Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Phase indices

Because the losses tend to be excessive in volume absorption gratings, volume holograms are realized in most cases using index (phase) gratings. [Pg.162]

The right hand side of Fig. A.4.6 is contained in Fig. 3.3. Capacity measurements can readily be made at solid electrodes to study adsorption behavior. For a review see Parsons (1987). As Fig. A.4.7 illustrates, capacity potential curves of three low-index phases of silver, in contact with a dilute aqueous solution of NaF, show different minimum capacities (corresponding to the condition o = 0) and therefore remarkably different potentials of pzc. The closest packed surface (111) has the highest pzc and the least close-packed (110) has the lowest pcz these values differ by 300 mV. Such complications observed with single crystal electrodes, seem likely to have their parallel at other solid surfaces. For example, it is to be expected that a crystalline oxide will have different pzc values at its various types of exposed faces. [Pg.152]

R Fikn resistance, transfer resistance, for indexed phase Fig. 5.1, Eq. (5.64)... [Pg.255]

Figure 10.18 Dynamic light scattering (DLS) of vesicle mixtures, (a) P-index phase diagram and (b) size distributions (from DLS) for DDAB-oleate mixtures, total concentration 1 mM in 0.2 M borate buffer at pH 8.5, 25.0 °C, scattering angle 90°. (From Thomas and Luisi, 2004.)... Figure 10.18 Dynamic light scattering (DLS) of vesicle mixtures, (a) P-index phase diagram and (b) size distributions (from DLS) for DDAB-oleate mixtures, total concentration 1 mM in 0.2 M borate buffer at pH 8.5, 25.0 °C, scattering angle 90°. (From Thomas and Luisi, 2004.)...
Fig. 1 Chemical interaction mechanisms, basic components of the optical sensor instrumentation and their operation. Mechanisms direct measurement of chemical compounds that exhibit spectroscopic properties (1 A) and measurement of light originating from a chemical or a biological reaction in chemiluminescent or bioluminescent phenomena (IB) 2 optodes based on the interaction of indicators and labels with light, which are immobilized in a support and sensors that modify the intrinsic physical or chemical properties of a waveguide (refractive index, phase, etc.) as a result of the presence of the analyte (3A), a recognition element (35), an intermediate analyte (3C) or an indicator (3D)... Fig. 1 Chemical interaction mechanisms, basic components of the optical sensor instrumentation and their operation. Mechanisms direct measurement of chemical compounds that exhibit spectroscopic properties (1 A) and measurement of light originating from a chemical or a biological reaction in chemiluminescent or bioluminescent phenomena (IB) 2 optodes based on the interaction of indicators and labels with light, which are immobilized in a support and sensors that modify the intrinsic physical or chemical properties of a waveguide (refractive index, phase, etc.) as a result of the presence of the analyte (3A), a recognition element (35), an intermediate analyte (3C) or an indicator (3D)...
While studying polymer distribution between the emulsion phases it was found that in the systems mentioned above obtained both by copolymerization of styrene with polybutadiene rubber and mixing styrene solutions of polymers when the composition is far enough from the critical mixing point, thermodynamic equilibrium is reached.At this thermodynamic equilibrium the ratio of polymer concentration (Cp) in rubber (index ) as well as in polystyrene (index ) phases is practically constant (table II),... [Pg.387]

A comparable discussion of Pb-UPD on the other low-index phases of silver is summarized in [2, 22]. [Pg.434]

In a free acoustic field such as that in an open air or anechoic chamber, the pressure and intensity levels in the direction of propagation are numerically the same. In a diffuse field in which sound is reflected so many times that it travels in all directions with equal magnitude and probability (reverberation chamber), the pressure and intensity levels are different and this difference is known as the pressure-intensity index (phase index or reactivity index). [Pg.189]

While the SFA provided direct evidence as to the thickness of a polymer layer adhering to a surface, TIRF provides a measure of the surface area concentration, r. TIRF spectroscopy makes use of the total internal reflection of light at the interface between a solid adsorption substrate of relatively high refractive index and a polymer solution of lower refractive index. Ihe total internal reflection, however, generates a standing evanescent wave, a nonclassical penetration of the light into the lower refractive index phase. The evanescent wave may penetrate some 60 to 65 nm into the lower refractive index phase, be absorbed by it, fluoresce, and so on (72,73). [Pg.655]

X where n is the number of tie-lines, x and indicate the experimental and calculated mole fraction, respectively. The subscript i indexes components, j indexes phases and k = 1,2,..., n (tie-lines). The UNIQUAC model was used to correlate the experimental data at each temperature (298.15,303.15, and 305.15 K) with RMSD% values of 1.42, 1.97, and 1.33%, respectively. [Pg.153]

MAD data are indexed. Phases are obtained from the P2 l l space group and the MAD data set by using a program, for example, SOLVE (automated solution). Molecular graphics of the protein complex are rendered by using a certain selected program, for example, SPOCK. [Pg.527]

High refractive index phase Low refractive index phase... [Pg.154]

Kara, M. Linke, U. Wandlowski, T. 2007. Preparation and electrochemical characterization of palladium single crystal electrodes in 0.1 M H2SO4 and HCIO4 Part I. Low-index phases. Electrochim. Acta 52 5733-5748. [Pg.740]

Tlie relationship between sound pressure level and sound intensity level. When the sound intensity level is measured in a free field in air, then the sound presstme level and sotmd intensity level in the direction of propagation are numerically the same. In practice most measurements of the sound intensity are not carried out in a free field, in which case there will be a difference between the sotmd pressure and intensity levels. This difference is an important quantity and is known by several terms, such as reactivity index, pressure-intensity index, P-7 index, phase index, or LK value. This index is used as a field indicator to assess the integrity of a measurement in terms of grades of accuracy or confidence limits. This will be considered in more detail later in this section. [Pg.33]


See other pages where Phase indices is mentioned: [Pg.136]    [Pg.64]    [Pg.36]    [Pg.36]    [Pg.123]    [Pg.94]    [Pg.342]    [Pg.4703]    [Pg.18]    [Pg.23]    [Pg.179]    [Pg.292]    [Pg.22]    [Pg.142]    [Pg.179]    [Pg.287]    [Pg.704]   
See also in sourсe #XX -- [ Pg.529 , Pg.530 , Pg.531 ]




SEARCH



Dense-phase 6 INDEX

Field-Induced Refractive Index Change and Phase Shift

INDEX crystallographic phases

INDEX intermediate phases

INDEX liquid phase

INDEX phase diagram

INDEX phase transformation

INDEX reversed-phase

INDEX reversed-phase HPLC

Mobile phase refractive index

Phase 2 trial 1658 INDEX

Phase angle 402 INDEX

Phase cycling 280 INDEX

Phase equilibrium 652 INDEX

Phase inversion 1368 INDEX

Phase separation INDEX

Retention index McReynolds’ phase constants

Retention indexes and stationary phase constants

Reverse phase 452 INDEX

Solid-phase extraction INDEX

Solid-phase synthesis 634 INDEX

Solution-phase synthesis INDEX

Stationary phases 1042 INDEX

© 2024 chempedia.info