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The impurity-impurity interaction in aluminum
Physics Letters A, 1973Abstract The interaction between a Cu atom and a Sn atom in aluminum was calculated by the pseudopotential method. It is shown that there is a rather weak coupling between these different types of impurity atoms.
R. Yamamoto, O. Takai, M. Doyama
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Die Pharmazie, 2007
Methods of preparation of API pioglitazone were discussed from the point of view of impurities occurrence. Four real impurities (I–IV) of pioglitazone were prepared and characterized by means of NMR spectroscopy.
J, Richter +3 more
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Methods of preparation of API pioglitazone were discussed from the point of view of impurities occurrence. Four real impurities (I–IV) of pioglitazone were prepared and characterized by means of NMR spectroscopy.
J, Richter +3 more
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physica status solidi (a), 2010
AbstractWe report the transport properties of graphene in the presence of topological and (non‐topological) long‐range impurities, in the framework of a tight‐binding model. We first investigate the electronic transport properties of a zigzag edge graphene nanoribbon with several kinds topological defects: a pentagon, a heptagon, and a pentagon ...
Zhang, Y.Y. +5 more
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AbstractWe report the transport properties of graphene in the presence of topological and (non‐topological) long‐range impurities, in the framework of a tight‐binding model. We first investigate the electronic transport properties of a zigzag edge graphene nanoribbon with several kinds topological defects: a pentagon, a heptagon, and a pentagon ...
Zhang, Y.Y. +5 more
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Ethics & the Environment, 2003
I was taken aback when I received a request from the West Australian government to write a response to the question, "What Is The Ethical Foundation For Planning A More Sustainable Future?" My first reaction was: Does not every one want a future? And doesn't this necessarily mean a commitment to sustainability ? Would not everyone earnestly want a more
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I was taken aback when I received a request from the West Australian government to write a response to the question, "What Is The Ethical Foundation For Planning A More Sustainable Future?" My first reaction was: Does not every one want a future? And doesn't this necessarily mean a commitment to sustainability ? Would not everyone earnestly want a more
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Vacancy-vacancy, vacancy-impurity, and impurity-impurity interactions in aluminum
Physical Review B, 1974Electronic interactions between vacancies and impurity atoms have been generally studied using the pseudopotential formulation based on the second-order perturbation theory. The distortions of the lattice around vacancies and impurity atoms were conventionally neglected because of their great complexity.
Osamu Takai +3 more
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Impurity levels induced by a C impurity in GaAs
Physical Review B, 1986We have used the Watson-sphere-terminated molecular-cluster model within the framework of the multiple-scattering X\ensuremath{\alpha} theory to carry out electronic-structure calculations of a carbon substitutional impurity in GaAs. The activation energy of the ${\mathrm{C}}_{\mathrm{As}}$ impurity level is calculated as a function of inward ...
, Scolfaro +4 more
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Impurity in Halothane Anesthetic
Science, 1963A halogenated butene has been isolated from commercially available halothane (Fluothane). Its concentration increases under the conditions in which halothane is commonly used in clinical work.
E N, COHEN +3 more
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The American Journal of Surgery, 1939
T HERE is a great Iack of information both on the occurrence and on the effects of impurities which may occur in ether. Only since 1925 have cases of so-called ether convuIsions been reported in the literature. The EngIish have emphasized two factors which have been present in the majority of cases reported: (I) the patients have been young and (2 ...
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T HERE is a great Iack of information both on the occurrence and on the effects of impurities which may occur in ether. Only since 1925 have cases of so-called ether convuIsions been reported in the literature. The EngIish have emphasized two factors which have been present in the majority of cases reported: (I) the patients have been young and (2 ...
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Environmental Monitoring and Assessment, 1989
Snow can be involved in the acquisition, transport, storage and release of atmospheric impurities. Because it can store impurities for periods of time ranging from hours to millenia, it provides a medium for monitoring atmospheric impurities for a wide range of time scales.In most climates, snow is involved in the precipitation process.
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Snow can be involved in the acquisition, transport, storage and release of atmospheric impurities. Because it can store impurities for periods of time ranging from hours to millenia, it provides a medium for monitoring atmospheric impurities for a wide range of time scales.In most climates, snow is involved in the precipitation process.
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