周期

Secondly, the fractional order differentiation of rectangle signal, triangle signal and trapezia signal are carried out, meanwhile the analytical expressions of them are presented in this paper.

给出了一些常用周期信号分数阶微分的解析形式，同时也研究了周期序列的分数阶微分运算的数字实现。

Certain relevant concepts for Integal-Period Sampling , such as the orthogonality of the trigonometrical functions, Fourier coefficents, and aliasing effect etc. are extended to the case of NIPS.

进而将整周期谐波分析中的一系列概念，例如三角函数的正交性、Fourier系数，谐波分析中的关系，混迭等引伸到非整周期采样中来。

Computation results show that, for the uncracked pavements, low-temperature contracted cracking is not occurred generally, but the temperature-fatigue cracking is able to occur in pavement because of cyclical temperature varying.

在此基础上，对路面温度应力以24小时为周期的变化特征进行了系统的分析，发现了初始应力对周期性变化的路面温度应力场的影响，并提出了采用多周期迭代计算解决这一问题的有效途径。

The experiments separated into two parts. First of all, the unsheathing stage of Oncidium 'Gower Ramsey' plants were treated different light period until flower stalk branch emerge, then move to nature light environment. The other part experiment treated the initial unsheathing stage of Oncidium 'Gower Ramsey' plants under different light period until flower stalk length was 10~15 cm, then move to nature light.

本试验分为两部分，一部分选用Oncidium 'Gower Ramsey '完成出鞘期之植株进行不同电照周期处理，在花茎分叉刚长出时，移至自然日长光照下继续生长；另ㄧ部分则选用Oncidium 'Gower Ramsey '约在出鞘期之植株进行不同电照周期处理，在抽出花茎长约10~15公分时，移至自然日长光照下继续生长。

Only better regulation can untether economies from the fickle fortunes of finance – through resolution regimes to let big banks fail smoothly and stronger counter-cyclical capital rules to damp the cycle of credit bubbles.

只有更好的监管，才能把经济体从金融业变幻无常的命运中解脱出来——通过决议机制让大银行平稳倒闭，通过更强硬的反周期资本规定，来抑制信贷泡沫周期。

Only better regulation can untether economies from the fickle fortunes of finance ndash; through resolution regimes to let big banks fail smoothly and stronger counter-cyclical capital rules to damp the cycle of credit bubbles.

只有更好的监管，才能把经济体从金融业变幻无常的命运中解脱出来mdash；mdash；通过决议机制让大银行平稳倒闭，通过更强硬的反周期资本规定，来抑制信贷泡沫周期。

System modeling involves with both functional modeling and timing modeling, which relate with computation model (eg, Data-flow-oriented vs. Control-flow-oriented, Uni-processing vs. Multi-processing), time model (eg, Continuous vs. Discreet, Time vs. Untimed, Cycle-based vs. Non-cycle-based, State-based vs. Event-driven, Branching-time vs. Linear-time, Single-rate vs. Multi-rate) and communication model (eg Shared Variable vs. Messaging Passing).

涉及系统建模与功能建模和时间建模，涉及的计算模型（例如，数据流导向与控制流为导向，统一处理与多处理），时间模型（例如，连续主场迎战Discreet公司，时间与Untimed ，周期为基础的与非周期为基础，以国家为基础与事件驱动，分枝时间与线性时间，单率与多速率）和通信模型。

Meanwhile,aiming at the effect of design worktime on quality,GM model is applied in decision model of optimum design worktime.Both of models are fairly valuable in real estate project.

同时，针对设计周期这一单因素对设计质量的影响，运用灰色GM建模提出最优设计周期决策模型，对房地产开发商来说具有很好的实用价值。

Moreover, the stability and bifurcation of periodic motions are studied by means of computing the eigenvalues of its Jacobi matrix.

数值模拟表明了超谐周期运动的存在性判据的正确性，并通过计算Jacobi矩阵特征值可判断周期运动的稳定性及分岔。

In Chapter 6,the periodicity of continuous culture of microorganism in the turbidostat is discussed by investigating the existence of periodic solution of a kind of trubidostat model with impulsive state feedback control and Monod growth rate.

第6章研究了脉冲状态反馈控制对一类具有Monod增长率的恒浊器模型周期解存在性的影响，通过研究周期解的存在性来讨论微生物连续培养的周期性。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失