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Transformation translation

Note that although this discussion will be limited to the translational case, the major results can be applied immediately to rotational dynamics. Transforming translation into angular velocities and axis coordinates into angular coordinates leaves unchanged the form of the equations involved. The only caveat which has to be used concerns the boundary conditions that have to be imposed so as to respect the periodic character of the rotational problems (rotation by 27t leaves these systems unchanged). [Pg.246]

The distinction made by Baudelaire between critique proprement dite and poetic criticism in the Salon de 1846 is thus illustrated by the co-existence in his corpus of art criticism and transpositions d art. This co-existence echoes that of the direct translations and his transformative translations, and may thus provide a key to translations and its limits for Baudelaire. [Pg.217]

We note that the time-evolution according to the free Dirac equation is a special Poincare transformation (translation in the time-direction of Minkowski space). It is a unitary transformation generated by the free Dirac operator Hq ... [Pg.57]

This is done by identifying characteristic features on each image as comers, edges or objects that are matched and caUbrated by correspondence, to obtain the rigid transformation (translation + rotation) that permit to switch from one reference to another. Subsequently, data fusion can be performed by grouping all points in a single file. This operation is usually accompanied by a... [Pg.10]

With Salmonella typhirium, the amino acid considered is histidin His — His These microbial transformations translate the modification of the organism s genome under the influence of mutagenic substances. The test results are expressed as the number of reverse-mutating colonies per treated culture, in relation to control cultures. [Pg.222]

The MDE methodology in MetaMORP(h)OSY is enacted by means of two main components Observer and Translators Observers are used in order to evaluate properties both on (abstract) models and (real) nmning systems. Translators implement both vertical and horizontal transformation [30]. Horizontal transformations translate models into other (formal) ones at the same level of abstraction they are used in order to create analyzable models from descriptive ones (for example real time properties are verified on design models translating UML models into timed automata). Vertical transformation are usually used in MetaMORP(h)OSY in order to translate abstract models into finer grained models. This kind of transformation usually usually is not fully automated. Requirements tracing in vertical transformations requires the creation of proper Observers able to verify abstract requirements on finer grained models. [Pg.122]

We have previously commented on the Lorentz invariance of the Dirac equation. Considering that this places time and space coordinates on an equal footing, it may seem inconsistent to discuss transformations in spin space and only. We therefore now turn our attention to time transformations. With only one coordinate, there are only two possible transformations translation and reversal. Translation will be treated in connection with a discussion of the Lorentz transformations in the next section. Here, we will consider the symmetry of the Dirac equation under time reversal. [Pg.92]

Let us introduce the coherent potential Vk(E) which is thought to be dependent on energy E and exciton momentum k. The coherent potential is translational invariant in the site representation. The Hamiltonian (1) is transformed with the coherent potential taken into account as... [Pg.445]

This result, when substituted into the expressions for C(t), yields expressions identieal to those given for the three eases treated above with one modifieation. The translational motion average need no longer be eonsidered in eaeh C(t) instead, the earlier expressions for C(t) must eaeh be multiplied by a faetor exp(- co2t2kT/(2me2)) that embodies the translationally averaged Doppler shift. The speetral line shape funetion I(co) ean then be obtained for eaeh C(t) by simply Fourier transforming ... [Pg.431]

From the information on the right side of the C3v eharaeter table, translations of all four atoms in the z, x and y direetions transform as Ai(z) and E(x,y), respeetively, whereas rotations about the z(Rz), x(Rx), and y(Ry) axes transform as A2 and E. Henee, of the twelve motions, three translations have A and E symmetry and three rotations have A2 and E symmetry. This leaves six vibrations, of whieh two have A symmetry, none have A2 symmetry, and two (pairs) have E symmetry. We eould obtain symmetry-adapted vibrational and rotational bases by allowing symmetry projeetion operators of the irredueible representation symmetries to operate on various elementary eartesian (x,y,z) atomie displaeement veetors. Both Cotton and Wilson, Deeius and Cross show in detail how this is aeeomplished. [Pg.595]

Pressure. Most pressure measurements are based on the concept of translating the process pressure into a physical movement of a diaphragm, bellows, or a Bourdon element. For electronic transmission, these basic elements are coupled with an electronic device for transforming a physical movement associated with the element into an electronic signal proportional to the process pressure, eg, a strain gauge or a linear differential variable transformer (LDVT). [Pg.65]

The Right to Prepare Derivative Works. Many copyrighted works serve as the basis for derivative works, in which the underlying work is recast, transformed, or adapted. Examples include translations, motion pictures made from novels, and musical arrangements. Derivative works can be a significant source of income for copyright owners. [Pg.265]

This is the hypoelastic constitutive equation considered by Truesdell (see Truesdell and Noll [20]). In large deformations, this equation should be independent of the motion of the observer, a property termed objectivity, i.e., it should be invariant under rigid rotation and translation of the coordinate frame. In order to investigate this property, a coordinate transformation (A.50) is applied. If the elastic stress rate relation is to be unchanged in the new coordinate system denoted x, then... [Pg.149]

In Section 5.2 the set of internal state variables k was introduced. In the referential theory, a similar set of referential internal state variables K will be introduced in the same way without further physical identification at this stage. It will merely be assumed that each member of the set K is invariant under the coordinate transformation (A.50) representing a rigid rotation and translation of the coordinate frame. [Pg.154]

The objectivity of the spatial stress rate relation (5.154) may be investigated by applying the coordinate transformation (A.50) representing a rotation and translation of the coordinate frame. The spatial strain and its convected rate are indifferent by (A.58) and (A.62). So are the stress and its Truesdell rate. It is readily verified from (5.151), (5.152), and the fact that K has been assumed to be invariant, that k and its Truesdell rate are also indifferent. Using these facts together with (A.53) in (5.154) with c and b given by (5.155)... [Pg.158]

It is expected that constitutive equations should be invariant to relative rigid rotation and translation between the material and the coordinate frame with respect to which the motion is measured, a property termed objectivity. In order to investigate this invariance, the coordinate transformation... [Pg.178]

Breusov, O.N., Physical-Chemical Transformation of Inorganic Materials Under Shock Waves, in Proceedings, Second All-Union Symposium on Combustion and Explosion (edited by Stesik, L.N.), Chernogolovka, 1971, pp. 289-293, Translation, Sandia National Laboratories Report No. RS3144/79/43. [Pg.365]

Batsanov, S.S., Chemical Reactions Under the Action of Shock Compression, in Detonation Critical Phenomena, Physicochemical Transformations in Shock Waves (edited by Dubovitskii, F.I.), Chernogolovko, 1978, pp. 197-210. Translation, UCRL-Trans-11444, pp. 187-196. [Pg.368]

Fig. 2. Depiction of conformal mapping of graphene lattice to [4,3] nanotube. B denotes [4,3] lattice vector that transforms to circumference of nanotube, and H transforms into the helical operator yielding the minimum unit cell size under helical symmetry. The numerals indicate the ordering of the helical steps necessary to obtain one-dimensional translation periodicity. Fig. 2. Depiction of conformal mapping of graphene lattice to [4,3] nanotube. B denotes [4,3] lattice vector that transforms to circumference of nanotube, and H transforms into the helical operator yielding the minimum unit cell size under helical symmetry. The numerals indicate the ordering of the helical steps necessary to obtain one-dimensional translation periodicity.
To calculate the profiles and the differential capacitance of the interface numerically we have to choose a differential equation solver. However, the usual packages require that the problem is posed on a finite interval rather than on a semi-infinite interval as in our problem. In principle, we can transform the semi-infinite interval into a finite one, but the price to pay is a loss of translational invariance of the equations and the point mapped from that at infinity is singular, which may pose a problem on the solver. Most of the solvers are designed for initial-value problems while in our case we deal with a boundary-value problem. To circumvent these inconveniences we follow a procedure strongly influenced by the Lie group description. [Pg.827]

Guirao and Bach (1979) used the flux-corrected transport method (a finite-difference method) to calculate blast from fuel-air explosions (see also Chapter 4). Three of their calculations were of a volumetric explosion, that is, an explosion in which the unbumed fuel-air mixture is instantaneously transformed into combustion gases. By this route, they obtained spheres whose pressure ratios (identical with temperature ratios) were 8.3 to 17.2, and whose ratios of specific heats were 1.136 to 1.26. Their calculations of shock overpressure compare well with those of Baker et al. (1975). In addition, they calculated the work done by the expanding contact surface between combustion products and their surroundings. They found that only 27% to 37% of the combustion energy was translated into work. [Pg.189]


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See also in sourсe #XX -- [ Pg.22 ]




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Symmetry transformations translation

Transformation of Coordinates for Zones in Uniform Translation

Translation-rotation transformation

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