模型
- 与 模型 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Cutting discontinuities's 3-D model could get cutaway view and date directly on AutoCAD plat, it will be good for research instability clastic mass. The author select rock mass from damsite in Laxiwa hydroelectric station as object to which information processing system on rock mass structure is applied.
通过结构面的数学建模,使采集所得结构面数据的处理实现了信息化,程序化,应用多功能数据库在计算机上人机交互划分岩体结构,初步实现岩体结构的信息化,并且通过结构面与相关实体的真三维实体模型的建立,既可清晰直观的展示结构面模型的空间形象,又可容易的切割模型并获取切图的数据,对不稳定块体的分析研究提供了强有力的辅助手段。
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B. Discussed how to create the evidence model in the theory of multi-information fusion, proposed an approach to creating the evidence model by using statistical data in order to solve the problem which is difficult to get a priori probability in advance.
研究了多信息融合理论中证据模型的建立问题,并提出了一种利用统计数据建立证据模型的方法,以解决因无法得到先验概率时证据模型的建立问题。C。
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In chapter three,we have derived a generalized dual London equation for the Abelian "electric" field A_μfrom the effective dual Abelian-Higgs model.The approximative result and the numerical simulation result as well as their figs were shown via solving the dual Abelian-Higgs model with different methods.Hereby the vortex solution of the chromo-electric field and the vortex energy density were also discussed.Finally,we have studied the dual Abelian-Higgs model with additional vacuum constant,and have unpuzzled the vacuum constant corresponding to the bag model.When the quark sources is introduced, the vacuum constant in the MIT bag model is proportional to the quartic of the monopole mass.
利用不同方法求解该方程,给出了该方程的近似结果和数值模拟结果,并分别对两种情形画出图像作了比较,据此还讨论了色电场的涡旋解及能量密度,最后讨论了含有附加真空常数的对偶阿贝尔-黑格斯模型并对应口袋模型给出了附加真空常数的物理解释,引入夸克源之后还预言麻省口袋模型中的真空常数正比于单极质量的四次方。
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At the same time, pattern recognition has been used for abstracting characteristics、predicting the life and evaluating the properties of engine. This research contributes toward global diagnosis for the diesel engine in eight ways.(1) Put forward"the Arithmetic of distinguish the period automatically using auto-correlation method";(2) Separate the waves of continuous knocks using WV distribution;(3) Propose"the logarithmic spectrum approximate method"to analysis the response of the knock between the steel and steel;(4) Discuss the relationship between the time-frequency distribution and timescale distribution in detail, and give the principle of classification;(5) Use the wavelet method to analysis the pressure signal of exhaust、suction;(6) Use the shape of vibration signal to analyse the working situation of cylinder;(7) Use the pattern recognition to select the good samples and abstract the effective characteristics;(8) Develop the model of total properties evaluation and life prediction.
本文在广泛的、深入研究的基础上,应用多种信号处理手段来分析处理数据,同时利用模式识别方法对故障的特征提取、寿命预测以及性能评价作了探讨,本文进行了以下几项工作:(1)提出了基于自相关自动周期识别算法的柴油机振动信号预处理策略;(2)提出了基于WVD分布的连续撞击响应信号的分离策略;(3)提出了基于对数谱拟合方法的钢—钢撞击响应求解模型;(4)提出了基于波形分析的非正常燃烧振动信号的诊断模型;(5)提出了基于小波细节信息的进气压力信号和曲轴箱压力信号的诊断模型;(6)提出了基于小波近似的喷油正时信号中燃烧位置的自动定位;(7)提出了基于统计模式识别方法的故障诊断知识的自学习与自组织策略;(8)提出了基于特征压缩思想的柴油机总体性能评价及寿命预测模型。
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The larger the weight of an attribute was, the more it would make the contribution to classification. on the contrary, it would reduce the effect of classification. the new classification algorithm and the cloud classifier were applied to classify the radiance profiles as cumulonimbus, cirrus clouds, or cirrostratus clouds.
采用云模型建立训练集的各属性模型,分类模型由属性模型集成得到,属性权重根据svm权重向量得到,属性权重越大,其对分类的贡献越大;反之,越小。
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Secondly, it aimed the research on model and method of railway large-sized passenger terminals emergency capability assessment. It designed the emergency capability assessment index system including the MECE principle during the design. After in-deep studied the hierarchy entropy analysis method to dealing with the weight, it calculated the weights of the emergency capability assessment indexes. And it studied the risk assessment model based on the set-valued statistics and fuzzy comprehensive evaluation model, proposed the emergency capability assessment model based on the risk. During the research on the fuzzy comprehensive evaluation model, the paper improved the circular distribution subordinate function to calculate the index membership.
其次,对铁路大型客运枢纽站突发事件应急能力评价的模型和方法进行了研究,建立了应急能力评价指标体系,提出了MECE评价指标设计原则;深入研究了确定指标权重的层次熵分析法,并计算出了铁路大型客运枢纽站突发事件应急能力评价指标权重;构建了集集值统计风险评价模型和模糊综合评价模型于一体的风险应急能力评价模型,并在模糊综合评价研究中,改进了确定单指标隶属度的圆形分布隶属函数法。
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The influences of modeling theory, source of parameters and a posteriori simulation on validity of models are researched and an evaluation method of model validity based on the three factors is proposed, and the significance of performing dynamic evaluation of model validity is analyzed.
分析了模型的建模理论、参数的来源及后验仿真对模型有效性的影响,提出了基于这3方面因素的模型有效性评估方法,并分析了对模型有效性进行动态评估的重要性。
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In this thesis, Water Solubility, 1-Octanol/water Partition Coefficient, molecular Total Surface Area, Aqueous Activity Coefficient, Henry Law's Constant and gas chromatogram relative retention times for biphenyl and its 209 chlorinated congeners were studies with holographic QSAR techniques and highly predictive QSAR models were developed. An internal validation (cross-validation) and external validation were performed to evaluate the predictivity and robustness of the HQSAR models. Based on these highly predictive QSARs, the corresponding data of 5 properties of all these pollutants were presented.
应用简化的响应曲面分析来建立显著的预测模型,必须要考虑到空间立体因素的影响;基于分子模拟技术的三维QSAR技术能够建立显著的预测模型,并且有利于对毒性机理的理解;而基于分子全息的QSAR技术建立了具有高度预测能力的QSAR模型,组内交叉验证和组外预测等方法证明模型具有高度的预测能力和稳健性,可以对硝基芳烃这一类分子结构、体内代谢过程和致毒机理都很复杂的污染物进行定量预测。
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Dioxins re-generation model in zone after combustion is established on the foundations of high temperature homologous model, low temperature catalytic models (Langmuir- Hinshelwood model and Eley- Rideal model) and de novo synthesis.
建立了基于二的高温气相模型、低温催化模型(Langmuir-Hinshelwood和Eley-Rideal)和低温从头合成模型基础上的炉膛出口烟气中二再生成模型。
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Based on the framework of the Alife evolutionary model, we proposed two different models according to Lamarck direct evolution and Baldwin effect. They are called genetic controlled evolutionary reinforced model and autonomous genetic reinforced model, both of which embodied in the mutual effect of learning and evolution.
在基于遗传算法的人工生命进化模型的结构框架下,分别依据Lamarck直接遗传方式和Baldwin效应间接遗传方式两种不同的遗传行为方式,设计了遗传监视进化强化模型和自律遗传强化模型两种不同风格的进化模型,它们都有效地体现了学习和进化之间的双向作用关系。
- 推荐网络例句
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I'm gonna go pack my regular, long bathing suit.
我要去打包我那不起眼的超长泳裤
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Random number generators are used in many areas, with the improvement of the computational ability of the computer.
随着计算机计算能力的不断提高,随机数发生器在许多领域有了更加广泛的应用。
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This would be a great opportunity to discuss once and for all why some nations play around with their player ages.
这倒是一个很好的机会去讨论一下为什么有些国家在他们球员的年龄上玩花样。