| 1. | Application of gaussian curvature method in forecasting natural fracture zones in coal seam
运用高斯曲率法预测煤层天然裂隙发育区 |
| 2. | Application of curvature method to fissure forecast of the yingcheng formation stratum of xujiaweizi fault depression
曲率法在松辽盆地徐家围子断陷营城组地层裂缝预测中的应用 |
| 3. | The way and principle of gaussian curvature method for forecasting natural fracture zones in coal seam are discussed
摘要论述了高斯曲率法预测煤层天然裂隙发育区的基本原理和方法。 |
| 4. | The multi - stage axial compressor performance was measured using a streamline curvature method based on two - dimension ( axisymmetric ) mathematical model
摘要采用二维（轴对称）数学模型，应用流线曲率法求解多级轴流压气机特性。 |
| 5. | It is concluded that the gaussian curvature method can reflect the shape variation of coal seam curvature , and the method is effective to forecast natural fracture zones in coal seam
分析表明，高斯曲率法可相对真实地反映煤层曲面形态变化，用该方法预测煤层天然裂隙发育区是切实可行的。 |
| 6. | Based on corresponding relationship of gaussian curvature to macrofractures in coal seam and permeability , the classification criteria of gaussian curvature method for forecasting natural fracture zones is put forward
在分析高斯曲率与试井渗透率、煤层宏观裂隙的对应关系的基础上，提出了高斯曲率法的裂隙发育区分类标准。 |
| 7. | It studies and puts forward the flexibility difference curvature method , and many simulated damage examples show that the method has notable advantages such as high damage identification sensitivity , strong reliability , and visualization and simplicity in amount and graph analysis
本文研究并提出了柔度差值曲率法，多个模拟损伤实例说明该方法具有损伤识别灵敏度高、可靠性强、数值和图形分析直观简便的显著优点。 |
| 8. | It elaborates the contents and requirements of the technique means of fault diagnosis and damage identification for structure , and the present research and application of damage identification for structure with vibration diagnosis technique ; based on the modal parameters , it discusses the theory and technique of the damage identification for structure with the flexibility difference method and curvature modal method , then present the idea of damage identification for structure with flexibility difference curvature method
本文阐述了结构故障诊断的技术手段、结构损伤识别技术的内容与要求，应用振动诊断方法进行结构损伤识别的技术研究与应用现状；论述了基于模态参数，用柔度差值法、曲率模态法进行结构损伤识别的理论与方法，进而提出了柔度差值曲率法进行结构损伤识别的思想与方法。 |
| 9. | The use of the batten interpolation for modal parameter in the curvature modal and flexibility difference curvature method can solve the contradiction between decreasing measure points and the guarantee of identification precision ; the identification program has also been developed in matlab : as long as the former 3 step vibration shape and frequency are input , the value and the graphic representation of damage identification will be obtained by flexibility difference curvature method
本文应用曲率模态法、柔度差值曲率法当中，对模态参数用样条插值，较好地解决了减少测点与保证识别精度的矛盾；在matlab软件中开发了识别程序：只需输入前三阶振型和频率，即可由柔度差值曲率法给出损伤识别的图示与数值结果。 |
