中分

Methods: A total of 142 vibrio choleras strains collected from outbreaks in Fujian in 2005 were analyzed by serotyping, phage-biotyping and Pulsed Field Gel Electrophoresis.

采用血清学分型法、噬菌体－生物分型法及PFGE分型法对2005年霍乱疫情中不同来源的142株霍乱弧菌进行分型分析。

In this Paper the joint profile expression and fractal theory are reviewed, and the fractaltheory is used to study the frictional angle of the rock joint.

本文首先简要介绍节理形貌的描述方法和分形几何理论，然后将分形理论引人岩体节理摩擦角的研究中，得出了用分形维数表示摩擦角的经验公式。

In our approach, a two-block message is still needed to produce a collision, the first block being only one MSB different while the second block remains the same.

本文所提出的1-MSB输入差分碰撞技术中，仍然采用两个消息分组，但其中第一个分组仅第九个消息字的最高位需要差分，而第二个消息分组可无需差分，即第二个消息分组碰撞是一个伪碰撞（Pseudo-collision）。

Dead branches or knots in different sizes of tree was studied and different branch development phases of growth,suppression,death and self-pruning was analyzed to evaluate the effect that knot size and distribution impact on timber quality.Branch and knot dynamic models were developed using stand and tree variables.Based on multipleunit stepwise regression method, the individual tree growth model was established using forest and crown factors as the variable. The best taper equation model of Larix olgensis was bucking data of 130 sample trees selected in the studied area.

本研究以不同年龄、不同密度及不同立地条件的落叶松人工林作为研究对象，基于19块标准地中95株标准木的树干解析、枝解析及节子剖析数据，揭示了不同林分条件下林木的枝条数量及在树冠内的空间分布格局、生长发育规律；研究了不同大小树木的死枝和节子大小及其变化规律，分析了枝条的生长、被压、寿命和自然整枝过程，评价了节子大小和分布对木材质量的影响；以林分变量、林木变量和着枝深度等为自变量建立枝条生长和节子大小的动态预测模型；选择林分因子和林木的树冠因子作为竞争因子，用多元逐步回归的方法建立落叶松人工林与距离无关的单木生长模型，并根据研究地区选取的130株造材样木数据，建立了落叶松人工林最佳削度方程。

The dispersion behavior of ultrafine silica in aqueous system was investigated by the sedimentation test,and the effect of hyperdispersant PSE was studied comparing with traditional dispersants. Furthermore,the mechanism of PSE in the systems was revealed through calculating the interaction energies between particles.

摘 要：用沉降法研究了超微SiO2在水溶液中的分散行为，探讨了超分散剂PSE与传统分散剂的分散效果，并通过颗粒间相互作用能计算进一步研究了超分散剂PSE的作用机理。

It is pointed out that the liquid bridge formed by extern water between two particles as well as particle and screen plate is the main factor which leadS to the deterioration of screening process.

潮湿细粒煤炭的粘附现象是导致筛分过程恶化的最主要原因，为解决这一问题，本文采用理论分析的方法对筛分作业中潮湿细粒煤的团聚机理进行了研究，指出外在水分在颗粒之间以及颗粒同筛面之间形成的液桥是造成筛分过程恶化的首要因素。

a novel miniaturization bow tie rfid tag antenna is proposed based on the triangular sierpinski fractal microstrip.the port characteristics of the proposed antenna are presented by simulation.at the same time,the resonance frequency,the radiation pattern and the efficiency of the sierpinski tag antenna is given.the results of the simulation show that multiple frequency band can be obtained by varying the dimensions of the fractal structure.hence this kind of antenna can be used into the rfid tag antenna very conveniently.

摘 要：基于三角形sierpinski微带分形贴片，提出了一种新型的小尺寸领带结rfid标签天线设计。通过仿真，给出了该分形天线的端口特性，同时给出了该领带结型sierpinski标签天线的谐振频率、方向图以及天线效率。结果表明，采用不同维数的分形结构，可以实现多频段的工作特性，因而该天线可以很方便地应用于rfid电子标签中。

Dynamic exercises. However, artistry penalties for the repetition ofelements should be applied as per the Code of Points.

8.7 在女子三人动力性套路中可以完成4个水平卧接住的动作，其艺术扣分和动作重复扣分依据评分规则扣分。

Quentin Richardson hit a 3-pointer with 2:44 to play to put the Heat in front before Wade scored nine of their final 11 points.

理查德森在比赛还剩2：44秒时命中三分使热火领先，随后就是韦德的表演时刻，他拿下了球队最后11分中的9分。

After the deduction of high order temporal and special difference approximation to the wave equation, the snapshots of wave propagation in an infinite monoclinic media and synthetic three components surface and VSP data for a flat layered model are presented.

推导了交错网格中时间和空间上的高阶差分近似公式，并针对二维单斜各向异性介质，给出了具体的空间差分网格的形式。在上述理论的基础上，利用交错网格高阶有限差分技术，首次对单斜各向异性介质中波的传播特性进行了模拟。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。