对称图法化简逻辑函数之对称方形图法

使用一种新的逻辑函数化简的图形法,使得化简5变量及以上的逻辑函数变得简单、直观、容易操作。这种对称方形图法化简方法采用方形图的对称性并在格雷码中找到一种既能满足最小项逻辑相邻,又能保证最小项对称相邻并符合方形图的对称性质的编码。化简过程则是根据方形图的对称性找出所有相邻的最小项,从而消掉n个变化的量,保留(m-n)个不变的量,最后将输出结果表示为与或式得到最终结果。这种化简方法对于任意变量的逻辑函数都适用并且可以将复杂度减少到最小,清晰度提升到一定的高度。     

三维调和方程的狄利克雷问题的解法

对于问题1,一般采用分离变量法和Legendre多项式求解,而本人直接用球的泊松公式求解,通过坐标轴的旋转,巧妙地给出了夹角γ表达式.     

微博时代下谣言的传播与消解——以“7·23”甬温线高铁事故为例

本文以微博时代下谣言的传播与消解为研究对象,借鉴奥尔波特(Gordon Willard All-port)模型,提出事件的重要性、事件的模糊性和信息的不对称性是构成谣言传播法则的观点,并依据此建立网络谣言传播、扩散及消解模型。     

试论武术套路运动中的形神关系及基础

结合武术运动的特点,阐述形与神的含义与关系,并着重从形神兼备的基础及要求上对武术动作的本质与风格特征进行论述。     

运动中最大心率推算公式的探讨

最大心率在体育实践中应用很广泛,由于条件限制,最大心率一般是用公式"HRmax=220-年龄"来推算.运用文献资料法对最大心率推算公式的历史、现状以及影响最大心率推算的因素进行综述.结论:1)目前已有很多根据不同群体归纳出的推算公式,公式"HRmax=220-年龄"可能不适合普通人.2)可能影响最大心率的因素很多,包括:运动训练、海拔高度、肥胖、智力、测试场所等.建议:应当开展广泛的研究,针对不同的群体,研究最大心率的推算公式.     

谈计算麦克劳林公式的间接法

介绍了计算两类复合函数麦克劳林公式的间接法,得到了一般性结论,旨在使学生深入掌握麦克劳林公式的基本理论和计算方法。     

Does LDL-C Estimation Using Anandaraja’s Formula Give a Better Agreement with Direct LDL-C Estimation than the Friedewald’s Formula?

Estimation of low density lipoprotein cholesterol (LDL-C) is crucial in management of coronary artery disease patients. Though a number of homogenous assays are available for estimation of LDL-C, use of calculated LDL-C by Friedewald’s formula (FF) is common in Indian laboratories for logistic reasons. Recently Anandaraja and colleagues have derived a new formula for calculating LDL-C. This formula needs to be evaluated before it is extensively applied in diagnosis. We measured LDL-C by homogenous method (D-LDL-C) in 515 fasting samples. Friedewald’s and Anandaraja’s formulas were used for calculation of LDL-C (F-LDL-C and A-LDL-C, respectively). The mean LDL-C levels were 123.3 ± 53.2, 112.4 ± 50.2 and 109.2 ± 49.8 mg/dl for D-LDL-C, F-LDL-C and A-LDL-C, respectively. There was a statistically significant difference between the results (P > 0.001) obtained by calculation formulas compared to the measured LDL-C. There was underestimation of LDL-C by 10.8 and 14 mg/dl by Friedewald’s and Anandaraja’s formulas respectively. The Pearson’s correlation between F-LDL-C and D-LDL-C was 0.931 and that between A-LDL-C and D-LDL-C was 0.930. Bland–Altman graphs showed a definite agreement between mean and differences of the calculation formulas and direct LDL-C with 95% of values lying with in ±2 SD limits. The mean percentage difference (calculated as {(Calculated LDL-C)-(D-LDL-C)}/D-LDL-C × 100) for F-LDL-C was maximum (−11.6%) at HDL-C ≥ 60 mg/dl and TG levels of 200–300 mg/dl (−10.4%) compared to D-LDL-C. A-LDL-C results gave highest mean percentage difference at total cholesterol concentrations <100 mg/dl (−37.3%) and HDL-C < 40 mg/dl (−17.1%), respectively. The results of our study showed that FF is better in agreement with D-LDL-C than Anandaraja’s formula for estimation of LDL-C by calculation though both lead to its underestimation.     

完善格式条款法律规制的探讨

我国《合同法》有关格式条款的规定在解释上存在不协调和矛盾性,应充分体现对相对人利益的特别保护,同时应注意保证《合同法》的系统性、科学性和逻辑性。     

论传统武术中的女性意象

在封建文化的影响下,女性群体被排除在武术活动之外。但是在传统武术中却有很多以女性意象为素材编创成的传统武术动作和套路。为了解释上述现象文章采用文献资料法,对传统武术中女性意象进入途径,表现形式和意义进行分析。认为女性意象以象形方式进入传统武术中,随着传统武术对意象的改造,武术动作名称和拳诀成为了意象的主要表现形式;在对以武术动作名称和拳诀为表现形式的传统武术中女性意象意义分析中指出,传统武术中女性意象诠释了武术动作过程,标志着武术哲学的完善,显示出创拳者和当时社会的两性观念。     

基于Word文档的数学论文正文格式编排

通过Word文档样式的制作以及公式编辑器使用过程中遇到问题的处理,以实现迅速准确地完成数学论文的格式编排工作.