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proficiency testing

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Journal Article
Published: 01 May 2003
Quarterly Journal of Engineering Geology and Hydrogeology (2003) 36 (2): 133-142.
... out by TRL Limited and the University of Sheffield for the Highways Agency that aimed to develop better test methods for sulphur compounds in structural backfills. Advances in chemical test methods such as direct determination of sulphur by ICP-AES and novel methods of extraction have been...
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Journal Article
Published: 01 June 2016
Journal of Environmental and Engineering Geophysics (2016) 21 (2): 57-65.
... fluctuate, altering soil properties. Operator proficiency and survey methodology will also influence GPR findings. Therefore, GPR equipment performance evaluation involves standardized tests that are frequently conducted indoors within laboratory-controlled environments. This study uses outdoor United...
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Journal Article
Published: 01 January 2003
Environmental and Engineering Geoscience (2003) 9 (1): 51-69.
...) to demonstrate the proficiency of steam flooding in the geologic environment at SRS and to determine the feasibility of the process for the remediation of the M-Area settling basin. A multiphase flow numerical simulator was used to predict heating patterns of the steam flood at the solvent storage tank area...
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Series: GSA Memoirs
Published: 01 January 1992
DOI: 10.1130/MEM180-p43
... One of the most knowledgeable stratigraphers during the first half of the twentieth century was Amadeus William Grabau (1870 to 1946), whose prolific career included wide experience in North America, Europe, and Asia. He was both a proficient field geologist capable of generating his own...
Journal Article
Journal: The Leading Edge
Published: 01 October 2015
The Leading Edge (2015) 34 (10): 1198-1204.
... of geosciences outreach targeting Houston-area schoolchildren. Individuals also volunteer in local K-12 classrooms, math and science clubs, science museums, and general public science events and assist Boy Scouts and Girl Scouts earning geology merit/proficiency badges. The common goal is to inspire some...
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Journal Article
Journal: Paleobiology
Published: 01 January 2005
Paleobiology (2005) 31 (4): 676-701.
... be expected in a proficient runner. The information provided by the model is important for determining how T. rex stood and walked, and how the muscles of a 4000–7000 kg biped might have worked in comparison with extant bipeds such as birds and humans. Our model thus strengthens the conclusion that T. rex...
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Series: AAPG Memoir
Published: 01 January 2016
DOI: 10.1306/13561993M1113676
EISBN: 9781629812779
... Abstract Interpretation of faulted reservoirs is hindered by an industry-wide lack of structural specialists, which in turn hinders the development of structurally proficient interpreters. This can have expensive consequences, including poor models of dynamic flow in reservoirs, erroneous...
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Journal Article
Published: 28 September 2017
Quarterly Journal of Engineering Geology and Hydrogeology (2017) 50 (4): 438-443.
... Publishing Company, Dubuque, Iowa . Lowe , J.S. 2011 . The Proficiency of Sand Equivalent and Methylene Blue Test Methods for Determining the Deleterious Mineral Content of Manufactured Sands in New Zealand . Master thesis, The University of Auckland , Auckland, New Zealand . Moore , D.M...
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Journal Article
Published: 01 May 2014
Quarterly Journal of Engineering Geology and Hydrogeology (2014) 47 (2): 169-176.
... . Engineering Geology , 31 , 353 – 368 . Lowe J.S. . 2010 . The Proficiency of Sand Equivalent and Methylene Blue (Clay Index) Test Methods for Determining the Deleterious Mineral Content of Weakly Metamorphosed Sedimentary Rock . Road & Transport Research: A Journal of Australian...
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Journal Article
Published: 01 November 2003
Geochemistry: Exploration, Environment, Analysis (2003) 3 (4): 337-343.
...Y.T. John Kwong; George W. Swerhone; John R. Lawrence Abstract Following a brief review of the theoretical aspects of galvanic sulphide oxidation, the significance of galvanic interaction in the oxidation of natural mixed sulphide assemblages is demonstrated using test materials prepared from...
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Journal Article
Published: 01 August 2004
Vadose Zone Journal (2004) 3 (3): 747-762.
...Stefan Finsterle Abstract Calibration of a numerical process model against laboratory or field data is often referred to as “inverse modeling.” As the numerical simulation models become more complex, the number of parameters to be estimated generally increases, requiring new testing, modeling...
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Series: Special Publications of the Society of Economic Geologists
Published: 01 January 2005
DOI: 10.5382/SP.12.09
EISBN: 9781629490366
... to a classification and analysis system of underlying personality types, similar to that initially proposed by Carl Jung. Specially, a modified Myers-Briggs test was used here. Results from these tests show that people joining the minerals industry do not reflect the full range of personality types present...
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Series: AAPG Memoir
Published: 01 January 2016
DOI: 10.1306/13561983M1113668
EISBN: 9781629812779
... the properties of the skill. For example, which populations employ these spatial skills and what individual factors influence the use of these spatial skills. By measuring , we mean to outline the different types of tests and tasks that have been used to quantify the skill. By training , we mean the types...
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Journal Article
Published: 01 November 2003
American Mineralogist (2003) 88 (11-12): 1979-1982.
... and n γ can be quickly determined with a reasonable accuracy (±0.005 to 0.010) in a single oil mount during routine analysis. However, when higher accuracy is desirable, e.g., when analyzing the Proficiency Testing samples administered by NVLAP, n α and n γ can be separately determined using two...
Journal Article
Published: 01 August 2012
American Mineralogist (2012) 97 (8-9): 1269-1273.
... microscope (SEM) equipped with an energy-dispersive X-ray spectrometer (EDS) and an electron backscatter diffraction system (EBSD). This technique could have important applications in the identification of inhalable particulate material. A simple test is presented to show how SEM/EDS/EBSD data are used...
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Journal Article
Journal: Geophysics
Published: 21 August 2017
Geophysics (2017) 82 (6): S403-S409.
... the artifacts created in the angle range of 61°–90°, is able to preserve the crosscorrelation from the reflecting points for the aforementioned angle range. Finally, the proficiency of our imaging condition for the RTM was tested using the synthetic BP 2004 model and a real data set for the North Sea...
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Journal Article
Journal: Interpretation
Published: 22 May 2015
Interpretation (2015) 3 (3): SS49-SS64.
... (stacking pattern) of the thin-bed sequence. A field-data test confirmed that within a stratigraphic interval of a composite seismic event ( λ / 4 or 15 m) at least two, and possibly three, thin fluvial channel sandstones (2–6 m each) could be identified and their spatial localities and distribution could...
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Journal Article
Journal: AAPG Bulletin
Published: 01 April 2013
AAPG Bulletin (2013) 97 (4): 553-576.
... uncertainty in geomodels, data on dunes, unit bars, cross-bar channels, and compound bars and their associated deposits are presented herein from the sand-bed braided South Saskatchewan River, Canada. These data are used to test models that relate the scale of the formative bed forms to the dimensions...
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Journal Article
Journal: Geophysics
Published: 07 July 2005
Geophysics (2005) 70 (4): 7JA-30JA.
...Enders A. Robinson Abstract The beginning of digital signal processing took place in the years 1950 to 1954. Using an econometric model, E. A. Robinson in 1951 came up with the method of deconvolution, which he tested on 32 seismic traces. Norbert Wiener, George Wadsworth, Paul Samuelson...
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Journal Article
Published: 01 August 2014
Geochemistry: Exploration, Environment, Analysis (2014) 14 (3): 291-301.
... of obsidian and flint. Data obtained with our method can readily be compared to bulk chemical data obtained with many other methods. Our laboratory participates in twice yearly proficiency testing designed to identify laboratory biases, which is standard practice in the geosciences ( International Association...
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