查询词典 prediction theory

Compared with the approximate calculation method, the results show that the average prediction accuracy of the method based on the thermodynamic theory can be improved by 0.044nm.

用改进后的方法对12个蛋白质进行了测试，预测结构相对于天然结构的均方根偏差在0.4～0.6 nm之间。

Based on the Miedema′s theory of electric charge shift,a modification of Mo-reen′s model of prediction of the lattice parameters in solid solution was approachedfrom the idea of the atomic size and separation in solid solution changing withsolute concentration.

根据Miedema电荷迁移理论，引入固溶体中原子尺寸和间距随溶质浓度改变的观念，修正了Moreen的固溶体品格常数预测模型。

Based on theory of simple harmonic oscillation in physics,this paper presents a novel model for production decline prediction given by deformation of critical damping oscillation equation which is predigest.

基于物理学中的简谐振动原理，提出了把阻尼振动方程中的临界阻尼振动方程变形得到一种新的产量递减模型，可简化为Arps指数递减形式，经实例计算，可以用来预测油田产量，以此指导油田开发和管理。

Based on theory of simple harmonic oscillation in physics, this paper presents a novel model for production decline prediction given by deformation of critical damping oscillation equation which is predigested to Arps exponential decline form.

基于物理学中的简谐振动原理，提出了把阻尼振动方程中的临界阻尼振动方程变形得到一种新的产量递减模型，可简化为Arps指数递减形式，经实例计算，可以用来预测油田产量，以此指导油田开发和管理。

To make occurrence degree prediction, single factor regression algorithms, stepwise regression algorithms, discriminatory analysis, Markovian model, fuzzy mathematics theory and Back propagation neural network algorithms are studied and models are builded.

将筛选出的主要气象因子作为预测因子，分别用单因子回归预测法、逐步回归预测法、判别分析预测法、马尔柯夫链预测法、模糊数学预测法与神经网络预测法建立了关中地区小麦吸浆虫的发生程度的预测模型。

On the basis of theory analysis its status and existing problems and cause formation of high-skilled talents in Changqing Oilfield are dissected by data and comparison, indicating that there exist several problems like total amount lack, proportion unbalance, apparent framework contradiction and severe prediction of persons' luck in a given year, and then pointing out that the cause formation is difference between knowledge and concept, disseverance of personnel manage system, limitation of distribution stimulation, deficient training input and un-adapted training pattern and singular channel of high-skilled talents in Changqing Oilfield.

在理论分析的基础上，通过数据分析、对比分析对XX油田高技能人才的现状、存在问题及其成因进行了剖析，指出XX油田高技能人才存在总量短缺、比例失衡、结构性矛盾突出、流失较为严重等问题，并分析指出成因主要是：认识和理念上的差异、人事管理制度的割裂、分配激励的缺陷、培训投入不足和培训模式的不适应、高技能人才补充渠道单一等。

This article, based on Marxist Double Negation theory, offers a clear statement on the network communication"s role in the history of communication and its unique nature as a new communication method together with author"s prediction on its evolution direction in future.

本文运用马克思主义唯物辩证法的否定之否定规律，分析研究了网络传播在人类传播史上的特殊地位和意义，揭示了网络传播作为一种前所未有的传播形态所独具的特性，大胆预测了网络传播在未来的发展走向和演变趋势。

Not only the shortcoming that the smoothing constant and order of the model are not changed for the exponential smoothing model during the process of prediction has been overcome, but also the theory of threshold model has been further developed.

这不但克服了指数修匀模式在预报过程中修匀常数和模式形式一直不变的缺陷，也进一步发展了门限模式的理论。

Based on the review of traditional prediction methods,the paper forward a system composed of grey theory and neural network theory,and an ameliorative method on its function is studied.

在分析考察传统预测分析方法的基础上，本文提出了一个由灰色理论和神经网络理论组合的预测系统，并针对系统性能的改善和提高进行了深入的研究。

It not only helps furthering our understanding of the mechanism of pre-splitting blasting, but also proposes an effective method for blasting theory and engineering design. Based on a vast amount of blasting vibration data, the paper selects blasting vibration effect parameters using fuzzy theory, and establishes a prediction model of fuzzy neural network of peak particle acceleration.

在分析研究大量现场生产试验爆破振动数据的基础上，提出了一种应用模糊理论优选爆破振动影响参数的方法，并建立了爆破振动峰值模糊神经网络预测模型，对大冶铁矿生产爆破振动进行了预测，平均误差为5.58％，为爆破振动峰值预报提供了一种新的方法。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。