查询词典 field control

Methods The study was carried out in laboratory and field in Guangzhou from September to November in 2007. The Mosq-ovitrap in tested group with yeast-generated CO2, Panicum maximum infusion, tyre infusion, L-lactic acid dilution, or darken surface and that in control group with tap water were set at intervals of 20 cm, respectively.

研究在实验室和现场分别进行，实验组诱蚊诱卵器中分别添加酵母发酵产生的CO2、大黍叶浸出液、轮胎浸出液、乳酸稀释液以及改变杯身的颜色，对照组加过夜自来水，布放5 d，计算捕获的白纹伊蚊数量和产卵的数量。

The analysis of the optical signal transmission characteristics and the physical parameters provides the theoretical foundation for optimizing the design and improving the performance of AWG; and the optimizing design numerical value calculation method solves the complex problem of the optimizing design of the AWG, it can also provide a way for AWG computer aided design system; the AWG optical signal processing analysis provide a way for optical signal Fourier transform, serial and parallel transmission, circle shift, matrix transform and differential processing; the optical signal processing characteristics of AWG develop AWG to use for new field, and the optical signal processing will play an important role on all-optical networks in the future; by the definition of the wavelength transform matrix of the AWG, the signal output positions that come from these input signals of the different wavelength or the same wavelength but the different input ports and carrying different signals can be accurately determined, and the wavelength transmission matrix plays an important role for analyzing the routing of the complex optical network, or designing the network nodes such as the optical path add/drop multiplexer and optical cross connect device; the wavelength transmission matrix also provides a method for monitoring and managing the wavelength transmission of the optical network nodes; e analysis of the AWG' OXC node structure and wavelength routing provides a way for realizing the OXC, especially for multi-path/multi-wavelength OXC and the intelligence node of the optical networks; by the studying of the control plain characteristics, router, traffic engineering, program and the improved arithmetic of the wavelength routing, the method for realizing the GMPLS' OXC optical transport network is provided, and it play an important role for the study of the automatic switched optical network; the time-frequency analysis can provide more information about the dispersion and energy changes of .the pulsed light transmission in the singlemode fiber, it also provides more useful parameters for analyzing the dispersive accumulating and dispersive compensating.

AWG光信号传输特性与相关参数的分析，为进一步优化设计AWG及提高其性能提供了理论依据，而优化设计计算数值方法解决了AWG优化设计计算的复杂问题，为进一步建立AWG的计算机设计系统提供了基础；AWG光信号处理的特性分析，提出了AWG应用的新领域，为光信号的傅立叶变换、串并传输、循环移位、矩阵变换、微分处理等提供了一条途径；波长传输矩阵变换关系的建立，不仅得到了确定多路AWG每路信号从输入端口到输出端口的准确输出位置的方法，而且在分析应用AWG实现复杂的光通信网络路由的连接、特别在设计分插复用器和交叉连接器等网络节点时有重要的作用，能有效而准确地确定波长的路由关系，为实现节点波长传输路由的监控和管理提供有效手段；基于AWG的OXC结构和波长路由的确定为实现OXC技术、特别是多路多波长的OXC和光网络的智能节点技术提供了有效的方法；控制平面的特征、路由器、流量工程、程序及改进的波长路由算法的研究实现了基于GMPLS的OXC光传送网络的控制平面，为建立自动交换光网路提供了一定的基础；时频分析可以更直观和更清晰地描述脉冲信号在单模光纤中传输色散和能量的变化，为色散积累和色散补偿提供有效的分析参数。

ABSTRACT Particle filter is a new real time inference algorithm which is based on Bayesian inference and Monte carlo method. Because of its unique characteristics such as flexible, easy to implement, parallelizable, extensive applicability and efficient to process nonlinear problems, particle filter has been paid more and more attention in recent years and becomes a new and very promising hot topic in applied statistics, signal processing, automatic control, artificial intelligence and machine learning communities. At the same time, the formidable increasing computational power and some recent developments in applied statistics and probability theory has stimulated many advances in this field.

始于20世纪90年代初的粒子滤波器技术是一种基于贝叶斯推理和蒙特卡罗方法的实时在线推理算法，因其具有灵活、易于实现、并行化、应用前景广阔以及有效处理非线性问题等特点，受到了越来越广泛的重视，成为统计学、信号处理、自动控制、人工智能、机器学习等领域新的研究热点，同时伴随着计算机计算能力的超指数增长以及应用统计学、概率论等一些学科的不断进步，使该领域的研究得到了迅速发展。

Accordingly, the technology of parametric curve real-time interpolation gradually turned into the attractive field of numerical control researches.

与之相适应，参数曲线实时插补技术也逐渐成为近年来数控插补技术研究的一个热点。

The author analyzed the construction of the electric control system applied to the imported PASSIM 8000 cigarette making machine and the application of Field Bus in it.

分析了进口PASSIM 8000 卷接机组电气控制系统的组成和现场总线技术的具体应用。

In order to examine how the flight control system of penetration aircraft is affected by the variable wind field, based on a kind of nonlinear dyna〓 tem, a differential game solution of quadratic payoff function is developed, so the worst-case wind model containing nonlinear factors is constructed.

为了考察变化风场对突防飞机飞行控制的影响，推导了一类非线性动力学系统二次型性能指标下的微分对策解，得到一组含有非线性因素的最坏风模型。

The control theory grows vigorously, permeate through each field of the human activity rapidly with its strong vitality, it have exerted an extremely extensive and deep influence to scientific research, work, economic management, social life and the practice knowledge of people.

控制理论以它强大的生命力，蓬勃发展，迅速渗透到人类活动的各个领域，对科学研究、劳动生产、经济管理、社会生活和人们的认识，产生了极其广泛而深刻的影响。

In introduction and in absorption international vanguard technology foundation independent development product PEIAN6000 series product, The product widely applies in the steel and iron, the oil field, the petrification, the spinning and weaving, the building, the revertex, the ceramics, the papermaking, the hardware, the engine bed, mining, printing, forging and so on in each kind of industrial equipment, Is the enterprise most ideal energy conservation, the transmission, the control application product.

在引进和吸收国际先进技术的基础上自主开发生产PEIAN6000系列产品，产品广泛应用于钢铁、油田、石化、化工、纺织、建筑、塑胶、陶瓷、造纸、五金、机床、采矿、印刷、锻造等各类产业设备中，是企业最理想的节能、传动、控制应用产品。

In this paper,taking several typical control types of Three Gorges reservoir area as the example,the effect factors, characteristics and rules of the soil erosion and its diversification of the soil physical and chemical properties under different vegetation types were studied by large numbers of pilot field survey and positioning observation.

占总面积66.3%的山区旱坡地是三峡库区江河泥沙的主要来源，为了控制三峡库区水土流失，科技人员对三峡库区坡耕地土壤侵蚀进行了大量的调查研究，但对于构建不同植被类型下的水土流失特征及其生态效应研究还停留在定性描述的阶段。

the digitized mapping technique is to combine the field data collection system with the computer assisted mapping system in surveys by computer technology.it aims to realize the information collected and processed digitally and automaticaity.the digitized mapping technique can cut short the working time,lighten the labor intensity and enhance the precision of the productions.the system consists of three parts,such as data input,data processing and data output.the survey-record digitized mapping technique is widely used in the digitized mapping working pattern.for its superiority over traditional plane-table mapping in accuracy and efficiency,the large scale digital mapping is becoming more and more popular.compared with traditional analogue mapping,digital mapping has more quality control pivotai points,and its contents and methods are more complex.with the appearance of new technology gps ,the coordinate of different levels controlling points may be surveyed in high precision and it has been applied widely in topographic survey.the operation process of gps electronic tachometer is introduced and its application in topographic survey is br

计算机应用论文，计算机论文， rtk ，全站仪，数字测图，地形测量， gps论文摘要：数字测图是在测量工作中利用电子计算机技术将野外数据采集系统与内业机助制图系统相结合，其目标是实现信息采集处理的数字化、自动化、信息化。数字测图可以缩短作业时间，减轻劳动强度，提高成果精度。数字测图系统主要由数据输入、数据处理和数据输出3部分组成，数字测图作业模式中测记式数字测图应用最为广泛。大比例尺数字测图正以其测图精度高，成图速度快等优势逐步的取代传统的，以平板仪为主的模拟测图。与传统的模拟测图相比，数字测图的质量控制关键点更多、内容与方法更为复杂。gps 新技术的出现，可以高精度并快速地测定各级控制点的坐标，在地形测量中已得到广泛地应用。本文介绍了gps 配合全站仪的作业流程，简要阐明了其在地形测量中的应用。在利用实测数据成图的过程中，解决一些常见的问题，并给出解决的办法及依据，同时给出一些有益的结论，以适应实际使用的需要。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。