衰减的

At last, we are concerned with the global existence and asymptotic behavior of smooth solution to the initial boundary value problem for the bipolar hydrodynamic model with the Neumann and Dirichlet boundary condition in the one-dimensional case, respectively. The difficulties from the coupled action between electrons and holes are carefully dealt with.

另外，本文也深入研究一维空间双极半导体流体动力学模型初边值问题光滑解的整体存在性及其衰减性，分别讨论了两类在实际应用中重要的边值条件，克服了由于电子和空穴之间的耦合作用所带来的困难。

The disbandment of task-oriented organization which is a conscious and active process, is the content included in its establishment, and the weakening of psychological resources of society and organization members is its fundamental impetus.

在任务型组织的解散过程中，社会以及组织成员的心理资源的衰减是基本的促动因素。

And at the same time, through discussing the mechanism of earth wave absorbing tomography, it is known the CT of seismic absorption imaging method is better than the wave velocity imaging method in the identify ability of faultage crushed zone whose body structural plane is flabbiness and the dimensions is small.

阐述了地震波在粘弹性介质传播过程中具有的衰减特性，探讨了地震波吸收层析成像的机理，得知地震吸收CT成像方法，对岩体软弱结构面、裂隙和规模较小的断层破碎带的识别能力，要强于波速成像方法。

The main parts of the thesis include:(1) Oxidative characteristics of new electrodeless discharge lamp: The microwave power output, spectrum of MWL, extinction of lights in dye solution and production of hydroxyl radical and ozone (O3) are studied in detail.

实验主要内容如下：(1)微波无极紫外灯的光氧化性能：考察了微波最大利用率、光源的发射光谱、光线在水中的衰减、产生·OH和O3的规律。

A new technique is presented for maximizing the band-edge selectivity of elliptic filters, and then the equal ripple parameter of the quasi-elliptic function can be calculated when the band-edge selectivities of the elliptic function and quasi-elliptic function are the same.

提出了标准椭圆函数的边带优化方法，在此基础上使标准椭圆函数与修正后的准椭圆函数在边带上的衰减相等，得到准椭圆函数的等波纹系数。

Because of the decrease of the resin flow and the reduction of fiber bundle voids, the penetrating process of the matrix is a limited process. Increasing impregnating time can't guarantee to get complete penetration.

由于树脂受力的衰减和纤维束孔隙率的减小，树脂在纤维束中的渗透是一个有限过程，延长浸渍时间不能保证树脂在纤维束中的完全渗透。

However,for free decay method,its range of changing frequency is very narrow and the initial states of samples are not easily repeated because of the effect of crystallization;for forced oscillation method,the measuring results are seriously affected by crystallization,which is caused by slow heating rates.

然而，自由衰减法有限的变频范围，以及由于受晶化的影响，使两次升温测量时样品的初始状态不易重复；用强迫振动法测量时，同步变频条件限制了升温速率，造成金属玻璃的晶化过程严重影响了测量结果。

The results indicated that the higher the gastightness in the stacks was,the longer the pressure decay and maintaining time of fumigant were.

以压力衰减法测定两个相似的薄膜密封包装玉米垛的气密性、采用PH3和CO2 混合熏蒸后PH3和CO2 气体浓度在粮垛内的保持情况以及对玉米象、米象和赤拟谷盗 3种害虫处理后的结果。

With calculation of the 3D flow affecting the non-submerged groyne, the comparison between calculative and experimental data means that the dynamical compressive models can accurately simulate the free surface and the flow field around groyne.

污染物在丁坝附近的扩散模拟显示了丁坝后的回流区减慢了污染物浓度的衰减，丁坝附近水流的湍动使得冲淤条件下污染物悬沙吸附量和溶解态浓度明显增大。

In the third chapter, we have described the effect of time-dependent couplings, and at the same time we have also thought the effect when there is decay in the system.

在第三章中，我们指出了随时间变化的耦合对两原子纠缠的影响，同时还考虑了在衰减存在的情况下的影响。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。