查询词典 models

Polychotomously scored system is better than dichotom-ously scored system,because it makes fuller use of theinformation involved in the examinees response vectorto all test items.2,The assumpt on of dichotomizing polychotomously scoredtest data and the relevant test transferring method isreasonable,the two tests are equivalent.3,Dichotomously scored IRT models are avalable to polych-otomously scored tests if these tests satisfy the assump-tions of the models.

对测验项目采用多级评分有助于更大限度地利用被试对测验项目的反应中所包含的有关其相应的能力或特质水平的信息量。2：本文所提出的把多级评分测验结果二级化的设想和方法是合理的和可行的。3：有本文所提供的方法把多级评分测验转换成相应的虚拟二级评分测验并不会改变原测验的各种性质。这两个测验基本上是等价的。4：只要原多级评分测验满足IRT模型的各种假设，那么该测验所对应的虚拟测验与逻辑斯蒂模型是配匹的。5：把二级评分IRT模型用于多级评分测验是可行的。

Many specialized and decision-making models exist in the Erhai Lake digitalizing management information system, in that the spatial analysis models and algorithm are the foundation.

在数字湖泊系统中存在着大量的专业模型建立和决策分析问题，而空间分析模型和算法是开展上述工作的基础。

Find out if there are any floor models or discontinued models from last year.

如果有任何地板模型或从去年的被中断的模型发现。

Methods and Results— We investigated the expression of PDE1 in explanted lungs from idiopathic PAH patients and animal models of PAH and undertook therapeutic intervention studies in the animal models.

方法与结果—我们研究了来自原发性PAH病人和PAH动物模型分离的肺脏中PDE1的表达情况，并且在动物模型中进行了治疗性干预研究。

Methods and Results— We inestigated the expression of PDE1 in explanted lungs from idiopathic PAH patients and animal models of PAH and undertook therapeutic interention studies in the animal models.

方法与结果—我们研究了来自原发性PAH病人和PAH动物模型分离的肺脏中PDE1的表达情况，并且在动物模型中进行了治疗性干预研究。

The key technology for reconstructing the simulation models based on Petri net into HLA federates is discussed in order to explore developing the environment of integrating the simulation models based on PetriNet into HLA federation.

探讨了Petri网仿真模型改造为HLA成员的关键技术，为后续开发HLA环境下的Petri网仿真模型集成环境进行了初步的探索工作。

this paper makes the gas remote monitor network as background to do some research on the qos guarantee of the network.qos is a synthesis guide line which can be used to estimate the degree to satisfy with some server,which is a technology to solve the problem of delay and congestion in network.it must integrate multi-qos mechanism to get good qos guarantee in the practical application.three qos models in the ip net application and homologized affective factors are demonstrated.meanwhile,the field of qos protection strategy arrangement in shaanxi coal mine gas network has been picked up as the example.for this situation,the comparison to the different qos models is doing strictly.by combining the tcp congestion control arithmetic with ip congestion control arithmetic,the paper also emphatically describes the corresponded arithmetic model for that.stimulatingly,it is promoted the qos characteristic over-area effectively,which it is based on the original single congestion control.

摘 要：以陕西煤矿瓦斯监测远程联网为背景，研究其联网网络的qos保障策略实现。由于现有的各种qos实现机制无法单独为陕西煤矿瓦斯监测联网网络的qos提供保障，因此在实际应用中必须结合多种机制才能得到较好的qos保障效果。比较了传统ip网络的qos结构体系，通过分析intserv和diffserv两种模型的基本原理、工作方式，并指出其各自的优缺点和网络应用环境，设计了将rsvp协议与diffserv模型相结合来满足瓦斯监测数据传输实时性的要求；针对陕西煤矿瓦斯联网的特性，提出了将tcp拥塞控制算法与ip层拥塞控制算法相结合的算法模型，并且该模型的应用可以在原有单一拥塞控制的基础上有效地提升跨地区网络的qos特性。

this paper makes the gas remote monitor network as background to do some research on the qos guarantee of the network.qos is a synthesis guide line which can be used to estimate the degree to satisfy with some server,which is a technology to solve the problem of delay and congestion in network.it must integrate multi-qos mechanism to get good qos guarantee in the practical application.three qos models in the ip net application and homologized affective factors are demonstrated.meanwhile,the field of qos protection strategy arrangement in shaanxi coal mine gas network has been picked up as the example.for this situation,the comparison to the different qos models is doing strictly.by combining the tcp congestion control arithmetic with ip congestion control arithmetic,the paper also emphatically describes the corresponded arithmetic model for that.stimulatingly,it is promoted the qos characteristic over-area effectively,which it is based on the original single congestion control.

摘 要：以陕西煤矿瓦斯监测远程联网为背景，研究其联网网络的qos保障策略实现。由于现有的各种qos实现机制无法单独为陕西煤矿瓦斯监测联网网络的qos提供保障，因此在实际应用中必须结合多种机制才能得到较好的qos保障效果。比较了传统ip网络的qos结构体系，通过分析intserv和diffserv两种模型的基本原理、工作方式，并指出其各自的优缺点和网络应用环境，设计了将rsvp协议与diffserv模型相结合来满足瓦斯监测数据传输实时性的要求；针对陕西煤矿瓦斯联网的特性，提出了将tcp拥塞控制算法与ip层拥塞控制算法相结合的算法模型，并且该模型的应用可以在原有单一拥塞控制的基础上有效地提升跨地区网络的qos特性。关键词：服务质量；综合服务模型；区分服务模型；拥塞控制

After rabbit models with emphysema were established,the abdominal cavity of these models were gradually insufflated with CO 2 and main...

兔肺气肿模型稳定后，施加CO2 气腹，压力为 1 0mmHg(1mmHg =0 。1 33kPa)和 1 5mmHg两种，作用时间 2h。

However, the present conventional power flow models cannot reflect the important features of islanded operation and the obtained power flow distribution from these models does not conform to practical operating condition.

然而，目前常规的潮流模型无法反映孤网运行的重要特征，得出的潮流分布与实际运行情况不符。

Now she was hungry and angry.She began to smoulder.

现在她又饿又气，她开始流露难以抑制的怒火。

You have placed our iniquities before You, Our secret sins in the light of Your presence.

诗90：8 你将我们的罪孽摆在你面前、将我们的隐恶摆在你面光之中。