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Recently, Takahashi has introduced the James and von Neumann-Jordan type constants. In this paper, we present some sufficient conditions for uniform normal structure and therefore the fixed point property of a Banach space in terms of the James and von Neumann-Jordan type constants and the Ptolemy constant. Our main results of the paper significantly generalize and improve many known results in...

ferrite sind magnetische werkstoffe, die in der technik vielseitige verwendung finden.z.b. ferritantennen, magnetophon, magnetische verstarker, magnetregler informationsspeicher,schaltelemente ; u.s.w. neue typen von ferriten erschlissen sich immer wieder neue anwendungsgebiete. die magnetische eigenschaft der ferrite hangen von der anordnung der atomen in kristallstruktur abo ferrite haben ein...

The influence of inorganic fertilizer media at different concentrations on the growth and biochemical composition of Haematococcus pluvialis microalgae was evaluated. Microalgae were placed in a bath culture with inorganic fertilizer (NPK) medium and WC medium during 28 days, Growth and biological aspects of microalgae between the media were compared. Mineral concentrations affected the physiol...

the aim of this study was to determine the effect of trenched zirconia bar on the von mises stress distribution of ips -empress ii core ceramics.the three-dimensional model including a three-unit bridge from the second premolar to the second molar was designed. the model was reinforced with zirconia bar (zb), zirconia bar with vertical trench (vzb) and zirconia bar with horizontal trench (hzb) ...