Content evaluation

Clay content evaluation Some formations may contain nonclayey radioactive materials. Then the curve GR-U or GR-K may give a better clay content estimate. 

The coal residue was separated into a THF-soluble fraction and a THF-insoluble residue. The wt % yields and atom % 2H compositions are given in Table I. The coal residue was 6 wt % soluble in tetrahydrofuran. The soluble fraction had 23 atom % 2H content. Evaluation of the 2H NMR data showed that 85 wt % of this fraction was derived from the coal and that its deuterium content was 10%. The chemically-bonded naphthalene-d8 content of the THF-soluble fraction, estimated from the 2H NMR data, was about 15 wt % or approximately 1 wt % of the coal. The insoluble residue had 6 atom % 2H content. This indicates that the residue contained approximately 1 wt % chemically-bonded naphthalene which was estimated from the difference in the atom % 2H content of the insoluble residue and recovered naphthalene-d8. This gives a total chemically-bonded naphthalene-d8 content of approximately 2 wt %. Similar results were obtained in extraction experiments made with phenanthrene (30), where it was found that 3-7 wt % of the phenanthrene was chemically linked to the coal product. 

MgO, and sulfur and phosphorus content. In some operations high-grade ore is selectively mined, hand sorted and screened, and sold as lump and fines. More commonly the high-grade lump material is removed by hand, and the reminder is crushed and ground before beneficiation. LIBS may be used for chromite sorting and Mg, Al, Si contents evaluation (Fig. 8.12). 

X-ray excited steady-state luminescence has been checked as a distinctive feature for the phosphorites, Karatau (Gorobets et al. 1997a). Sedimentary apatite (francolite) is not luminescent under X-ray excitation and red Mn " luminescence of dolomite was employed. As a result, concentration of MgO in the accepted fraction was lowered from 5.0% to 2.4%. The use of this method is limited because in many cases the X-ray luminescence of dolomite is very low or non-existent. Besides that, other minerals without luminescence come together with the accepted phosphate fraction, including sihceous shale, which is harmful for the following deep beneficiation. Thus new methods have to be developed for detection and content evaluation of dolomite in Florida phosphates on moving belt conveyors. 

Fig. 44. Correlations among solubility Sa and the so-called amorphous content evaluated by X-ray diffraction, IR and NMR 29). Numbers on the lines are the correlation coefficients y for two arbitrarily chosen parameters...

Fat Content Evaluation Using Confocal Laser Scanning Microscopy... 

Condition Evaluation of Concrete Bridges Relative to Reinforcement Corrosion. Vol. 6 Method for Field Determination of Total Chloride Content. Evaluates four procedures to measure the chloride content of reinforced... 

Test Methods. Field applications on a small scale and under especially stringent conditions accelerate possible failure. Traffic paints are tested by painting stripes across the lanes of traffic instead of parallel to traffic flow. Automobiles are driven on torture tracks with stretches of gravel, through water, under different climatic conditions. Sample packs of canned goods are made the linings are examined for failure and the contents evaluated for flavor after storage. 

The program coordinator, the Academic Audit Committee, and the Department Academic Committee analyze the attainment values and determine whether there is a need for changes in course delivery methods, curriculum content, evaluation, and assessment methods. 

Table 8.3 presents several analytical lines which mmed out to be the mostly important for several industrial installations. It was found that practically in all cases it is possible to find the emission lines, which enable to differentiate between accepted and rejected elements. Based on minerals LIBS library, a method has been developed for real time detection and content evaluation of minerals or trace concentrations of elements in minerals as they are conveyed on a moving belt, using the intensity ratios of the emission lines characteristic for specific elements or minerals. 

In brief the constructs were digested by using Papainase (3.2 U/ml) for 18-24 hours at 60°C prior to DNA and GAG content evaluation. 

Noirot, M. Barre, P. Louam, J. Duperray, C. Hamon, S. Consequences of stoichiometric error on nuclear DNA content evaluation in Coffea liberica var. dewevrei using DAPI and propidium iodide. Ann. Bot. 2002, 89, 385-389. 

Figure 14.2 The compositional change at tendon-to-bone insertion site and the corresponding change of mechanical properties, (a) Relative mineral content evaluated from confocal Raman microprobe spectroscopy measurements, showing the ratio of the areas of the 960 Acm" PO4 peak to the 2940Acm collagen peak, across the tendon-to-bone insertion, (b) Bounds and estimates for the axial elastic modulus ( ) of a partially mineralized fiber. Mineral stiffens fibers dramatically at volume fraction above the percolation threshold = 0.5), indicated by the arrows. Percolation occurs at lower volume fraction for regions of enhanced mineralization elongated parallel to the fiber axis.

After that period, the concentration of magnesium carbonate used as a stabilizer in fine salt was increased until 2 %. This modification could improve the stabilization of iodine during our systematic study. The increase of iodine content evaluated in 1992 in the commercial salt is higher than in 1984 and this could be the explanation of the normalization of urinary excretion.With a mean content of 7.5 mg/kg we can assume that the daily supplementation would be around 25 pg of iodine per day. Those findings need to be reevaluated in other districts and moreover they raise of question of a possible regression of goiter endemicity in France which needs more epidemiological studies. 

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