查询词典 synthesis method

To reduce or remove size effect, the size classification elimination method, volume average method and normalization method based on volume were presented and the calibration and prediction results indicate that these three methods could reduce or remove the size effect effectively. The normalization method is more suit to in-line application and obtained better calibration and prediction results with the r of 0.789, 0.858 and 0.947, the RMSEC of 0.596, 0.499 and 0.313, and the RMSEP of 0.606, 0.686 and 0.413 than the results without normalization with the r of 0.716, 0.793 and 0.848, the RMSEC of 0.678, 0.592 and 0.515 and the RMSEP of 0.825, 0.764 and 0.714 for the original spectra, the first derivative spectra and the second derivative spectra with soluble solids content using partial least square method , respectively. 4. Owing to much thick skin of watermelon, contrast experiment was conducted in skin-peeled watermelon and intact watermelon to compare the influence of skin on spectra.

针对西瓜果型大且差异显著的特点，研究果型差异对可见／近红外光谱以及建模与预测结果的影响，并提出三种方法消除或减小这一影响因素，分别是分级消除法、体积平均法和基于体积的正则化方法，其中基于体积的正则化方法，更适合在线生产应用，该方法使果型大小差异明显样品的原始光谱、一阶微分光谱、二阶微分光谱在对可溶性固形物含量检测时，采用偏最小二乘法的建模与预测结果由原来的校正相关系数r分别为0.716、0.793、0.848提高到r分别为0.789、0.858、0.947，均方根校正标准偏差RMSEC由原来的0.678、0.592、0.515分别降为0.596、0.499、0.313，均方根预测标准偏差RMSEP由原来的0.825、0.764、0.714分别降为0.606、0.686、0.413； 4。

The bending load by method of hand lay-up was better than one by method of SCRIMP, the fatigue strength by method of hand lay-up was better, the impact behavior by method of hand lay-up was also better, but ductility by method of SCRIMP was better. The test data may useful for structure design of marine engineer.

同时在冲击试验从能量的观点来出发，从实验方法，到比较单位面积冲击能量、单位宽冲击能量，依照4种不同的冲击能量来做一个比较，以知道哪种工法可以吸收较多的冲击能量，以及何种工法制做出的试片属於脆性破坏，剩余强度较高。

Finally, we offer a method to reduce shift communication. In chapter 5, we invent a method based on linear inequalities representation to perform communication optimization and code generation. This method eliminate the restrictions on processable program placed by RSD based method used by RICE Fortran D Compiler or Symbolic Set based method used by PARADIGM Compiler.

第五章提出了一种以线性不等式组作为工具的更加实用化的通讯优化和结点代码生成方法，该方法克服了RICE大学实现FortranD编译器使用的基于规则段描述子的方法以及PARADIGM编译器使用的基于符号集的方法对输入程序的诸多限制，避免了复杂的规则段运算和符号集运算及其造成的无效性，拓宽了可处理的程序类，增强了编译器的处理能力。

The conventional synthesis method of amine and the amination with microwave method and ionic liquid were summarized.

胺类化合物是医药、农药、染料等许多化学品的重要原料和中间体，对合成胺的传统方法以及微波法和离子液体中的胺化进行了综述。

The result from the three simulation model continues that two step synthesis method is one effective ray tracing method.Because it can accurately persue the least travel time of ray fast and have very strong antinoise nature, so it can be used to the complex medium tomography analysis.

通过构造的数值模型验证了改进算法，表明该算法是一种有效的射线追踪方法，能快速准确的追踪射线的最小走时数据并且具有很强的抗噪性，可以应用到复杂介质的层析成像中。

The imprecise polynomial circuit optimization is based on arithmetic transformation method, considering the fixed point and floating point representation condition first, then give a realization of circuits under different accuracy boundary, trade off error with power dissipation and area, applying branch and bound method to find the solution with minimal cost, determine the minimal word length which satisfies the error bound, make use of the automation synthesis approach to get ultimate optimize structure at the same time.

非精确多项式电路优化基于算术变换方法，首先考虑电路的定点和浮点表示情况，给出电路在不同精度界限下的实现，进行误差和功耗、面积的权衡，然后应用分枝定界方法求解出最小代价电路，决定满足误差要求的最小字长，同时利用自动综合优化方法得到最终的优化结构。

This method was an effective method for the synthesis of composite materials.

这种新型的工艺方法将为新型复合材料的制备提供有效的手段。

It was found that the MCM-22 zeolite catalyst prepared by the VPT method not only showed good crystallinity and high BET surface area, but also better crystal growth orientation and denser structure.The catalyst showed high activity, selectivity and good stability for alkylation of benzene with propylene, especially better selectivity to the end product cumene.The shaped MCM-22 zeolite catalyst prepared by the VPT method has good prospect of industrial application in synthesis of cumene.

结果表明：汽相法制备的MCM-22分子筛催化剂不仅具有较好的结晶度和较高的微孔表面积，而且具有更好的晶体生长取向性和更加致密的结构；在烷基化反应中也具有很好的活性、选择性和稳定性，特别是对目的产物异丙苯的选择性明显高于水热法合成的催化剂，在异丙苯合成上具有很好的应用前景。

A new sequential step diagonal measurement method has been proposed based on the conventional diagonal measurement. In this method, the error in three axis directions can be divided 9 synthesis errors and they can be identified based on the values measured along four body diagonals.

通过对三个坐标轴方向的误差进行矢量分解，在现有的体对角线方法的基础上，提出了一种改进的分步体对角线测量方法，这种方法通过分步测量机床工作空间的四条体对角线可以快速获得分解后得到的9项位置误差。

Students should grasp the classification of the nitration reactions and its industrial application, the main nitration reagents and the nitration method, the classification of the sulfonation reactions, the function of sulfo group and its in the industrial application, sulfonating agents and its industrial application, the separation method for the sulfonated compounds, the widespread applicationof diazonium and the coupled reactions and its in the industry specially employed in the dyes and the pigments synthesis

掌握硝化反应的分类及其在工业上的应用。掌握主要的硝化试剂和硝化方法。掌握磺化反应得分类、磺酸基的作用及其在工业上的应用。掌握磺化剂其在工业上的应用。了解磺化物得分离方法。掌握重氮化及偶合反应及其在工业上特别是在染料和颜料合成中的广泛应用。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。