传输效率

The parameter of laser energy transfer efficiency is used in the new model with a clear physical meaning for the first time. The mean absorption factor of laser induced plasma to the laser within the keyhole is calculated according to different welding parameters using the relative intensity method of spectral lines.

首次有机地将激光焊接能量传输效率这一重要的焊接参数以明确的物理意义引入数学模型中；通过谱线相对强度法计算推导出每一个焊接规范下小孔内等离子体对激光的平均吸收系数。

The finite-difference time-domain method is adopted to simulate the propagation of the optical wave in the beam splitter.

采用时域有限差分法模拟了光波在分束器中的传播行为，并计算了分束器的传输效率。

Compared with that the beam splitter is based on multimode waveguide of triangular lattice PBG with the same parameter,the beam splitter in this paper has much shorter size and higher output efficiency.

因而本文所设计的分束器具有更小的器件尺寸和更高的传输效率，易于大规模集成的实现，在未来的集成光路中具有广泛的应用价值。

Methods in the second group use the cyclic prefix inserted into the OFDM symbol, they do not affect the data rate, but the performance is not agreeable, because the cyclic prefix is contaminated by inter-symbol interference in the multipath channel.

第二大类方法利用了OFDM符号中插入的循环前缀，不影响数据的传输效率，但由于循环前缀受到严重的符号间干扰的影响，这类方法性能不佳。

Through the sharpness of double channel within diskless write functions can improve diskless workstations and double transmission efficiency between the server, so as to improve the efficiency of actual use.

通过锐起无盘的双通道回写功能可以双倍提高无盘工作站与服务器之间的传输效率，从而提高实际使用的效率。

Thissystems. This paper sets up two-dimensional and three-dimensional models of dissociable transformer by ANSYS. 2-D analysis takes no

本文利用ANSYS 软件，分析了可分离变压器各种可能会影响传输效率的因素，并为实际系统选择模型提供了参考依据。

Aiming at these problems, an expectation maximum based MAP algorithm is proposed and the performance is analyzed. The proposed algorithm avoids large matrix operations by using the EM algorithm to decompose the MIMO channel estimation problem into a series of single input single output problems. Besides, a joint estimation is carried out over multiple OFDM symbols in order to enhance the data transmission efficiency and the estimative performance of the proposed algorithm.

该算法利用EM算法把多输入输出信道估计问题化简为一系列独立的单输入输出问题，避免了大规模矩阵运算，降低了MAP算法的计算复杂度；为进一步改善MAP算法的数据传输效率及其估计性能，可通过对多个连续的OFDM符号进行联合信道估计。

We've developed compression schemes and file formats that achive conductivity ,but.

我们同时也开发了一套压缩方案和文件格式用于提高传输效率，但是

Counting the number of loss particles and the number of remaining particles can get the value of nebulization effeciency.

通过统计求和可以得到进入ICP的粒子数n，它与总的粒子数N的比值n/N×100%即为雾化效率或传输效率。

The computational efficiency and transmission efficiency of the existing schemes is too low.

基于双难题具有消息恢复的签名方案研究甚少，仅有的一些方案都存在计算效率和传输效率过低的问题。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。