查询词典 Constants

Its basic principle, classification, applications, and new developments are introduced and described in detail. 2 A new optimum method named simulated annealing algorithm is introduced and applied in the analysis of the ellipsometric spectra. 3 Some new ferroelectric materials have been studied by the method mentioned above, and some new results achieved as follows. First, Ca-modified lead titanate ferroelectric thin films have been prepared by solgel processing. The optical constants spectra of the 〓(x=0.0-0.4, 0.24) films have been obtained, the structure properties of the thin films have been studied by XRD and AFM.

回顾了椭偏光谱近一个世纪的产生发展的历程，系统介绍了椭偏光谱的基本原理、物理模型，以及广泛应用与发展状况。2）介绍模拟退火算法这一新型的优化方法，并将其结合Forouhi-Bloomer模型和Sellmeier模型应用到椭偏光谱分析中。3）用上述方法分析几种新型铁电材料的光学性质，并获得以下结果：首先，第一次获得钛酸铅钙系列、钙原子含量分别为0％、10％、20％、24％、30％、40％的铁电薄膜的光学常数谱，并结合XRD和SEM分析其结构，发现随钙含量的增加，薄膜晶相发生变化。

Three types of humic acids, i.e. peat, lignite and weathering coal (named as C-HA, H-HA and F-HA, respectively), were extracted and stability constants of Mn(superscript 2+) and Zn(superscript 2+) with the three humic acids were investigated.

以分别来源于草碳、褐煤和风化煤的腐殖酸为供试材料，采用离子交换平衡法研究了不同腐殖化程度的腐殖酸与Mn(上标 2+)和Zn(上标 2+)的络合稳定常数，并探讨了环境pH值对络合稳定常数的影响。

Kinetics of hydroxyl-terminated polybutadiene/ phenyl isocyanate, bonding agent (BA-5)/PI and antioxidant H/PI were studied in toluene/dimethyl sulphoxide solution. The rate constants and the activation parameters were calculated. The results show that the reactionary rate of these three active hydrogen components decreased in same condition.

分别对端羟基聚丁二烯/苯异氰酸酯，键合剂(BA-5)/PI和防老剂H（N，N'-二苯基对苯二胺）／PI在甲苯／二甲基亚砜混合溶液体系中进行了反应动力学研究，计算了相应体系的反应速率和活化能。

The Stern-Volmer constants of those quenchers for P were determined.

N一甲基丙烯酞一N'一啥淀基呱嗦是将N一咄吮基呱嗓

We found that the action integrals correspond to the constants of motion of the quantal levels.

即周期轨迹中短周期轨迹的作用量的整数值正好可与量子态有对应关系。

These survived periodic orbits though scarce in a chaotic system, form the invariant skeleton of the phase space and possess important characters relating to the constants of motion and the quantal levels.

但这些存活下来的周期轨迹是体系相空间的运动骨架。

The constants in the constitutive equation of granular material have been determined according to the experimental results and analytical formulas based on shock polars.

粉尘形成的松散堆积物在流动和变形时，颗粒碰撞产生的应力是不可忽略的，该值与颗粒体积分数有关，其关系式称为堆积粉尘的本构方程。

Infrared optical constants of PZT andTiO3 thin films on LaNiO3 bufferized platinized silicon wafers were obtained using infrared spectroscopic ellipsometer.

实验获得多种组分PZT和TiO3铁电薄膜的红外光学常数。

Based on the PECs, the spectroscopic constants of the states have been determined and compared with the theoretical and experimental results available to affirm the accuracy and liability of the calculations.

在所得解析势能函数的基础上，通过解核运动的薛定谔方程得到各电子态的光谱常数，并与现有的理论和实验值比较来验证计算的可靠性和准确性。

It averagesquare displacement must depend both on the forceconstants of Bi cation and the constants governingrotation of BO6 octahedra.

软模的平均平方位移同时依赖于Bi离子位移的力常数和使八面体转动的力常数。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。