论国有股减持与上市流通

在对国家股和法人股流动方案的设计中，大多数文章只是笼统地提出了一系列的流通渠通，但却较少考虑在这些流通渠道中可能遇到的障碍，也很少谈及这种种流通方式从短期和长期可能对中国的股市产生的影响。本文在考虑公股流通的问题时，将其同上市公司治理结构的改善、对企业高层管理人员和技术创新人员有效的激励和约束有机地结合起来，对以激励高层管理人员和技术创新人员为目的的股票期权方案作了详细的论述。     

桩基托梁挡土墙在山区公路中的应用

桩基托梁挡土墙受力特点,其在山区公路的适用范围。     

Robust and real-time guidewire simulation based on Kirchhoff elastic rod for vascular intervention training

Virtual reality （VR） based vascular intervention training is a fascinating innovation, which helps trainees develop skills in safety remote from patients. The vascular intervention training involves the use of flexible tipped guidewires to advance diagnostic or therapeutic catheters into a patient＇s vascular anatomy. In this paper, a real-time physically-based modeling approach is proposed to simulate complicated behaviors of guidewires and catheters based on Kirchhoff elastic rod. The slender body of guidewire and catheter is simulated using more efficient special case of naturally straight, isotropic Kirchhoff rods, and the short flexible tip composed of straight or angled design is modeled using more complex generalized Kirchhoff rods. We derive the equations of motion for guidewire and catheter with continuous elastic energy~ and then they were discretized using a linear implicit scheme that guarantees stability and robustness. In addition, we apply a fast-projection method to enforce the inextensibility of guidewire and catheter, while an adaptive sampling algorithm is implemented to improve the simulation efficiency without reducing accuracy. Experimental results reveal that our guidewire simulation method is both robust and efficient in a real-time performance.     

旧沥青混合料再生利用技术的探索与实践

随着环境保护意识的提高，对回收废旧沥青混合料的应用逐步引起了人们的重视。本文主要介绍采用废旧沥青混合料再生技术在沥青混合料生产中的探索与应用，该技术实际使用效果良好。     

The Application of Ridge Regression in Dynamic Balancing of Flexible Rotors Based on Influence Coefficient Method

Introduction The influence coefficient method applied in thedynamic balancing of rotors is based on the experi-ence that the rotor's vibration amplitude is propor-tional to the unbalancing masses of the rotor with-in the range of practical interest under the assump-tion of linearity of both the machine and measuringsystem.According to the influence coefficient con-ception in mechanics,the influence coefficient ismeasured at a specific location,unite trial weightplaced in some known position in…     

隧道浅埋段塌方处理实例分析

当隧道塌方事故发生时,应采取有效的措施防止事故扩大,并在确保施工安全以及隧道结构安全的前提下,采取相对经济合理的方案恢复隧道正常施工。由于,我国地域辽阔,各地区的地理环境存在差异,水文、地质、施工条件不尽相同。就湖南省湘西地区的某座隧道施工案例进行具体的分析,以供参考。