提高功率的

The results show that the influence of accumulation of targets loss must be considered when evaluating operational effectiveness for fake targets antagonizing ARM and their vulnerability should be reduced, their eradiation power should be improved, and reasonable configuration should be adopted when the number of fake targets is increased to improve the operational effectiveness.

研究结果表明：在评估假目标诱骗对抗ARM的效能时，必须考虑目标损失积累的影响；为提高诱骗效能，在增加假目标数量的同时，应降低其易损性，提高发射功率，并采用合理的布局方案。

Improve the accuracy of the initial rotor position estimator by using the Fourier series expansion.

在永磁同步的马达启动方面，则透过送出不同向量空间角度的定子电压向量脉冲所量测到的d轴定子电流的大小来估测转子的初始位置，并利用d轴定子电流在空间向量角度以2π为周期的特性，应用傅立叶级数分析做曲线拟合的方式提高转子位置估测解析度，以提高转矩/电流比节省不必要的功率浪费。

Firstly, we used the Raman scattering method which can calibrate in real time to measure the O2 (a1 Δ) yield of SOG for the first time in China. The measurement relative error is less than 8%. Based on the data from the experiments, we report the results that the diluent category and ratios influence the O2 (a1 Δ) yield. The relationship of P-τ values and the O2 (a1 Δ) yield of this SOG were given. The effects of distance and bypass of gas transportation on the O2 (a1 Δ) yield are investigated. Secondly, the chlorine utilization was measured by using Raman spectroscopy simultaneously when the O2 (a1 Δ) yield was measured. This method originated with us. The result about the chlorine utilization is coincident with other theoretic and experimental conclusions. The relationship given in this paper between gas stay time in SOG and chlorine utilization offers reference to improve the reaction efficiency and chemical efficiency of COIL. Finally, the partial water vapor pressure at the exit of SOG was measured by absorption spectroscopy. The water vapor fraction and partial pressure have trends changed with the generator total pressure, the diluentratios, and the BHP temperature. These experimental results are very important to improve experimental conditions of SOG, reduce the water vapor fraction, and enhance the output power of COIL.

由侧得的数据得到了加入稀释气体、稀释气体种类以及稀释比例对单重态氧产率的影响，给出了该发生器P一：值与仇产率的关系，还考察了传输距离对仇产率的影响；在国际上首创利用喇曼散射光谱法在侧量产率的同时进行了氯气利用率的检侧，侧试结果与其他理论及实验结果十分相近；给出了气体在发生器中的滞留时间与氯气利用率之间的关系，该结果为提高氧碘化学激光器的反应效率和化学效率提供了参考依据；另外采用了吸收光谱法对发生器出口处的水汽含量进行了测量、得到了水汽分压和百分含量随着发生器压力、稀释气体比例以及BHP温度等的变化情况，该实验结果对于改进发生器工作条件、减少水汽含量、提高氧碘化学激光器的出光功率具有十分重要的指导意义。

When the power system load in a small disturbance, the system itself to maintain the stability of the power transmission capacity, the use of automatic excitation regulator device may reduce the reactance of the generator, and then further to maintain the transformer high-voltage bus voltage constant, so compensation not only its own reactor, but also compensation for the step-up transformer reactance, thus greatly improving the power limits of generators, which greatly increased the static stability of power system.

当电力系统的负载发生微小的扰动时，系统本身保持稳定送电的能力，使用自动励磁调节装置，则可减小发电机的电抗，再进一步维持变压器高压母线的电压恒定，这样不仅完全补偿了自身的电抗，而且还补偿了升压变压器的电抗，这样就大大提高了发电机的极限功率，即大大地提高了电力系统的静态稳定。

Due to the fact that the intercarrier spacing in OFDM is relatively small, OFDM transceivers are somewhat more sensitive to phase noise compared to single carrier transceivers. Thus this problem must be carefully considered in designing an OFDMbased system since an accurate prediction of the tolerable phase noise can allow designer to relax system specifications. According to spectrum theorem, two components of phase noise were analyzed: common phase error and intercarrier interference. On the basis of the analysis, the performance of OFDM was given for the case where phase noise has been added to the signal, and an optimal design criterion for OFDM parameters was proposed that allows to improve the phase noise error correcting capabilities in OFDM receiver.

由于采用子载波间相互正交的结构，OFDM系统对于由本地振荡器不稳定性所导致的相位噪声影响非常敏感，针对公共相位误差CPE和载波间干扰ICI两种影响表现形式不同的干扰项，从功率谱密度函数这一独特角度分析了相位噪声对OFDM系统性能的影响，提出了旨在提高接收机抵抗相位噪声能力的OFDM系统关键参数优化与设计准则，可在对所设计OFDM系统性能加以提高的同时，有效降低对接收机前端模拟振荡器件和相位噪声抑制单元的性能指标要求，从而降低接收机硬件实现成本。

Compared to the sample without ultrasonic treatment, it was found that, for AZ31 magnesium melt alloy treated by ultrasonic, the refined grain size and the inproved distribution of grain with its shape of oval-shaped or spherical can be obtained, and the precipitation inside Al matrix was inhibited The Mg17 Al12 precipitates distributed mainly along the grain boundary and hardness was improved remarkedly.

通过对铁合金AZ31进行熔体超声处理发现，处理后试样的晶粒较未进行超声处理的试样有明显细化，分布均匀程度提高，形状呈椭圆状或球状，合金元素Al在晶粒内的析出被抑制，Mg17Al12第二相的析出主要集中于晶界，硬度有明显提高，并且通过试验确定出了最佳处理功率和时间，为超声波在铸造生产中的应用提供了依据。

The results show that when an electromagnetic field with 1000 Hz frequency and 20 kW power is imposed, the surface roughness of hollow billets is decreased by 50%, the solidification structure is refined, the tensile strength is improved by 40%, and the elongation is improved by 50%, averagely; when the power is heightened to 30 kW, the solidification structure is coarsened and the mechanical properties are worsened.

研究结果表明：当施加频率为1kHz的电磁场时，空心管坯的表面粗糙度降低了约50％；当施加功率为20kW的电磁场时，空心铜管坯的组织得到细化，抗拉强度提高了约40％，延伸率提高了50%；当施加30kW的电磁场时，铜管坯组织粗化，力学性能下降。

By comparison with conventional hydrostatic transmission, its power matches load well because it is adjusted by servo system. By comparison with secondary adjusting system being applied in industry newly, HESTS not only adjusts operation mechanism to match the system output and load well, but also adjusts engine or hydraulic pump, and manipulates the direction of power flow inputing or outputing the Energy Storage Unit actively. Therefore, HESTS can get energy of whole system matched well, increase the efficiency of system and performance of main machine. First, a HESTS applied in vehicle was designed.

由于对执行机构采用自动调节，系统的功率匹配合理，效率有较大提高；同新近发展起来并已被应用的二次调节系统相比，静压储能传动不仅通过调节执行机构来达到系统输出与负载的良好匹配，而且还调节原动机或液压泵，以及主动控制系统中储能元件的能量流动，因此能达到整个系统的能量合理分配，从而提高了系统的效率和整机的性能。

The results show that laser-arc welding can achieve full penetration by single-path butt jointing through appropriate parameters; Y shape groove with 8 mm truncated edge can enhance the penetration ability of laser-arc hybrid welding. Low welding speed is good for penetration, however the limitation still exists for hick plates joint. Gap is significant factor of penetration when work pieces is large thickness. The hardness of thick plates joint shows that there is big difference in mold of vertical thermal cycle using laser-arc hybrid welding.

结果表明：通过激光功率等焊接规范匹配，激光-电弧复合焊接能实现20 mm厚板的全熔透单道对接；钝边为8 mm的Y形坡口有助于提高厚板激光-电弧复合焊缝熔透能力；降低焊接速度有利于提高熔深能力；工件厚度较大时，装配间隙对焊缝熔深能力的影响较为显著；接头硬度表明厚板激光复合焊焊缝纵向热循环模式存在较大差异。

In order to improve the stability and reliability of the models, especially in the marine platform drilling rig in order to meet the high standards and strict power requirements, CPC Jinan Diesel power demands in accordance with domestic oil market situation and the company markets products in the oil field use, decided to 4012 Long-stroke diesel engine is fully optimized and updated, and comprehensively improve the models of economy, adaptability, especially in reliability to achieve new breakthroughs to make it into a completely independent intellectual property rights, high reliability, power, good , fuel consumption is low, high degree of automation of the diesel engine, making it the leading, world-class level, can completely replace the current oil market, the corresponding power of China's imports of aircraft-grade new model.

为了提高该机型的稳定性和可靠性，特别是为了满足海洋平台对钻机动力的高标准严要求，中油济柴根据国内石油市场动力需求现状和公司产品在油田市场的使用情况，决定对4012型长冲程柴油机进行全面优化和更新，全面提高该机型的经济性、适应性，尤其在可靠性方面实现新的突破，使其成为具有完全自主知识产权的、可靠性高、动力性好、油耗低、自动化程度高的柴油机，使其成为国内领先、具备世界一流水平、可完全替代目前我国油田市场上相应功率档次进口机的新机型。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。