753 research outputs found
Transferrin-bound Yb2 uptake by U-87 MG cells and effect of Yb on proliferation of the cells
2003-2004 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe
铁代谢与铁调素hepcidin
2005-2006 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe
Magnetoresistance in LaFe11.2Co0.7Si1.1 compound
Magnetoresistance has been studied in LaFe/sub 11.2/Co/sub 0.7/Si/sub 1.1/ compound. The ferromagnetic ordering at Curie temperature T/sub C/ of 274 K was found being accompanied by a drastic negative lattice expansion due to the strong structural and magnetic interplay. Such a simultaneous magnetic and lattice change would cause changes in transport properties. The measured transport properties indicate that the transition can be induced by temperature or applied magnetic field. The sample shows a metallic character below T/sub C/, whereas the electrical resistance decreases dramatically and then recovers the metal-like behavior above T/sub C/. Application of a magnetic field retains the transitions via increasing the ferromagnetic ordering temperature. An isothermal increase of field leads to an increase of resistance at temperatures near but above T/sub C/, which is a result of the field-induced metamagnetic transition from paramagnetic to ferromagnetic state.published_or_final_versio
Magnetocaloric effect in itinerant electron metamagnetic systems La(Fe1-xCox)11.9Si1.1
The NaZn13-type compounds La(Fe1–xCox)11.9Si1.1 (x=0.04, 0.06, 0.08) were successfully synthesized, in which the Si content is the limit that can be reached by arc-melting technique. TC is tunable from 243 to 301 K with Co doping from x=0.04 to 0.08. Great magnetic entropy change S in a wide temperature range from ~230 to ~320 K has been observed. The adiabatic temperature change Tad upon changing magnetic field was also directly measured. Tad of sample x=0.06 reaches ~2.4 K upon a field change from 0 to 1.1 T. The temperature hysteresis upon phase transition is small, ~1 K, for all samples. The influence of Co doping on itinerant electron metamagnetic transition and magnetic entropy change is discussed. ©2005 American Institute of Physics.published_or_final_versio
铁转运刺激因子研究进展
2003-2004 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe
膜铁转运蛋白Ferroportin1的研究进展
2004-2005 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe
Compensation ratio-dependent concentration of a V InH 4 complex in n-type liquid encapsulated Czochralski InP
The concentration of hydrogen-indium vacancy complex V InH 4 in liquid encapsulated Czochralski undoped and Fe-doped n-type InP has been studied by low-temperature infrared absorption spectroscopy. The V InH 4 complex is found to be a dominant intrinsic shallow donor defect with concentrations up to ∼10 16 cm -3 in as-grown liquid encapsulated Czochralski InP. The concentration of the V InH 4 complex is found to increase with the compensation ratio in good agreement with the proposed defect formation model of Walukiewicz [W. Walukiewicz, Phys. Rev. B 37, 4760 (1998); Appl. Phys. Lett. 54, 2094 (1989)], which predicts a Fermi-level-dependent concentration of amphoteric defects. © 1998 American Institute of Physics.published_or_final_versio
DMT1的结构及其基因表达调控
2004-2005 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe
Effects of swim training on the expression of gastrocnemius’ iron transport proteins in rats
2004-2005 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe
Influence of exercise on iron metabolism
2004-2005 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe
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