查询词典 decomposition formula

The invention is characterized in that phthalide of general formula, wherein n and X have the meaning cited in the description, is reacted with nitrogen heterocycles of general formula: H-Z, wherein Z has the meaning cited in the description, or with nitrogen heterocycle metal salts of general formula in the presence of an aprotic polar diluent and optionally in the presence of a basic auxiliary reaction agent.

本发明涉及制备通式的2－杂环基甲基苯甲酸衍生物的新的方法，其中n、X和Z具有说明书中给出的意义，该方法提供高收率和高纯度，其特征是，通式的2－苯并呋喃酮，其中n和x具有说明书中给出的含义，与通式的氮杂环：H－Z，其中Z具有说明书中给出的意义，或与通式的氮杂环的金属盐在质子惰性极性稀释剂中并任选在碱性反应助剂存在下反应。

To eliminate abnormity wear of tires in double-front-axle system of heavy truck, the kinematics and dynamics analysis method is set forth. On the base of the results for heavy double-front-axle truck load distributing and manipulate stability, tire uniformity load condition and deficiency steering characteristic condition of heavy double-front-axle truck are put forward. Steering trapezia space movement formula, double-swing-arm space movement formula and double-swing-arm movement formula in actual status of heavy double-front-axle truck are fetched. Optimization models of steering trapezia and double-swing-arm are founded and optimization arithmetics of transmission system in double-front-axle steering are compiled.

本文以消除重型汽车双前桥转向系统轮胎异常磨损等为目的，阐述了双前桥转向系统的运动学、动力学分析方法；在分析了双前桥重型汽车载荷分布和操纵稳定性的基础上，提出了双前桥重型汽车轮胎均载应该满足的条件、双前桥重型汽车具备不足转向特性应该满足的条件；推导了双前桥转向梯形空间运动关系式、双摇臂机构空间运动关系式和双前桥汽车实际工况下的运动关系式，建立了转向梯形和双摇臂机构优化设计模型，编制了双前桥转向传动系统优化算法。

In this paper, a method from the basic matrix of MU(1) formula is used to prove that a tree resolution proof for an unsatisfiable formula F can be transformed into a homomorphism proof from a MU(1) formula for F.

利用基础矩阵的方法证明了：一个不可满足公式 F 的树消解证明，可以在多项式时间内转换成一个来自 MU(1)中公式的同态证明。

We first prove a formula to calculate the magnetic field in the internal region of magnetized objects on the viewpoint of magnetization, and then use the formula to define the point-function demagnetizing tensor and also prove some properties of the tensor. Finally we use this formula to construct a new method to predict the induced magnetic field of naval vessels in a nonuniform applied field, and we call it 'the Magnetization Method', in which the point-function demagnetizing tensor is used.

首先证明了一个基于磁化观点的铁磁物体内部磁场强度计算公式，随后通过该公式导出了点函数去磁张量的概并证明了它的一些性质，最后利用此公式构造了一个预测非均匀外场中舰船感应磁场的新方法——磁化强度法，且在该方法中用到了点函数去磁张量。

Results: The ratio of Lactobacillus bulgaricus and Streptococcus thermophillus is 1:1. The optimum formula of the expanded fermentation is: tomato and carrot juice 3:7, glucose 2%, NFM 4%, and vaccination 3%. The optimum formula of the fermented liquid is: tomato and carrot juice 3:7, fermentation temperature 41℃, fermentation time 24h, and the amount of vaccination 3%. The optimum formula of fermented beverage is: sucrose 5%, citric acid 0.02%, CMC 0.2% and xanthic gluc 0.03%.

结果：用保加利亚乳杆菌和嗜热链球菌按1：1比例作为菌种；种子扩大液的最佳配方：番茄、胡萝卜混合汁配比3：7，2%葡萄糖，2%脱脂乳，3%接种量；发酵液最佳配方：番茄、胡萝卜混合汁配比3：7，发酵温度41℃，发酵时间24h，接种量3%；发酵饮料调配最佳配方；发酵原液中添加蔗糖5%，柠檬酸0.02%，耐酸羧甲基纤维素钠0.2%，黄原胶0.03%。

The formula relation trees are reconstructed into MathML document on the basis of the realized relation trees generated from the formula symbols recognition and structure analysis programs.A formula editor is designed to re-edit and reuse formulas.

在已实现的公式符号识别与结构分析程序所生成的公式关系树基础上，将公式关系树重构为MathML文档，并设计公式编辑器，实现了公式的再编辑和重用。

Based on wave propagation feature, this paper analyses 3D seismic migration algorithms such as alternating direction implicit method, LU decomposition method, and inverse operator approach method. The result shows that the alternating direction implicit method is fast but causes distortion in wave field extrapolation and affects image accuracy; however LU decomposition and inverse operator approach methods are fast while holding circular symmetry of wave field, and are promising in oilfield exploration and development.

在波的传播特征分析基础上，对交替方向隐式法、LU分解法、逆算子逼近法等三维地震偏移算法进行了分析研究，结果表明，交替方向隐式法虽然快捷但是在波场外推中明显产生畸变并影响成像的准确性，而LU分解和逆算子逼近法是保持波场圆对称特征前提下的快速算法，在油田勘探开发中具有较好的应用前景。

The phenolic acid content of litter was significantly reduced with the decomposition time prolonging, and the releasing quantity of phenolic acid was the highest at the tenth day. The amounts of soil Aerobic azotobacter, Ammonifier and Aerobic cellulose-decomposer and the soil chemical properties such as pH, phenolic acid content, NH+4-N and available phosphorus were significantly affected by the litter aqueous extract of four decomposition stages.

凋落物分解的60 d中，凋落物残留量在前30 d内变化最大，30 d后无显著变化；凋落物中酚酸含量随分解时间的延长，呈显著降低的趋势，且在分解10 d时，酚酸释放量最大。4个分解动态的凋落物浸提液显著地改变了土壤好气性自生固氮菌、氨化细菌、好气性纤维素分解菌的数量和土壤pH值、酚酸含量、铵态氮、有效磷等化学性质。

Firstly the Pauli decomposition is used to separate both the symmetric part and antisymmetric part of a multi-look image, then the Krogager decomposition is applied to extract the polarimetric feature of the symmetric image, at last an AdaBoost classifier is adopted to improve the classification performance.

首先利用Pauli分解分离出多视复图像数据的对称部分和非对称部分，然后利用Krogager分解提取出对称部分的极化特征，最后利用AdaBoost算法对所提取的极化特征进行分类。

By means of analyzing the noise error, it is proposed to use an algorithm of singular value decomposition total least squares to conduct the interharmonics estimation, namely taking the noise interference at both sides of the matrix equation into account simultaneously and solving the minimum norm problem by least square method under such condition. In the proposed algorithm by means of singular value decomposition of a new augmented matrix and by use of a simple and practical method to determine the number of principal singular value related to signal to noise ratio, the storage calculation of right singular matrix is performed, thus a more accurate frequency estimation of interharmonics can be obtained.

通过分析噪声误差，提出采用奇异值总体最小二乘(singular value decomposition total least squares，SVDTLS)算法进行间谐波频率估计，即同时考虑矩阵方程两边的噪声干扰，采用SVDTLS算法求解该情况下的最小范数解，通过对增广矩阵进行奇异值分解(singular value decomposition，SVD)，采用简单实用的与信噪比相关的主奇异值个数确定方法对分解的右奇异矩阵进行存储计算，得到了较精确的间谐波频率估计结果。

Cable dampener cannot be rolled up but must be hung over the cable.

缆帆不能被卷起，必须保证处于展开状态

"This skylark is a present from my master," he says.

"这只云雀是我主人献上的礼物。"他说。