基于线性规划模型的AHP中相对权重值求解法

建立了一个线性规划(linear programming,LP)模型,用来求解层次分析法(analytic hierarchyprocess,AHP)中针对上一层某因素而言,本层次与之有关的各因素之间的相对权重值。通过一个实例,把利用此方法求得的结果与利用其它方法求得的结果进行了比较。同时,把此方法拓展应用于因素两两比较的比例值落在某个区间的判断矩阵,得到了满意的结论。     

Web Voice Browser Based on an ISLPC Text.to.Speech Algorithm

A kind of Web voice browser based on improved synchronous linear predictive coding （ISLPC） and Text-toSpeech （TTS） algorithm and Internet application was proposed. The paper analyzes the features of TTS system with ISLPC speech synthesis and discusses the design and implementation of ISLPC TTS-based Web voice browser. The browser integrates Web technology, Chinese information processing, artificial intelligence and the key technology of Chinese ISLPC speech synthesis. It＇s a visual and audible web browser that can improve information precision for network users. The evaluation results show that ISLPC-based TTS model has a better performance than other browsers in voice quality and capability of identifying Chinese characters.     

The k-Error Linear Complexity and the Linear Complexity for pq^n-Periodic Binary Sequences

The k-error linear complexity and the linear complexity of the keystream of a stream cipher are two important standards to scale the randomness of the key stream. For a pq^n-periodic binary sequences where p, q are two odd primes satisfying that 2 is a primitive root module p and q^2 and gcd（p-1, q-1） = 2, we analyze the relationship between the linear complexity and the minimum value k for which the k-error linear complexity is strictly less than the linear complexity.     

Theoretical model of particle orientation distribution function in a cylindrical particle suspension subject to turbulent shear flow

The equation for the orientation probability function of slender cylindrical particles suspended in planar turbulent flows was investigated. After ensemble averaging, the equations for the mean and fluctuating probability function were derived. The equation for the fluctuating probability function appearing in the equation of mean probability function was solved by using the method of characteristics analysis. The orientational dispersion terms due to the random motion of cylindrical particles in the equation of mean probability function are related to the mean probability function and the Lagrangian fluid velocity correlations. The evolution of the mean probability function was described by a modified orientation?space?convection equation, where the dispersion terms account for the randomizing effect of the turbulence.     

Gene flow from genetically modified herbicide-resistant rapeseed to cruciferous weeds

The sexual compatibility between genetically modified (GM) glyphosate-resistant rapeseed variety Q3 (Brassica napus L.) and 5 cruciferous weeds is studied through the observation of fluorescence microscopy and cross-fertility after manual pollination. The results indicated that Q3 (as male) was highly incompatible with Thlaspi arvense L., Capsella bursa?pastoris (L.) Medic, Cardamine hirsuta L. and Rorippa palustris (L.) Besser (as female). Fluorescence microscopic observation showed that growing of pollen tubes terminated on the stigma surface or at the upper 1/3 part of the style. However, B. juncea×Q3 was compatible, and the compatibility index was 1.65. Under the neighboring growth and natural pollination conditions, the rates of gene flow from Q3 to T. arvense, C. bursa-pastoris, C. hirsute and R. palustris were all 0, while it was 0.86% for B. juncea. These results indicate that there is difference in the rate of gene flow between GM rapeseed and cruciferous wild weeds, and frequency of gene flow is highly correlated with sexual compatibility.     

中立型细胞神经网络的稳定性分析

基于线性矩阵不等式（LMI）技巧对中立型细胞神经网络的稳定性问题进行了研究，给出了神经网络稳定的一个充分性条件和系统稳定中立项所必须满足的一个必要条件。仿真结果证明了所给算法的有效性，同时表明所得结论优于Y-M-ZHANG等的结果。     

柴油蜡晶分散剂的制备和降凝效果研究

以马来酸酐和呋喃为原料，经Diels-Alder反应、酯化／酰胺化后合成了柴油蜡晶分散剂3，6-氧桥-1，2，3，6-四氢苯-1，2-二甲酸高级酯／酰胺。酸值测定表明，该合成方法的产率超过90％。对大庆0^#柴油的冷滤点测试表明，该醋晶分散剂与低相对分子质量的乙烯-醋酸乙烯酯共聚物复配效果较差，而与改性的聚丙烯酸高级醇酯二元复配后，可以降低冷滤点7℃，表现出了良好的协同效应。     

“五猴分桃问题”的线性方程组新解法

把一个著名问题归结为一般线性方程组或齐次线性方程组问题,再使用改造的Guass消元法进行消元,使问题解决得十分简单巧妙.     

耦合白噪声作用下线性系统的随机共振

研究了耦合白噪声作用下的二阶过阻尼线性系统中的随机共振现象.基于线性系统理论和相关删去法方法,得到了系统平均输出幅度增益的精确表达式.研究表明:输出幅度增益是噪声的强度、系统的阻尼系数和系统的固有频率,以及激励信号的频率的非单调函数,适当的噪声强度和系统参数可以使噪声情况下的输出幅度增益大于无噪声时的输出幅度增益.     

直接流动注射化学发光法测定头孢噻肟钠

以多聚磷酸作为反应介质,采用高锰酸钾氧化头孢噻肟钠能产生强的化学发光,结合流动注射技术,建立一种简单、灵敏、稳定的流动注射化学发光测定头孢噻肟钠的新方法.探讨反应介质、多聚磷酸浓度、氧化剂高锰酸钾浓度及载液流量对化学发光的影响.研究结果表明,在6.0×10-2mol/L多聚磷酸介质中,以7.0×10-4mol/L高锰酸钾做氧化剂,载液流量为6.34 mL/min时,该法具有最佳灵敏度.在最优实验条件下,该法的线性范围为0~450μg/mL,其线性回归方程为ICL=0.983C 0.875(r=0.999 9,n=11),检出限为1.9μg/mL.对50.0μg/mL头孢噻肟钠进行11次平行测定,方法的相对标准偏差为0.5%.用本法对针剂中头孢噻肟钠的含量进行测定,回收率在98.4%~101.0%之间.初步探讨该化学发光反应的发光机理.