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The controller makes the closed-loop systems internally stable and minimizes the H2 norm of the transfer matrix Tzw from w to z. Two Riccati formulae based on 8 operator is deduced. The H2 problems for continuous time systems, Z operator models and 8 operator models are investigated respectively.The guaranteed cost control problem of robust stabilization and robust performance for uncertain systems which is described by 8 operator is discussed in this paper.

采用Riccati方程处理方法讨论了基于Delta算子描述下的离散系统存在输出反馈控制器的问题，得到了两个基于Delta算子的Riccati方程，设计了Delta域的输出反馈控制器，使得闭环系统内稳定，且满足从w到z的传递矩阵T_的H_2范数最小，设计了基于Delta算子描述下的离散系统的最优控制器，并与S域和Z域的H_2控制器进行了比较。

The formulae were derived to calculate the spherical coordinates of any vector after the specimen was rotated any angles around any axis based on the homogenous coordinate theory.

摘 要：在利用同步辐射进行晶体缺陷的形貌研究时，为了获得晶体缺陷的三维分布信息，在实验中样品要在样品台上沿不同方向旋转轴进行多次旋转，因而需要计算样品经过多次旋转后任意矢量的空间坐标以及缺陷的取向坐标。

Animal model of Kunming mouse infected by Listeria monocytogenes was successfully constructed, and the effective Chinese medicinal formulae including Cornu Bubali,Radix Rehmanniae et al. five herbs was screened.The cure rate was 75% and the effective rate was 90%.

成功建立了昆明小鼠单核增生李氏杆菌病的动物模型，筛选的水牛角Cornu Bubali、生地黄Radix Rehmanniae等五味中药配伍的有效中药方剂，治疗有效率达90%，治愈率达75%。

The main purpose is to construct cubature formulae on an arbitrary spherical triangle. Firstly a method for accurately computing the definite integral of spherical polynomial functions on a spherical triangle is proposed.

本文主要研究定义在球面三角形上函数的数值积分，通过积分的插值多项式函数构造具有多项式精度的插值型求积公式，以及给出精确计算球面三角形上多项式函数方法。

Some uniform formulae are established, which link the Laplacian of the position vector function to the mean curvature vector field on any submanifold in the space forms.

讨论空间型中的位置向量场，建立一组统一的公式，将子流形的平均曲率向量场与位置向量及其衍生函数的Laplacian联系在一起。

On the basis of the thermal balance equation,specific inner work equation,cyclic heat absorption equation of a thermal system and the standard coal-consumption calculation formulae of power generation,derived was a general calculation model featuring the influence of lower terminal temperature difference of a heater on the coal consumption of a power plant.

根据热力系统热平衡方程、比内功方程、循环吸热量方程及发电标准煤耗率计算公式，导出了加热器下端差对机组煤耗影响的通用计算模型；并且在考虑到加热器下端差的影响的基础上，改进了以往的建模方法，得到了更为完善的加热器上端差对机组煤耗影响的通用计算模型。

According to the composition of elements of fuel,thermochemical forms,combustion heat,and time-dependent relations of oxygen concentration acquired during fullscale tunnel fire experiment,the formulae are given for calculating di- mensionless burning rate, released heat rate ,and ratio of medium decalescence.

根据燃料的元素构成、热化学反应式、反应物和生成物的焓变以及燃烧过程中监测到的烟气中氧气浓度随时间变化规律，提出了计算某一时刻燃料燃烧速率、释热速率和介质吸热率的关系式；通过实际规模的火灾试验，对其数据的计算表明，对木质类巷道火灾，最大比燃烧速率为0.193，最大释热速率约为1～3.5 MW，介质的吸热率为22

This text passes correctly elm two of Daqing oil field is united --One Song unite person who bury oil pipeline scene to live in environment survey and study, is it take a sample test , environmental corrosivity survey , corrosivity measuring of pipeline and assess of soil to excavate, is it cause person who bury pipeline antiseptic layers of invalid main factor to find out , confirm the environmental grade of corrosion of soil according to environmental comprehensive physics and chemistry index of soil, grasp pipeline antiseptic invalid law of layer , study antiseptic layers of resistivity decay law and to influence that negative pole protect, is it suitable for person who bury antiseptic layer of life-span of the pipeline calculate formulae and actual effect criterion model to propose on the basis of this text, illustrate and simply analyse oil field long to fail person who bury antiseptic layer of surplus ability to work of the pipeline, unite for elm two --One Song unite pipeline antiseptic maintenance of layer , is it put forward science rational suggestion to change.

本文通过对大庆油田榆二联——宋一联埋地输油管道所处环境的现场调研、开挖取样化验、环境土壤的腐蚀性勘测、管线的腐蚀性检测和评估，找出引起埋地管道防腐层失效的主要因素，并根据环境土壤的综合理化指标确定该段环境土壤的腐蚀等级，掌握管道防腐层的失效规律，研究防腐层电阻率衰减规律及其对阴极保护的影响，在本文的基础上提出适用于埋地管道防腐层寿命计算公式和失效判据模型，例证和浅析油田长输埋地管道防腐层剩余工作能力，为榆二联——宋一联管道防腐层的维修、更换提出科学合理的建议。

The title to, ownership of and copyright in any document or other material containing Confidential Information obtained by the Declarant from ABC in connection with the services referred to above shall remain vested in ABC and the Declarant undertakes not to, except in so far as may be necessary for the purposes of performance of his/her services to ABC as ABC's employee, retain or make originals or copies of memoranda, messages, telexes, letters, maps, reports, drawings, calculations, specifications, formulae, forms, licenses, agreements or other documents of whatever nature belonging to ABC, its Affiliate or its Business Associate may be or may have been interested and which have come into his/her possession by reason of the Declarant's employment and to forthwith return all such documents and other materials to ABC upon completion of said services and/or his/her employment without retaining any copies thereof.

若有任何文件或资料含有声明者从ABC获取的有关上述服务项目的机密情报，该文件或资料的所有权和版权应属于ABC；声明者承诺：若声明者由于自己工作关系而占有了属于ABC，ABC的分支机构或与ABC可能有或已经有利益关系的业务伙伴的书面记录便笺，情报，电报，信件，图表，报告，制图，计划书，说明书，配方，表格，许可证，协议以及其他任何性质的文件，除非作为ABC的员工向ABC履行自己的任务需要的情况下，声明者决不保留或复制上述文件的正本或副本；并且在完成工作任务后或聘用期结束后立即将上述文件资料全部上交给ABC，决不保留任何复印件或复制品。

Applying energy variation principle, we give equation s defining parameters in flexural function, stability equation , frequency equation , and general formulae of minimum critical force and minimum eigenfrequency as well.

应用能量变分原理，给出了确定挠曲函数中待定参数的方程，以及稳定性方程和频率方程，给出了求最小临界力和最小固有频率的一般公式。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。