Zone search method

Zone search method begins with searching for one-dimensional and two-dimensional zones and then builds three-dimensional zones using common rows in two-dimensional lattices. When a three-dimensional zone (lattice) is found, it is used in an attempt to index all observed Bragg reflections. This automatic indexing technique is more sophisticated when compared to a trial-and-error approach, but it is still based on Eq. 5.1. First, the analysis of numerical relationships between the observed Q-values is made to identify zones that are invariant with respect to two indices, for example AOO, h 0, OkO and so on. Second, these are combined to identify zones which are invariant with respect to one index and, finally zones where all three indices 

The zone search indexing method does not require an assumption about the crystal system and therefore, it results in a primitive lattice in most cases. When the lattice is confirmed by the subsequent indexing of all observed Bragg peaks, it shall be converted to one of the 14 standard Bravais lattices. The latter is achieved in a process known as the reduction of the unit cell. 

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The reciprocal space indexing can be implemented in several different ways. Two of them are trial-and-error and zone search methods. The first one is more efficient in high symmetry crystal systems (from cubic to orthorhombic) but becomes slow for low symmetry crystal systems (especially triclinic), while the second method works quite effectively and is fast with low symmetries (from triclinic to orthorhombic). 

This algorithm realizes a zone search indexing method combined with the Delaunay-Ito technique (see section 5.10.1) for the reduction of the most probable unit cell. The most commonly used versions of computer codes are ITO 13 and IT015. The program arrives at a solution by using the following algorithm ... 

Figure 4. show the process of searching data or location. This searching method can choose the data or location by LOT, ZONING or REGION. The QuadR-tree indexing engine selection run in this process. Start from find the data or location until the data will be shown and zoom like in Figure 5. Furthermore, this process measure the speed of using indexing or not over Mobile GIS network.

Improved magnetotelluric methods have detected deep conductors and shallow alteration zones in the search for deep unconformity-related deposits (Farqu-harson Craven 2008). Clay-rich, quartz-corroded quartz-arenite has relatively low resistivity, whereas quartz-rich silicified zones are characterized by high resistivity. Although expensive, 3D seismic has been used to image details of basement topology and more favourable areas for drilling. 

This model allows us to estimate a response inside the experimental domain defined by the levels of the factors and so we can search for a maximum, a minimum or a zone of interest of the response. There are two main disadvantages of the complete factorial designs. First, when many factors were defined or when each factor has many levels, a large number of experiments is required. Remember the expression number of experiments = replicates x Oevels) " (e.g. with 2 replicates, 3 levels for each factor and 3 factors we would need 2 x 3 = 54 experiments). The second disadvantage is the need to use ANOVA and the least-squares method to analyse the responses, two techniques involving no simple calculi. Of course, this is not a problem if proper statistical software is available, but it may be cumbersome otherwise. 

Ribonucleic acid can be eluted electrophoretically directly from the gel without the intervening process of searching for zones. For cylindrical gels, the simplest method is to cover the end of the tube with dialysis tubing, so as to leave a dead space, from which RNA can be recovered with a hypodermic syringe. This is, however, too primitive for most purposes, for one can only select one s fractions by guesswork. 

We recently surveyed a cross-section of plants from many tropical regions of the world in a search for photosensitizers to further test the above hypothesis. The methods used to test for phototoxic phytochemicals are described in detail elsewhere (22). Briefly, methanolic extracts were spotted onto sterile filter-paper discs and allowed to dry. The dried discs were placed onto replicate nutrient agar plates that had been spread with Ex B/r (a UV resistant bacterium). The plates were incubated in the dark at 3TC for 30 min. Half of the plates were irradiated for 60 min. with eight Sylvania F40BLB UVA lamps (18W m ), while the other half were kept in the dark. All plates were incubated overnight in the dark at 37°C, after which the zones of inhibition surrounding the filter paper discs were measured. 

Figure 2.31 demonstrates the dependence of experimental and calculated, by Equation 2.86, temperature drops in a reaction zone on the reaction flow rates. It can be seen that assuming = const, Equation 2.64 provides a reliable description of experimental data and can be used for the analysis and search for effective control methods for the thermal mode of fast chemical reactions [98-103]. 

The trust region method is the most interesting when a reduction of the search zone is involved. In that case, it is essential to identify the correction d that minimizes the auxiliary function (7.65) with the constraint ... 

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