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2 edition of apparatus for rapid and precise surface area measurements of unconsolidated geologic materials found in the catalog.

apparatus for rapid and precise surface area measurements of unconsolidated geologic materials

R. M. Ray

apparatus for rapid and precise surface area measurements of unconsolidated geologic materials

by R. M. Ray

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  • 7 Currently reading

Published by Dept. of Energy, Technical Information Center, for sale by the National Technical Information Service in [Oak Ridge, Tenn.], Springfield, Va .
Written in English

    Subjects:
  • Thermoelectric apparatus and appliances.

  • Edition Notes

    Statementby R. M. Ray and T. C. Wesson ; Bartlesville Energy Technology Center.
    SeriesBETC/RI ; 78/8
    ContributionsWesson, T. C., United States. Dept. of Energy. Technical Information Center., Bartlesville Energy Research Center.
    The Physical Object
    Pagination14 p. :
    Number of Pages14
    ID Numbers
    Open LibraryOL17647500M

    Equipment and costs. Physical measurement of landslide volume, velocity, and distance of movement may be obtained using a variety of equipment, and costs depend on the size and depth of the landslide. Drilling of landslides can be expensive, and measuring the scale of the landslide surface area using tapes or GPS equipment is more direct.   The surface gas permeability was also measured using TinyPerm II developed by New England Research, Inc. This is a handheld (∼ kg, 38 cm × cm × 5 cm), portable device (Fig. 2a) that measures surface permeability data in the field (Fig. 2b) as well as in a laboratory device has been used by other researchers, e.g. Rogiers et al. on soils and Filomena et al. on sandstone.

    Abstract The particle size distribution, surface area and shape are fundamental characteristics of supple-mentary cementitious materials (SCMs). Accurate measurement of these properties is required in com-putational efforts to model the hydration process, and the characterization of these parameters is also an.   The Chromatic Focus Point sensor (CFP) can measure dimensional, shape, and positional deviations at high point density. A large measurement range, up to 6 mm, allows for rapid scanning, as the sensor does not need to track along the surface in order to maintain contact.

    Quantachrome Instrument’s contract lab, LabQMC, offers analytical services for BET surface area measurements by gas adsorption. Surface areas in the range from m 2 /g to no known upper limit can be accurately measured. Surface area is typically calculated from nitrogen adsorption measurements, or, in the case of very low surface areas. Love wave (11) a surface seismic wave, with horizontal motion, that develops in relatively weak (e.g., unconsolidated) materials at surface. luvisol (5) a cold climate forest soil formed in which clay has been removed from the A horizon and relocated into the B horizon. M. Ma (1) (Megaannus) millions of years before the present.


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Apparatus for rapid and precise surface area measurements of unconsolidated geologic materials by R. M. Ray Download PDF EPUB FB2

Get this from a library. An apparatus for rapid and precise surface area measurements of unconsolidated geologic materials. [R M Ray; T C Wesson; United States. Department of Energy. Technical Information Center.; Bartlesville Energy Research Center.].

The amounts of nitrogen adsorbed at liquid nitrogen temperatures on the surface of test samples was measured by the apparatus which contained a thermal conductivity detector.

The Brunauer, Emmett, and Teller (BET) equation was then used to calculate the surface area of each test sample. In analyzing unconsolidated soil samples the instrument displayed a precision of about % for single point Author: R. Ray, T. Wesson. An apparatus for rapid and precise surface area measurements of unconsolidated geologic materials / by R A new thermoelectric phenomenon / by W.

Huey Steele; Thermoelectricity; including the proceedings of the Conference on Thermoelectricity, September, Final technical progress report for the development of advanced thermoelectric materials [microform]: 1 An apparatus for rapid and precise surface area measurements of unconsolidated geologic materials / by R A new thermoelectric phenomenon / by W.

Huey Steele. An apparatus for rapid and precise surface area measurements of unconsolidated geologic materials / by R Applications of linear integrated circuits / Eugene R.

Hnatek Explore. An apparatus for rapid and precise surface area measurements of unconsolidated geologic materials / by R A new thermoelectric phenomenon / by W. Huey Steele Thermoelectricity; including the proceedings of the Conference on Thermoelectricity, September,   However, a variety of advanced equipment can also be used to sense stage and measure streamflow.

In the simplest method, a current meter turns with the flow of the river or stream. The current meter is used to measure water velocity at predetermined points (subsections) along a marked line, suspended cableway, or bridge across a river or stream.

where K is the permeability (mD), \(S_{\text{wr}}\) represents the residual water saturation (%), \(S_{\text{s}}\) represents for the specific surface area (1/cm), and \(\emptyset\) is the porosity.

Fatt and Kumar studied the porosity, permeability and surface area of unconsolidated porous media under dynamic conditions by using NMR spectrometry. They found a linear relationship between. Streaming potential measurements have been widely used to characterize charged materials such as membranes (Lawrence et al.

;Xie et al. ), hollow fibers (Lanteri et al. ), natural. Surface resistivity ρs, on the other hand, is deter-mined by the ratio of DC voltage U drop per unit length L to the surface current Is per unit width D. ρs = U L Is D (2) L D U electrodes material Figure 1: Basic setup for surface resistance and surface resistivity measurement.

Surface. Surface area calculations were made by adapting eq. 1 to the Blaine pro- cedure: a = (gcAOAP/kpLQ)ll2 [e3/(e)2 ]u2 (21) If the mean pressure drop and total volume of air passed during the timed 71 Precision bore ~Plunger sample cell~tU~Sample Gloss monometer~ ~pcock J~ To aspirator bulb Manometer fluid Fig.

The surface area of materials, particularly powdered porous materials, is an extremely important property due to its role in the bioavailability of pharmaceuticals, the dispersion of dyes, the adsorption capacity of carbon, and many more applications.

Within a surface area analyzer, a sample is placed in a sealed chamber. Reference surface is the base for the scale-limited surface and represents the plane at the mean height of the evaluation area as per the ISO Surface Texture function.

Evaluation area Evaluation area is the portion of the scale-limited surface that is subject to evaluation. Definition area. Surface area plays an important role in many soil processes including contaminant adsorption, water retention, and chemical reactions. The specific surface area of soil and soil constituents can.

Relationship between the surface area and the X-ray crystallite size for thorium oxides. Journal of Colloid and Interface Science70 (1), DOI: /(79) Equipment is readily available, portable, and nonintrusive, and seismic measurements have good resolution and provide relatively rapid coverage of a large area.

Use. A linear array of geophones (a recording device used to convert velocity into voltage) is typically established along the ground surface. Procedures and Examples for Rapid Drawdown. EM 31 Oct 03 Chapter 1 Introduction information and information regarding in situ engineeri ng properties of soil and rock materials.

The geologic materials along the potential failure surface are governed by linear (Mohr-Coulomb) or. This chapter covers the details on the analysis and measurement of surface roughness.

Analysis of Surface Roughness Surface texture is the repetitive or random deviation from the nominal surface that forms the three-dimensional topography of the surface. Surface texture includes (1) roughness (nano. The quantitative determination of surface roughness is of vital importance in the field of precision engineering.

This paper presents an experimental study of the roughness analyses for the flat and spherical surfaces of machined metal in order to compare the roughness data taken from the cloud data produced by the stylus type profilometer and two optical-based measurement instruments.

The outgassing conditions are critical for obtaining the required precision and accuracy of specific surface area measurements on pharmaceuticals because of the sensitivity of the surface of the materials.

Then the sample tube is attached to the volumetric apparatus. The sample is cautiously evacuated down to the specified pressure (e.g.

The electrical resistivity of a material is a measure of the difficulty of conducting electrical current, and is a complex function of textural properties, surface conductance effects of clays.to measure with accuracy and precision for length scales varying from the diameter of a grain of sand to the height of a story building (W ebb ).

Not only is mercury porosimetry.Nuclear magnetic resonance (NMR) measurements are controlled by rock parameters such as the surface-area to pore-volume ratio S/V.

NMR is available for in-situ measurements.