Influence of the doping on the time-dependent magnetic behaviour of fine particles

1994 ◽  
Vol 30 (6) ◽  
pp. 4077-4079 ◽  
Author(s):  
G. Bottoni ◽  
D. Candolfo ◽  
A. Cecchetti
Keyword(s):  
Fine Particles ◽  
Magnetic Behaviour ◽  
Time Dependent

Time-dependent magnetic behaviour of Ba ferrite particles at low temperature

1996 ◽  
Vol 32 (5) ◽  
pp. 4517-4519 ◽  
Author(s):  
G. Bottoni ◽  
D. Candolfo ◽  
A. Cecchetti
Keyword(s):  
Low Temperature ◽  
Magnetic Behaviour ◽  
Time Dependent

The time-dependent magnetic behaviour of fine particle systems

1986 ◽  
Vol 97 (1) ◽  
pp. 213-221 ◽  
Author(s):  
R. W. Chantrell ◽  
M. Fearon ◽  
E. P. Wohlfarth
Keyword(s):  
Fine Particle ◽  
Magnetic Behaviour ◽  
Particle Systems ◽  
Time Dependent

Effect of Surface Absorption on the Magnetic Behaviour of α-Fe2O3 Fine Particles

1991 ◽  
Vol 126 (2) ◽  
pp. 469-475 ◽  
Author(s):  
K. Sun ◽  
M. X. Lin ◽  
D. L. Hou ◽  
H. L. Luo
Keyword(s):  
Fine Particles ◽  
Magnetic Behaviour ◽  
Surface Absorption ◽  
Effect Of Surface

Cytoplasmic Organization in the Receptor Cells of the Crista Ampullaris

1972 ◽  
Vol 30 ◽  
pp. 60-61 ◽  
Author(s):  
Robert F. Dunn
Keyword(s):  
Fine Particles ◽  
Apical Cell ◽  
Apical Region ◽  
Receptor Cells ◽  
Cuticular Plate ◽  
Morphological Organization ◽  
Crista Ampullaris ◽  
Cytoplasmic Organization ◽  
High Degree ◽  
General Appearance

Receptor cells of the cristae in the vestibular labyrinth of the bullfrog, Rana catesbiana, show a high degree of morphological organization. Four specialized regions may be distinguished: the apical region, the supranuclear region, the paranuclear region, and the basilar region.The apical region includes a single kinocilium, approximately 40 stereocilia, and many small microvilli all projecting from the apical cell surface into the lumen of the ampulla. A cuticular plate, located at the base of the stereocilia, contains filamentous attachments of the stereocilia, and has the general appearance of a homogeneous aggregation of fine particles (Fig. 1). An accumulation of mitochondria is located within the cytoplasm basal to the cuticular plate.

Bright-Field Images (Ctem) of Phase Objects at High Resolution

1976 ◽  
Vol 34 ◽  
pp. 490-491 ◽  
Author(s):  
Sumio Iijima
Keyword(s):  
High Resolution ◽  
Electron Beam Irradiation ◽  
Fine Particles ◽  
High Resolution Electron Microscopy ◽  
Good Test ◽  
Resolution Electron ◽  
Single Crystal Films ◽  
Crystal Films ◽  
By Products ◽  
Test Objects

We have developed a technique to prepare thin single crystal films of graphite for use as supporting films for high resolution electron microscopy. As we showed elsewhere (1), these films are completely noiseless and therefore can be used in the observation of phase objects by CTEM, such as single atoms or molecules as a means for overcoming the difficulties because of the background noise which appears with amorphous carbon supporting films, even though they are prepared so as to be less than 20Å thick. Since the graphite films are thinned by reaction with WO3 crystals under electron beam irradiation in the microscope, some small crystallites of WC or WC2 are inevitably left on the films as by-products. These particles are usually found to be over 10-20Å diameter but very fine particles are also formed on the film and these can serve as good test objects for studying the image formation of phase objects.

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