查询词典 calculation error

Shim current calculationWhen shim coils are excited by appropriate current, they can generate correcting magnetic field to compensate the imaging magnetic field unhomogeneity. Based on the indirect calculation method, we proposed a novel iterative optimization algorithm to calculate shim current. Because there is a direct proportion relationship between FID signal and magnetic field homogeneity, we use the intensity of FID signal as feedback information to the calculation. Shim current can be worked out in less than 3 minutes. This satisfied the requirement that active shimming should be performed in real time.

5匀场电流计算对匀场线圈施加适当的电流后才能产生校正磁场消除成像磁场的非均匀分量，本文在匀场电流间接计算方法的基础上，利用磁共振成像原理中磁场均匀性与系统FID信号强度成正比的关系提出了一种电流迭代优化算法，将系统FID信号强度的变化作为反馈信息，能够快速计算出匀场电流对成像磁场进行补偿校正，平均耗时不到三分钟，满足磁共振成像系统对有源匀场的实时性要求。

The grid is generated by Delauney method- A nodal finite volume method is used in the now calculation. The scheme for the nux calculation is vare Leer. The adaptation for the flow computations is mesh enrichment and coarsening.

网格的生成采用Delauney方法，流场的算法为节点型有限体积法，通量的计算采用Vanleer格式，自适应采用网格的增加和删减。

Design of drainage system discharges the way of draining water and the sureness of the system to include; calculation of the water force of the pipeline, mainly includes the design of the crosswise pipe slop and pipe diameter and the design of the vertical pipe diameter; the design of the way of ventilation and the calculation of the ventilative pipe; the design of the inspection shaft to choose the sewage waste water pump.

本建筑为河南省某管理局综合办公楼，对给水排水系统的要求较高。主要设计包括：给水方式的确定，竖向分区的合理划定，管材的确定，管道的水力计算，加压设备和贮水设备的选择计算。排水系统的设计主要包括：排水体制及其排水方式的确定；管道的水力计算（主要包括排水横管的坡度管径的确定，竖管管径的确定）；通气方式的确定以及通气管道的设计计算；集水坑的选择计算并由此选择潜污泵。

In this paper, mechanical analysis of over lap section of yieldable steel ribs is made. It describes how to deal with the overlap sections in calculation of internal forces in the support.It analyzes variation of shape of steel ribs and calculation of internal residual forces resulted from yielding of steel ribs. The theory for ca...

本文根据地下结构的特点，着重对可缩性金属支架的搭接段进行力学分析，并提出了在支架内力计算中搭接段的处理方法；分析了支架缩动引起的形状变化及支架由于缩动而产生的残余内力的计算，从而建立了可缩性金属支架的计算理论。

It is very important to carry out critical experiment on spent fuel for selecting calculation code packages and validating calculation methods using burnup credit technology.

开展乏燃料的临界实验非常重要，在建造乏燃料临界实验装置之前需要对其进行大量的详细的临界计算。

For a reference GFR core design, the criticality and burnup characteristics for the single assembly model and full core model were calculated through the coupling of MCNP and ORIGEN, and the differences in the calculation precision and calculation time were compared between the fine structure model and homogenized assembly model, respectively.

本工作以一气冷快堆的设计方案为研究对象，针对单组件模型和全堆芯模型，采用MCNP耦合ORIGEN的方法，计算了有关临界、燃耗过程的几个重要物理特性，比较了采用精细化结构和组件均匀化方法在计算精度、计算时间等的差别，说明了采用组件均匀化方法进行气冷快堆全堆燃耗计算的必要性和可行性。

For a reference GFR core design,the criticality and burnup characteristics for the single assembly model and full core model were calculated through the coupling of MCNP and ORIGEN,and the differences in the calculation precision and calculation time were compared between the fine structure model and homogenized assembly model,respective...

本工作以一气冷快堆的设计方案为研究对象，针对单组件模型和全堆芯模型，采用MCNP耦合ORIGEN的方法，计算了有关临界、燃耗过程的几个重要物理特性，比较了采用精细化结构和组件均匀化方法在计算精度、计算时间等的差别，说明了采用组件均匀化方法进行气冷快堆全堆燃耗计算的必要性和可行性。

The calculation method can be also used in dynamic calculation of other ship-borne weapons under the condition of the warship sway.

该方法同样适用于其他舰载武器在舰船摇摆情况下的受力分析。

The principle of system is introduced, through the theoretical calculation of atomized refrigerating capacity in spray heat exchange system, offer foundation of calculation for rationally design system.

本文介绍了系统的组成原理，并通过喷雾换热系统的雾化冷却能力的理论计算，为系统的合理设计提供了计算依据。

This article has selected three methods of weight calculation: single item index method of weight; synthesis index method of weight; entropy method of weight After the expatiation of theories and means, we analyzed example by using the fuzzy comprehensive evaluation method baaed on these three kinds of methods of weight calculation, and then came to the conclusion through contrast: the first method is very sensitive to superscale; the other two methods, which consider more factors' influence, can generally reflect the real status of water quality, and the results are consistent and relatively better.

现选取了单项评价指标权重法、综合权重法以及熵权法三种不同的权重计算法，分别详述了其计算原理和方法，并在基于这三种权重计算法的基础上采用模糊综合评判法对实例进行分析，最终通过对比得出结论：基于单项评价指标权重法的模糊综合评判法对单个超标因子比较敏感；基于综合权重法和熵权法的模糊综合评判法则综合考虑了各个指标因子对评价结果的影响，能够较全面的反映水质的实际情况，评价结果几乎一致，且相对较好。

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。