路面混凝土超声、回弹值--抗压强度关系曲线的实测

文章介绍了利用回弹仪、超声波检测仪现场检测路面水泥混凝土的施工质量，并对试验数据进行回归分析，建立测强曲线，以供工程实际参考．     

多卵线与多纽线——卡西尼卵形线与伯努利双纽线的推广

扩展了卡西尼卵形线和伯努利双纽线，得到所谓的多卵线和多纽线，并进一步讨论了这两种曲线的性质及多纽线和有心力场的关系。     

Cyclic behavior test of a new double-arch steel gate

A new double-arch structure for the gate used as tidal barrage and sluice was adopted in Caoe River Dam in China. It was a spatial structure made up of the right arch, the invert arch, the chord, etc., and was designed to bear bilateral loads. To research the cyclic behavior of the new double-arch structure, a scale-model cyclic test was conducted. First, the test setup and test method were presented in detail, and according to the test results, the cyclic behavior and failure characteristics of this structure were discussed. Then by analyzing the test cyclic envelope curve, it was found the curve was divided into three stages: the elastic stage, the local plastic stage and the failure stage at the local yield point and structural yield point. The gate model has local yield strength and structural yield strength, with both their values being bigger than that of the designing load. Therefore, the gate is safe enough for the projects. At last, dynamic property of the gate was analyzed considering additional mass of the water. It was found that the tidal bore shock would not cause resonance vibration of the gate.     

如何利用Word文档绘制化学实验标准曲线

利用Word文档中的Microsoft Graph2000图表，处理分析化学实验数据，绘制标准曲线图，求出线性方程和相关系数，掌握其基本操作，从而使实验结果更准确，图表更直观。     

某类沿可求长闭曲线的超复奇异积分方程

本文研究某类沿可求长闭曲线的超复奇异积分方程的求解问题,将超复奇异积分方程归结为超解析函数的Riesmnn边值问题,建立了方程的可解性,并给出了解的表达式。     

试析弯道对径赛成绩的影响

从场地规则角度看 ,弯道对径赛成绩的影响 ,一是运动员实跑路线的圆周长 ;二是运动员曲线运动时产生的离心力 .探析此问题 ,并提出相应克服办法 ,有助于教练员和运动员提高运动训练水平     

用Mathematica软件绘制分形图

给出了常见分形图的构造规则，并通过迭代函数系统用Mathematica语言程序实现了它们的生成．     

人口总数预测的二次曲线模型

利用指数平滑法，结合本溪市1990～1999年人口总数的统计资料建立了本溪市人口总数预测的二次曲线模型，并利用此模型给出了未来几年内本溪市人口总数的预测值。     

热重分析曲线图标目的编辑加工

目前科技论文中热重分析曲线图标目的编辑加工没有一个统一的或者相对统一的标准,致使科技论文中热重分析曲线图标目的表达形式较为混乱,文中汇总了目前科技论文中最为常见的热重分析曲线图标目的表达形式,并一一进行剖析,指出了这些常见表达形式存在的错误;最后从科学性和规范性角度,指出了编辑加工热重分析曲线时需注意的一些要点,并给出了编辑加工热重分析曲线图标目的建议.     

用Origin变换坐标精确测量RLC并联谐振电路的共振频率

介绍了用Origin变换坐标，将不对称的RLC并联电路的幅频特性曲线对称变换．从而精确求解其共振频率的方法．该方法利用Origin的LabTalk编程和坐标变换等功能．使实验的数据分析和处理过程变得快捷方便．同时又减小了实验误差．