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For implementing the encryption/decryption and information hiding for digital multimedia, and aiming to generate enough large cipher key space, the accurate period of high dimension random matrix scrambling transformation is studied with the help of number theory and algebraic theory.

为了适合数字多媒体特性，实施多媒体加密与信息隐藏，生成充分大的密钥空间，使用了数论、近世代数、算法分析等工具，对高维随机矩阵置乱变换的精确周期进行了研究。

Random changes in allele frequency can lead to fixation and the progressive loss of genetic variation from the population.

基因频率的随机变化导致来自种群的遗传变异的固定和逐渐丧失。

Common buckwheat ( F. esculentum ) is an allogamy crop, which is heterogony. There is heterogeneity in the species. To reveal the genetic diversity within cultivar population, In order to explore the sampling strategy that can reveal genetic diversity of buckwheat resources on the molecular level. PCR with intron-splice junction primers and long random primers was employed to reveal the genetic diversity within nine common buckwheat varieties and one tartary buckwheat cultivar population among different individuals. We established the sampling strategy in its genetic diversity study. Then we used the established sampling strategy, and the same PCR markers technique,to analysis the genetic diversity of 86 common buckwheat resources, the main results are as follows

甜荞是花柱异长自交不亲和的异花授粉作物，品种内存在一定的异质性，为了准确揭示甜荞遗传资源的遗传多样性，本研究采用因子分析法对86份甜荞遗传资源农艺性状数据进行分析；采用长随机引物和内含子切接点引物的PCR分子标记技术，对9个甜荞品种和1个苦荞品种不同个体间的遗传多样性进行了分析，建立了甜荞资源遗传多样性研究的取样策略；并利用建立的取样策略，采用PCR标记技术，对这86份甜荞资源的遗传多样性进行了分析，取得如下主要结果

Data stream with random bits, so I will use up my allotment sooner?

数据流与随机位，所以我会用我的分配迟早？

A total of 20.000 random donors of Chinese Han nationality living in Shanghai area were investigated for anti-bodies against IgG allotype by microhemagglutination inhibition test with panel sera of Gm, Km known type and 10 different special anti-D sensitized RBCs.

应用微量血凝抑制试验，Gm、Km谱血清和10种特异性抗D血清致敏红细胞，对上海地区2万名随机汉族献血者作IG同种异型抗体检测。

Alternaria alternata isolates from different places in Yunnan province were analyzed for genetic diversity by using Random Amplified Polymorphic DNA.

运用RAPD分子标记技术分析了来自云南各地24个烟草赤星病菌株的遗传多样性。

Although its mode of operation is very simple, the player needs to use only left / diamonds of shift of right Xiang Jian, alternate key undertakes gyral but begin, but the whirl of diamonds is controlled extremely hard however, can 360 degrees of random rotate.

尽管其操作方式极为简单，玩家只需用左/右方向键移动方块，交叉键进行旋转便可上手，但是方块的旋转却极难控制，可以360度任意旋转。

Parrondo's paradox describes that given two games, both of them are losing, when alternated in a periodic or random fashion, can produce a winning result. In this paper, we theoretically analyze the situation that game A and B are played in any alternating order using discrete Markov chain technique when modulo M is equal to four.

Parrondo悖论定律为对于给定的两个博弈，如果每个博弈输的概率都大于赢的概率，那么当这两个博弈随机或周期进行时就可能产生一种获胜的结果。

The simulation result shows that the approach can effectively limit high frequency random noise of altimeter and compensate delay error.

仿真结果表明该方法可以有效地抑制高度表的高频随机噪声和补偿其延迟误差。

But there are also some limitations when applying traditional fault tree analyzing method to certain systems that are amendable, complex, time consuming and with random failures that occurs randomly.

但是由于其局限性，对于具有可修复、系统复杂、昼夜连续运行、动态随机性故障发生的系统而言，传统故障树分析方法便显得"力不从心"。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。