Prism method

Figure 10. The two prism method for surface electromagnetic wave spectroscopy as developed by Schoenwaid, Burstein, and Elson (14)...

Otto single prism method as shown in the inset. The Mn stearate molecules lie on... 

In spite of a major improvement gained from the rotating prism method, there are still serious limitations in the use of microelectrophoresis in determining zeta potential. First, this technique cannot be applied to dense dispersions, i.e., the number density of the particles must be very low. This can sometimes, but not always, be remedied by filtering the sample and diluting a small amount of the original dispersion with a large volume of filtrate. Second, it cannot be applied... 

Fig. 3 A diagram of light paths in the rotating prism method of microelectrophoretic measurement.

The optical propagation losses in the vacuum evaporated benzylic amide [2] catenane thin films, measured in planar waveguide configuration [47, 48] were found to be PL = 2.8 0.1 dB/cm at A = 1.32 (xm and PL = 4.0 0.1 dB/cm at A = 1.55 (xm, respectively. These values were determined by a two prism method [49]. As for polycrystalline thin films these value are significantly smaller han usually observed. It shows the ability of these molecules to form good optical quality thin films by using these technologically friendly technique. It shows also that the crystallites are very small, tens to a few hundreds of nanometers size. 

Studies by Baier et al. (1974) using the germanium prism method... 

Figure 28.16 shows the distributions of the refiractive index of P-EW s TMSA blocks, SP-30. These data were obtained using about 1,300 pieces of manufactured blocks. The refractive index is usually measured by the prism method [19]. The refractive index was in the range of 1.029-1.033 and almost all the blocks are within 1.029-1.031. This dispersion is caused by the differences between batches of manufacturing, solutions for alcogels, supercritical drying processes, measuring conditions of the refractive index, etc. 

Prediction of the precise pitches for phase matching requires the measurement of and a [see Eqs. (26) and (6). Since is an average over the two principal dielectric constants in the ordered phase, we measured c(cu) and (3cu) with X = 1.06 Mm in the isotropic liquid phase where the random orientations of the molecules gives the desired average. It was assumed that the small variation of r due to temperature and phases could be neglected. We used the prism method with a mercury-arc lamp as the light source and a filtered photomultiplier tube as the detector. The results are given in Table II. 

British Standards Institution (BSI). BS 812-123 1999. Testing aggregates. Method for determination of alkali-silica reactivity. Concrete prism method. BSI, London, 1999. 

Development and application by Glandt and co-workers of a theory of chain molecule fluids in porous media that heavily uses PRISM methods. ... 

Optical loss Calorimetry, PTD, scattering detection methods, sliding prism methods... 

Figure 17-6. Measurement of optical loss of a 2D waveguide by the sliding prism method.

In Abbe s double prism method a thin ho-meotropically oriented nematic film is placed between the hypotenuse faces of two rectangular prisms. Using light polarized parallel and perpendicular to the optical axis, respectively, the principal refractive indices and can be obtained directly from the critical angle of total reflection, provided that the refractive index of the prism is greater than that of the liquid crystal [2, 8-10]. In some cases the director of the nematic phase was oriented uniformly parallel to the prism planes [11-14]. Special variants of the total reflection method have been described [3, 4, 15, 16]. A total reflection refractometer of the Abbe type has also been used to determine n, n and An in the infrared region between 2.5 and 14 p.m [17]. 

Figure 1. The paths of the light rays in Chatelain s hollow prism method (the optical axis of the nematic liquid is parallel to the edge of the wedge).

In order to determine the absolute values of the refractive indices, is measured using an independent method, such as Abbe s double prism method. 

Loads applied to pipes in embankments are generally higher than they would be on pipes in trenches. Actnal load depends on the relative stiffness between the embankment soil and the pipe. The prism load is most often used when pipe is to be placed in an embankment. By using the prism method, the vertical pressure on flexible pipe in an embankment can be calculated. 

The PRISM method modifies the McMurchie-Davidson recurrence relations to process contracted rather than primitive integrals. The first step in this procedure is to introduce simultaneous contraction and scaling. Examples of this are... 

Figure 7 A schematic outline of a subsection of the PRISM method...

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