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Analysis on the Astringency of a Hybrid-Domain Basis Function Based on Exponential Series Function;2. Research the Corn Production Efficiency of China Based on Malmquist Model and Astringency;3. The background of application of genetic algorithm to reservoir optimal operation and its astringency are introduced.
介绍了遗传算法在水库优化调度中的应用背景及算法的收敛性,讨论了水库优化调度中遗传算法的基本应用步骤以及存在的问题,给出了算法的各种改进方法,并对遗传算法的应用前景进行了展望。
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Based on a series of signal process and noise source identification techniques, especially the major noise source identification methods, such as expurgation method, sound intensity analysis, spectrum analysis vibro-acoustic correlation analysis and so on, the pass-by noise control of SC7080A and SC6360B are studied in detail. By the roadway and dais experiments, the major noise and radiating parts are identified and some economical controlling methods are made. For the SC7080A, to control the emissing noise from the intake and shell vibration of air cleaner, a intake muffler is installed between the air cleaner and intake valve. Based on the theory of Helmholtz resonator, One three-parallel-connected resonant silencer is designed and trial-manufactured. For the SC6360B, the attenuation performance of exhaust muffler in high frequency region is improved. To reduce the vibration noise of shell part, the structure of oil sump tank, exhaust manifold shield and exhaust manifold shield are analyzed and improved. At the same time, some measures, such as sound absorption, sound insulation, are taken to reduce the noise of engine surface emissivity and a sound shield is designed.
本文首先综述了目前国内外汽车加速噪声控制的现状、主要方法和技术措施,在此基础上,结合SC7080A和SC6350B汽车的车外加速噪声水平及现状,综合运用分别运行法、声强法、频谱分析法、声振相干函数法等现代噪声源识别方法,对SC7080A和SC6360B汽车进行了准确详细的车外加速噪声源识别并提出了经济可行的控制方案,针对SC7080A,主要在空气滤清器和进气阀门之间的进气管道上加装进气消声器,抑制空气滤清器壳体表面和进气口两处的噪声辐射,根据Helmholtz共振腔原理设计了三腔并联旁支型共振消声器,并进行了工程化设计和试制;针对SC6360B,主要改善了排气消声器在高频段的消声性能,对罩壳类零件进行了结构改进,降低了其表面噪声的辐射,并对发动机舱进行了吸声、隔声处理,设计了发动机隔声罩。
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The drag force acting on particles by gas phase is calculated based on empirical correlation proposed by Di Felice, and the counter force of particles to gas phase in a gas grid is determined based on PSIC method.
本文对密相流化床内流化过程的模拟较好地复现了气泡在流化床内的形成、分离、移动、长大及破裂的周期性变化以及相邻气泡间的合并和变形过程。
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Up to this time, the major challenge to sign language recognition is how to develop approaches that scale well with increasing vocabulary size In this paper, an approach to large vocabulary, continuous Chinese sign language recognition is presented, which uses subwords instead of whole signs as the basic units Since the number of subwords is limited, HMM based training and recognition of the CSL signal become more tractable and have the potential to recognize enlarged vocabularies Furthermore, the proposed method facilitates the CSL recognition when finger alphabet is blended with gestures About 2400 subwords are defined for CSL One HMM is built for each subword, and then the signs are encoded based on these subwords A decoder that uses tree structured network is presented Clustering of the Gaussians on the state, language model and N best is used to improve the performance of the system Experiments on a 5119 sign vocabulary are carried out, and the correct rate is over 90% for continuous sign recognition
迄今为止,手语识别面临的最大问题是如何解决词汇集易扩充的连续识别提出一种大词汇量连续中国手语识别方法,将词根作为识别基元,由于基元的数目是有限的,因此基于HMM的手语信号的训练和识别变得比较容易处理,可以实现更大词汇量的识别除此之外,所提方法还有利于实现手势语和手指语的混合识别从中国手语中共整理出2 4 0 0多个词根,为每个词根建一个并行的HMM模型,对各数据流的HMM模型进行聚类,确定出手语识别的基元根据这些基元对手势词编码,并建立了树状搜索网格,使用状态结点上高斯密度函数聚类、语言模型和N Best方法提高系统的速度和精度对 5 119个手语词做了实验,连续语句的识别率可在 90 %以上
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based on the introduction of the merit and shortcoming and the analysis of the generate methods of the main random sequences,we propose a new method which is based on the substitution and recurrence structure,and the method is implemented by fpga.the generated sequences by this method not only can pass the test of the fips 140-2 standard,but also have high performance:long period,high linear complexity,good correlation function value and high generation speed,it can be used widely in information security system and so on.
摘 要:在介绍了现有随机序列的优缺点以及分析随机序列主要产生方法的基础上,提出了一种基于循环替换原理的伪随机序列产生方法,并用fpga加以实现。该方法产生的伪随机序列完全符合fips140-2标准,并具有周期长、线性复杂度高、相关性好以及产生时间短的特性,能广泛应用于信息安全等系统中。
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We presents an accurate F method based on corresponding point adjustment.The method adjusts coresponding points according to the fixedness of projective transformed cross ratio,then calculates F matrix accurately through linear and non-linear methods. When computing intrinsic parameter,A matrix,we simplify the step,and stress on the two important parameters of A.The result will be getten through solving Kruppa equation based on SVD decomposition.In order to compute extrinsic parameters,we use linear method to get initial R and t,then apply non-linear method to accurate them.
提出了基于匹配点调整的F求精方法,先根据摄影交比不见性对手工选择的匹配点进行调整,再用线性、非线性结合的方法求精F矩阵;在计算内部参数A中,进行了一定的简化,把重心放在A中重要的两个参数上,用SVD分解法计算Kruppa方程;在计算外部参数时,首先用线性法求解R、t,然后再用非线性法迭代求精。
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In the self - calibration scheme , the thesis emphasizes the accuracy of camera intrinsic and extrinsic parameters . we presents an accurate f method based on corresponding point adjustment . the method adjusts coresponding points according to the fixedness of projective transformed cross ratio , then calculates f matrix accurately through linear and non - linear methods . when computing intrinsic parameter , a matrix , we simplify the step , and stress on the two important parameters of a . the result will be getten through solving kruppa equation based on svd decomposition . in order to compute extrinsic parameters , we use linear method to get initial r and t , then apply non - linear method to accurate them
提出了基于匹配点调整的f求精方法,先根据摄影交比不见性对手工选择的匹配点进行调整,再用线性、非线性结合的方法求精f矩阵;在计算内部参数a中,进行了一定的简化,把重心放在a中重要的两个参数上,用svd分解法计算kruppa方程;在计算外部参数时,首先用线性法求解r、 t ,然后再用非线性法迭代求精。
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One of these methods is based on self-tuned scaling factors fuzzy controller; the others are based on CMAC. The controllers designed by all these methods have the ability of on-line auto tuning or self-learning, so the under-determined friction could be compensated.
这三种方法都具备在线自调节能力或自学习能力,从而大大减小了系统中出现的不确定性摩擦对系统性能的不利影响。
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Based on the "Structural Holes" theory and the concept of "Bridge",combined with the characteristics of the sharing, divide the "Bridge" into five types. Discuss the role of the five types in sharing; Based on the results of the UCINET analysis, express the coordination role of coordinator, and give a optimization way of the inside network; Divide the broker into two types, and make a description of the two types' function in details; Integrate the discussion of gate keeper and representative, and descript the different function of them on the same system; Descript the function of the Simmel model,and illustrate the bad effect of the model and give measures to avoid that.
在简述"结构洞"理论和"桥"的概念的基础上,结合科技资源共享的特点,把"桥"划分为5种类型;对不同类型"桥"在共享中的作用进行论述;基于UCINET分析结果说明协调者的协调作用,并提出内部人际网络优化方法;对中介者进行再次分类,并详述两种模式在科技资源共享中的功能实现;将守门人与发言人综合论述,描述在同一个体系下实现两者不同作用;对齐美尔连带的作用进行论述,对其可能产生的负面影响进行说明并给出相应的避免措施。
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The Article based on structural reliability theory and connected to the optimization model based on geometric meaning of reliability index, the study on the anti-slide stability of gravity dams is carried out RAGA.
文章以可靠度理论为基础,以基于可靠指标几何涵义的而建立的优化模型为联系,以基于实数编码的加速遗传算法为手段进行重力坝的抗滑稳定分析。
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- 推荐网络例句
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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.
Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。
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I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.
我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。
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The shamrock is the symbol of Ireland and of St.
三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。