查询词典 plateau problem

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。

Study on Zoning of Vegetation Rehabilitation in Bashang Plateau ;2. problem of underground water utilization in well irrigating region of Bashang plateau is discussed.

笔者详细分析了坝上地区地下水资源分布的地区差异、赋存特征及脆弱性，重点对坝上井灌区地下水资源利用中存在的问题和对策进行了探讨。

In 1990s, the third stage is the most important period of research on sandy desertification in Qinghai-Xizang plateau, the sandy desertification problem in almost all over the Qinghai-Xizang plateau was studied, its research content is comprehensive and systematic and a lot of research results were gotten.

最后，分析了研究中存在的主要问题，如研究区域不尽平衡、基础研究较为薄弱、理论研究有待深入和防治技术亟待提高等，提出今后青藏高原沙漠化研究的主攻方向与主要研究项目。

A novel hybrid algorithm, which combines predictor-corrector primal-dual interior point method and genetic algorithm, is presented for dynamic and static reactive optimization in this dissertation. The algorithm fully make use of the advantage of interior point method in solving successive optimization problem and the advantage of genetic algorithm in solving discrete optimization problem. The original problem is divided into three parts: total successive problem, discrete problem and successive problem.

结合内点法和遗传算法，本文提出了一种新颖的混合算法用于求解动、静态无功优化问题，算法充分利用了内点法易于求解连续优化问题和遗传算法易于求解离散优化问题的优势，将原优化问题分解为初步的连续优化问题、离散变量优化问题、连续变量优化问题这三个子问题分别求解。

After a further analysis based on the empirical results,a trial probe on the cognitiveprocessing mechanism of the problem representation of the word problem in two types of MLDwas made by the author.The MRD performed much poorer than the MLD only in the mostdifficult equation listing of word problem and the medium and most difficult problemrepresentation of word problem,which showed no difference in computation and comprehensionof simple meaning of the problem,but the gap between two types of MLD became wide as afunction of difficulty and cognitive loading.It indicated that the MLD only had some advantage over MRD for they used more cognitive skills to solve the problem.

基于以上实验的结果，对两类数学困难小学生的应用题问题表征的认知机制作如下推断：混合型数学困难学生仅在高难度水平的应用题列式成绩和中高难度水平应用题问题表征水平上比单纯型数学困难学生得分显著低下，表明两类数学困难小学生在计算能力与理解简单题意的能力上并无差异，但随着难度提高，认知负荷加重，两类数学困难学生在应用题解题上的差异得以突显，表明当需要运用更多的认知能力解决问题时，单纯型数学困难学生比混合型困难学生更具优势。

About 75% of the state is within the Cumberland Plateau and Allegheny Plateau regions.

大约75 ％的国家是在坎伯兰高原和阿勒格尼高原地区。

In addition, antiphase relationship in precipitation changes between the northern Tibetan Plateau (climatically controlled by westerlies) and southern Tibetan Plateau (mainly influenced by Indian monsoon circulation) exists on decadal to centennial timescale.

不仅如此，在分属西风和季风影响区的青藏高原北部和南部，年代际-百年尺度上降水变化也表现出反相位关系。

Great paleoenvironment change of the basins that located in northeast region of Tibet plateau is closely related to the second uplift of Tibet plateau and the formation of Asia monsoon. This conclusion was found by the analysis and correlation of magnetstratigraphy、 biostratigraphy、lithohorizon in xining basin、 lanzhou basin and linxia basin.

西宁盆地、兰州盆地、临夏盆地的磁性地层、生物地层、岩石地层的对比表明位于青藏高原东北部的周缘盆地在青藏高原的第二次隆升时被迫的进行了相应的应力调整和变形，并在刚成形的亚洲季风共同作用下，导致自身古环境发生重大变迁。

She also wanted to cross China from east to west, to start from BeiJing, through Hua Bei Campagna, to get Loess Plateau, and though silk road to arrive at Pamirs Plateau.

她还想自东向西横穿中国，从北京出发，走华北平原，到黄土高原，走丝绸古道，最终到达帕米尔高原。

Inner Mongolia plateau in the northern part of the country, West of Gansu, and Xinjiang border and Chilian Mountain foot of a hill, east to Daxinanling, including the Inner Mongolia Autonomous Region and most Gansu, Ningxia, Hebei Province wait, the district part is the second largest plateau.

内蒙古高原在我国北部，西起甘肃、新疆边境和祁连山麓，东到大兴安岭，包括内蒙古自治区大部和甘肃、宁夏、河北等到省、区的一部分，是我国第二大高原。

I had a lovely dog named PiPi, he was one of my best friends.

我曾经有过一只小狗，它的名字叫皮皮，它很善良，它是我最忠实的朋友。

Newly ovulated mouse oocytes were cultured in the CZB medium supplemented with different concentrations of pyruvate before treated for activation or assayed for MPF activity.

我们猜测卵母细胞在不含丙酮酸的条件下老化的更快，并且卵丘细胞可能通过消耗不含葡萄糖的CZB中的丙酮酸从而促进卵母细胞老化。