Reflection directed

The linear and nonlinear optical responses for this problem are defined by e, 2, e and respectively, as indicated in figure Bl.5.5. In order to detemiine the nonlinear radiation, we need to introduce appropriate pump radiation fields E(m ) and (co2)- If these pump beams are well-collimated, they will give rise to well-collimated radiation emitted tlirough the surface nonlmear response. Because the nonlinear response is present only in a thin layer, phase matching [37] considerations are unimportant and nonlinear emission will be present in both transmitted and reflected directions. [Pg.1277]

Although some changes occur in the melting furnace, cathode impurities are usually reflected directly in the final quaUty of electrorefined copper. It is commonly accepted that armealabiUty of copper is unfavorably affected by teUurium, selenium, bismuth, antimony, and arsenic, in decreasing order of adverse effect. Silver in cathodes represents a nonrecoverable loss of silver to the refiner. If the copper content of electrolyte is maintained at the normal level of 40—50 g/L, and the appropriate ratio of arsenic to antimony and bismuth (29) is present, these elements do not codeposit on the cathode. [Pg.203]

Liquid crystal displays depend upon the reorientation of the director , the defining alignment vector of a population of liquid crystalline molecules, by a localised applied electric field between two glass plates, which changes the way in which incident light is reflected directional rubbing of the glass surface imparts a... [Pg.296]

Refrigeration system pipes are sized to offer a lowresistance to flow, since this reflects directly on compression ratio, commensurate with economy of pipe cost and minimum flow velocities to ensure oil return with the halocarbons. [Pg.129]

The collision process can be captured by a high speed video camera as shown in Fig. 6 [14]. The slurry is about 50 mm apart away from the solid surface at 0 s (Fig. 6(a)), and reaches the surface at 0.018 s (Fig. 6(b)). Then the slurry reflects at an angle as same as the incidence angle (Fig. 6(c)). As time goes, the reflected liquid beam is divided into two beams, one is in the reflected direction and another is parallel to the solid surface as shown in Fig. 6(d). When time reaches 0.068 s, most of the reflected slurry moves along the solid surface. [Pg.238]

The latter can be estimated from the side force coefficients obtained during the abrasion experiments for a small shp angle and a high speed. They reflect directly the compound stiffness and since the dimensions are the same also the shear modulus. [Pg.754]

Similar results were obtained for the cleavage of the (S—C) bond in ionized 122Si). For metastable ion decompositions it is observed that the loss of C2D is favoured over C2Hj elimination by a factor of 2.8 1. This value reflects directly the operation... [Pg.22]

The so-called direct methods rely on the principles that phase information is included in the intensities, that electron density is always positive, and that the crystal contains atoms that are or may be considered equal. Phase relations based on probability theory have been formulated and applied to clusters of reflections. Direct methods are still under development for proteins, although they are standard techniques for determining phase angles in smaller molecules. [Pg.82]

Reflectivity spectra can be registered in two different modes (i) direct reflectivity or (ii) dijfuse reflectivity. Direct reflectivity measurements are made with well-polished samples at normal incidence. Diffuse reflectivity is generally used for unpolished or powdered samples. Figure 1.7 shows the experimental arrangements for measuring both types of spectra. [Pg.15]

Of conrse, many reflections are possible from a regnlar lattice, and if the set of vectors snch as h is represented then we can graphically visualise all the reflecting planes and consequent reflected directions in the crystal. We have dednced virtually all the rules already, but we formalise the description below. [Pg.80]

Analogous considerations apply, for example, to the calculation of second-order properties, for which a very similar computational problem must be addressed. For typical applications this step constitutes 95-100% of the total computational effort, and a successful parallelization will therefore reflect directly on overall performance. [Pg.269]

An interferometer is a useful device. In interferometry, two fields are mixed and allowed to coherently interfere. In its simplest form, an interferometer combines two phase-coherent fields by means of a beam splitter. If and are the two fields combined at the beam splitter with reflectivity r, and (j) is the relative phase between the fields, the intensity in the reflected direction of E after the beam splitter is... [Pg.220]

REVIEW This is a strong second volume for what promises to be an important series in the field of supramolecular chemistry. The quality of the graphics is somewhat inconsistent among the chapters, reflecting direct reproduction of the authors variable originals However, this does not detract from an excellent compilation of studies from five laboratories with very diverse approaches to supramolecular chemistry. ... [Pg.339]

An obvious question arises do these peripheral sympathetic activations reflect direct effects of the drugs on the peripheral autonomic nervous system, or are they secondary to the central effects Although we cannot rule out a contribution from the direct route, a central contribution seems very likely for the following reasons. [Pg.264]

Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFT).6 When IR radiation is directed onto the surface of a solid sample, two types of energy reflectance can occur specular and diffuse. The specular component is the radiation that reflects directly off the sample surface (i.e., not absorbed by the sample). Diffuse reflectance is the radiation that penetrates into the sample and then emerges. Diffuse reflectance accessories are designed to optimize the diffuse reflected energy and suppress the specular component. The optics therefore selectively directs the scattered radiation to the IR detector. [Pg.223]

Although film for data collection has largely been replaced by devices that feed diffraction data (positions and intensities of each reflection) directly into computers, I will continue to speak of the data as if collected on film because of the simplicity of that format, and because diffraction patterns are usually published in a form identical to their appearance on film. I will discuss other methods of collecting data in Chapter 4. [Pg.11]

Gd-complexes of TETA and DOTP have no inner sphere water molecule and therefore the NMRD profiles reflect directly the second- and outer-sphere relaxivity accessible also from calculations based on the molecular dynamics simulations (Fig. 8). The experimental NMRD profile of [Gd(TETA)]- could be reproduced by drastically changing the electronic relaxation parameters from those... [Pg.89]

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