منابع مشابه
Applications of Ferro-Nanofluid on a Micro-Transformer
An on-chip transformer with a ferrofluid magnetic core has been developed and tested. The transformer consists of solenoid-type coil and a magnetic core of ferrofluid, with the former fabricated by MEMS technology and the latter by a chemical co-precipitation method. The performance of the MEMS transformer with a ferrofluid magnetic core was measured and simulated with frequencies ranging from ...
متن کاملVirtual Experiments by Pulse Heating Techniques: Cylindrical Tungsten Specimens
A bi-dimensional geometrical model was developed and numerically solved considering different cylindrical tungsten specimens, heated to temperatures above 3600 Kwith current pulses of about (500, 750, and 950) ms duration. A detailed analysis of these virtual experiments indicated large radial temperature differences in all the investigated cases. The range of validity of the long thin rod appr...
متن کاملThe Adsorption of SDS on Ferro-Precipitates
The main aim of the paper is to evaluate ferroprecipitates as immobilization agents for removing selected surfactants from aqueous solutions. Two ferro-precipitates based on iron oxides were used. Adsorbents were varied both in elementary composition and mineral composition. Sodium dodecyl sulphate (SDS) was used as a model anionic surfactant. Simultaneous measurements of the surfactant’s adsor...
متن کاملSurface States on Tungsten
There have been sevex'al recent theoreti. cal papers predicting that surface states can exist in d-band metals near the cx'ossover of s and d bands of the same symmetry. ' ' This paper reports the first direct experimental evidence of surface states on clean single-crystal faces of tungsten. Total energy di.stributions of field emitted electrons from single-crystal planes reveal surface-depende...
متن کاملOn the Temperature Dependence of Ferro-Magnetic Saturation.
1 C. Spearman, Abilities of Man, Their Nature and Measurement, Macmillan, 1927; see Appendix, p. viii. 2 H. T. H. Piaggio, Brit. J. Psychol., 24, 88-105 (1933) states the matter clearly (p. 104) when in discussing Kelley's tests he says: "However, in deciding what tests to retain we make the tetrad relations the criterion, and not preconceived notions about dissimilarity of tests; indeed in the...
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ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 1894
ISSN: 0002-7863,1520-5126
DOI: 10.1021/ja02103a002