改进

It is found out that the social environment in carrying out the new curriculum demand prompt optimization; there exist unadapted factors between modes of thinking, system, mechanism, leadership in school management and the teachers'carrying out of the new curriculum and there are the problems that the teachers'modes of thinking remain at an undeveloped stage, academic quality is low, the condition of existence and development is not so good, and some teachers'enthusiasm to curriculum reform is not so high and they even resist it.

针对武川县农村初中教师实施新课程面临的问题，笔者提出了改进的对策及建议：进一步优化社会环境；创新学校管理，树立与新课程相适应的学校管理观念，建立与新课程相适应的学校管理制度和管理机制，改进校长对课程的领导；采取措施，加强教师培训，提高教师素质，创建新型的教师文化，关注农村教师的生存和发展困境，为他们创设良好的工作、生活和心理环境，切实解决农村教师在课程改革中面临的实际困难和问题。

Based on Wu's elimination method and "divide-and-conquer" strategy, the undetermined coefficient method for constructing polynomial conservation laws of nonlinear differential-difference equations was improved. Furthermore, a Maple package CLawDDEs was developed to automatically derive conserved densities and associated fluxes of polynomial differential-difference equations.

基于吴消元法和"分治"策略，改进了基于标度不变性构造非线性微分差分方程多项式形式守恒律的待定系数算法，并在计算机代数系统Maple上实现了改进后的算法，其中的软件包CLawDDEs可自动推导出微分差分方程的守恒密度及连带流。

In this paper, a thermal simulation model of a LED driver was established. The thermal field and thermal stress analysis of the driver was done by using the software EFD Pro 8.2, and the temperature rise from various parts and the temperature field distribution of the PCB were obtained. By analyzing the reasons leading to overheating and unideal heat distribution, corresponding thermal simulation using an improved model was carried out. Finally, the comparison and analysis of experimental measurement results and simulation results were given.

本文基于计算流体力学中的有限体积法，建立了该变换器的热仿真模型，利用EFD Pro 8.2软件，对驱动电源内部进行了热场及热应力分析，得到了各部分的温升情况和整个电源温度场的分布情况，分析导致PCB局部过热的原因，然后针对热仿真得出的不理想的热分布情况提出了改进的方法，进行了模型改进，对PCB板上的各部分进行合理的重新布局，并再次进行了热仿真，最终得到了较为理想的结果，最后给出了实验测量结果与仿真结果的对比及分析。

They are but improved means to an unimproved end, an end which it was already but too easy to arrive at; as railroads lead to Boston or New York.

它们只是对毫无改进的目标提供一些改进过的方法，其实这目标早就可以很容易地到达的；就像直达波士顿或直达纽约的铁路那样。

Digital simulation shows that the improved algorithm's estimate mean and relative estimate er-ror are better than those of the original unimproved algorithm, so the improved algorithm can be widely used in storage reliability research.

数字仿真结果显示，改进算法的估计均值和相对估计误差明显优于改进前的条件中位数算法，可广泛地应用于电子产品的贮存可靠性研究。

Study on effect of spillway trough on deposition efficiency of intermittent scouring sand basins;2. Traditional sediment tank has been improved in three aspects by putting an adjusting flow wall in the entrance of water, a spillway trough on spillway crest along the flow direction, redesigning the flush device and an auxiliary fl ush facility.

通过在沉砂池的进水处加调流墙、在溢流堰上沿水流方向设溢流槽、对排砂装置进行改进以及设置辅助冲砂设施三个方面对传统平流式沉砂池进行了改进，设计提出了一种新型平流式沉砂池，可以大大提高沉砂池的沉淀效率，特别是对细颗粒泥砂的沉淀具有很好的效果。

As well, it should be noted that, in the companies with greater growth opportunities, the managerial ownership will influence the cash holdings more significantly. At last, the policy of cash dividend has a positive effect on the cash holdings. Utile now, we haven't found out any theoretical support on the phenomenon yet.

论文针对以上实证研究的结果，提出了如何改进公司的治理结构，包括对股权结构的改善和改进管理层激励和约束机制的建议，以更好地制定现金持有政策，更有效地利用现金这一流动性最强、盈利能力最弱的特殊资产。

In addition, circuit technology refinements were made to boost light utilisation efficiency and improve image quality.

而且，电路技术的改进提高了感光效率和改进了图象素质。

For solving Multi-objective and multi-restriction optimization problem , this paper used non-dominated ranking method, elitist preserve strategy, niche approaches, and presented an individual vector module adaptive function as wash out rule, then an improved Pareto multi-objective optimization with genetic algorithm was found.

为解决含多个目标和多约束的优化问题，本文结合了非支配排序思想、精英保留策略，小生境技术，并对传统的小生境技术中基于个体适应度的淘汰技术进行改进，提出了一种向量模适应度函数来作为淘汰准则，得到一种改进的Pareto遗传多目标优化算法。

Aimed at the problem in the Kalman multiuser detector with a rapid performance degradation in the presence of signature waveform mismatch in the multipath channel, an improved blind multiuser detection algorithm is presented based on Kalman filtering. The method introduces the subspace technique to modify original state space model, thus the detector is modeled as a vector in the signal subspace.

针对卡尔曼滤波盲多用户检测算法在多径信道存在波形失配的情况下性能迅速下降的问题，引入子空间概念对原状态空间模型进行了改进，进而得到了改进的盲多用户检测算法。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。