查询词典 System

Third chapter illustrate the design scheme for justification development system, amalgamation steer the argumentum;And code design in the detailed design sum the database design of whole system;Recommended the detailed design information of sum of the shuttering cake structure of the aetioporphyrin system;Analyzed the library to manage the system's appliance demand, according to the database design theory proptosis of one-step and one-step earth joint system demand manual, local ER general view, overall situation ER general view, system relation modal, leaven the modal;Arrangement in parallel proptosis the valve key source of the said system code in the procedure the amalgamation commit the interpretation, justification.

第三章说明开发系统的设计方案，并进行论证；以及详细设计中的代码设计和整个系统的数据库设计；介绍了本系统的模块结构和详细的设计信息；分析了图书馆管理系统的应用需求，按照数据库设计理论一步一步地给出了系统需求说明书、局部ER图、全局ER图、系统关系模式，子模式；并列出了该系统的关键源程序中的代码并做解释、说明。

Therein, by adopting the ISCSI protocol, the local data storage sub-system constructs the circuital access pattern of the taxation data. The system eliminates the unbalance phenomena between the capability and the demand of the data storage under the traditional bus storage pattern. Under the centralized control pattern, it provides the information access and shares service with the great data volume, the high speed of data transportation and the high availability for the taxation system. By remotely building a backup data center that is totally consistent with the local data center on the IT foundational fabric, the remote data backup sub-system uses the geographical dispersibility of the remote data center and adopts the LVR software replication technology. It implements the synchronous data replication between the local and remote data center, changes the zero standing capability on the great disaster event under the single data center pattern and raises the standing capability on the disaster events for the application and data in the taxation system. By adopting the dynamic replication technology between the heterogeneous data source, the heterogeneous data conformity sub-system successfully shields the various heterogeneous ingredients of the present system.

其中，本地数据存储子系统采用ISCSI协议构建了税务数据网络存储模式，消除了传统总线型存储模式下数据存储性能和存储需求之间的失衡现象，在集控管理模式下为税务系统提供了超大数据容量、高数据传输率和高可用性的信息存取和共享服务；远程数据备份子系统通过在异地构建一个和本地数据中心IT基础架构完全一致的备份数据中心，利用远程数据中心在地理上的分散性，基于LVR软件复制技术实现了本地和远程数据中心之间信息的实时同步，改变了过去单一数据中心模式下对大型灾难事件的零抗灾能力，提高了税务系统内应用和数据对灾难性事件的抵御能力；异构数据整合子系统采用异类数据源动态复制技术，成功屏蔽了目前系统内存在的各项异构成分。

This paper introduces the application of the computer monitor and control technique in the drive control system of paper machine, and puts forward a scheme of the master system and the slave system, the scheme and structure of hardware, key circuit used the slave system are discussed, the software system fit to the drive control system of paper machine is designed . In allusion to request of system,design the configure software and human-machine interface of the master system.

文中介绍了计算机监控技术在纸机传动控制系统的应用概况，提出了在纸机传动控制系统中上位机系统和下位机系统的设计方案，并对下位机系统的硬件方案、结构以及关键电路进行了分析，设计了符合纸机传动控制需要的软件系统，针对控制系统的要求，设计了上位机系统的组态软件和画面。

According to the calibration information, Research and development status of automotive bus network and automotive calibration system is studied and the research significance is generalized. First of all, the collectivity precept for calibration system is designed, the calibration platform is set up based on the XCP Protocol and the calibration object is CAN bus network simulation ECUs. Then how to create the calibration system based on Ethernet and Series communication is expatiated, the communication way from computer to ECUs is introduced and the calibration system is tested. Then how to create the calibration system based on CAN bus communication is expatiated, the design and the interface programme are introduced and the calibration system is tested. At last the platform is used to calibrate the CAN bus network simulation system to regulate the simulation system's topology and communication speed to test the communication protocol's feasibility.

论文首先设计了标定系统的总体方案，以CAN总线实时仿真系统中的节点标定为研究对象，采用XCP协议建立具有串口、以太网和CAN总线三种通讯接口的标定平台；然后，具体开发了基于以太网通讯和基于串口通讯的标定系统，完成了上、下位机部分的软件设计，确定了标定系统在两种通讯方式下的数据处理方法，并分别应用两种标定方式标定下位机仿真系统的参数，让下位机仿真系统在规定的通讯协议和拓扑结构下进行仿真，对所设计的标定系统进行了调试；接着，设计了基于CAN总线通讯的标定系统，完成了CCP协议（&XCP on CAN&）的接口程序设计，并通过混合动力汽车一种拓扑结构的通讯仿真对所设计的系统进行了调试；最后，应用开发的标定系统，对混合动力电动汽车网络通讯协议进行了仿真研究，并根据实验结果进行了分析。

In recent years, some derived yeast two-hybrid systems have been established, including yeast two-hybrid dual bait system, reverse two-hybrid system, membrane-associated two-hybrid system (SRS, TOPIS and split-ubiquitin base two-hybrid system) and transcriptional factors-associated two-hybrid system(RTA system and PolⅢ based two-hybrid system), which promise to overcome some limits and improved the sensitivities of the original yeast two-hybrid system.

十余年来，随着酵母双杂交迅速推广，不断涌现出一些衍生系统，其中包括酵母双杂交的二元诱饵系统，逆向双杂交系统，非转录读出特点的双杂交系统（如Sos蛋白招募系统、PI3K介导的靶蛋白识别系统和断裂-泛素为基础的双杂交系统）以及转录激活因子与其相关蛋白之间的相互作用的双杂交系统（如以polⅢ为基础的杂交系统和RTA系统）等。

The paper investigates both block-type pilot linear minimum mean square error algorithm and IEEE802.16 OFDM channel estimation analysis. Simulation results confirm the block-type pilot structure is more suitable for IEEE802.16 system. An optimal pilot setting algorithm, based on space frequency domain, is explored and the pilot chart is presented. The proposed algorithm finds its application in MIMO-OFDM. Simulation results show the algorithm presents a good approximation to the perfect channel state information curve, with about 2dB difference in SNR. The simulation results also demonstrate the algorithm achieves fairly high stability in the environment of fast fading, performance of the proposed algorithm is better that of pilot training channel estimation.3. Taking into account the characteristics of IEEE802.16 OFDM system, OFDM system simulation platform is constructed in Matlab, exploiting simulink as a tool. OFDM modulation and demodulation simulation system are configured on LabVIEW platform. All the system signal processing is simulated, including defining system parameters, designing modulation model, and verifying all the proposed algorithms under different environments, such as white Gaussian noise, multi-path fading, with or without guard interval etc. Bit error performance is evaluated. The research provides valid theoretical basis for practical OFDM system performance evaluation.4. Taking advantage of software radio, the paper designs a hardware platform with both 256-IFFT/FFT and 512-IFFT/FFT OFDM schemes co-existing in one platform. You can predetermine one from the two schemes to carry out almost the same model function with different system performance and parameter setting.5. Referring to IEEE802.16 standard, the paper proposes a design method for generating signals and frames suitable for laboratory investigations implemented in laboratory environment.6. Based on 6701evm digital evaluation card, combined with analogy front-end, the paper designs a DSP software model to deal with baseband signal processing. An overall OFDM scheme, with modulation and demodulation function, is accomplished.

讨论分析了MIMO-OFDM中一种基于空频域的最优导频设置算法，给出了导频图案，通过仿真实验表明，该算法与理想的信道状态信息曲线非常接近，信噪比差距约在2dB左右，并且在快衰落条件下具有较好的稳定性，其性能要优于基于前导训练的信道估计方法。3、根据IEEE802.16OFDM系统特点，论文分别在Matlab中应用Simulink工具构建OFDM系统仿真平台、在LabVIEW平台上实现了OFDM调制解调仿真系统，模拟了整个系统的信号流程，进行了OFDM仿真系统参数的选择和调制模块的仿真设计、论证各算法性能，并根据各种不同的条件：例如高斯噪声、多径衰落、有无保护间隔等，对系统的误码特性进行了评估，为正确评价实际OFDM系统的性能提供了有效的理论依据。4、论文以软件无线电思想作为指导，提出了以256点IFFT／FFT为核心和以512点IFFT／FFT为核心的两种OFDM算法模式并存于同一个硬件平台、且可预选的方案，它们在参数选取和性能指标上有所差异，均实现了相似的模块和功能。5、论文参考IEEE 802.16无线网络标准的参数设置，针对本设计系统的应用环境和系统硬件的性能速率，提出了一种应用于实验室环境的信号结构、帧格式等参数设计。6、论文基于TI公司的6701evm数字评估板卡，结合模拟前端搭建数字中频平台，设计了基带处理的DSP软件模块并进行系统调试，基本实现了一套完整的OFDM调制解调方案。

Its main components are cotton collecting head, hydraulic system, chassis, operating system, cotton transferring system with wind power, cotton box, electron monitoring system, wiring system, shower wetting system, auto lubricate system and dynamic protecting system etc.

主要由采棉头部件、液压系统、底盘、操纵系统、风力输棉系统、棉箱部件、电子监控系统、电器系统、淋润系统、自动润滑系统、动态防护系统等构成。

They include:① the "three-horse carriage" system of the rural youth education,② the "dumbbell type" management system of the rural youth secondary education,③ the "spindle type" investment management system of the rural youth secondary education,④ the new security mechanism and system of the rural youth secondary education,⑤ the new management system of the teachers of the rural senior middle school,⑥ the management system of the professional and technical training of the rural youth,⑦ the seven patterns which rely on the Rural Communist Youth League to exploit rural youth human resource,⑧ the "management modeling carbinol structure" and the management system of the rural youth center,⑨ the system connecting various rural youth organizations, economical entities and the government, and ⑩ the mechanism of leading and security which can attract the youth workers gone out to come back.

包括：（1）关于农村青年教育的&三驾马车&体系的建立；（2）&哑铃型&农村青年中等教育管理体制架构的建立；（3）&纺锤型&农村青年中等教育投资管理体制的建立；（4）新的农村青年中等教育的保障机制及其体系的建立；（5）新的农村高级中等学校师资管理机制的建立；（6）农村青年职业技术培训的管理体制的建立；（7）依靠农村共青团组织开发农村青年人力资源开发的途径及其作用机制——七种模式的建立；（8）农村青年中心管理体制和运行机制的&仿甲醇结构管理模型&的建立；（9）农村经济实体与政府及各种农村青年组织关系体制的建立；（10）农村外出青年劳动力回流的疏导和保障机制的建立。

In order to make the right evaluation of the state which is the consumption consume of the steam line system, we make an test of the heat loss of the steam line network. And we also probe into the heat loss of the steam line system and the factors. In order to solve the heat inefficency of the steam line system, we look into the present situation of the steam line network and the state of heat preservation. Then we found the open questions and the weak points of heat preservation. We make the evaluation and affirm the reason of the heat inefficency of the system. We adopted the combination of bench test and engineering optimization, then we screened out high-quality adiabator, and designed the best heating composition. We designed and developed the software"The analysis and optimization of energy of the steam line system in thermal production" It can offer convenience to the computational analysis of heat loss of the steam line system. It can also be used for design calculation and experimental verification of steam pipeline feasible radial-radius, so it can offer technical support for the reduce of heat loss of the system, the raise of well head steam quality and the raise of heat efficicency of the steam injection system.

为了对输汽系统的用能状况作出正确的分析评价，对输汽管线热损失进行了测试计算，对输汽系统热量损失及影响因素进行了探讨；为了解决输汽系统热效率低的问题，从输汽管网现状及管道保温状况调查入手，掌握存在的问题和保温薄弱环节，做出分析评价，确认导致系统热效率低的原因，采用室内试验与工程优化相结合的办法，筛选出优质保温材料，设计最优保温结构，同时设计开发了&热采输汽系统能量分析及优化软件&，为输汽系统热量损失计算分析和保温结构优化提供了方便，还对输汽管线合理辐射半径进行了设计计算及实验验证，从而为降低系统的热能损失，提高井口蒸汽干度，提高注汽系统的热效率提供了技术支持。

The new circumstances that the discrete manufacturing enterprise is confronted with are analyzed; the function and configuration of production system is expounded; the research actuality and contents about production system capacity in the discrete manufacturing enterprise are summarized; the main research contents in this paper are developed.2. The calculating and analytical methods about production system capacity are studied systemically, a model to calculate rough-cut capacity instantly in "excel" table style is designed, the means to analyze production capacity in different production mode are brought forth, and the balance tactics of production capacity versus load are put forward.3. The application characteristics used in production system about the methods of Computer simulation and CRP in the MRPII/ERP are analyzed and compared; the advantages of Computer simulation method are pointed out; and the simulation researches aiming at production system capacity are implemented by Ithink simulation software.4. A simulation model is founded under the analysis of production system capacity in the production system background of a firm; the change instances of yield, output rate and WIP in the production system are simulated by the action of procurement cycle, machining time, setup time and so on. 5. The change instances of production capacity in the assembly stage are simulated , and rational employees are obtained.

本文主要进行了以下几个方面的研究：1、分析离散型制造企业面临的新情况，阐明生产系统的功能和结构，对离散型制造企业生产系统生产能力的研究内容和现状进行分析，提出本课题的主要研究内容。2、在系统地研究生产系统生产能力的计算和分析方法后，设计了用Excel表快速计算粗能力的方法；给出不同生产方式下的产能分析方法，并提出产能与负荷平衡的策略。3、比较和分析了MRPII/ERP的能力需求计划方法与计算机仿真方法在生产系统中的应用特点，指出计算机仿真方法的优势，并用Ithink仿真软件对企业生产系统生产能力进行了仿真研究。4、以A公司的生产系统为背景，在对生产系统生产能力分析的基础上建立了仿真模型，模拟了在采购周期、加工时间、调整时间以及返工率、废品率、机械开工率等因素作用下生产系统的产量、产出率和在制品数量的变化情况。5、研究在装配阶段生产能力的变化情况，通过仿真优化后确定合理作业人员数量。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。