Grinding methods

Analysis of samples. For STEM analysis all samples were prepared using the tissue grinding method with suspension of the fine... 

Dry ground mica concentrate is processed into usable products hy several dillerent grinding methods. Relatively coarse particle sizes (1.651-0.147 mm (10-100 mesh)) are used in oil-well drilling muds. 

Miscellaneous Plants — Study of plant grinding method Flame AAS [99]... 

Ultramicrotoming a catalyst can also provide unique information to the analyst. Since the thickness is uniform throughout the specimen, elemental particle information, metals distribution and structural information not obtained by the grinding method can be obtained (7-8). The limitations are that it is more time consuming and costly than the grinding or scraping method. Also specimens may not necessarily be obtained from the exact region of interest. 

Solomatov V.I., Gttseva A.Yu., Kononova O.V., Kononov M.Yu. The effect of ttrixed binder grinding method on the formation of strength of cement compositions. Beton i zhelezobeton 1999 1 5-6. 

The GRIND method was developed with the aim of extracting the most relevant information from a MIF and compressing it into a handful of variables. The requirements were challenging ... 

Figure 6.3. Aspect of the highly relevant regions extracted by the GRIND method with different settings 50 nodes, 100 nodes and 200 nodes. The encircled areas highlight regions which have been misrepresented due to the selection of an incorrect number of nodes. See text for details.

The GRIND method assumes that the couples of nodes selected to represent a given distance in different compounds do actually represent the same kind of potential interaction with the receptor. This is often not true, for two reasons, as represented in Fig. 6.7. In the first situation (Fig. 6.7 (a)) all the compounds in the series contain alternative sites representing exactly the same distance and from which the candidate couples can be selected. Since the criteria for selecting the nodes is based only on the value of the MIF energy product, different sites can be selected in different compounds. The result is that the 3D graphic shows a non-consistent representation of the sites and can look messy. 

Perhaps the most often used grinding method is a blender. Available in many sizes and variations, this instrument handles large and small samples with equal ease (Figure 10-2). It is, however, a relatively harsh method of breakage and care must be taken to keep the preparation cold... 

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