查询词典 descent method

Penalty function based method is a very effective method to estimate the number of sinusoid in presence of additive noise.

在加性噪声情形下，惩罚函数方法是一种简洁有效的谐波信号个数估计方法。

Death penalty is a kind of invasion that a kind of ancient penalty method, is also a kind of serverest penalty method, is to basic human rights.

中文摘要：死刑是一种古老的刑罚方法，也是一种最严厉的刑罚方法，是对基本人权的一种侵犯。

But nuclear technology method, because it has the radiation penetrability, may provide one new method to realize the cement at the right moment the analysis.

而核技术方法，由于它具有辐射穿透能力，可以提供一种新的方法来实现水泥的适时分析。

When using γ-ray penetrance method to measure soil water content in the big model test, several influencing factors on measurement accuracy of the γ-ray penetrance method are analyzed comprehensively.

在运用γ射线透射法测量大型滑坡模型土体含水量的过程中，为了提高试验的精度，综合分析了影响γ射线透射法测量精度的多种因素。

Comparisons between various lengths of penstock and different types of waterhammer using circuit equivalent method and characteristic method are presented by digital simulation.

最后对不同类型水击和不同长度的压力钢管进行仿真，并将电路等值方法和特征线方法比较。

Phenol method for methylation of sugar, pentose and polysaccharide determination method is simple and highly sensitive ...

下测定。苯酚法可用于甲基化的糖、戊糖和多聚糖的测定，方法简单，灵敏度高。。。。

The high density resistivity method is a effective perambulation method in the perambulation domain.

多年来工作成果表明：高密度电阻率法在工程勘查中具有仪器轻便、施工便捷、数据采集量大、地质信息丰富、成果可信等优势，是工程勘查领域一种可行有效的勘查方法。

Sodium periodate photometric method and flame atomic absorption spectrometric method.

锰含量的测定。高碘酸钠分光光度法和火焰原子吸收分光光度法

To obtain more detailed and accurate temperature distribution inside large size hydrostatic bearing, a simulation method was present, combined with a given example of prevalent applied large size hydrostatic bearing in heavy equipment. It consisted of three dimensional numerical model and boundary condition of hydrostatic sliding way and hydrostatic sliding way inside 3-D flow. The model equations were solved by the Finite Volume Method and by selecting segregated solver of FLUENT according to CFD principle. The more accurate results of temperature rise distribution on periodic surface are obtained. The effect of partial important parameters on temperature distribution was analyzed.

为了能够数值模拟出较详细和较准确的大尺寸静压轴承内部流体的温升分布，以重型装备中所广泛应用的大尺寸静压轴承为研究对象，建立了模拟静压轴承本体及轴承内部三维流动的数学模型及边界条件；利用计算流体动力学原理，采用有限体积法并选取FLUENT中的分离式求解器进行求解，得出了轴承周期端面较准确的不对称温度分布，并分析了部分重要参数对温度分布的影响。

Finite element method and periodic dynamic testing method are used to analyze the influencing factors for the damper, such as length, width, height of lead block and amplitude, frequency of load, etc.

采用有限元理论和周期性动力试验的方法，分析和研究了诸如铅块长宽高、荷载幅值、加载频率等对此阻尼器耗能性能的影响及其整体工作性能。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。