查询词典 sampling fraction

The spread paths of common mode and differential mode noises in an SMPS under electrical fast transient/burst are studied and discussed. Hereby for single transient pulse, the vector fitting method is adopted combining rational function approximation according to the tested waveform to construct the a mathematical modeling of frequency, then a pole-residue representation is obtained by partial fraction expansion, and the last step are to draw a state space description and equivalent circuit.

在分析开关电源进行电快速瞬变脉冲群骚扰试验时共模和差模噪声的传播途径的基础上，对于单个脉冲，根据试验数据采用矢量匹配法结合有理函数逼近构造得到频域下的数学模型，通过部分分式展开得到零极点表达式，并最终得到相应的状态空间方程以及等效电路。

A.什么叫partial fraction expansion, numerater, denominator

必然要先把它化成部分分式再积的。

This article gives that several commonly rational functions are divided into the decompose summation of the partial fraction formulas and their proof.

摘要给出了几个常用有理分式分解成部分分式之和的分解公式和证明。

However, partial red clay has swell-shrink characteristics that do harm to engineering, some partial has soft characteristic as low strength, high compressibility, and some partial has size fraction like mixed soil.

但是，红粘土的工程性质及其指标变化范围很大，还有一部分红粘土具有对工程产生危害的胀缩性，部分红粘土具有低强度，高压缩性的软弱特性，还有一部分具有混合土的特点。

In nine recruiters, the higher end-expiratory pressure strategy resulted in significant alveolar recruitment (587 ± 158 ml), improvement in arterial oxygen partial pressure/inspired oxygen fraction ratio (from 150 ± 36 to 396 ± 138), and reduction in static lung elastance (from 23 ± 3 to 20 ± 2 cm H2O/L).

结果显示，两组患者的临床转归相似。19例患者均使用了低PEEP (9 ± 2 cm H2O)和高PEEP(16 ± 1 cm H2O)通气。9例使用了高PEEP受试者肺泡复张显著(587 ± 158 ml)，动脉血氧分压/氧合指数改善(from 150 ± 36 to 396 ± 138)，静息肺弹性下降(from 23 ± 3 to 20 ± 2 cm H2O/L)。

Then, base on the equivalent circuit model for cascaded coupled resonator filter, the method for measuring or computing the phase of the reflection coefficient of short-circuit terminated networks and synthesizeing all the inter-resonator couplings and resonant frequencies of the filters to be tuned is studied intensively. The phase loading effect is removed and the tuning steps are analyzed. The method based on the partial fraction expansions of admittance matrix is used to synthesize coupling matrix of the filters under tuning.

然后，通过分析级联耦合滤波器的等效电路模型，着重研究了利用测量或计算终端短路网络的反射参数的相位来综合出待调级联耦合滤波器各个腔体的谐振频率和腔体间的耦合系数的方法，并且消除了端口相位加载的影响，给出了具体的调试步骤；接着利用导纳矩阵部分分式的展开来求得待调滤波器耦合矩阵，着重研究了消除端口相位加载的方法。

Iterative algorithm; real orthogonal polynomial; parameter identification; partial fraction; experimental modal analysis

应用部分分式实正交多项式构建频响函数幅值平方的分析模型，规避了原有复正交多项式的复杂计算。

A tone produced on a stringed instrument by lightly touching an open or stopped vibrating string at a given fraction of its length so that both segments vibrate.Also called overtone , partial , partial tone

和音：指通过轻触展开的或停止颤动的弦乐器琴弦上的特定位置，从而使两部分弦同时颤动而发出的声音也作 overtone ， partial ， partial tone

The excess fraction is crucial in effecting sufficient CMC adsorption during the mixing process of yoghurt and CMC solution. Pasteurism had no influence on the CMC adsorbed amount in direct acidified milk drinks; however, it led to the decrease of CMC adsorbed amount in yoghurt drinks.

生产酸性乳饮料的巴氏杀菌过程，对调酸型乳饮料中CMC在酪蛋白上的吸附量没有显著影响，但是这一加热杀菌过程可以降低CMC在发酵型乳饮料中蛋白颗粒的吸附百分比及吸附量。

PDR is a fraction of the cost (typically one-third) of a traditional auto body repair or replacement.

民主共和国是一小部分费用传统汽车车身修理或更换。

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。