منابع مشابه
Effect of Grinding Time on Structural and Thermal Properties of Strontium-Doped Nanostructural Lanthanum
In this work, the strontium-doped lanthanum manganite- a ceramic material- used as cathode in solid oxide fuel cells. An impression of grinding time on the structural and thermal properties of Sr-doped LaMnO3 system with La1-xSrxMnO3 (x=0.2) stoichiometric ratio was investigated. The nano crystallite LSM powder with cubic structure was prepared by varying the milling time of planetary monomill ...
متن کاملeffect of grinding time on structural and thermal properties of strontium-doped nanostructural lanthanum
in this work, the strontium-doped lanthanum manganite- a ceramic material- used as cathode in solid oxide fuel cells. an impression of grinding time on the structural and thermal properties of sr-doped lamno3 system with la1-xsrxmno3 (x=0.2) stoichiometric ratio was investigated. the nano crystallite lsm powder with cubic structure was prepared by varying the milling time of planetary monomill ...
متن کاملEffect of Strontium Dopant on Electrical Conductivity of Perovskites
The compounds, lanthanium chromite, lanthanium magnetite and lanthanium ferric oxide were prepared through sol-gel methods in powdered form, then calcinated, peletized, and sintered at various temperatures. Electrical conductivity of these compounds was measured at various temperatures. The effectiveness of strontium as a dopant on electrical conductivity was also investigated. Electrical condu...
متن کاملWorking Time Research Abstracts
SHIFTWORK INTERNATIONAL NEWSLETTER The official newsletter of the Scientific Committee on Night and Shiftwork of the International Commission on Occupational Health June 2003, Volume 20, Number 1 ISBN 0265-5357 Published by Tsuyoshi Kawakami and Kazutaka Kogi Institute for Science of Labour 2-8-14, Sugao, Miyamae-ku, Kawasaki 216, Japan (Fax: +81-44-977-7504; E-mail: [email protected], k.kog...
متن کاملMaximizing time from the constraining European Working Time Directive (EWTD): The Heidelberg New Working Time Model
BACKGROUND The introduction of the European Working Time Directive (EWTD) has greatly reduced training hours of surgical residents, which translates into 30% less surgical and clinical experience. Such a dramatic drop in attendance has serious implications such compromised quality of medical care. As the surgical department of the University of Heidelberg, our goal was to establish a model that...
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ژورنال
عنوان ژورنال: Materials Today
سال: 2011
ISSN: 1369-7021
DOI: 10.1016/s1369-7021(11)70073-6