查询词典 Model

Firstly, the paper sets up a rational function model for the long run relationship between economic growth rate and the inflation rate by adding the cross product term of the both into the traditional model of "output-price" Phillips curve. The empirical analysis shows that the product term has substantial impact on the model\'s stability.

第一，本文在传统"产出一物价"型Phillips曲线长期模型中，加入了表现经济增长率与通货膨胀率乘积效应的交叉乘积项，建立了表现二者之间长期关系的有理函数模型。

Aimed at the safety requirement of WAP, the disadvantange of WAP＇s application model is analyzed, a new end-to-end safe model, named Double Encrypt＇s model, is developed. Its DES and IDEA algorithm are realized by the compiling language based on delphi 6.0, the most excellent IDEA algorithm that is suitable to encipher the algorithm in WAP application system is selected to transmit data safely.

为解决无线应用协议在应用中存在的安全隐患，探讨了WAP应用模型漏洞产生的原因，分析了目前WAP应用的3种实现模型及存在的不足，提出了一种新的端到端安全模型——双加密模型，并使用面向对象的编程语言DELPHI6.0实现了数据加密标准和国际数据加密算法两种对称加密算法，选择了适用于WAP应用的最优的IDEA算法。

Results: The tHey and blood fat level in blood plasma and expression of MCP-1mRNAof aorta on model group is obviously higher than that of control group (P＜0.05);the result of immunohistochemistry shows that the expression of VCAM-1 and MMP-2enhanced, Bcl-2 is lower; aorta slice shows endarterium discontinuation, strippingpartly, smooth muscle cell arrange puffly and chaotic, infiltration of lipoid ofdifferent degree are observed in aorta wall, pathological changes suffusion, morexanthoma cell, plaque protrude lumens. The they and blood fat level in blood plasmaand expression of MCP-lmRNA, VCAM-1, MMP-2 of aorta on intervention group aremuch lower than that of model group (P＜0.05); Bcl-2 of intervention group isstrengthened, and the pathomorphology and immunohistochemistry of aorta showpathological changes are slighter than model group.

结果：模型组，血浆中同型半胱氨酸浓度、血脂水平、主动脉MCP-1mRNA表达显著高于正常对照组(P＜0.05)，免疫组化示主动脉内皮细胞VCAM-1、MMP-2表达增强，Bcl-2表达降低；主动脉切片发现动脉内膜不连续，部分剥脱，平滑肌细胞排列疏松、紊乱，主动脉壁均见到程度不同的脂质浸润，其病变弥漫，泡沫细胞较多，可见斑块突出管腔；干预组，血浆中同型半胱氨酸含量、血脂水平显著低于对照组和模型组(P＜0.05)，主动脉MCP-1mRNA、VCAM-1、MMP-2表达显著弱于对照组和模型组(P＜0.05)，Bcl-2表达增强(P＜0.05)，主动脉病理形态学和免疫组织化学检测示病变轻于模型组。

Material and MethodsRA Rabbit Model group: 15 early RA rabbits of the same weight and variety Control group:10 normal rabbits of the same weight and varietyMethods of making RA rabbit model:elect 15 normal rabbits of the same weight and variety, dissolve Ovalbumin in 0.9% sodium chloride solution, to make the solution of 20mg/ml concengtration, blend the same quantity of complete Freund′s Adjuvant equably ,inject the mixed solution into endermic tissue of the rabbit′s scapular section, making the rabbits allergic, inject 1 ml of the mixed solution to one rabbit every time, inject 1 ml of the mixed solution in 5 different places of the rabbit′s scapular section, inject the rabbit one time every week,inject 3 weeks continuously,it turned out to be that the rabbits will be allergic, inject Ovalbumin blent with the 0.9% sodium chloride solution into the knee joint cavity of the rabbits in the fourth week, 5 mg Ovalbumin every knee joint cavity,two knees of every rabbit of the 15 rabbits are both injected,the arthrosis diameter and the exterior temperature of the knees will be added obviously in 24 hours,and they will drop gradually,at the time of the 14th or 21th day, the arthrosis diameter and the exterior temperature of the knees will get to the balance time,the incidence rate of RA is 100%.after the RA model succeeds,it is the early time of RA from the first week to the fourth week,after the fourth week,it is the late time of RA, the cartilage of the femoral condyle and the subchondral bone cortices will be changed unrecoverily.

资料与方法RA模型组：早期RA家兔模型15只，品种及体重接近。对照组：正常家兔10只，品种及体重接近。RA家兔模型制作方法：选取15只成年家兔，体重、品种接近，将卵蛋白溶解于生理盐水，配成浓度为20mg/ml的溶液，与等量完全弗氏佐剂混匀，注入家兔肩胛区皮下致敏，每只家兔每次注射1ml，于肩胛区5个不同区域注射，每周一次，连续注射3周而致敏，第4周向膝关节腔注射卵蛋白生理盐水溶液，每只关节腔注射5mg卵蛋白，15只家兔膝关节全部注射，24h内此关节直径和表面温度大幅度上升，以后缓慢下降，至14～21d达到平台期，发病率达100%。造模成功后第1～4周为早期改变，第4周以后出现不可逆的关节软骨及骨破坏。采用高频超声对RA模型组与对照组的膝关节髌上囊液体厚度、滑膜及股骨髁软骨厚度及软骨下骨皮质的回声情况进行对比观察。结果RA组模型组膝关节髌上囊积液及滑膜的厚度明显厚于对照组，其股骨髁软骨的厚度与对照组相比无明显差异，其软骨下骨皮质与对照组相比无明显改变。

The emulations and experimental results indicate that the theoretical model combined the neural network and genetic algorithm not only can conquer the disadvantage, which network is prone to enmesh the partial minimal error, but also utilize the powerful artificial intelligence of neural network.; This model provides a new method and idea for the monitor systems management, meanwhile it also offer a new method for solving the problems of the undetermined information processing; This model has powerful studying function, high accuracy, and strong practicability, so it has promoted value.

仿真及实验结果表明：由于此数学模型是将神经网络和遗传算法相结合应用在井下的监控系统中，因此即克服了神经网络容易陷入局部最小误差的缺点，又利用了神经网络本身强大的人工智能；该模型不仅为煤矿监控系统管理提供了一种新方法和新思路，同时也为解决不确定性信息处理问题提供了一种新的尝试和手段；该模型学习功能强大，精度较高，实用性强，具有很好的推广价值。

However, there were some defects in the EF model given by Rees W E in 1999, i.e. inaccurate of the productive and equipotent factors, lacking enough consideration for the functions differences of ecological system, and static EF model. A Modified Ecological Footprint Model was proposed according to the problem and deficiency mentioned above.

文章针对Recs W E等提出的生态足迹模型中存在的问题与不足（如：产量因子和当量因子参数选取偏差，生态功能差异表现不充分，模型不具动态性等）提出了改进生态足迹模型。

With experience gained from the Finite Element method, a quasi-linear model based on the Magnetic Equivalent Circuit method has been used to obtain the static torque of the motor. Three types of magnetic tubes are employed in the model, and through the exchange principle of magnetic lines of force and magnetic equipotential line, the tube in which the flux distribution is non-uniform is applied to the model.

通过分析电机二维磁场分布和考虑电机特殊的电磁结构，提出了用三种磁通管单元来近似磁场分布，并借用磁力线和等磁位线互换的方法，将磁力线分布不均匀的磁通管引入到分析模型中，有效的处理了平动式啮合电动机中的磁场分布不均匀和磁路局部饱和，使分析模型得到简化并兼顾了求解精度。

The main problems researched in the dissertation and achievements are as follows: The dissertation explains the science background and the theoretical and actual meaning of the task. The progress and the problems of the flow imaging technique are briefly explained. The advantages of electrical capacitance tomography are discussed. The paper discusses the formation and operating principle of ECT, and builds up the definite mathematical model by detail theoretical analyse, and establishes the Finite Element Model of the system by changing the finite boundary value problem of ECT into equivalence variation problem according to variation principle. On the basis of the FEM of the system, the paper builds the finite element model of the capacitance sensitivity field distribution and programs its finite element simulation software and proves the validity of the FEM of the ECT from different aspects. With the FEM and the qualitative analyse of the effect of each structural parameter of the capacitance transducer on its capability, this paper optimizes the structural parameters of the capacitance transducer, and obviously improves its capability. The compare of the simulated result with the static experimental result shows that the error of them is less than 0.9%.

其主要研究内容包括：阐述课题研究的学术背景及其理论与实际意义，概括总结出流动层析成像技术的发展现状和存在的问题，指出电容层析成像技术的优点；讨论电容层析成像系统的组成及工作原理，进行详尽的理论分析，以变分原理为基础，将ECT的有限元边值问题转换为等价的变分问题，从而建立系统的有限元模型；在系统有限元模型的基础上，建立敏感场的数学模型，编制有限元的仿真软件，并从不同角度证明电容层析成像系统有限元模型的正确性；利用有限元模型，定性地分析电容传感器各结构参数对其性能的影响，并对传感器结构参数进行优化设计，使其性能得到明显的改善。8电极ECT系统的仿真和静态实验结果的比较表明，它们之间的相对误差小于0。

The earliest proposed line element error band theory is "ε-band" model,then "E-band" model was proposed and developed to "G-band" model.

最早提出的线元误差带理论为"ε-带"模型，后来又提出了"E-带"模型和在其基础上发展的"G-带"模型。

The change of observation error was analyzed in the case of stator flux observer ui model at high speed and in model at low speed when the parameters of motor changed based on the mathematical model in the stationary coordinates.

利用静止坐标系下的异步电机数学模型，分析当电机参数改变时，高速运行状态下定子磁链观测器 u i 模型和低速运行状态下 i n 模型的观测误差变化情况，然后给出定子磁链全阶观测器增益矩阵的确定方法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。