The appearance,formation and development of corrosion products on archaeological iron in simulated soil media (0.06 mol·L -1 NaCl+0.03 mol·L -1 Na_2SO_ 4+0.01 mol·L -1 NaHCO_3 aqueous solution) were investigated through metallographic technique,micro-Raman spectrometry and X-ray diffraction.
Crystalline phase and surface appearance of TiO_2, TiO_2-SnO_2 crystal could be obtained by XRD and AFM analysis, the samples prepared in this experiment are anatase, and the average size of TiO_2, TiO_2-SnO_2 particles in the thin film are 20nm and 15nm, respectively.
The microstructure and wear resistance of microalloyed engineering 35MnVN,40MnVTi steel were investigated in comparison with steels 45,40Cr after warm forging at 650℃,and the worn-out appearance were analyzed.
Morphological Component Analysis (MCA) is a new method which takes advantage of the sparse representation of structured data in large overcomplete dictionaries to separate features in the data based on the diversity of their morphology.
The photophysical properties and morphology of fluorene-alt-benzene based conjugated polymer
The UV-vis absorption and fluorescence spectra, thermal stability of spectral property, phase transition behavior and morphology of the synthesized polymers were investigated.
TEM observations indicate that solvent-cast thin deposits of all the polymers show typical fibrillar morphology.
The effect of the ratio of DMF to water on the multilayer growth, structure and surface morphology was studied in some details.
As for the four transect lines, the east and the northeast scored higher in each diversity index than the others due to less human disturbance, gentler topography uplift and more intercepted materials and energies.
The distribution of microbiotic crusts were studied, while human disturbance, aspect, topography, vegetation structure and other factors affecting it were obtained from the analysis of survey data from 78 sample plots.
Topography and elementary components of the brake block's wear surface are analyzed by employing SEM and EDAX patterns, revealing its tribological behaviour and wear mechanism.
Increasing the grinding depth or the wheel velocity makes grinding temperature and residual tensile stress of the surface rise, which deteriorates the surface topography.
During scanning, AF/PSTM could get two optical images of refractive index image and transmissivity image, and two AFM images of topography image and phase image.
This gives a geometric explanation for the appearance of pattern avoidance in the study of singularities of Schubert varieties.
The pressure equation, which is elliptic in appearance, is discretized by a standard five-points difference method.
One allows the appearance of eight limit cycles in the neighborhood of infinity, which is the first example that a polynomial differential system bifurcates eight limit cycles at infinity.
The asymmetry of the rotor caused by broken-bar fault will give rise to the appearance of additional frequency component of 2sfs (s is slip and fs is supply frequency) in the electromagnetic torque spectrum.
The excellent recognition performance is much better than those of the other cited references, which indicates that our approach is well-suited for appearance-based object recognition.
Preparation and characterization of silver colloids with different morphologies under ultrasonic field
Preparation and characterization of ZrWMoO8 powders with different morphologies
ZrWMoO8 powders with different morphologies were obtained using ammonium tungstate, molybdate tungstate and zirconium tungstate as the starting materials by dehydrating the precursor ZrWMoO7(OH)2(H2O)2.
Manganese dioxides with various morphologies were prepared using a common hydrothermalmethod without any templates or additives.
One- or quasi one-dimensional zinc oxide nanostructures possess plenty of morphologies.