查询词典 donor impurity

The scaling rule for hydrogenic impurity binding energy and the Virial theorem value in quantum wells and wires of rectangular cross section with three different section ratios are studied through the variational method.

利用变分法计算了矩形量子线和量子阱中类氢杂质束缚能的度规法则和维里定理值。

Relation of hydrogenic impurity binding energy,effective Bohr a _ and virial theorem value and quantum dots size and studied variationally by using variational wave functions of containing two parameters.

选用含有2个变分参数的波函数，利用变分法计算了无限深球形量子点中施主杂质态的束缚能、杂质有效玻尔半径、维里定理值等随量子点尺度的变化关系。

The ground-state energy and the average number of virtual phonons around the electron of a hydrogenic impurity confined in a parabolic quantum dot are calculated using the squeezed-state variational approach,which is based on two successive canonical transformations and uses a displaced-oscillator type unitary transformation to deal with the bilinear terms,which are usually neglected.

李伟萍 内蒙古赤峰学院物理与电子信息工程系，赤峰 024000肖景林内蒙古民族大学物理与电子信息学院，通辽 028043采用基于逐次正则变换的变分方法，利用单模压缩态变换处理包含声子产生湮灭算符的双线性项，研究了抛物量子点中束缚极化子的性质。

The kaolin in Weibei is pure,idiomorphism of kaolinite is not so good,but crystallization is in order;,while the kaolin in Fugu is also pure,only little impurity,fine grained,good crystallized,and is a kind of high quality kaolin resource.

但结晶有序；府谷高岭岩质量纯，杂质少，粒度细、结晶好，是一种优质高岭土矿。渭北高岭岩可用作&双90&、莫来石、4A沸石等的原料，广泛用于陶瓷工业、造纸工业；府谷高岭岩可用作生产纸张涂布、高级日用细瓷原料。

The disclosed combined detection method for high-pure SO3 gas with SO2 as impurity comprises: constant-volume sampling at least 60Deg better 60-80Deg to avoid liquidation of SO3, absorbing with alkali solution to obtain total volume percentage concentration of high-pure SO3 gas and SO2; processing the absorbed liquid, using iodometric method to obtain SO2 volume percentage concentration and then the SO3 concentration.

一种高纯度SO 3 气体及其中杂质SO 2 气体浓度联合检测的方法，包括用吸收装置进行定容采样，然后用碱溶液吸收，得到高纯度SO 3 气体及其中杂质SO 2 气体的总体积百分浓度，再对吸收液进行处理后，采用直接碘量法测得SO 2 气体的体积百分浓度，将高纯度SO 3 气体及其中杂质SO 2 气体的总体积百分浓度减去SO 2 气体的体积百分浓度即为高纯度SO 3 气体浓度，其所述吸收装置进行定容采样时，是在至少60℃以上的热环境中进行的。

However, the properties of isoelectronic impurity doped crystals have not been clearly understood, such as optical and electrical properties, mechanism for dislocation reduction, and so on; In addition, the effects of isoelectronic impurities on defects and lattice mismatch of heterostructures have not been given much attention.

然而对于等电子杂质在材料中的其它物理行为，等电子杂质降低位错的机理，以及等电子杂质对异质外延材料中缺陷和晶格失配的影响等问题研究得并不深入。

Woodson or apocynum venetum Linn as raw material, it utilizes the method of decoction and alcohol sedimentation to remove impurity. After extract is separated by macroporous adsorptive resins, then use polydextran gel LH-20 to purify, obtain isoquercitrin. Compared with the method of traditional silica gel column chromatography, this method has characteristics such as: experiment period is short, dissipation of organic dissolvent is little, yield of produced product is high, and purity coefficient is fine and so on. Isoquercitrin produced by this invention can be provided for medicine research or used as chemistry control article.

Woodson或罗布麻的叶为原料，采用水提醇沉除杂的方法，提取液经大孔吸附树脂分离后再用葡聚糖凝胶LH-20纯化得罗布麻甲素，此法与传统硅胶柱层析的方法相比，具有实验周期短，有机溶媒消耗少，制得的产品得率高和纯度好的特点，本法制得的罗布麻甲素可供药物研究或化学对照品使用。

The results show that the single-phase materials with strong magnetoelectric properties at room temperature are obtained by the inducing deformation of crystal lattice and the elimination of impurity.

结果表明，通过诱导晶格变形、消除体系杂相，能获得具有强室温磁电性能的单相磁电材料。

Magnetic separation intake purolator, which can avoid metallics and large grained impurity enter into the oil way.

磁力分离吸口滤油器，有效的防止金属物、大颗粒杂质进入油路。

Silica impurity in the high purity water that is used for MOVPE(Metallorganic Vapor Phase Epitaxy) processes affects the quality of GaAs material dramatically.

引言 二氧化硅含量是高纯水制造中一个重要的质量指标，对于用于锅炉补给水和电子工业用水，这一指标尤其重要。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。