Results 41 to 50 of about 54,335 (262)

Tunnel magnetoresistance in alumina, magnesia and composite tunnel barrier magnetic tunnel junctions

, 2010
Using magnetron sputtering, we have prepared Co-Fe-B/tunnel barrier/Co-Fe-B magnetic tunnel junctions with tunnel barriers consisting of alumina, magnesia, and magnesia-alumina bilayer systems. The highest tunnel magnetoresistance ratios we found were 73%
Auge, Alexander, Drewello, Volker, Münzenberg, Markus, Reiss, Günter, Schebaum, Oliver, Schuhmann, Henning, Seibt, Michael, Thomas, Andy   +7 more
core   +1 more source

The effect of dietary fish oil replacement by microalgae on the gilthead sea bream midgut bacterial microbiota

Peer Community Journal
It is well known that the gut microbiome and its interaction with the host influence several important factors for fish health such as nutrition and metabolism.
Katsoulis-Dimitriou, Stefanos, Nikouli, Eleni, Gkalogianni, Elli Zafeiria, Karapanagiotidis, Ioannis T., Kormas, Konstantinos A.   +4 more
doaj   +1 more source

Energy, exergy, economic and environmental (4E) analyses of a cleaner fused magnesia system

Case Studies in Thermal Engineering, 2023
This study performed a comprehensive energy, exergy, economic, and environmental analysis to evaluate the thermodynamic performance of a cleaner fused magnesia system (CFMS), compare with light burned magnesia process system (LMPS) and fused magnesia ...
tianchi Jiang, weijun Zhang
doaj   +1 more source

Optimization of struvite precipitation in synthetic biologically treated swine wastewater - Determination of the optimal process parameters [PDF]

, 2013
A sustainable way to recover phosphorus (P) in swine wastewater involves a preliminary step of P dissolution followed by the separation of particulate organic matter.
Biscans, Béatrice, Béline, Fabrice, Capdevielle, Aurélie, Daumer, Marie-Line, Sýkorová, Eva   +4 more
core   +2 more sources

The effect of sintering on the properties of magnesia-granite sludge ceramics shaped by temperature-induced forming

, 2021
Recycling waste materials have attracted considerable attention owing to the increased interest in depressing the negative impact on the environment. The present work investigates the effect of increasing the granite sludge-waste materials from granite ...
H. Sadek, M. A. Hessien, Z. A. A. El-Shakour, M. Taha, R. M. Khattab   +4 more
semanticscholar   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

Kinetics of Leaching Calcium from Dolomite [PDF]

Kemija u Industriji, 2011
Magnesia is obtained from magnesite ore and the production process applied should remove accompanying minerals that reduce its refractoriness. Given that magnesite reservoirs are more exploited and largely exhausted, there is a growing need for ...
Azizi, A., Sadiku, M., Shaqiri, M., Rashani, Sh., Hoda, S.   +4 more
doaj  

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

The Effect of Nano-magnesia Addition on the Properties of Magnesite-hercynite Refractory Bricks Made with the Use of Convertor Mud

Journal of Advanced Materials in Engineering, 2017
In this study, the composition of magnesium aluminate spinle and the converter mud were used as raw materials to in-situ formation of hercynite phase in magnesite-hercynite refractory bricks.
H. Ahmadi, S. Otroj, M. R. Nilforushan, A. Dehghani Varnamkhasti   +3 more
doaj   +2 more sources

Sleepless in Syracuse: Plato and the Nocturnal Council [PDF]

, 2019
I defend the Seventh Letter, traditionally attributed to Plato, against Michael Frede's argument that it presents a political philosophy inconsistent with that found in the Laws.
Hull, Andrew
core