论文部分内容阅读
[!--newstext--]
[!--title--]
【摘 要】
：
Small angle X-ray scattering experiments have been performed to study the microstructure of mesoporous silica materials prepared by condensation of tetraethylor
【机 构】
：
State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, T
【出 处】
：
中国物理（英文版）
【发表日期】
：
2001年5期
其他文献
Using the Langevin Monte Carlo method, the influence of friction on the directed motion of a Brownian particle driven by an exteal noise source is investigated.
The numerical solution of the Helmholtz equation for barotropic atmosphere is estimated by use of the waveletGalerkin method. The solution involves the decompos
,DESIGNING A DIFFRACTIVE OPTICAL ELEMENT FOR CONTROLLING THE BEAM PROFILE IN A THREE-DIMENSIONAL SPA
We have designed a spatially quantized diffractive optical element (DOE) for controlling the beam profile in a three-dimensional space with the help of the simu
水稻秃尖现象是由顶端小穗退化造成的,由此带来单穗粒数减少,单株产量降低,从而严重影响水稻单产。水稻穗顶部退化突变体L-05261来自于水稻组织培养后代,穗顶部明显退化,且稳定遗传。本研究在对L-05261水稻穗顶部退化性状遗传分析的基础上进行了QTL分析,发现了位于第3、第5和第8染色体上的3个QTL qPAA3、qPAA5、qPAA8,构建了用于定位3个QTL的亚群体,并最终对qPAA8进行了精
高校美术教育中继承传统文化,不仅能扩展学生视野,丰富表现形式,提高审美观,而且还能增强学生的爱国主义热情,从而将祖国传统文化推陈出新、发扬光大。为此,本文将分析高校美
In this paper, the fabrication of a large cone angle near-field optical fibre probe, using the two-step chemical etching method and bent probe, is introduced, a
,Nanoscale carbon tubules deposited in anodic aluminium oxide template: a study of soft x-ray transm
Well-aligned, catalyst-free nanoscale carbon tubules array was prepared by organic compound vapour deposition method using anodic aluminium oxide (AAO) as a tem
An exact nonlinear analytical solution of an open V-type inversionless lasing system with two incoherent pump fields, off-resonant driving and probe fields is g
Harmonic emission was studied from a plasma produced by ultrashort laser pulses. Unlike the harmonics fromplasmas created by long (ns) laser pulses, the 3/2 har
The universality principle of the free energy density functional and the ‘test particle’ trick by Percus are combined to construct the approximate free energy