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U Illustration of shape sdcctivily. CsKsery, S. M. Chem. Bnt. 1985, 21.473-477. Reproduced with permission.

U intensity ratio measured via standard addition mode using micronebulization

U intensity ratio measured via standard addition mode using micronebulization in LA-ICP-MS.

U Itraviolet absorption spectra of tetraphenylcumulenes .

U Itraviolet spectra of quinazoline in water. The solid line shows the neutral species, the dotted line the cation.

U Left-hand side

U llliiscraiion of shape selectivity. Csicseiy. S. M. Ckem. Brit. t9R5w 21,473-477. Rc irodiiocd with permissian.

U mass and critical size of uranium light-water mixtures at 260 C. Assumed densities

U mid Th systematics for LP6 indicating a generally very stable system. 230Th 232Th is shown on a logarithmic scale, with lower values indicating higher detrital content at the top. The major hiatus of the Stage 12 glacial and the minor hiatus.

U Modern btlayer membrane for the chloralkali prooesa.

U nexpected CNS activity of the tetracycline analogue 11 .

U nion Carbide Eveready silver-zinc cell vellage-discharge curves

U Open-column chromatography, to collect eluent from the column in early use of this technique the colour of the eluent was used to detect when a separated band was eluting from the end of the column.

U Pb isotopic dating of different generations of uranium oxides from the Millennium deposits.

U Pb versus U concentrations for MORE from three ocean basins. The positive slope of the correlation indicates that U is much more incompatible than Ph during mantle melting. This means that the similarity of Ph isotopes in continental and oceanic crust see

U Photoinitiated copolymerization of a 1 1 molar mixture of a N-substituted bis-maleimide and a divinylether

U presents an example of emother experimenteil observation — that of a multiplicity of limit cycles — which has not previously been reported and is not predicted by the models described earlier. When such multiplicity was encountered, we were able to reach either of the two periodic reactor states by means of appropriate feed concentration changes. It is interesting to note that the period of the single-peak cycle is very nearly half that of the complex cycle, curve

U Principle of pressure retarded osmosis.

U PV diagram for a pure fluid.

U rea functionalized phosphate ligands for asymmetric hydrogenation of dimethyl itaconate .

U reactor temperature 350 K.

U Recovery of swelling ratio by heat treatment at 190 C

U refers to a slow chemical reactioj . Markedly less

U Schematic illustration for the visual detection of DNA on a lateral-flow test strip.

U Schematic of a bipolar lead illustrating the factors involved in determining system impedance. The arrows denote current flow. Resistance to current flow occurs at the lead conductor . The largest contributors to system impedance are the cathode impedance and polarization effects.



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