特性或方法

There is at least one alternative axiomatization of probability theory by means of expectations on C-star algebras of random variables . In this case the method goes by the name of Gelfand-Naimark-Segal construction.

这是类似于两种方法来衡量和一体化，在这里，可以选择建造措施的规定和界定积分第一后，或构建积分第一，并确定一套措施，积分特性的功能。

To better understand the roles of LsrA protein in nodulation, a series of analyses of nodules using scanning electron microscopy, genetic and biochemical approaches have been carried out. Our analyses suggest that the lsrA1 nodules contain bacteroids in the invasion and establishing zone only. The lsrA gene expression is active early in the invasion zone and activated later than bacA genes. The lost of LsrA protein dramatically reduced the expression of nifA and fixK, and completely blocked the expression of the nifH gene for nitrogenase. LsrA protein functions early in the bacteroid development and it is essential for the development nitrogen fixing bacteroids.

前期的工作中，苜蓿中华根瘤菌Rm1021中90个候选LysR基因已经被定向插入突变，并筛选在自生生长时期、共生生长时期的表型，以期寻找更多在自生状态或共生固氮中有功能的LysR转录因子。1 针对前期鉴定出的共生固氮必需的lsrA基因，我们应用了一系列扫描电子显微镜技术、生物化学、分子遗传学等方法，发现lsrA基因主要在根瘤侵染区开始表达，表达时序也在侵染阶段左右，但晚于bacA基因表达；LsrA蛋白缺失后根瘤固氮区中缺乏具有固氮能力的类菌体，nifA和fixK基因的转录水平降低，nifH基因的转录被完全阻断，因此LsrA蛋白为根瘤发育所必需，是新的根瘤发育信号传导途径成员。2 通过表型筛选我们鉴定了苜蓿中华根瘤菌的oxyR基因，并研究了它的调节特性。oxyR突变后，苜蓿中华根瘤菌对过氧化氢敏感性提高，适应性降低。

With the high sensitivity of biomarker assays,the exposure levels and its biological effect in population exposed to low level carcinogens for a long time can be more directly measured,and the dose-effect relationship between biomarkers and a specific risk can be more accurately descripted The study on biomarker,which still stayed in primary stage,presented good prospect in the field of risk assessment on environmental health In this review,data are summarized on the role of biomarkers that are used for...

利用生物标志物高灵敏的特性，可以直接测量人群长期低剂量的暴露水平及其效应水平，能够较准确地估计生物标志物水平与特定危险性之间的关系，这方面的研究尚属起步阶段，但在环境健康危险度评价中具有很好的发展前景。对生物标志物的选择，其在低剂量致癌物暴露危险度评价中的作用，评价方法或途径及存在的问题进行了总结。

The system consists of four parts such as Data Management of Product Model,Finite Element Analysis, Optimal Design and Graphics Drawing; and its main work is searching for an optimal scheme of chief axis with Sequential Quadratic Programming Method by finite element static and dynamic characteristical analysis of the axis and saving the results of design as documents or outputing them.

系统出产品模型数据管理、有限元分析、优化设计和图形绘制四部分组成。通过对车床主轴二维垂直剖面力学模型的有限元静、动态特性分析，采用序列二次规划的优化设计方法寻求主轴设计的优化方案，并将优化设计结果形成文档或输出。提出产品设计模型的概念，通过它可自动生成有限元分析模型、优化设计模型和图形模型三个子模型，将有限元分析、优化设计、图形绘制三部分结合在一起。

By the method, we can obtain the convergence factor of each subband according to every subband statistical character driven by a standard Gaussian white noise. The hard threshold of every directional subband of each scale is determined by modifying the 3σ(or 4σ) rule in terms of corresponding effect factor.

该方法根据标准高斯白噪声作用在每个子带上的统计特性，得到每个子带的收敛因子；使用该收敛因子对标准的3σ(或4σ)准则进行修正来确定不同尺度不同方向子带的硬阈值；并在轮廓波域进行子带硬阈值处理之后，使用自适应维纳滤波进行后处理。

Its subject coverage includes: properties of composites after impact or loading; matrix and processing developments to improve fracture toughness and delamination resistance; and testing methods.

它的主题涉及的范围包括：冲击或装载后的复合材料特性；基与处理技术的发展对断裂韧性和抗脱层性能的改善；测试方法。

The new filter not only has the advantages of the incoordinate interval filter, which can solve the local filter\'s problem that the different navigation device measurements have different periods in real system ,but also has the advantages of preventing distortion of filter which caused by the imperfect arithmetic method or the incorrect statistical characteristic of noises.

对MINS/北斗/GPS多传感器信息融合算法进行了研究，提出了一种改进的非等间隔联邦滤波器，这种滤波算法除了具有非等间隔联邦滤波器的优点即可以解决各局部滤波器的量测信息的周期不同外，还具有抑制因计算方法不完善或系统噪声统计特性不确切而引起的滤波发散的功能。

The invention allows to replace the aforementioned bristles or filaments having nondirectional mechanical properties, i.e. properties that are identical in all directions at an angle to the longitudinal axis, with film strips as the cleaning elements, said strips being produced from a sheet of film by suitable methods of separation.

代替具有不定向(即，在与纵轴相交的所有方向上相同)机械特性的这种硬毛或长丝，本发明提出使用薄膜条(4)作为清洁元件(3)，所述薄膜条是通过成型方法的合适的分离而由一片薄膜制成的。

Therefore, it is necessary to test the computation results and further modify the computation method based on the comparison between the numerical solution of the linear or non-linear equations and the trial value or the computation results of typical cases.

所以，需依靠对非线性数学方程的数值实验及数值解与试验或典型算例结果的比较和物理特性分析，验证数值计算结果，进一步改进计算方法。

Operating modal analysis is a new technology of modal analysis. The operating modal parameters obtained only by responses of operating machinery or ambient excitation accord with the real operating situations and the boundary conditions, and illustrate the real dynamic behavior of the operating machine.

工作模态分析方法是一种新的模态分析技术，利用工作状态或环境激励下的响应信号识别出的工作模态参数符合实际工况及边界条件，能真实的反映结构在工作状态下的动力学特性。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。