查询词典 sampling distribution

In view of these shortcomings this frequency meter has made the radical innovation in the design its merit is: Uses the core component is the advanced monolithic special-purpose frequency measurement component -- monolithic frequency meter the integration rate is high the volume is small consumes the electricity province function has realized the frequency meter high integration and the microminiaturization; So long as the monolithic frequency meter adds on the crystal oscillator the measuring range choice the frequency demonstrated and so on the very few components then constitute DC to the 10MHz miniature basic frequency measurement electric circuit; But the biggest merit was this frequency meter has realized monolithic frequency meter frequency sampling electric circuit and the monolithic microcomputer three between hardware and the software connection completely caused the frequency measurement measuring range the choice the frequency data survey the sampling as well as the code frontier transformation and the data dump possible monolithic microcomputer software programming automatically to carry on thus has realized the frequency measurement and the sampling work intellectualizes completely causes this system already to be possible to constitute a miniature intelligence to measure rate the instrument core electric circuit independently also might take in the large-scale automatic control or a test system intelligent subsystem.

摘要传统的测频仪器体积很大，耗能量大，主要靠手工操作，而最大的缺点是不可编程，其量程转换、数据测量、采样控制和处理等均不能通过程序指令来进行控制，无法作为一个微型智能子系统与某一大型自动控制或测试系统进行接口。针对这些缺点，本频率计再设计上作了根本的革新，其优点是：所用核心器件是先进的单片专用测频器件——单片频率计，集成度高，体积小，耗电省，功能强，实现了频率计的高度集成化和微型化；单片频率计只要加上晶振、量程选择、频率显示等很晌慰的器件即可构成一个DC至10MHz的微型基本测频电路；而最大的优点则是本频率计完全实现了单片频率计、频率采样与单片微机三者之间的硬件与软件接口，使得测频量程的选择、频率数据的测量、采样以及编码的边境转换和数据的转储均可能过单片微机的软件编程自动进行，从而实现了测频与采样工作的完全智能化，使得本系统既可独立构成一个微型智能测率仪器的核心电路，也可作为大型自动控制或测试系统中的一个智能子系统。关键词高度集成化，单片机，频率计，电路

The performance of the digital system is dependent on the sampling period T.Larger sampling periods usually give rise to higher overshoots in the step response, and eventually may cause instability if the sampling period is too large.

的业绩数字系统是依赖于采样周期吨放大采样期间通常会导致更高的overshoots的阶跃响应，并最终可能会导致不稳定，如果采样周期太大。

The phosphorus forms and BAP vary with horizontal and vertical positions. The total phosphorus, inorganic phosphorus, BAY, and iron-phosphorus contents were high at a depth of 0~20 cm at the first sampling point, and then decreased at 20-40 cm of depth. This shows that the potential release capacity of P at 0-20 cm of depth is higher. The concentrations of total phosphorus and inorganic phosphorus decreased at 0~20 cm of depth and increased at 20~40 cm of depth at the second sampling point, but BAY and Fe-P increased along with the depth consistently. This shows that the deeper layer at the second sampling point had a higher potential release capacity of phosphorus.

不同地点沉积物各磷形态和BAP的垂向变化有较大的差异。1号采样点的总磷、无机磷、铁磷和BAP质量比在沉积0~20 cm处较高，20~40 cm逐渐减小，说明0~20 cm内释磷潜力较大；2号采样点的总磷和无机磷质量比先减小，20~40 cm逐渐增加，而BAP和铁磷质量比随深度增加呈上升趋势，说明2点深层具有较大的释磷潜力。

Factors influencing the tensile strength of polymerizer head sample were introduced,which included the sampling position,sampling direction,sampling quantity and the cross section shape of sample.

介绍了影响聚合釜封头试样拉伸性能的因素：取样部位、取样方向和取样数量及试样的横截面形状。

This sampler is mounted along the pipeline, and there is no need for elevation difference, thus no pressure head lose is caused. Because of the special structure of the sample spoon and perpendicular sampling to the slurry flow, the sampling is kept accurate and respresentative. Sampling time is adjustable between 5 minuets to 50 minuets. Photoelectric technology is applied to the electrical part, and complete safety protection circuit is prepared. Its control is rather simple, action sensible and safety reliable.

该取样机顺管道安装、不需要任何高差，对矿浆无落差损失，取样勺结构独特，垂直矿浆流向取样，取样准确、代表性强；取样时间在5～50分钟区间内可随时任意设定和改变，电器部分采用了光电新技术，设有完善的保护电路，控制简单，动作灵敏，安全可靠。

The quantizing error, linear error and differential linear error of an A/D converter were deduced, after that the error model of synchronous sampling, asynchronous sampling and quasi-synchronous sampling algorithms used in power measurement wens build in condition that A/D was not perfect.

建立了该两种乘法器的物理模型，数学模型和误差仿真模型，全面地分析了各种参量对其交流功率测量的原理误差和仪器误差的影响，并给出了定量的结果。

The main sampling methods include contiguous grid quadrats sampling and random communities sampling.

常用的取样方法有梯度格局法和典型群落随机取样法，其中最小取样面积的确定尤为关键。

At first the current sampling values pass through virtual digital CVTs. And then the voltage and current sampling values are processed by a low pass filter. According to the instantaneous value of transmission line voltage, the current instantaneous values of shunt reactors and P equivalent circuit capacitance can be calculated. After removing these two kinds of current, sampling value differential protection based on all components and fault component can be applied.

由线路电压瞬时值分别实时计算出流入并联电抗器和流入线路Π型等值电路两侧电容的电流瞬时值，再从线路每侧电流除去这两部分电流，用得到的新电流瞬时值作常规采样值差动和故障分量采样值差动保护计算。

A mathematic model based on APQ was develop ed with a sampling rate and maximum false alarm rate as inputs to determine the optimum sampling size, sampling freq...

该方法包含了涉及控制图设计的所有关键元素，但是它比控制图的经济和半经济设计模型简单易用。

Abnormal distribution is not rare in practical measurement. Beta distribution contains not only central distribution but also non-central distribution. It is a good method to simplify the research of practical measurement distribution.

为了解决实际测量中的非正态分布的表示问题，本文采用含有两个参数的Beta分布来统示表示多种类型分布，并且解决了该分布的参数、特征值的计算。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。