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This thesis mostly includes main part models of the second loop system, for example, the steady state model and transient state model of the turbine, the transient state models of the condenser、steam emission system.

本论文的主要内容是:首先,建立二回路系统主要部件的数学模型,包括汽轮机稳态模型和动态模型,凝汽器和排放系统动态模型

The launch test results illustrate that the launch speed of the Teflon cone designed using sheath structure can arrive at 5.7km/s, and the sabot achieves a clean separation from the model at the...

发射试验结果表明:用此方法设计的泰氟隆锥模型和选用超韧尼龙做成八瓣全包覆弹托能实现泰氟隆锥模型的超高速发射,模型的发射速度达到5.7km s,且模型与弹托分离满足再入物理试验研究的要求。

Under this condition, a lot of new influence factors appear, the superficial model of coalbed methane is no longer suitable, so we set up the coalbed methane seepage model considered slip effect and porosity pressure, set up the coalbed methane seepage model considered coupling of slip effect and temperature field, set up the coalbed methane seepage model considered coupling of the slip effect and two phase of water - gas in this paper.

而进入深部开采后出现了许多新的影响因素使得原有的浅部煤层气渗流模型不再适用,因此本文建立了考虑滑脱效应及孔隙压力的煤层气渗流模型,建立了考虑滑脱效应及温度场耦合的煤层气渗流的数学模型,建立了考虑滑脱效应的水气耦合煤层气渗流数学模型

The main contents of the present paper include: 1、The mechanism of fouling accumulation and the effects of fouling and slagging on boiler performance are analyzed. The model of fouling increasing is developed on the basis of sediment rate and denudation rate. The fouling monitoring models for boiler furnace and convective sections based on heat balance, the ones for air heater based on converted pressure difference are given. The implement results show that these models can reveal the cleanliness of boiler heat transfer surface. 2、The disadvantages of the model for boiler furnace fouling and slagging monitoring based on heat balance are discussed, and the calculation of radiant heat flux is considered as the primary difficulty.

主要包括以下内容: 1、分析了锅炉受热面污染形成的机理,从灰污的沉积率和剥蚀率角度出发,推导了受热面灰污增长的基本模型,分析了灰污热阻随积灰时间和烟气流速变化的规律,并通过大量现场试验,得到了沉积常数与时间常数的取值范围; 2、针对炉膛、对流受热面和空气预热器等不同受热面的传热特性,分别建立了基于热平衡和折算压差的污染在线监测模型,经实践验证,其监测结果能够满足现场工程应用的精度要求; 3、分析了基于热平衡原理的辐射、半辐射污染监测模型的不足之处,指出了机理模型因对炉内辐射换热量计算不准确,导致对以辐射换热为主的炉膛和以半辐射半对流的屏式过热器监测效果不够理想。

The single-deck model,stern superstructure model,overall ship model and the simplified overall ship model used for vibration calculation and their applications are introduced respectively.

介绍了用于振动计算的单层甲板模型、尾部上层建筑模型、全船模型和简化全船模型及应用实例。

The empirical results indicate that the method based on neural networks excels the BS model in interpretive capability, error degrees and hedging efficiency. It means that in the Taiwanese warrant market, neural networks with self-evolving genetic algorithms can provide a more accurate and stabler model on pricing and hedging than the BS model.

研究结果显示,类神经网路模型针对台湾已到期之十五档认购权证,不论在评价上之解释能力与误差程度,或在避险效果上均优於BS模型,即表示在台湾认购权证市场中,基因演算法自动演化之类神经网路能提供一个比BS模型更接近市场价格,以及更能替发行者规避暴露风险的模型

We also introduce three solution models including Discrete Model, Self-Consistent Reaction Field Model and Hybrid Method.

我们还介绍了论文中使用的三种溶液模型:离散模型、自洽反应场模型和混和模型

The boundary of analytical model and statistical model is clearly divided in this performance model, and evaluation accuracy is improved. Secondly, based on embedded SRAM performance hybrid model, this article adopts bionics algorithm-ant algorithm to optimize hierarchical embedded SRAM structure. This method which adjusts memory system structure improves memory system performance. Finally, considering the factors such as memory cell area, power, delay and reliability, this article establishes static 6-T memory cell area, power, delay and static noise margin equations, analyzes 6-T memory cell device dimension constraints under "read upset" and "write upset", then proposes a method to enhance embedded SRAM performance by optimizing 6-T memory cell size. In order to realize embedded SRAM design and verify proposed optimization methods, this article takes the Garfield202 system chip as the platform, which embeds A720T processor and 20KB Scratch-Pad memory.

首先针对嵌入式SRAM结构,采用多元线性回归方法分析SRAM宏单元性能指标,采用解析方法分析控制电路延时,结合以上这两种方法建立嵌入式SRAM性能混合模型,该模型清晰划分两种建模方法的各自适用范围,提高了模型精度;其次以该混合模型为基础建立存储体性能目标函数,采用仿生优化算法—蚂蚁算法优化嵌入式SRAM结构,使之达到最优设计;最后综合考虑面积、功耗、速度以及可靠性等因素,建立静态6-T存储单元面积、功耗、延时以及静态噪声容限方程,分析了&读破坏&和&写破坏&的晶体管尺寸约束,优化了6-T存储单元尺寸,提高了嵌入式SRAM性能。

The study results of the thesis imply that the sandwich beam structural model, the viscoplastic model and the time-dependent damage model utilized have high numerical efficiency, and can meet the requirement for the real-time ability, while the model of continuous damage rate developed is potential to on-line application. Additionally, the fuzzy damage-mitigating controller has very well damage-mitigating effect, and may be suitable for on-line applications of service lifetime prediction and damage control for the LRE.

本文研究结果表明,本文所采用的夹芯梁结构模型、粘塑性模型和损伤模型具有较高的数值计算效率,可以满足实时性的要求;连续形式的损伤模型,满足在线应用的要求;设计的模糊损伤控制器能够起到比较好的减损效果,有望应用于实时在线减损控制。

The high order linear space state model has 25 state variables, including six degrees of freedom of rigid fuselage, flap motion of main and tail rotor, non uniform dynamic inflow at rotor plane.

以某型直升机为例,对线性模型与非线性模型的时域动态响应,及 2 5状态高阶线性模型和传统 6自由度 9状态模型的特征值进行了比较,验证了建模方法的可靠性和精度

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推荐网络例句

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面,更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?