Výsledky vyhledávání

Extrusion/Spheronization—Effect of Moisture Content and Spheronization Time on Pellet Characteristics

Autor: R M Iyer, D G Pope, R D Shah, Larry L. Augsburger

Publikováno v: Pharmaceutical Development and Technology. 1:325-331

As part of a larger effort aimed at optimizing the properties of pellets produced by spheronization of extruded masses, the effect of the moisture content of wet masses on extrusion force and torque was studied. The wet masses were composed of either

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::670ea568cc6d8b7d463f96cc13be0f34
https://doi.org/10.3109/10837459609031427

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Thermoelectric power of single-phase samples of Tl2CaBa2Cu2O y and Ba2CaSr2Cu2O y

Autor: J. V. Yakhmi, I K Gopalakrishnan, C. K. Subramaniam, V Vijayashree, R M Iyer, Raghavan Srinivasan, P.V.P.S.S. Sastry

Publikováno v: Bulletin of Materials Science. 14:827-830

Single-phase 2122 samples of thallium and bismuth superconductors were made by the precursor matrix method. The thermopower of these samples was measured in the temperature range 250 K-Tc . The thermopower was positive and decreased linearly with inc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d18424546888bda8b4b6a34c964804d
https://doi.org/10.1007/bf02744734

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IAEA nuclear data services for radiochemistry

Autor: O. Schwerer, R. M. Iyer, P. Obložinský, D. W. Muir

Publikováno v: Journal of Radioanalytical and Nuclear Chemistry. 239:139-141

The IAEA provides convenient access to the most comprehensive collection of nuclear data libraries worldwide, many of them highly relevant to radiochemical applications. This paper gives an overview of databases available over the Internet via the Wo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::402fd1ad5a5058df3541ca61977dc1b2
https://doi.org/10.1007/bf02349545

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Paraconductivity in YBa2(Cu1−xNix)3O7–y and Bi2Sr2Ca1−xYxCu2O8+y

Autor: S. N. Bhatia, P.V.P.S.S. Sastry, C.P. Dhard, J. V. Yakhmi, R. M. Iyer, I.K. Gopalakrishnan

Publikováno v: Physica C: Superconductivity. :1845-1846

In the paraconductivity of Bi2Sr2Ca1−xYxCu2O8+y (x=0, 0.1, 0.3) we find the normal conductivity σn(T) to play an important role. With Anderson-Zou expression for σn(T) only, we find the excess conductivity to exhibit the cross over from 2D to 3D

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6c812f9e5fa5900754484dd3b0c85b58
https://doi.org/10.1016/0921-4534(91)91048-9

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Instability of Y- and rare-earth-substituted Bi(Pb)-2223 phase

Autor: J. V. Yakhmi, R. M. Iyer, P. V. P. S. S. Sastry

Publikováno v: Journal of Materials Chemistry. 4:1077

Detailed synthetic efforts aimed at incorporating Y/rare-earth ions (RE) into the 110 K superconducting phase (Bi,Pb)2Sr2Ca2Cu3O10 +δ indicate that it is not stable in the presence of even small amounts of Y/RE. The products invariably contain Bi-22

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0cf1c5acf4b93f065d71c513a2422b80
https://doi.org/10.1039/jm9940401077

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Micellar chain model for the origin of the visoelasticity in dilute surfactant solutions

Autor: B. S. Valaulikar, R. M. Iyer, U. R. K. Rao, C. Manohar

Publikováno v: The Journal of Physical Chemistry. 91:3286-3291

Etude par spectrometrie RMN, des effets de l'addition de salicylate de sodium, de meta chlorobenzoate de sodium et d'acide metahydroxybenzoique, a des solutions micellaires de bromure de palmityl trimethylammonium

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5a3b4238651bf84767c6901e20735946
https://doi.org/10.1021/j100296a036

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Microwave absorption studies in new high-Tcsuperconducting oxide systems: Tl-Ba-Ca-Cu-O and Bi-Ca-Sr-Cu-O

Autor: G.M. Phatak, Ramakant Mahadeo Kadam, I.K. Gopalakrishnan, A.G.I. Dalvi, P.V.P.S.S. Sastry, M. D. Sastry, Y. Babu, R. M. Iyer

Publikováno v: Journal of Physics C: Solid State Physics. 21:L607-L614

Microwave absorption studies of the new high-Tc superconducting systems Tl-Ba-Ca-Cu-O (Tc( rho =0)=118 K) and Bi-Ca-Sr-Cu-O (Tc( rho =0)=84 K) were conducted using an X-band EPR spectrometer. The main features observed were (i) a sharp change in the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::84ec7068ac4813d6f76481fe5d38c414
https://doi.org/10.1088/0022-3719/21/16/010

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