好研究的

By researching and analyzing Defending the Goal Line, the paper puts forward alterable goal line, and also researches two methods: the alterable parallel goal line and the alterable across goal line, that can display the defensive effect of the goalie sufficiently.

在研究和分析基于防线的守门员跑位模式的基础上，论文打破了单条防线对守门员的限制，提出了可变防线的思想，研究了基于平行可变防线和交叉可变防线两种守门员防守模型，更好地发挥了守门员的防守作用。

The dynamic model reveals the dynamic action of drillstring-bit-rock system. It is instructive to design new rock bit and study drilling mechanics.

本文中建立的动力学模型能较好的描述钻柱—钻头—岩石系统的动态行为，对于新型钻头的设计以及钻井力学研究都有着较好的指导意义。

Postmenopausal women who want to decrease their risk of colds would be well advised to dust off their sneakers and get moving, suggests a new study led by researchers at Fred Hutchinson Cancer Research Center.

绝经后的妇女要减少他们的风险，感冒会好宜灰尘，他们的运动鞋和动，提出了一种新的实验，由研究人员在Fred Hutchinson癌症研究中心。

Aminobutyric acid in tea was extracted, isolated and determined. Water achieve a better effect than ethanol in extracting γ-aminobutyric acid, and γ-aminobutyric acid content was enhanced by 20%; 732 positive ion resin columns (2.5×50cm) was used to isolate, citric acid and ammonia water were used as elutes, based on pH linear gradient. Results indicated that γ-aminobutyric acid inelute could reach 39%; thin layer scanner could measure the content of γ-aminobutyric acid.

对茶叶中γ-氨基丁酸的提取、分离及检测方法进行了研究，分别采用水和乙醇作为提取溶剂，结果发现用水提取能达到更好的效果，γ-氨基丁酸含量提高20％；同时采用离子交换树脂对γ-氨基丁酸提取液进行分离，提取液上732阳离子树脂柱(2.5 ×50cm)，使用柠檬酸和氨水缓冲液进行pH线性梯度洗脱，洗脱液中γ-氨基丁酸最高浓度达39％；采用薄层扫描仪对γ-氨基丁酸的含量进行检测，研究并确定了检测的条件及参数。

The exchange and adsorption properties of LA, FA and glu on six anion exchange resins were investigated, and the influence of the temperature was also researched, among them weakly basic ion-exchange resin 335 can provide the highest uptake capacity of LA The Freundlich equation can explain the adsorption equilibrium curves of LA on the anion resins better than the Langmuir equation.

在静态吸附性能研究部分，研究了乙酰丙酸、葡萄糖和甲酸在六种阴离子树脂上的静态吸附行为，筛选出吸附性能最好的335树脂，Freundlich方程比 Langmuir方程能更好的描述树脂对乙酰丙酸和甲酸的吸附。

At the same time, because of the coil's compensation, the amplitude of fault current is small.

但是由于消弧线圈的补偿作用，接地故障电流比较小，在干扰和测量误差同时存在的情况下，进行故障选线是比较困难的。20世纪50年代以来就开展了&接地选线&的研究，提出了多种选线方法，但没一种方法可以很好的解决接地故障选线这个难题，所以此问题还有必要进一步研究。

For the second part, the damping behavior of Mg matrix composite was studied. It is found that the graphite fiber achieves better damping capacity than other reinforcements. The phase transformation happened in the Mg matrix can improve damping capacity and with the increase of reinforcement damping capacity can also be improved at high temperature.

其次，对镁基复合材料的阻尼行为的研究，发现石墨纤维比其它增强物具有更好的阻尼效果，基体镁合金的相变过程能提高复合材料的阻尼性能，增加增强物含量能增加复合材料的阻尼且高温下的效果更好。

Recently, using solid clay brick is gradually prohibited, so the new wall material is required to fill up the new architecture. Many sections research on this field, using fly ash to develop new building materials is the mostly adopted method, among the new building materials, fly ash foamed concrete is a noticeable one because of its outstanding merits such as light weight, heat preservation, sound insulation and good resisting earthquake. Using fly ash to develop foamed concrete can not only become fly ash into resources, but also provide a new kind of building materials for the innovation of wall materials, which has good economy and society benefits.

近年来，由于墙改&禁实&政策的实施，市场急需新的墙体材料来填补新建筑所需，许多单位相继开展了各有关研究，综合利用粉煤灰研制开发新型建材逐渐成为了主流，其中多孔混凝土特别是粉煤灰发泡混凝土，正以它突出的轻质、保温、隔音、抗震效果好等优点，成为一种引人注目的建筑材料，利用工业固体废弃物粉煤灰研制发泡混凝土不仅能实现粉煤灰的资源化，而且还可为墙体材料的改革提供一种新型建筑材料，具有较好的经济效益和社会效益。

This article proposed one kind of improvement algorithm in this foundation, this algorithm has defined a filter balance factor formula, according to this formula, we readjustment filter balance factor value appropriately, through controlsling the LMS filter coefficient's freezing and the restoration, we solute echo puzzle perfectly; In the telephone condition examination algorithm aspect, in view of the busy signal examination algorithm which has has only been able to examine the busy signal, but cannot examine the dial tone, hang the staccato the deficiency, this article improves its algorithm to enable it to apply these aspects, make it can be better used in the actual system application.

本文在此基础上提出了一种改进算法，该算法定义了一个滤波器平衡因子的计算公式，根据此公式，适当调整滤波器平衡因子的阀值，通过控制LMS滤波器系数的冻结和恢复，很好的解决了回声的困扰；在话机状态检测算法方面，本文针对已有的忙音检测算法只能检测忙音，而不能检测拨号音、挂断音的不足之处，研究改进其算法使之能够应用到这些方面，更好的为实际系统的应用服务。

In this thesis, downstream energy dissipation and erosion control problem of Yingping power station is studied in the concrete, building the unitary hydraulic model in the laboratory. The scale of this model is 1:40. The energy dissipation effect of this layout in preliminary design is validated and optimized by model experiment. During the test, setting assistant energy dissipation training frusta is put forward and the energy dissipation problem of the project is well settled.

本文以阴坪水电站消能防冲问题为具体研究对象，在实验室建立几何比尺为1：40 的正态水工整体模型，对其初步设计的消能布置方案的消能效果进行模型试验验证与优化研究，提出了设置辅助消能工导流墩的方案，很好地解决了该工程的消能防冲实际问题。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。