The properties of gamma-FeOOH, alpha-FeOOH and alpha-Fe_2O_3 particles formed by hydrolysis of Fe~(3+) ions in perchlorate containing aqueous solutions were investigated using FT-IR and Mossbauer spectroscopies, TEM and FE SEM. At room temperature, slow hydrolysis of 5 X 10~(-3) M Fe...
With the decrease of aging temperature, the average size of gamma' phase decreases, but the volume fraction of gamma' phase increases. The lower aging temperature suppresses the growing of the coarse gamma' particles, but facilitates the growth of the fine gamma' particles. After the optimum ...
Topological one-dimensional superconductors can sustain zero energy modes protected by different kinds of symmetries in their extremities. Observing these excitations in the form of Majorana fermions is one of the most intensive quests in condensed matte
The surface morphology of the as-deposited and gamma irradiated CsPbBr3 thin films was investigated using FESEM. Fig. 3(a-e) show that the as-deposited FESEM imagery have small closely packed granular-shaped particles dispersed completely on the surface of substrate. The average grain size decre...
Among dozens of young pulsar wind nebulae (PWNe), some have been detected in TeV gamma-rays (TeV PWNe), while others have not (non-TeV PWNe). The TeV emission detectability is not correlated with either the spin-down power or the characteristic age of the central pulsars and it is an...
The simulations were set using an NVT ensemble, where the number of particles (N), the volume (V), and the temperature (T) of the system remain constant. Simulations were run using the projector augmented wave (PAW) method to compute the interatomic forces96. A constant temperature in the...
摘要: It is shown that the matrix BETA for spin 1 particles can be ; expressed in terms of the three matrices alpha /sub i/ occurring in the ; hamiltonian form of the theory, just as in the case of the matrix gamma ; for spin 1/2 particles. (auth); 年份: 1962 收藏...
characterise silk.Dispersive surface energy dominates in all silk materials.Surface of all silk materials has higher basic groups compared to acid groups.Flowability of ultrafine particles changes depending on the state of consolidation.Hydrolysis of silk changes morphology, surface energy and flow ...
As plastic marine debris continues to accumulate in the oceans, many important questions surround this global dilemma. In particular, how many descriptors would be necessary to model the degradation behavior of ocean plastics or understand if degradation
The energy of a photon depends on radiation frequency; there are photons of all energies from high-energy gamma- and X-rays, through visible light, to low-energy infrared and radio waves. All photons travel at the speed of light. Considered among the subatomic particles, photons are bosons,...