计数

The aim of this study was to explore the potential relationship between the enhancement of instant hemostatic function in vivo of cryopreserved platelets and its procoagulative related molecule activities. The ability of platelet binding factor Ⅴ, density of GPIb-Ⅸ-Ⅴ(CD42a) at platelet member surface were detected by flow cytometry, the clotting time induced by activated platelets were evaluated by coagulometer and platelet count, MPⅤ and PDW were measured by hemocytometer before and after fresh platelets were cryopreserved.

为了探索血小板冰冻保存后膜表面促凝血活性相关分子变化与冰冻血小板体内即刻止凝血功能增强之间的可能联系，用流式细胞术检测了新鲜血小板冰冻保存前后Ⅴ因子结合能力、血小板膜表面GPIb-Ⅸ-Ⅴ分子(CD42a)密度，用血凝仪测定激活血小板诱导血浆凝固时间变化，用血细胞计数仪测定血小板计数、MPⅤ和PDW。

Some basic properties of σ- LFSR over F4 are studied, such as nonlinearity, cycle structure distribution of state graph, the largest period and counting problem related. The conclusions are as follows:The coefficient ring of σ-LFSR is isomorphic to the matrix ring over F,. The cycle structure of σ- LFSR is consistent with that of the determinant of the corresponding polynomial matrix if and only if the feedback polynomial of - LFSR does not contain nontrivial factor over F2,. The counting formula of the number of σ- LFSR with inconsistent cycle structure is also showed in that part. The period of σ-LFSR with degree n is maximum if and only if the determinant of the corresponding polynomial matrix is the primitive polynomial with order 2n over F2,.

本文研究了有限域F_4上的σ-LFSR的一些基本性质，如非奇异性、状态图的圈结构的分布、最大圈的充要条件及相关的计数问题等，得到以下结论：σ-LFSR的系数环同构于F_2上的矩阵环；σ-LFSR的状态图的圈结构与对应的多项式矩阵的行列式的圈结构一致的充要条件为σ-LFSR的反馈多项式不含有非平凡的F_2上的因式，给出了圈结构不一致的σ-LFSR的计数公式； n次σ-LFSR周期达到最大，当且仅当对应多项式矩阵的行列式为F_2上的2n次本原多项式。

At present it is very difficult to predict all the RNA secondary structures. This paper describes RNA secondary structure prediction methods from 1970\' to this day in a systematic way some. Tracing back and following the tracks of prediction methods the author made a summary of RNA research progress and situation while a enumeration problem of RNA secondary structure is studied with the method of combinatorial enumeration.

目前所有有关RNA二级结构的预测算法要预测出所有序列的二级结构仍然很困难，本文系统介绍了从上世纪70年代以来发展至今的各类RNA二级结构预测算法，从对RNA结构预测方法的追溯和跟踪，对当今RNA研究的进展和形势做了一个总结，并且应用组合计数的技巧解决了一类RNA二级结构的计数问题。

NHEK945 proliferation was assessed by MTT assay and direct cell count with a Coulter Counter.

人表皮细胞NHEK945增生采用MTT测定法和细胞计数仪直接计数法。

The acquisition time of TCSPC FLIM depends on the number of pixels of the image,on the required lifetime accuracy,and on the count rate available from the sample.

基于时间相关单光子计数的荧光寿命成像的获取时间取决于成像的图像尺寸、样品寿命的精度及样品计数率。

The design of the working circuit of PMT in photon counting system affected the detectability of photon counting system.

光子计数系统中光电倍增管的外围工作电路设计得是否合理，对光子计数系统的性能有很大影响。

According to pulse oddment counting principle,a pulse signal counting circuit for differential ring lasers is designed based on XC3S400AN,a kind of FPGA chip with high performance.

根据脉冲零头计数原理，应用高性能的FPGA芯片XC3S400AN，基于VHDL结构描述语言，对高精度高频率时钟信号进行时序控制及同步处理，设计出一种四频差动激光陀螺脉冲信号计数电路，并进行了实验测试。

According to pulse oddment counting principle, a pulse signal counting circuit for differential ring lasers is designed based on XC3S400AN, a kind of FPGA chip with high performance. The structure of the circuit is described in VHDL language and realized through sequence control and synchronization process of high accuracy/frequency clock signal.

根据脉冲零头计数原理，应用高性能的FPGA芯片XC3S400AN，基于VHDL结构描述语言，对高精度高频率时钟信号进行时序控制及同步处理，设计出一种四频差动激光陀螺脉冲信号计数电路，并进行了实验测试。

The design for a multi-functional digital clock, with a year, month, day, hours, minutes and seconds count display to a 24-hour cycle count; have proof functions and the whole point timekeeping function.

本文为一个多功能的数字钟设计，具有年、月、日、时、分、秒计数显示功能，以24小时循环计数；具有校对功能以及整点报时功能。

The tool cycle counter including a numerical display to indicate a cycle count, an actuator which is actuated by completion of a tool cycle, a counter assembly for recording a cycle count in response to actuation of the actuator, and being operably associated with the numerical display, and a substantially cylindrical outer housing encasing the counter assembly.

该工具循环计数器包括用来显示一循环计数的数字显示装置、通过工具循环的完成促动的致动器、用于相应于致动器的促动而记录下一循环计数并且与所述数字显示装置操作连接的计数器组件以及包围着所述计数器组件的基本上为圆柱形的外壳。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。