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Unit display

Table 12.9-8 summarizes the results of field test conducted at the Home. The measurements were taken on two successive days with the windows open. Air samples taken next to the open window was used as control. Air samples taken at the middle of the room was assumed to represent the conditions of the room. The data shows that Prototype Unit was able to keep the airborne bacteria level in the room reasonable low compared to outside. Also, the Prototype Unit displays on average 52 % reduction per pass which is within the performance specification. [Pg.412]

In comparison, both the free ligand and the dinuclear Cu(I) cryptate of an analogous macrobicyclic structure possessing a diphenylmethane group as a central unit display only two resonances for the CH2CH2 fragment, as is the case here only for the complexes 91 and 92. This points to the special conformation features of the free macrobicycles 89 and 90. [Pg.140]

The data have been analyzed within the described coupled double-well model. The protons are represented by pseudospins whereas the C4O4 unit displays highly nonlinear polarizability effects, which are taken into account within the framework of the nonlinear polarizability model [17,20]. As compared to KDP-type ferroelectrics the model is less complex [26,27] since the... [Pg.17]

A number of other cubane complexes of V(IV) have been reported. [Cp V(N)]4 can be reduced reversibly at Ef = 0.16 V versus Cp2Fe/THF [71]. A similar cubane complex [TpV(03P0Ph)]4 where phosphate groups bridge three TpV units displays four oxidation features, of which two are reversible (0.68, 1.13 V versus Ag/AgCl/CH2Cl2) and two are irreversible. Although bulk electrolysis at a potential suitable to remove one electron from the complex resulted in decomposition [72]. [Pg.371]

With regard to structure/property relations, Tomalia et al. assumed that the diimide groups in larger dendrimers come into close proximity. The first-generation dendrimer with only six diimide units displayed a lower conductivity, yet the fifth generation with 96 diimide units has no particular advantage over the second-generation dendrimer with just 12 diimide functions. It was therefore postulated that low -stacks are formed in every dendrimer, with the result that... [Pg.241]

As very different systems, Ueno et al. prepared a-helix peptides bearing y-cyclodextrin and one (16,17) or two (18) naphthalene units in their side chains (Fig. 2) [38], They are alanine-based peptides composed of 17 amino acid residues. The peptides 16 and 17, which have y-CD and one naphthalene unit, display a simple monomer emission and the fluorescence intensity slightly decreases with increasing guest concentration. On the other hand, the peptide 18, which has y-CD and two naphthalene units on both sides of the y-CD unit, exhibits considerable excimer emission in addition to the predominant monomer emission and the excimer emission decreases with increasing guest concentration. This indicates that 18 excludes the two naphthalene units from the y-CD cavity to the opposite directions upon guest accommodation. [Pg.467]

Each type of Q unit displays different NMR properties (e.g. isotropic chemical shift value, CSA) and therefore can be resolved, distinguished and analysed by 31P NMR spectroscopy. 31P NMR spectra of the modified glasses show a decreasing number of Q3 units with simultaneously increasing number of Q2 sites. When the amount of modifier increases, Q1 units appear and are formed in increasing amount. [Pg.81]

A synthetic copolymer provides additional degrees of freedom in the arrangement of the repeating units. For example, the spectrum of a copolymer of vinylidine chloride and isobutylene, shown in Fig. 13.5, indicates that various tetrad sequences (sequences of four monomer units) display significantly different spectra. Copolymers composed of more than two monomer types, including biopolymers, have much more complex spectra, as we discuss later. [Pg.355]

Fe—S(C) unit displays a narrower Fe—S—C angle [104.95(64)°], suggesting a difference in tt-bonding between the two types of thiolate ligand. [Pg.432]

Since they are equivalent to homobutadienes, cyclopropanes interacting directly with an olefin unit display a particularly rich chemistry. Pericyclic reactions come into play in this specific area. Similar to other cyclopropane derivatives, the reactivity of vinylcyclopro-panes with nucleophiles, electrophiles and radicals as well as their general chemical behaviour will be governed by substituents at the cyclopropane core and at the double bond. ... [Pg.416]

On the basis of the results from this group, the Roche Diagnostic company has recently produced a wearable apparatus that has been tested in 23 diabetic patients for up to 72 h. The extra-corporeal unit displays a glucose value every minute. The signal is corrected for the time needed for fluid transport from the microdialysis probe to the sensor (31 min). The one-point cahbration mode was used after an initial equflibration time of about 4.7 h. Continuous monitoring was feasible for at least 3 days with no time-dependent dechne in sensitivity to glucose being noted [115]. [Pg.237]

Case 2. The Monomeric Structural Unit Displays a Virtual or a Monotropic Mesophase The Polymer Displays a Monotropic or an Enan-tlotropic Mesophase... [Pg.330]

The steeper slope of the T c, , ., -M dependence versus that of the Tk-i(lc) dePendence has ev K ore important implications on the moledular weight-phase transition temperature dependence for the situation when the monomer structural unit displays only a monotropic or a virtual mesophase (Figure 10). [Pg.330]

The third situation is illustrated in Figure 11 and also refers to a different case in which the monomeric unit displays only a virtual mesophase. Here as before, the slope of the T. (i.e., Tic k) M dependence is higher than that of the Tffl (i.e., T j -M dependence, the latter lies above the former throughout hence the two curves do not intercept each other. Therefore, the resulting polymer displays also only a virtual mesophase. This thermodynamic situation was recently applied to the synthesis of virtual liquid crystal polyethers containing both flexible mesogens and flexible... [Pg.330]


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