查询词典 method of work
- 与 method of work 相关的网络例句 [注:此内容来源于网络,仅供参考]
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This method is independent from flow data, having fast rendering rate and high contrast output image. The parameters have obvious physical meaning, and different vision effect visualization output results are derived from different parameters combination. This method can take full advantage of the graphic card accelerator, and has successful application in the dynamic visualization of the flow data in crystal growth experiment during task research work.
该方法具有独立于流场数据、绘制速度快、生成图像对比度高的特点,参数物理意义明显,不同参数选择可得到不同视觉效果的可视化输出结果,能够充分利用现有硬件图形显示加速设备,已经被成功应用于空间晶体生长实验流场数据的可视化,获得了较好的效果。
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The main work and the originality points of this dissertation could be concluded as the following parts:(1) To analyze systematically the mathematical model of LES of air flow in great space, under the case of isothermal and non-isothermal, as well as the combined action of buoyancy and strain. Some basic problems are studied about the LES application into airflow simulation of great space, such as boundary conditions, spatial difference scheme and time advancing scheme, time step etc., which creates the basis for the LES application to indoor airflow simulation.(2) Both the instantaneous and time averaged flow field of great space with multiple jets under isothermal and non-isothermal cases are explored with large eddy simulation method, and also discussed the dynamic characteristics and the law of fluidflow in the great space.(3) Based on the results of LES of the great space and the Fanger thermal comfort indexes, it is brought forward the concept of the series of dynamic thermal comfort evaluating indexes, which could be divided into thermal comfort index with time averaged properties PD, PPD, PMV, thermal comfort index with instantaneous properties IPD, IPPD, IPMV, and time averaged thermal comfort indexes TAPD, TAPPD, TAPMV, and transient situations time averaged thermal comfort indexes TTAPD, TTAPPD, TTAPMV. The differences among them and the calculation methods are discussed, and the four kinds of indexes are calculated with the thermal comfort index PD as an example.(4) Based on the LES results it is discussed the hot air stratification phenomena in air-conditioned buildings in the case with air supply and return registers on the ceiling and the case on the sidewall. The fundamentals of the hot air stratification are studied and the relations of estimating hot air stratification are brought forward.(5) With the advanced apparatus such as hot wire film anemometer IFA300 and laser particle field anemoscope, corresponding model test and site measurements have been done, which are compared with the simulation results and LES is proved a very promising method in air flow simulation indoor.
本文主要工作既创新点体现在以下几个方面:(1)系统分析了等温、非等温和考虑剪切力与浮升力综合作用的高大空间大涡模拟数学模型,并研究了高大空间大涡模拟在室内气流仿真应用中的一些基本问题,如边界条件、空间离散格式和时间推进格式、时间步长选择等问题,为大涡模拟在室内气流计算中的广泛应用打下了基础;(2)首次用大涡模拟方法研究了高雷诺数下高大空间多射流在等温、非等温情况下的瞬时流场和时均流场分布,并探讨了多射流流场的动态特性和流动规律;(3)基于大涡模拟的动态仿真结果和Fanger的热舒适指标,首次系统地提出了动态热舒适评价指标体系的概念:即基于时间平均参数的热舒适指标PD、PPD、PMV;基于瞬时参数的瞬时热指标IPD、IPPD、IPMV;基于时间平均热舒适指标TAPD、TAPPD、TAPMV;以及沿行动迹线的时间平均热舒适指标TTAPD、TTAPPD、TTAPMV,并分析了四类热舒适指标的差异性和计算方法,还以PD值为例对四类指标分别进行了计算;(4)基于数十种工况下空调房间大涡模拟的结果,研究了空调建筑上送上回和侧送侧回两种情况下热分层现象,并探讨了热分层的基本规律,首次提出了避免热分层现象的判断公式;(5)在暖通空调领域,首次使用IFA300热线风速仪、激光粒子速度场仪等先进设备,完成了与大涡模拟相对应的模型试验,并把实测结果与仿真结果进行了对比,说明LES在室内气流仿真方面是一种很有前景的方法。
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We firstly summarize the NN system modeling methods and the popular optimization algorithms, and point out the deficiencies, the limitation of noise cancellation modeling and the need of human intelligence participation, in our former optimization work after analysis. An abstract problem is extracted. It is to find out control variant that makes system output optimized using the data comprising a sample set with N x samples and their corresponding y, and it does not explore given system and achieves full automatic computation procedure. Next we propose a multi-variant controlled system optimization method utilizing CASSANDRA-I small type neural computer and program its application software. Moreover systematic experiments are made to demonstrate the method's validity, ability of noisy samples disposal and practical application.
我们总结了神经网络系统建模方法以及得到广泛采用的优化算法,并分析指出我们前阶段的优化工作中存在的去噪声建模有局限性和计算过程需人干预的不足,在此基础上把问题抽象为:已从系统获得含N个控制量样本的样本集S以及每个样本对应的系统输出,如何依据这些数据求出一个使系统输出y得到优化的控制量x,而不研究具体系统,实现不需要人智能参与自动完成的计算过程;提出应用人工神经网络硬件系统——CASSANDRA-I小型神经计算机的多变量控制系统优化方法,设计完成了其应用软件;并进行系统的实验工作,验证算法的有效性以及此方法处理带噪声样本和实际应用能力。
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ABSTRACT Sublevel caving method is a high efficiency mining method for underground mine, it has many advantages, such as a simple mine stope, good work condition, high mechanization and low mining cost. Up to now, this method has been used in more than 85 percent of all underground iron mine.
无底柱分段崩落法是一种高效率的采矿方法,具有采场结构简单,作业条件好,机械化程度高,回采强度大,采矿成本低等优点,迄今应用该采矿方法采出的矿石量约占我国地下铁矿采出矿石总量的85%。
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We deeply understood the work method with 8259A in this topic, work principle and work condition;Knew to break off existent important meaning in the meantime, break off the popular comprehension can think to be a "abnormality", under the sistuation that have excrescent occurrence output circumstance, at two procedures which put in the at present thing to win election to choose to even need to immediately carry out to respond to, is in the interruption say of have the initiative class.
在本课题中我们深刻的了解到了8259A的工作方式,工作原理和工作状况;同时知道了中断存在的重要意义,中断通俗的理解可以认为是&异常&,在有异常发生的情况下产生的情况,在两件摆在眼前的事物中选择更需要立刻执行响应的程序,即是在中断中所说的优先级。
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The article analyzed the whole work from the viewpoint of pitch structure, and point out the basic pitch structure was a nucleus serial, and the basic method to form the work was partitions of the nucleus serial. It showed the work logic relationship from kernel to extension, from part to whole, and from harmony to the integral structure.
文章从音高结构的角度来审视和分析全曲,指出了构成作品的基本音高组织是&核心序列&;构成作品的基本方式是&核心序列&的&分割&,从而揭示了这首作品从内核到外延,从局部到整体,从和声到整体结构的逻辑关系。
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The primary work and remarks of the paper are as follows:(1) Stress intensity factors of gun barrel under inner pressure are obtained by finite element method. The accuracy of displacement method and stress method are compared. Some patterns of dynamic stress intensity factor are studied.
论文所做的主要工作和研究成果如下:(1)通过有限元方法计算了身管在内压作用下的应力强度因子,比较了位移法和应力法的精度,并且研究了动态应力强度因子的规律性。
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In order to meet the requirements of the needs of the times, the author, after so many years' practical work, has probed into a creative method to college students' ideological and political education in terms of the innovation of the college students' ideological and political education creating comparative educational method, using the transposition thinking method, expanding the activity vectors, conducting soul communication and emotional inspiration.
为了使大学生思想政治教育工作适应时代发展要求,就大学生思想政治教育工作创新问题,笔者经过多年的工作实践,探索出了一条大学生思想政治教育&创设比较教育法、运用换位思考法、拓展活动载体法、利导心灵交流法、引导情感激励法&的创新方法,既具有明显的教育效果,又富有人性化。
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The paper first proposes"history and on-line memory based on frame"adaptive modification method on roll-gap set value for model set of the gauge control system because of the uncertainty of the switch between two kinds of position closed-loop work state in practice. The method is affirmed to be good by a lot of locale true data and provides a theory method for research on self-study by which parameters can be set by form.
厚控系统模型设定中,针对实际系统运行时两种位置闭环工作状态切换的不确定性,对辊缝设定值首次提出了&基于框架历史实测存贮修正&的自适应修正方法,经大量现场实测数据推演证实了该方法的有效性,为采用以表格方式进行参数设定与自学习研究提供了一种理论方法。
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In some cases, the degeneracies of infinite equilibria are so high that the common methods including the blowing-up method (which decomposes a complicated equilibrium into several simple ones with the Briot-Bouquet\'s transformation), the Z-sector method and the normal sector method do not work.
在某些情形,我们发现:当无穷远奇点具有较高退化性时,常用的blowing-up(应用Briot-Bouquet变换将一个复杂奇点打散成几个简单奇点)方法、Z-扇区方法(来源:A97BC论文网www.abclunwen.com)和正常区域的办法都不方便甚至不能使用。
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。