包络线

随着水泥及EPS颗粒添加量的不同，它的莫尔破坏包络线有折线型和直线型2种表现形式。

With the additive amounts of cement and beads of EPS , the Mohr-coulomb envelope curve of the lightweight bead-treated specimen has two types : folding line and straight line .

文章还得出了目的层煤岩Mohr断裂准则二次抛物线型包络线，煤层水压致裂裂缝形式判断，裂缝开裂角方位的计算公式以及有关结论。

The paper al-so obtains the formulas to draw the second power parabolic Mohr envelope , to decide the crack form of the coalbed from hydraulic fracture , to calculate the incipient crack angle and some related conclusions .

GIS中平面一般曲线误差模型包络线

Envelop of Error Model of 2 D Spatial Curve in GIS

泵CAT出厂试验中椭圆包络线的确定方法

Determination of ellipse envelopes in ex factory test of pump CAT

用电脑软件MATLAB编程绘出求得包络线方程的曲线，从理论上证明本文所推导方程的可靠性；

Through draw the curve of wrap-up line equation with MATLAB program of computer software . I prove the dependability of the equation in theory ;

文中提出以线列阵CCD输出脉冲的包络线信号作为摄取目标的特征。

It is proposed that envelope signals formed by the CCD output pulse series wave serve as the feature of the photogrammetry target .

本文介绍在完成国家八五科技攻关项目中，突破常规调查方法，采用遥感与GIS技术，在室内针对震害遥感影像完成震害分类分级，进而通过人机对话完成地震烈度包络线的快速生成的方法和技术。

This paper presents a new method using remote sensing and GIS techniques . The seismic hazards were classified by aerial images and then isoseisms were produced in GIS database .

运用Matlab对所采集的电动机功率监测信号进行希尔伯特变换，得到了所采集电机功率信号的包络线（调制信号）。

The monitoring signal of the motor power collected with MATLAB was processed through Hilbert transformation , so that an enveloping curve motor power signal ( modulated signal ) was obtained .

线状实体误差模型包络线既是GIS位置不确定性研究的重要内容，又是GIS可视化研究的关键指标。

Boundary envelop of error model to linear entity is not only of the importance for GIS positional uncertainty theory research , but also the critical indicator for GIS positional uncertainty visualization research .

PN断面东海黑潮的地转经验模态分析经验模态分解中的包络线拟合算法仿真分析

Diagnosis of the Kuroshio in the East China Sea along the PN-line with Geostrophic Empirical Mode Method ; Simulation Analysis of Envelopes Fitting Algorithms in EMD

我们应用Fourier分析的方法，对20例正常人和29例患者的TCD血流速度包络线进行了分析。

We performed Fourier analysis of cerebral blood flow velocity waveform envelop in 20 normal subjects and 29 patients , consisting 22 hypertension cerebral arteriosclerosis and 7 migraine .

同时以LSSVM回归方式形成包络线，以取代传统EMD中的三次样条插值；

The upper and lower envelopes are constructed by using LSSVM regression instead of spline interpolation in EMD .

对Lyapunov直接法在估算系统动态性能方面的应用进行了理论分析，运用Rayleigh商推导出系统状态收敛轨线的包络线，最后给出了运用导出结论对控制系统综合的实例。

Application of Lyapunov direct method in dynamic performance estimation of automatic control system is investigated , and the boundary of state convergent trajectory is derived by applying Rayleigh quotient .

提出了一种新的电流型CPT系统电路拓扑，以实现输入电压及系统耦合参数不变时包络线的宽范围调幅。

A novel circuit topology for current-fed CPT system is proposed to realize wide magnitude envelope modulating on the condition that input voltage and couple parameters are constant .

有多种通道，我最喜欢的是直接包络线&两条线分别在EMA上下，都和EMA平行。

There are several types of channels , and my favorite is a straight envelope-the lines above and below the EMA , both parallel to it .

结论在应用肺动脉血流速度频谱外包络线估测Qp时，应正确选取SV的位置和大小，以减少测量误差。

Conclusion As quantitative pulmonary flow measurement was performed by Out profile of Doppler flow spectrum , SV position and lenght were selected correctly for decreasing measurement error .

分析了采用传统传输模式的AC-AC型非接触电能传输系统存在的缺点，研究了包络线调制传输模式下的系统结构。

The drawbacks of AC-AC type CPT system with traditional power transfer mode are analyzed . The system structure under envelope modulation transfer mode is studied .

HHT刚提出不久，其理论本身还存在不少问题，如包络线和均值曲线的拟合、边界效应和模态混叠等问题。

HHT has not been put forward for long time , so it contains some theoretical problems , such as envelop and mean curve fit , boundary effect , modes mix and so on .

应用这种方法处理B2O3中B的K0X射线谱，从包络线中区分出波长67.657和67.536A的两条谱线，获得该谱线具有精细结构的证据，验证了关于B的sp~2轨道杂化理论。

The results show the evidence of boron 's ( in B2O3 ) K_a X-ray spectrum fine structure with two peaks , at wavelength 67.657 A and 67.536A respectively , which verify the theory of sp ~ 2 hybrid orbit of boron .

提出了基于包络线调制传输模式的AC-DC型非接触电能传输系统结构，给出了一种适用于该结构的能量注入式AC-AC变换拓扑，分析了该拓扑的系统特性。

An AC-DC type CPT system structure based on envelope modulation mode is presented . An energy injection AC-AC type topology is proposed for the structure . Its system characteristics are analyzed .

提出了一种谐振能量控制策略，通过实时调节谐振回路能量注入模式，实现AC-AC高频变换拓扑的恒幅包络线调制。

A novel control strategy of the resonant power is proposed which realizes constant magnitude envelope modulation in an AC-AC high frequency conversion topology by adjusting the injected power of the resonant tank dynamically .

脉冲多谱勒（PW）频谱特征呈单相或双相、包络线不清晰、频谱增宽的高速低阻力的血流频谱，测量收缩期峰值流速为15～39cm/s，平均流速（3.9±0.16）cm/s；

The direct manifestation of Doppler spectrum was high velocity flow with low resistance . Peak velocity of systolic flow was 15 ~ 39 cm / s and mean velocity ( 3.9 ± 0.16 ) cm / s.

结合包络线方程，推导对角元素Gershgorin带与实轴交点的数学解析式。

Analytic expressions of intersections of real axis and Gershgorin Band of diagonal element can be obtained by means of equations of envelope .

以不对称DC-AC拓扑为例，研究了该结构实现包络线调制的方式，并利用状态空间法建立了系统的稳态模型，进行了仿真分析和实验验证。

An asymmetric DC-AC topology is taken for consideration to study the envelope modulation mechanism . The system steady-state model is built up with state space method and verified by both simulation and experiment results . 5 .

西浅东深的林县西断裂沿震源深度包络线向深部延伸与震区下方的近垂直的地壳断裂在15km深处交汇。

It is gathered at the depth of 15km that the shallow west and the deep east in Linxian extends to depth along the envelope curve and nearly vertical crustal fault beneath the seismic area .

在对试验结果进行分析的基础上，综合单轴拉-压疲劳的结论给出了该种疲劳状态下混凝土的S-N关系和双轴疲劳强度包络线。

Then , the relationship of S-N and the fatigue strength envelopes of concrete under tension-compression loads with constant confinement are presented based on the analysis of the results of present experiments and fatigue tests under uniaxial tension-compression cyclic loading reported in the available literature .

根据多孔阳极氧化铝（AAO）薄膜的实验透射谱（200&2500nm），采用极值包络线算法确定其光学常数，并由此较精确地计算出AAO薄膜样品在该波段的光学常数。

A simple method was established based on the envelope curves of the optical transmission spectrum over the wavelength range of 200 to 2500 nm at normal incidence , which was used for the accurate determination of the optical constants of the anodic aluminum oxide ( AAO ) films .

针对TATSUNO双圆弧组合泵存在的不足，提出了该泵中的一对齿轮副采用定传动比的圆弧及其包络线齿轮副的方案，以改善泵的性能。

To overcome the disadvantage of TATSUNO combined pumps and to improve the characteristics of the pumps , a new kind of pump with the fixed transmission ratio is proposed , the teeth of which are circle-arc and its envelope .

电子直线加速器中计入纵向与横向耦合效应的束流包络线方程组

Beam envelope equations coupling the longitudinal and transverse motion in linac

评估混凝土缺陷区包络线的实用方法

A practical method for appraising envelopes of defect areas in concrete