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ZHANG XIANWEN LIANG BENZHONG Department of Mathematics Xinyang Teacher''''s College Xinyang 《高校应用数学学报(英文版)》1996,(1)
The well-posedness for the time-dependent neutron transport equationwith integral boundary conditions is established in L~1 space. Some spectral propertiesof the transport operator are discussed, the dominant eigenvalue is proved existing,and furthermore, the conservative law of migrating particle numbers is established. 相似文献
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Peng YUHENG Wang BENZHONG Chen WEIYOU Liu SHIYONG 《Optical and Quantum Electronics》1997,29(10):985-990
We present a method to control the nucleation sites of InAs self-assembled quantum dots (QDs). Tensile-strained material,
such as GaAs used here, was grown on InP substrates before InAs deposition. This thin GaAs layer can provide a surface with
grid-pattern trenches which have the same function as atomic-steps and are promising for the formation of QDs with controlled
nucleation sites. Atom force microscopy (AFM) measurement was performed and the AFM images indicate that the InAs islands
grown with our technique are grid-pattern aligned and have good homogeneity and low size fluctuation. In addition, another
kind of three-dimensional structure with larger size would coexist with normal QDs if a 30nm thick GaAs layer was deposited.
This revised version was published online in June 2006 with corrections to the Cover Date. 相似文献
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