查询词典 model theory

Based on the theory of Boolean model, this article designed and realized an Information Retrieval system.

在布尔模型的理论基础上设计并实现了一个信息检索系统，本文对系统的概要设计、详细设计步骤都做出详细地介绍，并且对系统的主要代码进行了说明。

According to the theory of first-order Born approximation,a Fourier Domain Optical Coherence Tomography model of single scattering infinite narrow beam is established,and the reason why it is hard to obtain the exact solution of integrated scattering equation is analyzed.

选择多层介质作为样品，根据波恩一阶近似理论建立了单次散射的无限细直光束频域OCT模型，并分析了散射积分方程很难得到精确解的原因。

This paper takes the cylindrical boult of the 40 flour mills as the object of study,establishes the corresponding mechanics model ,connects theory to reality,designs the nut conicity,then uses the same conicity offsetting poor alignment between the nut and the cylindrical boult,decomposes reinforcingsteel radia.

以40型面粉机圆筒筛为研究对象，建立相应的力学模型，通过理论结合实际，设计螺母锥度，在螺母与圆筒筛之间采用同锥度错位配合，将钢筋的径向受力通过锥面分解到钢筋轴向一部分，使得钢筋在轴向和径向都保持尽可能小地受力。

Based on an actuator failure model with continuous gain,the consistency theory and condition between regional pole index and H∞ index are given by using the bounded real lemma and linear matrix inequality,and the ranges of consistent indices are analyzed.

基于连续型执行器故障模式，利用有界实引理和线性矩阵不等式，给出了区域极点指标与H∞指标约束相容性理论及条件，并且分析了区域极点指标相容的H∞指标的取值范围。

The evolutionary game theory based on bounded rationality was used to set up an unsymmetrical replicator dynamics model for copetition relationship among the manufacturers on the cluster supply chains.

提出运用以有限理性为基础的演化博弈理论，建立和分析一个集群供应链的制造商之间竞合关系的非对称复制动态模型。

And then based on the theory of the interaction of acoustic wave and optic wave, the Raman-Nath and Bragg diffraction are introduced in detail, of which theoretical model is given.

紧接着从声光调制的原理入手，详细的介绍了拉曼-纳斯衍射和布拉格衍射这两种基本的声光作用并给出其理论模型。

On the basis of the constitution and work principle of general drum brake and the theory of heat transfer and finite element method, the process of heat's creating and dissipating is analyzed detailed, and the mathematics model of temperature rising calculation is built.

本文在对目前常用的鼓式制动器结构和工作原理进行分析的基础上，从传热学的基本理论出发，研究了鼓式制动器的生热、散热过程，并应用有限单元法建立了制动鼓温升过程的理论计算模型。

SIR model can be studied using the theory of branching process.

概述了用复杂网络的理论来研究两个传染病模型，即SIR模型和SIS模型，以及在这两个模型中如何计算疾病的传播阈值。

Guided by plate tectonic theory and combined with the analysis of the metallogenetic geotectonic setting, geological and geochemistry characteristics, genesis and brecciation mechanism in Shuangwang gold deposit s in China,this paper established location model of ore-fluidic fracture.

以板块理论为指导，论文对双王金矿床产出的构造背景、矿床地质地球化学特征、矿床成因、角砾岩形成机制进行了研究，建立了矿床的矿液致裂构造定位模式，并结合成矿模式及地质、地球物理、地球化学找矿标志对已知矿体的深边部及外围进行了成矿预测研究。

The method and step of building the brittle model were brought forward based on the chart theory.

提出了基于图论理论的系统脆性模型建立的方法和步骤。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失