نتایج جستجو برای: composite particle

تعداد نتایج: 292772  

Journal: :Physical review research 2023

We unveil a duality that extends the notions of both flux attachment and statistical transmutation in spacetime dimensions beyond ($2+1$)D. Thus, quantum system arbitrary can experience modification its properties if coupled to certain gauge field. For instance, bosonic fluid feature composite fermionic (or anyonic) excitations when compute explicit form aforementioned synthetic fields $\text{D...

Journal: :international journal of nano dimension 0
s. rostamzadehmansoor department of chemistry, science and research branch, islamic azad university, tehran, iran. m. s. sadjadi department of chemistry, science and research branch, islamic azad university, tehran, iran. k. zare department of chemistry, science and research branch, islamic azad university, tehran, iran.

sio2-coated cobalt ferrite (cofe2o4) nanoparticles were obtained by the hydrolysis of tetraethylorthosilicate in the presence of cofe2o4 nanoparticles in co-precipitation. the effects of sio2coating on the magnetic properties of cofe2o4 nanoparticles were investigated. the structural, morphological and magnetic properties of as-prepared sample were characterization by x-ray diffraction (xrd), f...

2008
H Y Cui

Since particles such as molecules, atoms and nuclei are composite particles, it is important to recognize that physics must be invariant for the composite particles and their constituent particles, this requirement is called particle invariance in this paper. But difficulties arise immediately because for fermion we use the Dirac equation, for meson we use the Klein-Gordon equation and for clas...

2001
H. Y. Cui

Since the particles such as molecules, atoms and nuclei are composite particles, it is important to recognize that physics must be invariant for the composite particles and their constituent particles, this requirement is called particle invariance in this paper. But difficulties arise immediately because for fermion we use Dirac equation, for meson we use Klein-Gordon equation and for classica...

2009
H. Y. Chung H. Y. Xie P. T. Leung D. P. Tsai

1 Department of Physics, National Taiwan University, Taipei 10617, Taiwan, R. O. C. 2 Instrument Technology Research Center, National Applied Research Laboratory, Hsinchu, Taiwan 300, R. O. C. 3 Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan, R.O.C. 4 Institute of Optoelectronic Sciences, National Taiwan Ocean University, Keelung, Taiwan, R. O. C Abstract The optica...

2000
JOHN A. PELESKO GREGORY A. KRIEGSMANN G. A. KRIEGSMANN

The microwave heating of a ceramic composite is modelled and analysed. The composite consists of many small ceramic particles embedded in a ceramic cement. The composite is assumed to be well insulated, and each particle is assumed to be in imperfect thermal contact with the surrounding cement. Based on these two assumptions an asymptotic theory exploiting the small Biot number and small non-di...

2008
H Y Cui

Since particles such as molecules, atoms and nuclei are composite particles, it is important to recognize that physics must be invariant for the composite particles and their constituent particles, this requirement is called particle invariance in this paper. But difficulties arise immediately because for fermion we use the Dirac equation, for meson we use the Klein-Gordon equation and for clas...

2009
Jiezhu Jin Jianzhong Wu Amalie L. Frischknecht

The morphology of block copolymer and nanoparticle composites depends not only on the copolymer architecture but also on the surface energy, geometry, and volume fraction of the embedding nanoparticles. Toward a quantitative description of the composite structure and associated thermomechanical properties from a molecular perspective, we examined the performance of a nonlocal density functional...

2004
Yulong Li K. T. Ramesh

The mechanical response of a metal–matrix composite to dynamic shearing deformations has been measured, using a new design of the thin-walled tubular specimen for the torsional Kolsky bar experiment that allows working with these difficult-to-machine materials. The advantages of using the new specimen design are as follows: (i) the thickness of the thin wall along the axial direction is very un...

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