Big Chemical Encyclopedia

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

Articles Figures Tables About

Character description

Symbol consecutive chain lengths Special Characters Description Equation where nsed... [Pg.618]

At this point, if you have faithfully done the exercises and assignments laid out in previous chapters, you will have learned, among other things, how to write and revise both character description and location description in format how to use offscreen sound to create mood and evoke offscreen events how to begin to develop a character how to gather and transform material for an adaptation and how to do a story outline for a short screenplay to be written using that material. [Pg.65]

Odour Character. Most odour correlation work has been done on character since it is, superficially, the easiest to measure. However, this is a misconception based on the simplistic assumption that, since a subject presented with, for example, samples of rose oil and eucalyptus oil will normally correctly identify the botanical origins of the samples, it can be taken that all odour character descriptions are equally facile. However, this is not the case. For example, one serious issue is that the description of an odour is associative since we have no hard reference points. [Pg.325]

Stanley, C. J., Hall, H. K., McGhie, T., Rowan, D. D., Langford, G. Boysenberry -a character description for commerce, ISHS Acta Horticulturae 585 VIII International Rubus and Ribes Symposium, 2001. [Pg.166]

Point 13 Screenwriters usually don t realize that they might be needed at some points in the game, and then, after story and character descriptions are worked out, that they ll probably be sent away for three to seven months while the game continues to be built. Then the writer will be called back to write the NPC dialogue—and expected to be available. [Pg.51]

Table 8.2 Spectroscopic labels, configurational assignments, energy level AE (kcal/mol, relative to ground singlet), and shell-character description for low-lying singlet states of Ni atom. Table 8.2 Spectroscopic labels, configurational assignments, energy level AE (kcal/mol, relative to ground singlet), and shell-character description for low-lying singlet states of Ni atom.
Structurally benzene is the simplest stable compound having aromatic character, but a satisfactory graphical representation of its formula proved to be a perplexing problem for chemists. Kekule is usually credited with description of two resonating structures which. [Pg.55]

The ROSDAL (Representation of Organic Structures Description Arranged Linearly) syntax was developed by S. Welford, J. Barnard, and M.F. Lynch in 1985 for the Beilstein Institute. This line notation was intended to transmit structural information between the user and the Beilstein DIALOG system (Beilstein-Ohlme) during database retrieval queries and structure displays. This exchange of structure information by the ROSDAL ASCII character string is very fast. [Pg.25]

One way to assess the relative stabilities of these various intermediates is to exam me electron delocalization m them using a resonance description The cyclohexadienyl cations leading to o and p mtrotoluene have tertiary carbocation character Each has a resonance form m which the positive charge resides on the carbon that bears the methyl group... [Pg.489]

The ohmic drop across the electrolyte and the separator can also be calculated from Ohm s law usiag a modified expression for the resistance. When gas bubbles evolve at the electrodes they get dispersed ia and impart a heterogeneous character to the electrolyte. The resulting conductivity characteristics of the medium are different from those of a pure electrolyte. Although there is no exact description of this system, some approximate treatments are available, notably the treatment of Rousar (9), according to which the resistance of the gas—electrolyte mixture, R, is related to the resistance of the pure electrolyte, R ... [Pg.485]

Chemical compounds having odor and taste number in the thousands. In 1969 a description of the odor characteristics of more than three thousand chemical compounds used in the flavor and perfume industries were described (41). The Hst of volatile compounds found in food that may contribute to odor and taste is even larger (42), and the Hst of all possible flavor compounds, including those that have yet to be synthesized, is greater than a thousand. Many different compounds have the same flavor character or quaUty, differing perhaps in their relative intensity but indistinguishable in the type of flavor they ehcit. The exact number of different flavor quaUties is not known, but it appears to be much less than the total number of compounds with flavor. [Pg.3]

Bond lengths and infrared spectra support the multiple-bond character of the M—CO bonds. Coordination of a CO molecule to a metal center can change the C—O bond order. According to the description of ( - and TT-bonding given herein, increased ( -bonding between a metal and CO results in a... [Pg.62]

Later there was an attempt by ab initio calculation to fit the electron structure of diazirine into the Walsh model of cyclopropane (69MI50800). According to these SCF-LCAO-MO calculations three MOs add to the description of the lone electron pairs, all of which also contribute to some extent to ring bonding. As to strain, 7r-character and conjugative effect, the term pseudo-rr-character was used. [Pg.197]

The full 3D analysis of the flow in this type of device is rather complicated. That is why in pai allel with the 3D simulation that gives description of some important details, that result form 3D character of the flow, was developed ID model that provided a very efficient and rather accurate description of the analyzed process with minimum expanses on the analysis. [Pg.84]

Four characteristics of odor are subject to measurement by sensory techniques intensity, detectability, character (quality), and hedonic tone (pleasantness-unpleasantness) (16). Odor intensity is the magnitude of the perceived sensation and is classified by a descriptive scale, e.g., faint-moderate-strong, or a 1-10 numerical scale. The detectability of an odor or threshold limit is not an absolute level but depends on how the odorant is present, e.g., alone or in a mixture. Odor character or qualit) is the characteristic which permits its description or classification by comparison to other odors, i.e., sweet or sour, or like that of a skunk. The last characteristic is the hedonic type, which refers to the acceptability of an odorant. For the infrequent visitor, the smell of a large commercial bread bakery may be of high intensity but pleasant. For the nearby resident, the smell may be less acceptable. [Pg.206]

Although Lewis structures of this type are not entirely adequate descriptions of the structure of the excited states, they do correspond to the MO picture by indicating distortion of chaige and the presence of polar or radical-like centers. The excited states are much more reactive than the corresponding ground-state molecules. In addition to the increased energy content, this high reactivity is associated with the presence of half-filled orbitals. The two SOMO orbitals in the excited states have enhanced radical, cationic, or anionic character. [Pg.754]

Complete Section 1.4 only if you are claiming the specific chemical identity of the toxic chemical as a trade secret and have marked the trade secret block in Part I. Section 1.1 on page 1 of Form R. Enter a generic chemical name that is descriptive of the chemical stmcture. You must limit the generic name to seventy characters (e.g., numbers, letters, spaces, punctuation) or less. Do not enter mixture names in Section 1.4 see Section 2 below. [Pg.37]

The chief descriptive characters and reaction products of the lelobine series are recorded in Table B, and those of the lobinine group in Table C. The constitutional formulas assigned to the principal members of each group are shown on p. 32. [Pg.28]

These results seemed to establish with certainty that the active component of tube curare is derived from Chondrodendron tomentosum, but the matter again became doubtful when King reported that in the stems of a carefully authenticated specimen of the plant, collected at Tarapoto in Peru, he had found 1-curine and Z-tubocurarine chloride. This is the first recorded natural occurrence of the latter and seems to indicate either that the alkaloidal components of the plant are not constant in character, or that the botanical description of Chondrodendron tomentosum covers two species containing the dextro- and Icevo- quaternary alkaloids respectively. [Pg.377]

This expression has a formal character and has to be complemented with a prescription for its evaluation. A priori, we can vary the values of the fields independently at each point in space and then we deal with uncountably many degrees of freedom in the system, in contrast with the usual statistical thermodynamics as seen above. Another difference with the standard statistical mechanics is that the effective Hamiltonian has to be created from the basic phenomena that we want to investigate. However, a description in terms of fields seems quite natural since the average of fields gives us the actual distributions of particles at the interface, which are precisely the quantities that we want to calculate. In a field-theoretical approach we are closer to the problem under consideration than in the standard approach and then we may expect that a simple Hamiltonian is sufficient to retain the main features of the charged interface. A priori, we have no insurance that it... [Pg.806]

It should be noted that CASSCF methods inherently tend to give an unbalanced description, since all the electron correlation recovered is in die active space, but none in the inactive space, or between the active and inactive electrons. This is not a problem if all the valence electrons are included in the active space, but this is only possible for small systems. If only part of die valence electrons are included in the active space, the CASSCF methods tend to overestimate the importance of biradical structures. Consider for example acetylene where the hydrogens have been bent 60° away from hnearity (this may be considered a model for ort/zo-benzyne). The in-plane jt-orbital now acquires significant biradical character. The true structure may be described as a hnear combination of the three configurations shown in Figure 4.11. [Pg.121]

The following description of tliu principal characters ol the more important yaricliiis ol caidamoms is ol interest —... [Pg.101]

The resultant four-character diamond bit classification code was formally presented to the lADC Drilling Technology Committee at the 1986 SPE/IADC Drilling Conference. It was subsequently approved by the lADC Board of Directors and designated to take effect concurrent with the 1987 SPE/IADC Drilling Conference. A description of the 1987 lADC Fixed Cutter Bit Classification Standard follows [54]. [Pg.801]

Four characters are utilized in a prescribed order (Figure 4-156) to indicate seven fixed cutter bit design features cutter type, body material, bit profile, fluid discharge, flow distribution, cutter size, and cutter density. These design traits were selected as being most descriptive of fixed cutter bit appearance. [Pg.801]


See other pages where Character description is mentioned: [Pg.45]    [Pg.123]    [Pg.45]    [Pg.123]    [Pg.2391]    [Pg.281]    [Pg.59]    [Pg.351]    [Pg.351]    [Pg.370]    [Pg.61]    [Pg.359]    [Pg.183]    [Pg.36]    [Pg.269]    [Pg.269]    [Pg.213]    [Pg.268]    [Pg.117]    [Pg.33]    [Pg.673]    [Pg.279]    [Pg.531]    [Pg.921]    [Pg.922]    [Pg.115]    [Pg.118]    [Pg.145]   
See also in sourсe #XX -- [ Pg.458 , Pg.459 , Pg.460 , Pg.461 ]




SEARCH



© 2024 chempedia.info