The discontinuities of values arising from the advance of science and technology at high speed and the uncertainty of the controls on the nature make today s society a high risk society.

An improved SPH method for preventing numerical fractures

First,by extending the method of preventing numerical fractures for regular-distribution particle models to irregular-distribution particle models in SPH,an inserting particle method of preventing numerical fracture is obtained for irregular-distribution model.

In view of the phenomenon that technology acts as a two edge sword in practice which also called the value divorce of technology,this article analyses and illustrates the phenomenon from many aspects.

Comparison of the diagnostic value of DNA analysis and CEA and SF level in benign and malignant pleural effusions;

Diagnostic Value of High-resolution Color Ultrasound to Testicular Torsion;

Diagnostic value of multi-slice spiral CT for traumatic cerebellar hemorrhage;