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Targeting the biomass rice stalk,we use linestone as catalyst and cracking catalyse the tar which was pyrolysised from the target.We build the rice straw biomass gasification tar removal catalytic cracking process model by the least squares support vector machine model and optimize the model parameters through genetic algorithm.We also has gotten the best catalytic cracking temperature and gas residence time, making the highest rate of catalytic cracking tar.We made wood biomass as a target analysis so that we can thermally crack tar,and we can use genetic algorithms to optimize the model parameters that is based on the wood biomass gasification pyrolysis tar removal process model through the least-squares fitting method,then we got the best pyrolysis temperature and equivalence ratio,so that it is possible to make the tar content reach the minianum.Based on the least squares support vector machine model,we had established the model of the biomass sawdust Compression molding process and fit the Optimization Parameters objective function of the molding process .

以生物质稻秆为对象,采用石灰石作为催化剂对稻秆热解焦油进行催化裂解,由最小二乘支持向量机模型建立了生物质稻秆气化焦油催化裂解脱除过程的模型,并用遗传算法对模型参数进行了优化,得到了最佳的催化裂解温度和气相停留时间,使得焦油催化裂解率达到最高;以生物质木屑作为分析对象,对其进行热裂解脱焦,并依据最小二乘曲线拟合方法建立了生物质木屑气化焦油热裂解脱除过程的模型,用遗传算法对模型参数进行了优化,得到了最佳的热裂解温度和当量比,使得焦油含量达到最小。

In building the simulation models for manufacturing missions, based on the combination with the multi-agent method and the GOOPN method, the compoundable method is presented, which makes the models more intelligent. Based on the result above, combined with the GOOPN models and the GERTS model, we put forward EPN-GERTS model through embedding Petri net into GERTS model, which can simplify the complexity in building models, and also improve the defects of GERTS model in describing resource conflicts and Petri net model in building models. In building the simulation models for development missions, the improved GERTS model is present to describe the development processes in QRMS. Through dynamically computing the redo times in GERTS, the improved model can reflect the operation character of development process. The simulation results are more precise when we use the models above.

针对构建快速研制系统的仿真对象问题,提出了基于多Agent的快速研制系统可靠性复合仿真建模方法,增强了仿真模型的智能性;在此基础上,针对制造任务,将Petri网嵌入到GERTS网中,提出了用于快速研制系统制造任务可靠性仿真的EPN-GERTS模型,简化了建模过程,同时也能考虑任务之间的资源冲突;针对研制任务,提出了用于快速研制系统研制任务可靠性仿真的改进GERTS模型,该模型可以描述设计迭代过程的动态运行特点,使仿真结果更加准确。

The main function of the system is described, and data types of database and the operation modules of model-base are also discussed. The flight path marking model, protected-area auto-generating model, obstructer extracting model, obstructer threat evaluation model, flight conflict avoiding model and flight ordering model are used in flight procedure management. After sufficiently elucidating the system structure and function, the assistant decision-making process supported by the system for chief officers is analyzed finally.

首先描述了该系统的主要功能,讨论了系统数据库的数据类型和模型库的远行模块,指出通过航迹标称模型、保护区自动生成模型、障碍物提取模型、障碍物威胁程度评估模型、飞行冲突避让模型、飞机进场离场排序模型等对军机飞行程序进行合理管理,最后在对系统结构与功能充分阐释的基础上,分析了该系统为指挥员提供辅助决策的流程。

It described the basic thinking and method of building simulation model including the modeling method of conceptual model(conceptual model includes the hierarchical model,object model, dynamic model),and basic thinking of building the simulation model of coal wharf logistics system with the new software of Witness.

同时本文针对如何应用新一代仿真软件witness建立煤炭码头物流系统仿真模型,阐述了基本思路,建立煤炭码头的层次模型、动态模型,最后结合具体码头的特色建立其仿真模型。

Results Group C had the symptoms such as reduced activity, acceded, indulge in lying and weight loss after 3 weeks of immune injection, 14 out of 16 SD rats in Group B had the same symptoms as Group C after 4~5 weeks of immune injection, the serum enzymes in model groups increased significantly compared with those of the control group, model group C was much higher than model group B; the duration shorted, amplitude decreased, multiphase wave increased in electromyogram of model groups; MRI examination revealed samples from model group B and C had one positive case each, which presented T1MI isodensity or hypodensity signal, T2MI and STIR serial hyperdensity signal, revealing muscle inflammation; all rats'skeletal muscle from model group C and 11 out of model group B had pathological changes, which exhibited striated muscle focal fiber degeneration, necrotized and inflammatory cell infiltration, interstitial vessel wall thickening, random cardiac muscle samples had 3 positive changes, which had similar changes to skeletal muscle, there was 1 positive change from lung sample.

结果:模型C组于免疫注射第3周左右开始出现活动减少,倦怠嗜卧,食欲体重下降等表现,模型B组有14只SD大鼠于免疫注射第4~5周出现上述症状,较C组为轻;模型组肌酶谱中,肌酸激酶、乳酸脱氢酶、谷草转氨酶与对照组比较明显升高,模型C组较模型B组升高更显著;模型组肌电图时限缩短,波幅降低,多相波增多;磁共振检查模型B组和C组选送标本中各有一例有阳性改变,表现为T1MI等或稍低信号,T2MI及STIR序列为高信号,提示肌肉炎症水肿改变;模型B组有11只,模型C组全部大鼠骨骼肌出现病理改变,表现为横纹肌局灶性分布的肌纤维变性炎细胞浸润,间质小血管壁增厚、扩张,随机选送的心肌标本中有3例有阳性改变,表现与骨骼肌相仿,选送的肺标本中有1例有阳性改变,表现为蛋白渗出,炎症细胞浸润和小血管改变。

This paper presents a workflow management system based on software agent. It applies an activity-based modeling method and builds formal workflow model. It also puts forward an agent model composed of activity model, intention model, skill model, self-capacity model and companion model to implement workflow management. An agent federation which can be nested is constructed to enhance system flexibility and a shared domain ontology based on workflow is defined to support semantic interoperation among agents.

文章提出了一种基于软件agent的工作流管理系统,采用基于活动的工作流建模方法,建立了形式化的工作流模型,在此基础上,定义了包括活动、意向、技能、自身能力、伙伴等模型的实现工作流运行的agent模型,构建了可嵌套的agent联邦结构,增强了系统的灵活性,并定义了基于工作流的共享领域本体论,支持agent间的语义互操作。

The system implemented forest fire model selection automatically and intelligently. BP artificial neural network model of forest fire model selection was build by treating forest fire environment data as inputting variable and treating appropriate forest fire model as outputting variable. At the same time, we studied the methods of acquiring and calculating data of inputting and outputting. The system implemented machine of model selection automatically based on dynamic data driven technology. We selected 72 items experimental data from historical forest fire records in Beijing to experiment and confirm the validity of model selection. It turned out that the reliability of model selection is more than 80 percent.

3基于BP人工神经网络方法设计了林火模型适宜性选择技术框架结构,通过神经网络形成林火模型选择知识,实现了林火模型的自动化和智能化选择;以火场环境因子为输入变量,以适宜火场环境模拟的林火蔓延模型作为输出变量,构建了林火模型选择神经网络模型;研究了输入、输出因子数据的获取与计算方式,实现了动态数据驱动的林火模型自动选择机制;以本京市为例,选择了有详细火场情况记录的72场林火作为实验样本,其中60条记录作为学习样本集,12条记录作为验证样本,对神经网络进行了学习和验证,实验结果表明,模型选择精度可达到80%以上。

So this paper applied Grey forecasting GM (1,1) model and its generated models, the Grey Markov numerical forecasting model and Comprehension model, to develop a net interest margin change forecasting model, a net interest margin forecasting model, a new decision model concerned with commercial bank interest-sensitive assets portfolio and a new expected return decision model of interest-sensitive assets portfolio.

本文以灰预测GM(1,1)模式,以及其衍生之灰马可夫预测模式与内涵模式,构建新的净利息边际变动率预测模式、净利息边际金额预测模式、利率敏感性资产投资组合最适配置决策模式与利率敏感性资产投资组合最适配置预期报酬率决策模式等利率敏感性缺口管理预测模式。

This article that focuses on the systematic and in-depth research in the current primal problem about abnormal burst pressure reservoir depress burst pressure has procured following main fruits:1 It forms the method which could obtain massive vertical static state mechanics parameters.2 In a foundation of acquisition of rock mechanics parameters,apply bent lamella that as mechanical model along with characteristic of actual geologic characteristics to analysis curvature for anticlinal strcture, get homologous tectonic stress value throug relation between the curvature and stress and different principal curvature in anticlinal structure,consequently set up laminational stress model for anticline reservoir. The block lamination for existed fracturing date has formed method of setting up mechanical model of lamination terrestrial stress by abtaining the block tectonic stress coefficients which are got by complex utilization test, laboratory test and fracturing date playback.3 Analysesing the main reason which lead to high burst pressure by considering the characteristic of reservoir geology,reservoir,and rock mechanics and reservoir damage,etc.Establishing burst pressure quantitative prediction model which provide gist for depressing construction risk and optimizing construction craft under the condition of open hole completion ,gun-perforated completion and damaged reservoir.4 Provding theoretical basis for interpreting acidification pretreatment which could depress busrt pressure by finding the relation between the influencing factors and rock machanics parameters and analysing the factors that have effect on rock mechanics parameters. Expounding the mechanism of reaction of mixed monomineral and acid from the angle of microcosmic element, evaluating quantitatively acid sensilility of different kinds of mineral effectively, and determing the first-order reaction dynamical equation of each mineral.5 Revealing rock mechanics property chage as a result of acid flooding in different condition by sandstone traumata experiment in different temperatures which combined with rock mechanics triaxial stress experiment.6 Associating damage mechanics with sandstone acidizing, established sandstone damage mechanics model in the foundation of the recognition on the rock mechanics parametric variation which is caused by acid-rock reaction in both macroscopic view and microscopic view ,also demonstrated those processes and quantitative estimated the acid busrt pressure to direct the site operation.

本文针对目前异常破裂压力储层降低破裂压力的主要问题展开较为系统和深入的研究,取得了以下主要成果:1形成了利用测井资料,结合室内岩芯测试结果,获取静动岩石力学参数的相关性特征,从而获得纵向上大量静态力学参数的方法。2在获取了岩石力学参数的此基础上,利用弯曲薄板作为力学模型,结合区块实际地质特征对背斜构造进行曲率分析,通过曲率与应力的关系,利用背斜构造不同部位的主曲率求得相应的构造应力值,从而建立起背斜储层的分层应力模型;对已有压裂资料的区块分层,形成了综合利用测试、室内实验、压裂资料反演获得该区块构造应力系数,建立起分层地应力的力学模型的方法。3综合考虑储层地质、油藏、岩石力学特性和储层伤害等因素,分析造成高破裂压力的主要原因,综合利用岩石力学、弹性力学等知识,建立了裸眼完井、射孔完井条件下以及储层受到伤害后的储层破裂压力定量预测模型,为降低施工风险和优化施工工艺提供了依据。4完成了物性、岩性影响岩石力学参数的因素分析,找出了各影响因素和岩石力学参数之间的关系,为从机理上解释酸化预处理降低破裂压力提供了理论基础;从微观元素的角度阐述了单矿物与酸反应的机理;并在此基础上,有效评价了各种矿物的酸敏感性,定量确定了岩石中各矿物的一级反应动力学方程。5完成了不同温度下的酸液类型、酸液浓度、注酸量等一系列砂岩损伤实验,结合岩石力学三轴应力实验,系统揭示了在不同条件下注酸而引起的岩石力学性质变化。6将损伤力学与砂岩酸化相结合,在宏观、微观两个方面认识酸岩反应引起岩石力学参数变化基础上,建立了砂岩损伤力学模型,并对其进行验证,在此基础上定量计算酸化后的破裂压力,有效指导现场施工

In this topic, the dynamic analysis methods for piezoelectric vibrator are studied systematically based on the theoretical model, FEM numerical experimentation and FEM governing equation for given compound-mode vibrator, and some valuable conclusions are obtained. The main work accomplished is summarized as follows: 1.Elaborate the main modeling methods for piezoelectric vibrator and the significance and necessity to study the dynamic characteristics of piezoelectric vibrator which emphasize the urgency of this paper. 2.Take the bending deformation induced by piezoelectric ceramic as example, the energy transfer mechanism of electric energy to mechanical energy are analyzed; the motion and force transfer mechanism are analyzed for the longitudinal-bending vibrator. 3.Based on mode assumption and Hamilton principle, the coupling model of piezoelectric vibrator of linear USM is built; moreover, the equivalent circuit model is obtained and a coupling equation represents the relation between electric parameters and mechanical parameters is derived which provides foundation to match the vibrator and driving circuit. 4.Combine the constitutive equation of piezoelectric ceramic with elastic-dynamical equation, geometric equation in force field and the Maxwell equation in electric field and the corresponding boundary condition equation, the FEM control equation for piezoelectric vibrator of USM to solve dynamic electro-mechanical coupling field is established by employing the principle of virtual displacement. The equation lays the foundation to study the non-linear constitutive equation of piezoelectric ceramic driven by high-power. 5.Define the dynamic indexes of characteristic of vibrator and carry out variable parameters simulation by calculating the model parameters and the electric characteristics of vibrator are simulated according to the equivalent circuit model. By numerical experimentation, the working mode of vibration of vibrator and the shock excitation results of the working frequency band which provides the mode frequency to realize bimodal are analyzed. Detailed calculation of the electro-mechanical coupling field parameters is made by programming the FEM control equation.

本课题从理论模型、有限元数值试验、有限元控制模型等方面以复合振动模式振子为例对超声电机压电振子的动力学特性及其分析方法进行了全面系统地研究,得出了许多有价值的结论,主要概括如下: 1、阐述了目前针对超声电机压电振子的主要建模方法,对压电振子动态特性的研究意义和必要性进行了论述,突出了本文研究内容的迫切性; 2、以压电陶瓷诱发弹性体发生弯曲变形为例,分析了压电陶瓷通过诱发应变来实现机电能量转换的机理;对基于纵弯模式的压电振子的运动及动力传递机理进行了分析; 3、基于模态假定,利用分析动力学的Hamilton原理,建立了面向直线超声电机压电振子的机电耦合动力学模型,并据此建立了压电振子的等效电路模型,导出了电参量与动力学特性参量的耦合方程,为压电振子与驱动电路的匹配提供了依据; 4、从压电陶瓷的本构方程出发,综合力场的弹性动力学方程、几何方程、电场的麦克斯韦方程以及相应的边界条件方程,采用虚位移原理,建立了压电振子动态问题机电耦合场求解的有限元控制方程,为研究其大功率驱动下的非线性本构模型奠定了基础; 5、界定压电振子的动力学特性指标,对压电振子的机电耦合动力学模型参数进行计算及变参数仿真;依据等效电路模型,对压电振子的电学特性进行了仿真分析;通过有限元数值实验,对压电振子工作模态附近的模态振型及工作频率附近的频段进行了激振效果分析,找出了实现模态简并的激振频率;利用有限元控制方程,通过编程计算,对压电振子的力电耦合场参数进行了详细计算,得出了一些有价值的结论。

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推荐网络例句

Connectors are lines that can be anchored to particular places, called glue points , on the graphic object.

连接符,可固定在图形对象的特定的地方的线条。

Another way of putting it, too many agents have a say in each other's work, and bureaucratic rigor mortis sets in.

另一种表达是,太多的作用物在彼此的工作里都有话语权,官僚的僵尸开始抬头。

As someone aptly said,'there is no business without competition.

有人说恰如其分,没有业务竞争。