查询词典 falling gradient

Using the formula about the magnetic flux density induced by coil which deduced by Biot-Savart law,this paper deduces the formula about random point's magnetic flux density of hollow column solenoid and deduces the formulas about axial specific magnetic force and radial specific magnetic force by using the field gradient expression of binary function and the expression of specific magnetic force .

利用二元函数的梯度公式及比磁力公式可以得到磁性颗粒在厚壁圆环线圈所产生的磁场任意点的比磁力的轴向分量和径向分量。

Objective To study the method of preparing Vinorelbine Bitartrate in liposomes by pH gradient method.

目的 优选pH梯度法制备重酒石酸长春瑞滨脂质体的制备工艺。

Methods pH gradient method was used to prepare Vinorelbine Bitartrate 1iposomes.The entrapment rate was examined by Sephadex G50 minicolumn centrifugation.

采用pH梯度法制备重酒石酸长春瑞滨脂质体，用Sephadex G50柱层析法测定包封率，考察影响包封率的因素。

Methods The vinorelbine bitartrate liposome was prepared by pH gradient method. Sephadex G-50 and cation exchange resin could entirely separate free vinorelbine bitartrate from liposomes. The concentration of vinorelbine bitartrate was determined by HPLC. The result was analyzed with SPSS.

pH梯度法制备重酒石酸长春瑞滨脂质体，分别以葡聚糖凝胶Sephadex G-50和阳离子交换树脂装柱，离心分离脂质体和游离药物，采用HPLC法测定药物含量，计算包封率，并用SPSS软件进行t检验。

We have calculated the electronic structure of zinc blende structure ZnS under different high pressures by means of plane wave pseudo-potential methodwith generalized gradient approximationin this paper.

引言ZnS是Ⅱ-Ⅵ族半导体材料中一种重要的半导体材料[1—3]，它有闪锌矿和纤锌矿两种不同的结构，有着非常宽的带隙，具有优良的电光特性和广泛的应用前景，已经越来越得到人们的关注。

The band gaps of ternary zinc blende BxIn1-xP and BxGa1-xP alloys are calculated using first principles in the generalized gradient approximation,and their bowing parameters are obtained.

利用第一性原理计算方法，用广义梯度近似处理电子之间的交换关联能，计算了BxIn1-xP，BxGa1-xP的带隙结构。

Prior to Mendel's work, the dominant theory of heredity was one of blending inheritance, which proposes that the traits of the parents blend or mix in a smooth, continuous gradient in the offspring.

之前，孟德尔的工作，占主导地位的理论，遗传是一个混合遗产，其中建议性状父母混合或组合顺利，连续梯度的后代。

To avoid blurring of the real edge, this algorithm also combined the gradient information of several block boundaries to distinguish the blockiness and the real edge.

为了避免真实边缘被模糊，该块效应消除算法还联合多个块边界的梯度信息来区分块效应与真实边缘。

In order to obtain a more accurate prediction of intersection between the temperature gradient measured at sub-seafloor and the gas hydrate phase boundary curve i.e.

为了能更准确的求得天然气水合物稳定生成的底部，即海床的地温梯度与天然气水合物稳定曲线的交点。

And the control volume finite difference method based on the boundary fitted curve line coordinate for the coupling model of whole system;(2)introduction of the relative temperature gradient function Sv , which is used to determine the evolution of crystal / melt interface shape, because the shape of the crystal / melt interface during crystal growth is an important factor in determining the crystal quality.

本文采用数值模拟方法，研究了传热对晶体生长的影响，包括以下几个方面：(1)建立了晶体的简化模型，熔体的简化模型和相应的数值计算方法；为了从总体上研究晶体生长的动态特性，首次导出了旋成体曲线座标系的SIMPLEC算法，并成功地应用于晶体生长的整体模拟。

There are different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式，可以避免教学形成模式後的僵化现象。