多周期的

At the same time, check sum is sent and communication protocol is established to keep error data out and multi-period measuring method is taken to improve measuring precision. Affective anti-jamming measures are given after all-sided analysis on potential interference.

在软件上，为提高系统的抗干扰性能，参数的检测采用了数字滤波算法；为防止通信中误码的产生，采用了发送校验和的方式，制定了与上位机的通信协议，同时为提高测量的精度，在测量时采用了多周期测量方法。

These algorithms have laid a foundation for setting up the basic data in MES. The five elements BOM definition used to describe product structure is given in order to reduce BOM quantity and realize BOM consistency effectively. In addition, the mapping algorithm is implemented by five elements BOM, which can make them link seamlessly to transforming from product structure model to procedure model with workflow. It provides a technical foundation to control and management in the product life cycle. And it also meet requirements which include the identicalness, integrality, integration of BOM data in the product life cycle.

介绍了BOM的基本概念，提出了EBOM／PPBOM向MBOM映射的算法和多BOM数据死锁的检验算法，为快速建立MES中的基础数据打下了基础；给出了五元组BOM对产品结构进行描述的柔性定义，可有效减少BOM数量和实现BOM的一致性；提出了基于五元组BOM的产品结构模型向Petri网过程模型的映射算法，从面向产品结构的建模转化为面向过程的Petri网建模，从而为产品的全生命周期的控制与管理提供了技术基础，满足产品生命周期中的BOM的一致性、完整性和数据集成性的需求。

Secondly, the paper is expanded from follow three aspects: the virtual design, the virtual process and the product data managementduring the developing the torque converter. Applying the key technique of concurrent engineering---design for function, design for assemblyand design for manufactureof the method of design for "X", the virtual design of the torque converter is accomplished in CATIA V5. Then the model constitution and the simulation of virtual process of the torque converter is done in CATIA V5, including the model constitution and the simulation of 5-aixe NC virtual process of the vane, the model constitution（material:PVC） of the idler pulley rapid prototypingand the virtual assembly and the motion simulation of the torque converter, etc. 3-D data exchange between various CAD systems is realized by using STEP standard. The lever of classing the character model of the torque converter is given. And the access authorization is set up and given to manage the partners' reading/writing the product data.

应用并行工程的关键技术之一——面向产品全生命周期的设计DFX中面向功能的设计DFF、面向装配的设计DFA和面向制造的设计DFM的方法，在CATIA V5中完成液力变矩器虚拟设计；在CATIA V5中对液力变矩器进行虚拟加工建模和仿真，包括液力变矩器导轮叶片五轴数控加工刀轨建模与仿真、导轮快速成型RP建模、液力变矩器虚拟装配和运动仿真等；采用STEP标准实现多CAD系统之间三维数据交换，提出液力变矩器特征模型的分级标准并对三维模型数据进行分级管理，制定相应的权限等级以规范合作厂家的产品数据管理层次。

In this paper we introduce a schema for embedded soft PLC system.Firstly We discuss development,characteristics,concept and key technology of soft PLC.Secondly we particularize this schema from hardware and software platform.

软PLC综合了计算机和PLC的开关控制、模拟量控制、数学运算、数值处理、通信网络等功能，通过一个多任务的内核，提供了强大的指令集、快速而准确的扫描周期、可靠的操作和可连接的各种I/O系统及网络的开发结构。

Our results improve the former results. For periodic Jacobi matrix, some new spectral properties of periodic Jacobi matrix are given by studying the relationship of the eigenvalues of periodic Jacobi matrix and its n—1 principal submatrix. Applying these spectral properties, we present a necessary and sufficient condition for the solvability of an inverse problem of periodic Jacobi matrices and discuss the number and the relationship of its solutions. Furthermore, we propose a new algorithm to construct its solution and compare it with the former algorithms. As this inverse problem of periodic Jacobi matrix usually has multiple solutions as many other eigenvalue inverse problems, we study the uniqueness of this problem. And a necessary and sufficient condition is given to ensure its uniqueness, under which an algorithm is presented and the stability analysis is also given. Finally, we put forward a new inverse problem for periodic Jacobi matrix which has not been solved.

对周期Jacobi矩阵特征值反问题，通过研究周期Jacobi矩阵与其n-1阶主子阵特征值的关系，给出了周期Jacobi矩阵的一些新的谱性质；利用这些谱性质，研究了一类周期Jacobi矩阵特征值反问题，用新的方法推导出了该类特征值反问题有解的充分必要条件，并讨论了解的个数以及解与解之间的关系；此外，提出了一种新的构造周期Jacobi矩阵反问题解的数值算法，并与前人的算法做了一定比较；由于周期Jacobi矩阵特征值反问题和其他很多特征值反问题一样往往存在多个解，本论文给出了周期Jacobi矩阵反问题解唯一的充要条件，并发现周期Jacobi矩阵特征值反问题的解唯一当且仅当构造的矩阵满足一定的条件；在解唯一的情况下，给出了构造唯一解的数值算法，并做了相应的稳定性分析；最后，提出了一类新的有待于解决的周期Jacobi矩阵特征值反问题。

The results showed:(1) The histological changes of KC were in fact a wound-repair process;(2) The increased melanin in KC coordinated with "multi-overlapping screen" effect, a result of multiple layers of "supranuclear cap", was the direct cause of hyperpigmentation of the graft and (3) The hydrolytic disturbance of melanin in KC and the longer life span of the KC were probably the important reasons for the increase of melanin in the epidermis.

结果表明，角朊细胞的组织学改变实际上是一个损伤后修复的过程；角朊细胞内黑色素含量增加及出现的多层次的&核上帽&状分布而形成的&多重帘幕&效应，是皮片过度色素化的直接原因；黑色素在角朊细胞内的降解障碍及角朊细胞更新周期延长可能是表皮内黑色素含量增多的重要原因。

Very familiar Deng Min, vice president of development and application of self-production of PVC bulk of new technologies, about 4 cubic meters per ton of water, production capacity from the original annual output of 2 million tons to the present size of 200,000 tons, the cumulative added value of nearly 6 million; the use of large-scale carbide original patented technology and self-design is completed large-scale localization of ion-exchange membrane caustic soda plant, built non-smokestack emissions dust recovered clean production of calcium carbide base, power consumption of about 200 kwh per ton of reduction; first successfully developed and built the nation's largest full-slag cement, environmental protection projects, not only the first in the industry to solve environmental problems of carbide slag, the output of every year million yuan in building materials …… This has been a loss of more than 5,000 million years running large enterprises, last year's sales revenue is over 4 billion yuan mark, the profit 3 7 Yi Yuan.

对经济周期的收获时，宜宾天原有限公司—-很熟悉邓敏，副自我发展和应用总统大部分聚氯乙烯新技术，每吨约4立方米生产水，生产能力从原来的200万吨的年产20万吨，累计近600万增加值目前的规模，大型硬质合金原专利技术和自我大规模使用，设计完成的大型定位离子膜烧碱装置，建成无烟囱排放的粉尘回收的电石基地，电力约200吨，每千瓦时降低消耗；首先研制成功并建成国内最大的全面矿渣水泥，环保清洁生产不仅是第一个在工业项目，解决电石渣的环境问题，在每年产值亿元人民币建筑材料……这是一个5000多万年的大型企业亏损，去年的销售收入超过4亿元大关，利润37易吁鹌。

Therefore, the choice of single mode in the examination and the frequency-thick band of mode has been given a particular illumination separately in the paper, following a relative numerical simulation. And a multi-cyclical sine signal modulated by Hanning window is used to simulate the excitation wave, and then an inspected ring of nodes is established to receive the echo, finally how the length of the circumferential cracks, the width of the axial cracks and the degree of the thickness-reduce effect the result is explained through the analysis of the result, further more, the reflection factor in the defect has been calculated.

因此，本文也就单一检测模态的选择以及模态频厚积段的选择分别予以了阐述，并有针对性的进行了数值计算：应用Hanning窗调制的多周期正弦波模拟单音频激励信号，并设置监测质点环接收回波，通过分析说明了管道的周向裂纹、轴向裂纹以及点蚀缺陷对缺陷回波所产生的影响，并进一步计算了缺陷处的反射系数。

At the same time, there was a growing "demand" from company managers eager to work outside the quarterly results cycle of the public markets and what they saw as regulatory straitjackets such as the Sarbanes-Oxley Act.

与此同时，越来越多的有&需求&的公司经理急于外出工作季度业绩周期的公共市场和他们眼中的监管 straitjackets 如 Sarbanes - Oxley 法案。

The snails used for this study, measuring within the range of 7.1 to 3.0mm., were collected from the banks of Ching-San River, Chungking, Kiangsu.

从11月到第二年5月，卵巢呈丰满而多卵的状态；6月卵巢趋向萎缩；7、8月卵巢萎缩，内仅含有少量的幼稚卵细胞；9月卵巢开始趋向丰满；10月卵巢逐渐恢复丰满的状态。卵巢全年周期变化的过程与镇江地区钉螺的产卵情况基本上相符合。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了