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Author: stefan leigh

Displaying records 71 to 80 of 81 records.
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71. Certification of K-411 glass microspheres with electron probe microanalysis
Published: 8/6/1995
Authors: S V. Roberson, Ryna B. Marinenko, J S Small, Douglas H. Blackburn, D Kauffman, Stefan D Leigh

72. A Method for the Preparation of NIST Traceable Fossil Fuel Standards With Concentrations Intermediate to SRM Values: Coal and Coke
Series: Special Publication (NIST SP)
Report Number: 1074
Published: Date unknown
Authors: William R. Kelly, Bruce S MacDonald, Stefan D Leigh

73. A Method for the Preparation of NIST Traceable Fossil Fuel Standards With Concentrations Intermediate to SRM Values: Middle Distillates
Series: Special Publication (NIST SP)
Report Number: 260-167
Published: Date unknown
Authors: William R. Kelly, Bruce S MacDonald, Stefan D Leigh

74. A Statistical Technique for Increasing the Size Range of a Phase Doppler Interferometer
Published: Date unknown
Authors: J F. Widmann, S R. Charagundla, Cary Presser, Stefan D Leigh
Abstract: Since its introduction, phase Doppler interferometry (PDI) has been used to characterize sprays in areas such as liquid fuel spray combustion, coal slurry combustion, coatings, pesticides, fire suppression, and others. PDI is an extension of laser D ...

75. Characterization of Chemical Properties, Unit Cell Parameters and Particle Size Distribution of Three Zeolite Reference Materials: RM 8850 - Zeolite Y, RM 8851 - Linde Type A Zeolite and RM 8852 - Ammonium ZSM-5 Zeolite
Published: Date unknown
Authors: Shirley Turner, Robert A Fletcher, Eric S Windsor, Jennifer R Verkouteren, John R Sieber, Thomas W Vetter, Rolf Louis Zeisler, Anthony F Marlow, M E Davis, G J Kennedy, W S Borghard, S Yang, A Navrotsky, B H. Toby, James F Kelly, Stefan D Leigh
Abstract: Zeolites have important industrial applications including use as catalysts, molecular sieves and ion exchange materials. In this study, three zeolite materials have been characterized by the National Institute of Standards and Technology (NIST) as R ...

76. Determination of Sulfur In Fossil Fuels: User Prepared Standards With Concentrations And Uncertainties Traceable to NIST Values
Published: Date unknown
Authors: William R. Kelly, Bruce S MacDonald, Stefan D Leigh
Abstract: A procedure is presented whereby, the fossil fuel SRM user community could mix SRMs in different proportions and thereby, produce in their laboratory CRMs for sulfur in distillate fuel oil, residual fuel oil, and coal of almost any desired concentrat ...

77. Inter-comparison Example
Published: Date unknown
Authors: Adriana Hornikova, Maritoni Abatayo Litorja, Stefan D Leigh, J B Fowler
Abstract: This paper overviews results from Consultative Committee on Photometry and Radiometry (CCPR) the Supplementary Comparison S2. It details measurement and analysis of aperture areas involving 9 laboratories using 8 distinct artifacts, each having a dif ...

78. Phase Analysis of Hydraulic Cements by X-Ray Powder Diffraction: ASTM Precision, Bias, and Qualification
Published: Date unknown
Authors: Paul E Stutzman, Stefan D Leigh
Abstract: Cements classification is based, in part, upon phase composition. Traditionally, estimates of composition have been made using bulk chemical analyses and the Bogue calculations that were developed over 75 years ago. Since their introduction, these ca ...

79. Relationship Between Quantitative Dispersion and Physical Properties of PMMA/SWNT Nanocomposites
Published: Date unknown
Authors: Takashi Kashiwagi, Jeffrey A Fagan, Keith Yamamoto, A N Heckert, Stefan D Leigh, Jan Obrzut, F Du, Sheng Lin-Gibson, Minfang Mu, K Winey, R Haggenmueller, Jack F Douglas
Abstract: Six PMMA/SWNT(0.5 wt%) nanocomposite samples intended to have different dispersion levels were prepared by the coagulation method using six different concentrations of SWNTs in DMF from 0.05 mg/ml to 1.2 mg/ml. The morphology of the samples was deter ...

80. The {tau}-Effective Paradox Revisited: An Extended Analysis of KovacsVolume Recovery Data on Poly (Vinyl Acetate)
Published: Date unknown
Authors: G B. McKenna, M Vangel, Andrew L Rukhin, Stefan D Leigh, B Lotz, C Straupe
Abstract: In 1964 Kovacs (A.J. Kovacs, Transition vitreuse dans les polymeres amorphes. Etude phenomenologique, Fortschr. Hochpolym.-Forsch., 3, 394-507 (1964)) published a paper in which he analyzed structural (volume) recovery data in asymmetry of approach ...

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