Search Results - (Author, Cooperation:V. Anant)
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1Latest Papers from Table of Contents or Articles in PressR. Riedinger ; S. Hong ; R. A. Norte ; J. A. Slater ; J. Shang ; A. G. Krause ; V. Anant ; M. Aspelmeyer ; S. Groblacher
Nature Publishing Group (NPG)
Published 2016Staff ViewPublication Date: 2016-01-19Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsPublished by: -
2Articles: DFG German National LicensesSingh, Okram G. ; Padalia, B. D. ; Prakash, Om ; Moorthy, V. N. ; Narlikar, Anant V.
[S.l.] : American Institute of Physics (AIP)
Published 1994Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: We have reported recently on the revival of superconductivity in Nd1.82Ce0.18CuOy by doping with a divalent alkaline earth element. The doped superconductor Nd1.82−xSrxCe0.18CuOy has a Nd2CuO4 (T'-type) structure. This system possesses a normal state metallic resistivity [ρ(T)] in polycrystalline form. The ρ(T) versus temperature (T) plots are, in general, linear. We report here the results of our studies of ρ(T) and thermopower S(T) and their dependence on the lattice oxygen content (y) that is a function of the Sr-content x. The dρ(T)/dT improves and then deteriorates with an increase in y. However, the thermopower behavior is a more complicated function of y (or x) and its results indicate that the majority of the charge carriers are electronlike. The thermopower (in absolute value) of the superconducting Nd1.73Sr0.09Ce0.18CuO3.97 compound gradually decreases from 250 to 150 K, remains almost constant from 150 to 75 K, decreases very fast below 75 K, and shows negative dS/dT. The overall feature of the S vs T plot suggests that the main contribution to S is from diffusion. Unlike reduced Nd1.82Ce0.18CuO4.01 and other electron-doped superconductors, we have not observed a peak near the transition temperature (Tc) on the higher temperature side of the S vs T plot of the present sample. An attempt is made to explain the salient features of the thermopower.Type of Medium: Electronic ResourceURL: -
3Articles: DFG German National LicensesStaff View
ISSN: 1476-4687Source: Nature Archives 1869 - 2009Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsNotes: [Auszug] The shock loading history of iron meteorites seems to alter profoundly their solid state response to annealing at moderate temperatures. This permits certain conclusions about the history of these iron meteorites to be ...Type of Medium: Electronic ResourceURL: -
4Articles: DFG German National LicensesStaff View
ISSN: 1573-6784Source: Springer Online Journal Archives 1860-2000Topics: Process Engineering, Biotechnology, Nutrition TechnologyNotes: Summary Hydrogels of alginate, phospho guar gum, carboxymethyl guar gum, k-carrageenan and cellulose sulphate, respectively were tested to find easily redissolvable gels. The entomopathogenic nematode, Heterorhabditis sp., was entrapped in calcium alginate beads, calcium alginate hollow spheres and foils made from different hydrogels. Emigration from calcium alginate beads after 7 days of storage was 100 % at room temperature and was lowered to 6 % at 6 °C, whereas no emigration from calcium alginate hollow spheres was found at either temperature. Highly concentrated polymer foils produced on gauze showed reduced emigration with a survival of 80 % after 24 h compared to foils produced on glass slides. Calcium alginate beads can be used for a controlled release of the nematode into the environment, while hollow spheres and foils are suitable for storage.Type of Medium: Electronic ResourceURL: