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Aaron Rowane, Ian Bell, Marcia L. Huber, Richard A. Perkins
A total of 2160 thermal conductivity data points, measured using a transient hot-wire instrument, are reported for binary mixtures of R-134a, R-1234yf, and R-1234ze(E) refrigerants from 200 to 340 K to pressures of 12 MPa for mixtures containing R-1234yf
For hydrogen-deuterium exchange mass spectrometry (HDX-MS) to have an increased role in quality control of biopharmaceuticals, H for D back-exchange occurring during protein analyses should be minimized to promote greater reproducibility. Standard HDX-MS
Johannes W. Osterreith, James Rampersad, David Madden, Nakul Rampal, Luka Skoric, Bethany Connolly, Rob Ameloot, Joao Marreiros, Conchi Ania, Diana Azevedo, Enrique VilarrasaGarcia, Bianca Santos, Daniel Siderius
Porosity and surface area analysis plays a prominent role in modern materials science, where their determination spans the fields of natural sciences, engineering, geology and medical research. At the heart of this sits the Brunauer-Emmett-Teller (BET)
Andrei F. Kazakov, Eugene Paulechka, Robert D. Chirico
Measurements leading to the calculation of thermodynamic properties in the ideal-gas state for 9-methylanthracene (Chemical Abstracts registry number [779-02-2]) are reported. Experimental methods were adiabatic heat-capacity calorimetry, differential
Andrei F. Kazakov, Eugene Paulechka, Robert D. Chirico
Measurements leading to the calculation of thermodynamic properties in the ideal-gas state for 3-methylphenanthrene (Chemical Abstracts registry number [832-71-3]) are reported. Experimental methods were adiabatic heat-capacity calorimetry, differential
Kyle Anderson, Kerry Scott, Christina Bergonzo, Ioannis Karageorgos, Elyssia Gallagher, Venkata Tayi, Michael Butler, Jeffrey W. Hudgens
Previous reports present different models for the stabilization of the Fc—FcγRI immune complex. Although accord exists on the importance of L235 in IgG1 and some hydrophobic contacts for complex stabilization, discord exists regarding the existence of
The efficient protocol for estimation of gas-phase enthalpies of formation developed previously for C, H, O, N, and F elements was extended to sulfur. The protocol is based on local coupled-cluster with single, double, and perturbative triple excitations
Eisenbach Tim, Christian Scholz, Roland Span, Diego Cristancho, Monika Thol, Eric W. Lemmon
A fundamental equation of state was developed for propylene glycol. It is written in terms of the Helmholtz energy with the independent variables temperature and density. Due to its fundamental nature, it can be used to calculate all thermodynamic state
Ala Bazyleva, Jens Abildskov, Andre Anderko, Olivier Baudouin, Yury Chernyak, Jean-Charles de Hemptinne, Vladimir Diky, Ralf Dohrn, J. R. Elliott, Johan Jacquemin, Jean-Noel Jaubert, Kevin Joback, Ursula Kattner, Georgios Kontogeorgis, Herbert Loria, Paul M. Mathias, John O'Connell, Wolffram Schroer, G. J. Smith, Ana Soto, Shu Wang, Ronald D. Weir
Scientific projects frequently involve measurements of thermophysical, thermochemical, and other related properties of chemical compounds and materials. These measured property data have significant potential value for the scientific community, but
The experimental vapor-liquid equilibrium (VLE) data for the binaries relevant to the catalytic fast pyrolysis of biomass have been collected and analyzed using the NIST-COSMO-SAC and NIST-modified UNIFAC models. The existing inconsistencies in the
Combustion calorimetry is the predominant method for determination of enthalpies of formation for organic compounds. Both initial and nal states of the calorimeter deviate signi cantly from the standard conditions. Correction of the obtained results to the
Werickson Fortunato de Carvalho Rocha, Cary Presser, Shannon Bernier, Ashot Nazarian, David Sheen
Multivariate calibration methods were evaluated using the measured thermal signatures of 11 diesel/biodiesel fuel blends (including 4 repeated runs for each fuel blend). Two National Institute of Standards and Technology standard-reference-material (SRM)
Ala Bazyleva, Yauheni Paulechka, Dzmitry H. Zaitsau, Andrey V. Blokhin, Gennady J. Kabo
Heat capacities of antiviral drug rimantadine hydrochloride in the crystalline state were measured by adiabatic calorimetry and differential scanning calorimetry in the temperature range from (7 to 453) K. A broad low-enthalpy solid-state phase anomaly was
Howard Cheung, Jerome Frutiger, Ian Bell, Jens Abildskov, Gurkan Sin, Shengwei Wang
This work presents a detailed methodology for uncertainty analysis applied to a reference equation of state (EOS) based on Helmholtz energy. With increasing interest in uncertainties of thermal process models, it is important to quantify the property
A fundamental knowledge of the unidirectional growth mechanisms is required for precise control on size, shape, and thereby functionalities of nanostructures. Using transmission electron microscopy that spatially and temporally resolves CuO nanowire growth
Accurate enthalpies of formation of hydrofluoric acid in the gas and liquid states as well as in aqueous solutions are critical for reduction and interpretation of combustion calorimetry data for fluorinated compounds. Analysis of current recommendations
Thomas J. Bruno, Tara Fortin, Marcia L. Huber, Arno D. Laesecke, Eric Lemmon, Elisabeth Mansfield, Mark O. McLinden, Stephanie L. Outcalt, Richard A. Perkins, Kimberly N. Urness, Jason A. Widegren
This report summarizes the results of work performed for the Naval Air Warfare Center Aircraft Division by the National Institute of Standards and Technology (NIST), Applied Chemicals and Materials Division on the properties of polyol ester lubricants
Ian H. Bell, Piotr A. Domanski, Gregory T. Linteris, Mark O. McLinden
We investigated refrigerant blends as possible low GWP (global warming potential) alternatives for R-134a in an air-conditioning application. We carried out an extensive screening of the binary, ternary, and four-component blends possible among a list of
Yangyang Zhao, Kalisadhan Mukherjee, Kurt D. Benkstein, Libin Sun, Kristen L. Steffens, Christopher B. Montgomery, Stephen Semancik, Mona Zaghloul
The present work demonstrates development of a miniaturized plasmonic platform comprised of a Au nanohole array (NHA) on a Si/Si3N4 substrate. Plasmonic responses of the NHA platform, which is coated with Cu-benzenetricarboxylate metal organic framework
William Sean McGivern, Iftikhar A. Awan, Jeffrey A. Manion
Single pulse shock tubes are effective tools for measuring chemical kinetics at high temperatures, typically (900–1400) K. However, the use of a diaphragm for shock generation leads to significant shock-to- shock inconsistencies in temperature for a
Ian H. Bell, Jonathan Welliquet, Maria Mondejar, Sylvain Quoilin, Ala Bazyleva, Frederik Haglind
The search of new refrigerants complying with the most recent environmental regulations must be supported by the availability of simple and reliable models for the prediction of their thermophysical behavior, both as pure substances and as mixtures. Cubic
Sarah M. Robinson, Zuliang Shen, Jon R. Askim, Christopher B. Montgomery, Herman O. Sintim, Stephen Semancik
Development of technologies for rapidly screening the thermal stability of DNA secondary structures and the effects on stability for binding of small molecule drugs is important to the drug discovery process. In this report, we describe the capabilities of
Thermophysical property data are frequently affected by experimental and other errors significantly exceeding expected uncertainties, and validation of them is important when reliable values are needed. The methods used at Thermodynamics Research Center