000
Author(s)
J Grodkowski, Pedatsur Neta
… A first attempt to use cobalt corrins (B 12 ) as homogeneous catalysts for … this process and that they are much more efficient than cobalt porphyrins. … B 12 , carbon dioxide, carbon monoxide, cobalt, corrins, photolysis … Cobalt-Corrin Catalyzed Photoreduction of CO 2 …

Hyperthermal (1-10 eV) cobalt deposition on Si(100)

August 1, 1996
Author(s)
M P. Knowles, S R. Leone
… Cobalt atoms with enhanced kinetic energy (0-10 eV) are … on room temperature Si(100) and compared to thermal cobalt deposition. Growth is monitored with Auger electron … auger, cobalt, deposition, hyperthermal, silicon … Hyperthermal (1-10 eV) cobalt deposition on Si(100) …

Application of the Hartmann-Tran profile to analysis of H2O spectra

June 9, 2015
Author(s)
D Lisak, A. Cygan, D Bermejo, J L. Domenech, Joseph T. Hodges, Ha Tran
… The Hartmann-Tran profile (HTP), which has been recently recommended as a … A. Cygan, D Bermejo, J L. Domenech, Joseph T. Hodges , Ha Tran … state changes correlation, pCqSDHC profile, Hartmann-Tran profile … Application of the Hartmann-Tran profile to analysis of H2O spectra …

Synthesis and Characterization of Cobalt/Gold Bimetallic Nanoparticles

April 1, 2007
Author(s)
Guangjun Cheng, Angela R. Hight Walker
… Cobalt/gold (Co/Au) bimetallic nanoparticles are prepared by … bimetallic nanoparticle, cobalt nanoparticles, cobalt/gold, magnetic nanoparticles, magnetic properties … Synthesis and Characterization of Cobalt/Gold Bimetallic Nanoparticles …

Infrared Spectra of trans-HOCO, HCOOH + , and HCO 2 - Trapped in Solid Neon

November 1, 2003
Author(s)
D Forney, Marilyn E. Jacox, Warren E. Thompson
… spectrum of the resulting solid which can be assigned to trans-HOCO, trans-HCOOH + , and HCO 2 - . The absorptions of trans-HOCO are readily identified by comparison with those … , HCOOH, HCOOH, HCOOH + , infrared spectrum, neon matrix, trans-HOCO … Infrared Spectra of trans-HOCO, HCOOH + , and HCO 2 - Trapped in Solid Neon …

Photochemical Properties of trans-1-chloro-3,3,3-trifluoropropene (trans-CHCl=CHCF3): OH Reaction Rate Constant, UV and IR Absorption Spectra, GWP and ODP.

June 23, 2014
Author(s)
Vladimir L. Orkin, Larissa E. Martynova, Michael J. Kurylo III
… constant for the gas phase reactions of OH radicals with trans-1-chloro-3,3,3-trifluoropropene (trans-CHCl=CHCF3) were performed using a flash photolysis … cm3 molecule-1 s-1. The atmospheric lifetime of trans-CHCl=CHCF3 due to reaction with tropospheric OH was …

Dipolar Chains formed by synthesized cobalt nanocubes

May 11, 2009
Author(s)
Guangjun Cheng, Robert D. Shull, Angela R. Hight Walker
… Cobalt nanocubes with an average edge length of 50 nm and the … cobalt, dipolar chains, magnetic nanoparticles, magnetic … Dipolar Chains formed by synthesized cobalt nanocubes …

Additive Manufacturing: A Trans-disciplinary Experience

July 20, 2016
Author(s)
Paul W. Witherell, Albert W. Jones, Yan Lu
… additive manufacturing has made the creation of a part a trans-disciplinary experience. In concert with advancements … to the printing of electronics. We will explore the trans-disciplinary nature of additive manufacturing. We … Trans-Disciplinary Systems Complexity Book …

Influence of the Colloidal Environment on the Magnetic Behavior of Cobalt Nanoparticles

November 6, 2007
Author(s)
Guangjun Cheng, Cindi L. Dennis, Robert D. Shull, Angela R. Hight Walker
… The magnetic properties of 10 nm cobalt (Co) nanoparticles in 1,2-dicholorbenenze (DCB) are … calorimetry, cobalt nanoparticles, ferrofluids, frozen ferrofluids, … of the Colloidal Environment on the Magnetic Behavior of Cobalt Nanoparticles …

Heterosubstrate Illumination Effects in III-V Solar Cells

February 16, 2022
Author(s)
Brianna Conrad, Behrang Hamadani
… is required for good performance in solar cells with III–V active layers and germanium substrates, despite … increase of generated power beyond that expected from the III–V junction. Discovered in the course of characterizing … Solar Cells, IV Curve Measurements, III-V Materials …

Amorphous Alloys Containing Cobalt for Orthopaedic Applications

November 1, 1998
Author(s)
John A. Tesk, C E. Johnson, Drago Skrtic, Ming S. Tung, Stephen M. Hsu
… may make them useful for wear resistant applications. Cobalt-based, electrodeposited alloys may be particularly … Conference Handout for ASTM Special Symposium Cobalt-Base Alloys for Biomedical Applications, ASTM STP 1365 … Amorphous Alloys Containing Cobalt for Orthopaedic Applications …

Supramolecular Hemicage Cobalt Mediators for Efficient and Stable Dye-Sensitized Solar Cells

October 11, 2016
Author(s)
Lisa A. Fredin, Marina Freitag, Wenxing Yang, Luca D' Amario, K. Martin Karlsson, Anders Hagfeldt, Gerrit Boschloo
… A new class of DSCs using the hemicage cobalt based mediator [Co(ttb)] 2+/3+ using the hexadentate … dye-sensitized, density functional theory, cobalt, photovoltaic … Supramolecular Hemicage Cobalt Mediators for Efficient and Stable Dye-Sensitized …

Evaluation of Variations in Solution Annealing, Intercritical Annealing, and Aging Treatments on Cobalt-free Maraging Steels

September 22, 2025
Author(s)
Nicholas Derimow, Jake Benzing, Alec Saville, Cassidy Allen, Jordan Weaver, Nikolas Hrabe, Timothy Quinn, Timothy Weeks, Newell Moser, Chad Beamer, Christin Aumayr, Tilman Seifert, Michael Hirtler
… of the quasi-static mechanical properties of a novel cobalt-free maraging steel, M789, that underwent a series of … Additive Manufacturing, Cobalt-free Maraging Steels, Heat Treatments, Laser Powder … Intercritical Annealing, and Aging Treatments on Cobalt-free Maraging Steels …

Measurement and Correlation of the Thermal Conductivity of trans-1-Chloro-3,3,3-trifluoropropene (R1233zd(E))

March 29, 2017
Author(s)
Richard A. Perkins, Marcia L. Huber, Marc J. Assael
… New experimental data on the thermal conductivity of trans-1-chloro-3,3,3-trifluoropropene (R1233zd(E)) are … correlation, R1233zd(E), refrigerant, thermal conductivity, trans-1-chloro-3, 3, 3- trifluoropropene, transient hot wire. … Measurement and Correlation of the Thermal Conductivity of trans-1-Chloro-3,3,3-trifluoropropene (R1233zd(E)) …

Production, purification and characterization of 15N5-labeled cis- and trans-aflatoxin B1-formamidopyrimidines, and aflatoxin B1-N7-guanine as internal standards for mass spectrometric measurements

April 11, 2023
Author(s)
Pawel Jaruga, Melis Kant, Miral M. Dizdar, Rachana Tomar, Vladimir Vartanian, Benjamin Sexton, Carmelo Rizzo, Robert Turesky, Michael Stone, R. Stephen Lloyd
… turn reacts with N7-guanine in DNA producing the cationic trans-8,9-dihydro-8-(N7-guanyl)-9-hydroxyaflatoxin B1 adduct … conditions causes the formation of the cis- and trans-diastereomers of … measurements. AFB1-N7-Gua-15N5, cis-AFB1-FapyGua-15N5 and trans-AFB1-FapyGua-15N5 have been synthesized and used …

International Key Comparison of Neutron Fluence Measurements in Monoenergetic Neutron Fields CCRI(III)-K11

November 3, 2014
Author(s)
Maynard S. Dewey, V. Gressier, A. C. Bonaldi, David M. Gilliam, H. Harano, A. Masuda, T Matsumoto, N. Moiseev, Jeffrey S. Nico, R. Notle, S. Oberstedt, N. J. Roberts, S. Rottger, D. J. Thomas
… comparisons. In the area of neutron metrology, Section III of the Consultative Committee for Ionizing Radiation is … to October 2012, the eleventh key comparison, named CCRI(III)-K11, took place at the AMANDE facility of the LNE-IRSN, … CCRI(III), mono-energetic neutron fields, neutron fluence, neutron …

High Accuracy OH Reaction Rate Constants of CH2=CF-CF3 and trans-CHF=CF-CF3 and IR Absorption Spectra

April 29, 2010
Author(s)
Vladimir L. Orkin, Larissa E. Martynova, Alexander N. Ilichev
… two isomers of tetrafluoropropene, CH2=CF-CF3 (k1) and trans-CHF=CH-CF3 (k2); were measured using a flash photolysis … GWP, greenhouse effect, 2, 3, 3, 3-tetrafluoropropene, trans-1, 3, 3, 3-tetrafluoropropene, C3H2F4. … High Accuracy OH Reaction Rate Constants of CH2=CF-CF3 and trans-CHF=CF-CF3 and IR Absorption Spectra …

Autonomous Mobility for the Demo III Experimental Unmanned Vehicles

July 1, 2002
Author(s)
Alberto Lacaze, Karl Murphy, M DelGiono
… controller used under the U.S. Army sponsored Demo III eXperimental Unmanned Vehicle (XUV) project. The … plan and re-plan their own routes, speed and gaze. Demo III XUVs have been thoroughly tested on scouting scenarios by … Autonomous systems, cable robotics, cable robotics, Demo III, Demo III, Demo III, embedded systems, embedded systems, …

Correlations for the Viscosity of 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf) and trans-1,3,3,3-Tetrafluoropropene (R1234ze(E))

September 20, 2016
Author(s)
Marcia L. Huber, Marc J. Assael
… such HFO’s are 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf) and trans-1,3,3,3-Tetrafluoropropene (R1234ze(E)). To assist … 2, 3, 3, 3-Tetrafluoroprop-1-ene, trans-1, 3, 3, 3-Tetrafluoropropene, correlation, R1234yf, … Viscosity of 2,3,3,3-Tetrafluoroprop-1-ene (R1234yf) and trans-1,3,3,3-Tetrafluoropropene (R1234ze(E)) …
Displaying 1 - 25 of 1340
Was this page helpful?