变化点

And Fewer fixations were required to find the target in the repeated configurations than in the new configurations. Furthermore, the distance of the first saccade from the target were smaller for the repeated than for the new displays. In addition, the probabilities of initial fixation landed on the target were greater for the repeated than for the new contexts.

该机制在眼动指标上表现为：干扰子的空间布局固定时，与空间布局变化时相比，找到目标所需的注视点个数更少、首注视点与目标位置的距离更近以及首注视点更可能落在目标位置。

The time-domain characteristic point and change of signal saltation edge of pulse signal were examined, according to the relationship between wavelet zero-crossing and signal saltation edge.

方法根据小波变换过零点和信号突变点之间的关系，分别运用小波变换过零点表征检测脉象时域特征点和各特征点脉搏信号变化的快慢。

Small aspect change will lead to a big change of the complex amplitude, since, although the variation of the range of each scatterer to radar is very small, it is still large enough compared to the small wavelength and may cause a big phase change.

当视角有微小变化时，虽然各散射点到雷达的距离变化并不大，但相对于微波波长，其相位差的变化相当大，从而使各分辨单元到复振幅有大的起伏，即一维距离像的方向敏感性十分敏感。

In the region upstream of vortex breakdown, the sectional streamlines emanating from the leading edge spiral inward to primary vortex and in the region downstream of the breakdown, on the other hand, the streamlines separating from the leading edge are not entrained into the vortex core in the instantaneous sense. Along the axis, the topology of the primary vortex alters several times starting from stable focus near the apex to unstable focus, and lasts back to stable focus near wake edge, the stable hmit cycle and unstable limit cycle are shown in this evolution.

发现在截面流线谱中，即使奇点的类型、数目及位置相同，奇点的连接方式也有可能不同；旋涡破裂点前，主涡由来自前缘的力线卷绕而成，主涡焦点与前缘半鞍点相连，旋涡破裂后，来自前缘的力线不再卷入主涡，主涡焦点与对称面上的鞍点相连：在流体由翼尖流向后缘的过程中，截面流线谱的拓扑结构发生了多次变化，主涡焦点相继由稳定状态转变为不稳定状态，最后又转化为稳定状态，并先后出现了稳定的极限环及不稳定极限环。

To define the spatial distribution pattern of point objects, a new approach is introduced, which employs the variation coefficient CV of the area of Voronoi polygons.

：点集的Voronoi图是对点集的一种空间分割方式，不同分布的点集可以形成Voronoi多边形面积的不同变化，可以通过计算点状目标的Voronoi多边形面积的变异系数方法，来分析点状目标的空间分布特征。

From the analysis of the historical and measured data, some tendencies of flood in Zhejiang in the global change are predicted: 1low water year will take the upper hand in ten years or more, the global change will make the temporal and spatial changes of flood in Zhejiang more violent, and the flood disasters in coast area more serious.

中文摘要：根据历史和实测资料分析，对于全球变化下浙江近期洪水的运作大势，可得如下几点认识：（1）在未来的十几年之内，浙江省将处在枯水年占优势的阶段，但全球变化将使浙江洪水的时空变化更为剧烈，使沿海地区的洪水灾害更为严重。

In this study, sulfate radical concentration from 4 drip water points (PL1, PL2, SH, JG) in the Shihua cave have been monitored for three years, and those from the drip water point was monitored for two years. Drip discharges show three types of response to surface precipitation variations: rapid response, response with associated time-lag and stable. The results show that:(1) SO(superscript 2- subscript 4) concentration in rapid response drip water increases sharply during rain period and has a exponential relationship with drip rate;(2) in the drip water of lag response, SO(superscript 2- subscript 4) concentration has no significant incrcase during rainfall, but they show a increasing trend during a long-term monitoring;(3) SO(superscript 2- subscript 4) concentration at the stable drip site is low and has no obvious change during wet weason.

本文通过对石花洞洞穴4个滴水点（JG， SH， PL1和PL2）硫酸根浓度近3个水文年的分析测定，结果表明：响应降雨快的滴水点滴水SO(上标 2-下标 4)浓度升高幅度最明显，且滴水SO(上标 2-下标 4)浓度与滴率成指数关系；滞后响应降雨的观测点滴水SO(上标 2-下标 4)浓度雨季升高幅度不明显，但在长期观测期间有明显增加的趋势；对降雨没有响应的滴水点，其SO(上标 2-下标 4)浓度低且雨季没有明显变化。

At each time point, we observed morphological changes, in situ detected DNA breaks, and observed expression changes of production of lEGs c-Fos and DNA repair enzyme APE/Ref-1 which participated in many kinds of DNA repairs. Results in the experiment were shown as follow:DHE stain indicates: The model of rat MCAO/R was credible, and the damaged regions included cortex (lobus frontalis, lobus arietalis, lobus occipitalis et al and caudatum.

本次实验采用大鼠大脑中动脉阻塞再灌注模型，将健康雄性SD大鼠随机分为正常组、假手术组和MCAO2h再灌注2h、6h、12h、24h、48h、72h组，观察各时间点损伤区域神经元和细胞的形态学变化，原位检测DNA断裂损伤，检测DNA修复酶APE/Ref-1表达变化情况以及IEGs产物c-Fos表达变化情况。

We applied the theoretical results combined with GPS and absolute gravity observation data to study the subduction rate of the India plate to Eurasia subduction, the crustal deformation and gravity changes caused by the co-seismic dislocation of the Lijiang and Tang Gula earthquakes. From this study, the absolute gravity changes at the western Yunnan and Lhasa stations were founded.

通过本项目的研究，我们从重复绝对重力观测结果中发现了滇西地区、青藏高原的拉萨点绝对重力值的变化；研究了丽江7.0地震同震位错与重力变化的关系；印度板块与欧亚大陆俯冲等引起的重力变化。

When the viewpoint is changing quickly, the rendering algorithm ignores some details of the diffuse component, otherwise the scene is rendered more precisely. The Specula highlight is dependent of the viewpoint, it must be processed in real time. We present an algorithm to get rid of the area that does not contain specula highlight quickly and calculate only the area that contains the specula highlight. In order to calculate the specula reflection and refraction component, we presented a new raytracing algorithm based on the environment map transformation. The environment maps are constructed at the sample points of the scene in the preprocessing phase. We add depth information in the environment maps and generate the exact reflection and refraction intensity with the transformation of a few pixels.

对于表面光亮度漫射分量，由于它与视点无关，可以把面片按照光照细节的分布预剖分成层次结构，然后在实时漫游时根据场景变化的快慢决定绘制的细致程度；对于镜面高光分量，由于它与视点有关，必须实时处理，我们提出了一种快速高光裁剪算法，通过简单测试，去除那些不包含高光的区域，只处理包含高光的区域；对于镜面反射分量和折射分量，我们提出了一种基于环境映照变换的快速光线跟踪算法，预先在场景的离散采样点处建立环境映照，然后根据入射点的位置，把邻近采样点处的环境映照上相关象素处的可见点变换过来，求取反射分量和折射分量。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。