得到
- 与 得到 相关的网络例句 [注:此内容来源于网络,仅供参考]
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First,the feature subspaces are formed from different pose images using ICA and PCA.Then the pose image is transformed into its corresponding frontal face image using the transformation matrix predetermined by learning.Based on this foundation,the wavelet transform is applied to face images,and the authors compare the frontal face feature coefficients directly which are obtained by using the transformation matrix with the feature coefficients of the original face images,the recognition rate is improved greatly.
首先利用ICA和PCA提取不同姿态人脸的特征子空间,然后利用通过训练得到的姿态转换矩阵合成其相对应的正面人脸图像,实验表明ICA人脸识别算法要优于PCA人脸识别算法,并在此基础上用小波对人脸图像进行预处理,据姿态转换矩阵得到的正面人脸特征系数直接进行分类比较,识别率得到了很大的提高。
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Recently, some characterizations of solutions of VVI and its weak sharp minima under strong monotonicity have been proved.
近年来,得到了广泛的研究,其解的性质得到了刻画,其解的弱尖极小已经在强单调条件下得到了证明。
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Then the explicit expression of it under exponential claims and the differential equation are obtained.Thus we discuss the effects of credit and debit interests on it through data analysis. Through the research of the mean,the moment generating function and the higher moments of discounted aggregate dividend payments,we discuss the optimal dividend payments problems.
而对于Gerber-Shiu函数的研究,则是通过随机过程及随机微分方程的知识得到它满足的积分-微分方程及边值问题,然后得到了它在指数索赔下的明确表达式以及Erlang(2)索赔下满足的微分方程,并通过数值分析得到贷款利息及存款利息对它的影响。
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The gray balance curves were obtained by the gray balance function and regression analysis. The main works: The parameters in the mathematic models were ascertained, as well as all the regression functions. The models included the relation between the ink quantity and the solid density, the relation between the gamma and printing contrast, the printing reproduction curves, the dot-gain curves and the dot-gain compensation curves. The fitting accuracies of the regression models were checked out by the correlation coefficient or multiple correlation coefficients. The effect that the ink had on the solid density and the gamma on the printing contrast were analyzed. And the methods of choosing the ink and gamma were gained.
主要工作:确定了墨量与样张实地密度、γ与相对反差、阶调复制曲线、网点扩大曲线以及网点扩大补偿曲线各自数学模型中的参数,得到了回归表达式;得到了各个回归表达式的相关系数或复相关系数,检验了回归模型的拟合程度;分析了墨量对实地密度的影响以及γ对相对反差的影响,并提出了墨量和γ的选取方法;得到了喷墨印刷质量控制的灰平衡控制、网点扩大以及扩大补偿规律。
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In this paper, Newton iteration formula for computing normal depth and critical depth was put forward by mathematical transformation of uniform flow equation and critical flow equation of circular section tunnel. Then, the relationship between the corresponding central angle and the introduced parameters was analyzed. An approximate formula for angle was obtained according to optimal uniform approximation principle. Using this approximate formula as initial value of iteration formula, a direct formula for calculating normal depth and critical depth of circular section tunnel was established after its first iterative.
该文通过对圆形断面均匀流方程与临界流方程的数学变换,分别得到其正常水深与临界水深的牛顿迭代公式,同时,通过对正常水深与临界水深对应的中心角与引入参数之间关系的分析及数值计算,利用最优一致逼近原理分别得到了正常水深与临界水深对应中心角的近似计算式,并以此近似计算式为初值,用迭代方程进行一次迭代得到了圆形断面均匀流水深与临界流水深的直接计算公式。
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The extra income by engaging moral hazard, the income of nonparticipating attestation, the future income discount, the income of standard production, the fine to disobey the standard and the monitor of government can effect the degree of moral hazard.
农户从事道德风险活动时所能得到的额外收益、不参加认证所能得到的收益、未来收益的贴现率、按照标准进行生产所能得到的收益、被发现违反标准进行生产的罚金和政府对农户的道德风险行为的监督程度都会影响农户的道德风险程度。
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The spread paths of common mode and differential mode noises in an SMPS under electrical fast transient/burst are studied and discussed. Hereby for single transient pulse, the vector fitting method is adopted combining rational function approximation according to the tested waveform to construct the a mathematical modeling of frequency, then a pole-residue representation is obtained by partial fraction expansion, and the last step are to draw a state space description and equivalent circuit.
在分析开关电源进行电快速瞬变脉冲群骚扰试验时共模和差模噪声的传播途径的基础上,对于单个脉冲,根据试验数据采用矢量匹配法结合有理函数逼近构造得到频域下的数学模型,通过部分分式展开得到零极点表达式,并最终得到相应的状态空间方程以及等效电路。
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Firstly,the wavelet-based contourlet coding using an SPIHT-like algorithm is utilized on the plain image,and as a result,the compressed datum stream could be achieved which is then mapped to a 3D bit matrix. Afterward,a chaotic sequence is generated by Lorenz chaotic map,and it is preprocessed to a bit sequence which is used to permute and substitute the elements of the 3D bit matrix achieved above. In the end,the processed 3D matrix is mapped back to datum stream,and the encrypted compressed image could be achieved if decoding and inverse transform are performed on the datum stream.
首先采用基于小波的Contourlet变换的类等级树集合分割编码算法对明文图像进行压缩,得到压缩数据流,然后将压缩数据流映射为一个三维位矩阵;利用Lorenz混沌映射产生混沌序列,并对其进行预处理得到比特值序列,根据比特值序列对上述三维位矩阵进行置乱和替代操作;将置乱和替代后的位矩阵重新映射为数据流,并对其进行解码和反变换操作,得到加密后的压缩图像。
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ABSTRACT Immobilized penicillin acylase (from E.coli) was used to catalyze 7 phenylacetamido 3 E propenyl cephalosporanic acid hydrolyzation into 7 amino 3 E propenyl cephalosporanic acid. Then, trans APRA was acylated with hydroxyethyl ester of 4 hydroxy D phenylglycine to obtain trans cefprozil.
以7 苯乙酰氨基 3 E 丙烯基 3 头孢菌素 4 羧酸为原料,在青霉素酰化酶作用下,首先酶法水解得到3 E 丙烯基 3 头孢菌素 4 羧酸,过滤固相酶,滤液调pH分离得到反式APRA固体;在青霉素酰化酶作用下,反式APRA再与对羟基苯甘氨酸乙二醇酯缩合,得到反式头孢丙烯;酶法合成所得的产品与进口反式头孢丙烯对照品一致。
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The reactions of several phenols and 2, 2, 6, 6-tetramethyl-4-substituted piperidine oxoammonium salt have been studied. It was found that these oxoammonium salts are new facile reagents for phenolic coupling.
应用2,2,6,6-四甲基哌啶氧铵盐实现了酚类的氧化偶联反应:对位取代的酚类底物得到邻位-邻位偶联产物;2,6-二取代的酚类底物得到对位-对位偶联产物;2,4,6-三取代的阻碍酚类底物得到苄位氧化偶联产物。
- 推荐网络例句
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On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.
另一方面,更重要的是由于城市住房是一种异质性产品。
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Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.
气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。
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You rap, you know we are not so good at rapping, huh?
你唱吧,你也知道我们并不那么擅长说唱,对吧?