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The effect of the form(including individual,complex and complex proportion),the dose of graphite,carbon black,carborundum and the alkalinity of base slag on the melting speed were studied.

以石墨、炭黑、碳化硅等三种含碳材料和碱度分别为0.8、1.0和1.2的基渣为原料,研究了炭黑、石墨和SiC加入形式(单独或复合,包括复合时的比例)和加入量以及基渣的碱度等因素对保护渣熔化速度的影响,并对试验数据进行了多元线性回归分析。

Research emphasis is put on thefollowing aspects:First,study of multiwavelet basis(e.g.periodic vector,interpolation vector,multi-dimensional vector)suitable for different practical demands.Second,from perspective of operatorapproximation order,study of normal function approximation operator,contrast and comparison ofwavelet operator and multiwavelet operator and their respective applicable fields.And further,onbasis of the above,exploration of approaches of multiwavelet analysis application in function spacetheoretical research,and higher-lever,more convenient approaches for multi-function spaceapproximation theoretical research.Third,by fully employing unique features of multiwavelet,research action of multiwavelet analysis in the construction of L〓space non-conditionalbasis.Fourth,research such as transient signal analysis,image edge extraction,datacompression,fractal signal analysis.

其一,研究适宜于不同实际问题需要的向量小波基(如周期向量小波、插值向量小波、高维向量小波等);其二,从算子逼近阶的角度研究一般函数逼近算子、小波算子和向量小波算子的异同点以及较优适用领域;在此基础上,探索将向量小波分析应用于函数空间理论研究的途径,寻找更高层次、更便捷地研究多元函数空间逼近理论的方法;其三,充分利用向量小波所独具的完美性质,探索在〓空间〓无条件基的构造中,向量小波分析的价值;其四,对向量小波适用的信号瞬态分析、图像边缘分析、数据压缩保真、分形信号分析等领域应给予特别的重视。

The study sum up a synthesized route which synthesize (2E,4E)-1,6-bis(3-aminopiperidin-1-yl)hexa -2-4-diene-1,6-dione easily.

总结出了一条反,反-1,6-(R-3-氨基哌啶基)粘糠酰氨的一条合成路线,为国内外同行在合成反,反-1,6-(R-3-氨基哌啶基)粘糠酰氨及其性能研究方面提供了大量得数据,为同行们在合成和更深入的研究反,反-1,6-(R-3-氨基哌啶基)粘糠酰氨提供有限的参考,以互相学习交流。

In this part, the densities of sodium benzoate, sodium nitrobenzoate, sodium chlorobenzoate and sodium methylbenzoate in DMFwater mixed solvents have been measured at 298.15K with an Anton Paar Model 55 densimeter. From these densities, apparent molar volumes and partial molar volumes have been calculated, transfer volumes from water to DMF-water mixtures and substituent contributions to the transfer volumes have also been obtained. Solvent and substituent effects are discussed in detail. The Scaled Partical Theory has been applied to the ternary solutions to evaluate the partial molar volumes of cavity formation and the volumes change associated with solute-solvent interaction.

选择了含有取代基团的芳香类有机电解质,主要是苯甲酸钠、硝基苯甲酸钠、氯苯甲酸钠和甲基苯甲酸钠的邻、间、对同分异构体作为研究对象,用DMA 55型振荡管密度计测定了它们在不同质量百分数组成的DMF-水混合溶剂中的密度,利用这些密度数据,计算了表观摩尔体积和偏摩尔体积,得到了这些单取代苯甲酸钠从水到DMF-水混合溶剂中的迁移偏摩尔体积及苯环上不同位置的取代基对迁移偏摩尔体积的贡献值,讨论了溶剂效应和取代基效应,并将定标粒子理论应用于此三元电解质溶液中。

Three typical cross section of subgrade has been chosen to test, one of which is near the rail gap. The dynamic characteristic test of subgrade bed including part of subballast and the long-pe

根据各断面在列车荷载作用下的动应力、动变形、振动速度、加速度和累积沉降等实测数据,分析了各影响因素对基床动力特性的影响和不同加固方案及轨缝附近线路的长期沉降变化规律,有以下基本结论:(1)砂土夯实桩与土工格室加固措施能提高基床的承载力,改善基床

A design and implementation method of the high speed modulation system, which adopted the new techniques of the FPGA and DAC based communication system,is presented in this paper. The effect of the key techniques of this system, such as the high speed digital signal processing for modulation, high speed based-band signal conversion, wide-band modulation, carrier suppression, high frequency and high precision system clock generation, is analyzed, and the solutions and performance analysis is also given. Finally, a high speed modulation system for space applications is implemented, can be used for high speed data transmission with QPSK, 8PSK, QAM or other kinds of digital modulation.

本论文依据正交调制原理,采用基于FPGA和DAC的设计技术,提出了一种高速、灵活的调制系统的设计方法,重点分析了系统组成的调制编码映射、基带脉冲信号转换、信号滤波、调制、系统时钟产生等关键技术环节的影响,解决了高速调制信号处理、高速数据转换、宽带调制、载波抑制、高频率高精度系统时钟的产生等关键技术问题,完成了一种适用于空间应用的高传输速率、多进制数字调制方式和调制体制灵活的数据传输调制系统的设计与实现,可在硬件设计不变的情况下,实现QPSK、8PSK和16QAM等多种调制方式的高速数据传输,QPSK调制速率达到500Mbps。

Along with the development of aircraft design engineering data management system (CADIS/IEDMS), a model of digital product in aircraft design phase, which is composed of integrated document, product structure and change control, is proposed.

结合飞机设计工程数据管理系统的开发,提出并描述了由集成文挡、产品结构和更改控制组成的飞机数字化产品模型,阐述了飞机设计工程数据管理系统的功能模型,重点讨论了系统中产品结构树的生成算法,最后提出了基於工程数据管理的数字化飞机并行设计过程模型。

This paper aimed at the Daqing region based sauce, sweet paraffin base crude oil, the main tasks and objectives will be: 4 million tons / year, 330 days a year, total starts, top of the tower to take heat, the first mid-back to take heat, second heat to take the middle back the distribution of 5:2:3, based on the given crude true boiling point distillation data and products Engler distillation data to calculate the product of various complex decision to cut the program data to calculate the product yield, full-tower heat balance calculation, rendering the whole tower of steam , liquid load distribution.

本文设汁主要针对大庆地区低硫石蜡基原油,主要任务及目标为:400万吨/年,按每年开工330天计,塔顶取热、第一中段回流取热、第二中段回流取热分配为 5:2:3,依据所给的原油实沸点蒸馏数据及产品的恩氏蒸馏数据,计算产品的各物性数据决定切割方案,计算产品收率,进行全塔热平衡计算,绘制全塔汽、液相负荷分布图。

A radial basis function neural network, as well as a back propagation neural network for comparison, is trained and tested using 23 series of centrifuge model test data, 2 fullscale test data, and prototype date of a practical project.

收集23组挡墙离心模型试验数据,2组足尺试验数据,1组实际工程的破坏数据,共26组样本作为训练及检验样本,建立了可用于加筋挡墙设计高度预测的径向基函数网络及误差反传网络模型。

The corresponding relations between the strain of the static state and dynamic cycle load and the volume resistance of the short chopped carbon fibers, short chopped carbon mat, unidirectional carbon fibers reinforced vinyl resin composites is existed. The physical modes of these kinds of composites are also designed based on the experiment data. The resistance and strain of the short chopped fibers reinforced vinyl composites satisfy the equation of y =A + Bx + Cx~2 in the static strain test method and the short chopped mat reinforced vinyl composites is y = A + Bx.

短切碳纤维、短切碳纤维毡、单向碳纤维增强乙烯基酯树脂复合材料在静态和动态循环载荷下,应变与电阻之间有较好的对应性,同时根据实验数据,建立了不同条件下该复合材料应变和电阻变化规律的物理模型,短切碳纤维增强乙烯基酯树脂复合材料在静态拉伸时电阻与应变之间满足:y=A+Bχ+Cχ~2;碳纤维毡增强乙烯基酯树脂复合材料在静态拉伸破坏时电阻与应变之间满足:y=A+Bχ。

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This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。

There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.

双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。