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11. Dielectric characterization by microwave cavity perturbation corrected for non-uniform fields
Topic: Chemistry
Published: 7/23/2014
Authors: Nathan Daniel Orloff, Jan Obrzut, Christian John Long, Thomas Fung Lam, James C Booth, David R Novotny, James Alexander Liddle, Pavel Kabos
Abstract: The non-uniform fields that occur due to the slot in the cavity through which the sample is inserted and those due to the sample geometry itself decrease the accuracy of dielectric characterization by cavity perturbation at microwave frequencies. ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915011

12. Activation Energies of High-Volume Fly Ash Ternary Blends: Hydration and Setting
Topic: Chemistry
Published: 7/17/2014
Author: Dale P Bentz
Abstract: Because ready-mixed concrete is placed under a wide variety of environmental conditions, the influence of temperature on the hydration reactions and the accompanying setting (hardening) process is of critical importance. While contractors are general ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914612

13. Anticipating the Setting Time of High-Volume Fly Ash Concretes Using Electrical Measurements: Feasibility Studies Using Pastes
Topic: Chemistry
Published: 7/17/2014
Authors: Dale P Bentz, Kenneth Alan Snyder, Amzaray M Ahmed
Abstract: One common concern limiting the proliferation of high-volume fly ash (HVFA) concrete mixtures is the significant delay in setting that is sometimes encountered in field concrete mixtures. While several methods to mitigate the delayed setting times of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914999

14. Uncertainty in Bogue-Calculated Phase Composition of Hydraulic Cements
Topic: Chemistry
Published: 7/1/2014
Author: Paul E Stutzman
Abstract: The Bogue calculations of cement composition are used for manufacturing process control and cement classification. While it is commonly understood that the Bogue calculations are estimates with potential intrinsic biases, the magnitudes of such bia ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914762

15. Measuring Freeze and Thaw Damage in Mortars Containing Deicing Salt Using a Low Temperature Longitudinal Guarded Comparative Calorimeter and Acoustic Emission (AE-LGCC)
Topic: Chemistry
Published: 6/23/2014
Authors: Yaghoob Farnam, Dale P Bentz, Aaron Richard Sakulich, Daniel Robert Flynn, Jason Weiss
Abstract: Deicing salts are often applied to the surface of pavements and bridge decks in the winter to melt ice; thereby improving safety for the travelling public. In this paper, the influence of NaCl deicing salt on freezing and thawing temperatures of pore ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913946

16. Transport Properties of Fluids near Critical Points
Topic: Chemistry
Published: 6/5/2014
Authors: Jan Vincent Sengers, Richard A Perkins
Abstract: This chapter reviews the currently available information concerning the behavior of transport properties near the vapor-liquid critical point of fluids and fluid mixtures. Special attention is devoted to the behavior of the thermal conductivity which ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913373

17. Computer-Assisted Quality Control for Building Libraries from Electrospray Ionization Tandem Mass Spectra
Topic: Chemistry
Published: 6/4/2014
Authors: Xiaoyu Yang, Pedatsur Neta, Stephen E Stein
Abstract: Electrospray ionization (ESI) tandem mass spectrometry coupled with liquid chromatography is a routine technique for identifying and quantifying compounds in complex mixtures. The identification step can be aided by matching acquired tandem mass ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915314

18. Clemens von Sonntag and the early history of radiation-induced sugar damage in DNA
Topic: Chemistry
Published: 6/2/2014
Author: M Miral Dizdar
Abstract: This article reviews the early history of radiation-induced sugar damage in DNA in dedication to Prof. Clemens von Sonntag, who recently passed away. It covers the ten years between 1968 and 1978, during which most of the work on the ionizing radiati ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915276

19. The ABCs of Using Standard Reference Materials in the Analysis of Foods and Dietary Supplements: A Practical Guide
Series: Special Publication (NIST SP)
Report Number: 260-181
Topic: Chemistry
Published: 6/2/2014
Authors: Katherine E Sharpless, David Lee Duewer, Katrice A Lippa, Andrew L Rukhin
Abstract: Although ,nutraceuticals‰ and ,functional foods‰ seem to be ill-defined terms, both are often used to indicate a food that contains compounds providing benefits beyond basic nutrition, often with the expectation that these compounds are protectiv ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912374

20. Measurement of pHT Values of Tris Buffers in Artificial Seawater at Varying Mole Ratios of Tris:Tris·HCl
Topic: Chemistry
Published: 5/20/2014
Author: Kenneth W Pratt
Abstract: Measurements of total pH, pHT, in electrochemical cells without transference are reported for 2 amino-2-hydroxymethyl 1,3-propanediol (,Tris‰) buffers in synthetic seawater (SSW) of salinity 35 at three molality ratios of Tris to Tris,HCl: 0.03:0.05, ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914253



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