专利风险评价指标体系构建及关键指标国际比较

 从经济安全的角度，基于专利价值链理论，构建了一套专利风险评估指标体系，用于衡量一个国家或地区在专利活动中遭遇风险的程度。利用专利基本活动中的4个关键指标，即专利质量水平、专利转化能力、专利纠纷风险程度和专利贸易国际地位，对美国、日本、韩国、德国和中国进行比较分析，得出2006-2015年，中国的专利发展“快而不高”“大而不强”，但与其他专利强国相比，在专利价值链关键环节的竞争中，中国不占优势，甚至存在较为严重的风险，尤其专利使用费逆差越来越大，对国家经济安全存在一定程度的威胁。     

Recent advances and challenges in materials for 3D bioprinting

3D bioprinting has been developed as a promising technology in a wide variety of biomedical applications. However, the successful implementation of bioprinting is still heavily restricted by the relatively narrow range of printable and biocompatible materials. Recently, many comprehensive reviews of the main bioprinting methods, commonly used bioprinting materials and the trending bioprinting applications have been carried out. In this review, we focused on the trends in the development of materials for 3D bioprinting. The significance and recent advances of ECM-based materials, multi-material and stimuli-responsive materials for bioprinting were summarized successively. Moreover, the challenges in current studies and future perspectives of materials for 3D bioprinting were discussed.     

基于交通信号灯信息的混合动力汽车节能预测控制方法

针对传统混合动力汽车控制方法不考虑已知道路交通信号灯信息对车辆能量管理影响的问题,提出了基于交通信号灯信息的混合动力汽车节能预测控制智能优化策略。通过建立混合动力汽车系统的简化模型,并采用连续广义最小残量方法求解模型预测控制问题。运用MATLAB/Simulink进行仿真,仿真结果验证了交通信号灯信息模型的有效性,以及所设计的模型预测控制算法大幅度提高混合动力汽车的燃油经济性的能力和实时控制性能。研究结果表明所提出的控制策略可以实现车辆行驶轨迹的优化控制,显著提高了车辆的燃油经济性,并满足系统的实时最优控制要求。     

统计物理中三种系综之间的关系

本文从粒子数和能量的涨落和粒子数和能量的平均值与极大值之间的关系，说明统计物理中三种系综之间的区别与联系．     

Reconsideration on Homogeneous Quadratic Riemann Boundary Value Problem

The homogeneous quadratic Riemann boundary value problem (1) with Hoelder continuous coefficients for the normal case was considered by the author in 1997. But the solutions obtained there are incomplete. Here its general method of solution is obtained.     

Supercritical Fluid Carbon Dioxide in the Extraction of Lanolin and Its Alcohol

The use of supercritical fluid carbon dioxide (SF-CO_2) in extraction of lanolin and its alcohol issuperior to the conventional solvent extractionmethod. Its distinctive advantages include highextractive ratio, nontoxic and nonflammablesolvents, and minimal by-product pollution. The     

R ＆ D STRATEGIC INVESTMENT IN AN ASYMMETRICAL CASE

This article analyzes R ＆ D investment decisions in an asymmetrical case. The investment decisions share three important characteristics. First, the investment is completely irreversible. Second, there are two kinds of uncertainties over the future returns from the investment and over technology in R ＆ D process, respectively. Third, there is strategic competition in the asymmetrical case. This article presents the optimal investment threshold values and the optimal investment rule of high-efficient firm （leader）, and shows that the investment threshold values are reduced by competition of two firms. Finally, the mixed investment strategies for two firms, the probability that each firm separately exercises the option to invest, and the probability that two firms simultaneously exercise the option are given in the paper.     

高师大学生体育行为调查与研究

采用问卷调查、数理统计和文献资料法对六所不同地区的高师非体育专业不同专业和各年级师范类大学生的体育行为进行了调查研究。结果表明,影响高师大学生体育行为形成的最主要因素是对体育运动的兴趣;对体育运动的价值取向主要是增进身心健康;对参加体育运动的频率调查显示当前高师大学生参加体育运动的状况并不很理想,只偶尔参加体育运动的同学占调查者的四分之一多;大学生最常参加的体育运动项目主要是球类项目;影响同学参加体育锻炼的主要因素是体育运动场地和器材的缺少;高师大学生最需要提高的体育能力是科学锻炼能力。     

简论技术价值合理性

本文从技术过程论观点出发,结合合理性理论研究成果,提出技术价值合理性概念.通过对技术价值活动过程的考察,揭示技术价值合理性的本质规定是:合目的性与合规律性的统一、合价值性与合工具性的统一、合需要性与合效应性的统一.     

预估极值调节系统最优动态工作点仿真研究

在改进以前研究方法的基础上,提出了一种具有强抗干扰能力的预估极值调节系统最优动态工作点的方法.仿真研究结果表明,以前的方法在理想情况下预估的最优工作点是准确的,但抗干扰能力差.改进后的方法,在强干扰情况下,仍能准确地预估出最优动态工作点,从而表明这种新方法准确、高效、实用且抗干扰能力强.