系统的

The relationship between the tracking error and those auxiliary errors is clearly established when plant relative degree is greater than one and therefore, it can be proved that the influence of averaging filters on a VS-MRAC system can be considered as, in a sense, an unmodelled dynamics. As a result of this, it is shown that the stability analysis of a signal synthesis based VS-MRAC system must be modified to include the 'unmodelled dynamics'.

当对象建模部分相对阶大于1时，得到了系统跟踪误差和辅助误差间明确的关系表达式，进而证明平均值滤波器对系统的影响相当于未建模动态对系统的影响，这表明以往相关文献关于系统稳定性的分析是有缺陷的，没有将平均值滤波器对系统稳定性的影响完全考虑在内； 3。

The result showed that:(1) the unrenewable industrial assistance emergy were mainly in the region of farming eco-economic system, and the chemical fertilizers greater impacted on agriculture output;(2) the intensity of emergy use was higher than the national average on agriculture, which indicated that there were a higher levels of investment in science and technology in the region;(3) the net output rate of emergy in the planting economic ecosystem was higher than the level of the national average and developed regions of guangdong province, which showed that the system had higher economic vitality, and the better function of agricultural system, more efficient operation, higher returns of emergy;(4) the rate of environmental loading was a lower level, which indicated that agricultural production had less pressure on the entire regional ecosystems, and caused less damage to the ecological environment, and agriculture, environmental resources for further development and utilization;(5) the sustainable development index in yanqi basin indicated that farming systems in the region belonged to sustainable development areas.

结果表明：(1)焉耆盆地绿洲2006种植业生态经济系统的能值投入以不可更新的工业辅助能为主。在不可更新工业辅助能中，化肥对农业的产出影响较大；(2)该区域的能值利用强度高于全国平均水平，说明农业的科技投入水平较高；(3)系统的净能值产出率高于全国平均水平和发达地区水平，表明系统具有较高的经济活力，农业系统整体功能较好，运转效率较高，能值回报率较高；(4)农业生产对整个区域生态系统的压力较轻，引起的生态环境破坏较小，农业环境资源还有进一步开发利用的潜力；(5)焉耆盆地种植业系统具有可持续发展的潜力。

Additionally, we found that the throughput of slotted FH—CDMA system is near that of unslotted system, althrough the number of frequency bins is not very large e.

通过比较，更正了人们长期以来认为时槽系统的性能优于非时槽系统的错误观点，指出在FH—CDMA系统中信道时间分槽并不能增加系统的吞吐量。

And finally, aiming at characteristics of the enterprise equipment management and the requirements of project management system of BALING Petroleum and Chemical Co., this article presents modes of this system development and application. Project management system is integrated with equipment integrated management system.

最后针对巴陵公司设备管理的特点和设备维修工程项目管理系统的需求，给出了系统开发方法和实际应用方式，实现了维修工程项目管理系统与企业设备综合管理系统有机的集成。

The used behaviors /PATTERNING as a design strategy:By translating or imitating the accreting appearance of the nature,this project's main idea is to represent and struct a system of the biotope.On the first site, I use the strategy to observe the using behavior and walking routes in the environment,then the working system is bring naturally.The second site,I exploit all relations between water system and activities of daily livings to construct the scales of systemic types and new-used behaviors.It is an open system for a particular area.

惯性行为 PATTERNING as a design strategy：旨在藉由转译或模仿自然生成物的生成现象，再现且建构其在群构系统模式，在第一个基地所采取的策略是观察周边环境之使用行为及动线生成，衍生的系统顺应而生，第二个基地则是利用水系统与人们生活的各种关系，去建构系统的型态比例关系及新使用行为，是一种区域性的开放系统。

The distributed management information system are charactered for crossing organizations,platforms and districts,and it's running environment owns variety and complexity,which add to the difficulties to guarantee that the system can run safely.

1引言分布式管理信息系统通常由一个中心系统和数个分布于不同运行环境中的子系统构成。中心系统是分布式信息管理系统的核心，负责数据的汇总、处理、报表和分发。

Depending on this thought, and according to the relating principles of the science about system, we carried through the initial creating thought about innovation , which have already been discussed frequently by the experts. The innovative elements are the most radical factors in the innovative system, which are also the basal ingredients that creating the system. Complexity and uncertainty are the intrinsic characters of the factors, which endow the innovative activities with insignificance of unfolding; the mechanism of non-linearity makes these elements to produce all kinds of affiliations, subsequent the mechanism of conformity coordinates as well as colligates and blends and advances on the basis of non-linearity, thereby the innovative behaviors achieve the leap in the affects and functions, so the systematic affects and functions forms, the innovative behaviors construct the practical framework in the landscape and portrait orientation; in fact, the process of the systematism of innovation is human beings social behaving, so, the evolvement of the systematism of innovation possesses the essential natures of opening and arrangement as well as self-organizing and rushing, which are the principles of evolvement.

我们就是立足于这一思维方式，运用系统科学的有关原理，对近几十年来被学者专家频频讨论的词——创新系统进行了生成性的初步思考：创新要素是创新系统的最基本的因素，也是生成创新系统的基本因子，复杂性和不确定性是创新要素与生具有的内在秉性，而正是这些秉性的存在才赋予了创新活动以开展的现实意义；非线性机制使得各创新要素之间产生着千丝万缕的联系，整合机制又在非线性机制的基础上进行整理、综合、融会和提升，从而实现了创新行为在效应和功能上的飞跃，形成了创新的系统效应和功能，创新行为在时间和空间上建构着系统的实践结构；创新系统化毕竟是人类的社会实践行为，在创新系统化的过程中创新主体要积极地使其具有开放性、层次性、自组织性和涌现性，这也是创新系统化的运行理念。

Taking the development platform of HVDC power transmission for example, the calculation result of impedance-frequency characteristic of traditional line commutated converter and that of FCC are compared. Simulation results show that the impact of impedance-frequency characteristic of converter on the resonance frequency of AC system is not negligible, and FCC can enhance the strength of AC system in a certain extent, improve system stability and effectively reduce AC equivalent impedance under resonance frequency, thus the harmonic instability of HVDC power transmission system can be avoided.

以直流输电开发平台为例，对传统电网换相换流器(line commutated converter，LCC)与FCC的阻抗频率特性计算结果进行对比，仿真结果表明换流器的阻抗频率特性对交流系统的谐振频率有着不可忽略的作用，FCC在一定程度上提高了交流系统强度，改善了系统稳定性，有效降低了系统谐振频率下的交流等值阻抗，从而更好避免直流输电系统谐波不稳定现象的发生。

The double logarithm curves represents two down concaves, the cross flow comes from cave system to fracture system and the equivalent triple continuous medium channels to the fracture system and cave system.

所绘制的双对数导数曲线表现为2个下凹部分，分别表征溶洞系统向裂缝系统的窜流，等效连续介质向裂缝系统、溶洞系统的窜流。

The model has the following features: 1 The security information provided by the assessment result is more dependable because of the consideration of some main uncertain factors; 2 The improved analytic method of power system DSR and the dynamic equivalent technologies are applied to reduce the computing time and to make the model more practical; 3 Step-up assessment strategy is adopted in order to balance the precision and computing time requirements; 4 Decompounding of system insecurity indexes to each system component, or to each generator and consumer, and the visualization of assessment results, will help the operators to understand the security status of the power system more clearly; 5 The assessment results can be beneficial to the preventive control in traditional power systems and the security pricing in power market environments.

模型具有如下特点： 1由于综合考虑了一些不确定因素对系统安全性的影响，使得评估结果更加可靠； 2采用求解电力系统动态安全域的改进解析法，结合动态降维技术，大大减少了动态安全域的计算时间，使得模型比较实用； 3采取逐步递进的评估策略，以适应计算精度和计算时间要求； 4可定量分解出各元件或各发电与用户对系统不安全的贡献，配以形象直观的评估结果显示，使操作人员清楚了解系统的安全状况； 5评估结果在传统电力系统可帮助制定预防控制措施，在电力市场可用于安全性定价。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。