追踪

"Endometrial ablation for menorrhagia permits uterine conservation in more than 80% of women over age 45 years when followed up to 8 years," the study authors write."For women aged younger than 40 years, probability of hysterectomy is 40%....Additional studies with longer follow-up are necessary to determine whether endometrial ablation is more likely to replace, or merely delay, hysterectomy in women aged younger than 40 years at the time of the procedure."

研究作者写道，子宫内膜烧灼术治疗月经过多，可以让80%以上的45岁以上妇女在八年追踪期间都保留子宫；对於40岁以下妇女，可能有40%机率会进行子宫切除，需要更长追踪期间的其他研究来确认子宫内膜烧灼术是否可以取代旧技术，或者只是延迟那些进行手术时40岁以下者的子宫切除术时间而已。

Based on this, a new WENO difference scheme which based on Dispersion-Relation-Preserving relation is developed, and representative test cases with this scheme for computational aeroacoustics problems has been implemented and compared in order to test capability of wave capturing; In addition, WENO schemes generally do not converge at high order in the presence of contact discontinuity of Euler equations, so a conservative front tracking technique coupling WENO schemes and Level Set method to simulate the translating density profile is presented here, and numerical simulation with this technique for representative test case has been implemented and results show the desired accuracy.

本文研究了高阶精度加权基本无振荡格式及其在双曲守恒律方程中的应用，在此基础上作了两个方面的工作：一是针对高频声波问题构造出一种基于保色散关系的WENO有限差分格式，并对计算气动声学问题的代表性算例进行了大量数值实验，比较了该格式捕捉波数的能力；另外，针对高阶WENO格式在处理Euler方程的接触间断时精度有所降低的问题，研究了利用界面追踪技术Level Set方法和高阶激波捕捉WENO格式相结合的一种守恒追踪方法，并且给出有代表性的密度滑移面问题的算例，得到一致高阶精度的数值模拟结果。

Through many experiments, we find tracing without ray method can solve the problem. The method applies the refractional wave's geometric properties, and exports the velocity models.

无射线追踪法层析静校正将首波方法的稳定性和回转波方法的灵活性结合起来，隐式使用折射波的几何特性，并由此导出速度模型，达到不使用显式射线追踪法进行层析重建的目的。

A traitor tracing scheme based on the Chinese remainder theorem is introduced. Propose another scheme based on the B-F scheme.

介绍了一种基于中国剩余定理的叛逆者追踪方案，并对Boneh D 和Franklin M 提出的叛逆者追踪方案[25]做了改进，使之能更好地适用于实际。

Its most advantage is: it is suitable for any complex geology structure, the"iterative"ray tracing method is based on Fermat"minimum travel time principle", it uses Taylor expansion and finds the solution segmentally and iteratively, then modifies the initial ray path.

迭代射线追踪方法是根据Fermat最小旅行时原理，应用Taylor展开，分段迭代求解，再逐次修改初始射线路径，完成全射线路径的迭代求解过程，其最大优点是计算的速度快，追踪射线效率高。

Methods General and matched follow-up pulmonary function studies lasting for 14 years were performed on 45 retired nickel miners, 37 silicotic patients and 42 control workers.

本文对某镍矿45名退休矿工、37名离尘后定诊矽肺患者和40名对照矿工的肺通气功能进行了14年的追踪与配对追踪观察。

Ray tracing: Determining the arrival time at detector locations by following raypaths which obey Snell's law through a model for which the velocity distribution is known.

射线追踪：通过追踪服从斯奈尔定律的射线穿过速度分布已知的模型，进而来测定其到达检波器位置所需的时间。

In addition to reduce tracking error caused by various illumination conditions on stage, we considered only U and V values in CIE LUV color space to calculate the color differences in successive images.

此外，追踪演算法将撷取影像之RGB值转换至CIE LUV色彩空间后，仅针对其中代表色度资讯之U、V值计算影像色差，可减少舞台影像因照明改变所造成之追踪误差。

A comparison is conducted to evaluate the performance of the optical mouse, the touch pad and the track point.

结果显示虚拟追踪球手套滑鼠的移动效能虽然不及一般桌上型的光学滑鼠，但在与同为行动装置的触碰板以及轨迹杆比较，虚拟追踪球手套滑鼠却以将近高出一倍的移动效率远远超过触碰板以及轨迹杆。

Trinity: Uh-huh.Morpheus: The pill you took is part of a trace program. It's designed to disrupt yourinput/output carrier signal so we can pinpoint your location.

药丸里有追踪程序用来追踪你身体所在的位置它中断你的载体信号，这样我们就能准确定点你的空间

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。