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The transmission spectrum and the absorption spectrum of alcohol shows that the characteristic absorption peak shifts with alcoholicity due to the molecular configuration. A multiple regression model was established based on the position, the intensity and the shape of the characteristic absorption peak, and used to detect alcoholicity. The predictive results show a linear relationship between predicted values and real values in sonic range, and can be used as a means to detect the alcoholicity.

通过对酒精透射光谱和吸收光谱的研究发现，其特征吸收峰随浓度不同发生漂移，从分子结构能级角度对其做了定性解释；根据部分稳定的特征吸收峰处不同波长点的吸光度，利用最小二乘法建立了多元线性回归模型，运用此模型实现了根据特征吸收峰波长的位置、强度、形状来预测酒精浓度，测定数据与样品浓度之间在一定范围呈良好的线性关系。

The fundamental principle of barometry was theoretically analyzed; the function between air pressure and actual altitude above sea-level in certain height range was derived; the algorithm adapted to MCU realiza...

本文从理论上分析了气压测高的基本原理，推算了在一定高度空间内，大气压力与实际海平面高度值的关系函数，使用最小二乘法和线性插值法推算适应单片机处理的算法，并且保证了计算结果的误差范围，分析了各种误差可能对结果产生的影响。

To a certain extent, it has overcome proportionality factor influence and the displacement difference of the Deng interrelatedness analysis method. The experiment proves that in the examination peripheral point's continuity, the complete aspect has certain improvement compared to the Deng interrelatedness model examination.

根据邓氏关联度分析方法建立的改进模型，结合仿射变换和最小二乘法直线拟合，一定程度上克服了邓氏关联度分析方法的比例因子影响和位移差，实验证明在检测边缘点的连续性、完整性方面比用邓氏关联度模型检测的边缘有一定的改进。

Signal processing approach presented in this paper based on neural network algorithm (spectral analysis, Random noise filtering) does not involve the complex multiplication and addition operations. Its computing accuracy is high. It is particularly suitable for the implementation of software and hardware based on DSP chip.

所提出的基于神经网络算法的信号处理方法(频谱分析、随机噪声滤波)不涉及复数的乘法运算和复数的加法运算，计算精度高，特别适合基于DSP芯片的软、硬件实现。

The dissertation expatiate on the distribute algorithm. The key operation in FIR digital filter is multiplication operation, and it can convert multiplication to look up table and addition by adopting the distribute algorithm. It is very suitable to adopt distribute algorithm in FPGA, because there are look-up tables in FPGA.

基于FPGA本身具有查找表的结构，非常适合使用分布式算法，在FIR滤波器的结构设计上，将FIR滤波器中关键的乘法运算转化为查找表的过程和加法运算的过程。

According to the definition of the minimum zone method, the mathematical model is presented for evaluating flatness error and establishing datum plane equation.

分析了常用的近似评定法(三点法、对角线法、最小二乘法等)存在的局限性，根据最小区域法的定义，给出了基准平面方程及平面度误差评定目标函数数学模型的建立方法，并举例说明了采用Matlab进行平面度误差的计算。

In order to realize this target, the compression behavior of SC100-T6 aluminum alloy was studied under the circumatance of different deformation temperature and deformation strain ratio using the Gleeble 1500 thermal stress-strain simulator. The constitutive relationship of this kind of Al-alloy was established using the least squares fit method.

为了实现这一目的，作者应用Gleeble-1500热力学模拟试验机对不同的温度和变形速率下的铝合金SC100-T6进行等温压缩试验，得到了合金的流动应力与成形温度、应变速率的变化规律，并应用最小二乘法建立了该种合金的本构方程。

To obtain the high quality image of discrete phase distribution, the paper puts forward a new algorithm of image reconstruction, which is based on minimum two multiplications and SIRT iterative technique. The experimental results show that the model is reliable, the accuracy of algorithm is higher, the reconstructed image accords with the actual situation, and the quality of reconstructed image is improved.

为获取高质量的离散相分布图像，根据基于约束的最小二乘法和SIRT算法，提出了一种带有最优修正的新的图像重建算法，实验结果证明具有很高的图像重建精度，图像质量得到改善。

Software Description: XCCalc is a Floating-Point calculator program with the following features:- Can calculate with complex numbers like z = x + i*y - Extra precision to millions of decimal places - Uses Fast Hartley Transform to speed-up long multiplies - Separate input and output notation, base 2 to base 36 - Efficient Transcendental functions - Hyperbolic functions - Greatest Common Divisor function.

XCCalc XPCalc 是一款带有下列功能的浮点计算器软件：可以计算诸如 z = x + i*y 这样的复杂算术公式；带有数百万小数位的额外精度；使用 Fast Hartley Transform 以加速长乘法计算；基于2到36个单独的输入和输出表记法；高效的验算函数；双曲线函数；最大公约数函数。

The brief proof is given for " row elementary operation s keep the linear relationship of column vectors of matrix",by using multiplication of partitioned matrix and the relation between elementary matrix and elementary operation.

利用初等矩阵与初等变换的对应关系及分块矩阵的乘法，给出矩阵的行初等变换不改变其列向量组的线性关系的一个简易证明。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。