查询词典 quasi-stationary

A fire\|new theory for periodic or quasi\|periodic signal sampling is proposed,w hich is especially for sampling high\|frequency wideband periodic or quasi\|peri odic signal by low sampling rate system.

涉及一种周期或准周期信号的采样技术，特别适用于低频采样系统采集高频宽带周期或准周期信号。

Second, in the forth part, the writer used relationshipin quasi--variat iona1 inequal ity, pseudo-variational inequality and monotone variational inequality and used the solution of monotone GVIP to solute quasi?variational inequality,pseudo?variational inequality. Also some important conclusion were given.

二。第四部分利用了拟变分不等式、伪变分不等式及强变分不等式之间的关系，利用已知的单调广义变分不等式的解的情况来研究拟变分不等式、伪变分不等式及强变分不等式的解的情况，并得出一些重要的理论。

On the basis, three equivalent statements are obtained. Let S be a semigroup with left central idempotents, then (1) S is a quasi-right semigroup;(2) S is a quasi-completely regular, and RegS is an ideal;(3) S is a nil-extension of strong semilattice of right semigroup.

在此基础上得到了3个等价命题：若S为具有左中心幂等元半群，则(1) S为拟右半群；(2) S为拟完全正则的，RegS为S的理想；(3) S为右群强半格的诣零理想扩张。

C. 2 for any regular point x of f, if ω is not quasi-attractive, then α is quasi-repellent.

C.2对f的任一常点x，如果w不是准吸引的，则α是准排斥的。

This method constructs a quasi-conformal transaction with the sech function. It improves the respective of SVM by modifying the polynomial kernel function. The text emphasizes on the parameter analysis of quasi-conformal transaction.

该方法用双曲正割函数构造拟共形变换函数，对多项式核函数进行修正来提高SVM的分辨率，并侧重于拟共形变换函数中的参数分析，确定了参数的取值方法，缩小了参数选取的范围。

Results obtained show that the range of quasi-solid is equivalent to the range of hot brittleness, and B, Ti as well as mischmetal all lower the quasi-solidus and enhance the strength around solidus and the increase rate of strength of the alloy.

研究结果表明，合金的准固态区即热脆性区，B，Ti和稀土都能降低合金准团相线温度，提高强度增长率和准固相线附近的强度，稀土的作用强于B和Ti。

The fourth chapter in this paper introduces the modeling ideas of stochasticvolatility into panel data model and puts forward panel data stochastic volatilitymodel. The Kalman Filtering can be employed to filter out the quasi-likelihoodfunction of the model and quasi-maximum likelihood estimation is used as achief means of estimating the parameter of the model.

第四章则将随机波动建模思想引入平行数据模型，提出平行数据随机波动模型，运用卡尔漫滤波方法得到模型的伪似然函数，进而采用极大似然估计方法求解模型参数。

The phase of ω0 frequency fluctuates tempestuously. The resonance peaks of flexural and torsional vibrations response are present at 2/3ω0 1/2ω0 1/3ω0 and 1/4ω0 with three kinds cracked rotor models. Near 1/2ω0 frequency, quasi-periodic and chaotic motions maybe appear. Periodic, quasi-periodic and chaotic motions show on alternately when the rotating speed is near to 2/3ω0.Combined step-by-step integral method with traditional transfer matrix method, an increment transfer matrix method is put forward.

研究结果表明：各种故障情况下，华北电力大学博士学位论文弯振和扭振之间都存在祸合关系，但弯扭祸合振动一般不会威胁机组安全运行：在叶片丢失或滑环飞脱故障时，将产生很大的弯振，同时各转子扭振也将被激发出来，它以工倍频和前三阶固有频率为主；在各种电气故障情况下，各转子都很快被激励出较大幅值的扭振来，相应各转子弯振也发生一定的变化，但它的变化明显滞后于扭振，扭振和扭矩主要以前三阶固有频率为主。

As a special example, we calculated global errors and reflective coefficient on the interface of quasi-PML in the Cassinian transformation cylindrical coordinates. Numerical results validated the effectiveness of absorbing in quasi-perfectly matched layers for the conformal mapping case.

本文还以Cassinian变换柱形坐标为例，计算了准PML的全局误差和准PML界面中点的反射系数，证实了保角变换柱形坐标系准PML的吸收作用。

Feb. 1988, quasi-biennial and quasi-3-to-4-year oscillation are invenstigated. It is found that the two oscillations are propagating from west to east at all levels, being out of paase for the tropics but in phase for the mid-latitudes; for the latter oscillations in West Pacific, it travels equatorially from both mid-latitudes at low-levels while from south to north through a well-defined channel at...

结果发现：纬向风准两年、准3─4年振荡在热带地区上、下层均一致自西向东传播，但位相相反；在中纬度地区，纬向风准两年、准3─4年振荡上、下层均盛行自西向东传播，且位相一致；西太平洋地区低层纬向风准3─4年振荡均为从南、北半球中纬度地区向赤道传播；高层纬向风准3─4年振荡在175─140°W附近存在一明显的通道，且为自南向北传播，而且在经向上呈1波特征。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。