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Search Results: 1 - 10 of 330630 matches for " 张建辉 "
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本科教学中的诊断式教学法
The Diagnostic Teaching Method in Education of University Students
 [PDF]

,,
Creative Education Studies (CES) , 2015, DOI: 10.12677/CES.2015.32007
Abstract:
论文首先阐述了诊断式教学法的内容和实施过程;然后以《微波技术与天线》课程教学为例给出了教学的实施效果;最后就教学中应把握的几个问题进行了说明。该教学法对于充分调动本科生的主观能动性,激发他们的创造性思维的潜能,提高学术和科研能力具有积极的推动作用。
In this paper, the content and execution procedure of proposed diagnostic teaching method were presented. Then the method was applied in teaching of the course of “microwave technique and antennas”, achieving a good effect. Finally, some relevant questions worthy of consideration were discussed aiming at features of university students. It was shown that this teaching method can greatly motivate the subjective students’ activity and enlighten their creative thinking potential, and also their ability in the academic and scientific research can be improved obviously by this education method.
基于BP神经网络和RBF神经网络的期权定价
Option Pricing with BP Neural Network and RBF Neural Network
 [PDF]

,,
Statistics and Applications (SA) , 2013, DOI: 10.12677/SA.2013.24018
Abstract:
建立BP神经网络模型和两种径向基函数(RBF)神经网络模型,对以花旗集团为标的股票的看涨和看跌期权进行了模拟定价,并利用四项误差指标比较三种模型和B-S公式的定价预测能力。结果表明,在四种模型中,神经网络模型对期权的定价结果优于B-S模型;而在三种神经网络模型中,基于K-均值聚类算法和伪逆法的径向基函数神经网络对看涨期权的预测精度最高。
A BP neural network model and two radial basis function (RBF) neural network models are established to price the call and put options whose underlying stock is the Citigroup (Citigroup Inc.), and the predictive abilities of the three models with those of the B-S formula by four error evaluation criteria are compared. Our results demonstrate that the neural network models are better than the B-S option pricing model, while the predictive accuracy of the RBF network based on the K-means clustering algorithm and the pseudo- inverse technique is the highest in pricing the call options.
薄膜单元和六面体单元的耦合计算模型

力学与实践 , 1993, DOI: 10.6052/1000-0992-1993-142
Abstract: 本文提出薄膜单元和六面体二次等参单元的耦合计算模型.由所编制的计算程序进行实例计算,计算结果与解析解一致.
双参数地基板的无单元法

岩石工程学报 , 2005,
Abstract: 将无单元方法用于双参数地基上弹性板的计算分析,给出双参数地基上自由边界弹性板的虚功方程;基于滑动最小二乘(mls)插值函数的特征,选择二次多项式基函数和指数型权函数,满足板弯曲问题对插值函数c1连续性和完备性的要求;根据所得虚功方程推出双参数地基板的无单元方法基本方程,并给出其刚度矩阵的特征。最后通过双参数地基板算例,说明了该方法的正确性和可行性。
关于康熙对生息银两制的初步推广及其在八旗军队中的运用

清史研究 , 1998,
Abstract: ?
关于雍正对生息银两制的整顿及其在全国军队的推广——清代生息银两制度考论之三??

清史研究 , 2004,
Abstract: ?本文在以往研究成果的基础上,主要根据清朝官方资料,从康熙、雍正两帝对比的视角,深入讨论了雍正时期改革整顿生息银两制度的原因、内容及其在全国八旗和绿营系统推广的基本政策与具体实施过程。
浅谈建立体育系统工程

天津体育学院学报 , 1985,
Abstract:
最优教学计划制定与实施

天津体育学院学报 , 1985,
Abstract:
河蚌插核育珠的固核措施
元培,
动物学杂志 , 1980,
Abstract:
无单元法(efm)在筏板基础计算中的应用
,邓安福
岩石工程学报 , 1999,
Abstract: 无单元法是一种新方法,其在板弯曲问题中的应用,尚未见报道。本文将无单元法用于弹性地基上筏板的挠度及内力的计算中,推导了筏板的无单元法刚度矩阵公式,编制了相应的无单元法计算程序,并给出了算例。计算结果表明,无单元法解决筏板基础问题的精度是令人满意的。因此,无单元法用于解决基础板的计算问题是合理可行的。
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