导致拾震器常数标定进入误区的研究

在拾震器的标定过程中，当Ri≤10MΩ时，空气阻尼太大，所测定的D10结果不准确，从而导致S1、a12、RD以及C、β12均不准确，所得V也不准确，同时记录地震的波形也会受到影响，为此建议在标定和工作时，要串上分压电阻R，以此为导向使得放大器输入电阻Ri≥10MΩ时，所得结果才能符合规范要求，本研究通过多次测试均达到良好的效果。     

牛顿内摩擦定律和达西定律的改进

根据物体运动的摩擦力定律和物体变形破坏的库仑定律对牛顿内摩擦定律作了改进 ,进而改进了达西定律。用改进的达西定律与实验资料进行拟合 ,阐述了达西定律与实际偏离的原因。     

The patterns of high-degree thermal free convection and its features in a spherical shell

Introduction Mantle convection is thought to be the most effective way of heat transportation in the earth and the source of driving lithospheric plates (Elasser, 1971). The velocity field of plate motion can be split into poloidal and toroidal parts, which are corresponding to the vertical (i.e. radial) and horizontal motions, respectively, in global model. The toroidal component is manifested in the existences of transform faults and the poloidal one in the presences of convergence and diver…     

沉积岩系互稀释混合元素丰度关系

二元混合成国岩石元素丰度（ｘ，ｙ）遵守分式线性函数定律:式中ａ，ｂ，ｃ，ｄ为丰度关系常数，它们只和岩系中两个已知岩石（１和２）中元素丰度（ｘ_１，ｙ_１；ｘ_２，ｙ_２）有关，并等于其镜像∑变换（混合变换）（ａ，ｂ，ｃ，ｄ）＝∑∑|ｘ_１，ｙ_１；ｘ_２，ｙ_２|（２）元素丰度关系常数中，如果ｂ与Ｃ之比值小于零时，元素丰度ｙ＝Ｘ呈互稀释混合关系。     

Glacial rebound of the British Isles—II. A high-resolution, high-precision model

Observations of ice movements across the British Isles and of sea-level changes around the shorelines during Late Devensian time (after about 25 000 yr BP) have been used to establish a high spatial and temporal resolution model for the rebound of Great Britain and associated sea-level change. The sea-level observations include sites within the margins of the former ice sheet as well as observations outside the glaciated regions such that it has been possible to separate unknown earth model parameters from some ice-sheet model parameters in the inversion of the glacio-hydro-isostatic equations. The mantle viscosity profile is approximated by a number of radially symmetric layers representing the lithosphere, the upper mantle as two layers from the base of the lithosphere to the phase transition boundary at 400 km, the transition zone down to 670 km depth, and the lower mantle. No evidence is found to support a strong layering in viscosity above 670 km other than the high-viscosity lithospheric layer. Models with a low-viscosity zone in the upper mantle or models with a marked higher viscosity in the transition zone are less satisfactory than models in which the viscosity is constant from the base of the lithosphere to the 670 km boundary. In contrast, a marked increase in viscosity is required across this latter boundary. The optimum effective parameters for the mantle beneath Great Britain are: a lithospheric thickness of about 65 km, a mantle viscosity above 670 km of about (4-5) 10²⁰ Pa s, and a viscosity below 670 km greater than 4 × 10²¹ Pa s.     

地幔内变粘度的滞弹性流体运动的三维有限元模型

建立了描述具有无限大Ｐｒａｎｄｌｔ数，变粘度的滞弹性流体运动的稳态和动态三维有限元公式，其中运动方程的有限元公式是由用应力分量表示的平衡方程，再利用牛顿流体的本构关系导出的。这种处理方式，不仅能够分析流体粘度变化所起的动力学作用，而且还能够直接计算温度分布和由流体运动所引起的扰动压力。最后，论证了导出的有限元公式和程序的正确性和可靠性，并给出了具有三维流动特征的算例