查询词典 tracing

In this paper, we present a method for calculating focal loci in complex media by means of a minimum traveltime tree algorithm for ray tracing.

本文基于最小走时树射线追踪技术，提出了一种计算复杂介质中震源轨迹的方法。

The computation of seismic traveltime is a core matter of ray-tracing method, and its accuracy affects the accuracy of the path and the accurate degree of the forward problem of seismic ray simulation.

地震波旅行时计算是射线追踪方法的核心问题，其精度直接影响着路径的精度和正演模拟的准确程度。

In this paper, we have proposed a flexible encryption blocks selection buyer-seller watermarking protocol integrated the RSA asymmetric encryption system and homomorphism mechanism to protect the ownership of digital contents and fit real life. And consider the secondhand transaction in the real life. We also propose a buyer-reseller watermarking protocol based on the flexible encrypt blocks selection buyer-seller watermarking protocol to offer a solution of secondhand transaction. In our scheme, it's more light data transport requirement than other schemes. All roles in protocol will benefit by their participation. Our scheme can overcome various of the known attacks and security problems in the buyer-seller watermark protocol, such as buyer's right problem, unbinding problem, piracy tracing problem, conspiracy problem, buyer's participation in the dispute resolution problem, man-in-the-middle attack problem and anonymous problem. Furthermore, the seller and arbiter can verify the buyer's watermark without decrypting it in our scheme.

本文除应用RSA非对称式加密与秘密同态机制，提出了一个符合现实生活中买卖交易行为、可弹性调整加密范围数位内容买卖浮水印协定，强化了目前研究中对於数位内容买-卖浮水印协定的安全性，并进一步的考量二手商品交易行为，在可弹性调整加密范围数位内容买卖浮水印协定基础上，提出一个结合数位内容二手买卖与盗版追踪的二手数位内容买卖浮水印协定，达到让参予买卖的角色可以在安全的情形下完成二手数位内容所有权的移转并从中获取相对应利益的目标的数位内容转卖浮水印协定来增强了目前数位内容买卖浮水印协定研究中对於二手交易欠缺之处，解决了数位内容买卖浮水印协定中所可能遭遇的重要安全性议题，如：买方权益、盗版追踪、资讯不连结、共谋、买方需要参与仲裁、中间者攻击及匿名性问题。

Complex power flow tracing vai real and imaginary current components.

利用电流的实部与虚部分量进行复功率追踪。

In this paper, the effects of the rigid body motions and low frequency surface errors on the image quality were analyzed. Quadratic equations were used to build the mathematical model of the Wolter type I and II X-ray telescopes and reduce the computational complexity of ray tracing. With the help of a self-developed optical surface analysis code, the effects of the perturbations of the mirrors on the image quality was analyzed and the growth of the image spot formed by deformed telescopes was calculated, this is important for giving the reasonable fabrication tolerance.

在本篇文章中，详细分析了刚体运动误差和低频表面误差对成像质量的影响；使用空间解析几何学的二次曲面方程建立Wolter I、II型X射线掠入射望远镜镜片的数学模型，降低光线追踪的计算复杂度；借助自主开发的光学仿真软件分析了国内研制的X射线成像望远镜的刚体运动误差和低频表面误差对成像质量的影响，计算出像点艾里斑半径均方根值随误差变化的增长率，对工程上提出合理的制造公差的误差容限有重要的指导意义。

Using the ray tracing and Monte Carlo as well as the experimental fitting data, we present a numerical simulation model for pumping cavities of the multisegment Nd:glass amplifier.

采用光线追迹和蒙特卡罗法以及实验拟合数据，建立了多段钕玻璃放大器闪光灯泵浦腔的数值计算模型。

Since much rough drawing and sketch-work is done on thin tracing papers, brush media such as water-color and tempera are unusable, since they will buckle the paper.

因为许多草图和草稿绘制于薄的描图纸上，故湿介质笔刷如水彩笔刷和蛋彩笔刷不能用，因其会弄皱纸张。

Keeping track and tracing of family lineages and history is not an easy task which many assumes can be done just by affixing a collection of names to a pedigree chart.

跟踪和追查他们的家庭谱系和历史不是一件容易的事，许多假设可以做到的只是张贴收集地名的系谱图。

She applauds the strategy of taking an exceptional group of people and then tracing the findings back in an animal model.

她赞扬这种首先在独特的人群组中追踪，然后再在动物身上做实验的方法。

She applauds the strategy of taking an exceptional group of people and then tracing the findings back in an animal model.

她赞同这种研究策略——先把异常的人群作为研究对象，然后把所发现的情况通过动物模型加以验证。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48