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151, Changes in surface roughness after gas cluster ion bombardments have been measured by an atomic force microscope.

152, He was one of the most important advocates for atomic theory when that scientific model was still highly controversial.

153, The comparisons between the frequency stabilities for atomic time and pulsar time are presented.

154, That would be like saying that the Allies shouldn't have prosecuted the Nazis because they themselves firebomb Dresden and dropped atomic bombs.

155, And so, for today, for example, it says Classification Schemes, Mendeleev, Atomic Structure, A Readings Chapter 1, Chapter 2, Appendix A.

156, This indicates that by combining two lithiums, the energy of the combined system is lower than the energies of the atomic systems.

157, All the variations are associated with the charges and atomic radiuses of metals.

158, Because only atomic hydrogen has that set of lines which means I could then take the spectra of gas phase species and use that information to identify.

159, Experts believe North Korea has not yet been able to miniaturise an atomic weapon to place on a missile, but it may not be far off.

160, The status of traditional atomic frequency standards and research progress of new atomic frequency standards, as well as new horizontal of international atomic time(TAI) are described.

161, A method for determining mercury(Hg) in reprocessing process was investigated with separation by dithizone extraction and determination by cold atomic fluorescence spectrometry.

162, Graphite furnace atomic absorption spectrometry with solid sampling is an at tractive method for direct determination of trace metals and their longitudinal distribution in human hair.

163, An atomic explosion is created by setting off a chain reaction.

164, Using an atomic force microscope and two layers of insulators (lanthanum aluminum oxide and strontium titanium oxide),[Sentencedict.com] Levy and his colleagues created a nanoscale transistor.

165, To add nonfissionable matter to ( fissionable material ) so as to prevent use in an atomic weapon.

166, The researchers analysed the sizes and structures of ash particles using a variety of techniques, such as atomic force microscopy, scanning electron microscopy and X-ray diffraction.

167, Not all of the atomic nuclei of an element are identical.

168, Computative program of isotopic abundances and average atomic weights of elements.

169, Early chemists had to use indirect means for determining the atomic mass of an element.

170, Potassium: Chemical element , one of the alkali metals, chemical symbol K, atomic number 19.

171, The International Atomic Energy Agency voted to rebuke Syria on claims of an undeclared nuclear reactor in the country's remote northeast.

172, The transactor thinks activating the atomic interaction in the intact reactori is practicable.

173, For a hydrogen atomic frequency standard. Measurement of it's stability, especially real-time stability, cavity tuning and line Q must be done.

174, Application of quantum mechanics to atomic structure, molecular bonding, and spectroscopy gives us quantum chemistry.

175, Voltage controlled crystal oscillator(VCXO)plays an important roll in the atomic frequency standard.

176, This includes atomic radius and the idea of isoelectronic atoms.

177, Before the atomic theory of matter, and molecules, and so forth was well worked out.

178, The content of lead in coated paper was determined by hydride - generation atomic fluorescence spectrometry ( HG - AFS ).

179, For the nanoparticles in fcc structure, both the nearest atomic distance and cohesive energy decrease with decreasing particle size for a certain particle shape.

180, Democritus was one of the earliest philosophical materialists and speculated about the atomic structure of matter. Marx's first published word was a study of Democritus.